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Foulk A, Gouhier T, Choi F, Torossian JL, Matzelle A, Sittenfeld D, Helmuth B. Physiologically informed organismal climatologies reveal unexpected spatiotemporal trends in temperature. CONSERVATION PHYSIOLOGY 2024; 12:coae025. [PMID: 38779431 PMCID: PMC11109819 DOI: 10.1093/conphys/coae025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 03/15/2024] [Accepted: 04/15/2024] [Indexed: 05/25/2024]
Abstract
Body temperature is universally recognized as a dominant driver of biological performance. Although the critical distinction between the temperature of an organism and its surrounding habitat has long been recognized, it remains common practice to assume that trends in air temperature-collected via remote sensing or weather stations-are diagnostic of trends in animal temperature and thus of spatiotemporal patterns of physiological stress and mortality risk. Here, by analysing long-term trends recorded by biomimetic temperature sensors designed to emulate intertidal mussel temperature across the US Pacific Coast, we show that trends in maximal organismal temperature ('organismal climatologies') during aerial exposure can differ substantially from those exhibited by co-located environmental data products. Specifically, using linear regression to compare maximal organismal and environmental (air temperature) climatologies, we show that not only are the magnitudes of body and air temperature markedly different, as expected, but so are their temporal trends at both local and biogeographic scales, with some sites showing significant decadal-scale increases in organismal temperature despite reductions in air temperature, or vice versa. The idiosyncratic relationship between the spatiotemporal patterns of organismal and air temperatures suggests that environmental climatology cannot be statistically corrected to serve as an accurate proxy for organismal climatology. Finally, using quantile regression, we show that spatiotemporal trends vary across the distribution of organismal temperature, with extremes shifting in different directions and at different rates than average metrics. Overall, our results highlight the importance of quantifying changes in the entire distribution of temperature to better predict biological performance and dispel the notion that raw or 'corrected' environmental (and specially air temperature) climatologies can be used to predict organismal temperature trends. Hence, despite their widespread coverage and availability, the severe limitations of environmental climatologies suggest that their role in conservation and management policy should be carefully considered.
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Affiliation(s)
- Aubrey Foulk
- Department of Marine and Environmental Sciences, Northeastern University Marine Science Center, Nahant, MA 01908, USA
| | - Tarik Gouhier
- Department of Marine and Environmental Sciences, Northeastern University Marine Science Center, Nahant, MA 01908, USA
| | - Francis Choi
- Department of Marine and Environmental Sciences, Northeastern University Marine Science Center, Nahant, MA 01908, USA
| | - Jessica L Torossian
- Department of Marine and Environmental Sciences, Northeastern University Marine Science Center, Nahant, MA 01908, USA
- Volpe Center, U.S. Department of Transportation, Cambridge, MA 02142, USA
| | - Allison Matzelle
- Department of Marine and Environmental Sciences, Northeastern University Marine Science Center, Nahant, MA 01908, USA
| | - David Sittenfeld
- Center for the Environment, Museum of Science, Boston, MA 02114, USA
- School of Public Policy and Urban Affairs, Northeastern University, Boston, MA 02115, USA
| | - Brian Helmuth
- Department of Marine and Environmental Sciences, Northeastern University Marine Science Center, Nahant, MA 01908, USA
- School of Public Policy and Urban Affairs, Northeastern University, Boston, MA 02115, USA
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2
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Peñas-Torramilans R, Outeiral R, Santiago J, Vázquez E, Weidberg N. Influence of a changing wave climate on the quality and morphometry of the stalked barnacle Pollicipes pollicipes (Gmelin, 1789), along the coasts of NW Iberia. REVIEWS IN FISH BIOLOGY AND FISHERIES 2024; 34:781-804. [PMID: 38756184 PMCID: PMC11093743 DOI: 10.1007/s11160-024-09838-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 01/13/2024] [Indexed: 05/18/2024]
Abstract
Wave climate is shifting over the last decades along the Atlantic coasts of Europe ultimately driven by large-scale patterns of atmospheric variability forced by anthropogenic global warming. Changes in wave height and surf zone orbital currents are hypothesized to drive marked shifts in the shape of intertidal organisms such as the stalked barnacle Pollicipes pollicipes, whose quality and market price are known to decrease non linearly with the peduncle length: width ratio S. This study evaluates wave trends in NW Iberian Peninsula, using the Spanish Port System 2006-2020 SIMAR wave hindcast. On the other hand, trends in stalked barnacle morphology and quality are estimated from 26 sites at the management regions of Baiona and A Guarda between 2011 and 2020. Results show evidence of temporal changes in barnacle quality and, especially, morphometry caused by simultaneous shifts in winter wave induced orbital currents. Because of the non linear relationship between S and the high quality threshold, large increases in S are usually translated to small reductions in quality. However, we identified a tipping point around S = 2.4 that if surpassed can lead to great drops in barnacle quality. In addition, changes in wave forcing will have different effects at each extraction site, as trends in wave climate are decoupled from barnacle morphometry at steeper sites sheltered from the predominant wave direction. In conclusion, this knowledge could be applied to develop site specific barnacle harvesting strategies based on annual wave climate forecasts. Graphical abstract Supplementary Information The online version contains supplementary material available at 10.1007/s11160-024-09838-2.
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Affiliation(s)
- Raquel Peñas-Torramilans
- CIM – Centro de Investigación Mariña and Departamento de Ecoloxía e Bioloxía Animal, Facultade de Ciencias do Mar, Universidade de Vigo, Vigo, Spain
- Present Address: Departament d’Enginyeria Civil i Ambiental (DECA), Laboratori d’Enginyeria Marítima (LIM), Universitat Politècnica de Catalunya - BarcelonaTech (UPC), C. Jordi Girona, 1-3, 08034 Barcelona, Catalunya Spain
| | - Raquel Outeiral
- Confraría de Pescadores de A Guarda, Baixo Muro, 32, 36780 A Guardia, Galicia Spain
| | - José Santiago
- Cofradía de Pescadores La Anunciada de Baiona, Casa del Mar, Segunda Planta, 36300 Baiona, Spain
| | - Elsa Vázquez
- CIM – Centro de Investigación Mariña and Departamento de Ecoloxía e Bioloxía Animal, Facultade de Ciencias do Mar, Universidade de Vigo, Vigo, Spain
| | - Nicolas Weidberg
- CIM – Centro de Investigación Mariña and Departamento de Ecoloxía e Bioloxía Animal, Facultade de Ciencias do Mar, Universidade de Vigo, Vigo, Spain
- Department of Biological Sciences, University of South Carolina, Columbia, SC USA
- Present Address: Department of Organisms and Systems Biology, University of Oviedo, Oviedo, Spain
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3
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Chust G, Villarino E, McLean M, Mieszkowska N, Benedetti-Cecchi L, Bulleri F, Ravaglioli C, Borja A, Muxika I, Fernandes-Salvador JA, Ibaibarriaga L, Uriarte A, Revilla M, Villate F, Iriarte A, Uriarte I, Zervoudaki S, Carstensen J, Somerfield PJ, Queirós AM, McEvoy AJ, Auber A, Hidalgo M, Coll M, Garrabou J, Gómez-Gras D, Linares C, Ramírez F, Margarit N, Lepage M, Dambrine C, Lobry J, Peck MA, de la Barra P, van Leeuwen A, Rilov G, Yeruham E, Brind'Amour A, Lindegren M. Cross-basin and cross-taxa patterns of marine community tropicalization and deborealization in warming European seas. Nat Commun 2024; 15:2126. [PMID: 38459105 PMCID: PMC10923825 DOI: 10.1038/s41467-024-46526-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 03/01/2024] [Indexed: 03/10/2024] Open
Abstract
Ocean warming and acidification, decreases in dissolved oxygen concentrations, and changes in primary production are causing an unprecedented global redistribution of marine life. The identification of underlying ecological processes underpinning marine species turnover, particularly the prevalence of increases of warm-water species or declines of cold-water species, has been recently debated in the context of ocean warming. Here, we track changes in the mean thermal affinity of marine communities across European seas by calculating the Community Temperature Index for 65 biodiversity time series collected over four decades and containing 1,817 species from different communities (zooplankton, coastal benthos, pelagic and demersal invertebrates and fish). We show that most communities and sites have clearly responded to ongoing ocean warming via abundance increases of warm-water species (tropicalization, 54%) and decreases of cold-water species (deborealization, 18%). Tropicalization dominated Atlantic sites compared to semi-enclosed basins such as the Mediterranean and Baltic Seas, probably due to physical barrier constraints to connectivity and species colonization. Semi-enclosed basins appeared to be particularly vulnerable to ocean warming, experiencing the fastest rates of warming and biodiversity loss through deborealization.
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Affiliation(s)
- Guillem Chust
- AZTI Marine Research, Basque Research and Technology Alliance (BRTA), Txatxarramendi Ugartea z/g, 48395, Sukarrieta, Spain.
| | - Ernesto Villarino
- AZTI Marine Research, Basque Research and Technology Alliance (BRTA), Txatxarramendi Ugartea z/g, 48395, Sukarrieta, Spain
- Oregon State University, College of Earth, Ocean and Atmospheric Science, Corvallis, USA
| | - Matthew McLean
- Department of Biology and Marine Biology, Center for Marine Science, University of North Carolina Wilmington, Wilmington, NC, USA
| | - Nova Mieszkowska
- Marine Biological Association, Citadel hill, Plymouth, Devon, PL1 2PB, UK
- University of Liverpool, Liverpool, UK
| | | | - Fabio Bulleri
- Dipartimento di Biologia, Università di Pisa, CoNISMa, Via Derna 1, 56126, Pisa, Italy
| | - Chiara Ravaglioli
- Dipartimento di Biologia, Università di Pisa, CoNISMa, Via Derna 1, 56126, Pisa, Italy
| | - Angel Borja
- AZTI Marine Research, Basque Research and Technology Alliance (BRTA), Txatxarramendi Ugartea z/g, 48395, Sukarrieta, Spain
| | - Iñigo Muxika
- AZTI Marine Research, Basque Research and Technology Alliance (BRTA), Txatxarramendi Ugartea z/g, 48395, Sukarrieta, Spain
| | - José A Fernandes-Salvador
- AZTI Marine Research, Basque Research and Technology Alliance (BRTA), Txatxarramendi Ugartea z/g, 48395, Sukarrieta, Spain
| | - Leire Ibaibarriaga
- AZTI Marine Research, Basque Research and Technology Alliance (BRTA), Txatxarramendi Ugartea z/g, 48395, Sukarrieta, Spain
| | - Ainhize Uriarte
- AZTI Marine Research, Basque Research and Technology Alliance (BRTA), Txatxarramendi Ugartea z/g, 48395, Sukarrieta, Spain
| | - Marta Revilla
- AZTI Marine Research, Basque Research and Technology Alliance (BRTA), Txatxarramendi Ugartea z/g, 48395, Sukarrieta, Spain
| | - Fernando Villate
- Department of Plant Biology and Ecology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), PO Box 644, E-48080, Bilbao, Spain
- Research Centre for Experimental Marine Biology and Biotechnology Plentzia Marine Station PiE-UPV/EHU, Areatza Pasalekua z/g, E-48620, Plentzia, Spain
| | - Arantza Iriarte
- Research Centre for Experimental Marine Biology and Biotechnology Plentzia Marine Station PiE-UPV/EHU, Areatza Pasalekua z/g, E-48620, Plentzia, Spain
- Department of Plant Biology and Ecology, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, E-01006, Gasteiz, Spain
| | - Ibon Uriarte
- Research Centre for Experimental Marine Biology and Biotechnology Plentzia Marine Station PiE-UPV/EHU, Areatza Pasalekua z/g, E-48620, Plentzia, Spain
- Department of Plant Biology and Ecology, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, E-01006, Gasteiz, Spain
| | - Soultana Zervoudaki
- Institute of Oceanography, Hellenic Centre for Marine Research, Athens, Greece
| | - Jacob Carstensen
- Aarhus University, Department of Ecoscience, Frederiksborgvej 399, DK-4000, Roskilde, Denmark
| | - Paul J Somerfield
- Plymouth Marine Laboratory, Plymouth, UK
- University of Plymouth, Plymouth, UK
| | - Ana M Queirós
- Plymouth Marine Laboratory, Plymouth, UK
- University of Exeter, Exeter, UK
| | | | - Arnaud Auber
- IFREMER, Unité Halieutique Manche Mer du Nord, Laboratoire Ressources Halieutiques, 150 quai Gambetta, BP699, 62321, Boulogne-sur-Mer, France
| | - Manuel Hidalgo
- Spanish Institute of Oceanography (IEO, CSIC), Balearic Oceanographic Center (COB), Ecosystem Oceanography Group (GRECO), Moll de Ponent s/n, 07015, Palma, Spain
| | - Marta Coll
- Institute of Marine Science (ICM-CSIC), Passeig Marítim de la Barceloneta, n° 37-49, 08003, Barcelona, Spain
| | - Joaquim Garrabou
- Institute of Marine Science (ICM-CSIC), Passeig Marítim de la Barceloneta, n° 37-49, 08003, Barcelona, Spain
| | - Daniel Gómez-Gras
- Hawai'i Institute of Marine Biology, University of Hawai'i at Mānoa, Kaneohe, Hawaii, USA
- Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Universitat de Barcelona (UB), Barcelona, Spain
- Institut de Recerca de la Biodiversitat (IRBio), Universitat de Barcelona (UB), Barcelona, Spain
| | - Cristina Linares
- Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Universitat de Barcelona (UB), Barcelona, Spain
- Institut de Recerca de la Biodiversitat (IRBio), Universitat de Barcelona (UB), Barcelona, Spain
| | - Francisco Ramírez
- Institute of Marine Science (ICM-CSIC), Passeig Marítim de la Barceloneta, n° 37-49, 08003, Barcelona, Spain
| | - Núria Margarit
- Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Universitat de Barcelona (UB), Barcelona, Spain
| | - Mario Lepage
- INRAE, EABX Unit, Aquatic Ecosystems and Global Changes, 50 avenue de Verdun, 33612, Cestas, Cedex, France
| | - Chloé Dambrine
- INRAE, EABX Unit, Aquatic Ecosystems and Global Changes, 50 avenue de Verdun, 33612, Cestas, Cedex, France
| | - Jérémy Lobry
- INRAE, EABX Unit, Aquatic Ecosystems and Global Changes, 50 avenue de Verdun, 33612, Cestas, Cedex, France
| | - Myron A Peck
- Department of Coastal Systems, Royal Netherlands Institute for Sea Research, PO Box 59, 1790 AB, Den Burg (Texel), the Netherlands
| | - Paula de la Barra
- Department of Coastal Systems, Royal Netherlands Institute for Sea Research, PO Box 59, 1790 AB, Den Burg (Texel), the Netherlands
| | - Anieke van Leeuwen
- Department of Coastal Systems, Royal Netherlands Institute for Sea Research, PO Box 59, 1790 AB, Den Burg (Texel), the Netherlands
| | - Gil Rilov
- National Institute of Oceanography, Israel Oceanographic and Limnological Research (IOLR), Haifa, Israel
| | - Erez Yeruham
- National Institute of Oceanography, Israel Oceanographic and Limnological Research (IOLR), Haifa, Israel
| | - Anik Brind'Amour
- Ecosystem Dynamics and Sustainability (UMR DECOD), IFREMER, Institut Agro, INRAE, Rue de l'Ile d'Yeu, Nantes, France
| | - Martin Lindegren
- Centre for Ocean Life, National Institute of Aquatic Resources, Technical University of Denmark, Kemitorvet, Building 202, 2800 Kgs, Lyngby, Denmark
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4
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Muñoz-Lechuga R, Lino PG, González-Ortegón E. Interspecific, ontogenetic and temporal variations in stable isotopes of small tuna species in the northeast Atlantic Ocean. ISOTOPES IN ENVIRONMENTAL AND HEALTH STUDIES 2024; 60:13-31. [PMID: 38127307 DOI: 10.1080/10256016.2023.2289956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 10/16/2023] [Indexed: 12/23/2023]
Abstract
In order to study the trophic level of small tuna species and their contribution to the carbon flow in pelagic food webs, an analysis of carbon and nitrogen stable isotopes was carried out. The investigation was focused on four small tuna species (Auxis rochei, Auxis thazard, Euthynnus alletteratus and Sarda sarda) commonly harvested in the northeast Atlantic Ocean. The isotope analysis showed how the results for S. sarda are different from the rest of the species analysed, with a higher trophic level, similar to other major tuna species. The greatest niche overlap in δ13C and δ15N occurs among A. rochei, A. thazard and E. alletteratus. Auxis rochei and E. alletteratus showed a size-dependent variability in δ15N, and in δ13C for S. sarda. The small tuna S. sarda exhibits the highest migration rates among various geographical areas in comparison to other small pelagic tunas, and the seasonal variability of isotope values in the area studied can be attributed to the incorporation of larger individuals with a higher lipid content. The results of this work provide new information on the ecological role played by small tuna in food webs, which is more complex and varied than currently thought. This knowledge is essential for a more effective management of fisheries.
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Affiliation(s)
- Rubén Muñoz-Lechuga
- Portuguese Institute for the Ocean and Atmosphere (IPMA), Olhão, Portugal
- Departamento de Biología, Facultad de Ciencias del Mar y Ambientales, Universidad de Cádiz, Puerto Real, Spain
| | - Pedro G Lino
- Portuguese Institute for the Ocean and Atmosphere (IPMA), Olhão, Portugal
| | - Enrique González-Ortegón
- Instituto de Ciencias Marinas de Andalucía - Consejo Superior de Investigaciones Científicas (ICMAN-CSIC), Puerto Real, Spain
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5
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Kemgang Ghomsi FE, Raj RP, Bonaduce A, Halo I, Nyberg B, Cazenave A, Rouault M, Johannessen OM. Sea level variability in Gulf of Guinea from satellite altimetry. Sci Rep 2024; 14:4759. [PMID: 38413702 PMCID: PMC10899594 DOI: 10.1038/s41598-024-55170-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 02/21/2024] [Indexed: 02/29/2024] Open
Abstract
Coastal zones with dense populations, low elevations and/or inadequate adaptive capacity are on the frontline of unprecedented impacts from climate change. The Gulf of Guinea (GoG), stretching from Liberia to Gabon, is in particular vulnerable to coastal flooding caused by local and/or climate-induced sea level rise. In this region, interannual to decadal coastal sea level changes remain poorly understood, mainly due to a lack of tide gauge stations. Here we use nearly three decades (1993-2021) of satellite altimetry data to study the link between the Equatorial Atlantic and coastal GoG sea level variability. The rate of mean sea level rise increased from 3.47 to 3.89 ± 0.10 mm/yr from the Equatorial oceanic domain to the GoG coastal area, with an acceleration of 0.094 ± 0.050 mm/yr2. This corresponds to a mean sea level rise of about 8.9 cm over the entire altimetry period, 1993-2021. We focus on the (extreme) warm/cold events that occur in both the GoG during Atlantic Niños, and along the Angola-Namibia coast during Benguela Niños. Both events are driven by remote forcing via equatorial Kelvin waves and local forcing by local winds, freshwater fluxes and currents intensifications. Analysis of altimetry-based sea level, sea surface temperature anomalies, 20 °C isotherm based PIRATA moorings, and the Argo-based steric and thermometric sea level allows us to follow the coastal trapped waves (CTWs) along the GoG, and its link with major events observed along the strong Equatorial Atlantic warmings in 2010, 2012, 2019 and 2021. Both 2019 and 2021 warming have been identified as the warmest event ever reported in this region during the last 40 years. A lag of 1 month is observed between equatorial and West African coastal trapped wave propagation. This observation may help to better anticipate and manage the effects of extreme events on local ecosystems, fisheries, and socio-economic activities along the affected coastlines. In order to enable informed decision-making and guarantee the resilience of coastal communities in the face of climate change, it emphasises the significance of ongoing study in this field.
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Affiliation(s)
- Franck Eitel Kemgang Ghomsi
- Department of Oceanography, University of Cape Town, Cape Town, South Africa.
- Geodesy Research Laboratory, National Institute of Cartography, P.O. Box 157, Yaoundé, Cameroon.
- Nansen-Tutu Center for Marine Environmental Research, University of Cape Town, Cape Town, South Africa.
| | - Roshin P Raj
- Nansen Environmental and Remote Sensing Center and Bjerknes Center for Climate Research, Bergen, Norway
| | - Antonio Bonaduce
- Nansen Environmental and Remote Sensing Center and Bjerknes Center for Climate Research, Bergen, Norway
| | - Issufo Halo
- Nansen-Tutu Center for Marine Environmental Research, University of Cape Town, Cape Town, South Africa
- Department of Forestry, Fisheries and the Environment, Oceans & Coasts Research, Cape Town, South Africa
| | - Björn Nyberg
- 7Analytics, Innovation District Solheimsviken 7c, 5054, Bergen, Norway
| | - Anny Cazenave
- Laboratoire d'Etudes en Géophysique et Océanographie Spatiales (LEGOS), 18 Av. E. Belin, 31401, Toulouse Cedex 9, France
| | - Mathieu Rouault
- Department of Oceanography, University of Cape Town, Cape Town, South Africa
- Nansen-Tutu Center for Marine Environmental Research, University of Cape Town, Cape Town, South Africa
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6
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Copedo JS, Webb SC, Ragg NLC, Venter L, Alfaro AC. Histopathological investigation of four populations of abalone (Haliotis iris) exhibiting divergent growth performance. J Invertebr Pathol 2024; 202:108042. [PMID: 38103724 DOI: 10.1016/j.jip.2023.108042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 09/24/2023] [Accepted: 12/10/2023] [Indexed: 12/19/2023]
Abstract
The black-foot abalone (pāua), Haliotis iris, is a unique and valuable species to New Zealand with cultural importance for Māori. Abalone are marine gastropods that can display a high level of phenotypic variation, including slow-growing or 'stunted' variants. This investigation focused on identifying factors that are associated with growth performance, with particular interest in the slow-growing variants. Tissue alterations in H. iris were examined using histopathological techniques, in relation to growth performance, contrasting populations classified by commercial harvesters as 'stunted' (i.e., slow-growing) and 'non-stunted' (i.e., fast-growing) from four sites around the Chatham Islands (New Zealand). Ten adults and 10 sub-adults were collected from each of the four sites and prepared for histological assessment of condition, tissue alterations, presence of food and presence of parasites. The gut epithelium connective tissue, digestive gland, gill lamellae and right kidney tissues all displayed signs of structural differences between the slow-growing and fast-growing populations. Overall, several factors appear to be correlated to growth performance. The individuals from slow-growing populations were observed to have more degraded macroalgal fragments in the midgut, increased numbers of ceroid granules in multiple tissues, as well as increased prevalence of birefringent mineral crystals and haplosporidian-like parasites in the right kidney. The histopathological approaches presented here complement anecdotal field observations of reduced seaweed availability and increased sand incursion at slow-growing sites, while providing an insight into the health of individual abalone and sub-populations. The approaches described here will ultimately help elucidate the drivers behind variable growth performance which, in turn, supports fisheries management decisions and future surveillance programs.
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Affiliation(s)
- Joanna S Copedo
- Cawthron Institute, Nelson 7042, New Zealand; Aquaculture Biotechnology Research Group, Department of Environmental Sciences, School of Science, Auckland University of Technology, Private Bag 92006, Auckland 1142, New Zealand.
| | | | | | - Leonie Venter
- Aquaculture Biotechnology Research Group, Department of Environmental Sciences, School of Science, Auckland University of Technology, Private Bag 92006, Auckland 1142, New Zealand
| | - Andrea C Alfaro
- Aquaculture Biotechnology Research Group, Department of Environmental Sciences, School of Science, Auckland University of Technology, Private Bag 92006, Auckland 1142, New Zealand
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Klein JD, Maduna SN, Dicken ML, da Silva C, Soekoe M, McCord ME, Potts WM, Hagen SB, Bester‐van der Merwe AE. Local adaptation with gene flow in a highly dispersive shark. Evol Appl 2024; 17:e13628. [PMID: 38283610 PMCID: PMC10810256 DOI: 10.1111/eva.13628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 11/06/2023] [Accepted: 11/27/2023] [Indexed: 01/30/2024] Open
Abstract
Adaptive divergence in response to environmental clines are expected to be common in species occupying heterogeneous environments. Despite numerous advances in techniques appropriate for non-model species, gene-environment association studies in elasmobranchs are still scarce. The bronze whaler or copper shark (Carcharhinus brachyurus) is a large coastal shark with a wide distribution and one of the most exploited elasmobranchs in southern Africa. Here, we assessed the distribution of neutral and adaptive genomic diversity in C. brachyurus across a highly heterogeneous environment in southern Africa based on genome-wide SNPs obtained through a restriction site-associated DNA method (3RAD). A combination of differentiation-based genome-scan (outflank) and genotype-environment analyses (redundancy analysis, latent factor mixed models) identified a total of 234 differentiation-based outlier and candidate SNPs associated with bioclimatic variables. Analysis of 26,299 putatively neutral SNPs revealed moderate and evenly distributed levels of genomic diversity across sites from the east coast of South Africa to Angola. Multivariate and clustering analyses demonstrated a high degree of gene flow with no significant population structuring among or within ocean basins. In contrast, the putatively adaptive SNPs demonstrated the presence of two clusters and deep divergence between Angola and all other individuals from Namibia and South Africa. These results provide evidence for adaptive divergence in response to a heterogeneous seascape in a large, mobile shark despite high levels of gene flow. These results are expected to inform management strategies and policy at the national and regional level for conservation of C. brachyurus populations.
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Affiliation(s)
- Juliana D. Klein
- Molecular Breeding and Biodiversity Research Group, Department of GeneticsStellenbosch UniversityStellenboschSouth Africa
| | - Simo N. Maduna
- Department of Ecosystems in the Barents Region, Svanhovd Research StationNorwegian Institute of Bioeconomy Research—NIBIOSvanvikNorway
| | - Matthew L. Dicken
- KwaZulu‐Natal Sharks BoardUmhlanga RocksSouth Africa
- Institute for Coastal and Marine Research (CMR), Ocean Sciences CampusNelson Mandela UniversityGqeberhaSouth Africa
| | - Charlene da Silva
- Department of Forestry, Fisheries and EnvironmentRogge BaySouth Africa
| | - Michelle Soekoe
- Division of Marine ScienceReel Science CoalitionCape TownSouth Africa
| | - Meaghen E. McCord
- South African Shark ConservancyHermanusSouth Africa
- Canadian Parks and Wilderness SocietyVancouverBritish ColumbiaCanada
| | - Warren M. Potts
- Department of Ichthyology and Fisheries ScienceRhodes UniversityMakhandaSouth Africa
- South African Institute for Aquatic BiodiversityMakhandaSouth Africa
| | - Snorre B. Hagen
- Department of Ecosystems in the Barents Region, Svanhovd Research StationNorwegian Institute of Bioeconomy Research—NIBIOSvanvikNorway
| | - Aletta E. Bester‐van der Merwe
- Molecular Breeding and Biodiversity Research Group, Department of GeneticsStellenbosch UniversityStellenboschSouth Africa
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8
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Ayejoto DA, Agbasi JC, Nwazelibe VE, Egbueri JC, Alao JO. Understanding the connections between climate change, air pollution, and human health in Africa: Insights from a literature review. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART C, TOXICOLOGY AND CARCINOGENESIS 2023; 41:77-120. [PMID: 37880976 DOI: 10.1080/26896583.2023.2267332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2023]
Abstract
Climate change and air pollution are two interconnected global challenges that have profound impacts on human health. In Africa, a continent known for its rich biodiversity and diverse ecosystems, the adverse effects of climate change and air pollution are particularly concerning. This review study examines the implications of air pollution and climate change for human health and well-being in Africa. It explores the intersection of these two factors and their impact on various health outcomes, including cardiovascular disease, respiratory disorders, mental health, and vulnerable populations such as children and the elderly. The study highlights the disproportionate effects of air pollution on vulnerable groups and emphasizes the need for targeted interventions and policies to protect their health. Furthermore, it discusses the role of climate change in exacerbating air pollution and the potential long-term consequences for public health in Africa. The review also addresses the importance of considering temperature and precipitation changes as modifiers of the health effects of air pollution. By synthesizing existing research, this study aims to shed light on complex relationships and highlight the key findings, knowledge gaps, and potential solutions for mitigating the impacts of climate change and air pollution on human health in the region. The insights gained from this review can inform evidence-based policies and interventions to mitigate the adverse effects on human health and promote sustainable development in Africa.
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Affiliation(s)
- Daniel A Ayejoto
- Department of Environmental and Sustainability Sciences, Texas Christian University, Fort Worth, Texas, USA
| | - Johnson C Agbasi
- Department of Geology, Chukwuemeka Odumegwu Ojukwu University, Uli, Anambra State, Nigeria
| | - Vincent E Nwazelibe
- Department of Earth Sciences, Albert Ludwig University of Freiburg, Freiburg, Germany
| | - Johnbosco C Egbueri
- Department of Geology, Chukwuemeka Odumegwu Ojukwu University, Uli, Anambra State, Nigeria
| | - Joseph O Alao
- Department of Physics, Air Force Institute of Technology, Kaduna, Nigeria
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9
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Dong YW. Roles of multi-level temperature-adaptive responses and microhabitat variation in establishing distributions of intertidal species. J Exp Biol 2023; 226:jeb245745. [PMID: 37909420 DOI: 10.1242/jeb.245745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
How intertidal species survive their harsh environment and how best to evaluate and forecast range shifts in species distribution are two important and closely related questions for intertidal ecologists and global change biologists. Adaptive variation in responses of organisms to environmental change across all levels of biological organization - from behavior to molecular systems - is of key importance in setting distribution patterns, yet studies often neglect the interactions of diverse types of biological variation (e.g. differences in thermal optima owing to genetic and acclimation-induced effects) with environmental variation, notably at the scale of microhabitats. Intertidal species have to cope with extreme and frequently changing thermal stress, and have shown high variation in thermal sensitivities and adaptive responses at different levels of biological organization. Here, I review the physiological and biochemical adaptations of intertidal species to environmental temperature on multiple spatial and temporal scales. With fine-scale datasets for the thermal limits of individuals and for environmental temperature variation at the microhabitat scale, we can map the thermal sensitivity for each individual in different microhabitats, and then scale up the thermal sensitivity analysis to the population level and, finally, to the species level by incorporating physiological traits into species distribution models. These more refined mechanistic models that include consideration of physiological variations have higher predictive power than models that neglect these variations, and they will be crucial to answering the questions posed above concerning adaptive mechanisms and the roles they play in governing distribution patterns in a rapidly changing world.
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Affiliation(s)
- Yun-Wei Dong
- Ministry Key Laboratory of Mariculture, Fisheries College, Ocean University of China, Qingdao 266001, China
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10
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Zhang Y, Xie D, Lin Q, Zhou X. Seawater warming intensifies nickel toxicity to a marine copepod: a multigenerational perspective. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 264:106730. [PMID: 37862730 DOI: 10.1016/j.aquatox.2023.106730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 10/11/2023] [Accepted: 10/13/2023] [Indexed: 10/22/2023]
Abstract
Due to human activities, marine organisms are frequently co-stressed with nickel (Ni) pollution and seawater warming; nevertheless, very scarce information is known about their interaction in marine biota under a multigenerational scenario. Here, after verifying the interaction of Ni and warming via a 48-h acute test, we conducted a multigenerational experiment (F0-F2), in which the marine copepod Tigriopus japonicus was exposed to Ni at environmentally realistic concentrations (0, 2, and 20 µg/L) under ambient (22℃) and predicted seawater warming (26℃) conditions. Ni accumulation and the important life history traits were analyzed for each generation. Results showed that Ni exposure caused Ni bioaccumulation and thus compromised the survivorship and egg production of T. japonicus. In particular, seawater warming significantly increased Ni accumulation, thus intensifying the negative effects of Ni on its survivorship and development. Overall, this study suggests that Ni multigenerational exposure even at environmentally realistic concentrations could produce a significant impact on marine copepod's health, and this impact would be intensified under the projected seawater warming, providing a mechanistic understanding of the interaction between warming and Ni pollution in marine organisms from a multigenerational perspective.
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Affiliation(s)
- Yunlei Zhang
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems /College of the Environment & Ecology, Xiamen University, Xiamen 361102, China
| | - Dongmei Xie
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems /College of the Environment & Ecology, Xiamen University, Xiamen 361102, China
| | - Qingxian Lin
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems /College of the Environment & Ecology, Xiamen University, Xiamen 361102, China.
| | - Xiaoping Zhou
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems /College of the Environment & Ecology, Xiamen University, Xiamen 361102, China.
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11
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Zhan Y, Ning B, Sun J, Chang Y. Living in a hypoxic world: A review of the impacts of hypoxia on aquaculture. MARINE POLLUTION BULLETIN 2023; 194:115207. [PMID: 37453286 DOI: 10.1016/j.marpolbul.2023.115207] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 06/12/2023] [Accepted: 06/18/2023] [Indexed: 07/18/2023]
Abstract
Hypoxia is a harmful result of anthropogenic climate change. With the expansion of global low-oxygen zones (LOZs), many organisms have faced unprecedented challenges affecting their survival and reproduction. Extensive research has indicated that oxygen limitation has drastic effects on aquatic animals, including on their development, morphology, behavior, reproduction, and physiological metabolism. In this review, the global distribution and formation of LOZs were analyzed, and the impacts of hypoxia on aquatic animals and the molecular responses of aquatic animals to hypoxia were then summarized. The commonalities and specificities of the response to hypoxia in aquatic animals in different LOZs were discussed lastly. In general, this review will deepen the knowledge of the impacts of hypoxia on aquaculture and provide more information and research directions for the development of fishery resource protection strategies.
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Affiliation(s)
- Yaoyao Zhan
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian 116023, Liaoning, PR China
| | - Bingyu Ning
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian 116023, Liaoning, PR China
| | - Jingxian Sun
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian 116023, Liaoning, PR China; College of Life Science, Liaoning Normal University, Dalian 116029, Liaoning, PR China
| | - Yaqing Chang
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian 116023, Liaoning, PR China; College of Life Science, Liaoning Normal University, Dalian 116029, Liaoning, PR China.
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12
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Khosravi M, Thieltges DW, Díaz-Morales DM, Bommarito C, Vajedsamiei J. Filtration and respiration responses of mussels ( Mytilus edulis) to trematode parasite infections ( Renicola roscovita) and transient heat exposure. Int J Parasitol Parasites Wildl 2023; 21:296-304. [PMID: 37547789 PMCID: PMC10403709 DOI: 10.1016/j.ijppaw.2023.07.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 07/25/2023] [Accepted: 07/25/2023] [Indexed: 08/08/2023]
Abstract
The mussel Mytilus edulis, a host to various trematode species, experiences performance decrements due to these infections. Yet, the impact magnitude and potential interactions with environmental stressors remain largely unexplored. This study scrutinizes the effect of Renicola roscovita infections on mussel filtration and respiration. We first assessed performance in both uninfected and lab-infected mussels at a mild temperature (16 °C), following an acute heat ramp to 30.5 °C and subsequent cooling. The experiment revealed neither a significant direct impact of the infection on the mussels' performance, nor any significant interplay between the infection and temperature variations. To account for possible infection effects obscured by low sample sizes or mussel size disparities, we conducted a reassessment at 16 °C using both small and large mussels. Infection notably hampered filtration in large mussels, with a marginal impact on smaller ones. A positive correlation was found between infection intensity and mussel filtration capacity, though the infection had no discernible impact on respiration. Our consistent finding of an 11-12 % infection effect size across all experiments indicates a slight reduction in mussel filtration due to trematode infections. While the exacerbating effect of transient heat stress on the infection's impact on filtration was not statistically significant, future investigations should explore potential interactions with prolonged heat stress. Our findings underscore the nuanced ways in which parasitic infections can influence marine bivalve physiology, emphasizing the need for more comprehensive studies that incorporate environmental stressors, such as heat stress, to fully elucidate the impact of parasitism on marine ecosystem health and resilience.
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Affiliation(s)
- Maral Khosravi
- Department of Marine Ecology, GEOMAR Helmholtz Centre for Ocean Research Kiel, Düsternbrooker Weg 20, 24105, Kiel, Germany
| | - David W. Thieltges
- Department of Coastal Systems, NIOZ Royal Netherlands Institute for Sea Research, P.O. Box 59, 1790, A.B. Den Burg Texel, the Netherlands
| | - Dakeishla M. Díaz-Morales
- Department of Aquatic Ecology and Centre for Water and Environmental Research, University of Duisburg-Essen, Universitaetstr. 5, 45141, Essen, Germany
| | - Claudia Bommarito
- Department of Marine Ecology, GEOMAR Helmholtz Centre for Ocean Research Kiel, Düsternbrooker Weg 20, 24105, Kiel, Germany
| | - Jahangir Vajedsamiei
- Department of Marine Ecology, GEOMAR Helmholtz Centre for Ocean Research Kiel, Düsternbrooker Weg 20, 24105, Kiel, Germany
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Zhang L, Sha Z, Cheng J. Time-Course and Tissue-Specific Molecular Responses to Acute Thermal Stress in Japanese Mantis Shrimp Oratosquilla oratoria. Int J Mol Sci 2023; 24:11936. [PMID: 37569312 PMCID: PMC10419158 DOI: 10.3390/ijms241511936] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 07/14/2023] [Accepted: 07/19/2023] [Indexed: 08/13/2023] Open
Abstract
Current understanding of adaptability to high temperatures is increasingly important as extreme weather events that can trigger immediate physiological stress in organisms have occurred more frequently. Here, we tracked transcriptomic responses of gills, hepatopancreas, and muscle to acute thermal exposure at 30 °C for 0.5, 6, and 12 h in an economically important crustacean, Oratosquilla oratoria, to gain a preliminary understanding of the tissue-specific and dynamic physiological regulation process under acute heat stress. The unique physiological responses of muscle, hepatopancreas, and gills to acute thermal stress were associated with protein degradation, lipid transport, and energy metabolism in O. oratoria, respectively. Functional enrichment analysis of differentially expressed transcripts and heat-responsive gene clusters revealed a biphasic protective responsiveness of O. oratoria developed from the early responses of signal transduction, immunity, and cytoskeleton reorganization to the responses dominated by protein turnover and energy metabolism at the mid-late stages under acute heat stress. Noteworthy, trend analysis revealed a consistently upregulated expression pattern of high molecular weight heat shock protein (HSP) family members (HSP60, HSP70, and HSP90) during the entire thermal exposure process, highlighting their importance for maintaining heat resistance in O. oratoria. Documenting the whole process of transcriptional responses at fine temporal resolution will contribute to a far-reaching comprehension of plastic responses to acute heat stress in crustaceans, which is critical in the context of a changing climate.
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Affiliation(s)
- Liwen Zhang
- Laboratory of Marine Organism Taxonomy and Phylogeny, Qingdao Key Laboratory of Marine Biodiversity and Conservation, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
- Shandong Province Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhongli Sha
- Laboratory of Marine Organism Taxonomy and Phylogeny, Qingdao Key Laboratory of Marine Biodiversity and Conservation, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
- Shandong Province Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiao Cheng
- Laboratory of Marine Organism Taxonomy and Phylogeny, Qingdao Key Laboratory of Marine Biodiversity and Conservation, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
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14
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Li S, Chen H, Liu C, Sokolova IM, Chen Y, Deng F, Xie Z, Li L, Liu W, Fang JKH, Lin D, Hu M, Wang Y. Dietary exposure to nTiO 2 reduces byssus performance of mussels under ocean warming. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 881:163499. [PMID: 37062322 DOI: 10.1016/j.scitotenv.2023.163499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 04/10/2023] [Accepted: 04/10/2023] [Indexed: 06/01/2023]
Abstract
Nano‑titanium dioxide (nTiO2) is a widely used nanomaterial posing potential ecological risk for marine ecosystems that might be enhanced by elevated temperatures such as expected during climate change. nTiO2 may affect benthic filter feeders like mussels through waterborne exposures and via food chain due to the adsorption on/in algae. Mussel byssus are proteinaceous fibers secreted by byssal glands of the mussels for attachment. Byssus production and mechanical properties are sensitive to environmental stressors but the combined effects of warming and nTiO2 on byssus performance of mussels are unclear hampering our understanding of the predation and dislodgement risk of mussels under the multiple stressor scenarios. We explored the effects of a short-term (14-day) single and combined exposures to warming (28 °C) and 100 μg L-1 nTiO2 (including food co-exposure) on the byssus performance of the thick shell mussel Mytilus coruscus. The mechanical strength (measured as the breaking force) of the byssal threads was impaired by warming and nTiO2 (including food co-exposure), but the number and length of the byssal threads were increased. The mRNA expression levels of mussel foot proteins (mfp-3, mfp-5) and pre-collagens (preCOL-D, preCOL-P, preCOL-NG) were up-regulated to varying degrees, with the strongest effects induced by warming. This indicates that the physiological and molecular mechanisms of byssus secretion are plastic. However, downregulation of the mRNA expression of preCOL-D and preCOL-P under the combined warming and nTiO2 exposures indicate the limits of these plasticity mechanisms and suggest that the attachment ability and survival of the mussels may be impaired if the pollution or temperature conditions further deteriorate.
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Affiliation(s)
- Saishuai Li
- International Research Center for Marine Biosciences, Shanghai Ocean University, Ministry of Science and Technology, Shanghai, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China
| | - Hui Chen
- Shanghai Engineering Research Center of Hadal Science and Technology, College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China
| | - Chunhua Liu
- International Research Center for Marine Biosciences, Shanghai Ocean University, Ministry of Science and Technology, Shanghai, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China
| | - Inna M Sokolova
- Department of Marine Biology, Institute for Biological Sciences, University of Rostock, Rostock, Germany
| | - Yuchuan Chen
- International Research Center for Marine Biosciences, Shanghai Ocean University, Ministry of Science and Technology, Shanghai, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China
| | - Fujing Deng
- International Research Center for Marine Biosciences, Shanghai Ocean University, Ministry of Science and Technology, Shanghai, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China
| | - Zhe Xie
- International Research Center for Marine Biosciences, Shanghai Ocean University, Ministry of Science and Technology, Shanghai, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China
| | - Li'ang Li
- International Research Center for Marine Biosciences, Shanghai Ocean University, Ministry of Science and Technology, Shanghai, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China
| | - Wei Liu
- Department F.-A. Forel for Environmental and Aquatic Sciences, Faculty of Sciences, University of Geneva, Geneva, Switzerland
| | - James Kar-Hei Fang
- Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, China
| | - Daohui Lin
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
| | - Menghong Hu
- International Research Center for Marine Biosciences, Shanghai Ocean University, Ministry of Science and Technology, Shanghai, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China
| | - Youji Wang
- International Research Center for Marine Biosciences, Shanghai Ocean University, Ministry of Science and Technology, Shanghai, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China.
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15
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Zhao Y, Chen M, Chung TH, Chan LL, Qiu JW. The 2022 summer marine heatwaves and coral bleaching in China's Greater Bay Area. MARINE ENVIRONMENTAL RESEARCH 2023:106044. [PMID: 37321888 DOI: 10.1016/j.marenvres.2023.106044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 05/24/2023] [Accepted: 06/02/2023] [Indexed: 06/17/2023]
Abstract
From July to August 2022, scleractinian coral communities in China's Greater Bay Area (GBA) in the northern South China Sea (nSCS) experienced an unprecedented bleaching event, despite the fact that coral communities in this area are often considered coral thermal refugia due to their high latitude distribution. Field surveys of six sites covering three main coral distribution areas of the GBA revealed that coral bleaching occurred at all sites. Bleaching was more severe in shallow water (1-3 m) than in deep water (4-6 m), as indicated by both percent bleached cover (51.80 ± 10.04% vs. 7.09 ± 7.37%) and bleached colonies (45.86 ± 11.22% vs. 6.58 ± 6.53%). Coral genera Acropora, Favites, Montipora, Platygyra, Pocillopora, and Porites showed high susceptibility to bleaching, and Acropora and Pocillopora suffered high post-bleaching mortality. In the three areas surveyed, analysis of oceanographic data detected marine heatwaves (MHWs) during the summer, with mean intensities between 1.62 and 1.97 °C and durations between 5 and 22 days. These MHWs were primarily driven by increased shortwave radiation due to strong western Pacific Subtropical High (WPSH), combined with reduced mixing between the surface and deep upwelling waters due to reduced wind speed. Comparing with histological oceanographic data showed that the 2022 MHWs were unprecedented, and there was a significant increase in the frequency, intensity, and total days of MHWs during 1982-2022. Furthermore, the heterogeneous distribution of summer MHW characteristics indicates that the coastal upwelling may modulate the spatial distribution of summer MHWs in nSCS through its cooling effect. Overall, our study indicates that MHWs may have affected the structure of the subtropical coral communities in the nSCS, and impaired their potential as thermal refugia.
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Affiliation(s)
- Yu Zhao
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, PR China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, 511458, PR China
| | - Mingru Chen
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, PR China; Xiamen Key Laboratory of Urban Sea Ecological Conservation and Restoration (USER), Xiamen University, Xiamen, 361102, PR China.
| | - Tzu Hao Chung
- State Key Laboratory of Marine Pollution and Department of Biomedical Sciences, City University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Leo Lai Chan
- State Key Laboratory of Marine Pollution and Department of Biomedical Sciences, City University of Hong Kong, Hong Kong Special Administrative Region, China; Shenzhen Key Laboratory for the Sustainable Use of Marine Biodiversity, Research Centre for the Oceans and Human Health, City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, PR China
| | - Jian-Wen Qiu
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, 511458, PR China; Department of Biology, Hong Kong Baptist University, Hong Kong Special Administrative Region, China.
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Bass AV, Smith KE, Smale DA. Marine heatwaves and decreased light availability interact to erode the ecophysiological performance of habitat-forming kelp species. JOURNAL OF PHYCOLOGY 2023; 59:481-495. [PMID: 36964952 DOI: 10.1111/jpy.13332] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 01/20/2023] [Accepted: 03/12/2023] [Indexed: 06/15/2023]
Abstract
Coastal marine ecosystems are threatened by a range of anthropogenic stressors, operating at global, local, and temporal scales. We investigated the impact of marine heatwaves (MHWs) combined with decreased light availability over two seasons on the ecophysiological responses of three kelp species (Laminaria digitata, L. hyperborea, and L. ochroleuca). These species function as important habitat-forming foundation organisms in the northeast Atlantic and have distinct but overlapping latitudinal distributions and thermal niches. Under low-light conditions, summertime MHWs induced significant declines in biomass, blade surface area, and Fv/Fm values (a measure of photosynthetic efficiency) in the cool-water kelps L. digitata and L. hyperborea, albeit to varying degrees. Under high-light conditions, all species were largely resistant to simulated MHW activity. In springtime, MHWs had minimal impacts and in some cases promoted kelp performance, while reduced light availability resulted in lower growth rates. While some species were negatively affected by summer MHWs under low-light conditions (particularly L. digitata), they were generally resilient to MHWs under high-light conditions. As such, maintaining good environmental quality and water clarity may increase resilience of populations to summertime MHWs. Our study informs predictions of how habitat-forming foundation kelp species will be affected by interacting, concurrent stressors, typical of compound events that are intensifying under anthropogenic climate change.
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Affiliation(s)
- Alissa V Bass
- Marine Biological Association of the United Kingdom, The Laboratory, Citadel Hill, Plymouth, UK
| | - Kathryn E Smith
- Marine Biological Association of the United Kingdom, The Laboratory, Citadel Hill, Plymouth, UK
| | - Dan A Smale
- Marine Biological Association of the United Kingdom, The Laboratory, Citadel Hill, Plymouth, UK
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17
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Varela R, de Castro M, Dias JM, Gómez-Gesteira M. Coastal warming under climate change: Global, faster and heterogeneous. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 886:164029. [PMID: 37169187 DOI: 10.1016/j.scitotenv.2023.164029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 05/04/2023] [Accepted: 05/05/2023] [Indexed: 05/13/2023]
Abstract
The assessment of expected changes in coastal sea surface temperature (SST) on a global scale is becoming increasingly important due to the growing pressure on coastal ecosystems caused by climate change. To achieve this objective, 17 Global Climate Models from CMIP6 were used, with data from historical and hist-1950 experiments spanning 1982-2050. This analysis highlights significant warming of coastal areas worldwide, with higher and more variable rates of warming than observed in previous decades. All basins are projected to experience an increase in coastal SST near 1 °C by mid-century, with some regions exhibiting nearshore SST anomalies exceeding 2 °C for the period 2031-2050 relative to 1995-2014. Regarding the Eastern Upwelling Boundary Systems, only the Canary upwelling system and the southern part of the Humboldt upwelling system manage to show lower-than-average SST warming rates, maintaining, to a certain extent, their ability to buffer global warming.
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Affiliation(s)
- R Varela
- EphysLab - Environmental Physics Laboratory, CIM-UVIGO, Universidade de Vigo, Edificio Campus da Auga, 32004 Ourense, Spain; CESAM - Centre for Environmental and Marine Studies, Department of Physics, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - M de Castro
- EphysLab - Environmental Physics Laboratory, CIM-UVIGO, Universidade de Vigo, Edificio Campus da Auga, 32004 Ourense, Spain; CESAM - Centre for Environmental and Marine Studies, Department of Physics, University of Aveiro, 3810-193 Aveiro, Portugal
| | - J M Dias
- CESAM - Centre for Environmental and Marine Studies, Department of Physics, University of Aveiro, 3810-193 Aveiro, Portugal
| | - M Gómez-Gesteira
- EphysLab - Environmental Physics Laboratory, CIM-UVIGO, Universidade de Vigo, Edificio Campus da Auga, 32004 Ourense, Spain; CESAM - Centre for Environmental and Marine Studies, Department of Physics, University of Aveiro, 3810-193 Aveiro, Portugal
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18
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Li M, Young JN. Temperature sensitivity of carbon concentrating mechanisms in the diatom Phaeodactylum tricornutum. PHOTOSYNTHESIS RESEARCH 2023; 156:205-215. [PMID: 36881356 PMCID: PMC10154264 DOI: 10.1007/s11120-023-01004-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 02/10/2023] [Indexed: 05/03/2023]
Abstract
Marine diatoms are key primary producers across diverse habitats in the global ocean. Diatoms rely on a biophysical carbon concentrating mechanism (CCM) to supply high concentrations of CO2 around their carboxylating enzyme, RuBisCO. The necessity and energetic cost of the CCM are likely to be highly sensitive to temperature, as temperature impacts CO2 concentration, diffusivity, and the kinetics of CCM components. Here, we used membrane inlet mass spectrometry (MIMS) and modeling to capture temperature regulation of the CCM in the diatom Phaeodactylum tricornutum (Pt). We found that enhanced carbon fixation rates by Pt at elevated temperatures were accompanied by increased CCM activity capable of maintaining RuBisCO close to CO2 saturation but that the mechanism varied. At 10 and 18 °C, diffusion of CO2 into the cell, driven by Pt's 'chloroplast pump' was the major inorganic carbon source. However, at 18 °C, upregulation of the chloroplast pump enhanced (while retaining the proportion of) both diffusive CO2 and active HCO3- uptake into the cytosol, and significantly increased chloroplast HCO3- concentrations. In contrast, at 25 °C, compared to 18 °C, the chloroplast pump had only a slight increase in activity. While diffusive uptake of CO2 into the cell remained constant, active HCO3- uptake across the cell membrane increased resulting in Pt depending equally on both CO2 and HCO3- as inorganic carbon sources. Despite changes in the CCM, the overall rate of active carbon transport remained double that of carbon fixation across all temperatures tested. The implication of the energetic cost of the Pt CCM in response to increasing temperatures was discussed.
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Affiliation(s)
- Meng Li
- School of Oceanography, University of Washington, Seattle, WA, USA
| | - Jodi N Young
- School of Oceanography, University of Washington, Seattle, WA, USA.
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Zhao Q, Huang H, Costello MJ, Chu J. Climate change projections show shrinking deep-water ecosystems with implications for biodiversity and aquaculture in the Northwest Pacific. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 861:160505. [PMID: 36470391 DOI: 10.1016/j.scitotenv.2022.160505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 10/14/2022] [Accepted: 11/22/2022] [Indexed: 06/17/2023]
Abstract
The increased availability of environmental data with depth deriving from remote-sensing-based datasets permits more comprehensive modelling of the distribution of marine ecosystems in space and time. This research tests the potential of such objective modelling of marine ecosystems in four dimensions, spatial and temporal, to provide projections of how climate change may affect biodiversity, including aquaculture. This approach could be replicated for any regional seas. The Bohai Sea, Yellow Sea, and East China Sea (BYECS) are marginal seas in the Northwest Pacific bounded by China, Korea, and Japan. Despite providing important ecological and economic services, their ecological conditions and ecosystems distribution have not yet been systematically mapped. This analysis used 13 marine environmental variables, measured on a three-dimensional and monthly basis during 1993-2019, to classify and map the BYECS region by k-means clustering using cosine similarity as distance function. There were 13 distinct areas identified that fit the definition of "ecosystems" that is, enduring regions demarcated by environmental characteristics. Of these 13 ecosystems, the Yellow Sea Cold Water (YSCW) Ecosystem is significant in relation to seasonal species composition and the newly developing deep-sea salmon caging aquaculture in the region. Projections of the potential size of this water mass under various climate-change scenarios based on analysis using the Non-Parametric Probabilistic Ecological Niche (NPPEN) model show that its volume may decrease 31 %-66 % in the future. Such a decrease would have impacts on the seasonal species' abundances in the BYECS marginal sea region and threaten the deep-sea cold-water salmon farming.
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Affiliation(s)
- Qianshuo Zhao
- College of Marine Life Science, Ocean University of China, Shandong, Qingdao 266003, China.
| | - Huimin Huang
- College of Marine Life Science, Ocean University of China, Shandong, Qingdao 266003, China
| | - Mark John Costello
- College of Marine Life Science, Ocean University of China, Shandong, Qingdao 266003, China; Faculty of Biosciences and Aquaculture, Nord University, Bobo 8049, Norway
| | - Jiansong Chu
- College of Marine Life Science, Ocean University of China, Shandong, Qingdao 266003, China
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20
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Pastor F, Khodayar S. Marine heat waves: Characterizing a major climate impact in the Mediterranean. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 861:160621. [PMID: 36462657 DOI: 10.1016/j.scitotenv.2022.160621] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 11/11/2022] [Accepted: 11/27/2022] [Indexed: 06/17/2023]
Abstract
Marine heat waves (MHW), considered as persistent and spatially extensive sea surface temperature (SST) anomalies, have emerged as one of the global change-induced high impact events on the oceans. The study of MHWs received significant progress in recent years, although many unknowns remain. One of the most notable weaknesses is related to the absence of a universally established definition that would allow better intercomparison of results. It is our aim to contribute to this debate by considering the spatial extent to define a MHW. By applying this hypothesis to a relatively small, but complex, basin such as the Mediterranean, MHWs have been characterized and long-term trends assessed from SST satellite data analysis. Our results show that the inclusion of a minimum area threshold, 5 % of the area basin, greatly reduces the population of MHW events by not considering local SST anomalies that do not constitute a MHW event. A trend to more frequent, intense, and longer MHWs is found in the 1982-2021 period in the Mediterranean. In the spatial characterization and long-term trend analysis, regional differences were apparent. Results evidenced variations in MHWs characteristics and trends across the different sub-basins evidencing the fact that, even in a relatively small basin such as the Mediterranean, significant regional differences make it necessary to include a spatial perspective in the studies, beyond purely local analysis at each observation point in a large basin or even in the global ocean. Regarding the characterization of MHWs and trend analysis in the Mediterranean basin, a growing trend has been found in terms of frequency, duration, and intensity that accelerated since 2000 and especially in the last decade, pointing not just to a steady intensification and higher frequency of MHWs but to the emergence of a new set of more intense, long-lasting and spatially extensive MHWs in the recent years.
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Affiliation(s)
- F Pastor
- Mediterranean Centre for Environmental Studies (CEAM), Charles R. Darwin, 14, 46980 Paterna, Valencia, Spain.
| | - S Khodayar
- Mediterranean Centre for Environmental Studies (CEAM), Charles R. Darwin, 14, 46980 Paterna, Valencia, Spain.
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21
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Almagro-Moreno S, Martinez-Urtaza J, Pukatzki S. Vibrio Infections and the Twenty-First Century. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2023; 1404:1-16. [PMID: 36792868 DOI: 10.1007/978-3-031-22997-8_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
The Vibrionaceae is a highly diverse family of aquatic bacteria. Some members of this ubiquitous group can cause a variety of diseases in humans ranging from cholera caused by Vibrio cholerae, severe septicemia caused by Vibrio vulnificus, to acute gastroenteritis by Vibrio parahaemolyticus. Planet Earth is experiencing unprecedented changes of planetary scale associated with climate change. These environmental perturbations paired with overpopulation and pollution are increasing the distribution of pathogenic Vibrios and exacerbating the risk of causing infections. In this chapter, we discuss various aspects of Vibrio infections within the context of the twenty-first century with a major emphasis on the aforementioned pathogenic species. Overall, we believe that the twenty-first century is posed to be both one full of challenges due to the rise of these pathogens, and also a catalyst for innovative and groundbreaking discoveries.
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Affiliation(s)
- Salvador Almagro-Moreno
- Burnett School of Biomedical Sciences, University of Central Florida, Orlando, FL, USA. .,National Center for Integrated Coastal Research, University of Central Florida, Orlando, FL, USA.
| | - Jaime Martinez-Urtaza
- Department de Genetica I de Microbiologia, Facultat de Biociencies, Universitat Autonoma de Barcelona, Barcelona, Spain
| | - Stefan Pukatzki
- Department of Biology, The City College of New York, New York, NY, USA
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22
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Song WH, Li JJ. The effects of intraspecific variation on forecasts of species range shifts under climate change. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 857:159513. [PMID: 36257416 DOI: 10.1016/j.scitotenv.2022.159513] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 10/12/2022] [Accepted: 10/13/2022] [Indexed: 06/16/2023]
Abstract
As global climate change is altering the distribution range of macroalgae across the globe, it is critical to assess its impact on species range shifts to inform the biodiversity conservation of macroalgae. Latitude/environmental gradients could cause intraspecific variability, which may result in distinct responses to climate change. It remains unclear whether geographical variation occurs in the response of species' populations to climate change. We tested this assumption using the brown alga Sargassum thunbergii, a habitat-forming macroalgae encompassing multiple divergent lineages along the Northwest Pacific. Previous studies revealed a distinct lineage of S. thunbergii in rear-edge populations. Given the phylogeographic structure and temperature gradients, we divided these populations into the southern and northern groups. We assessed the physiological responses of the two groups to temperature changes and estimated their niche differences using n-dimensional hypervolumes. A higher photosynthetic rate and antioxidative abilities were detected in the southern group of S. thunbergii than in the northern group. In addition, significant niche differentiation was detected between the two groups, suggesting the possibility for local adaptation. Given these results, we inferred that the southern group (rear-edge populations) may be more resilient to climate change. To examine climate-driven range shifts of S. thunbergii, we constructed species- and lineage-level species distribution models (SDMs). Predictions of both levels showed considerable distribution contracts along the Chinese coasts in the future. For the southern group, the lineage-level model predicted less habitat loss than the species-level model. Our results highlight the importance of considering intraspecific variation in climate change vulnerability assessments for coastal species.
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Affiliation(s)
- Wang-Hui Song
- Jiangsu Province Engineering Research Center for Marine Bio-resources Sustainable Utilization, College of Oceanography, Hohai University, Nanjing 210024, China
| | - Jing-Jing Li
- Jiangsu Province Engineering Research Center for Marine Bio-resources Sustainable Utilization, College of Oceanography, Hohai University, Nanjing 210024, China.
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23
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Pathogens transported by plastic debris: does this vector pose a risk to aquatic organisms? Emerg Top Life Sci 2022; 6:349-358. [PMID: 36205551 DOI: 10.1042/etls20220022] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 09/14/2022] [Accepted: 09/16/2022] [Indexed: 12/30/2022]
Abstract
Microplastics are small (<5 mm) plastic particles of varying shapes and polymer types that are now widespread global contaminants of marine and freshwater ecosystems. Various estimates suggest that several trillions of microplastic particles are present in our global oceanic system, and that these are readily ingested by a wide range of marine and freshwater species across feeding modes and ecological niches. Here, we present some of the key and pressing issues associated with these globally important contaminants from a microbiological perspective. We discuss the potential mechanisms of pathogen attachment to plastic surfaces. We then describe the ability of pathogens (both human and animal) to form biofilms on microplastics, as well as dispersal of these bacteria, which might lead to their uptake into aquatic species ingesting microplastic particles. Finally, we discuss the role of a changing oceanic system on the potential of microplastic-associated pathogens to cause various disease outcomes using numerous case studies. We set out some key and imperative research questions regarding this globally important issue and present a methodological framework to study how and why plastic-associated pathogens should be addressed.
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24
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Leuchtenberger SG, Daleo M, Gullickson P, Delgado A, Lo C, Nishizaki MT. The effects of temperature and pH on the reproductive ecology of sand dollars and sea urchins: Impacts on sperm swimming and fertilization. PLoS One 2022; 17:e0276134. [PMID: 36454769 PMCID: PMC9714736 DOI: 10.1371/journal.pone.0276134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 09/29/2022] [Indexed: 12/02/2022] Open
Abstract
In an era of climate change, impacts on the marine environment include warming and ocean acidification. These effects can be amplified in shallow coastal regions where conditions often fluctuate widely. This type of environmental variation is potentially important for many nearshore species that are broadcast spawners, releasing eggs and sperm into the water column for fertilization. We conducted two experiments to investigate: 1) the impact of water temperature on sperm swimming characteristics and fertilization rate in sand dollars (Dendraster excentricus; temperatures 8-38°C) and sea urchins (Mesocentrotus franciscanus; temperatures 8-28°C) and; 2) the combined effects of multiple stressors (water temperature and pH) on these traits in sand dollars. We quantify thermal performance curves showing that sand dollar fertilization rates, sperm swimming velocities, and sperm motility display remarkably wide thermal breadths relative to red urchins, perhaps reflecting the wider range of water temperatures experienced by sand dollars at our field sites. For sand dollars, both temperature (8, 16, 24°C) and pH (7.1, 7.5, 7.9) affected fertilization but only temperature influenced sperm swimming velocity and motility. Although sperm velocities and fertilization were positively correlated, our fertilization kinetics model dramatically overestimated measured rates and this discrepancy was most pronounced under extreme temperature and pH conditions. Our results suggest that environmental stressors like temperature and pH likely impair aspects of the reproductive process beyond simple sperm swimming behavior.
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Affiliation(s)
- Sara Grace Leuchtenberger
- Biology Department, Carleton College, Northfield, MN, United States of America
- Friday Harbor Laboratories, Friday Harbor, WA, United States of America
| | - Maris Daleo
- Biology Department, Carleton College, Northfield, MN, United States of America
- Friday Harbor Laboratories, Friday Harbor, WA, United States of America
| | - Peter Gullickson
- Biology Department, Carleton College, Northfield, MN, United States of America
| | - Andi Delgado
- Biology Department, Carleton College, Northfield, MN, United States of America
- Friday Harbor Laboratories, Friday Harbor, WA, United States of America
| | - Carly Lo
- Biology Department, Carleton College, Northfield, MN, United States of America
| | - Michael T. Nishizaki
- Biology Department, Carleton College, Northfield, MN, United States of America
- Friday Harbor Laboratories, Friday Harbor, WA, United States of America
- * E-mail:
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25
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Rindi L, He J, Benedetti‐Cecchi L. Spatial correlation reverses the compound effect of multiple stressors on rocky shore biofilm. Ecol Evol 2022; 12:e9418. [PMID: 36311394 PMCID: PMC9608791 DOI: 10.1002/ece3.9418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 08/11/2022] [Accepted: 09/19/2022] [Indexed: 12/01/2022] Open
Abstract
Understanding how multifactorial fluctuating environments affect species and communities remains one of the major challenges in ecology. The spatial configuration of the environment is known to generate complex patterns of correlation among multiple stressors. However, to what extent the spatial correlation between simultaneously fluctuating variables affects ecological assemblages in real‐world conditions remains poorly understood. Here, we use field experiments and simulations to assess the influence of spatial correlation of two relevant climate variables – warming and sediment deposition following heavy precipitation – on the biomass and photosynthetic activity of rocky intertidal biofilm. First, we used a response‐surface design experiment to establish the relation between biofilm, warming, and sediment deposition in the field. Second, we used the response surface to generate predictions of biofilm performance under different scenarios of warming and sediment correlation. Finally, we tested the predicted outcomes by manipulating the degree of correlation between the two climate variables in a second field experiment. Simulations stemming from the experimentally derived response surface showed how the degree and direction (positive or negative) of spatial correlation between warming and sediment deposition ultimately determined the nonlinear response of biofilm biomass (but not photosynthetic activity) to fluctuating levels of the two climate variables. Experimental results corroborated these predictions, probing the buffering effect of negative spatial correlation against extreme levels of warming and sediment deposition. Together, these results indicate that consideration of nonlinear response functions and local‐scale patterns of correlation between climate drivers can improve our understanding and ability to predict ecological responses to multiple processes in heterogeneous environments.
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Affiliation(s)
- Luca Rindi
- Department of BiologyUniversity of Pisa, CoNISMaPisaItaly
| | - Jianyu He
- Department of BiologyUniversity of Pisa, CoNISMaPisaItaly
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26
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Addison JA, Kim J. Trans-Arctic vicariance in Strongylocentrotus sea urchins. PeerJ 2022; 10:e13930. [PMID: 36164602 PMCID: PMC9508886 DOI: 10.7717/peerj.13930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 07/31/2022] [Indexed: 01/19/2023] Open
Abstract
The sea urchins Strongylocentotus pallidus and S. droebachiensis first invaded the Atlantic Ocean from the Pacific following the opening of the Bering seaway in the late Miocene. While trans-Arctic dispersal during the Pleistocene is thought to have maintained species' integrity, a recent genomic analysis identified a reproductively isolated cryptic species within S. droebachiensis. Based on previous studies, the distribution of one of these lineages (S. droebachiensis W) includes the shallow water habitats of the northwest Atlantic and Pacific, while the other (S. droebachiensis E) is found throughout the shallow habitat in the northeast but is mostly restricted to deep habitats (>65 m) in the northwest Atlantic. However, since genetic variation within S. droebachiensis has been largely unstudied in the north Pacific and Arctic oceans, the biogeography of the cryptic species is not well known, and it is difficult to identify the mechanisms driving population subdivision and speciation. Here we use population genetic analyses to characterize the distribution of each species, and to test hypotheses about the role of vicariance in the evolution of systematic and genomic divergence within the genus. We collected individuals of all three Strongylocentrotus species (n = 365) from 10 previously unsampled locations in the northeast Pacific and north Atlantic (Labrador Sea and Norway), and generated mtDNA sequence data for a 418 bp fragment of cytochrome c oxidase subunit I (COI). To assess the biogeography of all three species, we combined our alignment with five previously published data sets (total n = 789) and used statistical parsimony and maximum likelihood to identify species and characterize their distribution within and among oceans. Patterns of haplotype sharing, pairwise F ST , and hierarchical analyses of molecular variance (AMOVA) identified trans-Arctic dispersal in S. pallidus and S. droebachiensis W, but other than 5 previously reported singletons we failed to detect additional mtDNA haplotypes of S. droebachiensis E in the north Pacific. Within the Atlantic, patterns of habitat segregation suggests that temperature may play a role in limiting the distribution of S. droebachiensis E, particularly throughout the warmer coastal waters along the coast of Nova Scotia. Our results are consistent with the cycles of trans-Arctic dispersal and vicariance in S. pallidus and S. droebachiensis W, but we suggest that the evolution of Atlantic populations of S. droebachiensis E has been driven by persistent trans-Arctic vicariance that may date to the initial invasion in the late Pliocene.
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Affiliation(s)
- Jason A. Addison
- Biology, University of New Brunswick, Fredericton, New Brunswick, Canada
| | - Jinhong Kim
- Biology, University of New Brunswick, Fredericton, New Brunswick, Canada,Department of Biochemistry and Molecular Biology, Dalhousie University, Halifax, Nova Scotia, Canada
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27
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Almeida SC, Neiva J, Sousa F, Martins N, Cox CJ, Melo-Ferreira J, Guiry MD, Serrão EA, Pearson GA. A low-latitude species pump: Peripheral isolation, parapatric speciation and mating-system evolution converge in a marine radiation. Mol Ecol 2022; 31:4797-4817. [PMID: 35869812 DOI: 10.1111/mec.16623] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 07/06/2022] [Accepted: 07/14/2022] [Indexed: 11/27/2022]
Abstract
Geologically recent radiations can shed light on speciation processes, but incomplete lineage sorting and introgressive gene flow render accurate evolutionary reconstruction and interpretation challenging. Independently evolving metapopulations of low dispersal taxa may provide an additional level of phylogeographic information, given sufficiently broad sampling and genome-wide sequencing. Evolution in the marine brown algal genus Fucus in the south-eastern North Atlantic was shaped by Quaternary climate-driven range shifts. Over this timescale, divergence and speciation occurred against a background of expansion-contraction cycles from multiple refugia, together with mating-system shifts from outcrossing (dioecy) to selfing hermaphroditism. We tested the hypothesis that peripheral isolation of range edge (dioecious) F. vesiculosus led to parapatric speciation and radiation of hermaphrodite lineages. Species tree methods using 876 single-copy nuclear genes and extensive geographic coverage produced conflicting topologies with respect to geographic clades of F. vesiculosus. All methods, however, revealed a new and early diverging hermaphrodite species, Fucus macroguiryi sp. nov. Both the multispecies coalescent and polymorphism-aware models (in contrast to concatenation) support sequential paraphyly in F. vesiculosus resulting from distinct evolutionary processes. Our results support (1) peripheral isolation of the southern F. vesiculosus clade prior to parapatric speciation and radiation of hermaphrodite lineages-a "low-latitude species pump". (2) Directional introgressive gene flow into F. vesiculosus around the present-day secondary contact zone (sympatric-allopatric boundary) between dioecious/hermaphrodite lineages as hermaphrodites expanded northwards, supported by concordance analysis and statistical tests of introgression. (3) Species boundaries in the extensive sympatric range are probably maintained by reproductive system (selfing in hermaphrodites) and reinforcement.
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Affiliation(s)
- Susana C Almeida
- Centre of Marine Sciences, Universidade do Algarve, Faro, Portugal
| | - João Neiva
- Centre of Marine Sciences, Universidade do Algarve, Faro, Portugal
| | - Filipe Sousa
- Centre of Marine Sciences, Universidade do Algarve, Faro, Portugal
- cE3c - Centre for Ecology, Evolution and Environmental Changes, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Neusa Martins
- Centre of Marine Sciences, Universidade do Algarve, Faro, Portugal
| | - Cymon J Cox
- Centre of Marine Sciences, Universidade do Algarve, Faro, Portugal
| | - José Melo-Ferreira
- CIBIO-InBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Universidade do Porto, Campus de Vairão, R. Padre Armando Quintas, Vairão, Portugal
- Departamento de Biologia, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre s/n, Porto, Portugal
- BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Campus de Vairão, Vairão, Portugal
| | - Michael D Guiry
- AlgaeBase, Ryan Institute, National University of Ireland, Galway, Ireland
| | - Ester A Serrão
- Centre of Marine Sciences, Universidade do Algarve, Faro, Portugal
| | - Gareth A Pearson
- Centre of Marine Sciences, Universidade do Algarve, Faro, Portugal
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28
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Wang J, Cheng ZY, Dong YW. Demographic, physiological, and genetic factors linked to the poleward range expansion of the snail Nerita yoldii along the shoreline of China. Mol Ecol 2022; 31:4510-4526. [PMID: 35822322 DOI: 10.1111/mec.16610] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 05/23/2022] [Accepted: 07/04/2022] [Indexed: 12/01/2022]
Abstract
Species range shift is one of the most significant consequences of climate change in the Anthropocene. A comprehensive study, including demographic, physiological, and genetic factors linked to poleward range expansion, is crucial for understanding how the expanding population occupies the new habitat. In the present study, we investigated the demographic, physiological, and genetic features of the intertidal gastropod Nerita yoldii, which has extended its northern limit by ~200 km over the former biogeographic break of the Yangtze River Estuary during recent decades. The neutral SNPs data showed that the new marginal populations formed a distinct cluster established by a few founders. Demographic modelling analysis revealed that the new marginal populations experienced a strong genetic bottleneck followed by recent demographic expansion. Successful expansion that overcame the founder effect might be attributed to its high capacity of rapid population growth and multiple introductions. According to the non-neutral SNPs under diversifying selection, there were high levels of heterozygosity in the new marginal populations, which might be beneficial for adapting to the novel thermal conditions. The common garden experiment showed that the new marginal populations have evolved divergent transcriptomic and physiological responses to heat stress, allowing them to occupy and survive in the novel environment. Lower transcriptional plasticity was observed in the new marginal populations. These results suggest a new biogeographic pattern of N. yoldii has formed with the occurrence of demographic, physiologic, and genetic changes, and emphasize the roles of adaptation of marginal populations during range expansion.
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Affiliation(s)
- Jie Wang
- The Key Laboratory of Mariculture, Ministry of Education, Fisheries College, Ocean University of China, Qingdao, PR China.,Function Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology, Qingdao, PR China
| | - Zhi-Yuan Cheng
- State Key Laboratory of Marine Environmental Science, College of Marine and Earth Sciences, Xiamen University, Xiamen, PR China
| | - Yun-Wei Dong
- The Key Laboratory of Mariculture, Ministry of Education, Fisheries College, Ocean University of China, Qingdao, PR China.,Function Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology, Qingdao, PR China
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29
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Diez G, Chust G, Andonegi E, Santurtún M, Abaroa C, Bilbao E, Maceira A, Mendibil I. Analysis of potential drivers of spatial and temporal changes in anisakid larvae infection levels in European hake, Merluccius merluccius (L.), from the North-East Atlantic fishing grounds. Parasitol Res 2022; 121:1903-1920. [PMID: 35462582 DOI: 10.1007/s00436-022-07446-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 01/24/2022] [Indexed: 10/18/2022]
Abstract
We analysed the spatial and temporal variability of Anisakis larvae infection in hake (Merluccius merluccius) from the North-East Atlantic from 1998 to 2020 and the potential drivers (i.e., environmental and host abundance) of such variation. The results showed that hake from separate sea areas in the North Atlantic have marked differences in temporal abundance levels. Hake larger than 60 cm were all parasitized in all ICES (International Council for the Exploration of the Sea) subareas 6, 7, and 8. The belly flaps were the most parasitized parts of the flesh, accounting for 92% of the total. Individuals of Anisakis simplex, Anisakis pegreffii, Anisakis spp. and a hybrid of Anisakis simplex × pegreffii were genetically identified, and Anisakis simplex as the most abundant (88-100%). An ecological niche model of Anisakis occurrence in fishes in the NE Atlantic was built to define the thermal optimum and environmental ranges for salinity, depth, chlorophyll concentration, and diffuse attenuation. The temporal variability of anisakid infection in fishes in the last two decades indicated an increase in the NE Atlantic at an annual rate of 31.7 nematodes per total number of specimens examined per year. This rise in infection levels could be triggered by the increase in intermediate host fish stocks, especially hake in the area.
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Affiliation(s)
- Guzmán Diez
- Marine Research, AZTI- Basque Research and Technology Alliance (BRTA), Txatxarramendi s/n, 48395, Sukarrieta-Bizkaia, Spain.
| | - Guillem Chust
- Marine Research, AZTI- Basque Research and Technology Alliance (BRTA), Txatxarramendi s/n, 48395, Sukarrieta-Bizkaia, Spain
| | - Eider Andonegi
- Marine Research, AZTI- Basque Research and Technology Alliance (BRTA), Txatxarramendi s/n, 48395, Sukarrieta-Bizkaia, Spain
| | - Marina Santurtún
- Marine Research, AZTI- Basque Research and Technology Alliance (BRTA), Txatxarramendi s/n, 48395, Sukarrieta-Bizkaia, Spain
| | - Carmen Abaroa
- Marine Research, AZTI- Basque Research and Technology Alliance (BRTA), Txatxarramendi s/n, 48395, Sukarrieta-Bizkaia, Spain
| | - Elisabette Bilbao
- Marine Research, AZTI- Basque Research and Technology Alliance (BRTA), Txatxarramendi s/n, 48395, Sukarrieta-Bizkaia, Spain
| | - Arantza Maceira
- Marine Research, AZTI- Basque Research and Technology Alliance (BRTA), Txatxarramendi s/n, 48395, Sukarrieta-Bizkaia, Spain
| | - Iñaki Mendibil
- Marine Research, AZTI- Basque Research and Technology Alliance (BRTA), Txatxarramendi s/n, 48395, Sukarrieta-Bizkaia, Spain
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30
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Scott K, Tanabe LK, Miller JD, Berumen ML. Newly described nesting sites of the green sea turtle ( Chelonia mydas) and the hawksbill sea turtle ( Eretmochelys imbricata) in the central Red Sea. PeerJ 2022; 10:e13408. [PMID: 35795175 PMCID: PMC9252177 DOI: 10.7717/peerj.13408] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 04/19/2022] [Indexed: 01/14/2023] Open
Abstract
Background There is relatively little published information about sea turtle nesting distribution and seasonality in the Saudi Arabian Red Sea. Upcoming large-scale developments occurring along the Saudi Arabian Red Sea coast could negatively affect many sea turtle nesting beaches with potential impacts on the survival of local populations. Methods In 2019, two coastal beaches and three near-shore islands were surveyed for turtle nesting in the central Red Sea. We recorded all emergences, examined beach morphology, and collected sand samples to determine grain size, moisture content and colour. Results Sea turtle nesting was found at all surveyed sites, though emergence counts were often low. The limited occurrence of nesting at several previously undocumented sites suggests that nesting activity may be widespread, but sparsely distributed, in the central Red Sea region. In addition, nesting at novel sites appeared to favour the seaward side of islands, a pattern that was not observed in previously documented areas. The substrate of most surveyed sites was composed of calcium carbonate with Ras Baridi as the only exception; it was composed of dark quartz-rich sediment. This study highlights several important sea turtle rookeries while also demonstrating that low levels of nesting occur throughout the region, although inter-annual nesting patterns still need to be determined. Future developments should be steered away from key nesting areas and the seaward bias in marginal rookeries should be taken into account where possible.
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Affiliation(s)
- Kirsty Scott
- Red Sea Research Center, Division of Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology, Thuwal, Makkah, Kingdom of Saudi Arabia
| | - Lyndsey K. Tanabe
- Red Sea Research Center, Division of Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology, Thuwal, Makkah, Kingdom of Saudi Arabia
| | - Jeffrey D. Miller
- Biological Research & Education Consultants, Unaffiliated, Missoula, MT, United States of America
| | - Michael L. Berumen
- Red Sea Research Center, Division of Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology, Thuwal, Makkah, Kingdom of Saudi Arabia
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31
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Fusi M, Marasco R, Ramond JB, Barausse A, Baldanzi S. Editorial: Fluctuating Habitats: Ecological Relevance of Environmental Variability and Predictability on Species, Communities, and Ecosystems. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.907622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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32
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Xiao X, Powers LC, Liu J, Gonsior M, Zhang R, Zhang L, MacIntyre HL, Chen X, Hu C, Batt J, Shi Q, Xu D, Zhang Y, Jiao N. Biodegradation of Terrigenous Organic Matter in a Stratified Large-Volume Water Column: Implications of the Removal of Terrigenous Organic Matter in the Coastal Ocean. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:5234-5246. [PMID: 35357815 DOI: 10.1021/acs.est.1c08317] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Large amounts of terrigenous organic matter (TOM) are delivered to the ocean every year. However, removal processes of TOM in the ocean are still poorly constrained. Here, we report results from a 339-day dark incubation experiment with a unique system holding a vertically stratified freshwater-seawater column. The quality and quantity of dissolved organic matter (DOM), RNA-based size-fraction microbial communities, and environmental factors were high-frequency-monitored. Microbial processes impacted TOM composition, including an increased DOM photobleaching rate with incubation time. The mixed layer had changed the bacterial community structure, diversity, and higher oxygen consumption rate. A two-end member modeling analysis suggested that estimated nutrient concentrations and prokaryotic abundance were lower, and total dissolved organic carbon was higher than that of the measured values. These results imply that DOM biodegradation was stimulated during freshwater-seawater mixing. In the bottom layer, fluorescent DOM components increased with the incubation time and were significantly positively related to highly unsaturated, oxygenated, and presumably aromatic compound molecular formulas. These results suggest that surfaced-derived TOM sinking leads to increased DOM transformation and likely results in carbon storage in the bottom water. Overall, these results suggest that microbial transforming TOM plays more important biogeochemical roles in estuaries and coastal oceans than what we know before.
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Affiliation(s)
- Xilin Xiao
- College of the Environment and Ecology, Xiamen University, Xiamen361102, China
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Fujian Key Laboratory of Marine Carbon Sequestration, Xiamen University, Xiamen361102, China
- Joint Laboratory for Ocean Research and Education (LORE) of Dalhousie University, Canada, and Shandong University and Xiamen University, Xiamen361102, China
| | - Leanne C Powers
- Chesapeake Biological Laboratory, University of Maryland Center for Environmental Science, Solomons, Maryland20688, United States
| | - Jihua Liu
- Joint Laboratory for Ocean Research and Education (LORE) of Dalhousie University, Canada, and Shandong University and Xiamen University, Xiamen361102, China
- Institute of Marine Science and Technology, Shandong University, Qingdao266237, China
| | - Michael Gonsior
- Chesapeake Biological Laboratory, University of Maryland Center for Environmental Science, Solomons, Maryland20688, United States
| | - Rui Zhang
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Fujian Key Laboratory of Marine Carbon Sequestration, Xiamen University, Xiamen361102, China
- Joint Laboratory for Ocean Research and Education (LORE) of Dalhousie University, Canada, and Shandong University and Xiamen University, Xiamen361102, China
| | - Lianbao Zhang
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Fujian Key Laboratory of Marine Carbon Sequestration, Xiamen University, Xiamen361102, China
- Joint Laboratory for Ocean Research and Education (LORE) of Dalhousie University, Canada, and Shandong University and Xiamen University, Xiamen361102, China
| | - Hugh L MacIntyre
- Department of Oceanography, Dalhousie University, Halifax, Nova ScotiaB3H 4R2, Canada
| | - Xiaowei Chen
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Fujian Key Laboratory of Marine Carbon Sequestration, Xiamen University, Xiamen361102, China
- Joint Laboratory for Ocean Research and Education (LORE) of Dalhousie University, Canada, and Shandong University and Xiamen University, Xiamen361102, China
| | - Chen Hu
- College of the Environment and Ecology, Xiamen University, Xiamen361102, China
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Fujian Key Laboratory of Marine Carbon Sequestration, Xiamen University, Xiamen361102, China
- Joint Laboratory for Ocean Research and Education (LORE) of Dalhousie University, Canada, and Shandong University and Xiamen University, Xiamen361102, China
| | - John Batt
- Joint Laboratory for Ocean Research and Education (LORE) of Dalhousie University, Canada, and Shandong University and Xiamen University, Xiamen361102, China
- Department of Oceanography, Dalhousie University, Halifax, Nova ScotiaB3H 4R2, Canada
| | - Qiang Shi
- Joint Laboratory for Ocean Research and Education (LORE) of Dalhousie University, Canada, and Shandong University and Xiamen University, Xiamen361102, China
- Department of Oceanography, Dalhousie University, Halifax, Nova ScotiaB3H 4R2, Canada
| | - Dapeng Xu
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Fujian Key Laboratory of Marine Carbon Sequestration, Xiamen University, Xiamen361102, China
- Joint Laboratory for Ocean Research and Education (LORE) of Dalhousie University, Canada, and Shandong University and Xiamen University, Xiamen361102, China
| | - Yao Zhang
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Fujian Key Laboratory of Marine Carbon Sequestration, Xiamen University, Xiamen361102, China
- Joint Laboratory for Ocean Research and Education (LORE) of Dalhousie University, Canada, and Shandong University and Xiamen University, Xiamen361102, China
| | - Nianzhi Jiao
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Fujian Key Laboratory of Marine Carbon Sequestration, Xiamen University, Xiamen361102, China
- Joint Laboratory for Ocean Research and Education (LORE) of Dalhousie University, Canada, and Shandong University and Xiamen University, Xiamen361102, China
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Fifer JE, Yasuda N, Yamakita T, Bove CB, Davies SW. Genetic divergence and range expansion in a western North Pacific coral. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 813:152423. [PMID: 34942242 DOI: 10.1016/j.scitotenv.2021.152423] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 12/09/2021] [Accepted: 12/11/2021] [Indexed: 06/14/2023]
Abstract
Coral poleward range expansions have recently been observed in response to warming oceans. Range expansion can lead to reduced genetic diversity and increased frequency of deleterious mutations that were rare in core populations, potentially limiting the ability for adaptation and persistence in novel environments. Successful expansions that overcome these founder effects and colonize new habitat have been attributed to multiple introductions from different sources, hybridization with native populations, or rapid adaptive evolution. Here, we investigate population genomic patterns of the reef-building coral Acropora hyacinthus along a latitudinal cline that includes a well-established range expansion front in Japan using 2b-RAD sequencing. A total of 184 coral samples were collected across seven sites spanning from ~24°N to near its northern range front at ~33°N. We uncover the presence of three cryptic lineages of A. hyacinthus, which occupy discrete reefs within this region. Only one lineage is present along the expansion front and we find evidence for its historical occupation of marginal habitats. Within this lineage we also find evidence of bottleneck pressures associated with expansion events including higher clonality, increased linkage disequilibrium, and lower genetic diversity in range edge populations compared to core populations. Asymmetric migration between populations was also detected with lower migration from edge sites. Lastly, we describe genomic signatures of local adaptation potentially attributed to lower winter temperatures experienced at the more recently expanded northern populations. Together these data illuminate the genomic consequences of range expansion in a coral and highlight how adaptation to discrete environments along expansion fronts may facilitate further range expansion in this temperate coral lineage.
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Affiliation(s)
- James E Fifer
- Department of Biology, Boston University, Boston, MA 02215, USA.
| | - Nina Yasuda
- Department of Marine Biology and Environmental Sciences, Faculty of Agriculture, University of Miyazaki, 1-1 Gakuenkibanadainishi, Miyazaki 889-2192, Japan.
| | - Takehisa Yamakita
- Marine Biodiversity and Environmental Assessment Research Center, Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushimacho, Yokosuka, Kanagawa 237-0061, Japan
| | - Colleen B Bove
- Department of Biology, Boston University, Boston, MA 02215, USA
| | - Sarah W Davies
- Department of Biology, Boston University, Boston, MA 02215, USA
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Straub SC, Wernberg T, Marzinelli EM, Vergés A, Kelaher BP, Coleman MA. Persistence of seaweed forests in the anthropocene will depend on warming and marine heatwave profiles. JOURNAL OF PHYCOLOGY 2022; 58:22-35. [PMID: 34800039 DOI: 10.1111/jpy.13222] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 11/02/2021] [Accepted: 11/10/2021] [Indexed: 06/13/2023]
Abstract
Marine heatwaves (MHWs), discrete periods of extreme warm water temperatures superimposed onto persistent ocean warming, have increased in frequency and significantly disrupted marine ecosystems. While field observations on the ecological consequences of MHWs are growing, a mechanistic understanding of their direct effects is rare. We conducted an outdoor tank experiment testing how different thermal stressor profiles impacted the ecophysiological performance of three dominant forest-forming seaweeds. Four thermal scenarios were tested: contemporary summer temperature (22°C), low persistent warming (24°C), a discrete MHW (22-27°C), and temperature variability followed by a MHW (22-24°C, 22-27°C). The physiological performance of seaweeds was strongly related to thermal profile and varied among species, with the highest temperature not always having the strongest effect. MHWs were highly detrimental for the fucoid Phyllospora comosa, whereas the laminarian kelp Ecklonia radiata showed sensitivity to extended thermal stress and demonstrated a cumulative temperature threshold. The fucoid Sargassum linearifolium showed resilience, albeit with signs of decline with bleached and degraded fronds, under all conditions, with stronger decline under stable control and warming conditions. The varying responses of these three co-occurring forest-forming seaweeds under different temperature scenarios suggests that the impact of ocean warming on near shore ecosystems may be complex and will depend on the specific thermal profile of rising water temperatures relative to the vulnerability of different species.
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Affiliation(s)
- Sandra C Straub
- UWA Oceans Institute and School of Biological Sciences, University of Western Australia, Crawley, Australia
| | - Thomas Wernberg
- UWA Oceans Institute and School of Biological Sciences, University of Western Australia, Crawley, Australia
- Institute of Marine Research, Flødevigen Research Station, His, Norway
| | - Ezequiel M Marzinelli
- School of Life and Environmental Sciences, The University of Sydney, Sydney, Australia
- Singapore Centre for Environmental Life Sciences Engineering, Nanyang Technological University, Singapore
- Sydney Institute of Marine Science, Mosman, Australia
- Centre for Marine Science and Innovation, School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, Australia
| | - Adriana Vergés
- Sydney Institute of Marine Science, Mosman, Australia
- Centre for Marine Science and Innovation, School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, Australia
| | - Brendan P Kelaher
- National Marine Science Centre, Southern Cross University, Coffs Harbour, Australia
| | - Melinda A Coleman
- UWA Oceans Institute and School of Biological Sciences, University of Western Australia, Crawley, Australia
- National Marine Science Centre, Southern Cross University, Coffs Harbour, Australia
- Department of Primary Industries, NSW Fisheries, Coffs Harbour, Australia
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35
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Wu NC, Rubin AM, Seebacher F. Endocrine disruption from plastic pollution and warming interact to increase the energetic cost of growth in a fish. Proc Biol Sci 2022; 289:20212077. [PMID: 35078359 PMCID: PMC8790379 DOI: 10.1098/rspb.2021.2077] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Energetic cost of growth determines how much food-derived energy is needed to produce a given amount of new biomass and thereby influences energy transduction between trophic levels. Growth and development are regulated by hormones and are therefore sensitive to changes in temperature and environmental endocrine disruption. Here, we show that the endocrine disruptor bisphenol A (BPA) at an environmentally relevant concentration (10 µgl-1) decreased fish (Danio rerio) size at 30°C water temperature. Under the same conditions, it significantly increased metabolic rates and the energetic cost of growth across development. By contrast, BPA decreased the cost of growth at cooler temperatures (24°C). BPA-mediated changes in cost of growth were not associated with mitochondrial efficiency (P/O ratios (i.e. adenosine diphosphate (ADP) used/oxygen consumed) and respiratory control ratios) although BPA did increase mitochondrial proton leak. In females, BPA decreased age at maturity at 24°C but increased it at 30°C, and it decreased the gonadosomatic index suggesting reduced investment into reproduction. Our data reveal a potentially serious emerging problem: increasing water temperatures resulting from climate warming together with endocrine disruption from plastic pollution can impact animal growth efficiency, and hence the dynamics and resilience of animal populations and the services these provide.
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Affiliation(s)
- Nicholas C. Wu
- School of Life and Environmental Sciences A08, The University of Sydney, Sydney, NSW 2006, Australia
| | - Alexander M. Rubin
- School of Life and Environmental Sciences A08, The University of Sydney, Sydney, NSW 2006, Australia
| | - Frank Seebacher
- School of Life and Environmental Sciences A08, The University of Sydney, Sydney, NSW 2006, Australia
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36
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Weak Mesoscale Variability in the Optimum Interpolation Sea Surface Temperature (OISST)-AVHRR-Only Version 2 Data before 2007. REMOTE SENSING 2022. [DOI: 10.3390/rs14020409] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Mesoscale sea surface temperature (SST) variability triggers mesoscale air–sea interactions and is linked to ocean subsurface mesoscale dynamics. The National Oceanic and Atmospheric Administration (NOAA) daily Optimum Interpolation SST (OISST) products, based on various satellite and in situ SST data, are widely utilized in the investigation of multi-scale SST variabilities and reconstruction of subsurface and deep-ocean fields. The quality of OISST datasets is subjected to temporal inhomogeneity due to alterations in the merged data. Yet, whether this issue can significantly affect mesoscale SST variability is unknown. The analysis of this study detects an abrupt enhancement of mesoscale SST variability after 2007 in the OISST-AVHRR-only version 2 and version 2.1 datasets (hereafter OI.v2-AVHRR-only and OI.v2.1-AVHRR-only). The contrast is most stark in the subtropical western boundary current (WBC) regions, where the average mesoscale SST variance during 2007–2018 is twofold larger than that during 1993–2006. Further comparisons with other satellite SST datasets (TMI, AMSR-E, and WindSAT) suggest that the OISST-AVHRR-only datasets have severely underestimated mesoscale SST variability before 2007. An evaluation of related documents of the OISST data indicates that this bias is mainly caused by the change of satellite AVHRR instrument in 2007. There are no corresponding changes detected in the associated fields, such as the number and activity of mesoscale eddies or the background SST gradient in these regions, confirming that the underestimation of mesoscale SST variability before 2007 is an artifact. Another OISST product, OI.v2-AVHRR-AMSR, shows a similar abrupt enhancement of mesoscale SST variability in June 2002, when the AMSR-E instrument was incorporated. This issue leaves potential influences on scientific research that utilize the OISST datasets. The composite SST anomalies of mesoscale eddies based on the OI.v2-AVHRR-only data are underestimated by up to 37% before 2007 in the subtropical WBC regions. The underestimation of mesoscale variability also affects the total (full-scale) SST variability, particularly in winter. Other SST data products based on the OISST datasets were also influenced; we identify suspicious changes in J-OFURO3 and CFSR datasets; the reconstructed three-dimensional ocean products using OISST data as input may also be inevitably affected. This study reminds caution in the usage of the OISST and relevant data products in the investigation of mesoscale processes.
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37
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Moreira C, Stillman JH, Lima FP, Xavier R, Seabra R, Gomes F, Veríssimo A, Silva SM. Transcriptomic response of the intertidal limpet Patella vulgata to temperature extremes. J Therm Biol 2021; 101:103096. [PMID: 34879914 DOI: 10.1016/j.jtherbio.2021.103096] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 08/25/2021] [Accepted: 09/14/2021] [Indexed: 12/13/2022]
Abstract
Global warming is challenging wild species in land and water. In the intertidal zone, species are already living at their thermal limits, being vulnerable even to small increases in maximum habitat temperatures. Knowledge of the mechanisms by which many intertidal zone species cope with elevated temperatures is limited. We analysed the molecular thermal stress response of the limpet Patella vulgata under slight and frequent (one-day), and extreme and rare (three-day) warming events. Using RNA-seq to assess differential gene expression among treatments, differing molecular responses were obtained in the two treatments, with more changes in gene expression after the three-day event; with one-third of the differentially expressed transcripts being down-regulated. However, across treatments we observed shifts in gene expression for common aspects of the heat stress response including intra-cellular communication, protein chaperoning, proteolysis and cell cycle arrest. Of the 71,675 transcripts obtained, only 259 were differentially expressed after both heating events. From these, 218 defined the core group (i.e. genes induced by thermal stress with similar expression patterns irrespective of the magnitude of the warming event). The core group was composed of already well-studied genes in heat stress responses in intertidal organisms (e.g. heat shock proteins), but also genes from less explored metabolic pathways, e.g. the ubiquitin system, which were also fundamental regardless of the magnitude of the imposed warming. Moreover, we have also identified 41 signaling genes (i.e. a set of genes responding to both events and with expression patterns specific to the intensity of thermal stress), principally including genes involved in the maintenance of extracellular structure that have previously not been identified as part of the response to thermal stress in intertidal zone organisms. These signaling genes will be useful heat stress molecular biomarkers for monitoring heat stress in natural populations.
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Affiliation(s)
- Catarina Moreira
- Research Center in Biodiversity and Genetic Resources, In-BIO Associate Laboratory, Vairão, Portugal
| | - Jonathon H Stillman
- Estuary & Ocean Science Center and Department of Biology, San Francisco State University, And Department of Integrative Biology, University of California Berkeley, California, USA
| | - Fernando P Lima
- Research Center in Biodiversity and Genetic Resources, In-BIO Associate Laboratory, Vairão, Portugal
| | - Raquel Xavier
- Research Center in Biodiversity and Genetic Resources, In-BIO Associate Laboratory, Vairão, Portugal
| | - Rui Seabra
- Research Center in Biodiversity and Genetic Resources, In-BIO Associate Laboratory, Vairão, Portugal
| | - Filipa Gomes
- Research Center in Biodiversity and Genetic Resources, In-BIO Associate Laboratory, Vairão, Portugal
| | - Ana Veríssimo
- Research Center in Biodiversity and Genetic Resources, In-BIO Associate Laboratory, Vairão, Portugal
| | - Sofia Marques Silva
- Research Center in Biodiversity and Genetic Resources, In-BIO Associate Laboratory, Vairão, Portugal.
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38
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Dong YW, Liao ML, Han GD, Somero GN. An integrated, multi-level analysis of thermal effects on intertidal molluscs for understanding species distribution patterns. Biol Rev Camb Philos Soc 2021; 97:554-581. [PMID: 34713568 DOI: 10.1111/brv.12811] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 10/12/2021] [Accepted: 10/19/2021] [Indexed: 12/12/2022]
Abstract
Elucidating the physiological mechanisms that underlie thermal stress and discovering how species differ in capacities for phenotypic acclimatization and evolutionary adaptation to this stress is critical for understanding current latitudinal and vertical distribution patterns of species and for predicting their future state in a warming world. Such mechanistic analyses require careful choice of study systems (species and temperature-sensitive traits) and design of laboratory experiments that reflect the complexities of in situ conditions. Here, we critically review a wide range of studies of intertidal molluscs that provide mechanistic accounts of thermal effects across all levels of biological organization - behavioural, organismal, organ level, cellular, molecular, and genomic - and show how temperature-sensitive traits govern distribution patterns and capacities for coping with thermal stress. Comparisons of congeners from different thermal habitats are especially effective means for identifying adaptive variation. We employ these mechanistic analyses to illustrate how species differ in the severity of threats posed by rising temperature. Counterintuitively, we show that some of the most heat-tolerant species may be most threatened by increases in temperatures because of their small thermal safety margins and minimal abilities to acclimatize to higher temperatures. We discuss recent molecular biological and genomic studies that provide critical foundations for understanding the types of evolutionary changes in protein structure, RNA secondary structure, genome content, and gene expression capacities that underlie adaptation to temperature. Duplication of stress-related genes, as found in heat-tolerant molluscs, may provide enhanced capacity for coping with higher temperatures. We propose that the anatomical, behavioural, physiological, and genomic diversity found among intertidal molluscs, which commonly are of critical importance and high abundance in these ecosystems, makes this group of animals a highly appropriate study system for addressing questions about the mechanistic determinants of current and future distribution patterns of intertidal organisms.
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Affiliation(s)
- Yun-Wei Dong
- The Key Laboratory of Mariculture, Ministry of Education, Fisheries College, Ocean University of China, Qingdao, 266003, China.,Function Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China
| | - Ming-Ling Liao
- The Key Laboratory of Mariculture, Ministry of Education, Fisheries College, Ocean University of China, Qingdao, 266003, China
| | - Guo-Dong Han
- College of Life Science, Yantai University, Yantai, 264005, China
| | - George N Somero
- Department of Biology, Hopkins Marine Station, Stanford University, Pacific Grove, California, 93950, U.S.A
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Marine heatwaves in the Humboldt current system: from 5-day localized warming to year-long El Niños. Sci Rep 2021; 11:21172. [PMID: 34707126 PMCID: PMC8551336 DOI: 10.1038/s41598-021-00340-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Accepted: 10/11/2021] [Indexed: 11/12/2022] Open
Abstract
During the last 4 decades punctual occurrences of extreme ocean temperatures, known as marine heatwaves (MHWs), have been regularly disrupting the coastal ecosystem of the Peru-Chile eastern boundary upwelling system. In fact, this coastal system and biodiversity hot-spot is regularly impacted by El Niño events, whose variability has been related to the longest and most intense MHWs in the world ocean. However the intensively studied El Niños tend to overshadow the MHWs of shorter duration that are significantly more common in the region. Using sea surface temperature data from 1982 to 2019 we investigate the characteristics and evolution of MHWs, distinguishing events by duration. Results show that long duration MHWs (> 100 days) preferentially affect the coastal domain north of 15° S and have decreased in both occurrence and intensity in the last four decades. On the other hand, shorter events, which represent more than 90% of all the observed MHWs, are more common south of 15° S and show an increase in their thermal impact as well as on the number of affected days, particularly those spanning 30-100 days. We also show that long duration MHWs variability in the coastal domain is well correlated with the remote equatorial variability while the onset of short events (< 10 days) generally goes along with a relaxation of the local coastal wind.
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40
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Vajedsamiei J, Melzner F, Raatz M, Morón Lugo SC, Pansch C. Cyclic thermal fluctuations can be burden or relief for an ectotherm depending on fluctuations’ average and amplitude. Funct Ecol 2021. [DOI: 10.1111/1365-2435.13889] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jahangir Vajedsamiei
- Department of Marine Ecology GEOMAR Helmholtz Centre for Ocean Research Kiel Kiel Germany
| | - Frank Melzner
- Department of Marine Ecology GEOMAR Helmholtz Centre for Ocean Research Kiel Kiel Germany
| | - Michael Raatz
- Department for Evolutionary Theory Max‐Planck Institute for Evolutionary Biology Plön Germany
| | - Sonia C. Morón Lugo
- Departement des Sciences Fondamentales Universite du Quebec a Chicoutimi 555 Chicoutimi Quebec Canada
| | - Christian Pansch
- Department of Environmental & Marine Biology Åbo Akademi University Turku Finland
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41
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McLachlan RH, Dobson KL, Schmeltzer ER, Vega Thurber R, Grottoli AG. A review of coral bleaching specimen collection, preservation, and laboratory processing methods. PeerJ 2021; 9:e11763. [PMID: 34285838 PMCID: PMC8272927 DOI: 10.7717/peerj.11763] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 06/21/2021] [Indexed: 12/02/2022] Open
Abstract
Under current climate warming predictions, the future of coral reefs is dire. With projected coral reef decline, it is likely that coral specimens for bleaching research will increasingly become a more limited resource in the future. By adopting a holistic approach through increased collaborations, coral bleaching scientists can maximize a specimen’s investigative yield, thus reducing the need to remove more coral material from the reef. Yet to expand a specimen’s utility for additional analytic methods, information on how corals are collected is essential as many methods are variably sensitive to upstream handling and processing. In an effort to identify common practices for coral collection, sacrifice, preservation, and processing in coral bleaching research, we surveyed the literature from the last 6.5 years and created and analyzed the resulting dataset of 171 publications. Since January 2014, at least 21,890 coral specimens were collected for bleaching surveys or bleaching experiments. These specimens spanned 122 species of scleractinian corals where the most frequently sampled were Acropora millepora, Pocillopora damicornis, and Stylophora pistillata. Almost 90% of studies removed fragments from the reef, 6% collected skeletal cores, and 3% collected mucus specimens. The most common methods for sacrificing specimens were snap freezing with liquid nitrogen, chemical preservation (e.g., with ethanol or nucleic acid stabilizing buffer), or airbrushing live fragments. We also characterized 37 distinct methodological pathways from collection to processing of specimens in preparation for a variety of physiological, -omic, microscopy, and imaging analyses. Interestingly, almost half of all studies used only one of six different pathways. These similarities in collection, preservation, and processing methods illustrate that archived coral specimens could be readily shared among researchers for additional analyses. In addition, our review provides a reference for future researchers who are considering which methodological pathway to select to maximize the utility of coral bleaching specimens that they collect.
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Affiliation(s)
- Rowan H McLachlan
- School of Earth Sciences, Ohio State University, Columbus, OH, United States of America
| | - Kerri L Dobson
- School of Earth Sciences, Ohio State University, Columbus, OH, United States of America
| | - Emily R Schmeltzer
- Department of Microbiology, Oregon State University, Corvallis, OR, United States of America
| | - Rebecca Vega Thurber
- Department of Microbiology, Oregon State University, Corvallis, OR, United States of America
| | - Andréa G Grottoli
- School of Earth Sciences, Ohio State University, Columbus, OH, United States of America
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Trinanes J, Martinez-Urtaza J. Future scenarios of risk of Vibrio infections in a warming planet: a global mapping study. Lancet Planet Health 2021; 5:e426-e435. [PMID: 34245713 DOI: 10.1016/s2542-5196(21)00169-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 05/31/2021] [Accepted: 06/02/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Infections caused by non-cholera Vibrio species have undergone a global expansion over the past few decades reaching new areas of the world that were previously considered adverse for these organisms. The geographical extent of the expansion has not been uniform, and some areas have shown a rapid increase in infections. METHODS We applied a new generation of models combining climate, population, and socioeconomic projections to map future scenarios of distribution and season suitability for pathogenic Vibrio. We used the Coupled Model Intercomparison Project 6 framework. Three datasets were used: Geophysical Fluid Dynamics Laboratory's CM4.0 sea surface temperature and sea surface salinity; the coastline length dataset from the World Resources Institute; and Inter-Sectoral Impact Model Intercomparison Project 2b annual global population data. Future projections were used up to the year 2100 and historical simulations from 1850 to 2014. We also project human population at risk under different shared socioeconomic pathways worldwide. FINDINGS Projections showed that coastal areas suitable for Vibrio could cover 38 000 km of new coastal areas by 2100 under the most unfavourable scenario with an expansion rate of season suitability in these regions of around 1 month every 30 years. Population at risk in suitable regions almost doubled from 1980 to 2020 (from 610 million to 1100 million under the scenario of medium challenges to mitigation and adaptation, shared socioeconomic pathway 2-4.5), although the increment will be more moderate in the future and stabilises after 2050 at 1300 million. Finally, we provide the first global estimate for Vibrio infections, with values around half a million of cases worldwide in 2020. INTERPRETATION Our projections anticipated an expansion of both the temporal and spatial disease burden for Vibrio infections, in particular at high latitudes of the northern hemisphere. However, the largest extent occurred from 1980 to 2020 and a more moderate increase is expected for the future. The most positive outcome is that the projections showed that Vibrio morbidity will remain relatively stable over the coming decades. FUNDING NOAA Atlantic Oceanographic and Meteorological Laboratory and NOAA OceanWatch, and by the University of Miami's Cooperative Institute for Marine and Atmospheric Studies.
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Affiliation(s)
- Joaquin Trinanes
- CRETUS Institute, Department of Electronics and Computer Science, Universidade de Santiago de Compostela, Santiago de Compostela, Spain; Atlantic Oceanographic and Meteorological Laboratory, National Oceanic and Atmospheric Administration, Miami, FL, USA; Cooperative Institute for Marine and Atmospheric Studies, Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL, USA
| | - Jaime Martinez-Urtaza
- Department of Genetics and Microbiology, Facultat de Biociències, Universitat Autònoma de Barcelona, Barcelona, Spain.
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Song X, Assis J, Zhang J, Gao X, Gao H, Duan D, Serrão EA, Hu Z. Climate-induced range shifts shaped the present and threaten the future genetic variability of a marine brown alga in the Northwest Pacific. Evol Appl 2021; 14:1867-1879. [PMID: 34295369 PMCID: PMC8288013 DOI: 10.1111/eva.13247] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 04/22/2021] [Accepted: 04/28/2021] [Indexed: 11/28/2022] Open
Abstract
Glaciation-induced environmental changes during the last glacial maximum (LGM) have strongly influenced species' distributions and genetic diversity patterns in the northern high latitudes. However, these effects have seldom been assessed on sessile species in the Northwest Pacific. Herein, we chose the brown alga Sargassum thunbergii to test this hypothesis, by comparing present population genetic variability with inferred geographical range shifts from the LGM to the present, estimated with species distribution modelling (SDM). Projections for contrasting scenarios of future climate change were also developed to anticipate genetic diversity losses at regional scales. Results showed that S. thunbergii harbours strikingly rich genetic diversity and multiple divergent lineages in the centre-northern range of its distribution, in contrast with a poorer genetically distinct lineage in the southern range. SDM hindcasted refugial persistence in the southern range during the LGM as well as post-LGM expansion of 18 degrees of latitude northward. Approximate Bayesian computation (ABC) analysis further suggested that the multiple divergent lineages in the centre-northern range limit stem from post-LGM colonization from the southern survived lineage. This suggests divergence due to demographic bottlenecks during range expansion and massive genetic diversity loss during post-LGM contraction in the south. The projected future range of S. thunbergii highlights the threat to unique gene pools that might be lost under global changes.
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Affiliation(s)
- Xiao‐Han Song
- Key Laboratory of Experimental Marine BiologyCenter for Ocean Mega‐ScienceInstitute of OceanologyChinese Academy of SciencesQingdaoChina
- Laboratory for Marine Biology and BiotechnologyQingdao National Laboratory for Marine Science and TechnologyQingdaoChina
- University of Chinese Academy of SciencesBeijingChina
| | - Jorge Assis
- CCMARUniversity of Algarve, Campus de GambelasFaroPortugal
| | - Jie Zhang
- Key Laboratory of Experimental Marine BiologyCenter for Ocean Mega‐ScienceInstitute of OceanologyChinese Academy of SciencesQingdaoChina
- Laboratory for Marine Biology and BiotechnologyQingdao National Laboratory for Marine Science and TechnologyQingdaoChina
| | - Xu Gao
- Faculty of Biological Science and Research Institute for Basic ScienceWonkwang UniversityIksanKorea
| | - Han‐Gil Gao
- Faculty of Biological Science and Research Institute for Basic ScienceWonkwang UniversityIksanKorea
| | - De‐Lin Duan
- Key Laboratory of Experimental Marine BiologyCenter for Ocean Mega‐ScienceInstitute of OceanologyChinese Academy of SciencesQingdaoChina
- Laboratory for Marine Biology and BiotechnologyQingdao National Laboratory for Marine Science and TechnologyQingdaoChina
| | | | - Zi‐Min Hu
- Key Laboratory of Experimental Marine BiologyCenter for Ocean Mega‐ScienceInstitute of OceanologyChinese Academy of SciencesQingdaoChina
- Ocean SchoolYantai UniversityYantaiChina
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44
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Fernández-Nóvoa D, Costoya X, deCastro M, Gómez-Gesteira M. Influence of the mightiest rivers worldwide on coastal sea surface temperature warming. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 768:144915. [PMID: 33736332 DOI: 10.1016/j.scitotenv.2020.144915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 12/18/2020] [Accepted: 12/28/2020] [Indexed: 06/12/2023]
Abstract
Ocean warming as a consequence of climate change occurred during the last decades is not homogeneous. This is especially patent for coastal areas, where the warming is influenced by local processes that occur at different time and spatial scales. In this sense, plumes formed by rivers discharge can play a key role in sea surface temperature (SST) warming. SST trends for the coastal points affected by the plumes of the 19 world's mightiest rivers (south 60°N) and their oceanic counterparts were analyzed by means of NOAA's AVHRR OISST data over the period 1982-2019. Coastal areas affected by river plumes showed an annual less intense warming trend than observed at the adjacent ocean in all cases. In average, warming trend was 0.088 °C dec-1 lower for coastal areas, ranging from 0.027 °C dec-1 for Mekong and Irrawaddy/Salween River plume systems to 0.208 °C dec-1 and 0.278 °C dec-1 for Mississippi and Paraná River plumes. The differences in coastal-ocean warming obtained for rivers debouching into inland seas (Danube and Volga Rivers) are similar to the ones observed for the rest of the rivers, even if inland seas are prone to higher warming rates than open seas. As the main conclusion, river plumes seem to have the ability to modulate SST warming near coast within the current context of global warming.
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Affiliation(s)
- D Fernández-Nóvoa
- Environmental PHYSics LABoratory (EPHYSLAB), CIM-UVIGO, University of Vigo, Ourense, Spain.
| | - X Costoya
- CRETUS Institute, Group of Nonlinear Physics, Department of Particle Physics, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - M deCastro
- Environmental PHYSics LABoratory (EPHYSLAB), CIM-UVIGO, University of Vigo, Ourense, Spain
| | - M Gómez-Gesteira
- Environmental PHYSics LABoratory (EPHYSLAB), CIM-UVIGO, University of Vigo, Ourense, Spain
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45
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Caves EM, Johnsen S. The sensory impacts of climate change: bathymetric shifts and visually mediated interactions in aquatic species. Proc Biol Sci 2021; 288:20210396. [PMID: 33878924 PMCID: PMC8059512 DOI: 10.1098/rspb.2021.0396] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 03/26/2021] [Indexed: 01/31/2023] Open
Abstract
Visual perception is, in part, a function of the ambient illumination spectrum. In aquatic environments, illumination depends upon the water's optical properties and depth, both of which can change due to anthropogenic impacts: turbidity is increasing in many aquatic habitats, and many species have shifted deeper in response to warming surface waters (known as bathymetric shifts). Although increasing turbidity and bathymetric shifts can result in similarly large changes to a species' optical environment, no studies have yet examined the impact of the latter on visually mediated interactions. Here, we examine a potential link between climate change and visual perception, with a focus on colour. We discuss (i) what is known about bathymetric shifts; (ii) how the impacts of bathymetric shifts on visual interactions may be distributed across species; (iii) which interactions might be affected; and (iv) the ways that animals have to respond to these changes. As warming continues and temperature fluctuations grow more extreme, many species may move into even deeper waters. There is thus a need for studies that examine how such shifts can affect an organism's visual world, interfere with behaviour, and impact fitness, population dynamics, and community structure.
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Affiliation(s)
- Eleanor M. Caves
- Centre for Ecology and Conservation, Exeter University, Penryn TR10 9FE, UK
| | - Sönke Johnsen
- Biology Department, Duke University, Durham, NC 27708, USA
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46
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Tan ALS, Cheng MCF, Giacoletti A, Chung JX, Liew J, Sarà G, Williams GA. Integrating mechanistic models and climate change projections to predict invasion of the mussel, Mytilopsis sallei, along the southern China coast. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 762:143097. [PMID: 33139009 DOI: 10.1016/j.scitotenv.2020.143097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 09/27/2020] [Accepted: 10/12/2020] [Indexed: 06/11/2023]
Abstract
Species invasion is an important cause of global biodiversity decline and is often mediated by shifts in environmental conditions such as climate change. To investigate this relationship, a mechanistic Dynamic Energy Budget model (DEB) approach was used to predict how climate change may affect spread of the invasive mussel Mytilopsis sallei, by predicting variation in the total reproductive output of the mussel under different scenarios. To achieve this, the DEB model was forced with present-day satellite data of sea surface temperature (SST) and chlorophyll-a concentration (Chl-a), and SST under two warming RCP scenarios and decreasing current Chl-a levels, to predict future responses. Under both warming scenarios, the DEB model predicted the reproductive output of M. sallei would enhance range extension of the mussel, especially in regions south of the Yangtze River when future declines in Chl-a were reduced by less than 10%, whereas egg production was inhibited when Chl-a decreased by 20-30%. The decrease in SST in the Yangtze River may, however, be a natural barrier to the northward expansion of M. sallei, with colder temperatures resulting in a strong decrease in egg production. Although the invasion path of M. sallei may be inhibited northwards by the Yangtze River, larger geographic regions south of the Yangtze River run the risk of invasion, with subsequent negative impacts on aquaculture through competition for food with farmed bivalves and damaging aquaculture facilities. Using a DEB model approach to characterise the life history traits of M. sallei, therefore, revealed the importance of food availability and temperature on the reproductive output of this mussel and allowed evaluation of the invasion risk for specific regions. DEB is, therefore, a powerful predictive tool for risk management of already established invasive populations and to identify regions with a high potential invasion risk.
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Affiliation(s)
- Alicia Lee Sian Tan
- The Swire Institute of Marine Science and School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong
| | - Martin Chun Fai Cheng
- The Swire Institute of Marine Science and School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong
| | - Antonio Giacoletti
- Department of Earth and Marine Science, University of Palermo, Palermo, Italy; Department of Integrative Marine Ecology, Stazione Zoologica Anton Dohrn - Sicily Marine Centre, Lungomare Cristoforo Colombo (Complesso Roosevelt), 90142 Palermo, Italy
| | - Jing Xiang Chung
- Institut Oseanografi dan Sekitaran, Univerisiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia; Faculty of Science and Marine Environment, Univeristi Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia
| | - Juneng Liew
- Department of Earth Sciences and Environment, Faculty of Science and Technology, University Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
| | - Gianluca Sarà
- Department of Earth and Marine Science, University of Palermo, Palermo, Italy
| | - Gray A Williams
- The Swire Institute of Marine Science and School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong.
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47
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Clutton EA, Alurralde G, Repolho T. Early developmental stages of native populations of Ciona intestinalis under increased temperature are affected by local habitat history. J Exp Biol 2021; 224:jeb233403. [PMID: 33472872 PMCID: PMC7938807 DOI: 10.1242/jeb.233403] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 01/06/2021] [Indexed: 11/20/2022]
Abstract
Temperature modulates marine ectotherm physiology, influencing survival, abundance and species distribution. While native species could be susceptible to ocean warming, thermal tolerance might favour the spread of non-native species. Determining the success of invasive species in response to climate change is confounded by the cumulative, synergistic or antagonistic effects of environmental drivers, which vary at a geographical and temporal scale. Thus, an organism's acclimation or adaptive potential could play an important evolutionary role by enabling or conditioning species tolerance to stressful environmental conditions. We investigated developmental performance of early life stages of the ascidian Ciona intestinalis (derived from populations of anthropogenically impacted and control sites) to an extreme weather event (i.e. marine heatwave). Fertilization rate, embryo and larval development, settlement, metamorphosis success and juvenile heart rate were assessed as experimental endpoints. With the exception of fertilization and heart rates, temperature influenced all analysed endpoints. C. intestinalis derived from control sites were the most negatively affected by increased temperature conditions. By contrast, C. intestinalis from anthropogenically impacted sites showed a positive response to thermal stress, with a higher proportion of larvae development, settlement and metamorphosis success being observed under increased temperature conditions. No differences were observed for heart rates between sampled populations and experimental temperature conditions. Moreover, interaction between temperature and populations was statistically significant for embryo and larvae development, and metamorphosis. We hypothesize that selection resulting from anthropogenic forcing could shape stress resilience of species in their native range and subsequently confer advantageous traits underlying their invasive potential.
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Affiliation(s)
- Elizabeth A Clutton
- Institute of Marine Sciences, Faculty of Science and Health, University of Portsmouth, Eastney, Portsmouth PO4 9LY, UK
| | - Gaston Alurralde
- Universidad Nacional de Córdoba, Facultad de Ciencias Exactas, Físicas y Naturales, Departamento Diversidad Biológica y Ecología, Ecología Marina, Av. Velez Sarsfield 299 (X5000JJC), Córdoba, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Diversidad y Ecologıa Animal (IDEA), Av. Velez Sarsfield 299 (X5000JJC), Córdoba, Argentina
| | - Tiago Repolho
- MARE - Centro de Ciências do Mar e do Ambiente (MARE), Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
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48
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Lin J, Zou X, Huang F, Yao Y. Quantitative estimation of sea surface temperature increases resulting from the thermal discharge of coastal power plants in China. MARINE POLLUTION BULLETIN 2021; 164:112020. [PMID: 33513542 DOI: 10.1016/j.marpolbul.2021.112020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 12/21/2020] [Accepted: 01/11/2021] [Indexed: 06/12/2023]
Abstract
The operation of coastal nuclear power plants and thermal power plants (CNATPPs) can cause regional sea surface temperature (SST) increases. To assess their effects on coastal ecosystems, the scope and extent of their impacts must be understood. We aimed to quantitatively assess the SST increases caused by thermal discharge under climate warming by comparing SSTs between control and test groups and among different offshore buffer zones based on daily MODIS SST data from 2002 to 2017. The results showed that (1) a good correlation occurred between the CNATPP installed capacity and SST increase in the 0-2 km offshore waters; (2) the SST increase caused by thermal discharge was the largest in summer and the smallest in winter; and (3) the effect of thermal discharge occurred within 2 km offshore when the installed capacity exceeded 2000 MW and extended to 5 km when it reaches more than 4000 MW.
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Affiliation(s)
- Jie Lin
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China.
| | - Xinqing Zou
- School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing 210093, China; Ministry of Education Key Laboratory for Coast and Island Development, Nanjing University, Nanjing 210093, China; Collaborative Innovation Center of South China Sea Studies, Nanjing University, Nanjing 210093, China.
| | - Faming Huang
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China.
| | - Yulong Yao
- School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing 210093, China; Ministry of Education Key Laboratory for Coast and Island Development, Nanjing University, Nanjing 210093, China; Collaborative Innovation Center of South China Sea Studies, Nanjing University, Nanjing 210093, China
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49
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Wei Q, Xue L, Yao Q, Wang B, Yu Z. Oxygen decline in a temperate marginal sea: Contribution of warming and eutrophication. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 757:143227. [PMID: 33158513 DOI: 10.1016/j.scitotenv.2020.143227] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 10/14/2020] [Accepted: 10/15/2020] [Indexed: 06/11/2023]
Abstract
Dissolved oxygen (DO) decline (i.e., deoxygenation) is an ongoing process in parts of the coastal and open oceans as a result of increased greenhouse gas emissions and nutrient discharges. Yet its controlling mechanisms remain unclear and patchy. Based on continuous observational data collected in a temperate margin, the southern Yellow Sea (SYS), we quantitatively evaluate how deoxygenation responds to warming and eutrophication in different seasons by using an evaluation method that allows us to distinguish the effects of temperature, salinity and biological activities. Results show that during winter, when the water column is vertically well-mixed, and in summer surface waters, deoxygenation is dominated by warming-induced decreases of O2 solubility due to a quick exchange of O2 between the ocean and atmosphere. Moreover, we find a regionally accelerated deoxygenation with enhanced warming along the pathway of the YSCC (Yellow Sea Coastal Current) in winter. In contrast, for bottom waters in summer when O2 exchange is inhibited due to high stratification, deoxygenation appears to be dominated by biological respiration associated with eutrophication. Also, we find the summer bottom deoxygenation can be accelerated by warming, indicating that the bottom waters or the hypolimnion may be vulnerable to deoxygenation in the future. Our study further demonstrates that the deoxygenation mechanisms in shallow coastal oceans are associated with water column structures, i.e., well-mixed vs. stratified water column. Information is assembled into a conceptual model to provide an overview of deoxygenation in temperate marginal systems.
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Affiliation(s)
- Qinsheng Wei
- First Institute of Oceanography, Ministry of Natural Resources, 6 Xianxialing Road, Qingdao 266061, China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, 1 Wenhai Road, Qingdao 266237, China.
| | - Liang Xue
- First Institute of Oceanography, Ministry of Natural Resources, 6 Xianxialing Road, Qingdao 266061, China; Laboratory for Regional Oceanography and Numerical Modeling, Qingdao National Laboratory for Marine Science and Technology, 1 Wenhai Road, Qingdao 266237, China
| | - Qingzhen Yao
- Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, 1 Wenhai Road, Qingdao 266237, China; Frontiers Science Center for Deep Ocean Multispheres and Earth System, and Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, 238 Songling Road, Qingdao 266100, China
| | - Baodong Wang
- First Institute of Oceanography, Ministry of Natural Resources, 6 Xianxialing Road, Qingdao 266061, China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, 1 Wenhai Road, Qingdao 266237, China.
| | - Zhigang Yu
- Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, 1 Wenhai Road, Qingdao 266237, China; Frontiers Science Center for Deep Ocean Multispheres and Earth System, and Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, 238 Songling Road, Qingdao 266100, China
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50
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Effects of temperature on the behaviour and metabolism of an intertidal foraminifera and consequences for benthic ecosystem functioning. Sci Rep 2021; 11:4013. [PMID: 33597653 PMCID: PMC7889916 DOI: 10.1038/s41598-021-83311-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 02/01/2021] [Indexed: 01/31/2023] Open
Abstract
Heatwaves have increased in intensity, duration and frequency over the last decades due to climate change. Intertidal species, living in a highly variable environment, are likely to be exposed to such heatwaves since they can be emerged for more than 6 h during a tidal cycle. Little is known, however, on how temperature affects species traits (e.g. locomotion and behaviour) of slow-moving organisms such as benthic foraminifera (single-celled protists), which abound in marine sediments. Here, we examine how temperature influences motion-behaviour and metabolic traits of the dominant temperate foraminifera Haynesina germanica by exposing individuals to usual (6, 12, 18, 24, 30 °C) and extreme (high; i.e. 32, 34, 36 °C) temperature regimes. Our results show that individuals reduced their activity by up to 80% under high temperature regimes whereas they remained active under the temperatures they usually experience in the field. When exposed to a hyper-thermic stress (i.e. 36 °C), all individuals remained burrowed and the photosynthetic activity of their sequestered chloroplasts significantly decreased. Recovery experiments subsequently revealed that individuals initially exposed to a high thermal regime partially recovered when the hyper-thermic stress ceased. H. germanica contribution to surface sediment reworking substantially diminished from 10 mm3 indiv-1 day-1 (usual temperature) to 0 mm3 indiv-1 day-1 when individuals were exposed to high temperature regimes (i.e. above 32 °C). Given their role in sediment reworking and organic matter remineralisation, our results suggest that heatwaves may have profound long-lasting effects on the functioning of intertidal muddy ecosystems and some key biogeochemical cycles.
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