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Lima ALR, Macedo Pereira C, Schiavetti A, Hackradt CW, Félix-Hackradt FC. Multiple events determine the distribution of fishes' early life stages in the Abrolhos Bank, Southwestern Atlantic. MARINE ENVIRONMENTAL RESEARCH 2024; 199:106575. [PMID: 38843654 DOI: 10.1016/j.marenvres.2024.106575] [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: 12/04/2023] [Revised: 05/06/2024] [Accepted: 05/31/2024] [Indexed: 07/14/2024]
Abstract
Fluctuations in reef fish settlement and recruitment significantly impact local population dynamics and adult population size. We use light traps to evaluate reef fish settlement in inshore and offshore reefs in the Abrolhos Bank, in addition to the spatio-temporal distribution patterns, and environmental variables' influence. Data were collected from inshore and offshore reefs, and statistical analyses, including GLMs, PERMANOVA and nMDS, aimed to understand spatial-temporal species distribution patterns and the relationship between environmental variables. Results indicate greater species abundance and diversity offshore, influenced by winds, tides, and distance from shore, explaining 50% of larval patterns and highlighting the importance of spatial-temporal variations in early-life reef fish assemblages. However, several factors, including habitat type, quality, complexity, seascape configuration, and MPA location, may influence these patterns. Additionally, we provide evidence that commercially important species like Lutjanids use Abrolhos reef areas as nursery grounds.
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Affiliation(s)
- André L R Lima
- Marine Ecology and Conservation Lab. Centre for Environmental Science, Universidade Federal Do Sul da Bahia, Campus Sosígenes Costa, Rod BR 367 Km 10, 45810-000, Porto Seguro, Bahia, Brazil; Programa de Pós Graduação Em Ecologia e Conservação da Biodiversidade, Universidade Estadual de Santa Cruz, Rod Jorge Amado Km 16, Bairro Salobrinho, 45662-900, Ilhéus, Bahia, Brazil.
| | - Cristiano Macedo Pereira
- Marine Ecology and Conservation Lab. Centre for Environmental Science, Universidade Federal Do Sul da Bahia, Campus Sosígenes Costa, Rod BR 367 Km 10, 45810-000, Porto Seguro, Bahia, Brazil
| | - Alexandre Schiavetti
- Ethnoconservation and Protected Areas Lab. Departamento de Ciências Agrárias e Ambientais (DCAA), Universidade Estadual de Santa Cruz, BA, Brazil; Research Associate CESIMAR, CENPAT, Puerto Madryn, Chubut, Argentina
| | - Carlos Werner Hackradt
- Marine Ecology and Conservation Lab. Centre for Environmental Science, Universidade Federal Do Sul da Bahia, Campus Sosígenes Costa, Rod BR 367 Km 10, 45810-000, Porto Seguro, Bahia, Brazil
| | - Fabiana Cézar Félix-Hackradt
- Marine Ecology and Conservation Lab. Centre for Environmental Science, Universidade Federal Do Sul da Bahia, Campus Sosígenes Costa, Rod BR 367 Km 10, 45810-000, Porto Seguro, Bahia, Brazil
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2
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Mao J, Burdett HL, Kamenos NA. Efficient carbon recycling between calcification and photosynthesis in red coralline algae. Biol Lett 2024; 20:20230598. [PMID: 38889774 DOI: 10.1098/rsbl.2023.0598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 05/07/2024] [Indexed: 06/20/2024] Open
Abstract
Red coralline algae create abundant, spatially vast, reef ecosystems throughout our coastal oceans with significant ecosystem service provision, but our understanding of their basic physiology is lacking. In particular, the balance and linkages between carbon-producing and carbon-sequestering processes remain poorly constrained, with significant implications for understanding their role in carbon sequestration and storage. Using dual radioisotope tracing, we provide evidence for coupling between photosynthesis (which requires CO2) and calcification (which releases CO2) in the red coralline alga Boreolithothamnion soriferum (previously Lithothamnion soriferum)-a marine ecosystem engineer widely distributed across Atlantic mid-high latitudes. Of the sequestered HCO3 -, 38 ± 22% was deposited as carbonate skeleton while 39 ± 14% was incorporated into organic matter via photosynthesis. Only 38 ± 2% of the sequestered HCO3 - was transformed into CO2, and almost 40% of that was internally recycled as photosynthetic substrate, reducing the net release of carbon to 23 ± 3% of the total uptake. The calcification rate was strongly dependent on photosynthetic substrate production, supporting the presence of photosynthetically enhanced calcification. The efficient carbon-recycling physiology reported here suggests that calcifying algae may not contribute as much to marine CO2 release as is currently assumed, supporting a reassessment of their role in blue carbon accounting.
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Affiliation(s)
- J Mao
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Institute of Marine Microbes and Ecospheres, Xiamen University , Xiamen, People's Republic of China
| | - H L Burdett
- Umeå Marine Sciences Centre, Umeå University , Umeå, Sweden
- Department of Ecology and Environmental Science, Umeå University , Umeå, Sweden
| | - N A Kamenos
- Umeå Marine Sciences Centre, Umeå University , Umeå, Sweden
- Department of Ecology and Environmental Science, Umeå University , Umeå, Sweden
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3
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Lino JB, Laurino IRA, Longo PADS, Santos CSG, Motta FDS, Francini-Filho RB, Pereira-Filho GH. Proxies to detect hotspots of invertebrate biodiversity on rhodolith beds across the Southwestern Atlantic. MARINE ENVIRONMENTAL RESEARCH 2024; 196:106431. [PMID: 38442590 DOI: 10.1016/j.marenvres.2024.106431] [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: 12/07/2023] [Revised: 02/22/2024] [Accepted: 02/27/2024] [Indexed: 03/07/2024]
Abstract
Rhodolith beds are known worldwide to host high biodiversity to several taxa. Despite their importance, few ecological data explored the influence of rhodolith features and environmental variables on associated biodiversity, a gap that has been hampering the mapping of diversity hotspots and priority areas for conservation. In this study, we investigated large-scale spatial variations of rhodolith beds and their associated fauna, using annelid polychaetes as a biological model. We aimed to identify proxies, based on rhodolith features and environmental variables, to detect biodiversity hotspots across Southwestern Atlantic beds, laying the groundwork for mapping priority areas for conservation. With this goal, we sampled a total of 136 rhodolith nodules across seven sites with beds under distinct latitudes, depths, distances from the mainland coast of Brazil, and rhodolith densities. For each nodule sampled, we measured the volume, diameter, and mass of sediment trapped, as well as the attributes of the associated polychaetes (abundance, richness, diversity, and composition). Our results revealed a complex network of collinearities and synergisms between the rhodolith features and the majority of the polychaetes attributes (i.e., abundance, diversity, and composition). Polychaete richness, in contrast, can be explained by the combination of two proxies: (1) rhodolith nodule diameter and (2) distance of the rhodolith bed from the mainland coast. Nearshore rhodolith beds and larger nodules were associated with higher values of richness. Additionally, rhodoliths with a hollow morphology were also associated with higher values of polychaete richness. These results suggest that nearshore rhodolith beds with large and hollow nodules could be priority areas for conservation. However, further multi-taxa studies using our framework are still needed to explore other regions and scales, delineating more comprehensive proxies for predicting ecological patterns of the rhodoliths associated fauna and to identify priorities for conservation across Southwestern Atlantic beds.
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Affiliation(s)
- Jaqueline Barreto Lino
- Laboratório de Ecologia e Conservação Marinha, Instituto do Mar, Universidade Federal de São Paulo, Rua Dr. Carvalho de Mendonça 144, Santos, 110-070, Brazil
| | - Ivan Rodrigo Abrão Laurino
- Laboratório de Ecologia e Conservação Marinha, Instituto do Mar, Universidade Federal de São Paulo, Rua Dr. Carvalho de Mendonça 144, Santos, 110-070, Brazil
| | - Pedro Augusto Dos Santos Longo
- Laboratório de Ecologia e Conservação Marinha, Instituto do Mar, Universidade Federal de São Paulo, Rua Dr. Carvalho de Mendonça 144, Santos, 110-070, Brazil
| | - Cinthya Simone Gomes Santos
- Departamento de Biologia Marinha, Instituto de Biologia, Universidade Federal Fluminense, Rua: Professor Marcos Waldemar de Freitas Reis, s/n, Campus do Gragoatá, Bloco M, Sala 416, São Domingos, Niterói, RJ, CEP 24210-201, Brazil
| | - Fabio Dos Santos Motta
- Laboratório de Ecologia e Conservação Marinha, Instituto do Mar, Universidade Federal de São Paulo, Rua Dr. Carvalho de Mendonça 144, Santos, 110-070, Brazil
| | - Ronaldo B Francini-Filho
- Laboratório de Biodiversidade e Conservação Marinha, Centro de Biologia Marinha, Universidade de São Paulo, São Sebastião, SP, 11612-109, Brazil
| | - Guilherme Henrique Pereira-Filho
- Laboratório de Ecologia e Conservação Marinha, Instituto do Mar, Universidade Federal de São Paulo, Rua Dr. Carvalho de Mendonça 144, Santos, 110-070, Brazil.
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4
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Pérez G, O'Leary BC, Allegri E, Casal G, Cornet CC, de Juan S, Failler P, Fredriksen S, Fonseca C, Furlan E, Gil A, Hawkins JP, Maréchal JP, McCarthy T, Roberts CM, Trégarot E, van der Geest M, Simide R. A conceptual framework to help choose appropriate blue nature-based solutions. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 352:119936. [PMID: 38218164 DOI: 10.1016/j.jenvman.2023.119936] [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: 08/21/2023] [Revised: 11/24/2023] [Accepted: 12/23/2023] [Indexed: 01/15/2024]
Abstract
Biodiversity loss and climate change have severely impacted ecosystems and livelihoods worldwide, compromising access to food and water, increasing disaster risk, and affecting human health globally. Nature-based Solutions (NbS) have gained interest in addressing these global societal challenges. Although much effort has been directed to NbS in urban and terrestrial environments, the implementation of NbS in marine and coastal environments (blue NbS) lags. The lack of a framework to guide decision-makers and practitioners through the initial planning stages appears to be one of the main obstacles to the slow implementation of blue NbS. To address this, we propose an integrated conceptual framework, built from expert knowledge, to inform the selection of the most appropriate blue NbS based on desired intervention objectives and social-ecological context. Our conceptual framework follows a four incremental steps structure: Step 1 aims to identify the societal challenge(s) to address; Step 2 highlights ecosystem services and the underlying biodiversity and ecological functions that could contribute to confronting the societal challenge(s); Step 3 identify the specific environmental context the intervention needs to be set within (e.g. the spatial scale the intervention will operate within, the ecosystem's vulnerability to stressors, and its ecological condition); and Step 4 provides a selection of potential blue NbS interventions that would help address the targeted societal challenge(s) considering the context defined through Step 3. Designed to maintain, enhance, recover, rehabilitate, or create ecosystem services by supporting biodiversity, the blue NbS intervention portfolio includes marine protection (i.e., fully, highly, lightly, and minimally protected areas), restorative activities (i.e., active, passive, and partial restoration; rehabilitation of ecological function and ecosystem creation), and other management measures (i.e., implementation and enforcement of regulation). Ultimately, our conceptual framework guides decision-makers toward a versatile portfolio of interventions that cater to the specific needs of each ecosystem rather than imposing a rigid, one-size-fits-all model. In the future, this framework needs to integrate socio-economic considerations more comprehensively and be kept up-to-date by including the latest scientific information.
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Affiliation(s)
| | - Bethan C O'Leary
- Department of Ecology & Conservation, Faculty of Environment, Science and Economy, University of Exeter, Penryn Campus, Penryn, TR10 9FE, United Kingdom; Department of Environment and Geography, University of York, York, YO10 5NG, United Kingdom
| | - Elena Allegri
- Centro Euro-Mediterraneo sui Cambiamenti Climatici and Università Ca' Foscari Venezia, CMCC@Ca'Foscari - Edificio Porta dell'Innovazione, 2nd Floor - Via della Libertà, 12, 30175, Venice, Italy; Department of Environmental Sciences, Informatics and Statistics, University Ca' Foscari Venice, I-30170, Venice, Italy
| | - Gema Casal
- National Centre for Geocomputation, Maynooth University, Co. Kildare, Maynooth, Ireland
| | - Cindy C Cornet
- Centre for Blue Governance, Portsmouth Business School, University of Portsmouth, Portsmouth, PO1 3DE, United Kingdom
| | - Silvia de Juan
- The Mediterranean Institute for Advanced Studies, IMEDEA (UIB-CSIC), C/Miquel Marques 21, Esporles, Balearic Islands, Spain
| | - Pierre Failler
- Centre for Blue Governance, Portsmouth Business School, University of Portsmouth, Portsmouth, PO1 3DE, United Kingdom
| | - Stein Fredriksen
- Institute of Marine Research, Nye Flødevigveien 20, 4817, His, Norway; University of Oslo, Department of Biosciences, PO Box 1066 Blindern, 0316, Oslo, Norway
| | - Catarina Fonseca
- cE3c - Centre for Ecology, Evolution and Environmental Changes, Azorean Biodiversity Group, CHANGE - Global Change and Sustainability Institute, Faculty of Sciences and Technology, University of the Azores, 9500-321, Ponta Delgada, Portugal; MARE - Marine and Environmental Sciences Centre/ARNET - Aquatic Research Network, Faculdade de Ciências, Universidade de Lisboa, Portugal
| | - Elisa Furlan
- Centro Euro-Mediterraneo sui Cambiamenti Climatici and Università Ca' Foscari Venezia, CMCC@Ca'Foscari - Edificio Porta dell'Innovazione, 2nd Floor - Via della Libertà, 12, 30175, Venice, Italy; Department of Environmental Sciences, Informatics and Statistics, University Ca' Foscari Venice, I-30170, Venice, Italy
| | - Artur Gil
- cE3c - Centre for Ecology, Evolution and Environmental Changes, Azorean Biodiversity Group, CHANGE - Global Change and Sustainability Institute, Faculty of Sciences and Technology, University of the Azores, 9500-321, Ponta Delgada, Portugal; IVAR - Research Institute for Volcanology and Risk Assessment, University of the Azores, 9500-321, Ponta Delgada, Portugal
| | - Julie P Hawkins
- Department of Ecology & Conservation, Faculty of Environment, Science and Economy, University of Exeter, Penryn Campus, Penryn, TR10 9FE, United Kingdom
| | | | - Tim McCarthy
- National Centre for Geocomputation, Maynooth University, Co. Kildare, Maynooth, Ireland
| | - Callum M Roberts
- Department of Ecology & Conservation, Faculty of Environment, Science and Economy, University of Exeter, Penryn Campus, Penryn, TR10 9FE, United Kingdom
| | - Ewan Trégarot
- Centre for Blue Governance, Portsmouth Business School, University of Portsmouth, Portsmouth, PO1 3DE, United Kingdom
| | - Matthijs van der Geest
- Wageningen Marine Research, Wageningen University & Research, P.O. Box 57, 1780 AB, Den Helder, the Netherlands
| | - Rémy Simide
- Oceanographic Institute Paul Ricard, Embiez Island, France.
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5
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Vidal LG, De Oliveira-Ferreira N, Torres JPM, Azevedo AF, Meirelles ACO, Flach L, Domit C, Fragoso ABL, Lima Silva FJ, Carvalho VL, Marcondes M, Barbosa LA, Cremer MJ, Malm O, Lailson-Brito J, Eljarrat E. Brominated flame retardants and natural organobrominated compounds in a vulnerable delphinid species along the Brazilian coast. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 905:167704. [PMID: 37820801 DOI: 10.1016/j.scitotenv.2023.167704] [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: 02/09/2023] [Revised: 09/26/2023] [Accepted: 10/07/2023] [Indexed: 10/13/2023]
Abstract
Guiana dolphins, Sotalia guianensis, are vulnerable to extinction along their distribution on the Brazilian coast and assessing chemical pollution is of utmost importance for their conservation. For this study, 51 carcasses of Guiana dolphins were sampled across the Brazilian coast to investigate legacy and emerging brominated flame retardants (BFRs) as well as the naturally-produced MeO-BDEs. PBDEs and MeO-BDEs were detected in all samples analyzed, whereas emerging BFRs were detected in 16 % of the samples, all in Rio de Janeiro state. PBDE concentrations varied between 2.24 and 799 ng.g-1 lipid weight (lw), emerging BFRs between 0.12 and 1.51 ng.g-1 lw and MeO-BDEs between 3.82 and 10,247 ng.g-1 lw. Concentrations of legacy and emerging BFRs and natural compounds varied considerably according to the sampling site and reflected both the local anthropogenic impact of the region and the diversity/mass of biosynthesizers. The PBDE concentrations are lower than what was found for delphinids in the Northern Hemisphere around the same sampling period and most sampling sites presented mean concentrations lower than the limits for endocrine disruption known to date for marine mammals of 460 ng.g-1 lw, except for sampled from Santa Catarina state, in Southern Brazil. Conversely, MeO-BDE concentrations are higher than those of the Northern Hemisphere, particularly close to the Abrolhos Bans and Royal Charlotte formation, that are hotspots for biodiversity. Despite the elevated concentrations reported for this group, there is not much information regarding the effects of such elevated concentrations for these marine mammals. The distinct patterns observed along the Brazilian coast show that organobrominated compounds can be used to identify the ecological segregation of delphinids and that conservation actions should be planned considering the local threats.
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Affiliation(s)
- Lara G Vidal
- Aquatic Mammal and Bioindicator Laboratory Professora Izabel Gurgel (MAQUA), School of Oceanography, Rio de Janeiro State University (UERJ), Rua São Francisco Xavier, 524/ 4002-E, Maracanã, 20550-013 Rio de Janeiro, RJ, Brazil; Radioisotope Laboratory Eduardo Penna Franca (LREPF), Biophysics Institute Carlos Chagas Filho (IBCCF), Federal University of Rio de Janeiro (UFRJ), Brazil; Pós-graduação em Sistemas Costeiros e Oceânicos, Centro de Estudos do Mar, Universidade Federal do Paraná, Pontal do Paraná, PR, Brazil; Ecology and Conservation Laboratory, Federal University of Paraná (UFPR), Paraná, Brazil
| | - Nara De Oliveira-Ferreira
- Aquatic Mammal and Bioindicator Laboratory Professora Izabel Gurgel (MAQUA), School of Oceanography, Rio de Janeiro State University (UERJ), Rua São Francisco Xavier, 524/ 4002-E, Maracanã, 20550-013 Rio de Janeiro, RJ, Brazil
| | - João Paulo M Torres
- Radioisotope Laboratory Eduardo Penna Franca (LREPF), Biophysics Institute Carlos Chagas Filho (IBCCF), Federal University of Rio de Janeiro (UFRJ), Brazil
| | - Alexandre F Azevedo
- Aquatic Mammal and Bioindicator Laboratory Professora Izabel Gurgel (MAQUA), School of Oceanography, Rio de Janeiro State University (UERJ), Rua São Francisco Xavier, 524/ 4002-E, Maracanã, 20550-013 Rio de Janeiro, RJ, Brazil
| | - Ana Carolina O Meirelles
- Marine Mammal Conservation Program, Associação de Pesquisa e Preservação de Ecossistemas Aquáticos, Caucaia, Ceará, Brazil; Tropical Marine Sciences Graduate Program, Marine Sciences Institute, Ceará Federal University, Fortaleza, Ceará, Brazil
| | - Leonardo Flach
- Instituto Boto Cinza, Mangaratiba, Rio de Janeiro 23860-000, Brazil
| | - Camila Domit
- Ecology and Conservation Laboratory, Federal University of Paraná (UFPR), Paraná, Brazil
| | - Ana Bernadete L Fragoso
- Programa de Pós-Graduação em Ciências Naturais/Projeto Cetáceos da Costa Branca-Universidade do Estado do Rio Grande do Norte (UERN)/Projeto Golfinho Rotador, Mossoró, Rio Grande do Norte, Brazil
| | - Flávio J Lima Silva
- Programa de Pós-Graduação em Ciências Naturais/Projeto Cetáceos da Costa Branca-Universidade do Estado do Rio Grande do Norte (UERN)/Projeto Golfinho Rotador, Mossoró, Rio Grande do Norte, Brazil
| | - Vítor Luz Carvalho
- Associação de Pesquisa e Preservação de Ecossistemas Aquáticos (AQUASIS), Caucaia, Ceará, Brazil
| | | | - Lupércio A Barbosa
- Environmental Awareness Organization (ORCA), Rua São Paulo, 23, Praia da Costa, Vila Velha, ES 29101-315, Brazil
| | - Marta J Cremer
- Ecology and Conservation Laboratory for Marine and Coastal Tetrapods, University of Joinville Region (UNIVILLE), São Francisco do Sul, Rod. Duque de Caxias, 6365, Iperoba, São Francisco do Sul 89240-000, SC, Brazil
| | - Olaf Malm
- Radioisotope Laboratory Eduardo Penna Franca (LREPF), Biophysics Institute Carlos Chagas Filho (IBCCF), Federal University of Rio de Janeiro (UFRJ), Brazil
| | - José Lailson-Brito
- Aquatic Mammal and Bioindicator Laboratory Professora Izabel Gurgel (MAQUA), School of Oceanography, Rio de Janeiro State University (UERJ), Rua São Francisco Xavier, 524/ 4002-E, Maracanã, 20550-013 Rio de Janeiro, RJ, Brazil
| | - Ethel Eljarrat
- Environmental and Water Chemistry for Human Health, Institute of Environmental Assessment and Water Research (IDAEA), CSIC, Barcelona 08034, Spain.
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Illa-López L, Cabrito A, de Juan S, Maynou F, Demestre M. Distribution of rhodolith beds and their functional biodiversity characterisation using ROV images in the western Mediterranean Sea. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 905:167270. [PMID: 37741380 DOI: 10.1016/j.scitotenv.2023.167270] [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: 04/25/2023] [Revised: 09/08/2023] [Accepted: 09/20/2023] [Indexed: 09/25/2023]
Abstract
Underwater biogenic habitats composed of unattached calcified red algae, named as rhodolith or maërl beds, may extant either alive or dead, over the seabed. The accumulation of rhodoliths constitute three-dimensional structured biogenic habitats that harbour high diversity of benthic organisms. In the Mediterranean Sea, rhodolith beds can be found between ca. 50 and 100 m, increasing diversity of the continental shelf habitats and their conservation value. Despite the remarkable relevance of these habitats, information regarding their spatial distribution in the western Mediterranean is scarce. In addition, these habitats are threatened by a range of anthropogenic activities and by climate-driven changes. In this study, we explored areas with rhodoliths' occurrence from the north to the south of the east coast of Spain. By feeding video recording data into a spatial distribution model, we assessed which biophysical drivers: (i) shape the spatial variation in the abundance of rhodoliths and (ii) define the assemblages of the biological traits and functional richness of the associated epibenthic fauna recorded by video. In addition, we examined the impact of fishing activities on these habitats. Our results evidenced that 'Depth' and 'Temperature' were important environmental factors explaining rhodoliths variation, and we defined their optimal distribution range in the western Mediterranean. The biological traits approach showed significant effects of the geographical location of rhodolith beds and their small-scale spatial heterogeneity on the functional richness index. Indeed, the lowest functional richness value was observed in the area closer to trawl fishing which could be related to habitat degradation due to trawling. This study contributes to the knowledge of deep-water rhodolith beds in the western Mediterranean and reinforce the importance of rhodolith beds in continental shelves as these constitute heterogeneous seabed habitats that harbour a high species and functional diversity.
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Affiliation(s)
- Laia Illa-López
- Institut de Ciències del Mar (ICM-CSIC), Passeig Marítim de la Barceloneta 37-49, Barcelona, Spain.
| | - Andrea Cabrito
- Institut de Ciències del Mar (ICM-CSIC), Passeig Marítim de la Barceloneta 37-49, Barcelona, Spain
| | - Sílvia de Juan
- Institut Mediterrani d'Estudis Avançats (IMEDEA-CSIC), Carrer Miquel Marquès 21, Esporles, Spain
| | - Francesc Maynou
- Institut de Ciències del Mar (ICM-CSIC), Passeig Marítim de la Barceloneta 37-49, Barcelona, Spain
| | - Montserrat Demestre
- Institut de Ciències del Mar (ICM-CSIC), Passeig Marítim de la Barceloneta 37-49, Barcelona, Spain
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7
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Calado L, Cosenza B, Moraes F, Mizrahi D, Xavier FC, Batista D, Calazans S, Araújo F, Coutinho R. Modeling the larvae dispersion of sun coral in the Brazil current off Cape Frio: A cyclonic eddy scenario. PLoS One 2023; 18:e0295534. [PMID: 38096159 PMCID: PMC10721003 DOI: 10.1371/journal.pone.0295534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 11/22/2023] [Indexed: 12/17/2023] Open
Abstract
The study aims to understand the dispersal patterns of non-indigenous Tubastraea spp. (Sun Coral) larvae in the Brazil Current (BC), specifically in the Cape Frio recurrent cyclonic eddy (CFE) scenario. For this, the Regional Ocean Model System was used to simulate the hydrodynamic fields in a high-resolution nested grid, where a model of lagrangian floats, in a good approximation of the larvae properties and considering massive planulation events, was coupled with surface larval release from the Campos Basin area. The simulation was representative of mesoscale features compared to similar studies, ARGO vertical profiles and a py-eddy-track algorithm was used to obtain eddy variables, such as radius, rotational and translational velocities. These parameters are fundamental to access when an eddy tends to trap or not the water, heat and plankton in its interior. CFE turned out to be highly nonlinear, with a strong tendency to trap larvae in its core, acting as a dispersal constrictor when compared with the organisms in the axis of the higher speed of BC. A strong negative correlation (-0.75) was found between the days that larvae were inside the eddy and their distance from the origin. None of the 48,000 larvae released during simulated experiment a 16-day spawning event reached the coast. There are two different patterns for the dispersal, one along the shelf break and another, with higher larval density, off from the 1000 m isobath. The CFE's presence allows larvae to remain in the same region for longer periods, although in offshore areas. Therefore, as there is considerable availability of fixed substrates on oil rig structures, larvae could settle on them resulting in a possible inter-platforms connectivity between populations of Tubastraea spp. Also, regions in the CFE that present downward vertical velocities (downwelling), may move young larvae to depths of about 60 m suggesting that subsurface colonizations are possible due to specific dynamics of propagating cyclonic eddies. So, identifying the main factors that affect the dispersion of propagules is essential to subsidize management policies for controlling bioinvasion associated with exploitation of hydrocarbon resources in offshore areas.
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Affiliation(s)
- Leandro Calado
- Marine Biotechnology Department, Instituto de Estudos do Mar Almirante Paulo Moreira (IEAPM), Arraial do Cabo, Rio de Janeiro, Brazil
| | - Bernardo Cosenza
- Department of Oceanography, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Francisco Moraes
- Department of Oceanography, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Damián Mizrahi
- Marine Biotechnology Department, Instituto de Estudos do Mar Almirante Paulo Moreira (IEAPM), Arraial do Cabo, Rio de Janeiro, Brazil
| | - Fabio C. Xavier
- Marine Biotechnology Department, Instituto de Estudos do Mar Almirante Paulo Moreira (IEAPM), Arraial do Cabo, Rio de Janeiro, Brazil
| | - Daniela Batista
- Marine Biotechnology Department, Instituto de Estudos do Mar Almirante Paulo Moreira (IEAPM), Arraial do Cabo, Rio de Janeiro, Brazil
| | - Sávio Calazans
- Marine Biotechnology Department, Instituto de Estudos do Mar Almirante Paulo Moreira (IEAPM), Arraial do Cabo, Rio de Janeiro, Brazil
| | - Fernanda Araújo
- Marine Biotechnology Department, Instituto de Estudos do Mar Almirante Paulo Moreira (IEAPM), Arraial do Cabo, Rio de Janeiro, Brazil
| | - Ricardo Coutinho
- Marine Biotechnology Department, Instituto de Estudos do Mar Almirante Paulo Moreira (IEAPM), Arraial do Cabo, Rio de Janeiro, Brazil
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8
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Menandro PS, Misiuk B, Brown CJ, Bastos AC. Multispectral multibeam backscatter response of heterogeneous rhodolith beds. Sci Rep 2023; 13:20220. [PMID: 37980368 PMCID: PMC10657437 DOI: 10.1038/s41598-023-46240-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 10/30/2023] [Indexed: 11/20/2023] Open
Abstract
Acoustic backscatter has been used as a tool to map the seafloor in greater detail and plays an increasingly important role in seafloor mapping to meet multiple ocean management needs. An outstanding challenge to the use of backscatter for seafloor mapping is the distinction between acoustically similar substrates, such as mixed sediments from rhodoliths. Rhodolith beds are a biogenic substrate that provides important ecological services, and are typically classified as a single categorical substrate type-though nodules coverage may be spatially variable. Recently, multispectral acoustic backscatter has demonstrated great potential to improve thematic seafloor mapping compared to single-frequency systems. This work employs multispectral multibeam backscatter and underwater imagery to characterize and map rhodolith beds in the Costa das Algas Marine Protected Area (Brazil). A support vector machine classifier was used to classify multifrequency backscatter mosaics according to rhodolith classes identified from underwater imagery. Results suggest that multispectral backscatter is effective both in providing information for mapping different proportions of rhodolith coverage and in predicting the presence or absence of these nodules. The backscatter of the lowest frequency was the most useful for distinguishing variable proportions of rhodolith coverage, and the two higher frequencies were better predictors of presence and absence.
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Affiliation(s)
- Pedro S Menandro
- Marine Geosciences Lab (Labogeo), Departamento de Oceanografia E Ecologia, Universidade Federal do Espírito Santo, Vitória, ES, Brazil
| | - Benjamin Misiuk
- Seascape Ecology and Mapping Lab, Department of Oceanography, Dalhousie University, Halifax, NS, Canada
| | - Craig J Brown
- Seascape Ecology and Mapping Lab, Department of Oceanography, Dalhousie University, Halifax, NS, Canada
| | - Alex C Bastos
- Marine Geosciences Lab (Labogeo), Departamento de Oceanografia E Ecologia, Universidade Federal do Espírito Santo, Vitória, ES, Brazil.
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9
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Castro GM, Vargens RP, Carlos-Júnior LA, Cardoso FC, Salomon PS, Tenório MMB, Bastos AC, Oliveira N, Ghisolfi RD, Cordeiro RTS, Moura RL. Incised valleys drive distinctive oceanographic processes and biological assemblages within rhodolith beds. PLoS One 2023; 18:e0293259. [PMID: 37956173 PMCID: PMC10642839 DOI: 10.1371/journal.pone.0293259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 10/09/2023] [Indexed: 11/15/2023] Open
Abstract
Continental shelves encompass gently sloped seascapes that are highly productive and intensively exploited for natural resources. Islands, reefs and other emergent or quasi-emergent features punctuate these shallow (<100 m) seascapes and are well known drivers of increased biomass and biodiversity, as well as predictors of fishing and other human uses. On the other hand, relict mesoscale geomorphological features that do not represent navigation hazards, such as incised valleys (IVs), remain poorly charted. Consequently, their role in biophysical processes remains poorly assessed and sampled. Incised valleys are common within rhodolith beds (RBs), the most extensive benthic habitat along the tropical and subtropical portions of the mid and outer Brazilian shelf. Here, we report on a multi-proxy assessment carried out in a tropical-subtropical transition region (~20°S) off Eastern Brazil, contrasting physicochemical and biological variables in IVs and adjacent RBs. Valleys interfere in near bottom circulation and function as conduits for water and propagules from the slope up to the mid shelf. In addition, they provide a stable and structurally complex habitat for black corals and gorgonians that usually occur in deeper water, contrasting sharply with the algae-dominated RB. Fish richness, abundance and biomass were also higher in the IVs, with small planktivores and large-bodied, commercially important species (e.g. groupers, snappers and grunts) presenting smaller abundances or being absent from RBs. Overall, IVs are unique and vulnerable habitats that sustain diverse assemblages and important ecosystem processes. As new IVs are detected by remote sensing or bathymetric surveys, they can be incorporated into regional marine management plans as conservation targets and priority sites for detailed in situ surveys.
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Affiliation(s)
- Guilherme M. Castro
- Instituto de Biologia and SAGE/COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Rafaela P. Vargens
- Departamento de Biologia, Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Lélis A. Carlos-Júnior
- Departamento de Biologia, Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Fernando C. Cardoso
- Instituto de Biologia and SAGE/COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Paulo S. Salomon
- Instituto de Biologia and SAGE/COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Márcio M. B. Tenório
- Instituto de Biologia and SAGE/COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Alex C. Bastos
- Departamento de Oceanografia, Universidade Federal do Espírito Santo, Vitória, Brazil
| | - Natacha Oliveira
- Departamento de Oceanografia, Universidade Federal do Espírito Santo, Vitória, Brazil
| | - Renato D. Ghisolfi
- Departamento de Oceanografia, Universidade Federal do Espírito Santo, Vitória, Brazil
| | - Ralf T. S. Cordeiro
- Departamento de Biologia, Universidade Federal Rural de Pernambuco, Recife, PE, Brazil
| | - Rodrigo L. Moura
- Instituto de Biologia and SAGE/COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
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Villas-Boas AB, Tâmega FTS, Figueiredo MAO, Coutinho R. Photosynthetic responses of crustose coralline algae recruit from an upwelling area to light intensity, temperature and current flow rate in a mesocosm. MARINE ENVIRONMENTAL RESEARCH 2023; 190:106118. [PMID: 37531676 DOI: 10.1016/j.marenvres.2023.106118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 07/19/2023] [Accepted: 07/21/2023] [Indexed: 08/04/2023]
Abstract
The crustose coralline algae (CCA) play an important role building carbonate habitats and enhancing species diversity in rocky shores, rhodolith beds and coral-algal reefs. Though worldwide distributed some taxonomic groups were proved to show light and temperature boundaries. Nevertheless, little is known about the biological limits of CCA recruits and photosynthetic responses in a climate change environment. In this way, experimental studies are essential to identify their optimal conditions development. The aim of the study was to test ideal environmental conditions for CCA recruits from an upwelling area to verify Fv/Fm response patterns as an indicator of photosynthetic performance. Artificial disks were fixed on a rocky shore to provide substrate for CCA recruitments and then moved to be tested in a flow-through system. The CCA tested were species of the Genus Lithophyllum and experiments were performed with CCA exposed to different levels of light, temperature and current flow rates. The photosystem II function, measured by chlorophyll a fluorescence (Fv/Fm), was used as an indicator of potential photosynthetic electron transport. There was an interaction between light intensity, flow rate and temperature. Low light intensity, high temperature and fast flow rate (20 μmol m-2. s-1; 19 and 24 °C; 0.09 m s-1 respectively) provided optimal conditions for CCA recruits.
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Affiliation(s)
- A B Villas-Boas
- Instituto de Estudos do Mar Almirante Paulo Moreira, Departamento de Biotecnologia Marinha, 253, 28930-000, Arraial do Cabo, Rio de Janeiro, Brazil.
| | - F T S Tâmega
- Instituto de Estudos do Mar Almirante Paulo Moreira, Departamento de Biotecnologia Marinha, 253, 28930-000, Arraial do Cabo, Rio de Janeiro, Brazil
| | - M A O Figueiredo
- Instituto de Pesquisa Jardim Botânico do Rio de Janeiro, Rua Pacheco Leão 915, Jardim Botânico 22460-030, Rio de Janeiro, RJ, Brazil
| | - R Coutinho
- Instituto de Estudos do Mar Almirante Paulo Moreira, Departamento de Biotecnologia Marinha, 253, 28930-000, Arraial do Cabo, Rio de Janeiro, Brazil
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11
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Costa DDA, Dolbeth M, Christoffersen ML, Zúñiga-Upegui PT, Venâncio M, de Lucena RFP. An Overview of Rhodoliths: Ecological Importance and Conservation Emergency. Life (Basel) 2023; 13:1556. [PMID: 37511931 PMCID: PMC10382044 DOI: 10.3390/life13071556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 06/23/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023] Open
Abstract
Red calcareous algae create bio-aggregations ecosystems constituted by carbonate calcium, with two main morphotypes: geniculate and non-geniculate structures (rhodoliths may form bio-encrustations on hard substrata or unattached nodules). This study presents a bibliographic review of the order Corallinales (specifically, rhodoliths), highlighting on morphology, ecology, diversity, related organisms, major anthropogenic influences on climate change and current conservation initiatives. These habitats are often widespread geographically and bathymetrically, occurring in the photic zone from the intertidal area to depths of 270 m. Due to its diverse morphology, this group offers a special biogenic environment that is favourable to epiphyte algae and a number of marine invertebrates. They also include holobiont microbiota made up of tiny eukaryotes, bacteria and viruses. The morphology of red calcareous algae and outside environmental conditions are thought to be the key forces regulating faunistic communities in algae reefs. The impacts of climate change, particularly those related to acidification, might substantially jeopardise the survival of the Corallinales. Despite the significance of these ecosystems, there are a number of anthropogenic stresses on them. Since there have been few attempts to conserve them, programs aimed at their conservation and management need to closely monitor their habitats, research the communities they are linked with and assess the effects they have on the environment.
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Affiliation(s)
- Dimítri de Araújo Costa
- CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, s/n, 4450-208 Matosinhos, Portugal
- DSE-Department of Systematics and Ecology, CCEN-Center of Exact and Nature Sciences, UFPB-Federal University of Paraíba-Campus I, Cidade Universitária, João Pessoa 58050-585, Paraíba, Brazil
- ES-Inst-Environmental Smoke Institute, Rua Comerciante Antonio de Souza Lima, 25, Bairro Mangabeira, João Pessoa 58055-060, Paraíba, Brazil
| | - Marina Dolbeth
- CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, s/n, 4450-208 Matosinhos, Portugal
| | - Martin Lindsey Christoffersen
- DSE-Department of Systematics and Ecology, CCEN-Center of Exact and Nature Sciences, UFPB-Federal University of Paraíba-Campus I, Cidade Universitária, João Pessoa 58050-585, Paraíba, Brazil
| | - Pamela Tatiana Zúñiga-Upegui
- GIZ-Grupo de Investigación en Zoología, Facultad de Ciencias, UT-Universidad del Tolima, Barrio Santa Helena Parte Alta Cl 42 1-02, Ibagué 730006299, Colombia
| | - Márcia Venâncio
- CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, s/n, 4450-208 Matosinhos, Portugal
| | - Reinaldo Farias Paiva de Lucena
- DSE-Department of Systematics and Ecology, CCEN-Center of Exact and Nature Sciences, UFPB-Federal University of Paraíba-Campus I, Cidade Universitária, João Pessoa 58050-585, Paraíba, Brazil
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12
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Voerman SE, Ruseckas A, Turnbull GA, Samuel IDW, Burdett HL. Red algae acclimate to low light by modifying phycobilisome composition to maintain efficient light harvesting. BMC Biol 2022; 20:291. [PMID: 36575464 PMCID: PMC9794408 DOI: 10.1186/s12915-022-01480-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 11/24/2022] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Despite a global prevalence of photosynthetic organisms in the ocean's mesophotic zone (30-200+ m depth), the mechanisms that enable photosynthesis to proceed in this low light environment are poorly defined. Red coralline algae are the deepest known marine benthic macroalgae - here we investigated the light harvesting mechanism and mesophotic acclimatory response of the red coralline alga Lithothamnion glaciale. RESULTS Following initial absorption by phycourobilin and phycoerythrobilin in phycoerythrin, energy was transferred from the phycobilisome to photosystems I and II within 120 ps. This enabled delivery of 94% of excitations to reaction centres. Low light intensity, and to a lesser extent a mesophotic spectrum, caused significant acclimatory change in chromophores and biliproteins, including a 10% increase in phycoerythrin light harvesting capacity and a 20% reduction in chlorophyll-a concentration and photon requirements for photosystems I and II. The rate of energy transfer remained consistent across experimental treatments, indicating an acclimatory response that maintains energy transfer. CONCLUSIONS Our results demonstrate that responsive light harvesting by phycobilisomes and photosystem functional acclimation are key to red algal success in the mesophotic zone.
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Affiliation(s)
- Sofie E. Voerman
- Lyell Centre for Earth and Marine Science and Technology, Edinburgh, EH14 4BA UK ,grid.9531.e0000000106567444School of Energy, Geoscience, Infrastructure and Society, Heriot-Watt University, Edinburgh, EH14 4AS UK
| | - Arvydas Ruseckas
- grid.11914.3c0000 0001 0721 1626Organic Semiconductor Centre, SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews, KY16 9SS UK
| | - Graham A. Turnbull
- grid.11914.3c0000 0001 0721 1626Organic Semiconductor Centre, SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews, KY16 9SS UK
| | - Ifor D. W. Samuel
- grid.11914.3c0000 0001 0721 1626Organic Semiconductor Centre, SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews, KY16 9SS UK
| | - Heidi L. Burdett
- Lyell Centre for Earth and Marine Science and Technology, Edinburgh, EH14 4BA UK ,grid.9531.e0000000106567444School of Energy, Geoscience, Infrastructure and Society, Heriot-Watt University, Edinburgh, EH14 4AS UK ,grid.12650.300000 0001 1034 3451Present Address: Department of Ecology and Environmental Sciences, Umeå University, Umeå, Sweden ,grid.12650.300000 0001 1034 3451Umeå Marine Sciences Centre, Umeå University, Norrbyn, Sweden
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13
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Azevedo RNA, Bezerra KMM, Nascimento RF, Nelson RK, Reddy CM, Nascimento AP, Oliveira AHB, Martins LL, Cavalcante RM. Is there a similarity between the 2019 and 2022 oil spills that occurred on the coast of Ceará (Northeast Brazil)? An analysis based on forensic environmental geochemistry. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 314:120283. [PMID: 36180002 DOI: 10.1016/j.envpol.2022.120283] [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: 05/20/2022] [Revised: 09/21/2022] [Accepted: 09/22/2022] [Indexed: 06/16/2023]
Abstract
The main objective of this study was to investigate the 2019 and 2022 oil spill events that occurred off the coast of the State of Ceará, Northeastern Brazil. To further assess these mysterious oil spills, we investigated whether the oils stranded on the beaches of Ceará in 2019 and 2022 had the same origin, whether their compositional differences were due to weathering processes, and whether the materials from both were natural or industrially processed. We collected oil samples in October 2019 and January 2022, soon after their appearance on the beaches. We applied a forensic environmental geochemistry approach using both one-dimensional and two-dimensional gas chromatography to assess chemical composition. The collected material had characteristics of crude oil and not refined oils. In addition, the 2022 oil samples collected over 130 km of the east coast of Ceará had a similar chemical profile and were thus considered to originate from the same source. However, these oils had distinct biomarker profiles compared to those of the 2019 oils, including resistant terpanes and triaromatic steranes, thus excluding the hypothesis that the oil that reached the coast of Ceará in January 2022 is related to the tragedy that occurred in 2019. From a geochemical perspective, the oil released in 2019 is more thermally mature than that released in 2022, with both having source rocks with distinct types of organic matter and depositional environments. As the coast of Ceará has vast ecological diversity and Marine Protected Areas, the possibility of occasional oil spills in the area causing severe environmental pollution should be investigated from multiple perspectives, including forensic environmental geochemistry.
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Affiliation(s)
- Rufino N A Azevedo
- Environmental Studies Laboratory (LEA), Federal University of Ceara, Analytical Chemistry and Physical Chemistry Dpto Campus Pici, Av. Mister Hull, s/n - Pici, CEP 60455-760, Fortaleza, CE, Brazil
| | - Kamylla M M Bezerra
- Environmental Studies Laboratory (LEA), Federal University of Ceara, Analytical Chemistry and Physical Chemistry Dpto Campus Pici, Av. Mister Hull, s/n - Pici, CEP 60455-760, Fortaleza, CE, Brazil; National Institute of Science and Technology in Tropical Marine Environments (INCT-AmbTropic, Phase II - Oil Spill), Brazil
| | - Ronaldo F Nascimento
- Laboratory of Traces Analysis (LAT) - Department of Analytical Chemistry and Physical Chemistry, Federal University of Ceara, Rua do Contorno, Humberto Monte S/N Campus do Pici, Bloco 940, Fortaleza, CE 60451-970, Brazil
| | - Robert K Nelson
- Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA, 02543, USA
| | - Christopher M Reddy
- Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA, 02543, USA
| | - Adriana P Nascimento
- Laboratory for Assessment of Organic Contaminants (LACOr), Institute of Marine Sciences-Federal University of Ceara (LABOMAR-UFC), Av. Abolição, 3207-Meireles, CEP: 60165-081, Fortaleza, CE, Brazil; Tropical Marine Sciences Program/LABOMAR/UFC, Brazil
| | - André H B Oliveira
- Environmental Studies Laboratory (LEA), Federal University of Ceara, Analytical Chemistry and Physical Chemistry Dpto Campus Pici, Av. Mister Hull, s/n - Pici, CEP 60455-760, Fortaleza, CE, Brazil; Laboratory for Assessment of Organic Contaminants (LACOr), Institute of Marine Sciences-Federal University of Ceara (LABOMAR-UFC), Av. Abolição, 3207-Meireles, CEP: 60165-081, Fortaleza, CE, Brazil; Tropical Marine Sciences Program/LABOMAR/UFC, Brazil
| | - Laercio L Martins
- Laboratory for Assessment of Organic Contaminants (LACOr), Institute of Marine Sciences-Federal University of Ceara (LABOMAR-UFC), Av. Abolição, 3207-Meireles, CEP: 60165-081, Fortaleza, CE, Brazil; Tropical Marine Sciences Program/LABOMAR/UFC, Brazil; Laboratory of Petroleum Engineering and Exploration (LENEP), North Fluminense State University (UENF), Macaé, Rio de Janeiro, 27925-535, Brazil
| | - Rivelino M Cavalcante
- National Institute of Science and Technology in Tropical Marine Environments (INCT-AmbTropic, Phase II - Oil Spill), Brazil; Laboratory for Assessment of Organic Contaminants (LACOr), Institute of Marine Sciences-Federal University of Ceara (LABOMAR-UFC), Av. Abolição, 3207-Meireles, CEP: 60165-081, Fortaleza, CE, Brazil; Tropical Marine Sciences Program/LABOMAR/UFC, Brazil.
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14
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Basso D, Piazza G, Bracchi VA. Calcification traits for cryptic species identification: Insights into coralline biomineralization. PLoS One 2022; 17:e0273505. [PMID: 36190996 PMCID: PMC9529143 DOI: 10.1371/journal.pone.0273505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 08/09/2022] [Indexed: 11/06/2022] Open
Abstract
Calcareous red algae are foundation species and ecosystem engineers with a global distribution. The principles governing their calcification pathways are still debated and the morphological characters are frequently unreliable for species segregation, as shown by molecular genetics. The recent description of the new species Lithophyllum pseudoracemus, previously undetected and morphologically confused with Lithophyllum racemus, offered a challenging opportunity to test the effectiveness of microanatomy and ultrastructural calcification traits as tools for the identification of these two species, for integrative taxonomy. High resolution SEM images of molecularly identified samples showed that the different size of the perithallial cells and the features of the asexual conceptacle chambers may contribute to the separation of the two species. The two species share the same crystallite morphology in the primary and secondary cell-wall calcification, as previously described in other species belonging to the same clade. However, the perithallial secondary calcification was significantly thicker in L. racemus than in L. pseudoracemus. We described a granular calcified layer in the innermost part of the cell wall, as a putative precursor phase in the biomineralization and formation of the secondary calcification. The hypothesis of different pathways for the formation of the primary and secondary calcification is supported by the observed cell elongation associated with thicker and higher Mg/Ca primary calcification, the inverse correlation of primary and secondary calcification thickness, and the absence of primary calcification in the newly formed wall cutting off an epithallial cell from the meristem.
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Affiliation(s)
- Daniela Basso
- Department of Earth and Environmental Sciences, University of Milano-Bicocca, Milan, Italy
- CoNISMa Research Unit of Milano-Bicocca, Milano, Italy
- * E-mail:
| | - Giulia Piazza
- Department of Earth and Environmental Sciences, University of Milano-Bicocca, Milan, Italy
- Department of Earth and Ocean Dynamics, University of Barcelona, Barcelona, Spain
| | - Valentina Alice Bracchi
- Department of Earth and Environmental Sciences, University of Milano-Bicocca, Milan, Italy
- CoNISMa Research Unit of Milano-Bicocca, Milano, Italy
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15
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Rendina F, Buonocore E, di Montanara AC, Russo G. The scientific research on rhodolith beds: A review through bibliometric network analysis. ECOL INFORM 2022. [DOI: 10.1016/j.ecoinf.2022.101738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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16
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de Carvalho RT, Rocha GM, Karez CS, da Gama Bahia R, Pereira RC, Bastos AC, Salgado LT. Global assessment of coralline algae mineralogy points to high vulnerability of Southwestern Atlantic reefs and rhodolith beds to ocean acidification. Sci Rep 2022; 12:9589. [PMID: 35688967 PMCID: PMC9187768 DOI: 10.1038/s41598-022-13731-y] [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: 02/02/2022] [Accepted: 05/12/2022] [Indexed: 11/09/2022] Open
Abstract
Coralline algae constitute one of the main groups of highly vulnerable calcified benthic organisms to ocean acidification. Although damaging effects of seawater acidification on the coralline algae skeleton have been widely demonstrated, the susceptibility to dissolution varies according to the Mg2+ in the calcite lattice. Even though the Southwest Atlantic Ocean exhibits the world's largest rhodolith beds, which occupies 20,902 km2, there is no information regarding the coralline algae species mineralogy in this area. Here, we provide mineralogical data of twenty-four coralline algae species, examine the similarity in taxonomic groups, spatial occurrence and the vulnerability of these algae to seawater acidification. Mineralogy revealed that coralline algae skeletons were mainly composed of high-Mg calcite (> 70%) with minor presence of aragonite (< 30%) and dolomite (< 3%). There were no similarities between the skeletal mineralogy of taxonomic groups and sampling regions. Remarkably, the mean Mg-substitution of encrusting coralline algae from the Brazilian Shelf was 46.3% higher than global average. Because of the higher mean Mg-substitution in calcite compared with worldwide coralline algae, these algae from Southwest Atlantic Ocean would be highly susceptible to dissolution caused by the expected near-future ocean acidification and will compromise CaCO3 net production across the Brazilian Shelf.
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Affiliation(s)
- Rodrigo Tomazetto de Carvalho
- Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Rua Pacheco Leão, 915, Jardim Botânico, Rio de Janeiro, RJ, CEP 22460-030, Brazil
| | - Gustavo Miranda Rocha
- Instituto de Biofísica Carlos Chagas Filho, CCS-Centro de Ciências da Saúde, Cidade Universitária, Rio de Janeiro, RJ, 21941-902, Brazil
| | - Claudia Santiago Karez
- Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Rua Pacheco Leão, 915, Jardim Botânico, Rio de Janeiro, RJ, CEP 22460-030, Brazil
| | - Ricardo da Gama Bahia
- Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Rua Pacheco Leão, 915, Jardim Botânico, Rio de Janeiro, RJ, CEP 22460-030, Brazil
| | - Renato Crespo Pereira
- Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Rua Pacheco Leão, 915, Jardim Botânico, Rio de Janeiro, RJ, CEP 22460-030, Brazil
| | - Alex Cardoso Bastos
- Departamento de Ecologia e Recursos Naturais, Centro de Ciências Humanas e Naturais, Universidade Federal do Espírito Santo, Av. Fernando Ferrari, 514 Goiabeiras, Vitória, ES, CEP 29055-460, Brazil
| | - Leonardo Tavares Salgado
- Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Rua Pacheco Leão, 915, Jardim Botânico, Rio de Janeiro, RJ, CEP 22460-030, Brazil.
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17
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Schmid K, Reis-Filho JA, Loiola M, Harvey ES, de Kikuchi RKP, Giarrizzo T. Habitat-specific fish fauna responses to different management regimes in the largest coral reef complex in the South Atlantic. MARINE ENVIRONMENTAL RESEARCH 2022; 178:105661. [PMID: 35661942 DOI: 10.1016/j.marenvres.2022.105661] [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: 12/09/2021] [Revised: 05/12/2022] [Accepted: 05/16/2022] [Indexed: 06/15/2023]
Abstract
While marine protected areas (MPAs) are increasing worldwide, it is still needed to assess the effectiveness of those already consolidated. Methods and ecological assessments to understanding integrated and habitat-specific management regimes are still scarce and insufficient for policy implications and biodiversity conservation. Through Baited Remote Underwater Video (BRUV), we used fish assemblages as proxy of ecological and managerial status in two reef habitat types along three protection levels at Abrolhos Bank - the largest and most biodiverse coral reef complex of the South Atlantic. We found completely distinct responses in the fish fauna between the top (shallow) and bottom (deep) habitats of the unique "chapeirões" pinnacle reef formations. In the most protected zone (no-take), higher richness and abundance of commercial fish and more diverse trophic structure was observed. Particularly, large (sharks and groupers) and small carnivores (snappers) were more abundant and distributed more homogeneously over both reef habitats in the strictly enforced no-take zone. Abundance of these top-predators decreased from the low enforcement no-take zone to the multiple use area, where they were often absent while their typical preys (primary and secondary consumers) were thriving, notably in the top habitats. These outcomes highlight the importance to focus investigations not selectively on a single habitat type or depth zone in order to properly assess MPA effectiveness. Consequently, the monitoring and protection of fish species supported by marine spatial planning may benefit from an improved understanding of ecological functioning provided by MPA performance.
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Affiliation(s)
- Kurt Schmid
- Universidade Federal do Pará (UFPA), Grupo de Ecologia Aquática, Belém, Pará State, Brazil
| | - José Amorim Reis-Filho
- Universidade Federal da Bahia (UFBA), Programa de Pós Graduação em Ecologia aplicada a Gestão Ambiental, Bahia State, Brazil; ICHTUS Ambiente & Sociedade, 41830-600, Bahia State, Brazil.
| | - Miguel Loiola
- Universidade Federal da Bahia (UFBA), Bioinformatics and Microbial Ecology Laboratory (BIOME), Salvador, Bahia State, Brazil
| | - Euan Sinclair Harvey
- School of Molecular and Life Sciences, Curtin University, Perth, Western Australia, Australia
| | - Ruy Kenji Papa de Kikuchi
- Universidade Federal da Bahia (UFBA), Department of Oceanography, Coral Reef and Global Climate Change Research Group, Salvador, Bahia State, Brazil
| | - Tommaso Giarrizzo
- Universidade Federal do Pará (UFPA), Grupo de Ecologia Aquática, Belém, Pará State, Brazil; Instituto de Ciências do Mar (LABOMAR), Universidade Federal do Ceará (UFC), Fortaleza, Ceará State, Brazil
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18
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Arnold CL, Bélanger D, Gagnon P. Growth Resilience of Subarctic Rhodoliths (Lithothamnion glaciale, Rhodophyta) to Chronic Low Sea Temperature and irradiance. JOURNAL OF PHYCOLOGY 2022; 58:251-266. [PMID: 34902157 DOI: 10.1111/jpy.13231] [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: 05/26/2021] [Revised: 10/27/2021] [Accepted: 11/17/2021] [Indexed: 06/14/2023]
Abstract
Rhodolith beds are pervasive marine biological systems in the subarctic North Atlantic. Limited knowledge about effects of temperature and irradiance on rhodolith growth limits the ability to anticipate the response of rhodolith beds to this ocean's chronic low, yet changing sea temperature and irradiance regimes. We carried out a 149-d laboratory experiment with Newfoundland Lithothamnion glaciale rhodoliths to test the predictions that growth (i) is inhibited at temperatures of ~0.5°C and (ii) resumes as temperature increases above 0.5°C, albeit at a higher rate under high than low irradiances. Rhodoliths were grown in experimental tanks at near-zero (~0.7°C) seawater temperatures during the first 85 d and at temperatures increasing naturally to ~6°C for the remaining 64 d. Rhodoliths in those tanks were exposed to either low (0.02 mol photons·m-2 ·d-1 ) or high (0.78 mol photons·m-2 ·d-1 ) irradiances during the entire experiment. Rhodoliths grew at a linear rate of ~281 μm·year-1 (0.77 μm·d-1 ) throughout the experiment under both irradiance treatments despite daily seawater temperature variation of up to 3°C. Near-zero temperatures of ~0.5 to 1.0°C did not inhibit rhodolith growth. Model selection showed that PAR-day (a cumulative irradiance index) was a better predictor of growth variation than Degree-day (a cumulative thermal index). Our findings extend to ~0.5°C the lower limit of the known temperature range (~1 to at least 16°C) over which growth in L. glaciale rhodoliths remains unaffected, while suggesting that the growth-irradiance relationship in low-light environments at temperatures below 6°C is less irradiance-driven than recently proposed.
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Affiliation(s)
- Cassidy L Arnold
- Department of Ocean Sciences, Ocean Sciences Centre, Memorial University of Newfoundland, St. John's, A1C 5S7, Newfoundland and Labrador, Canada
| | - David Bélanger
- Department of Biology, Memorial University of Newfoundland, St. John's, A1B 3X9, Newfoundland and Labrador, Canada
| | - Patrick Gagnon
- Department of Ocean Sciences, Ocean Sciences Centre, Memorial University of Newfoundland, St. John's, A1C 5S7, Newfoundland and Labrador, Canada
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19
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Gama IH, Almeida MGD, Rangel TP, Marques JSJ, Oliveira BCVD, Araújo BF, Gatts PV, Francini-Filho RB, Thompson F, Rezende CED. Metals and organic matter baselines in sediments in a cross-shelf gradient at Abrolhos Bank, SW Atlantic. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 802:149867. [PMID: 34469861 DOI: 10.1016/j.scitotenv.2021.149867] [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: 06/19/2021] [Revised: 08/15/2021] [Accepted: 08/19/2021] [Indexed: 06/13/2023]
Abstract
The present study performed geochemical fractioning of major and minor elements in a cross-shelf gradient of the Abrolhos Bank, where the largest and most diverse coral reefs in the South Atlantic are concentrated. The fractioning was performed using sequential extractions to determine the degree of availability and toxicity of the elements. The mobility pattern of the elements investigated were in the following order: Ca > Mn > Pb > Cr > Zn > Fe > V > Cu > Ba>Al > Ni > Ti. For elements, such as (Ti, Ni, Al, Ba, Cu, V, Fe, Zn, Cr, Pb), the highest concentrations were in the residual phase at some sampling sites. As established by Environment Canada (Threshold Effect Level - TEL and Probable Effect Level - PEL), Ba, Cr, and Ni produced values higher than the limits, associated with higher concentrations of other elements. In addition, significant proportions of these elements were found in mobile phases in the same sites. Thus, more rigorous measures are critical to avoid alarming levels of chronic environmental pollution inside and outside protected areas of the region. To enhance the sustainability of the region, more effective enforcement is crucial to prevent anthropic contamination that may threaten its biodiversity. The results provide the baseline for future studies regarding the potential impacts of the breach of the tailings dam in the region of Mariana, Minas Gerais.
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Affiliation(s)
- Iris H Gama
- Laboratório de Ciências Ambientais, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, 28013-600 Campos dos Goytacazes, RJ, Brazil
| | - Marcelo G de Almeida
- Laboratório de Ciências Ambientais, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, 28013-600 Campos dos Goytacazes, RJ, Brazil
| | - Thiago P Rangel
- Laboratório de Ciências Ambientais, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, 28013-600 Campos dos Goytacazes, RJ, Brazil
| | - Jomar S J Marques
- Laboratório de Ciências Ambientais, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, 28013-600 Campos dos Goytacazes, RJ, Brazil
| | - Braulio C V de Oliveira
- Laboratório de Ciências Ambientais, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, 28013-600 Campos dos Goytacazes, RJ, Brazil
| | - Beatriz F Araújo
- Laboratório de Ciências Ambientais, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, 28013-600 Campos dos Goytacazes, RJ, Brazil
| | - Pedro V Gatts
- Laboratório de Ciências Ambientais, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, 28013-600 Campos dos Goytacazes, RJ, Brazil
| | | | - Fabiano Thompson
- Universidade Federal do Rio de Janeiro, 21941-901 Rio de Janeiro, RJ, Brazil
| | - Carlos E de Rezende
- Laboratório de Ciências Ambientais, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, 28013-600 Campos dos Goytacazes, RJ, Brazil.
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20
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Recovery Signals of Rhodoliths Beds since Bottom Trawling Ban in the SCI Menorca Channel (Western Mediterranean). DIVERSITY 2021. [DOI: 10.3390/d14010020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
One of the objectives of the LIFE IP INTEMARES project is to assess the impact of bottom trawling on the vulnerable benthic habitats of the circalittoral bottoms of the Menorca Channel (western Mediterranean), designated a Site of Community Importance (SCI) within the Natura 2000 network. The present study compares the epibenthic communities of four areas, subjected to different bottom trawl fishing intensity levels. The assignment of fishing effort levels was based on the fishing effort distribution in the area calculated from Vessel Monitoring System (VMS) data and the existence of two Fishing Protected Zones in the Menorca Channel. Biological samples were collected from 39 beam trawl stations, sampled during a scientific survey on April 2019. We compare the diversity, composition, and density of the epibenthic flora and fauna, together with the rhodoliths coverage and the morphology of the main species of rhodoliths of four areas subjected to different levels of bottom trawl fishing effort, including one that has never been impacted by trawling. Our results have shown negative impacts of bottom trawling on rhodoliths beds and the first signals of their recovery in areas recently closed to this fishery, which indicate that this is an effective measure for the conservation of this habitat of special interest and must be included in the management plan required to declare the Menorca Channel as a Special Area of Conservation.
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21
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Randi CB, Becker AC, Willemes MJ, Perry CT, Salgado LT, Tomazetto de Carvalho R, Motta FS, Leão de Moura R, Coreixas de Moraes F, Pereira-Filho GH. Calcium carbonate production in the southernmost subtropical Atlantic coral reef. MARINE ENVIRONMENTAL RESEARCH 2021; 172:105490. [PMID: 34628146 DOI: 10.1016/j.marenvres.2021.105490] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 09/17/2021] [Accepted: 09/26/2021] [Indexed: 06/13/2023]
Abstract
Emerging evidence have been supporting the idea that the better known South Atlantic coral reefs (located between 18°S and 24°S) are now essentially senescent structures that have experienced little or no additional vertical reef growth over the past millennia. This has often coincided with a shift to a dominance of non-coral calcifying organisms becoming the main CaCO3 producers in these high latitude and marginal marine settings. Here, we used Calcification Accretion Units (CAUs) and census-based methods to measure non-coral rates of CaCO3 production on the geologically senescent reef and adjacent rhodolith beds within the southernmost subtropical Atlantic reef (i.e., Queimada Grande Reef, QGR). The reef habitat is currently producing CaCO3 at rates of ∼126 g m-2 yr-1. In contrast, fragments of dead corals skeletons deposited adjacent to the reef over the last ∼2000 years are now colonized by crustose coralline red algae. These form a rhodolith bed that produces CaCO3 at rates of 858 g m-2 yr-1. Our results indicate that, whilst not sufficient to promote active net framework accumulation, CaCO3 production by coralline algae and bryozoans on the QGR appears to be sufficient to at least limit net large-scale erosion of the underlying reef structure, allowing the reef structure to persist in a state close to budgetary stasis. Finally, our results are also of relevance for providing insights regarding the balance of CaCO3 production/dissolution/erosion processes in coral reefs, especially in these less understood marginal reefs.
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Affiliation(s)
- Caroline B Randi
- Laboratório de Ecologia e Conservação Marinha, Instituto do Mar, Universidade Federal de São Paulo, Rua Dr. Carvalho de Mendonça 144, Santos, 110-070, Brazil
| | - Ana Clara Becker
- Laboratório de Ecologia e Conservação Marinha, Instituto do Mar, Universidade Federal de São Paulo, Rua Dr. Carvalho de Mendonça 144, Santos, 110-070, Brazil
| | - Maria Julia Willemes
- Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Rua Pacheco Leão 915, Rio de Janeiro, 22460-030, Brazil
| | - Chris T Perry
- Geography, College of Life and Environmental Sciences, University of Exeter, Exeter, UK
| | - Leonardo Tavares Salgado
- Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Rua Pacheco Leão 915, Rio de Janeiro, 22460-030, Brazil
| | | | - Fabio S Motta
- Laboratório de Ecologia e Conservação Marinha, Instituto do Mar, Universidade Federal de São Paulo, Rua Dr. Carvalho de Mendonça 144, Santos, 110-070, Brazil
| | - Rodrigo Leão de Moura
- Instituto de Biologia and SAGE-COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Fernando Coreixas de Moraes
- Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Rua Pacheco Leão 915, Rio de Janeiro, 22460-030, Brazil; Departamento de Invertebrados, Museu Nacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Guilherme H Pereira-Filho
- Laboratório de Ecologia e Conservação Marinha, Instituto do Mar, Universidade Federal de São Paulo, Rua Dr. Carvalho de Mendonça 144, Santos, 110-070, Brazil.
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22
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A New Species of Amphipod Pariphinotus Kunkel, 1910 (Amphipoda: Phliantidae) from the Southwestern Atlantic. Zool Stud 2021; 60:e57. [PMID: 35665079 PMCID: PMC9121138 DOI: 10.6620/zs.2021.60-57] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 07/01/2021] [Indexed: 01/24/2023]
Abstract
The genus Pariphinotus Kunkel, 1910 comprises a total of six species around the world, with circumtropical and subtropical distribution, commonly occurring in shallow waters, in soft bottoms and algae, including a previous record of P. seclusus (Shoemaker, 1933) from Brazil. Material examined was collected by SCUBA diving, from rhodolith beds, 12 meters deep, at the Fernando de Noronha Archipelago, off the northeastern Brazilian coast. The new Brazilian species described here can be diagnosed by a unique combination of character states present in other species of the genus. However, it has two exclusive characteristics, distinguishing it from the group: medial apex of pleopod 3 peduncle with two small hook setae, and uropod 1 peduncle not exceeding the apex of telson.
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23
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Peña V, Harvey BP, Agostini S, Porzio L, Milazzo M, Horta P, Le Gall L, Hall-Spencer JM. Major loss of coralline algal diversity in response to ocean acidification. GLOBAL CHANGE BIOLOGY 2021; 27:4785-4798. [PMID: 34268846 DOI: 10.1111/gcb.15757] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 06/17/2021] [Accepted: 06/17/2021] [Indexed: 06/13/2023]
Abstract
Calcified coralline algae are ecologically important in rocky habitats in the marine photic zone worldwide and there is growing concern that ocean acidification will severely impact them. Laboratory studies of these algae in simulated ocean acidification conditions have revealed wide variability in growth, photosynthesis and calcification responses, making it difficult to assess their future biodiversity, abundance and contribution to ecosystem function. Here, we apply molecular systematic tools to assess the impact of natural gradients in seawater carbonate chemistry on the biodiversity of coralline algae in the Mediterranean and the NW Pacific, link this to their evolutionary history and evaluate their potential future biodiversity and abundance. We found a decrease in the taxonomic diversity of coralline algae with increasing acidification with more than half of the species lost in high pCO2 conditions. Sporolithales is the oldest order (Lower Cretaceous) and diversified when ocean chemistry favoured low Mg calcite deposition; it is less diverse today and was the most sensitive to ocean acidification. Corallinales were also reduced in cover and diversity but several species survived at high pCO2 ; it is the most recent order of coralline algae and originated when ocean chemistry favoured aragonite and high Mg calcite deposition. The sharp decline in cover and thickness of coralline algal carbonate deposits at high pCO2 highlighted their lower fitness in response to ocean acidification. Reductions in CO2 emissions are needed to limit the risk of losing coralline algal diversity.
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Affiliation(s)
- Viviana Peña
- BioCost Research Group, Facultad de Ciencias, Centro de Investigaciones Científicas Avanzadas (CICA), Universidade da Coruña, A Coruña, Spain
- Institut de Systématique, Évolution, Biodiversité (ISYEB), Muséum national d'Histoire naturelle, CNRS, Sorbonne Université, EPHE, Université des Antilles, Paris, France
| | - Ben P Harvey
- Shimoda Marine Research Center, University of Tsukuba, Shizuoka, Japan
| | - Sylvain Agostini
- Shimoda Marine Research Center, University of Tsukuba, Shizuoka, Japan
| | - Lucia Porzio
- Shimoda Marine Research Center, University of Tsukuba, Shizuoka, Japan
| | - Marco Milazzo
- Department of Earth and Marine Sciences (DiSTeM), University of Palermo, Palermo, Italy
| | - Paulo Horta
- Laboratory of Phycology, Department of Botany, Center for Biological Sciences, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Line Le Gall
- Institut de Systématique, Évolution, Biodiversité (ISYEB), Muséum national d'Histoire naturelle, CNRS, Sorbonne Université, EPHE, Université des Antilles, Paris, France
| | - Jason M Hall-Spencer
- Shimoda Marine Research Center, University of Tsukuba, Shizuoka, Japan
- School of Biological and Marine Sciences, University of Plymouth, Plymouth, UK
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24
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Costa DDA, Dolbeth M, Prata J, da Silva FDA, da Silva GMB, de Freitas PRS, Christoffersen ML, de Lima SFB, Massei K, de Lucena RFP. Marine invertebrates associated with rhodoliths/maërl beds from northeast Brazil (State of Paraíba). Biodivers Data J 2021; 9:e62736. [PMID: 34512095 PMCID: PMC8390885 DOI: 10.3897/bdj.9.e62736] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Accepted: 05/27/2021] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND This study investigates the marine macroinvertebrate fauna of rhodolith beds (non-geniculated red corallinaceaous algae) in northeast Brazilian. A total of 57 species were identified, belonging to six phyla (Platyhelminthes, Annelida, Sipuncula, Mollusca, Arthropoda and Echinodermata), of which 50 are considered here as new records for the Paraíba State. Annelids (Class Polychaeta) were the most representative taxa in Miramar and Seixas Beaches, while molluscs were dominant in Maceió Beach. NEW INFORMATION This is the first study that includes an identification key, diagnostic features and distribution patterns worldwide and local (including new records) of the marine invertebrate fauna associated with rhodolith beds in northeast Brazil (State of Paraíba). Sampling events were performed in 2018, at low tide in the intertidal to shallow subtidal zones (1.5 and 4.0 m depth), in Miramar, Seixas and Maceió Beaches. A total of 17 species were found for the first time on Seixas Beach, as well as all identified species for Miramar and Maceió. This study tries to contribute to the knowledge of marine invertebrates in northeast Brazilian shallow habitats, providing a baseline for future environmental studies.
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Affiliation(s)
- Dimítri de Araújo Costa
- CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, Matosinhos, PortugalCIIMAR - Interdisciplinary Centre of Marine and Environmental ResearchMatosinhosPortugal
- UFPB - Federal University of Paraíba, DSE - Department of Systematics and Ecology, João Pessoa, BrazilUFPB - Federal University of Paraíba, DSE - Department of Systematics and EcologyJoão PessoaBrazil
- Sea Servin, Aquário Paraíba, João Pessoa, BrazilSea Servin, Aquário ParaíbaJoão PessoaBrazil
- InPact - Interinstitutional Relations of the Research and Action Institute, João Pessoa, BrazilInPact - Interinstitutional Relations of the Research and Action InstituteJoão PessoaBrazil
| | - Marina Dolbeth
- CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, Matosinhos, PortugalCIIMAR - Interdisciplinary Centre of Marine and Environmental ResearchMatosinhosPortugal
| | - Jessica Prata
- UFPB - Federal University of Paraíba, DCB - Department of Biological Sciences, Areia, BrazilUFPB - Federal University of Paraíba, DCB - Department of Biological SciencesAreiaBrazil
| | - Francisco de Assis da Silva
- UFPB - Federal University of Paraíba, DSE - Department of Systematics and Ecology, João Pessoa, BrazilUFPB - Federal University of Paraíba, DSE - Department of Systematics and EcologyJoão PessoaBrazil
| | - Geuba Maria Bernardo da Silva
- UFPB - Federal University of Paraíba, DSE - Department of Systematics and Ecology, João Pessoa, BrazilUFPB - Federal University of Paraíba, DSE - Department of Systematics and EcologyJoão PessoaBrazil
| | - Paulo Ragner Silva de Freitas
- IFPI - Federal Institute of Education, Science and Technology of Piauí, Uruçuí, BrazilIFPI - Federal Institute of Education, Science and Technology of PiauíUruçuíBrazil
| | - Martin Lindsey Christoffersen
- UFPB - Federal University of Paraíba, DSE - Department of Systematics and Ecology, João Pessoa, BrazilUFPB - Federal University of Paraíba, DSE - Department of Systematics and EcologyJoão PessoaBrazil
| | - Silvio Felipe Barbosa de Lima
- UFPB - Federal University of Paraíba, DSE - Department of Systematics and Ecology, João Pessoa, BrazilUFPB - Federal University of Paraíba, DSE - Department of Systematics and EcologyJoão PessoaBrazil
- UFCG - Federal University of Campina Grande, CFP - Centro de Formação de Professores, UACEN - Unidade Acadêmica de Ciências Exatas e da Natureza, Cajazeiras, BrazilUFCG - Federal University of Campina Grande, CFP - Centro de Formação de Professores, UACEN - Unidade Acadêmica de Ciências Exatas e da NaturezaCajazeirasBrazil
| | - Karina Massei
- InPact - Interinstitutional Relations of the Research and Action Institute, João Pessoa, BrazilInPact - Interinstitutional Relations of the Research and Action InstituteJoão PessoaBrazil
| | - Reinaldo Farias Paiva de Lucena
- UFPB - Federal University of Paraíba, DSE - Department of Systematics and Ecology, João Pessoa, BrazilUFPB - Federal University of Paraíba, DSE - Department of Systematics and EcologyJoão PessoaBrazil
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25
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Sañé E, Ingrassia M, Chiocci FL, Argenti L, Martorelli E. Characterization of rhodolith beds-related backscatter facies from the western Pontine Archipelago (Mediterranean Sea). MARINE ENVIRONMENTAL RESEARCH 2021; 169:105339. [PMID: 33932846 DOI: 10.1016/j.marenvres.2021.105339] [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: 12/10/2020] [Revised: 04/06/2021] [Accepted: 04/10/2021] [Indexed: 06/12/2023]
Abstract
Rhodoliths (nodular calcareous red algae) are considered one of the most important bioengineers in the Mediterranean Sea, making rhodolith beds ecologically relevant ecosystems. On the insular shelf surrounding the western Pontine Archipelago (depth from 43 to 112 m), rhodolith beds were identified through the analysis of an extensive dataset of grab samples and videos to ground-truth the backscatter acoustic facies. Six acoustic facies (low backscatter, dishomogeneous low-backscatter, dishomogeneous high-backscatter, high-backscatter, rocks and high backscatter, and rocks and medium backscatter) were recognized. We studied how rhodoliths characteristics (density, morphotype, size and structure) differently influence the backscatter signature. At the western Pontine Archipelago, rhodolith beds are mainly represented by facies dishomogeneous high backscatter, high backscatter, high backscatter with rocks, and medium backscatter with rocks. The obtained results increase both the knowledge on the heterogeneous structure of such ecologically relevant benthic habitat and highlight the use of distinctive acoustic facies for their identification. Finally, the used approach could be considered a useful method for indirect detection and mapping of rhodolith beds.
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Affiliation(s)
- E Sañé
- CoNISMa (Consorzio Nazionale Interuniversitario per le Scienze del Mare), Rome, Italy.
| | - M Ingrassia
- CNR-IGAG (Istituto di Geologia Ambientale e Geoingegneria), UOS Roma, P.le A. Moro 5, 00185, Rome, Italy
| | - F L Chiocci
- Sapienza University of Rome, P.le A. Moro 5, 00185, Rome, Italy
| | - L Argenti
- Via Clarice Tartufari 161, 00128, Rome, Italy
| | - E Martorelli
- CNR-IGAG (Istituto di Geologia Ambientale e Geoingegneria), UOS Roma, P.le A. Moro 5, 00185, Rome, Italy
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26
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Koerich G, Costa GB, Sissini MN, Ortiz CL, Canever BF, Oliveira W, Tonkin JD, Horta PA. Physiology, niche characteristics and extreme events: Current and future habitat suitability of a rhodolith-forming species in the Southwestern Atlantic. MARINE ENVIRONMENTAL RESEARCH 2021; 169:105394. [PMID: 34166865 DOI: 10.1016/j.marenvres.2021.105394] [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: 02/17/2021] [Revised: 06/10/2021] [Accepted: 06/14/2021] [Indexed: 06/13/2023]
Abstract
Given the ecological and biogeochemical importance of rhodolith beds, it is necessary to investigate how future environmental conditions will affect these organisms. We investigated the impacts of increased nutrient concentrations, acidification, and marine heatwaves on the performance of the rhodolith-forming species Lithothamnion crispatum in a short-term experiment, including the recovery of individuals after stressor removal. Furthermore, we developed an ecological niche model to establish which environmental conditions determine its current distribution along the Brazilian coast and to project responses to future climate scenarios. Although L. crispatum suffered a reduction in photosynthetic performance when exposed to stressors, they returned to pre-experiment values following the return of individuals to control conditions. The model showed that the most important variables in explaining the current distribution of L. crispatum on the Brazilian coast were maximum nitrate and temperature. In future ocean conditions, the model predicted a range expansion of habitat suitability for this species of approximately 58.5% under RCP 8.5. Physiological responses to experimental future environmental conditions corroborated model predictions of the expansion of this species' habitat suitability in the future. This study, therefore, demonstrates the benefits of applying combined approaches to examine potential species responses to climate-change drivers from multiple angles.
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Affiliation(s)
- Gabrielle Koerich
- Phycology Laboratory, Botanical Department, Federal University of Santa Catarina, 88040-970, Florianópolis, Santa Catarina, Brazil; Postgraduate Program in Ecology, Federal University of Santa Catarina, 88040-970, Florianópolis, Santa Catarina, Brazil; School of Biological Sciences, University of Canterbury, Private Bag 4800, Christchurch, 8140, New Zealand.
| | - Giulia Burle Costa
- Phycology Laboratory, Botanical Department, Federal University of Santa Catarina, 88040-970, Florianópolis, Santa Catarina, Brazil; Postgraduate Program in Oceanography, Federal University of Santa Catarina, 88040-970, Florianópolis, Santa Catarina, Brazil
| | - Marina Nasri Sissini
- Phycology Laboratory, Botanical Department, Federal University of Santa Catarina, 88040-970, Florianópolis, Santa Catarina, Brazil; Postgraduate Program in Ecology, Federal University of Santa Catarina, 88040-970, Florianópolis, Santa Catarina, Brazil
| | - Carlos Lopez Ortiz
- Phycology Laboratory, Botanical Department, Federal University of Santa Catarina, 88040-970, Florianópolis, Santa Catarina, Brazil; Postgraduate Program in Ecology, Federal University of Bahia, Salvador, Brazil
| | | | - Willian Oliveira
- Phycology Laboratory, Botanical Department, Federal University of Santa Catarina, 88040-970, Florianópolis, Santa Catarina, Brazil
| | - Jonathan D Tonkin
- School of Biological Sciences, University of Canterbury, Private Bag 4800, Christchurch, 8140, New Zealand
| | - Paulo Antunes Horta
- Phycology Laboratory, Botanical Department, Federal University of Santa Catarina, 88040-970, Florianópolis, Santa Catarina, Brazil; Postgraduate Program in Ecology, Federal University of Santa Catarina, 88040-970, Florianópolis, Santa Catarina, Brazil; Postgraduate Program in Oceanography, Federal University of Santa Catarina, 88040-970, Florianópolis, Santa Catarina, Brazil
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Qui-Minet ZN, Davoult D, Grall J, Delaunay C, Six C, Cariou T, Martin S. Physiology of maerl algae: Comparison of inter- and intraspecies variations. JOURNAL OF PHYCOLOGY 2021; 57:831-848. [PMID: 33316844 DOI: 10.1111/jpy.13119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 10/09/2020] [Accepted: 11/08/2020] [Indexed: 06/12/2023]
Abstract
Free-living red coralline algae play an important role in the carbon and carbonate cycles of coastal environments. In this study, we examined the physiology of free-living coralline algae-forming maerl beds in the Bay of Brest (Brittany, France), where Lithothamnion corallioides is the dominant maerl (i.e., rhodolith) species. Phymatolithon calcareum and Lithophyllum incrustans are also present (in lower abundances) at a specific site in the bay. We aimed to assess how maerl physiology is affected by seasonality and/or local environmental variations at the inter- and intraspecific levels. Physiological measurements (respiration, photosynthetic, and calcification rates) were performed using incubation chambers in winter and summer to compare (1) the dominant maerl species at three sites and (2) three coexisting maerl species at one site. Comparison of the three coexisting maerl species suggests that L. corallioides is the best adapted to the current environmental conditions in the Bay of Brest, because this species is the most robust to dissolution in the dark in winter and has the highest calcification efficiency in the light. Comparisons of L. corallioides metabolic rates between stations showed that morphological variations within this species are the main factor affecting its photosynthetic and calcification rates. Environmental factors such as freshwater inputs also affect its calcification rates in the dark. In addition to interspecies variation in maerl physiology, there were intraspecific variations associated with direct (water physico-chemistry) or indirect (morphology) local environmental conditions. This study demonstrates the plasticity of maerl physiology in response to environmental changes, which is fundamental for maerl persistence.
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Affiliation(s)
- Zujaila Nohemy Qui-Minet
- CNRS, UMR 7144 Adaptation et Diversité en Milieu Marin, Station Biologique de Roscoff, Sorbonne Université, Place Georges Teissier, 29688, Roscoff Cedex, France
| | - Dominique Davoult
- CNRS, UMR 7144 Adaptation et Diversité en Milieu Marin, Station Biologique de Roscoff, Sorbonne Université, Place Georges Teissier, 29688, Roscoff Cedex, France
| | - Jacques Grall
- IUEM, Université de Bretagne Occidentale, Place Nicolas Copernic, 29280, Plouzané, France
| | - Coralie Delaunay
- CNRS, UMR 7144 Adaptation et Diversité en Milieu Marin, Station Biologique de Roscoff, Sorbonne Université, Place Georges Teissier, 29688, Roscoff Cedex, France
| | - Christophe Six
- CNRS, UMR 7144 Adaptation et Diversité en Milieu Marin, Station Biologique de Roscoff, Sorbonne Université, Place Georges Teissier, 29688, Roscoff Cedex, France
| | - Thierry Cariou
- CNRS, Fédération de Recherche FR2424, Station Biologique de Roscoff, Sorbonne Université, Place Georges Teissier, 29680, Roscoff, France
| | - Sophie Martin
- CNRS, UMR 7144 Adaptation et Diversité en Milieu Marin, Station Biologique de Roscoff, Sorbonne Université, Place Georges Teissier, 29688, Roscoff Cedex, France
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Calcification in free-living coralline algae is strongly influenced by morphology: Implications for susceptibility to ocean acidification. Sci Rep 2021; 11:11232. [PMID: 34045570 PMCID: PMC8160205 DOI: 10.1038/s41598-021-90632-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 05/12/2021] [Indexed: 11/13/2022] Open
Abstract
Rhodolith beds built by free-living coralline algae are important ecosystems for marine biodiversity and carbonate production. Yet, our mechanistic understanding regarding rhodolith physiology and its drivers is still limited. Using three rhodolith species with different branching morphologies, we investigated the role of morphology in species’ physiology and the implications for their susceptibility to ocean acidification (OA). For this, we determined the effects of thallus topography on diffusive boundary layer (DBL) thickness, the associated microscale oxygen and pH dynamics and their relationship with species’ metabolic and light and dark calcification rates, as well as species’ responses to short-term OA exposure. Our results show that rhodolith branching creates low-flow microenvironments that exhibit increasing DBL thickness with increasing branch length. This, together with species’ metabolic rates, determined the light-dependent pH dynamics at the algal surface, which in turn dictated species’ calcification rates. While these differences did not translate in species-specific responses to short-term OA exposure, the differences in the magnitude of diurnal pH fluctuations (~ 0.1–1.2 pH units) between species suggest potential differences in phenotypic plasticity to OA that may result in different susceptibilities to long-term OA exposure, supporting the general view that species’ ecomechanical characteristics must be considered for predicting OA responses.
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Carneiro PBDM, Lima JPD, Bandeira ÊVP, Ximenes Neto AR, Rocha Barreira CDA, Tâmega FTDS, Matthews-Cascon H, Franklin Junior W, Morais JOD. Structure, growth and CaCO 3 production in a shallow rhodolith bed from a highly energetic siliciclastic-carbonate coast in the equatorial SW Atlantic Ocean. MARINE ENVIRONMENTAL RESEARCH 2021; 166:105280. [PMID: 33611163 DOI: 10.1016/j.marenvres.2021.105280] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 02/03/2021] [Accepted: 02/10/2021] [Indexed: 06/12/2023]
Abstract
Rhodolith growth and CaCO3 production remain poorly quantified along the SW Atlantic Ocean, and it is difficult to relate the available measurements with biomass estimates. Suboptimal conditions may clarify how harsh environments influence nodule growth and abundance, elucidating their relationship. Off the energetic South American equatorial coast a rhodolith bed (~65 km2), formed mainly by Mesophyllum sp. and Lithophyllum sp., alters the regional sedimentary pattern and sustains a diverse biota. Its nodules present fast growth rates (2.8 mm year-1), but small biomasses (18 nodules∙m-2 covering 26 ± 3% of the substrate), resulting in a CaCO3 production of 163.33 g m-2∙year-1. Despite the small biomass, the bed seems stable, with living and dead nodules both on and inside the substrate. And the suboptimal environment apparently affects growth and abundance independently. Therefore, fast growth rates and relevant structural roles are not necessarily associated with dense rhodolith assemblages, and ecological assessments of rhodolith beds should consider the dynamics of both individual nodules and the whole population.
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Affiliation(s)
- Pedro Bastos de Macêdo Carneiro
- Universidade Federal do Delta do Parnaíba, Av. São Sebastião, 2819, Parnaíba, PI, CEP64202-020, Brazil; Universidade Federal do Ceará, Instituto de Ciências do Mar, Av. da Abolição, 3207, Fortaleza, CE, CEP0165-081, Brazil.
| | - Jadson Pinto de Lima
- Universidade Federal do Ceará, Instituto de Ciências do Mar, Av. da Abolição, 3207, Fortaleza, CE, CEP0165-081, Brazil
| | - Ênio Victor Paiva Bandeira
- Universidade Federal do Ceará, Departamento de Biologia, Campus do Pici, Bloco 906, Fortaleza, CE, CEP60440-900, Brazil
| | | | | | - Frederico Tapajós de Souza Tâmega
- Programa de Pós-Graduação em Oceanologia, Instituto de Oceanografia, Universidade Federal do Rio Grande, Av. Itália Km 8, Rio Grande, RS, CEP96203-900, Brazil
| | - Helena Matthews-Cascon
- Universidade Federal do Ceará, Departamento de Biologia, Campus do Pici, Bloco 906, Fortaleza, CE, CEP60440-900, Brazil
| | - Wilson Franklin Junior
- Universidade Federal do Ceará, Instituto de Ciências do Mar, Av. da Abolição, 3207, Fortaleza, CE, CEP0165-081, Brazil
| | - Jader Onofre de Morais
- Universidade Estadual do Ceará, Av. Dr. Silas Munguba, 1700, Fortaleza, CE, CEP: 60714-903, Brazil
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Calegario G, Freitas L, Appolinario LR, Venas T, Arruda T, Otsuki K, Masi B, Omachi C, Moreira AP, Soares AC, Rezende CE, Garcia G, Tschoeke D, Thompson C, Thompson FL. Conserved rhodolith microbiomes across environmental gradients of the Great Amazon Reef. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 760:143411. [PMID: 33243513 DOI: 10.1016/j.scitotenv.2020.143411] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 10/09/2020] [Accepted: 10/20/2020] [Indexed: 06/11/2023]
Abstract
The Great Amazon Reef System (GARS) covers an estimated area of 56,000 km2 off the mouth of the Amazon River. Living rhodolith holobionts are major benthic components of the GARS. However, it is unclear whether environmental conditions modulate the rhodolith microbiomes. Previous studies suggest that environmental parameters such as light, temperature, depth, and nutrients are drivers of rhodolith health. However, it is unclear whether rhodoliths from different sectors (northern, central, and southern) from the GARS have different microbiomes. We analysed metagenomes of rhodoliths (n = 10) and seawater (n = 6), obtained from the three sectors, by illumina shotgun sequencing (total read counts: 25.73 million). Suspended particulate material and isotopic composition of dissolved organic carbon (δ13C) indicated a strong influence of the Amazon river plume over the entire study area. However, photosynthetically active radiation at the bottom (PARb) was higher in the southern sector reefs, ranging from 10.1 to 14.3 E.m-2 day-1. The coralline calcareous red algae (CCA) Corallina caespitosa, Corallina officinalis, Lithophyllum cabiochiae, and Hapalidiales were present in the three sectors and in most rhodolith samples. Rhodolith microbiomes were very homogeneous across the studied area and differed significantly from seawater microbiomes. However, some subtle differences were found when comparing the rhodolith microbiomes from the northern and central sectors to the ones from the southern. Consistent with the higher light availability, two phyla were more abundant in rhodolith microbiomes from southern sites (Bacteroidetes, and Cyanobacteria). In addition, two functional categories were enhanced in southern rhodolith microbiomes (iron acquisition and metabolism, and photosynthesis). Phycobiliprotein-coding genes were also more abundant in southern locations, while the functional categories of respiration and sulfur metabolism were enhanced in northern and central rhodolith microbiomes, consistent with higher nutrient loads. The results confirm the conserved nature of rhodolith microbiomes even under pronounced environmental gradients. Subtle taxonomic and functional differences observed in rhodolith microbiomes may enable rhodoliths to thrive in changing environmental conditions.
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Affiliation(s)
- Gabriela Calegario
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Lucas Freitas
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Luciana Reis Appolinario
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Taina Venas
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Tatiane Arruda
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Koko Otsuki
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Bruno Masi
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Claudia Omachi
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; Universidade de São Paulo, Instituto Oceanográfico, Laboratório de Indicadores Ambientais, São Paulo, Brazil
| | - Ana Paula Moreira
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Ana Carolina Soares
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Carlos E Rezende
- Laboratório de Ciências Ambientais, Universidade Estadual Norte Fluminense (UENF), Campos, Brazil
| | - Gizele Garcia
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Diogo Tschoeke
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Cristiane Thompson
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
| | - Fabiano L Thompson
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
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Decadal (2006-2018) dynamics of Southwestern Atlantic's largest turbid zone reefs. PLoS One 2021; 16:e0247111. [PMID: 33617570 PMCID: PMC7899327 DOI: 10.1371/journal.pone.0247111] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 02/01/2021] [Indexed: 11/19/2022] Open
Abstract
Tropical reefs are declining rapidly due to climate changes and local stressors such as water quality deterioration and overfishing. The so-called marginal reefs sustain significant coral cover and growth but are dominated by fewer species adapted to suboptimal conditions to most coral species. However, the dynamics of marginal systems may diverge from that of the archetypical oligotrophic tropical reefs, and it is unclear whether they are more or less susceptible to anthropogenic stress. Here, we present the largest (100 fixed quadrats at five reefs) and longest time series (13 years) of benthic cover data for Southwestern Atlantic turbid zone reefs, covering sites under contrasting anthropogenic and oceanographic forcing. Specifically, we addressed how benthic cover changed among habitats and sites, and possible dominance-shift trends. We found less temporal variation in offshore pinnacles' tops than on nearshore ones and, conversely, higher temporal fluctuation on offshore pinnacles' walls than on nearshore ones. In general, the Abrolhos reefs sustained a stable coral cover and we did not record regional-level dominance shifts favoring other organisms. However, coral decline was evidenced in one reef near a dredging disposal site. Relative abundances of longer-lived reef builders showed a high level of synchrony, which indicates that their dynamics fluctuate under similar drivers. Therefore, changes on those drivers could threaten the stability of these reefs. With the intensification of thermal anomalies and land-based stressors, it is unclear whether the Abrolhos reefs will keep providing key ecosystem services. It is paramount to restrain local stressors that contributed to coral reef deterioration in the last decades, once reversal and restoration tend to become increasingly difficult as coral reefs degrade further and climate changes escalate.
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32
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Kim JH, Steller DL, Edwards MS. Variation in Photosynthetic Performance Relative to Thallus Microhabitat Heterogeneity in Lithothamnion australe (Rhodophyta, Corallinales) Rhodoliths. JOURNAL OF PHYCOLOGY 2021; 57:234-244. [PMID: 33020935 DOI: 10.1111/jpy.13080] [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: 06/17/2020] [Revised: 08/20/2020] [Accepted: 09/19/2020] [Indexed: 06/11/2023]
Abstract
Rhodoliths are free-living, coralline algae that create heterogeneous structure over sedimentary habitats. These fragile ecosystems are threatened by anthropogenic disturbances that reduce their size and three-dimensional structural complexity. We investigated how physical disturbance from boat moorings affects photosynthetic performance in the rhodolith Lithothamnion australe. Photosynthetic parameters were measured for intact rhodoliths and crushed rhodolith fragments of two sizes (ca. 1 and 2 cm diameter), while chlorophyll fluorescence was measured at the surface of rhodoliths of these two sizes, between the interior branches of the larger rhodoliths, and at the surface of 52 various sized (0.4-3.5 cm diameter) rhodoliths. Gross productivity and net productivity were 15% and 36% higher, respectively, in the smaller L. australe, while respiration was 10% higher in the larger individuals. Thallus crushing reduced gross productivity by 20% and 41%, and net productivity by 9% and 14% in the smaller and larger rhodoliths, respectively. It also reduced respiration by 33% and 60% in the smaller and larger rhodoliths, respectively. Fluorescence parameters were all greater at the surface of the larger L. australe than the smaller individuals, and greater at the surface than in the interior parts of the larger individuals. Across a range of rhodolith sizes, surface fluorescence parameters were at their maxima in 1.54 to 2.32 cm diameter individuals. These results show that L. australe's complex structure creates heterogeneity in photosynthesis and respiration between their surface and interior parts and among rhodolith sizes. This information can help predict how rhodoliths may respond to disturbance and environmental stressors.
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Affiliation(s)
- Ju-Hyoung Kim
- Faculty of Marine Applied Biosciences, Kunsan National University, Gunsan, 54150, South Korea
| | - Diana L Steller
- Moss Landing Marine Laboratories, 8272 Moss Landing Road, Moss Landing, California, 95039, USA
| | - Matthew S Edwards
- Department of Biology, San Diego State University, 5500 Campanile Dr., San Diego, California, 92182, USA
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Moura RL, Abieri ML, Castro GM, Carlos-Júnior LA, Chiroque-Solano PM, Fernandes NC, Teixeira CD, Ribeiro FV, Salomon PS, Freitas MO, Gonçalves JT, Neves LM, Hackradt CW, Felix-Hackradt F, Rolim FA, Motta FS, Gadig OBF, Pereira-Filho GH, Bastos AC. Tropical rhodolith beds are a major and belittled reef fish habitat. Sci Rep 2021; 11:794. [PMID: 33436906 PMCID: PMC7804296 DOI: 10.1038/s41598-020-80574-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Accepted: 12/23/2020] [Indexed: 11/16/2022] Open
Abstract
Understanding habitat-level variation in community structure provides an informed basis for natural resources’ management. Reef fishes are a major component of tropical marine biodiversity, but their abundance and distribution are poorly assessed beyond conventional SCUBA diving depths. Based on a baited-video survey of fish assemblages in Southwestern Atlantic’s most biodiverse region we show that species composition responded mainly to the two major hard-bottom megahabitats (reefs and rhodolith beds) and to the amount of light reaching the bottom. Both megahabitats encompassed typical reef fish assemblages but, unexpectedly, richness in rhodolith beds and reefs was equivalent. The dissimilar fish biomass and trophic structure in reefs and rhodolith beds indicates that these systems function based on contrasting energy pathways, such as the much lower herbivory recorded in the latter. Rhodolith beds, the dominant benthic megahabitat in the tropical Southwestern Atlantic shelf, play an underrated role as fish habitats, and it is critical that they are considered in conservation planning.
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Affiliation(s)
- Rodrigo L Moura
- Instituto de Biologia and SAGE/COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
| | - Maria L Abieri
- Instituto de Biologia and SAGE/COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Guilherme M Castro
- Instituto de Biologia and SAGE/COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Lélis A Carlos-Júnior
- Instituto de Biologia and SAGE/COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Pamela M Chiroque-Solano
- Instituto de Biologia and SAGE/COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Nicole C Fernandes
- Instituto de Biologia and SAGE/COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Carolina D Teixeira
- Instituto de Biologia and SAGE/COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Felipe V Ribeiro
- Instituto de Biologia and SAGE/COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Paulo S Salomon
- Instituto de Biologia and SAGE/COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Matheus O Freitas
- Instituto de Biologia and SAGE/COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Juliana T Gonçalves
- Instituto de Biologia and SAGE/COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Leonardo M Neves
- Laboratório de Ecologia Aquática e Educação Ambiental, Universidade Federal Rural do Rio de Janeiro, Três Rios, RJ, Brazil
| | - Carlos W Hackradt
- Laboratório de Ecologia e Conservação Marinha, Universidade Federal do Sul da Bahia, Porto Seguro, BA, Brazil
| | - Fabiana Felix-Hackradt
- Laboratório de Ecologia e Conservação Marinha, Universidade Federal do Sul da Bahia, Porto Seguro, BA, Brazil
| | - Fernanda A Rolim
- Instituto de Biociências, Laboratório de Pesquisa de Elasmobrânquios, Universidade Estadual Paulista, São Vicente, SP, Brazil
| | - Fábio S Motta
- Laboratório de Ecologia e Conservação Marinha, Instituto Do Mar, Universidade Federal de São Paulo, Santos, SP, Brazil
| | - Otto B F Gadig
- Instituto de Biociências, Laboratório de Pesquisa de Elasmobrânquios, Universidade Estadual Paulista, São Vicente, SP, Brazil
| | - Guilherme H Pereira-Filho
- Laboratório de Ecologia e Conservação Marinha, Instituto Do Mar, Universidade Federal de São Paulo, Santos, SP, Brazil
| | - Alex C Bastos
- Universidade Federal do Espírito Santo, Vitória, ES, Brazil
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Rendina F, Kaleb S, Caragnano A, Ferrigno F, Appolloni L, Donnarumma L, Russo GF, Sandulli R, Roviello V, Falace A. Distribution and Characterization of Deep Rhodolith Beds off the Campania coast (SW Italy, Mediterranean Sea). PLANTS (BASEL, SWITZERLAND) 2020; 9:E985. [PMID: 32759681 PMCID: PMC7463569 DOI: 10.3390/plants9080985] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 07/27/2020] [Accepted: 07/31/2020] [Indexed: 12/03/2022]
Abstract
Rhodolith beds (RBs) are bioconstructions characterized by coralline algae, which provide habitat for several associated species. Mediterranean RBs are usually located in the mesophotic zone (below 40 m), and thus are frequently remote and unexplored. Recently, the importance and vulnerability of these habitats have been recognized by the European Community and more attention has been drawn to their investigation and conservation. This study reports the results of an extensive monitoring program, carried out within the Marine Strategy Framework Directive (2008/56/EC), in six sites off the Campania coast (Italy, Mediterranean Sea). New insights were given into the distribution, cover, vitality (i.e., live/dead rhodolith ratio), structural complexity, and coralline algae composition of RBs. Remotely operated vehicles (ROV) investigations allowed the description of several RBs, and the discovery of a RB with rhodolith cover >65% offshore the Capri Island. Only two sites (Secchitiello and Punta Campanella) showed a very low mean cover of live rhodoliths (<10%); hence, not being classifiable as RBs. The collected rhodoliths were mostly small pralines (~2 cm), spheroidal to ellipsoidal, with growth-forms ranging from encrusting/warty to fruticose/lumpy. Coralline algae identification revealed a high diversity within each bed, with a total of 13 identified taxa. The genus Lithothamnion dominated all sites, and Phymatolithon calcareum and Lithothamnion corallioides, protected by the Habitats Directive (92/43/EEC), were detected in all RBs.
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Affiliation(s)
- Francesco Rendina
- Department of Science and Technology, University of Naples “Parthenope”, URL CoNISMa, Centro Direzionale, Is. C4, 80143 Naples, Italy; (F.F.); (L.A.); (L.D.); (G.F.R.); (R.S.)
| | - Sara Kaleb
- Department of Life Sciences, University of Trieste, Via L. Giorgieri 10, I-34127 Trieste, Italy; (S.K.); (A.C.); (A.F.)
| | - Annalisa Caragnano
- Department of Life Sciences, University of Trieste, Via L. Giorgieri 10, I-34127 Trieste, Italy; (S.K.); (A.C.); (A.F.)
| | - Federica Ferrigno
- Department of Science and Technology, University of Naples “Parthenope”, URL CoNISMa, Centro Direzionale, Is. C4, 80143 Naples, Italy; (F.F.); (L.A.); (L.D.); (G.F.R.); (R.S.)
| | - Luca Appolloni
- Department of Science and Technology, University of Naples “Parthenope”, URL CoNISMa, Centro Direzionale, Is. C4, 80143 Naples, Italy; (F.F.); (L.A.); (L.D.); (G.F.R.); (R.S.)
| | - Luigia Donnarumma
- Department of Science and Technology, University of Naples “Parthenope”, URL CoNISMa, Centro Direzionale, Is. C4, 80143 Naples, Italy; (F.F.); (L.A.); (L.D.); (G.F.R.); (R.S.)
| | - Giovanni Fulvio Russo
- Department of Science and Technology, University of Naples “Parthenope”, URL CoNISMa, Centro Direzionale, Is. C4, 80143 Naples, Italy; (F.F.); (L.A.); (L.D.); (G.F.R.); (R.S.)
| | - Roberto Sandulli
- Department of Science and Technology, University of Naples “Parthenope”, URL CoNISMa, Centro Direzionale, Is. C4, 80143 Naples, Italy; (F.F.); (L.A.); (L.D.); (G.F.R.); (R.S.)
| | - Valentina Roviello
- Department of Chemical, Materials and Production Engineering, University of Naples “Federico II”, Piazzale Tecchio 80, 80125 Naples, Italy;
| | - Annalisa Falace
- Department of Life Sciences, University of Trieste, Via L. Giorgieri 10, I-34127 Trieste, Italy; (S.K.); (A.C.); (A.F.)
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Genomic evidence of recent hybridization between sea turtles at Abrolhos Archipelago and its association to low reproductive output. Sci Rep 2020; 10:12847. [PMID: 32733067 PMCID: PMC7393485 DOI: 10.1038/s41598-020-69613-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 07/15/2020] [Indexed: 11/24/2022] Open
Abstract
Hybridization between sea turtle species occurs with particularly high frequency at two adjacent nesting areas in northeastern Brazil. To understand the outcomes of hybridization and their consequences for sea turtle conservation, we need to evaluate the extent of hybridization occurrence and possible deleterious effects in the hybrid progeny. Thus, we investigated the hypothesis of the existence of a new hybrid spot offshore of Brazil’s northeastern coast. The Abrolhos Archipelago is surrounded by the largest and richest coral reefs in the South Atlantic and is known to be a nesting site for loggerhead turtles (Carettacaretta). In this study, we performed a multidisciplinary investigation into levels of hybridization in sea turtles and their reproductive output in the Abrolhos beaches. Genetic data from mitochondrial DNA (mtDNA) and six autosomal markers showed that there are first-generation hybrid females nesting in Abrolhos, resulting from crossings between hawksbill males (Eretmochelysimbricata) and loggerhead females, and backcrossed hatchlings from both parental species. The type and extent of hybridization were characterized using genomic data obtained with the 3RAD method, which confirmed backcrossing between F1 hybrids and loggerhead turtles. The reproductive output data of Abrolhos nests suggests a disadvantage of hybrids when compared to loggerheads. For the first time, we have shown the association between hybridization and low reproductive success, which may represent a threat to sea turtle conservation.
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Increased irradiance availability mitigates the physiological performance of species of the calcifying green macroalga Halimeda in response to ocean acidification. ALGAL RES 2020. [DOI: 10.1016/j.algal.2020.101906] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Sporolithon franciscanum sp. nov. (Sporolithales, Rhodophyta), a New Rhodolith-Forming Species from Northeast Brazil. DIVERSITY 2020. [DOI: 10.3390/d12050199] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This paper describes Sporolithon franciscanum, a new rhodolith-forming species of non-geniculate coralline algae found at depths between 47–52 m near the São Francisco river mouth, the second largest and the most extensive drainage basin in Brazil, and also at the Abrolhos Bank, in the world´s largest rhodolith beds. DNA sequences from plastidial psbA and rbcL markers indicate that the species is unique compared to all other Sporolithon species that have thus far been sequenced. Since morpho-anatomical features of the new species are shared with some other Sporolithon species, its identification was only confirmed by DNA sequences.
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Abstract
During the greenhouse conditions prevailing in the early–middle Eocene, larger benthic foraminifers (LBF) spread out on carbonate platforms worldwide while rhodolith beds were scarcely represented. This reduction in rhodolith beds coincided with a relative decrease in coralline algal diversity and with a drastic decline of coral reef abundance. Middle Eocene rhodoliths from two tropical (San Jacinto Fold Belt in northern Colombia and Bahoruco Peninsula in the Dominican Republic) and two mid-latitude (Salinas Menores Ravine and Sierra del Zacatín in Southern Spain) localities were studied. Rhodolith rudstones in the tropical areas accumulated on relatively deep (several tens of meters) platform environments and were also redeposited in deeper settings downslope. In Salinas Menores, rhodoliths are dispersed in planktic foraminifer-rich marls. Miliolids are common in the infilling of constructional voids in these rhodoliths, indicating that they originally grew in shallow-water inner-shelf settings and afterwards they were transported to deeper environments. In Sierra del Zacatín, rhodoliths are scarce and coralline algae mainly occur as crusts attached to and intergrowing with corals. Here, LBF dominated shallow-water carbonate platforms. In terms of taxonomic composition, coralline algae of the order Hapalidiales are the most abundant in the study areas, followed by Sporolithales. The order Corallinales is poorly represented except in Salinas Menores, where it is relatively abundant and diverse. The impact of high temperatures due to high levels of atmospheric CO2 during the Eocene and widespread oligotrophic conditions, which favored formation of LBF-rich lithofacies, might account for the low abundance of rhodolith beds at mid and high latitudes. In contrast, the more productive equatorial regions would have favored the formation of rhodolith beds.
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Structure of Rhodolith Beds and Surrounding Habitats at the Doce River Shelf (Brazil). DIVERSITY-BASEL 2020. [DOI: 10.3390/d12020075] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The world’s largest rhodolith beds have been reported from the Brazilian continental shelf. Highly biodiverse beds are located in Southeast Brazil, but ecological aspects of these beds remain unknown. Despite their ecological importance, rhodolith beds (RBs) have recently been subjected to a severe threat, when more than 35 million cubic meters of mining residues slid down a mountainside on 5 November 2015, after a collapse of a gigantic dam upstream (the Mariana disaster), causing a huge impact on the Doce River. Our aim is to assess rhodolith beds and adjacent coralline formations on the Doce River Shelf (DRS) after the dam collapse. This paper describes the distribution, abundance, vitality, size and shape, as well as unmapped bryozoan rich sediment formations in this area, serving as baseline knowledge for environmental monitoring. Four distinct biogenic sea bottom habitats (bryozoan bottoms, rhodolith beds, carbonate concretions, and reefs) were recognized at different depth ranges with distribution indicated to be mostly related to the local sedimentary regime. Mud sediments dominated the seafloor up to 35 m depth. On the mid shelf, bryozoan bottoms were recorded from 35 to 45 m depth. Crustose coralline algae (CCA) occurring as rhodoliths and carbonate concretions extend over 1953 km2 in the mid and outer shelf. Rhodolith beds predominate in these areas, totaling 1521 km2 of sea bottom and were more abundant at depths between 45 and 65 m, occupying an extensive area south of the Doce River mouth. Northward, rhodolith beds are less abundant or absent likely due to the long-term deposition of fine sediments in this region. Carbonate concretions and reefs covered by CCA occupy sparse areas on the outer shelf (65–105 m depth). Differences in rhodolith features recorded, including coverage, density and size, may be related to the Doce River sedimentation and related factors (e.g., hydrodynamics, depth, and light). However, since there are no previous detailed studies on RBs along the DRS, we could not assess the impact of sedimentation of dam wastes on RBs’ abundance and density. In any case, these are valuable results for the further monitoring of long-term effects. Considering that the growth of these rhodoliths is relatively slow, and that they are affected by the sedimentation from the Doce River, the implementation of a management and conservation plan for this area is necessary in order to preserve this ecosystem.
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Carvalho VF, Assis J, Serrão EA, Nunes JM, Anderson AB, Batista MB, Barufi JB, Silva J, Pereira SMB, Horta PA. Environmental drivers of rhodolith beds and epiphytes community along the South Western Atlantic coast. MARINE ENVIRONMENTAL RESEARCH 2020; 154:104827. [PMID: 31780097 DOI: 10.1016/j.marenvres.2019.104827] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 07/31/2019] [Accepted: 10/21/2019] [Indexed: 06/10/2023]
Abstract
Environmental conditions shape the occurrence and abundance of habitat-building organisms at global scales. Rhodolith beds structure important hard substrate habitats for a large number of marine benthic organisms. These organisms can benefit local biodiversity levels, but also compete with rhodoliths for essential resources. Therefore, understanding the factors shaping the distribution of rhodoliths and their associated communities along entire distributional ranges is of much relevance for conservational biology, particularly in the scope of future environmental changes. Here we predict suitable habitat areas and identify the main environmental drivers of rhodoliths' variability and of associated epiphytes along a large-scale latitudinal gradient. Occurrence and abundance data were collected throughout the South-western Atlantic coast (SWA) and modelled against high resolution environmental predictors extracted from Bio-Oracle. The main drivers for rhodolith occurrence were light availability and temperature at the bottom of the ocean, while abundance was explained by nitrate, temperature and current velocity. Tropical regions showed the highest abundance of rhodoliths. No latitudinal pattern was detected in the variability of epiphytes abundance. However, significant differences were found between sampled sites regarding the composition of predominant taxa. The predictors influencing such differences were temperature and nitrate. The Tropical region is abundant in species with warm-water affinities, decreasing toward warm temperate region. The expressive occurrence of tropical species not referred before for warm temperate beds indicate a plausible tropicalization event.
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Affiliation(s)
- Vanessa F Carvalho
- Laboratório de Ficologia, Departamento de Botânica, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil.
| | - Jorge Assis
- CCMAR - Centre of Marine Sciences, Universidade do Algarve, Campus de Gambelas, Faro, Portugal
| | - Ester A Serrão
- CCMAR - Centre of Marine Sciences, Universidade do Algarve, Campus de Gambelas, Faro, Portugal
| | - José M Nunes
- Instituto de Biologia, Universidade Federal da Bahia, Salvador, Bahia, Brazil
| | - Antônio B Anderson
- Universidade Federal do Espírito Santo - Programa de Pós-graduação em Oceanografia - Laboratório de Ictiologia (Ictiolab) - Campus Goiabeiras - Vitória - ES - Brazil
| | - Manuela B Batista
- Laboratório de Ficologia, Departamento de Botânica, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - José B Barufi
- Laboratório de Ficologia, Departamento de Botânica, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - João Silva
- CCMAR - Centre of Marine Sciences, Universidade do Algarve, Campus de Gambelas, Faro, Portugal
| | - Sonia M B Pereira
- Departamento de Biologia, Universidade Federal Rural de Pernambuco, Recife, Brazil
| | - Paulo A Horta
- Laboratório de Ficologia, Departamento de Botânica, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil; Programa de Pós Graduação em Oceanografia, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil; Programa de Pós Graduação em Ecologia, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil.
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Costa GB, Ramlov F, de Ramos B, Koerich G, Gouvea L, Costa PG, Bianchini A, Maraschin M, Horta PA. Physiological damages of Sargassum cymosum and Hypnea pseudomusciformis exposed to trace metals from mining tailing. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:36486-36498. [PMID: 31732948 DOI: 10.1007/s11356-019-06691-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 10/02/2019] [Indexed: 06/10/2023]
Abstract
The damages of Mariana's mining mud in the physiology of the brown algae Sargassum cymosum and its main epiphytic, the red algae Hypnea pseudomusciformis, were evaluated by controlled essays. Seaweeds were exposed to presence or absence of mud, isolated or in biological association, for 5 and 15 days. Measured parameters were growth rates, biochemical descriptors, and the chemical investigation of concentration and metal profile of the mud dissolved in seawater. Results showed that the highest values for metals were Al > Fe > Mn > Zn in both exposure periods. The mud also affected the growth rate with lethality in both isolated and associative treatments with H. pseudomusciformis after 15 days. According to our redundancy analysis (RDA), the profile and concentration of all metallic elements can induce different physiological responses of the organisms. We were able to observe a higher physiological adaptive ability of S. cymosum against the long-term presence of metals by the synthesis of phenolic compounds, while the deviation of metabolic routes in H. pseudomusciformis can be addressed as the main responsible for its lethality. Moreover, the presence of Hypnea in associative treatments reduces Sargassum's detoxification ability. The present results reinforce the importance of biological interaction studies in a context of physiological resilience against mining mud pollution and mutual influences of species over the individual ability to avoid oxidative stress.
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Affiliation(s)
- Giulia Burle Costa
- Phycology Laboratory, Botany Department, Federal University of Santa Catarina, Florianópolis, SC, 88049-900, Brazil
| | - Fernanda Ramlov
- Plant Morphogenesis and Biochemistry Laboratory, Federal University of Santa Catarina, Florianópolis, SC, 88049-900, Brazil
| | - Bruna de Ramos
- Phycology Laboratory, Botany Department, Federal University of Santa Catarina, Florianópolis, SC, 88049-900, Brazil
| | - Gabrielle Koerich
- Phycology Laboratory, Botany Department, Federal University of Santa Catarina, Florianópolis, SC, 88049-900, Brazil
| | - Lidiane Gouvea
- Phycology Laboratory, Botany Department, Federal University of Santa Catarina, Florianópolis, SC, 88049-900, Brazil
| | - Patrícia Gomes Costa
- Biological Science Institute, Federal University of Rio Grande - FURG, Itália Avenue, Km 8, Campus Carreiros, Rio Grande, RS, 96203-900, Brazil
| | - Adalto Bianchini
- Biological Science Institute, Federal University of Rio Grande - FURG, Itália Avenue, Km 8, Campus Carreiros, Rio Grande, RS, 96203-900, Brazil
| | - Marcelo Maraschin
- Plant Morphogenesis and Biochemistry Laboratory, Federal University of Santa Catarina, Florianópolis, SC, 88049-900, Brazil
| | - Paulo A Horta
- Phycology Laboratory, Botany Department, Federal University of Santa Catarina, Florianópolis, SC, 88049-900, Brazil.
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Costa IO, Jesus PBD, de Jesus TDS, Souza PDS, Horta PA, Nunes JMDC. Reef-building coralline algae from the Southwest Atlantic: filling gaps with the recognition of Harveylithon (Corallinaceae, Rhodophyta) on the Brazilian coast. JOURNAL OF PHYCOLOGY 2019; 55:1370-1385. [PMID: 31494932 DOI: 10.1111/jpy.12917] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2017] [Accepted: 08/12/2019] [Indexed: 06/10/2023]
Abstract
The Southwest Atlantic is notable for having extensive reef areas cemented by nongeniculate coralline red algae. Based on an analysis of four genetic markers and morpho-anatomical features, we clarify the species of Harveylithon in the tropical and warm temperate Southwest Atlantic. Species delimitation methods (mBGD, ABGD, SPN, and PTP), using three markers (psbA, rbcL, and COI), support the recognition of three new species: H. catarinense sp. nov., H. maris-bahiensis sp. nov., and H. riosmenum sp. nov., previously incorrectly called Hydrolithon samoënse. Our findings highlight the importance of using an approach with several lines of evidence to solve the taxonomic status of the cryptic species.
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Affiliation(s)
- Iara Oliveira Costa
- Programa de Pós-Graduação em Botânica, Universidade Estadual de Feira de Santana, Av. Transnordestina, s/ n, Feira de Santana, BA, 44031-460, Brazil
| | - Priscila Barreto de Jesus
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, Rua do Matão 277, São Paulo, SP, 05508-090, Brazil
| | - Tiana da Silva de Jesus
- Laboratório de Algas Marinhas, Instituto de Biologia, Universidade Federal da Bahia, Rua Barão de Jeremoabo, s/n, Salvador, BA, 40.170-115, Brazil
| | - Poline Dos Santos Souza
- Laboratório de Algas Marinhas, Instituto de Biologia, Universidade Federal da Bahia, Rua Barão de Jeremoabo, s/n, Salvador, BA, 40.170-115, Brazil
| | - Paulo Antunes Horta
- Departamento de Botânica, Universidade Federal de Santa Catarina, Caixa Postal 476, Florianópolis, SC, 88010-970, Brazil
| | - José Marcos de Castro Nunes
- Laboratório de Algas Marinhas, Instituto de Biologia, Universidade Federal da Bahia, Rua Barão de Jeremoabo, s/n, Salvador, BA, 40.170-115, Brazil
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Bernard G, Romero-Ramirez A, Tauran A, Pantalos M, Deflandre B, Grall J, Grémare A. Declining maerl vitality and habitat complexity across a dredging gradient: Insights from in situ sediment profile imagery (SPI). Sci Rep 2019; 9:16463. [PMID: 31712682 PMCID: PMC6848171 DOI: 10.1038/s41598-019-52586-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 10/16/2019] [Indexed: 11/23/2022] Open
Abstract
Maerl beds form complex biogenic benthic habitats, characterized by high productivity as well as diverse biological communities. Disturbances associated with extraction and/or fishing activities using mobile bottom-contacting gears such as clam-dredges induce the most severe and long-term effects on these fragile habitats. We here investigated the effects of dredge-fishing on maerl in the bay of Brest (France). We quantified maerl beds structure and vitality across a fine scale quantified dredging intensity gradient through the acquisition of in-situ images of beds cross-section using Sediment Profile Imaging system (SPI). Declines in the proxies of maerl vitality and habitat complexity were measured across the gradient, and were associated with significant changes in the vertical distribution of live and dead maerl as well as of interstitial space. Fishing with dredges caused maerl mortality, substratum compaction, and decreasing habitat complexity. SPI imaging techniques also allowed for an assessment of changes in spatial heterogeneity that dredging created on several aspects of the structure and vitality of maerl beds. It suggests that direct and indirect disturbances induced by dredging are not acting at the same spatial scale, and can thereby differentially affect the ecosystem functions linked to vitality and habitat complexity.
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Affiliation(s)
| | | | - Adeline Tauran
- Université de Bordeaux, EPOC, UMR 5805, F-33615, Pessac, France.,IUEM UMS 3113, UBO, Brest, France
| | | | - Bruno Deflandre
- Université de Bordeaux, EPOC, UMR 5805, F-33615, Pessac, France
| | | | - Antoine Grémare
- Université de Bordeaux, EPOC, UMR 5805, F-33615, Pessac, France
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Pimentel CR, Vilar CC, Rolim FA, Abieri ML, Joyeux JC. New records of the snow bass Serranus chionaraia (Perciformes: Serranidae) confirm an established population in the Brazilian Province. JOURNAL OF FISH BIOLOGY 2019; 95:1346-1349. [PMID: 31490544 DOI: 10.1111/jfb.14135] [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: 06/05/2019] [Accepted: 09/05/2019] [Indexed: 06/10/2023]
Abstract
The snow bass Serranus chionaraia is a small-bodied reef fish presumed to be restricted to the Caribbean Province, with a single specimen captured south of the Amazon River mouth. Recent surveys with baited remote underwater stereo-video systems detected the species c. 1900 km southward. Meristic and morphometric characters of two specimens examined in this study confirmed the species identity, which greatly extends the species' range southward on the eastern coast of Brazil and indicates the presence of an established population of S. chionaraia in the Brazilian Province.
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Affiliation(s)
- Caio R Pimentel
- Departamento de Oceanografia, Universidade Federal do Espírito Santo, Vitória, Espírito Santo, Brazil
- Programa de Pós-Graduação em Oceanografia Ambiental, Universidade Federal do Espírito Santo, Vitória, Brazil
| | - Ciro C Vilar
- Departamento de Oceanografia, Universidade Federal do Espírito Santo, Vitória, Espírito Santo, Brazil
- Programa de Pós-Graduação em Oceanografia Ambiental, Universidade Federal do Espírito Santo, Vitória, Brazil
| | - Fernanda A Rolim
- Laboratório de Pesquisa em Elasmobrânquios, Universidade Estadual Paulista, São Vicente, São Paulo, Brazil
| | - Maria L Abieri
- Instituto de Biologia and SAGE/COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Jean-Christophe Joyeux
- Departamento de Oceanografia, Universidade Federal do Espírito Santo, Vitória, Espírito Santo, Brazil
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Freitas MO, Previero M, Leite JR, Francini-Filho RB, Minte-Vera CV, Moura RL. Age, growth, reproduction and management of Southwestern Atlantic's largest and endangered herbivorous reef fish, Scarus trispinosus Valenciennes, 1840. PeerJ 2019; 7:e7459. [PMID: 31531268 PMCID: PMC6718160 DOI: 10.7717/peerj.7459] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 07/11/2019] [Indexed: 11/20/2022] Open
Abstract
The Brazilian-endemic greenbeack parrotfish, Scarus trispinosus Valenciennes, 1840, is the largest herbivorous reef fish in the South Atlantic. Following the sharp decline of large carnivorous reef fishes, parrotfishes (Labridae: Scarinae) were progressively targeted by commercial fisheries in Brazil, resulting in a global population decline of 50% for S. trispinosus. Most of its remnant population is concentrated in the Abrolhos Bank, where the present study was conducted. We present novel information on age, growth and the reproductive cycle of S. trispinosus, based on 814 individuals obtained from commercial fisheries’ landings and scientific collections, between 2010 and 2013. Sex ratio was biased toward females (1:8), and spawning occurred year-round with discrete peaks in February-March and June-December. Increment analysis indicated annual deposition of growth rings in otoliths, which presented 1–22 rings. The asymptotic length at which growth is zero (L∞) was estimated from a Bayesian logistic regression at 85.28 cm, growth rate (K) at 0.14 year−1, and the theoretical age at zero size (t0) at 0.16. Subregional demographic structuring was detected, with predominance of slower-growing individuals in shallower inshore reefs and predominance of faster-growing and older individuals in deeper offshore sites. We demonstrate that S. trispinosus is highly vulnerable to over-exploitation due to its large size, long live and slow-growth, and review the management measures proposed since its Red List assessment in 2012.
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Affiliation(s)
- Matheus O Freitas
- Programa de Pós Graduação em Engenharia Ambiental, Universidade Federal do Paraná, Curitiba, Paraná, Brazil
| | - Marília Previero
- Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura, Universidade Estadual de Maringá, Maringá, Paraná, Brazil
| | - Jonas R Leite
- Instituto de Biologia and SAGE/COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ronaldo B Francini-Filho
- Departamento de Engenharia e Meio Ambiente, Universidade Federal da Paraíba, Rio Tinto, Paraiba, Brazil
| | | | - Rodrigo L Moura
- Instituto de Biologia and SAGE/COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
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Lin YV, Denis V. Acknowledging differences: number, characteristics, and distribution of marine benthic communities along Taiwan coast. Ecosphere 2019. [DOI: 10.1002/ecs2.2803] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Affiliation(s)
- Yuting Vicky Lin
- Institute of Oceanography National Taiwan University Taipei 10617 Taiwan
| | - Vianney Denis
- Institute of Oceanography National Taiwan University Taipei 10617 Taiwan
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Loiola M, Cruz ICS, Lisboa DS, Mariano-Neto E, Leão ZMAN, Oliveira MDM, Kikuchi RKP. Structure of marginal coral reef assemblages under different turbidity regime. MARINE ENVIRONMENTAL RESEARCH 2019; 147:138-148. [PMID: 31097215 DOI: 10.1016/j.marenvres.2019.03.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 03/11/2019] [Accepted: 03/27/2019] [Indexed: 06/09/2023]
Abstract
Sediment load can influence both the population distribution and structures of coral reef communities. We investigated whether coral assemblages on inshore and more turbid reefs differ from those on offshore reefs in the largest coral reefs of the Southwest Atlantic. We compared inshore and offshore reefs (with different turbidity climatologies) in terms of benthic and coral assemblage structures, abundances and individual sizes of coral populations and recruitment patterns. Unexpectedly, the inshore reefs showed higher coral cover and abundance, larger colonies and more recruits. This finding is related to the predominance of sediment-tolerant species on the turbid reefs. In contrast, only Mussismilia braziliensis (main builder of Abrolhos) showed better performance (greater coverage, larger diameter and more recruits) on offshore reefs, apparently behaving as a strong competitor in less turbid environments. These results reinforce the recent thinking of coral reef of turbid environments as resistant ecosystems and potential refuges considering the unnatural increase of sediment supply.
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Affiliation(s)
- Miguel Loiola
- Laboratory of Coral Reefs and Global Changes-RECOR, Institute of Geosciences, Federal University of Bahia (UFBA), Barão de Jeremoabo Street, Ondina, Salvador, 40210-340, Bahia, Brazil; Postgraduate Program in Ecology and Biomonitoring, Institute of Biology, Federal University of Bahia (UFBA), Barão de Jeremoabo Street, Ondina, Salvador, 40170-115, Bahia, Brazil.
| | - Igor C S Cruz
- Federal University of Bahia (UFBA), Department of Oceanography, Institute of Geosciences, Barão de Jeremoabo Street, Ondina, Salvador, 40210-340, Bahia, Brazil
| | - Danilo S Lisboa
- Laboratory of Coral Reefs and Global Changes-RECOR, Institute of Geosciences, Federal University of Bahia (UFBA), Barão de Jeremoabo Street, Ondina, Salvador, 40210-340, Bahia, Brazil
| | - Eduardo Mariano-Neto
- Postgraduate Program in Ecology and Biomonitoring, Institute of Biology, Federal University of Bahia (UFBA), Barão de Jeremoabo Street, Ondina, Salvador, 40170-115, Bahia, Brazil
| | - Zelinda M A N Leão
- Laboratory of Coral Reefs and Global Changes-RECOR, Institute of Geosciences, Federal University of Bahia (UFBA), Barão de Jeremoabo Street, Ondina, Salvador, 40210-340, Bahia, Brazil
| | - Marilia D M Oliveira
- Laboratory of Coral Reefs and Global Changes-RECOR, Institute of Geosciences, Federal University of Bahia (UFBA), Barão de Jeremoabo Street, Ondina, Salvador, 40210-340, Bahia, Brazil
| | - Ruy K P Kikuchi
- Laboratory of Coral Reefs and Global Changes-RECOR, Institute of Geosciences, Federal University of Bahia (UFBA), Barão de Jeremoabo Street, Ondina, Salvador, 40210-340, Bahia, Brazil
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Francini-Filho RB, Velásquez VM, da Silva MB, Rosa MR, Sumida PYG, Pinheiro HT, Rocha LA, Ferreira CEL, Francini CLB, de Souza Rosa R. Brazil. CORAL REEFS OF THE WORLD 2019. [DOI: 10.1007/978-3-319-92735-0_10] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Tedesco EC, Calderon EN, Seoane JCS, Moraes LE, Lopes LS, Da Silva NRS, Schiavetti A. Coral reef benthic assemblages of a Marine Protected Area in eastern Brazil: effect of reef habitats on the spatial pattern of species. J NAT HIST 2018. [DOI: 10.1080/00222933.2018.1552332] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Erik Costa Tedesco
- Laboratório de Etnoconservação e Áreas Protegidas, Departamento de Ciências Agrárias e Ambientais, Universidade Estadual de Santa Cruz, Ilhéus, Brazil
- Instituto Coral Vivo, Santa Cruz Cabrália, Brazil
- Programa de Pós-Graduação em Ecologia e Conservação da Biodiversidade, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Brazil
| | - Emiliano Nicolas Calderon
- Instituto Coral Vivo, Santa Cruz Cabrália, Brazil
- Programa de Pós-Graduação em Ciências Ambientais e Conservação, Núcleo em Ecologia e Desenvolvimento Socioambiental de Macaé, Universidade Federal do Rio de Janeiro, Macaé, Brazil
| | - José Carlos Sícoli Seoane
- Instituto Coral Vivo, Santa Cruz Cabrália, Brazil
- Instituto de Geociências, Departamento de Geologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | | | | | - Alexandre Schiavetti
- Laboratório de Etnoconservação e Áreas Protegidas, Departamento de Ciências Agrárias e Ambientais, Universidade Estadual de Santa Cruz, Ilhéus, Brazil
- Instituto Coral Vivo, Santa Cruz Cabrália, Brazil
- Centro para el Estudio de Sistemas Marinos, Centro Científico Tecnológico, Puerto Madryn, Argentina
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