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David CL, Marzloff MP, Knights AM, Cugier P, Nunes FLD, Cordier C, Firth LB, Dubois SF. Connectivity modelling informs metapopulation structure and conservation priorities for a reef‐building species. DIVERS DISTRIB 2022. [DOI: 10.1111/ddi.13596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Affiliation(s)
- Carmen L. David
- IFREMER, DYNECO Plouzané France
- Marine Animal Ecology Wageningen University and Research Wageningen The Netherlands
| | | | - Antony M. Knights
- School of Biological and Marine Sciences University of Plymouth Plymouth UK
| | | | | | | | - Louise B. Firth
- School of Biological and Marine Sciences University of Plymouth Plymouth UK
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Filbee-Dexter K, Feehan CJ, Smale DA, Krumhansl KA, Augustine S, de Bettignies F, Burrows MT, Byrnes JEK, Campbell J, Davoult D, Dunton KH, Franco JN, Garrido I, Grace SP, Hancke K, Johnson LE, Konar B, Moore PJ, Norderhaug KM, O’Dell A, Pedersen MF, Salomon AK, Sousa-Pinto I, Tiegs S, Yiu D, Wernberg T. Kelp carbon sink potential decreases with warming due to accelerating decomposition. PLoS Biol 2022; 20:e3001702. [PMID: 35925899 PMCID: PMC9352061 DOI: 10.1371/journal.pbio.3001702] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Accepted: 06/08/2022] [Indexed: 11/18/2022] Open
Abstract
Cycling of organic carbon in the ocean has the potential to mitigate or exacerbate global climate change, but major questions remain about the environmental controls on organic carbon flux in the coastal zone. Here, we used a field experiment distributed across 28° of latitude, and the entire range of 2 dominant kelp species in the northern hemisphere, to measure decomposition rates of kelp detritus on the seafloor in relation to local environmental factors. Detritus decomposition in both species were strongly related to ocean temperature and initial carbon content, with higher rates of biomass loss at lower latitudes with warmer temperatures. Our experiment showed slow overall decomposition and turnover of kelp detritus and modeling of coastal residence times at our study sites revealed that a significant portion of this production can remain intact long enough to reach deep marine sinks. The results suggest that decomposition of these kelp species could accelerate with ocean warming and that low-latitude kelp forests could experience the greatest increase in remineralization with a 9% to 42% reduced potential for transport to long-term ocean sinks under short-term (RCP4.5) and long-term (RCP8.5) warming scenarios. However, slow decomposition at high latitudes, where kelp abundance is predicted to expand, indicates potential for increasing kelp-carbon sinks in cooler (northern) regions. Our findings reveal an important latitudinal gradient in coastal ecosystem function that provides an improved capacity to predict the implications of ocean warming on carbon cycling. Broad-scale patterns in organic carbon decomposition revealed here can be used to identify hotspots of carbon sequestration potential and resolve relationships between carbon cycling processes and ocean climate at a global scale.
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Affiliation(s)
- Karen Filbee-Dexter
- Institute of Marine Research, His, Norway
- UWA Oceans Institute & School of Biological Sciences, The University of Western Australia, Perth, Australia
| | - Colette J. Feehan
- Department of Biology, Montclair State University, Montclair, New Jersey, United States of America
| | - Dan A. Smale
- Marine Biological Association of the United Kingdom, The Laboratory, Plymouth, United Kingdom
| | - Kira A. Krumhansl
- Bedford Institute of Oceanography, Fisheries and Oceans Canada, Dartmouth, Nova Scotia, Canada
| | - Skye Augustine
- Department of Biology, University of Victoria, Victoria, British Columbia, Canada
| | - Florian de Bettignies
- Sorbonne Université, CNRS, Station Biologique de Roscoff, Place Georges Teissier, Roscoff, France
| | | | - Jarrett E. K. Byrnes
- Department of Biology, University of Massachusetts Boston, Boston, Massachusetts, United States of America
| | - Jillian Campbell
- Department of Biology, University of Victoria, Victoria, British Columbia, Canada
| | - Dominique Davoult
- Sorbonne Université, CNRS, Station Biologique de Roscoff, Place Georges Teissier, Roscoff, France
| | - Kenneth H. Dunton
- Marine Science Institute, The University of Texas at Austin, Port Aransas, Texas, United States of America
| | - João N. Franco
- Marine and Environmental Sciences Centre, ESTM, Politécnico de Leiria, Peniche, Portugal
- CIIMAR—Interdisciplinary Centre of Marine and Environmental Research, and Faculty of Sciences, University of Porto, Porto, Portugal
| | - Ignacio Garrido
- Department of Biology and Québec-Océan, Laval University, Québec, Québec, Canada
- Centro FONDAP de Investigación en Dinámica de Ecosistemas Marinos de Altas Latitudes (IDEAL), Facultad de Ciencias, Universidad Austral de Chile (UACh), Valdivia, Chile
| | - Sean P. Grace
- Department of Biology, Werth Center for Coastal and Marine Studies, Southern Connecticut State University, New Haven, Connecticut, United States of America
| | - Kasper Hancke
- Norwegian Institute for Water Research (NIVA), Section for Marine Biology, Oslo, Norway
| | - Ladd E. Johnson
- Department of Biology and Québec-Océan, Laval University, Québec, Québec, Canada
| | - Brenda Konar
- College of Fisheries and Ocean Sciences, University of Alaska Fairbanks, Fairbanks, Alaska, United States of America
| | - Pippa J. Moore
- The Dove Marine Laboratory, School of Natural and Environmental Science, Newcastle University, Newcastle, United Kingdom
| | | | - Alasdair O’Dell
- Scottish Association for Marine Science, Oban, Argyll, Scotland
| | - Morten F. Pedersen
- Department of Science and Environment, Roskilde University, Roskilde, Denmark
| | - Anne K. Salomon
- Department of Biology, University of Victoria, Victoria, British Columbia, Canada
| | - Isabel Sousa-Pinto
- CIIMAR—Interdisciplinary Centre of Marine and Environmental Research, and Faculty of Sciences, University of Porto, Porto, Portugal
| | - Scott Tiegs
- Oakland University, Department of Biological Sciences, Michigan, United States of America
| | - Dara Yiu
- Department of Biology, Montclair State University, Montclair, New Jersey, United States of America
- University of Washington, School of Aquatic and Fishery Sciences, Seattle, Washington, United States of America
| | - Thomas Wernberg
- Institute of Marine Research, His, Norway
- UWA Oceans Institute & School of Biological Sciences, The University of Western Australia, Perth, Australia
- The Dove Marine Laboratory, School of Natural and Environmental Science, Newcastle University, Newcastle, United Kingdom
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203
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Oulhen N, Byrne M, Duffin P, Gomez-Chiarri M, Hewson I, Hodin J, Konar B, Lipp EK, Miner BG, Newton AL, Schiebelhut LM, Smolowitz R, Wahltinez SJ, Wessel GM, Work TM, Zaki HA, Wares JP. A Review of Asteroid Biology in the Context of Sea Star Wasting: Possible Causes and Consequences. THE BIOLOGICAL BULLETIN 2022; 243:50-75. [PMID: 36108034 PMCID: PMC10642522 DOI: 10.1086/719928] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
AbstractSea star wasting-marked in a variety of sea star species as varying degrees of skin lesions followed by disintegration-recently caused one of the largest marine die-offs ever recorded on the west coast of North America, killing billions of sea stars. Despite the important ramifications this mortality had for coastal benthic ecosystems, such as increased abundance of prey, little is known about the causes of the disease or the mechanisms of its progression. Although there have been studies indicating a range of causal mechanisms, including viruses and environmental effects, the broad spatial and depth range of affected populations leaves many questions remaining about either infectious or non-infectious mechanisms. Wasting appears to start with degradation of mutable connective tissue in the body wall, leading to disintegration of the epidermis. Here, we briefly review basic sea star biology in the context of sea star wasting and present our current knowledge and hypotheses related to the symptoms, the microbiome, the viruses, and the associated environmental stressors. We also highlight throughout the article knowledge gaps and the data needed to better understand sea star wasting mechanistically, its causes, and potential management.
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Affiliation(s)
- Nathalie Oulhen
- Department of Molecular and Cell Biology and Biochemistry, Brown University, Providence, Rhode Island
| | - Maria Byrne
- School of Life and Environmental Sciences, University of Sydney, Sydney, New South Wales, Australia
| | - Paige Duffin
- Department of Genetics, University of Georgia, Athens, Georgia
| | - Marta Gomez-Chiarri
- Department of Fisheries, Animal, and Veterinary Science, University of Rhode Island, Kingston, Rhode Island
| | - Ian Hewson
- Department of Microbiology, Cornell University, Ithaca, New York
| | - Jason Hodin
- Friday Harbor Labs, University of Washington, Friday Harbor, Washington
| | - Brenda Konar
- College of Fisheries and Ocean Sciences, University of Alaska, Fairbanks, Alaska
| | - Erin K. Lipp
- Department of Environmental Health Science, University of Georgia, Athens, Georgia
| | - Benjamin G. Miner
- Department of Biology, Western Washington University, Bellingham, Washington
| | | | - Lauren M. Schiebelhut
- Department of Life and Environmental Sciences, University of California, Merced, California
| | - Roxanna Smolowitz
- Department of Biology and Marine Biology, Roger Williams University, Bristol, Rhode Island
| | - Sarah J. Wahltinez
- Department of Comparative, Diagnostic, and Population Medicine, College of Veterinary Medicine, University of Florida, Gainesville, Florida
| | - Gary M. Wessel
- Department of Molecular and Cell Biology and Biochemistry, Brown University, Providence, Rhode Island
| | - Thierry M. Work
- US Geological Survey, National Wildlife Health Center, Honolulu Field Station, Honolulu, Hawaii
| | - Hossam A. Zaki
- Department of Molecular and Cell Biology and Biochemistry, Brown University, Providence, Rhode Island
| | - John P. Wares
- Department of Genetics, University of Georgia, Athens, Georgia
- Odum School of Ecology, University of Georgia, Athens, Georgia
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204
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Lins DM, Rocha RM. Invasive species fouling Perna perna (Bivalvia: Mytilidae) mussel farms. MARINE POLLUTION BULLETIN 2022; 181:113829. [PMID: 35709680 DOI: 10.1016/j.marpolbul.2022.113829] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 06/02/2022] [Accepted: 06/06/2022] [Indexed: 06/15/2023]
Abstract
Invasive, fouling species increase management costs and reduce mussel growth, which jeopardizes mariculture. We studied the distribution of eight invasive species in Santa Catarina, the leading mussel producer in Brazil. Our goals were to determine their spatial distribution and prevalence on farm structures (buoys, long lines, and mussel socks), as well as understand the relevance of propagule pressure (recruitment), port distance, and area of the farm in this distribution. Although present in all sites, adult and recruits distribution were spatially restricted, showing that species might have a metapopulation structure. The most prevalent species were the ascidian Styela plicata, the barnacle Megabalanus coccopoma, the bryozoan Schizoporella errata, and the polychaete Branchiomma luctuosum. Recruitment was the main driver of three species distribution while distance to port explained only one species distribution. Based on those results, we discuss policy options, management, and regulation enforcement, that can be used in the mussel aquaculture elsewhere.
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Affiliation(s)
- Daniel M Lins
- Ecology and Conservation Graduate Program, Universidade Federal do Paraná, Brazil.
| | - Rosana M Rocha
- Zoology Department, Universidade Federal do Paraná, Brazil
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205
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Last snail standing? superior thermal resilience of an alien tropical intertidal gastropod over natives in an ocean-warming hotspot. Biol Invasions 2022. [DOI: 10.1007/s10530-022-02871-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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206
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Tan EYW, Neo ML, Huang D. Assessing taxonomic, functional and phylogenetic diversity of giant clams across the Indo‐Pacific for conservation prioritization. DIVERS DISTRIB 2022. [DOI: 10.1111/ddi.13609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Affiliation(s)
- Edwin Y. W. Tan
- Department of Biological Sciences National University of Singapore Singapore Singapore
| | - Mei Lin Neo
- Department of Biological Sciences National University of Singapore Singapore Singapore
- Tropical Marine Science Institute National University of Singapore Singapore Singapore
| | - Danwei Huang
- Department of Biological Sciences National University of Singapore Singapore Singapore
- Tropical Marine Science Institute National University of Singapore Singapore Singapore
- Centre for Nature‐based Climate Solutions National University of Singapore Singapore Singapore
- Lee Kong Chian Natural History Museum National University of Singapore Singapore Singapore
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207
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Coral Holobionts Possess Distinct Lipid Profiles That May Be Shaped by Symbiodiniaceae Taxonomy. Mar Drugs 2022; 20:md20080485. [PMID: 36005488 PMCID: PMC9410212 DOI: 10.3390/md20080485] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 07/25/2022] [Accepted: 07/25/2022] [Indexed: 11/29/2022] Open
Abstract
Symbiotic relationships are very important for corals. Abiotic stressors cause the acclimatization of cell membranes in symbionts, which possess different membrane acclimatization strategies. Membrane stability is determined by a unique lipid composition and, thus, the profile of thylakoid lipids can depend on coral symbiont species. We have analyzed and compared thylakoid lipidomes (mono- and digalactosyldiacylglycerols (MGDG and DGDG), sulfoquinovosyldiacylglycerols (SQDG), and phosphatidylglycerols (PG)) of crude extracts from symbiotic reef-building coral Acropora sp., the hydrocoral Millepora platyphylla, and the octocoral Sinularia flexibilis. S. flexibilis crude extracts were characterized by a very high SQDG/PG ratio, a DGDG/MGDG ratio < 1, a lower degree of galactolipid unsaturation, a higher content of SQDG with polyunsaturated fatty acids, and a thinner thylakoid membrane which may be explained by the presence of thermosensitive dinoflagellates Cladocopium C3. In contrast, crude extracts of M. platyphylla and Acropora sp. exhibited the lipidome features of thermotolerant Symbiodiniaceae. M. platyphylla and Acropora sp. colonies contained Cladocopium C3u and Cladocopium C71/C71a symbionts, respectively, and their lipidome profiles showed features that indicate thermotolerance. We suggest that an association with symbionts that exhibit the thermotolerant thylakoid lipidome features, combined with a high Symbiodiniaceae diversity, may facilitate further acclimatization/adaptation of M. platyphylla and Acropora sp. holobionts in the South China Sea.
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208
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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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209
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CaliPopGen: A genetic and life history database for the fauna and flora of California. Sci Data 2022; 9:380. [PMID: 35790740 PMCID: PMC9256587 DOI: 10.1038/s41597-022-01479-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 06/20/2022] [Indexed: 11/13/2022] Open
Abstract
CaliPopGen is a database of population genetic data for native and naturalized eukaryotic species in California, USA. It summarizes the published literature (1985–2020) for 5,453 unique populations with genetic data from more than 187,394 individuals and 448 species (513 species plus subspecies) across molecular markers including allozymes, RFLPs, mtDNA, microsatellites, nDNA, and SNPs. Terrestrial habitats accounted for the majority (46.4%) of the genetic data. Taxonomic groups with the greatest representation were Magnoliophyta (20.31%), Insecta (13.4%), and Actinopterygii (12.85%). CaliPopGen also reports life-history data for most included species to enable analyses of the drivers of genetic diversity across the state. The large number of populations and wide taxonomic breadth will facilitate explorations of ecological patterns and processes across the varied geography of California. CaliPopGen covers all terrestrial and marine ecoregions of California and has a greater density of species and georeferenced populations than any previously published population genetic database. It is thus uniquely suited to inform conservation management at the regional and state levels across taxonomic groups. Measurement(s) | genetic variation | Technology Type(s) | DNA sequencing | Factor Type(s) | Kingdom • Phylum • TaxonGroup • MarkerType • SampleSize • GeneTarget • NumMarkers • YearStart • YearEnd • PopName • LongitudeDD • LatitudeDD • CoordError • HabitatType • Lifespan • Fecundity • LifetimeReprodOutput • AgeSexMat • NumBreedingEvents • ReprodMode • BodyLength • AdultMass • CANativeStatus • CESAStatus • SSCStatus • ESAStatus • LifeCycle • AdultHeight • SelfCompatibility • MonoeciousDioecious • Asexual • PollinationMode • SeedDispMode • MassPerSeed • CAEndemicStatus | Sample Characteristic - Organism | eukaryota | Sample Characteristic - Location | California |
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210
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Seebens H, Kaplan E. DASCO: A workflow to downscale alien species checklists using occurrence records and to re-allocate species distributions across realms. NEOBIOTA 2022. [DOI: 10.3897/neobiota.74.81082] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Information about occurrences of alien species is often provided in so-called checklists, which represents lists of reported alien species in a region. In many cases, available checklists cover whole countries, which is too coarse for many analyses and limits capabilities of assessing status and trends of biological invasions. Information about point-wise occurrences is available in large quantities at online facilities such as GBIF and OBIS, which, however, do not provide information about the invasion status of individual populations. To close this gap, we here provide a semi-automated workflow called DASCO to downscale regional checklists using occurrence records obtained from GBIF and OBIS. Within the workflow, coordinate-based occurrence records for species listed in the provided regional checklists are obtained from GBIF and OBIS, and the status of being an alien population is assigned using the information in the provided checklists. In this way, information in checklists is made available at the local scale, which can then be re-allocated to any other spatial categorisation as provided by the user. In addition, habitats of species are determined to distinguish between marine, brackish, terrestrial, and freshwater species, which allows splitting the provided checklists to the respective realms and ecoregions. By using checklists of global databases, we showcase the usage of the DASCO workflow and revealed > 35 million occurrence records of alien populations in terrestrial and marine regions worldwide, which were back-transformed to terrestrial and marine regions for comparison. DASCO has the potential to be used as a basis for the widely applied species distribution models or assessments of status and trends of biological invasions at large geographic scales. The workflow is implemented in R and in full compliance with the FAIR data principles of open science.
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211
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Sampaio Í, Beuck L, Freiwald A. A new octocoral species of Swiftia (Holaxonia, Plexauridae) from the upper bathyal off Mauritania (NE Atlantic). Zookeys 2022; 1106:121-140. [PMID: 36760817 PMCID: PMC9848795 DOI: 10.3897/zookeys.1106.81364] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Accepted: 05/11/2022] [Indexed: 11/12/2022] Open
Abstract
Three species of the genus Swiftia are known for the NE Atlantic Ocean and Mediterranean Sea. Remotely-operated vehicle (ROV) surveys and sampling on board RV Maria S. Merian during cruise MSM 16/3 'PHAETON' in 2010 provided footage and specimens of octocorals off Mauritania. Micro-computed tomography (micro-CT) reveals, for the first time in taxonomy of octocorals, the three-dimensional arrangement of the sclerites in a polyp. Swiftiaphaeton sp. nov. is described for the continental slope off Mauritania. This azooxanthellate octocoral is distinctive from NE Atlantic and Mediterranean congenerics by the dark red colour of the colonies (including the polyps), the presence of a layer of rod sclerites on top of the polyp mounds, and different sizes of polyps and sclerites. Using micro-CT has allowed the observation and imaging of a layer of sclerites that is distinct from other species of the same genus. ROV images revealed live records of S.phaeton sp. nov. in submarine canyons and on cold-water coral mounds in the upper-bathyal off Mauritania (396-639 m depth), mainly attached to dead coral, coral rubble, or rocks. The new species represents an extension of the genus distribution to the tropical latitudes (17°07'N and 20°14'N) of the NE Atlantic Ocean.
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Affiliation(s)
- Íris Sampaio
- Senckenberg am Meer, Marine Research Department, Südstrand 40, 26382 Wilhelmshaven, GermanySenckenberg am MeerWilhelmshavenGermany,University of the Azores, Rua Prof. Dr. Frederico Machado, 9901-862 Horta, Açores, PortugalUniversity of the AzoresHortaPortugal
| | - Lydia Beuck
- Senckenberg am Meer, Marine Research Department, Südstrand 40, 26382 Wilhelmshaven, GermanySenckenberg am MeerWilhelmshavenGermany
| | - André Freiwald
- Senckenberg am Meer, Marine Research Department, Südstrand 40, 26382 Wilhelmshaven, GermanySenckenberg am MeerWilhelmshavenGermany
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212
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Monitoring of benthic eukaryotic communities in two tropical coastal lagoons through eDNA metabarcoding: a spatial and temporal approximation. Sci Rep 2022; 12:10089. [PMID: 35710829 PMCID: PMC9203746 DOI: 10.1038/s41598-022-13653-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 05/09/2022] [Indexed: 11/14/2022] Open
Abstract
Tropical coastal lagoons are important ecosystems that support high levels of biodiversity and provide several goods and services. Monitoring of benthic biodiversity and detection of harmful or invasive species is crucial, particularly in relation to seasonal and spatial variation of environmental conditions. In this study, eDNA metabarcoding was used in two tropical coastal lagoons, Chacahua (CH) and Corralero (C) (Southern Mexican Pacific), to describe the benthic biodiversity and its spatial–temporal dynamics. The distribution of benthic diversity within the lagoons showed a very particular pattern evidencing a transition from freshwater to seawater. Although the two lagoon systems are similar in terms of the species composition of metazoans and microeukaryotes, our findings indicate that they are different in taxa richness and structure, resulting in regional partitioning of the diversity with salinity as the driving factor of community composition in CH. Harmful, invasive, non-indigenous species, bioindicators and species of commercial importance were detected, demonstrating the reach of this technique for biodiversity monitoring along with the continued efforts of building species reference libraries.
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213
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HUSTON DANIELC, CUTMORE SCOTTC, CRIBB THOMASH. Enenterum kyphosi Yamaguti, 1970 and Enenterum petrae n. sp. (Digenea: Enenteridae) from kyphosid fishes (Centrarchiformes: Kyphosidae) collected in marine waters off eastern Australia. Zootaxa 2022; 5154:271-288. [DOI: 10.11646/zootaxa.5154.3.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Indexed: 11/04/2022]
Abstract
Species of the digenean genus Enenterum Linton, 1910 (Lepocreadioidea: Enenteridae) are characterised primarily by their elaborate oral suckers, which are divided into varying numbers of anteriorly directed lobes, and their host-restriction to herbivorous marine fishes of the family Kyphosidae. We describe Enenterum petrae n. sp. from the brassy chub Kyphosus vaigiensis (Quoy & Gaimard) collected off Lizard Island, Great Barrier Reef, Queensland, Australia. Enenterum petrae n. sp. is readily differentiated from congeners by its unique oral sucker morphology, in having a minute pharynx, and the combination of a genital cap and accessory sucker. We also provide the first record of Enenterum kyphosi Yamaguti, 1970 from Australia based on material obtained from the blue sea chub Kyphosus cinerascens (Forsskål) collected off Lizard Island and North Stradbroke Island, Queensland. Morphologically, our specimens of E. kyphosi agree closely with descriptions of this species from Hawaii and South Africa, and despite lack of molecular data from outside of Australian waters, we consider all three reports to represent a single, widespread species. The first ITS2 and COI mtDNA gene sequences for species of Enenterum are provided and molecular phylogenetic analyses of 28S rDNA gene sequences place these species in a strongly-supported clade with the type-species of the genus, Enenterum aureum Linton, 1910. The oral suckers of both E. kyphosi and E. petrae n. sp. can be interpreted as having varying numbers of lobes depending on the particular specimen and how the division between lobes is defined. Scanning electron microscopical images improves understanding of the morphology of the enenterid oral sucker, and permits speculation regarding the evolutionary history leading to its specialisation in this lineage.
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214
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Lambert C, Fort J. No evidence that seasonal changes in large-scale environmental conditions drive migration in seabirds. J Anim Ecol 2022; 91:1813-1825. [PMID: 35681266 DOI: 10.1111/1365-2656.13759] [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: 11/09/2021] [Accepted: 05/31/2022] [Indexed: 11/30/2022]
Abstract
Seasonal variability is one of the main drivers of seasonal movements like migration. The literature has suggested that bird migration is often driven by poor environmental conditions during one season and permits avoidance of resource shortage or harsh weather by tracking the more favourable conditions. We tested at the global scale, and focusing on seabirds, whether this pattern exists in the marine realm. Specifically, we tested the hypothesis that seabird migration permits achieving stability in niche occupancy, and that it is triggered by seasonal variations in niche availability. We collated data on monthly presence of species over marine ecoregions from literature and expert knowledge. First, we quantified niche occupancy during breeding and non-breeding periods from environmental conditions encountered in ecoregions in which species were present at each periods and compared seasonal dynamics across migratory strategies. Second, we quantified the seasonal niche dynamics from simulated residency in breeding and non-breeding grounds to quantify the seasonality in niche availability and to test its effect on seabird migratory strategies. We demonstrated that all seabirds are niche trackers, yet resident and dispersive seabirds displayed higher levels of niche tracking throughout the year, regardless of the environmental seasonality, while migrants exhibited more divergent seasonal niches. In most cases, migratory status was not related to the unavailability of favourable conditions at the breeding or non-breeding grounds, suggesting that the availability of the favourable niche is not the main driver of migration. We hypothesise that this unexpected pattern might arise from strong constraints imposed on seabirds by the scarcity of suitable breeding sites which constrain the range of environments available for optimising reproductive success. This work sheds new light on the ecological drivers of migration.
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Affiliation(s)
| | - Jérôme Fort
- LIENSs UMR 7266 La Rochelle Université-CNRS, La Rochelle, France
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215
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Lin XN, Hu LS, Dong YW. Two complete mitochondrial genomes of the barnacle Lepas anatifera Linnaeus, 1758 (Scalpellomorpha, Lepadidae) implying the possibility of cryptic speciation. Mitochondrial DNA B Resour 2022; 7:1090-1092. [PMID: 35756446 PMCID: PMC9225761 DOI: 10.1080/23802359.2022.2086497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The barnacle Lepas anatifera Linnaeus, 1758 (Scalpellomorpha, Lepadidae) is a worldwide distributed species. For investigating its genetic diversity in the northwest Pacific, two complete mitochondrial genomes were determined and analyzed. The lengths of the two complete mitogenomes were 15,708 bp and 15,703 bp, respectively. Both of them contained typical 37 genes with an identical order to L. anserifera Linnaeus, 1767 and L. australis Darwin, 1851 mitogenome. Except for ND1 and ND2, 11 protein-coding genes (PCGs) started with an ATN initiation codon (ATA, ATG, ATC, and ATT). Twelve PCGs were terminated with TAA or TAG stop codon, whereas ND1 possessed an incomplete termination codon (T–). Phylogenetic analysis revealed that L. australis and L. anserifera clustered together, and then with L. anatifera. The distinct genetic distances (0.17) based on concatenated sequence of 13 PCGs between the two mitogenomes of L. anatifera suggest the existence of cryptic speciation. Additional samples from multiple localities should be collected and analyzed to deepen the understanding of cryptic diversity within the northwest Pacific.
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Affiliation(s)
- Xiao-Nie Lin
- 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
| | - Li-Sha Hu
- 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
| | - 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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216
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Boo GH, Leliaert F, Le Gall L, Coppejans E, De Clerck O, Van Nguyen T, Payri CE, Miller KA, Yoon HS. Ancient Tethyan Vicariance and Long-Distance Dispersal Drive Global Diversification and Cryptic Speciation in the Red Seaweed Pterocladiella. FRONTIERS IN PLANT SCIENCE 2022; 13:849476. [PMID: 35720545 PMCID: PMC9201827 DOI: 10.3389/fpls.2022.849476] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 05/13/2022] [Indexed: 05/27/2023]
Abstract
We investigated the globally distributed red algal genus Pterocladiella, comprising 24 described species, many of which are economically important sources of agar and agarose. We used DNA-based species delimitation approaches, phylogenetic, and historical biogeographical analyses to uncover cryptic diversity and infer the drivers of biogeographic patterns. We delimited 43 species in Pterocladiella, of which 19 are undescribed. Our multigene time-calibrated phylogeny and ancestral area reconstruction indicated that Pterocladiella most likely originated during the Early Cretaceous in the Tethys Sea. Ancient Tethyan vicariance and long-distance dispersal have shaped current distribution patterns. The ancestor of Eastern Pacific species likely arose before the formation of the formidable Eastern Pacific Barrier-a first confirmation using molecular data in red algae. Divergences of Northeast and Southeast Pacific species have been driven by the Central American Seaway barrier, which, paradoxically, served as a dispersal pathway for Atlantic species. Both long- and short-distance dispersal scenarios are supported by genetic relationships within cosmopolitan species based on haplotype analysis. Asymmetrical distributions and the predominance of peripatry and sympatry between sister species suggest the importance of budding speciation in Pterocladiella. Our study highlights the underestimation of global diversity in these crucial components of coastal ecosystems and provides evidence for the complex evolution of current species distributions.
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Affiliation(s)
- Ga Hun Boo
- Department of Biological Sciences, Sungkyunkwan University, Suwon, South Korea
- Institut de Systématique, Evolution, Biodiversité (ISYEB), Muséum National d’Histoire Naturelle, CNRS, Sorbonne Université, EPHE, Paris, France
- University Herbarium, University of California, Berkeley, CA, United States
| | - Frederik Leliaert
- Meise Botanic Garden, Meise, Belgium
- Phycology Research Group, Department of Biology, Ghent University, Ghent, Belgium
| | - Line Le Gall
- Institut de Systématique, Evolution, Biodiversité (ISYEB), Muséum National d’Histoire Naturelle, CNRS, Sorbonne Université, EPHE, Paris, France
| | - Eric Coppejans
- Phycology Research Group, Department of Biology, Ghent University, Ghent, Belgium
| | - Olivier De Clerck
- Phycology Research Group, Department of Biology, Ghent University, Ghent, Belgium
| | - Tu Van Nguyen
- Department of Ecology, Institute of Tropical Biology, Vietnam Academy of Science and Technology, Ho Chi Minh City, Vietnam
| | - Claude E. Payri
- UMR Entropie (IRD, Ifremer, Univ Nouvelle-Calédonie, Univ La Réunion, CNRS), Nouméa, New Caledonia
| | - Kathy Ann Miller
- University Herbarium, University of California, Berkeley, CA, United States
| | - Hwan Su Yoon
- Department of Biological Sciences, Sungkyunkwan University, Suwon, South Korea
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217
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Borburema HDS, Yokoya NS, Souza JMCD, Nauer F, Barbosa-Silva MS, Marinho-Soriano E. Ocean warming and increased salinity threaten Bostrychia (Rhodophyta) species from genetically divergent populations. MARINE ENVIRONMENTAL RESEARCH 2022; 178:105662. [PMID: 35642998 DOI: 10.1016/j.marenvres.2022.105662] [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: 02/24/2022] [Revised: 05/14/2022] [Accepted: 05/18/2022] [Indexed: 06/15/2023]
Abstract
Increased greenhouse gas concentrations in the Earth's atmosphere have resulted in global change, such as ocean warming and sea level rise. Increased salinity in estuaries is expected as a result of sea level rise and warming. Thus, we analysed the interactive effects of increased temperature and salinity on multiple physiological responses of Bostrychia montagnei and B. calliptera from two biogeographic provinces, Tropical Southwestern Atlantic (TSA) and Warm Temperate Southwestern Atlantic (WTSA). Macroalgae were cultured under three salinities (15, 25 and 35 PSU) and three temperatures: mean sea surface temperature (SST: 27 °C for TSA and 24 °C for WTSA), an RCP8.5 ocean warming scenario (SST + 5 °C), and a maximum temperature to test the algal upper thermal tolerance limits (RCP8.5 + 2 °C). Macroalgae from both localities decreased their growth under increased temperature and salinity. RCP8.5 + 2 °C was lethal for both macroalgae from TSA. RCP8.5 and RCP8.5 + 2 °C at 35 PSU were lethal for B. calliptera from WTSA, due to the interactive effects between increased temperature and salinity. Overall, increased salinity decreased the effective quantum yield and relative electron transport rate in algal photosynthesis. Our results demonstrated that the macroalgae synthesized proteins, carbohydrates (polysaccharides and low molecular weight carbohydrates), and antioxidants to tolerate detrimental temperatures and salinities. Our results also demonstrated that the macroalgae adjusted their pigment contents (phycobiliproteins, total carotenoids, and chlorophyll a) for efficient light-harvesting under thermal and saline stress. Our findings suggest that ocean warming and increased salinity in estuaries will be detrimental to B. montagnei and B. calliptera populations from both biogeographic provinces, especially to those from TSA that already live closer to their upper thermal tolerance limits.
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Affiliation(s)
- Henrique D S Borburema
- Department of Oceanography and Limnology, Federal University of Rio Grande do Norte, Via Costeira, Mãe Luiza, Natal, RN, 59014-002, Brazil.
| | - Nair S Yokoya
- Biodiversity Conservation Center, Environmental Research Institute, Av. Miguel Estéfano 3687, Água Funda, São Paulo, SP, 04301-902, Brazil
| | - Jônatas Martinez Canuto de Souza
- Biodiversity Conservation Center, Environmental Research Institute, Av. Miguel Estéfano 3687, Água Funda, São Paulo, SP, 04301-902, Brazil
| | - Fabio Nauer
- Biodiversity Conservation Center, Environmental Research Institute, Av. Miguel Estéfano 3687, Água Funda, São Paulo, SP, 04301-902, Brazil
| | - Marcelle Stephanne Barbosa-Silva
- Department of Oceanography and Limnology, Federal University of Rio Grande do Norte, Via Costeira, Mãe Luiza, Natal, RN, 59014-002, Brazil
| | - Eliane Marinho-Soriano
- Department of Oceanography and Limnology, Federal University of Rio Grande do Norte, Via Costeira, Mãe Luiza, Natal, RN, 59014-002, Brazil
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218
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Evans MV, Drake JM. A Data-driven Horizon Scan of Bacterial Pathogens at the Wildlife-livestock Interface. ECOHEALTH 2022; 19:246-258. [PMID: 35666334 PMCID: PMC9168633 DOI: 10.1007/s10393-022-01599-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 04/01/2022] [Indexed: 06/15/2023]
Abstract
Many livestock diseases rely on wildlife for the transmission or maintenance of the pathogen, and the wildlife-livestock interface represents a potential site of disease emergence for novel pathogens in livestock. Predicting which pathogen species are most likely to emerge in the future is an important challenge for infectious disease surveillance and intelligence. We used a machine learning approach to conduct a data-driven horizon scan of bacterial associations at the wildlife-livestock interface for cows, sheep, and pigs. Our model identified and ranked from 76 to 189 potential novel bacterial species that might associate with each livestock species. Wildlife reservoirs of known and novel bacteria were shared among all three species, suggesting that targeting surveillance and/or control efforts towards these reservoirs could contribute disproportionately to reducing spillover risk to livestock. By predicting pathogen-host associations at the wildlife-livestock interface, we demonstrate one way to plan for and prevent disease emergence in livestock.
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Affiliation(s)
- Michelle V Evans
- MIVEGEC, Institut de Recherche pour le Développement, 34000, Montpellier, France.
- Odum School of Ecology, University of Georgia, Athens, 30606, USA.
- Center for Ecology of Infectious Diseases, University of Georgia, Athens, 30606, USA.
| | - John M Drake
- Odum School of Ecology, University of Georgia, Athens, 30606, USA
- Center for Ecology of Infectious Diseases, University of Georgia, Athens, 30606, USA
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219
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Cooke R, Gearty W, Chapman ASA, Dunic J, Edgar GJ, Lefcheck JS, Rilov G, McClain CR, Stuart-Smith RD, Kathleen Lyons S, Bates AE. Anthropogenic disruptions to longstanding patterns of trophic-size structure in vertebrates. Nat Ecol Evol 2022; 6:684-692. [PMID: 35449460 DOI: 10.1038/s41559-022-01726-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 03/07/2022] [Indexed: 11/09/2022]
Abstract
Diet and body mass are inextricably linked in vertebrates: while herbivores and carnivores have converged on much larger sizes, invertivores and omnivores are, on average, much smaller, leading to a roughly U-shaped relationship between body size and trophic guild. Although this U-shaped trophic-size structure is well documented in extant terrestrial mammals, whether this pattern manifests across diverse vertebrate clades and biomes is unknown. Moreover, emergence of the U-shape over geological time and future persistence are unknown. Here we compiled a comprehensive dataset of diet and body size spanning several vertebrate classes and show that the U-shaped pattern is taxonomically and biogeographically universal in modern vertebrate groups, except for marine mammals and seabirds. We further found that, for terrestrial mammals, this U-shape emerged by the Palaeocene and has thus persisted for at least 66 million years. Yet disruption of this fundamental trophic-size structure in mammals appears likely in the next century, based on projected extinctions. Actions to prevent declines in the largest animals will sustain the functioning of Earth's wild ecosystems and biomass energy distributions that have persisted through deep time.
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Affiliation(s)
- Rob Cooke
- UK Centre for Ecology & Hydrology, Wallingford, UK. .,Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden. .,Gothenburg Global Biodiversity Centre, Gothenburg, Sweden.
| | - William Gearty
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE, USA.
| | - Abbie S A Chapman
- Centre for Biodiversity and Environment Research, Department of Genetics, Evolution and Environment, University College London, London, UK
| | - Jillian Dunic
- Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Graham J Edgar
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Tasmania, Australia
| | - Jonathan S Lefcheck
- Tennenbaum Marine Observatories Network and MarineGEO Program, Smithsonian Environmental Research Center, Edgewater, MD, USA
| | - Gil Rilov
- National Institute of Oceanography, Israel Limnological and Oceanographic Research, Haifa, Israel
| | | | - Rick D Stuart-Smith
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Tasmania, Australia
| | - S Kathleen Lyons
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Amanda E Bates
- Biology Department, University of Victoria, Victoria, British Columbia, Canada
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220
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Chow SW, Keshavmurthy S, Reimer JD, de Voogd N, Huang H, Wang JT, Tang SL, Schupp PJ, Tan CH, Liew HC, Soong K, Subhan B, Madduppa H, Chen CA. Population genetics and demography of the coral-killing cyanobacteriosponge, Terpios hoshinota, in the Indo-West Pacific. PeerJ 2022; 10:e13451. [PMID: 35669953 PMCID: PMC9165603 DOI: 10.7717/peerj.13451] [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: 06/23/2021] [Accepted: 04/26/2022] [Indexed: 01/14/2023] Open
Abstract
The first occurrence of the cyanobacteriosponge Terpios hoshinota was reported from coral reefs in Guam in 1973, but was only formally described in 1993. Since then, the invasive behavior of this encrusting, coral-killing sponge has been observed in many coral reefs in the West Pacific. From 2015, its occurrence has expanded westward to the Indian Ocean. Although many studies have investigated the morphology, ecology, and symbiotic cyanobacteria of this sponge, little is known of its population genetics and demography. In this study, a mitochondrial cytochrome oxidase I (COI) fragment and nuclear ribosomal internal transcribed spacer 2 (ITS2) were sequenced to reveal the genetic variation of T. hoshinota collected from 11 marine ecoregions throughout the Indo-West Pacific. Both of the statistical parsimony networks based on the COI and nuclear ITS2 were dominated by a common haplotype. Pairwise F ST and Isolation-by-distance by Mantel test of ITS2 showed moderate gene flow existed among most populations in the marine ecoregions of West Pacific, Coral Triangle, and Eastern Indian Ocean, but with a restricted gene flow between these regions and Maldives in the Central Indian Ocean. Demographic analyses of most T. hoshinota populations were consistent with the mutation-drift equilibrium, except for the Sulawesi Sea and Maldives, which showed bottlenecks following recent expansion. Our results suggest that while long-range dispersal might explain the capability of T. hoshinota to spread in the IWP, stable population demography might account for the long-term persistence of T. hoshinota outbreaks on local reefs.
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Affiliation(s)
- Savanna Wenhua Chow
- Department of Life Sciences, National Taiwan Normal University, Taipei, Taiwan,Biodiversity Research Center, Academia Sinica, Taipei, Taiwan,Department of Oceanography, National Sun Yat-sen University, Kaohsiung, Taiwan,Biodiversity Program, Taiwan International Graduate Program, Academia Sinica, Taipei, Taiwan
| | | | - James Davis Reimer
- Department of Biology, Chemistry, and Marine Science, University of Ryukyus, Naha, Okinawa, Japan,Tropical Biosphere Research Center, University of the Ryukyus, Okinawa, Japan
| | - Nicole de Voogd
- Naturalis Biodiversity Center, Leiden, The Netherlands,Institute of Environmental Sciences, Environmental Biology Department, Leiden University, Leiden, Netherlands
| | - Hui Huang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
| | - Jih-Terng Wang
- Department of Oceanography, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Sen-Lin Tang
- Biodiversity Research Center, Academia Sinica, Taipei, Taiwan
| | - Peter J. Schupp
- Institute for Chemistry and Biology of the Marine Environment, University of Oldenburg, Oldenburg, Germany,Helmholtz Institute for Functional Marine Biodiversity at the, University of Oldenburg (HIFMB), Oldenburg, Germany
| | - Chun Hong Tan
- School of Marine and Environmental Sceinces, University of Malaysia Terengganu, Terengganu, Malaysia
| | - Hock-Chark Liew
- Sdn Bhd. Jalan Hiliran, Kuala Terengganu, Alchemy Laboratory & Services, Terengganu, Malaysia
| | - Keryea Soong
- Department of Oceanography, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Beginer Subhan
- Department of Marine Science & Technology, Faculty of Fisheries & Marine Sciences, IPB University, Bogor, Indonesia
| | - Hawis Madduppa
- Department of Marine Science & Technology, Faculty of Fisheries & Marine Sciences, IPB University, Bogor, Indonesia
| | - Chaolun Allen Chen
- Department of Life Sciences, National Taiwan Normal University, Taipei, Taiwan,Biodiversity Research Center, Academia Sinica, Taipei, Taiwan,Biodiversity Program, Taiwan International Graduate Program, Academia Sinica, Taipei, Taiwan,Department of Life Science, Tunghai University, Taichung, Taiwan
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221
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Salvetat J, Bez N, Habasque J, Lebourges-Dhaussy A, Lopes C, Roudaut G, Simier M, Travassos P, Vargas G, Bertrand A. Comprehensive spatial distribution of tropical fish assemblages from multifrequency acoustics and video fulfils the island mass effect framework. Sci Rep 2022; 12:8787. [PMID: 35610249 PMCID: PMC9130204 DOI: 10.1038/s41598-022-12409-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 04/27/2022] [Indexed: 11/22/2022] Open
Abstract
Tropical marine ecosystems are highly biodiverse and provide resources for small-scale fisheries and tourism. However, precise information on fish spatial distribution is lacking, which limits our ability to reconcile exploitation and conservation. We combined acoustics to video observations to provide a comprehensive description of fish distribution in a typical tropical environment, the Fernando de Noronha Archipelago (FNA) off Northeast Brazil. We identified and classified all acoustic echoes into ten fish assemblage and two triggerfish species. This opened up the possibility to relate the different spatial patterns to a series of environmental factors and the level of protection. We provide the first biomass estimation of the black triggerfish Melichthys niger, a key tropical player. By comparing the effects of euphotic and mesophotic reefs we show that more than the depth, the most important feature is the topography with the shelf-break as the most important hotspot. We also complete the portrait of the island mass effect revealing a clear spatial dissymmetry regarding fish distribution. Indeed, while primary productivity is higher downstream, fish concentrate upstream. The comprehensive fish distribution provided by our approach is directly usable to implement scientific-grounded Marine Spatial Planning.
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Affiliation(s)
- Julie Salvetat
- Pós-Graduação em Recursos Pesqueiros e Aquicultura, Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros, s/n, Dois Irmãos, Recife, PE, 52171-900, Brazil. .,MARBEC, Univ Montpellier, CNRS, IRD, Ifremer, Sète, France. .,Institut de Recherche pour le Développement, Sète, France.
| | - Nicolas Bez
- MARBEC, Univ Montpellier, CNRS, IRD, Ifremer, Sète, France.,Institut de Recherche pour le Développement, Sète, France
| | | | | | - Cristiano Lopes
- Pós-Graduação em Recursos Pesqueiros e Aquicultura, Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros, s/n, Dois Irmãos, Recife, PE, 52171-900, Brazil
| | | | - Monique Simier
- MARBEC, Univ Montpellier, CNRS, IRD, Ifremer, Sète, France.,Institut de Recherche pour le Développement, Sète, France
| | - Paulo Travassos
- Pós-Graduação em Recursos Pesqueiros e Aquicultura, Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros, s/n, Dois Irmãos, Recife, PE, 52171-900, Brazil
| | - Gary Vargas
- Pós-Graduação em Recursos Pesqueiros e Aquicultura, Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros, s/n, Dois Irmãos, Recife, PE, 52171-900, Brazil
| | - Arnaud Bertrand
- Pós-Graduação em Recursos Pesqueiros e Aquicultura, Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros, s/n, Dois Irmãos, Recife, PE, 52171-900, Brazil.,MARBEC, Univ Montpellier, CNRS, IRD, Ifremer, Sète, France.,Institut de Recherche pour le Développement, Sète, France.,Laboratório de Oceanografia Física Estuarina e Costeira, Depto. Oceanografia, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego, 1235-Cidade Universitária, Recife, PE, 50670-901, Brazil
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222
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Murray NJ, Worthington TA, Bunting P, Duce S, Hagger V, Lovelock CE, Lucas R, Saunders MI, Sheaves M, Spalding M, Waltham NJ, Lyons MB. High-resolution mapping of losses and gains of Earth's tidal wetlands. Science 2022; 376:744-749. [PMID: 35549414 DOI: 10.1126/science.abm9583] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Tidal wetlands are expected to respond dynamically to global environmental change, but the extent to which wetland losses have been offset by gains remains poorly understood. We developed a global analysis of satellite data to simultaneously monitor change in three highly interconnected intertidal ecosystem types-tidal flats, tidal marshes, and mangroves-from 1999 to 2019. Globally, 13,700 square kilometers of tidal wetlands have been lost, but these have been substantially offset by gains of 9700 km2, leading to a net change of -4000 km2 over two decades. We found that 27% of these losses and gains were associated with direct human activities such as conversion to agriculture and restoration of lost wetlands. All other changes were attributed to indirect drivers, including the effects of coastal processes and climate change.
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Affiliation(s)
- Nicholas J Murray
- College of Science and Engineering, James Cook University, Townsville, Australia
| | - Thomas A Worthington
- Conservation Science Group, Department of Zoology, University of Cambridge, Cambridge, UK
| | - Pete Bunting
- Department of Geography and Earth Sciences, Aberystwyth University, Aberystwyth, Wales, UK
| | - Stephanie Duce
- College of Science and Engineering, James Cook University, Townsville, Australia
| | - Valerie Hagger
- School of Biological Sciences, The University of Queensland, Brisbane, Australia
| | - Catherine E Lovelock
- School of Biological Sciences, The University of Queensland, Brisbane, Australia
| | - Richard Lucas
- Department of Geography and Earth Sciences, Aberystwyth University, Aberystwyth, Wales, UK
| | - Megan I Saunders
- Coasts and Ocean Research Program, CSIRO Oceans and Atmosphere, St. Lucia, Australia
| | - Marcus Sheaves
- College of Science and Engineering, James Cook University, Townsville, Australia
| | - Mark Spalding
- The Nature Conservancy, Department of Physical, Earth, and Environmental Sciences, University of Siena, Siena, Italy
| | - Nathan J Waltham
- College of Science and Engineering, James Cook University, Townsville, Australia.,TropWATER, Centre for Tropical Water and Aquatic Ecosystem Research, James Cook University, Townsville, Australia
| | - Mitchell B Lyons
- Centre for Ecosystem Science, School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, Australia
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223
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Peake JA, MacDonald TC, Thompson KA, Stallings CD. Community dynamics of estuarine forage fishes are associated with a latitudinal basal resource regime. Ecosphere 2022. [DOI: 10.1002/ecs2.4038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Jonathan A. Peake
- University of South Florida College of Marine Science St. Petersburg Florida USA
| | - Timothy C. MacDonald
- Florida Fish and Wildlife Conservation Commission Fish and Wildlife Research Institute St. Petersburg Florida USA
| | - Kevin A. Thompson
- Florida Fish and Wildlife Conservation Commission Fish and Wildlife Research Institute St. Petersburg Florida USA
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224
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Trematodes from Antarctic teleost fishes off Argentine Islands, West Antarctica: molecular and morphological data. Syst Parasitol 2022; 99:491-523. [PMID: 35553301 DOI: 10.1007/s11230-022-10041-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 04/11/2022] [Indexed: 10/18/2022]
Abstract
In 2014-2015 and 2019-2021, teleost fishes off Galindez Island (Antarctic Peninsula) were examined for trematodes. Combined morphological and molecular analyses revealed the presence of eight trematode species of four families (Hemiuridae, Lecithasteridae, Opecoelidae, Lepidapedidae) from five fish species. Only adult trematodes were found and all of them are Antarctic endemics with their congeners occurring on other continents. The hemiuroids, Elytrophalloides oatesi (Leiper & Atkinson, 1914), Genolinea bowersi (Leiper & Atkinson, 1914), and Lecithaster macrocotyle Szidat & Graefe, 1967 belong to the most common Antarctic species and together with Lepidapedon garrardi (Leiper & Atkinson, 1914) and Neolebouria georgiensis Gibson, 1976 they were recorded as the least host-specific parasites. The originally sub-Antarctic Neolepidapedon macquariensis Zdzitowiecki, 1993 is a new record for the Antarctic Peninsula and Parachaenichthys charcoti (Vaillant), is a new host record. Neolebouria terranovaensis Zdzitowiecki, Pisano & Vacchi, 1993 is considered a synonym of N. georgiensis because of identical morphology and dimensions. The currently known phylogenetic relationships within the studied families are supported, including the polyphyly of Macvicaria Gibson & Bray, 1982 with the future need to accommodate its Antarctic species in a new genus. The validity of M. georgiana (Kovaleva & Gaevskaja, 1974) and M. magellanica Laskowski, Jezewski & Zdzitowiecki, 2013 needs to be confirmed by further analyses. Genetic sequence data are still scarce from Antarctica, and more studies applying integrative taxonomic approaches and large-scale parasitological examinations of benthic invertebrates are needed to match sequences of larval stages to those of well-characterised adults and to elucidate trematode life-cycles.
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225
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de Azevedo Mazzuco AC, Fraga Bernardino A. Reef larval recruitment in response to seascape dynamics in the SW Atlantic. Sci Rep 2022; 12:7750. [PMID: 35546605 PMCID: PMC9095688 DOI: 10.1038/s41598-022-11809-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 04/11/2022] [Indexed: 11/08/2022] Open
Abstract
Advances in satellite observation have improved our capacity to track changes in the ocean with numerous ecological and conservation applications, which are yet under-explored for coastal ecology. In this study, we assessed the spatio-temporal dynamics in invertebrate larval recruitment and the Seascape Pelagic Habitat Classification, a satellite remote-sensing product developed by the Marine Biodiversity Observation Network (MBON) and delivered by the US National Oceanic and Atmospheric Administration to monitor biodiversity globally. Our ultimate goal was to identify and predict changes in coastal benthic assemblages at tropical reefs in the SW Atlantic based on integrated pelagic conditions, testing the use of MBON Seascape categorization. Our results revealed that the pelagic Seascapes correlated with monthly and seasonal variations in recruitment rates and assemblage composition. Recruitment was strongly influenced by subtropical Seascapes and was reduced by the presence of warm waters with high-nutrient contents and phytoplankton blooms, which are likely to affect reef communities in the long term. Recruitment modeling indicates that Seascapes may be more efficient than sea surface temperature in predicting benthic larval dynamics. Based on historical Seascape patterns, we identified seven events that may have impacted benthic recruitment in this region during the last decades. These findings provide new insights into the application of novel satellite remote-sensing Seascape categorizations in benthic ecology and evidence how reef larval supply in the SW Atlantic could be impacted by recent and future ocean changes.
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Affiliation(s)
- Ana Carolina de Azevedo Mazzuco
- Benthic Ecology Group, Department of Oceanography and Ecology, Universidade Federal do Espírito Santo, Av. Fernando Ferrari, 514, Vitória, ES, 29075-910, Brazil.
| | - Angelo Fraga Bernardino
- Benthic Ecology Group, Department of Oceanography and Ecology, Universidade Federal do Espírito Santo, Av. Fernando Ferrari, 514, Vitória, ES, 29075-910, Brazil.
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226
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Thoral F, Montie S, Thomsen MS, Tait LW, Pinkerton MH, Schiel DR. Unravelling seasonal trends in coastal marine heatwave metrics across global biogeographical realms. Sci Rep 2022; 12:7740. [PMID: 35545696 PMCID: PMC9095592 DOI: 10.1038/s41598-022-11908-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 04/27/2022] [Indexed: 11/22/2022] Open
Abstract
Marine heatwaves (MHWs) can cause dramatic changes to ecologically, culturally, and economically important coastal ecosystems. To date, MHW studies have focused on geographically isolated regions or broad-scale global oceanic analyses, without considering coastal biogeographical regions and seasons. However, to understand impacts from MHWs on diverse coastal communities, a combined biogeographical-seasonal approach is necessary, because (1) bioregions reflect community-wide temperature tolerances and (2) summer or winter heatwaves likely affect communities differently. We therefore carried out season-specific Theil–Sen robust linear regressions and Pettitt change point analyses from 1982 to 2021 on the number of events, number of MHW days, mean intensity, maximum intensity, and cumulative intensity of MHWs, for each of the world’s 12 major coastal biogeographical realms. We found that 70% of 240 trend analyses increased significantly, 5% decreased and 25% were unaffected. There were clear differences between trends in metrics within biogeographical regions, and among seasons. For the significant increases, most change points occurred between 1998 and 2006. Regression slopes were generally positive across MHW metrics, seasons, and biogeographical realms as well as being highest after change point detection. Trends were highest for the Arctic, Northern Pacific, and Northern Atlantic realms in summer, and lowest for the Southern Ocean and several equatorial realms in other seasons. Our analysis highlights that future case studies should incorporate break point changes and seasonality in MHW analysis, to increase our understanding of how future, more frequent, and stronger MHWs will affect coastal ecosystems.
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Affiliation(s)
- François Thoral
- Marine Ecology Research Group and Centre for Integrative Ecology, School of Biological Sciences, University of Canterbury, Christchurch, New Zealand. .,NIWA, Wellington, New Zealand.
| | - Shinae Montie
- Marine Ecology Research Group and Centre for Integrative Ecology, School of Biological Sciences, University of Canterbury, Christchurch, New Zealand
| | - Mads S Thomsen
- Marine Ecology Research Group and Centre for Integrative Ecology, School of Biological Sciences, University of Canterbury, Christchurch, New Zealand
| | - Leigh W Tait
- Marine Ecology Research Group and Centre for Integrative Ecology, School of Biological Sciences, University of Canterbury, Christchurch, New Zealand.,NIWA, Christchurch, New Zealand
| | | | - David R Schiel
- Marine Ecology Research Group and Centre for Integrative Ecology, School of Biological Sciences, University of Canterbury, Christchurch, New Zealand
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227
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Saenz‐Agudelo P, Peluso L, Nespolo R, Broitman BR, Haye PA, Lardies MA. Population genomic analyses reveal hybridization and marked differences in genetic structure of
Scurria
limpet sister species with parapatric distributions across the South Eastern Pacific. Ecol Evol 2022; 12:e8888. [PMID: 35571762 PMCID: PMC9078047 DOI: 10.1002/ece3.8888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 03/30/2022] [Accepted: 04/08/2022] [Indexed: 11/08/2022] Open
Affiliation(s)
- Pablo Saenz‐Agudelo
- Instituto de Ciencias Ambientales y Evolutivas Universidad Austral de Chile Valdivia Chile
- ANID‐ Millennium Science Initiative Nucleus (NUTME) Las Cruces Chile
| | - Lívia Peluso
- Instituto de Ciencias Ambientales y Evolutivas Universidad Austral de Chile Valdivia Chile
- Doctorado en Ciencias Mención Ecología y Evolución Escuela de Graduados Facultad de Ciencias Universidad Austral de Chile Valdivia Chile
| | - Roberto Nespolo
- Instituto de Ciencias Ambientales y Evolutivas Universidad Austral de Chile Valdivia Chile
- ANID‐ Millennium Science Initiative Nucleus (LiLi) Valdivia Chile
- Center for Applied Ecology and Sustainability (CAPES) Santiago Chile
- Millennium Institute for Integrative Biology (iBio) Santiago Chile
| | - Bernardo R. Broitman
- Departamento de Ciencias Facultad de Artes Liberales Universidad Adolfo Ibañez Santiago Chile
- ANID‐ Millennium Science Initiative Nucleus UPWELL Santiago Chile
- Instituto Milenio en Socio‐Ecología Costera (SECOS) Santiago Chile
| | - Pilar A. Haye
- Instituto Milenio en Socio‐Ecología Costera (SECOS) Santiago Chile
- Departamento de Biología Marina Universidad Católica del Norte Coquimbo Chile
| | - Marco A. Lardies
- Departamento de Ciencias Facultad de Artes Liberales Universidad Adolfo Ibañez Santiago Chile
- Instituto Milenio en Socio‐Ecología Costera (SECOS) Santiago Chile
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228
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Johnson JV, Dick JTA, Pincheira-Donoso D. Marine protected areas do not buffer corals from bleaching under global warming. BMC Ecol Evol 2022; 22:58. [PMID: 35508975 PMCID: PMC9066861 DOI: 10.1186/s12862-022-02011-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 04/18/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The rising temperature of the oceans has been identified as the primary driver of mass coral reef declines via coral bleaching (expulsion of photosynthetic endosymbionts). Marine protected areas (MPAs) have been implemented throughout the oceans with the aim of mitigating the impact of local stressors, enhancing fish biomass, and sustaining biodiversity overall. In coral reef regions specifically, protection from local stressors and the enhanced ecosystem function contributed by MPAs are expected to increase coral resistance to global-scale stressors such as marine heatwaves. However, MPAs still suffer from limitations in design, or fail to be adequately enforced, potentially reducing their intended efficacy. Here, we address the hypothesis that the local-scale benefits resulting from MPAs moderate coral bleaching under global warming related stress. RESULTS Bayesian analyses reveal that bleaching is expected to occur in both larger and older MPAs when corals are under thermal stress from marine heatwaves (quantified as Degree Heating Weeks, DHW), but this is partially moderated in comparison to the effects of DHW alone. Further analyses failed to identify differences in bleaching prevalence in MPAs relative to non-MPAs for coral reefs experiencing different levels of thermal stress. Finally, no difference in temperatures where bleaching occurs between MPA and non-MPA sites was found. CONCLUSIONS Our findings suggest that bleaching is likely to occur under global warming regardless of protected status. Thus, while protected areas have key roles for maintaining ecosystem function and local livelihoods, combatting the source of global warming remains the best way to prevent the decline of coral reefs via coral bleaching.
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Affiliation(s)
- Jack V Johnson
- Macrobiodiversity Lab, School of Biological Sciences, Queen's University Belfast, 19 Chlorine Gardens, Belfast, BT9 5DL, UK
| | - Jaimie T A Dick
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, 19 Chlorine Gardens, Belfast, BT9 5DL, UK
| | - Daniel Pincheira-Donoso
- Macrobiodiversity Lab, School of Biological Sciences, Queen's University Belfast, 19 Chlorine Gardens, Belfast, BT9 5DL, UK.
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229
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Nauer F, Oliveira MC, Plastino EM, Yokoya NS, Fujii MT. Coping with heatwaves: How a key species of seaweed responds to heat stress along its latitudinal gradient. MARINE ENVIRONMENTAL RESEARCH 2022; 177:105620. [PMID: 35472571 DOI: 10.1016/j.marenvres.2022.105620] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 03/19/2022] [Accepted: 04/03/2022] [Indexed: 06/14/2023]
Abstract
Marine heatwaves (MHWs) frequency and intensity are increasing around the globe, affecting marine ecosystems' structure and functioning. Understanding how key marine species respond to these short-term extreme events is urgent for predicting damage to coastal ecosystems. Hypnea pseudomusciformis presents distribution in different floristic provinces on the Brazilian coast: tropical, transition and warm-temperate. Here, we evaluate the effects of simulated heatwaves on H. pseudomusciformis populations by measuring the changes in algal growth, pigment content, and photosynthesis. Based on data for the last four decades, we characterized the MHW patterns for each of the three collection sites. Perturbation levels were identified as average intensity heatwave (Δ +2 °C), maximum intensity heatwave (Δ +4 °C) and extreme intensity heatwave (Δ +6 °C), with an average duration of seven days. Based on growth rate data, corroborated with measurements of photosynthesis fluorescence and pigment contents. H. pseudomusciformis populations exhibit distinct tolerance and physiological responses to MHWs. The tropical and transition specimens were affected by Δ + 4 °C and Δ + 6 °C MHW scenarios, while the warm-temperate specimens was the only one to recover in all the MHW scenarios tested. These data are worrisome under a global warming scenario and an increase in MHWs, indicating that tropical and transition specimens of H. pseudomusciformis may be at risk of local extinction. This knowledge will be fundamental in driving any future management intervention or policy change for the conservation of marine ecosystems.
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Affiliation(s)
- Fabio Nauer
- Biodiversity Conservation Center, Environmental Research Institute, Av. Miguel Estéfano 3687, 04301-902, São Paulo, Brazil.
| | - Mariana Cabral Oliveira
- Department of Botany, Institute of Biosciences, University of São Paulo, Rua do Matão 277, 05508-090, São Paulo, Brazil
| | - Estela Maria Plastino
- Department of Botany, Institute of Biosciences, University of São Paulo, Rua do Matão 277, 05508-090, São Paulo, Brazil
| | - Nair S Yokoya
- Biodiversity Conservation Center, Environmental Research Institute, Av. Miguel Estéfano 3687, 04301-902, São Paulo, Brazil
| | - Mutue Toyota Fujii
- Biodiversity Conservation Center, Environmental Research Institute, Av. Miguel Estéfano 3687, 04301-902, São Paulo, Brazil
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230
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Hwang S, Choi KH. Comparative fish community structure among different types of enclosures of estuarine environments. AQUACULTURE AND FISHERIES 2022. [DOI: 10.1016/j.aaf.2021.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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231
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Biogeography of the coastal fishes of the Socotra Archipelago: Challenging current ecoregional concepts. PLoS One 2022; 17:e0267086. [PMID: 35486578 PMCID: PMC9053782 DOI: 10.1371/journal.pone.0267086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 04/03/2022] [Indexed: 11/19/2022] Open
Abstract
The Socotra Archipelago, located in the eastern Gulf of Aden, has a unique marine environment, which combines tropical and ‘pseudo-temperate’ elements. An updated species inventory recently considered its coastal fish diversity the highest among Arabian ecoregions, necessitating to re-assess the ichthyogeographic position of the island group. The main aim of this study is to describe the distributional biogeography of its coastal fish fauna in relation to contemporary ichthyogeographic and ecoregional concepts. Inferences are drawn with regard to the marine biogeographic arrangement and ecoregional partitioning of the Arabian region. The main datasets comprise eight and twenty selected families including 404 and 898 species, respectively, from Arabian ecoregions. The Socotra Archipelago has close affinities to a putative ecoregion in the eastern Gulf of Aden that extends to southern Oman. It is more closely related to the Arabian Sea coast of Oman than to ecoregions in the Red Sea and a putative ecoregion in the western Gulf of Aden. The Gulf of Aden does not represent a consistent ecoregion in ichthyogeographic terms, because its eastern and western parts are less closely related to one another than to other ecoregions. The Socotra Archipelago and the eastern Gulf of Aden should therefore not be assigned to a joined province with Red Sea ecoregions. The coastal fish faunas of the southern Red Sea have close affinities with those of the western Gulf of Aden. The Arabian/Persian Gulf is least related to the other Arabian ecoregions. The authors posit the Socotra Archipelago as a distinct ecoregion, either on its own or in combination with affiliated mainland areas. This best reflects the ichthyogeographic data and the exceptionally high levels of fish and overall marine diversity. Two alternative ecoregional delineations are proposed, serving as working hypotheses for onward research.
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232
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Mathon L, Marques V, Mouillot D, Albouy C, Andrello M, Baletaud F, Borrero-Pérez GH, Dejean T, Edgar GJ, Grondin J, Guerin PE, Hocdé R, Juhel JB, Kadarusman, Maire E, Mariani G, McLean M, Polanco F. A, Pouyaud L, Stuart-Smith RD, Sugeha HY, Valentini A, Vigliola L, Vimono IB, Pellissier L, Manel S. Cross-ocean patterns and processes in fish biodiversity on coral reefs through the lens of eDNA metabarcoding. Proc Biol Sci 2022; 289:20220162. [PMID: 35440210 PMCID: PMC9019517 DOI: 10.1098/rspb.2022.0162] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 03/24/2022] [Indexed: 12/11/2022] Open
Abstract
Increasing speed and magnitude of global change threaten the world's biodiversity and particularly coral reef fishes. A better understanding of large-scale patterns and processes on coral reefs is essential to prevent fish biodiversity decline but it requires new monitoring approaches. Here, we use environmental DNA metabarcoding to reconstruct well-known patterns of fish biodiversity on coral reefs and uncover hidden patterns on these highly diverse and threatened ecosystems. We analysed 226 environmental DNA (eDNA) seawater samples from 100 stations in five tropical regions (Caribbean, Central and Southwest Pacific, Coral Triangle and Western Indian Ocean) and compared those to 2047 underwater visual censuses from the Reef Life Survey in 1224 stations. Environmental DNA reveals a higher (16%) fish biodiversity, with 2650 taxa, and 25% more families than underwater visual surveys. By identifying more pelagic, reef-associated and crypto-benthic species, eDNA offers a fresh view on assembly rules across spatial scales. Nevertheless, the reef life survey identified more species than eDNA in 47 shared families, which can be due to incomplete sequence assignment, possibly combined with incomplete detection in the environment, for some species. Combining eDNA metabarcoding and extensive visual census offers novel insights on the spatial organization of the richest marine ecosystems.
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Affiliation(s)
- Laetitia Mathon
- CEFE, Univ. Montpellier, CNRS, EPHE-PSL University, IRD, Montpellier, France
- ENTROPIE, Institut de Recherche pour le Développement (IRD), Univ. Réunion, UNC, CNRS, Q1 IFREMER, Nouméa, New Caledonia, France
| | - Virginie Marques
- CEFE, Univ. Montpellier, CNRS, EPHE-PSL University, IRD, Montpellier, France
- MARBEC, Univ Montpellier, CNRS, IFREMER, IRD, Montpellier, France
| | - David Mouillot
- MARBEC, Univ Montpellier, CNRS, IFREMER, IRD, Montpellier, France
- Institut Universitaire de France, France
| | - Camille Albouy
- DECOD (Ecosystem Dynamics and Sustainability), IFREMER, INRAE, Institut Agro - Agrocampus Ouest, Nantes, France
| | - Marco Andrello
- MARBEC, Univ Montpellier, CNRS, IFREMER, IRD, Montpellier, France
- Institute for the study of Anthropic Impacts and Sustainability in the marine environment, National Research Council (CNR-IAS), Rome, Italy
| | - Florian Baletaud
- ENTROPIE, Institut de Recherche pour le Développement (IRD), Univ. Réunion, UNC, CNRS, Q1 IFREMER, Nouméa, New Caledonia, France
- MARBEC, Univ Montpellier, CNRS, IFREMER, IRD, Montpellier, France
- SOPRONER, groupe GINGER, 98000 Noumea, New Caledonia, France
| | - Giomar H. Borrero-Pérez
- Programa de Biodiversidad y Ecosistemas Marinos, Museo de Historia Natural Marina de Colombia (MHNMC), Instituto de Investigaciones Marinas y Costeras- INVEMAR, Santa Marta, Colombia
| | | | - Graham J. Edgar
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Tasmania, Australia
| | | | | | - Régis Hocdé
- MARBEC, Univ Montpellier, CNRS, IFREMER, IRD, Montpellier, France
| | | | - Kadarusman
- Politeknik Kelautan dan Perikanan Sorong, KKD BP Sumberdaya Genetik, Konservasi dan Domestikasi, Papua Barat, Indonesia
| | - Eva Maire
- MARBEC, Univ Montpellier, CNRS, IFREMER, IRD, Montpellier, France
- Lancaster Environment Centre, Lancaster University, Lancaster, LA1 4YQ, UK
| | - Gael Mariani
- MARBEC, Univ Montpellier, CNRS, IFREMER, IRD, Montpellier, France
| | - Matthew McLean
- Department of Biology, Dalhousie University, Halifax NSB3H4R2, Canada
| | - Andrea Polanco F.
- Programa de Biodiversidad y Ecosistemas Marinos, Museo de Historia Natural Marina de Colombia (MHNMC), Instituto de Investigaciones Marinas y Costeras- INVEMAR, Santa Marta, Colombia
| | - Laurent Pouyaud
- ISEM, Univ Montpellier, CNRS, EPHE, IRD, Montpellier, France
| | - Rick D. Stuart-Smith
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Tasmania, Australia
| | - Hagi Yulia Sugeha
- Research Center for Oceanography, National Research and Innovation Agency, Jl. Pasir Putih 1, Ancol Timur, Jakarta Utara 14430, Indonesia
| | | | - Laurent Vigliola
- ENTROPIE, Institut de Recherche pour le Développement (IRD), Univ. Réunion, UNC, CNRS, Q1 IFREMER, Nouméa, New Caledonia, France
| | - Indra B. Vimono
- Research Center for Oceanography, National Research and Innovation Agency, Jl. Pasir Putih 1, Ancol Timur, Jakarta Utara 14430, Indonesia
| | - Loïc Pellissier
- Landscape Ecology, Institute of Terrestrial Ecosystems, Department of Environmental Systems Science, ETH Zürich, Zürich, Switzerland
- Unit of Land Change Science, Swiss Federal Research Institute WSL, Birmensdorf, Switzerland
| | - Stéphanie Manel
- CEFE, Univ. Montpellier, CNRS, EPHE-PSL University, IRD, Montpellier, France
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233
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Jesus MD, Zapelini C, Santana ROD, Schiavetti A. Octopus Fishing and New Information on Ecology and Fishing of the Shallow-Water Octopus Callistoctopus furvus (Gould, 1852) Based on the Local Ecological Knowledge of Octopus Fishers in the Marine Ecoregions of Brazil. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.788879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Studies that compile local ecological knowledge (LEK) on some of the various species of living beings observe biological data and are notably fundamental for effectively managing fisheries, supporting management strategies for protected areas, species conservation, and other factors. In this study, ethnoecological approaches were used to focus on the octopus Callistoctopus furvus (Gould, 1852), recently re-described and re-presented to the academic community more than a century after its discovery. The LEK of octopus fishers from different marine ecoregions of Brazil was compared to identify the distribution limits of the species along the Brazilian coast. Semi-structured interviews were conducted in 16 municipalities across four marine ecoregions located between the states of Ceará (northern limit) and Santa Catarina (southern limit), between March 2018 and August 2019. The results of the 187 interviews indicated a traditionality of fishing among artisanal octopus fishers, who are mostly men, although some are women who also share information on the fishing of C. furvus and hold leadership positions in the fishing colony. Cronbach’s alpha was used to analyze reliability of the form used in the interviews. A logistic regression model with binomial distribution was used to assess whether the probability of capturing the “eastern octopus” was associated with some of the interview variables. A cluster analysis based only on the respondents who caught the “eastern octopus” indicated the formation of groups and revealed greater dissimilarities among the fishers from the southeastern marine ecoregion of Brazil due to the fishing method used in the region. Heat maps showed that most of the information on the species was obtained in the eastern marine ecoregion of Brazil. The occurrence of the “eastern octopus” was recorded in all the studied Brazilian marine ecoregions. Moreover, this study revealed the relevant contribution of fishers’ knowledge to the distribution diagnosis of species with scarce scientific information.
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234
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Buelow CA, Connolly RM, Turschwell MP, Adame MF, Ahmadia GN, Andradi-Brown DA, Bunting P, Canty SWJ, Dunic JC, Friess DA, Lee SY, Lovelock CE, McClure EC, Pearson RM, Sievers M, Sousa AI, Worthington TA, Brown CJ. Ambitious global targets for mangrove and seagrass recovery. Curr Biol 2022; 32:1641-1649.e3. [PMID: 35196506 DOI: 10.1016/j.cub.2022.02.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 01/25/2022] [Accepted: 02/02/2022] [Indexed: 11/15/2022]
Abstract
There is an urgent need to halt and reverse loss of mangroves and seagrass to protect and increase the ecosystem services they provide to coastal communities, such as enhancing coastal resilience and contributing to climate stability.1,2 Ambitious targets for their recovery can inspire public and private investment in conservation,3 but the expected outcomes of different protection and restoration strategies are unclear. We estimated potential recovery of mangroves and seagrass through gains in ecosystem extent to the year 2070 under a range of protection and restoration strategies implemented until the year 2050. Under a protection-only scenario, the current trajectories of net mangrove loss slowed, and a minor net gain in global seagrass extent (∼1%) was estimated. Protection alone is therefore unlikely to drive sufficient recovery. However, if action is taken to both protect and restore, net gains of up to 5% and 35% of mangroves and seagrasses, respectively, could be achieved by 2050. Further, protection and restoration can be complementary, as protection prevents losses that would otherwise occur post-2050, highlighting the importance of implementing protection measures. Our findings provide the scientific evidence required for setting strategic and ambitious targets to inspire significant global investment and effort in mangrove and seagrass conservation.
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Affiliation(s)
- Christina A Buelow
- Coastal and Marine Research Centre, Australian Rivers Institute, School of Environment and Science, Griffith University, Gold Coast, QLD 4222, Australia.
| | - Rod M Connolly
- Coastal and Marine Research Centre, Australian Rivers Institute, School of Environment and Science, Griffith University, Gold Coast, QLD 4222, Australia
| | - Mischa P Turschwell
- Coastal and Marine Research Centre, Australian Rivers Institute, School of Environment and Science, Griffith University, Gold Coast, QLD 4222, Australia
| | - Maria F Adame
- Coastal and Marine Research Centre, Australian Rivers Institute, School of Environment and Science, Griffith University, Gold Coast, QLD 4222, Australia
| | - Gabby N Ahmadia
- Ocean Conservation, World Wildlife Fund, 1250 24th Street NW, Washington, D.C. 20037, USA
| | - Dominic A Andradi-Brown
- Ocean Conservation, World Wildlife Fund, 1250 24th Street NW, Washington, D.C. 20037, USA; Mangrove Specialist Group, International Union for the Conservation of Nature (IUCN), Conservation Programmes, Zoological Society of London, Regents Park, London NW1 4RY, UK
| | - Pete Bunting
- Department of Geography and Earth Sciences, Aberystwyth University, Aberystwyth, Wales SY23 3DB, UK
| | - Steven W J Canty
- Smithsonian Marine Station, 701 Seaway Drive, Fort Pierce, FL 34949, USA; Working Land and Seascapes, Smithsonian Institution, Washington, D.C. 20013, USA
| | - Jillian C Dunic
- Department of Biological Sciences, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
| | - Daniel A Friess
- Department of Geography, National University of Singapore, 1 Arts Link, Singapore 117570, Singapore; Centre for Nature-based Climate Solutions, National University of Singapore, 16 Science Drive 4, Singapore 117558, Singapore; Mangrove Specialist Group, International Union for the Conservation of Nature (IUCN), Conservation Programmes, Zoological Society of London, Regents Park, London NW1 4RY, UK
| | - Shing Yip Lee
- Mangrove Specialist Group, International Union for the Conservation of Nature (IUCN), Conservation Programmes, Zoological Society of London, Regents Park, London NW1 4RY, UK; Simon F.S. Li Marine Science Laboratory, School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Catherine E Lovelock
- Mangrove Specialist Group, International Union for the Conservation of Nature (IUCN), Conservation Programmes, Zoological Society of London, Regents Park, London NW1 4RY, UK; The University of Queensland, School of Biological Sciences, St. Lucia, QLD 4072, Australia
| | - Eva C McClure
- Coastal and Marine Research Centre, Australian Rivers Institute, School of Environment and Science, Griffith University, Gold Coast, QLD 4222, Australia; Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, QLD 4811, Australia
| | - Ryan M Pearson
- Coastal and Marine Research Centre, Australian Rivers Institute, School of Environment and Science, Griffith University, Gold Coast, QLD 4222, Australia
| | - Michael Sievers
- Coastal and Marine Research Centre, Australian Rivers Institute, School of Environment and Science, Griffith University, Gold Coast, QLD 4222, Australia
| | - Ana I Sousa
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Campus Universitário de Santiago, Aveiro 3810-193, Portugal
| | - Thomas A Worthington
- Conservation Science Group, Department of Zoology, University of Cambridge, Cambridge CB2 3QZ, UK
| | - Christopher J Brown
- Coastal and Marine Research Centre, Australian Rivers Institute, School of Environment and Science, Griffith University, Gold Coast, QLD 4222, Australia
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Serranito B, Diméglio T, Ysnel F, Lizé A, Feunteun E. Small- and large-scale processes including anthropogenic pressures as drivers of gastropod communities in the NE Atlantic coast: A citizen science based approach. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 816:151600. [PMID: 34774947 DOI: 10.1016/j.scitotenv.2021.151600] [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: 06/21/2021] [Revised: 10/22/2021] [Accepted: 11/07/2021] [Indexed: 06/13/2023]
Abstract
Rocky-shores are among the most threatened coastal habitats, particularly under human pressures. While rocky-shore communities have been increasingly used to evaluate local anthropogenic perturbations such as water eutrophication for instance, large-scale variability in relation to both natural and anthropogenic pressures is still overlooked. Here, using citizen science-based data, we applied a Random Forest modelling approach to assess the relative impact of both small-and large-scale processes (including natural and some anthropogenic pressures) on intertidal gastropod communities as well as taxa-specific gastropod abundances over more than 1000 km of the North-East Atlantic coast. Our model results demonstrate that small-scale conditions (i.e. within shore) are determinant in shaping gastropod communities. However, community responses are mainly driven by taxon-specific effects. Among large-scale predictors, high concentrations of inorganic nutrients and total suspended matter, as found in large river plumes, are the main drivers impacting the gastropod communities by depleting both taxon abundances and richness. According to models, the decline in abundance of the yet most prevalent taxa (Steromphala umbilicalis, Patella spp., S. pennanti and Phorcus lineatus) is expected to be between 65% and 85%, while Littorina littorea was the only taxon which may be favoured by high concentrations of inorganic nutrients and total suspended matter. Such results provide relevant insights in the context of ever-increasing needs for bioindicators of coastal ecosystems. Finally, this work sheds light on the value of a citizen science program resulting from a consultation between professional and citizen volunteers as a useful and efficient tool to investigate large-scale processes.
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Affiliation(s)
- Bruno Serranito
- Muséum National d'Histoire Naturelle (MNHN), Centre de Recherche et d'Enseignement sur les Systèmes Côtiers (CRESCO), Station Marine de Dinard, 38 rue du port blanc, 35800 Dinard, France.
| | - Tristan Diméglio
- Association Planète Mer, 137 avenue Clôt Bey, 13008 Marseille, France
| | - Frédéric Ysnel
- Université de Rennes 1, Unité Biologie des Organismes et Ecosystèmes Aquatiques (BOREA UMR 7208), Muséum National d'Histoire Naturelle, Sorbonne Universités, Université de Caen Normandie, Université desAntilles, CNRS, IRD, Campus de Beaulieu, 35042 Rennes Cedex, France
| | - Anne Lizé
- Muséum National d'Histoire Naturelle (MNHN), Centre de Recherche et d'Enseignement sur les Systèmes Côtiers (CRESCO), Station Marine de Dinard, 38 rue du port blanc, 35800 Dinard, France; Unité Biologie des Organismes et Ecosystèmes Aquatiques (BOREA UMR 7208), Muséum National d'Histoire Naturelle, Sorbonne Universités, Université de Caen Normandie, Université desAntilles, CNRS, IRD, Station Marine de Dinard, 38 rue du port blanc, 35800 Dinard, France; Department of Evolution, Ecology and Behaviour, University of Liverpool, Liverpool L69 7ZB, UK
| | - Eric Feunteun
- Muséum National d'Histoire Naturelle (MNHN), Centre de Recherche et d'Enseignement sur les Systèmes Côtiers (CRESCO), Station Marine de Dinard, 38 rue du port blanc, 35800 Dinard, France; Unité Biologie des Organismes et Ecosystèmes Aquatiques (BOREA UMR 7208), Muséum National d'Histoire Naturelle, Sorbonne Universités, Université de Caen Normandie, Université desAntilles, CNRS, IRD, Station Marine de Dinard, 38 rue du port blanc, 35800 Dinard, France
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236
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Drawing the borders of the mesophotic zone of the Mediterranean Sea using satellite data. Sci Rep 2022; 12:5585. [PMID: 35379864 PMCID: PMC8979996 DOI: 10.1038/s41598-022-09413-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 02/08/2022] [Indexed: 11/09/2022] Open
Abstract
The 30–150 m bathymetric range is commonly adopted in the literature to constrain the mesophotic zone. However, such depth interval varies depending on sunlight penetration, which is primarily a function of solar radiation incidence and water clarity. This is especially obvious in the Mediterranean Sea with its peculiar biophysical properties. Integrating information on light regime in the estimation of the bathymetric range of the mesophotic zone would provide a more robust definition, orienting conservation actions targeting its ecosystems. We present a first assessment of the spatial and vertical extension of the mesophotic zone in the Mediterranean Sea based upon light penetration, comparing our prediction with literature data. Our study also represents a baseline to monitor future variations in the bathymetric interval associated with the mesophotic zone in the Mediterranean Sea in relation to global changes.
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237
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O'Brien JM, Stanley RRE, Jeffery NW, Heaslip SG, DiBacco C, Wang Z. Modeling demersal fish and benthic invertebrate assemblages in support of marine conservation planning. ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2022; 32:e2546. [PMID: 35080327 PMCID: PMC9286868 DOI: 10.1002/eap.2546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 02/25/2021] [Accepted: 04/21/2021] [Indexed: 06/14/2023]
Abstract
Marine classification schemes based on abiotic surrogates often inform regional marine conservation planning in lieu of detailed biological data. However, these schemes may poorly represent ecologically relevant biological patterns required for effective design and management strategies. We used a community-level modeling approach to characterize and delineate representative mesoscale (tens to thousands of kilometers) assemblages of demersal fish and benthic invertebrates in the Northwest Atlantic. Hierarchical clustering of species occurrence data from four regional annual multispecies trawl surveys revealed three to six groupings (predominant assemblage types) in each survey region, broadly associated with geomorphic and oceanographic features. Indicator analyses identified 3-34 emblematic taxa of each assemblage type. Random forest classifications accurately predicted assemblage distributions from environmental covariates (AUC > 0.95) and identified thermal limits (annual minimum and maximum bottom temperatures) as important predictors of distribution in each region. Using forecasted oceanographic conditions for the year 2075 and a regional classification model, we projected assemblage distributions in the southernmost bioregion (Scotian Shelf-Bay of Fundy) under a high emissions climate scenario (RCP 8.5). Range expansions to the northeast are projected for assemblages associated with warmer and shallower waters of the Western Scotian Shelf over the 21st century as thermal habitat on the relatively cooler Eastern Scotian Shelf becomes more favorable. Community-level modeling provides a biotic-informed approach for identifying broadscale ecological structure required for the design and management of ecologically coherent, representative, well-connected networks of Marine Protected Areas. When combined with oceanographic forecasts, this modeling approach provides a spatial tool for assessing sensitivity and resilience to climate change, which can improve conservation planning, monitoring, and adaptive management.
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Affiliation(s)
- John M. O'Brien
- Bedford Institute of OceanographyFisheries and Oceans CanadaDartmouthNova ScotiaCanada
| | - Ryan R. E. Stanley
- Bedford Institute of OceanographyFisheries and Oceans CanadaDartmouthNova ScotiaCanada
| | - Nicholas W. Jeffery
- Bedford Institute of OceanographyFisheries and Oceans CanadaDartmouthNova ScotiaCanada
| | - Susan G. Heaslip
- Bedford Institute of OceanographyFisheries and Oceans CanadaDartmouthNova ScotiaCanada
| | - Claudio DiBacco
- Bedford Institute of OceanographyFisheries and Oceans CanadaDartmouthNova ScotiaCanada
| | - Zeliang Wang
- Bedford Institute of OceanographyFisheries and Oceans CanadaDartmouthNova ScotiaCanada
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238
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Meerhoff E, Combes V, Matano R, Barrier N, Franco B, Piola A, Hernández-Vaca F, Defeo O. Large-scale connectivity of the sandy beach clam Mesodesma mactroides along the Atlantic coast of South America, and climate change implications. MARINE ENVIRONMENTAL RESEARCH 2022; 176:105591. [PMID: 35259643 DOI: 10.1016/j.marenvres.2022.105591] [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: 08/09/2021] [Revised: 02/16/2022] [Accepted: 02/27/2022] [Indexed: 06/14/2023]
Abstract
The yellow clam Mesodesma mactroides is a cool-water species that typifies sandy beaches of the Southwestern Atlantic Ocean (SAO), which embraces one of the strongest ocean warming hotspots. The region is influenced by the Rio de la Plata (RdlP), which represents a zoogeographic barrier that restricts its larval exchange. We investigated yellow clam larval connectivity patterns using an individual based model (IBM). The IBM combined outputs from a 3D hydrodynamic model with a clam submodel that considered salinity- and temperature-dependent mortality for the planktonic larvae. Connectivity across the RdlP estuary occurred only for larvae released in spring during a strong La Niña event. Mortality due to freshwater precluded larval transport across the RdlP, whereas larval mortality induced by warmer waters reduced connectivity, leading to self-recruitment in most areas. Warming acceleration in this hotspot could further restrict larval connectivity between populations in the SAO, with conservation implications for this threatened species.
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Affiliation(s)
- Erika Meerhoff
- Laboratorio de Ciencias del Mar (UNDECIMAR), Facultad de Ciencias, Universidad de la República, Iguá 4225, 11400, Montevideo, Uruguay.
| | - Vincent Combes
- College of Earth and Atmospheric Sciences, Oregon State University, Corvallis, OR, 7331- 5503, USA
| | - Ricardo Matano
- College of Earth and Atmospheric Sciences, Oregon State University, Corvallis, OR, 7331- 5503, USA
| | | | - Barbara Franco
- Instituto Franco-Argentino para el Estudio del Clima y sus Impactos (UMI 3351-IFAECI)/CNRS-IRD-CONICET-UBA, C1428EGA, Buenos Aires, Argentina; Centro de Investigaciones del Mar y la Atmósfera (CIMA)/CONICET-UBA, C1428EGA, Buenos Aires, Argentina
| | - Alberto Piola
- Instituto Franco-Argentino para el Estudio del Clima y sus Impactos (UMI 3351-IFAECI)/CNRS-IRD-CONICET-UBA, C1428EGA, Buenos Aires, Argentina; Departamento de Oceanografía, Servicio de Hidrografía Naval (SHN), C1270ABV, Ciudad Autónoma de Buenos Aires, Argentina; Departamento de Ciencias de la Atmósfera y los Océanos, Universidad de Buenos Aires, C1428EGA, Ciudad Autónoma de Buenos Aires, Argentina
| | - Freddy Hernández-Vaca
- División El Niño y Clima Oceánico, Dirección de Oceanografía Naval, Instituto Oceanográfico y Antártico de la Armada del Ecuador, Guayaquil, Ecuador
| | - Omar Defeo
- Laboratorio de Ciencias del Mar (UNDECIMAR), Facultad de Ciencias, Universidad de la República, Iguá 4225, 11400, Montevideo, Uruguay.
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239
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Couton M, Lévêque L, Daguin-Thiébaut C, Comtet T, Viard F. Water eDNA metabarcoding is effective in detecting non-native species in marinas, but detection errors still hinder its use for passive monitoring. BIOFOULING 2022; 38:367-383. [PMID: 35575060 DOI: 10.1080/08927014.2022.2075739] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 04/21/2022] [Accepted: 05/05/2022] [Indexed: 06/15/2023]
Abstract
Marinas are high-priority targets for marine non-indigenous species (NIS), where they compose a large portion of the biofouling communities. The practicality of water samples collection makes environmental DNA (eDNA) metabarcoding an interesting tool for routine NIS surveys. Here the effectiveness of water-eDNA-metabarcoding to identify biofouling NIS, in 10 marinas from western France, was examined. Morphological identification of specimens collected in quadrats brought out 18 sessile benthic NIS beneath floating pontoons. Water-eDNA-metabarcoding detected two thirds of them, failing to detect important NIS. However, sampling and bioinformatics filtering steps can be optimized to identify more species. In addition, this method allowed the detection of additional NIS from neighboring micro-habitats. Caution should, however, be taken when reporting putative novel NIS, because of errors in species assignment. This work highlights that water-eDNA-metabarcoding is effective for active (targeted) NIS surveys and could be significantly improved for its further use in marine NIS passive surveys.
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Affiliation(s)
- Marjorie Couton
- Sorbonne Université, CNRS, UMR 7144, Station Biologique de Roscoff, Place Georges Teissier, Roscoff, France
| | - Laurent Lévêque
- Sorbonne Université, CNRS, FR 2424, Station Biologique de Roscoff, Place Georges Teissier, Roscoff, France
| | - Claire Daguin-Thiébaut
- Sorbonne Université, CNRS, UMR 7144, Station Biologique de Roscoff, Place Georges Teissier, Roscoff, France
| | - Thierry Comtet
- Sorbonne Université, CNRS, UMR 7144, Station Biologique de Roscoff, Place Georges Teissier, Roscoff, France
| | - Frédérique Viard
- Sorbonne Université, CNRS, UMR 7144, Station Biologique de Roscoff, Place Georges Teissier, Roscoff, France
- ISEM, Univ Montpellier, CNRS, EPHE, IRD, Montpellier, France
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240
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Aguilar A, Borrell A. Unreported catches, impact of whaling and current status of blue whales in the South European Atlantic Shelf. Sci Rep 2022; 12:5491. [PMID: 35361884 PMCID: PMC8971400 DOI: 10.1038/s41598-022-09570-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Accepted: 03/25/2022] [Indexed: 11/22/2022] Open
Abstract
The North Atlantic blue whale was depleted by modern whaling and it is still considered to be highly endangered. Despite its protection in 1954, catches continued in the South European Atlantic Shelf (SEAS) region and immediately adjacent waters until 1979. We compiled catches and investigate abundance trends in the region using original data from whaling (1921–1985) and scientific surveys around the last years of exploitation (1981–1987). The struck and lost rate was estimated at 3.2% for sperm whales and 2.3% for baleen whales. The compiled records include 60 catches, with an additional 1–2 blue whales likely struck and lost. From these, 29 individuals had been correctly reported as blue whales but 31 were mislabelled as fin whales. After correcting for loss rates, the number of blue whales killed in the region was estimated at 61 in 55 years (1.12 individuals/year). The data from the 1950s shows some oversized fin whales but it is unclear whether they are due to an incorrect reporting of species or to incorrect measurements, so it cannot be discarded that the actual number of blue whales caught was slightly higher than estimated. Mean body length of reported blue whales was lower than in higher latitudes of the North Atlantic, probably reflecting geographical stratification with higher proportion of immatures in the SEAS. The ratio between catches or sightings of blue whales and those of fin whales was 5.9% in the southern part of the SEAS previous to exploitation, it declined to 0.02–0.18% in the 1920s, and increased thereafter up to 1.6% in the 1980–1990s. Taking as reference the population size of fin whales in the SEAS, that of blue whales at the end of the 1980s can be guessed to be at ca337-497 individuals. Considering accepted population estimates in other areas as well as the observed rates of increase, current abundance is thought to be over a thousand whales in the SEAs and at in the order of 4000–5000 individuals for the whole eastern North Atlantic basin.
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Affiliation(s)
- Alex Aguilar
- Department of Evolutionary Biology, Ecology and Environmental Sciences, Faculty of Biology, Universitat de Barcelona, Av. Diagonal, 643, 08028, Barcelona, Spain. .,Institut de Recerca de la Biodiversitat (IRBio), Universitat de Barcelona, 08028, Barcelona, Spain.
| | - Asunción Borrell
- Department of Evolutionary Biology, Ecology and Environmental Sciences, Faculty of Biology, Universitat de Barcelona, Av. Diagonal, 643, 08028, Barcelona, Spain.,Institut de Recerca de la Biodiversitat (IRBio), Universitat de Barcelona, 08028, Barcelona, Spain
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241
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Restoration of Marine Sponges—What Can We Learn from over a Century of Experimental Cultivation? WATER 2022. [DOI: 10.3390/w14071055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Marine sponges are the driver of many critical biological processes throughout various ecosystems. But anthropogenic and environmental pressures are rapidly compromising the diversity and abundance of Porifera worldwide. In our study, we reviewed the main experiences made on their cultivation to provide a roadmap of the best methodologies that could be applied to restore coastal sponge populations. We synthesized the results of experimental trials between 1950 and today to facilitate information on promising methods and materials. We detected a strong geographical imbalance between different ecoregions, as well as a shift of scientific effort from the investigation of “bath sponge” mariculture towards the rearing of bioactive compounds from sponges. Although sponge cultivation is arguably highly species-dependent, we further found that skeletal consistency in combination with taxonomy may be used to decide on appropriate techniques for future restoration initiatives.
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242
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Changes in Mangrove Carbon Stocks and Exposure to Sea Level Rise (SLR) under Future Climate Scenarios. SUSTAINABILITY 2022. [DOI: 10.3390/su14073873] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Mangrove ecosystems are threatened by a variety of anthropogenic changes, including climate change. The main aim of this research is to quantify the spatial variation in the different mangrove carbon stocks, aboveground carbon (AGC), belowground carbon (BGC), and soil carbon (SOC), under future climate scenarios. Additionally, we sought to identify the magnitude of sea-level rise (SLR) exposure with the view of identifying the mangrove regions most likely to face elevated inundation. Different representative concentration pathways (RCPs) ranging from the most optimistic (RCP 2.6) to medium emissions (RCP 4.5) and the most pessimistic (RCP 8.5) were considered for 2070. We used the Marine Ecoregions of the World (MEOW), a biogeographical classification of coastal ecosystems, to quantify the variation in future carbon stocks at a regional scale and identify areas of potential carbon stock losses and gains. Here, we showed that the mangroves of Central and Western Indo-Pacific islands (Andamans, Papua New Guinea, and Vanuatu), the west African coast, and northeastern South America will be the worst hit and are projected to affect all three carbon stocks under all future scenarios. For instance, the Andaman ecoregion is projected to have an 11–25% decline in SOC accumulation, while the Western Indo-Pacific realm is projected to undergo the sharpest declines, ranging from 10% to 12% under all three scenarios. Examples of these areas are those in Amazonia and the eastern part of South Asia (such as in the Northern Bay of Bengal ecoregion). Based on these findings, conservation management of mangroves can be conducted.
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243
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Surveys of the Angolan coast uncover the largest olive ridley sea turtle nesting population in the Atlantic and the largest non-arribada population globally. ORYX 2022. [DOI: 10.1017/s003060532100065x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Abstract
Knowledge of the abundance and distribution of species is important for designing and prioritizing conservation and management activities. Despite numerous existing studies on the distribution and status of sea turtles, we still lack knowledge about certain populations, especially in Angola, which is considered to be the southernmost range of nesting sea turtles in the eastern Atlantic. This study provides an overview of the status, size and distribution of the olive ridley sea turtle Lepidochelys olivacea population nesting along the coast of Angola, and its relevance in the context of other olive ridley turtle nesting populations in the Atlantic. Aerial and ground surveys were conducted along 1,410 km of Angolan coastline and daily beach monitoring over 53.9 km of seven permanent study sites at a range of latitudes during 2011–2020. Angola hosts the largest olive ridley turtle nesting population in the Atlantic, and the largest non-arribada population globally. Although the population appeared relatively stable, the pressures from various threats on land (e.g. consumption of turtles and eggs) and at sea (captures in fishing gear) necessitate the development of a comprehensive management plan, improved and strengthened legislation and law enforcement, and a cohesive approach to conserving all sea turtle species in Angola.
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Medina-Valmaseda AE, Blanchon P, Alvarez-Filip L, Pérez-Cervantes E. Geomorphically controlled coral distribution in degraded shallow reefs of the Western Caribbean. PeerJ 2022; 10:e12590. [PMID: 35310164 PMCID: PMC8929170 DOI: 10.7717/peerj.12590] [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: 04/15/2021] [Accepted: 11/12/2021] [Indexed: 01/06/2023] Open
Abstract
The development of coral reefs results from the interaction between ecological and geological processes in space and time. Their difference in scale, however, makes it difficult to detect the impact of ecological changes on geological reef development. The decline of coral cover over the last 50 years, for example, has dramatically impaired the function of ecological processes on reefs. Yet given the limited-resolution of their Holocene record, it is uncertain how this will impact accretion and structural integrity over longer timescales. In addition, reports of this ecological decline have focused on intrinsic parameters such as coral cover and colony size at the expense of extrinsic ones such as geomorphic and environmental variables. Despite these problems, several attempts have been made to predict the long-term accretion status of reefs based entirely on the contemporary health status of benthic communities. Here we explore how this ecological decline is represented within the reef geomorphic structure, which represents the long-term expression of reef development. Using a detailed geomorphic zonation scheme, we analyze the distribution and biodiversity of reef-building corals in fringing-reef systems of the Mesoamerican Reef tract. We find a depth-related pattern in community structure which shows that the relative species distribution between geomorphic zones is statistically different. Despite these differences, contemporary coral assemblages in all zones are dominated by the same group of pioneer generalist species. These findings imply that first, coral species distribution is still controlled by extrinsic processes that generate the geomorphic zonation; second, that coral biodiversity still reflects species zonation patterns reported by early studies; and third that dominance of pioneer species implies that modern coral assemblages are in a prolonged post-disturbance adjustment stage. In conclusion, any accurate assessment of the future viability of reefs requires a consideration of the geomorphic context or risks miscalculating the impact of ecological changes on long-term reef development.
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Affiliation(s)
- Alexis Enrique Medina-Valmaseda
- Posgrado en Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México, Mexico,Reef Geoscience Group, Unidad Académica de Sistemas Arrecifales Instituto de Ciencias de Mar y Limnología, Universidad Nacional Autónoma de México, Puerto Morelos, Quintana Roo, Mexico
| | - Paul Blanchon
- Reef Geoscience Group, Unidad Académica de Sistemas Arrecifales Instituto de Ciencias de Mar y Limnología, Universidad Nacional Autónoma de México, Puerto Morelos, Quintana Roo, Mexico
| | - Lorenzo Alvarez-Filip
- Biodiversity and Reef Conservation Laboratory, Unidad Académica de Sistemas Arrecifales Instituto de Ciencias de Mar y Limnología, Universidad Nacional Autónoma de México, Puerto Morelos, Quintana Roo, Mexico
| | - Esmeralda Pérez-Cervantes
- Biodiversity and Reef Conservation Laboratory, Unidad Académica de Sistemas Arrecifales Instituto de Ciencias de Mar y Limnología, Universidad Nacional Autónoma de México, Puerto Morelos, Quintana Roo, Mexico
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Simon A, Adamczyk E, Basman A, Chu J, Gartner H, Fletcher K, Gibbs C, Gibbs D, Gilmore S, Harbo R, Harris L, Humphrey E, Lamb A, Lambert P, McDaniel N, Scott J, Starzomski B. Toward an atlas of Salish Sea biodiversity: the flora and fauna of Galiano Island, British Columbia, Canada. Part I. Marine zoology. Biodivers Data J 2022; 10:e76050. [PMID: 35437414 PMCID: PMC8930920 DOI: 10.3897/bdj.10.e76050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Accepted: 01/21/2022] [Indexed: 11/16/2022] Open
Abstract
Background Based on records dating from 1859 to 2021, we provide an overview of the marine animal diversity reported for Galiano Island, British Columbia, Canada. More than 650 taxa are represented by 20,000 species occurrence records in this curated dataset, which includes dive records documented through the Pacific Marine Life Surveys, museum voucher specimens, ecological data and crowd-sourced observations from the BC Cetacean Sightings Network and iNaturalist. New information We describe Galiano Island's marine animal diversity in relation to the Salish Sea's overall biodiversity and quantify the proportional contributions of different types of sampling effort to our current local knowledge. Overviews are provided for each taxonomic group in a format intended to be accessible to amateur naturalists interested in furthering research into the region's marine biodiversity. In summary, we find that the Pacific Marine Life Surveys, a regional community science diving initiative, account for 60% of novel records reported for Galiano Island. Voucher specimens account for 19% and crowd-sourced biodiversity data 18% of novel records, respectively, with the remaining 3% of reports coming from other sources. These findings shed light on the complementarity of different types of sampling effort and demonstrate the potential for community science to contribute to the global biodiversity research community. We present a biodiversity informatics framework that is designed to enable these practices by supporting collaboration among researchers and communities in the collection, curation and dissemination of biodiversity data.
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Hamm T, Barkhau J, Gabriel AL, Gottschalck LL, Greulich M, Houiller D, Kawata U, Tump LN, Leon AS, Vasconcelos P, Yap V, Almeida C, Chase Z, Hurd CL, Lavers JL, Nakaoka M, Rilov G, Thiel M, Wright JT, Lenz M. Plastic and natural inorganic microparticles do not differ in their effects on adult mussels (Mytilidae) from different geographic regions. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 811:151740. [PMID: 34871693 DOI: 10.1016/j.scitotenv.2021.151740] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 11/08/2021] [Accepted: 11/13/2021] [Indexed: 06/13/2023]
Abstract
Microplastics are ubiquitous in the marine environment and studies on their effects on benthic filter feeders at least partly revealed a negative influence. However, it is still unclear whether the effects of microplastics differ from those of natural suspended microparticles, which constitute a common stressor in many coastal environments. We present a series of experiments that compared the effects of six-week exposures of marine mussels to two types of natural particles (red clay and diatom shells) to two types of plastic particles (Polymethyl Methacrylate and Polyvinyl Chloride). Mussels of the family Mytilidae from temperate regions (Japan, Chile, Tasmania) through subtropical (Israel) to tropical environments (Cabo Verde) were exposed to concentrations of 1.5 mg/L, 15 mg/L and 150 mg/L of the respective microparticles. At the end of this period, we found significant effects of suspended particles on respiration rate, byssus production and condition index of the animals. There was no significant effect on clearance rate and survival. Surprisingly, we observed only small differences between the effects of the different types of particles, which suggests that the mussels were generally equally robust towards exposure to variable concentrations of suspended solids regardless of whether they were natural or plastic. We conclude, that microplastics and suspended solids elicit similar effects on the tested response variables, and that both types of microparticles mainly cause acute responses rather than more persistent carry-over effects.
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Affiliation(s)
- Thea Hamm
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Wischhofstrasse 1-3, 24138 Kiel, Germany.
| | - Jonas Barkhau
- University of Rostock, Faculty of Biological Sciences, Department of Marine Biology, Albert-Einstein-Straße 3, 18059 Rostock, Germany
| | - Anna-Louise Gabriel
- Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl von Ossietzky University Oldenburg, Carl von Ossietzky Strasse 9-11, 26111 Oldenburg, Germany
| | - Leo L Gottschalck
- University of Rostock, Faculty of Biological Sciences, Department of Marine Biology, Albert-Einstein-Straße 3, 18059 Rostock, Germany
| | | | - Daphne Houiller
- Faculty of Biological Sciences, Goethe University Frankfurt, Max-von-Laue-Straße 13, 60438 Frankfurt am Main, Germany
| | - Uki Kawata
- School of Science, Hokkaido University, Aikappu 1, Akkeshi, Hokkaido 088-1113, Japan
| | - Lukas Novaes Tump
- Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl von Ossietzky University Oldenburg, Carl von Ossietzky Strasse 9-11, 26111 Oldenburg, Germany
| | - Abril Sanchez Leon
- Departamento de Biología Marina, Facultad de Ciencias del Mar, Universidad Católica del Norte, Coquimbo, Chile
| | | | - Vincent Yap
- Institute for Marine and Antarctic Studies, University of Tasmania, 20 Castray Esplanade, Battery Point, Tasmania 7004, Australia
| | | | - Zanna Chase
- Institute for Marine and Antarctic Studies, University of Tasmania, 20 Castray Esplanade, Battery Point, Tasmania 7004, Australia
| | - Catriona L Hurd
- Institute for Marine and Antarctic Studies, University of Tasmania, 20 Castray Esplanade, Battery Point, Tasmania 7004, Australia
| | - Jennifer L Lavers
- Institute for Marine and Antarctic Studies, University of Tasmania, 20 Castray Esplanade, Battery Point, Tasmania 7004, Australia
| | - Masahiro Nakaoka
- Akkeshi Marine Station, Field Science Center for Northern Biosphere, Hokkaido University, Aikappu 1, Akkeshi, Hokkaido 088-1113, Japan
| | - Gil Rilov
- Israel Oceanographic and Limnological Research, National Institute of Oceanography, P.O. Box 8030, Haifa 31080, Israel
| | - Martin Thiel
- Departamento de Biología Marina, Facultad de Ciencias del Mar, Universidad Católica del Norte, Coquimbo, Chile; Millennium Nucleus of Ecology and Sustainable Management of Oceanic Island (ESMOI), Coquimbo, Chile; Centro de Estudios Avanzados en Zonas Áridas (CEAZA), Avenida Ossandón 877, Coquimbo, Chile
| | - Jeffrey T Wright
- Institute for Marine and Antarctic Studies, University of Tasmania, 20 Castray Esplanade, Battery Point, Tasmania 7004, Australia
| | - Mark Lenz
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Wischhofstrasse 1-3, 24138 Kiel, Germany
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Roveta C, Marrocco T, Calcinai B, Pulido Mantas T, Pica D, Valisano L, Puce S. Unravelling the sponge diversity of the Tuscan Archipelago National Park (Tyrrhenian Sea, Italy). THE EUROPEAN ZOOLOGICAL JOURNAL 2022. [DOI: 10.1080/24750263.2022.2042406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Affiliation(s)
- C. Roveta
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, Ancona, Italy
| | - T. Marrocco
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, Ancona, Italy
| | - B. Calcinai
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, Ancona, Italy
| | - T. Pulido Mantas
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, Ancona, Italy
| | - D. Pica
- Department of Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, Calabria Marine Centre, Amendolara, Italy
| | - L. Valisano
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, Ancona, Italy
| | - S. Puce
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, Ancona, Italy
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248
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Montano S, Dehnert I, Seveso D, Maggioni D, Montalbetti E, Strona G, Siena F, Amir H, Antoine A, Marino‐Ramirez C, Saponari L, Shah NJ, Azcarate Molina R, Alegria Ortega A, Galli P, Montoya‐Maya PH. Effects of the COVID-19 lockdowns on the management of coral restoration projects. Restor Ecol 2022; 30:e13646. [PMID: 35603134 PMCID: PMC9115428 DOI: 10.1111/rec.13646] [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: 08/07/2021] [Revised: 01/15/2022] [Accepted: 02/08/2022] [Indexed: 11/29/2022]
Abstract
Coral restoration initiatives are gaining significant momentum in a global effort to enhance the recovery of degraded coral reefs. However, the implementation and upkeep of coral nurseries are particularly demanding, so that unforeseen breaks in maintenance operations might jeopardize well-established projects. In the last 2 years, the COVID-19 pandemic has resulted in a temporary yet prolonged abandonment of several coral gardening infrastructures worldwide, including remote localities. Here we provide a first assessment of the potential impacts of monitoring and maintenance breakdown in a suite of coral restoration projects (based on floating rope nurseries) in Colombia, Seychelles, and Maldives. Our study comprises nine nurseries from six locations, hosting a total of 3,554 fragments belonging to three coral genera, that were left unsupervised for a period spanning from 29 to 61 weeks. Floating nursery structures experienced various levels of damage, and total fragment survival spanned from 40 to 95% among projects, with Pocillopora showing the highest survival rate in all locations present. Overall, our study shows that, under certain conditions, abandoned coral nurseries can remain functional for several months without suffering critical failure from biofouling and hydrodynamism. Still, even where gardening infrastructures were only marginally affected, the unavoidable interruptions in data collection have slowed down ongoing project progress, diminishing previous investments and reducing future funding opportunities. These results highlight the need to increase the resilience and self-sufficiency of coral restoration projects, so that the next global lockdown will not further shrink the increasing efforts to prevent coral reefs from disappearing.
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Affiliation(s)
- Simone Montano
- Department of Earth and Environmental Sciences (DISAT)University of Milan – BicoccaPiazza della Scienza, MilanItaly
- MaRHE Center (Marine Research and High Education Center)Magoodhoo Island, Faafu AtollRepublic of Maldives
| | - Inga Dehnert
- Department of Earth and Environmental Sciences (DISAT)University of Milan – BicoccaPiazza della Scienza, MilanItaly
- MaRHE Center (Marine Research and High Education Center)Magoodhoo Island, Faafu AtollRepublic of Maldives
| | - Davide Seveso
- Department of Earth and Environmental Sciences (DISAT)University of Milan – BicoccaPiazza della Scienza, MilanItaly
- MaRHE Center (Marine Research and High Education Center)Magoodhoo Island, Faafu AtollRepublic of Maldives
| | - Davide Maggioni
- Department of Earth and Environmental Sciences (DISAT)University of Milan – BicoccaPiazza della Scienza, MilanItaly
- MaRHE Center (Marine Research and High Education Center)Magoodhoo Island, Faafu AtollRepublic of Maldives
| | - Enrico Montalbetti
- Department of Earth and Environmental Sciences (DISAT)University of Milan – BicoccaPiazza della Scienza, MilanItaly
- MaRHE Center (Marine Research and High Education Center)Magoodhoo Island, Faafu AtollRepublic of Maldives
| | - Giovanni Strona
- Faculty of Biological and Environmental Sciences, Organismal and Evolutionary Biology Research ProgrammeUniversity of HelsinkiHelsinkiFinland
| | - Federica Siena
- Department of Earth and Environmental Sciences (DISAT)University of Milan – BicoccaPiazza della Scienza, MilanItaly
- MaRHE Center (Marine Research and High Education Center)Magoodhoo Island, Faafu AtollRepublic of Maldives
| | - Hana Amir
- Maldives Marine Research InstituteH. White Waves, Moonlight HigunK. Male’Republic of Maldives
| | - Athina Antoine
- Nature SeychellesThe Centre for Environment & Education Roche CaimanMaheRepublic of Seychelles
| | - Camila Marino‐Ramirez
- Nature SeychellesThe Centre for Environment & Education Roche CaimanMaheRepublic of Seychelles
| | - Luca Saponari
- Nature SeychellesThe Centre for Environment & Education Roche CaimanMaheRepublic of Seychelles
| | - Nirmal J. Shah
- Nature SeychellesThe Centre for Environment & Education Roche CaimanMaheRepublic of Seychelles
| | - Ruben Azcarate Molina
- Corporación para el Desarrollo Sostenible del Archipiélago De San AndrésProvidencia y Santa Catalina (CORALINA)San AndrésColombia
| | | | - Paolo Galli
- Department of Earth and Environmental Sciences (DISAT)University of Milan – BicoccaPiazza della Scienza, MilanItaly
- MaRHE Center (Marine Research and High Education Center)Magoodhoo Island, Faafu AtollRepublic of Maldives
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249
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An Analysis of Adriatic Ichthyofauna—Ecology, Zoogeography, and Conservation Status. FISHES 2022. [DOI: 10.3390/fishes7020058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The paper presents an analysis of biogeographic and habitat distribution patterns, and the conservation status data of Adriatic fishes, based on the last published checklist and evidence-based critical analyses of species presence. The total number of species recorded in the Adriatic is 449. The Adriatic has 58.8% of Mediterranean species richness, 76.1% of its families, and 87.8% of its orders. Among species discovered in the Adriatic after 2010, twelve species were attributed to biological invasion, mostly Atlantic immigrants or alien species, and ten species were attributed to improved research on the native ichthyofauna of the Adriatic area. About 58% of species are native species of Atlanto-Mediterranean origin, 21% are native species of wider global occurrence, 15% are Mediterranean or Mediterranean and Black Sea endemics and 5% originated outside Mediterranean Sea. The majority of species inhabit the benthic environment (71.9%), while others occur in the pelagic environment (20.7%) or are euryhaline (7.3%). The benthic littoral species are the most numerous Adriatic fishes, representing 40% of all species richness, whereas pelagic fishes are mainly eurybathic or epipelagic; only 3.6% of species are deep pelagic species. A Red Book of marine fishes of the Adriatic Sea is urgently needed to assess their conservation status, covering the entire Adriatic Sea and reviewing all fish species to assess their conservation status.
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250
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Reverter M, Helber SB, Rohde S, de Goeij JM, Schupp PJ. Coral reef benthic community changes in the Anthropocene: Biogeographic heterogeneity, overlooked configurations, and methodology. GLOBAL CHANGE BIOLOGY 2022; 28:1956-1971. [PMID: 34951504 DOI: 10.1111/gcb.16034] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 12/04/2021] [Accepted: 12/07/2021] [Indexed: 06/14/2023]
Abstract
Non-random community changes are becoming more frequent in many ecosystems. In coral reefs, changes towards communities dominated by other than hard corals are increasing in frequency, with severe impacts on ecosystem functioning and provision of ecosystem services. Although new research suggests that a variety of alternative communities (i.e. not dominated by hard corals) exist, knowledge on the global diversity and functioning of alternative coral reef benthic communities, especially those not dominated by algae, remains scattered. In this systematic review and meta-analysis of 523 articles, we analyse the different coral reef benthic community changes reported to date and discuss the advantages and limitations of the methods used to study these changes. Furthermore, we used field cover data (1116 reefs from the ReefCheck database) to explore the biogeographic and latitudinal patterns in dominant benthic organisms. We found a mismatch between literature focus on coral-algal changes (over half of the studies analysed) and observed global natural patterns. We identified strong biogeographic patterns, with the largest and most biodiverse biogeographic regions (Western and Central Indo-Pacific) presenting previously overlooked soft-coral-dominated communities as the most abundant alternative community. Finally, we discuss the potential biases associated with methods that overlook ecologically important cryptobenthic communities and the potential of new technological advances in improving monitoring efforts. As coral reef communities inevitably and swiftly change under changing ocean conditions, there is an urgent need to better understand the distribution, dynamics as well as the ecological and societal impacts of these new communities.
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Affiliation(s)
- Miriam Reverter
- Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl von Ossietzky University Oldenburg, Wilhelmshaven, Germany
| | - Stephanie B Helber
- Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl von Ossietzky University Oldenburg, Wilhelmshaven, Germany
| | - Sven Rohde
- Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl von Ossietzky University Oldenburg, Wilhelmshaven, Germany
| | - Jasper M de Goeij
- Department of Freshwater and Marine Ecology (FAME), Institute for Biodiversity and Ecosystem Dynamics (IBED), University of Amsterdam, Amsterdam, The Netherlands
| | - Peter J Schupp
- Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl von Ossietzky University Oldenburg, Wilhelmshaven, Germany
- Helmholtz Institute for Functional Marine Biodiversity at the University of Oldenburg (HIFMB), Oldenburg, Germany
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