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Bernal-Durán V, Donoso D, Piñones A, Jonsson PR, Benestan L, Landaeta MF, Naretto J, Gerard K, Haye PA, Gonzalez-Wevar C, Poulin E, Segovia NI. Combining population genomics and biophysical modelling to assess connectivity patterns in an Antarctic fish. Mol Ecol 2024; 33:e17360. [PMID: 38656687 DOI: 10.1111/mec.17360] [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: 01/15/2024] [Revised: 04/06/2024] [Accepted: 04/09/2024] [Indexed: 04/26/2024]
Abstract
Connectivity is a fundamental process of population dynamics in marine ecosystems. In the last decade, with the emergence of new methods, combining different approaches to understand the patterns of connectivity among populations and their regulation has become increasingly feasible. The Western Antarctic Peninsula (WAP) is characterized by complex oceanographic dynamics, where local conditions could act as barriers to population connectivity. Here, the notothenioid fish Harpagifer antarcticus, a demersal species with a complex life cycle (adults with poor swim capabilities and pelagic larvae), was used to assess connectivity along the WAP by combining biophysical modelling and population genomics methods. Both approaches showed congruent patterns. Areas of larvae retention and low potential connectivity, observed in the biophysical model output, coincide with four genetic groups within the WAP: (1) South Shetland Islands, (2) Bransfield Strait, (3) the central and (4) the southern area of WAP (Marguerite Bay). These genetic groups exhibited limited gene flow between them, consistent with local oceanographic conditions, which would represent barriers to larval dispersal. The joint effect of geographic distance and larval dispersal by ocean currents had a greater influence on the observed population structure than each variable evaluated separately. The combined effect of geographic distance and a complex oceanographic dynamic would be generating limited levels of population connectivity in the fish H. antarcticus along the WAP. Based on this, population connectivity estimations and priority areas for conservation were discussed, considering the marine protected area proposed for this threatened region of the Southern Ocean.
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Affiliation(s)
- Valentina Bernal-Durán
- Instituto Milenio Biodiversidad de Ecosistemas Antárticos y subAntárticos (MIBASE), Santiago, Chile
- Departamento de Ciencias Ecológicas, Instituto Milenio de Ecología y Biodiversidad (IEB), Universidad de Chile, Santiago, Chile
| | - David Donoso
- Instituto Milenio Biodiversidad de Ecosistemas Antárticos y subAntárticos (MIBASE), Santiago, Chile
- Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | - Andrea Piñones
- Instituto Milenio Biodiversidad de Ecosistemas Antárticos y subAntárticos (MIBASE), Santiago, Chile
- Instituto de Ciencias Marinas y Limnológicas (ICML) y Centro FONDAP IDEAL, Universidad Austral de Chile, Valdivia, Chile
- Centro COPAS COASTAL, Universidad de Concepción, Concepción, Chile
| | - Per R Jonsson
- Department of Marine Sciences, Tjärnö Marine Laboratory, University of Gothenburg, Strömstad, Sweden
| | - Laura Benestan
- Institut Français de Recherche pour l'Exploitation de la Mer, Centre du Pacifique, Vairao, Tahiti, French Polynesia
| | - Mauricio F Landaeta
- Laboratorio de Ictiología e Interacciones Biofísicas (LABITI), Instituto de Biología, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso, Chile
- Centro de Observación Marino para Estudios de Riesgos del Ambiente Costero (COSTA-R), Universidad de Valparaíso, Viña del Mar, Chile
| | | | - Karin Gerard
- Instituto Milenio Biodiversidad de Ecosistemas Antárticos y subAntárticos (MIBASE), Santiago, Chile
| | - Pilar A Haye
- Instituto Milenio en Socio-ecología Costera (SECOS), Departamento de Biología Marina, Facultadde Ciencias del Mar, Universidad Católica del Norte, Coquimbo, Chile
- Centro de Estudios Avanzados en Zonas Áridas (CEAZA), Coquimbo, Chile
| | - Claudio Gonzalez-Wevar
- Instituto Milenio Biodiversidad de Ecosistemas Antárticos y subAntárticos (MIBASE), Santiago, Chile
- Instituto de Ciencias Marinas y Limnológicas (ICML) y Centro FONDAP IDEAL, Universidad Austral de Chile, Valdivia, Chile
| | - Elie Poulin
- Instituto Milenio Biodiversidad de Ecosistemas Antárticos y subAntárticos (MIBASE), Santiago, Chile
- Departamento de Ciencias Ecológicas, Instituto Milenio de Ecología y Biodiversidad (IEB), Universidad de Chile, Santiago, Chile
| | - Nicolás I Segovia
- Instituto Milenio en Socio-ecología Costera (SECOS), Departamento de Biología Marina, Facultadde Ciencias del Mar, Universidad Católica del Norte, Coquimbo, Chile
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2
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Benedetti-Cecchi L, Bates AE, Strona G, Bulleri F, Horta E Costa B, Edgar GJ, Hereu B, Reed DC, Stuart-Smith RD, Barrett NS, Kushner DJ, Emslie MJ, García-Charton JA, Gonçalves EJ, Aspillaga E. Marine protected areas promote stability of reef fish communities under climate warming. Nat Commun 2024; 15:1822. [PMID: 38418445 PMCID: PMC10902350 DOI: 10.1038/s41467-024-44976-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 01/11/2024] [Indexed: 03/01/2024] Open
Abstract
Protection from direct human impacts can safeguard marine life, yet ocean warming crosses marine protected area boundaries. Here, we test whether protection offers resilience to marine heatwaves from local to network scales. We examine 71,269 timeseries of population abundances for 2269 reef fish species surveyed in 357 protected versus 747 open sites worldwide. We quantify the stability of reef fish abundance from populations to metacommunities, considering responses of species and functional diversity including thermal affinity of different trophic groups. Overall, protection mitigates adverse effects of marine heatwaves on fish abundance, community stability, asynchronous fluctuations and functional richness. We find that local stability is positively related to distance from centers of high human density only in protected areas. We provide evidence that networks of protected areas have persistent reef fish communities in warming oceans by maintaining large populations and promoting stability at different levels of biological organization.
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Affiliation(s)
| | - Amanda E Bates
- Department of Biology, University of Victoria, Victoria, Canada
| | | | - Fabio Bulleri
- Department of Biology, University of Pisa, URL CoNISMa, Via Derna 1, Pisa, Italy
| | - Barbara Horta E Costa
- CCMAR, Centre of Marine Sciences, University of Algarve, Building 7, Faro, 8005-139, Portugal
| | - Graham J Edgar
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Tasmania, Australia
- Reef Life Survey Foundation, Battery Point, Tasmania, Australia
| | - Bernat Hereu
- Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Facultat de Biologia, Institut de Recerca de la Biodiversitat (IRBIO), Universitat de Barcelona, Barcelona, Spain
| | - Dan C Reed
- Marine Science Institute, University of California Santa Barbara, Santa Barbara, 93106, CA, USA
| | - Rick D Stuart-Smith
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Tasmania, Australia
- Reef Life Survey Foundation, Battery Point, Tasmania, Australia
| | - Neville S Barrett
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Tasmania, Australia
| | | | - Michael J Emslie
- Australian Institute of Marine Science, Townsville, Queensland, Australia
| | | | - Emanuel J Gonçalves
- MARE - Marine and Environmental Sciences Centre, ISPA - Instituto Universitário, Lisbon, Portugal
| | - Eneko Aspillaga
- Instituto Mediterráneo de Estudios Avanzados (IMEDEA, CSIC-UIB), 07190, Esporles, Spain
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3
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Marques R, Brazo A, Aspillaga E, Zimmermann M, Hereu B, Saragoni G, Mercière A, Crec'Hriou R, Mercader M, Verdoit-Jarraya M, Cadène F, Lenfant P. Movements and spatial distribution of an endangered fish (Sciaena umbra) within a marine protected area. Sci Rep 2024; 14:3103. [PMID: 38326313 PMCID: PMC10850223 DOI: 10.1038/s41598-023-50194-1] [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: 07/05/2023] [Accepted: 12/16/2023] [Indexed: 02/09/2024] Open
Abstract
The brown meagre (Sciaena umbra) is an endangered species, which requires specific protection measures to ensure its conservation. These measures need to be informed by high-quality scientific knowledge on their space use patterns. Here, we used acoustic telemetry to assess its seasonal movement patterns and habitat use within a marine protected area (MPA). Our results suggested that S. umbra is a highly sedentary species (home range < 1.0 km2) and, therefore, the MPA is extensive enough to protect the local population. Their population was discretely distributed in two main areas within the MPA, which was likely a result of habitat segregation and density-dependent movements. The temporal variability of their movements further uncovered when and where spawning occurs (mainly, but probably not only, in the fully protected area in June) and indicated that spillover of this species is limited but still possible. Overall, we highlight the importance of MPAs in the recovery of S. umbra, we advocate the need to perpetuate the current national fishing bans and extend it to other countries in the Mediterranean region, and we emphasize that considering the fine-scale movements of S. umbra in future management actions is key to achieving a successful recovery of their populations.
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Affiliation(s)
- R Marques
- Centre de Formation et de Recherche sur les Environnements Méditerranéens, UMR 5110, Université de Perpignan, Via Domitia, 66860, Perpignan, France
- Centre de Formation et de Recherche sur les Environnements Méditerranéens, UMR 5110, CNRS, 66860, Perpignan, France
- Centre de Recherche sur les Ecosystèmes Marins - Plateforme Intervention et Expertise en Environnement Marin (CREM-IEEM), Impasse du Solarium, 66420, Le Barcares, France
- German Center for Marine Biodiversity Research (DZMB), Senckenberg am Meer, Martin-Luther-King Platz 3, 20146, Hamburg, Germany
| | - A Brazo
- Centre de Formation et de Recherche sur les Environnements Méditerranéens, UMR 5110, Université de Perpignan, Via Domitia, 66860, Perpignan, France
- Centre de Formation et de Recherche sur les Environnements Méditerranéens, UMR 5110, CNRS, 66860, Perpignan, France
- Centre de Recherche sur les Ecosystèmes Marins - Plateforme Intervention et Expertise en Environnement Marin (CREM-IEEM), Impasse du Solarium, 66420, Le Barcares, France
| | - E Aspillaga
- Institut Mediterrani d'Estudis Avançats, IMEDEA (CSIC-UIB), C/Miquel Marquès 21, 07190, Esporles, Balearic Islands, Spain
| | - M Zimmermann
- Centre de Formation et de Recherche sur les Environnements Méditerranéens, UMR 5110, Université de Perpignan, Via Domitia, 66860, Perpignan, France
- Centre de Formation et de Recherche sur les Environnements Méditerranéens, UMR 5110, CNRS, 66860, Perpignan, France
- Centre de Recherche sur les Ecosystèmes Marins - Plateforme Intervention et Expertise en Environnement Marin (CREM-IEEM), Impasse du Solarium, 66420, Le Barcares, France
| | - B Hereu
- Department of Evolutionary Biology, Ecology and Environmental Sciences, Institut de Recerca de la Biodiversitat (IRBIO), University of Barcelona (UB), Av. Diagonal 643, 08028, Barcelona, Spain
| | - G Saragoni
- Centre de Formation et de Recherche sur les Environnements Méditerranéens, UMR 5110, Université de Perpignan, Via Domitia, 66860, Perpignan, France
- Centre de Formation et de Recherche sur les Environnements Méditerranéens, UMR 5110, CNRS, 66860, Perpignan, France
- Centre de Recherche sur les Ecosystèmes Marins - Plateforme Intervention et Expertise en Environnement Marin (CREM-IEEM), Impasse du Solarium, 66420, Le Barcares, France
| | - A Mercière
- PSL Research University: EPHE-CNRS-UPVD, UAR 3278 CRIOBE, BP 1013, 98729, Papetoai, Mo'orea, French Polynesia
- Laboratoire d'Excellence «CORAIL», Papetoai, Moorea, French Polynesia
| | - R Crec'Hriou
- Station Biologique CNRS-Sorbonne Université - Service Observation, Place Georges Teissier CS90074, 29688, Roscoff, France
| | - M Mercader
- Centre de Formation et de Recherche sur les Environnements Méditerranéens, UMR 5110, Université de Perpignan, Via Domitia, 66860, Perpignan, France
- Centre de Formation et de Recherche sur les Environnements Méditerranéens, UMR 5110, CNRS, 66860, Perpignan, France
- Centre de Recherche sur les Ecosystèmes Marins - Plateforme Intervention et Expertise en Environnement Marin (CREM-IEEM), Impasse du Solarium, 66420, Le Barcares, France
- Marine Eco-Evo-Devo Unit, Okinawa Institute of Science and Technology, Onna-son, Okinawa, 904-0495, Japan
| | - M Verdoit-Jarraya
- Centre de Formation et de Recherche sur les Environnements Méditerranéens, UMR 5110, Université de Perpignan, Via Domitia, 66860, Perpignan, France
- Centre de Formation et de Recherche sur les Environnements Méditerranéens, UMR 5110, CNRS, 66860, Perpignan, France
- Centre de Recherche sur les Ecosystèmes Marins - Plateforme Intervention et Expertise en Environnement Marin (CREM-IEEM), Impasse du Solarium, 66420, Le Barcares, France
| | - F Cadène
- Réserve Naturelle Marine de Cerbère Banyuls, 5 Rue Roger David, 66650, Banyuls-sur-Mer, France
| | - Philippe Lenfant
- Centre de Formation et de Recherche sur les Environnements Méditerranéens, UMR 5110, Université de Perpignan, Via Domitia, 66860, Perpignan, France.
- Centre de Formation et de Recherche sur les Environnements Méditerranéens, UMR 5110, CNRS, 66860, Perpignan, France.
- Centre de Recherche sur les Ecosystèmes Marins - Plateforme Intervention et Expertise en Environnement Marin (CREM-IEEM), Impasse du Solarium, 66420, Le Barcares, France.
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4
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James M, Polton J, Mayorga-Adame C, Howell K, Knights A. Assessing the influence of behavioural parameterisation on the dispersal of larvae in marine systems. Ecol Modell 2023. [DOI: 10.1016/j.ecolmodel.2022.110252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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5
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Seascape genomics of common dolphins (Delphinus delphis) reveals adaptive diversity linked to regional and local oceanography. BMC Ecol Evol 2022; 22:88. [PMID: 35818031 PMCID: PMC9275043 DOI: 10.1186/s12862-022-02038-1] [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: 03/02/2022] [Accepted: 06/14/2022] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
High levels of standing genomic variation in wide-ranging marine species may enhance prospects for their long-term persistence. Patterns of connectivity and adaptation in such species are often thought to be influenced by spatial factors, environmental heterogeneity, and oceanographic and geomorphological features. Population-level studies that analytically integrate genome-wide data with environmental information (i.e., seascape genomics) have the potential to inform the spatial distribution of adaptive diversity in wide-ranging marine species, such as many marine mammals. We assessed genotype-environment associations (GEAs) in 214 common dolphins (Delphinus delphis) along > 3000 km of the southern coast of Australia.
Results
We identified 747 candidate adaptive SNPs out of a filtered panel of 17,327 SNPs, and five putatively locally-adapted populations with high levels of standing genomic variation were disclosed along environmentally heterogeneous coasts. Current velocity, sea surface temperature, salinity, and primary productivity were the key environmental variables associated with genomic variation. These environmental variables are in turn related to three main oceanographic phenomena that are likely affecting the dispersal of common dolphins: (1) regional oceanographic circulation, (2) localised and seasonal upwellings, and (3) seasonal on-shelf circulation in protected coastal habitats. Signals of selection at exonic gene regions suggest that adaptive divergence is related to important metabolic traits.
Conclusion
To the best of our knowledge, this represents the first seascape genomics study for common dolphins (genus Delphinus). Information from the associations between populations and their environment can assist population management in forecasting the adaptive capacity of common dolphins to climate change and other anthropogenic impacts.
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6
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Demystifying ecological connectivity for actionable spatial conservation planning. Trends Ecol Evol 2022; 37:1079-1091. [PMID: 36182406 DOI: 10.1016/j.tree.2022.09.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 08/25/2022] [Accepted: 09/06/2022] [Indexed: 01/12/2023]
Abstract
Connectivity underpins the persistence of life; it needs to inform biodiversity conservation decisions. Yet, when prioritising conservation areas and developing actions, connectivity is not being operationalised in spatial planning. The challenge is the translation of flows associated with connectivity into conservation objectives that lead to actions. Connectivity is nebulous, it can be abstract and mean different things to different people, making it difficult to include in conservation problems. Here, we show how connectivity can be included in mathematically defining conservation planning objectives. We provide a path forward for linking connectivity to high-level conservation goals, such as increasing species' persistence. We propose ways to design spatial management areas that gain biodiversity benefit from connectivity.
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7
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Naaykens T, D’Aloia CC. Isolation‐by‐distance and genetic parentage analysis provide similar larval dispersal estimates. Mol Ecol 2022; 31:3072-3082. [DOI: 10.1111/mec.16465] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 02/10/2022] [Accepted: 03/30/2022] [Indexed: 11/28/2022]
Affiliation(s)
- T. Naaykens
- Department of Biological Sciences University of New Brunswick – Saint John 100 Tucker Park Road NB E2L 4L5 Canada
| | - C. C. D’Aloia
- Department of Biology University of Toronto Mississauga 3359 Mississauga Road Mississauga ON L5L 1C6 Canada
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8
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Kim S, Sales L, Carreira D, Galetti M. Frugivore distributions are associated with plant dispersal syndrome diversity in the Caribbean archipelagos. DIVERS DISTRIB 2022. [DOI: 10.1111/ddi.13503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Affiliation(s)
- Seokmin Kim
- Department of Biology University of Miami Coral Gables Florida USA
| | - Lilian Sales
- Department of Biology Faculty of Arts and Science Concordia University Montreal Canada
| | | | - Mauro Galetti
- Department of Biology University of Miami Coral Gables Florida USA
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9
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Wilms TJG, Norðfoss PH, Baktoft H, Støttrup JG, Kruse BM, Svendsen JC. Restoring marine ecosystems: Spatial reef configuration triggers taxon‐specific responses among early colonizers. J Appl Ecol 2021. [DOI: 10.1111/1365-2664.14014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | | | - Henrik Baktoft
- Technical University of Denmark (DTU Aqua) Silkeborg Denmark
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10
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Ledoux J, Ghanem R, Horaud M, López‐Sendino P, Romero‐Soriano V, Antunes A, Bensoussan N, Gómez‐Gras D, Linares C, Machordom A, Ocaña O, Templado J, Leblois R, Ben Souissi J, Garrabou J. Gradients of genetic diversity and differentiation across the distribution range of a Mediterranean coral: Patterns, processes and conservation implications. DIVERS DISTRIB 2021. [DOI: 10.1111/ddi.13382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Affiliation(s)
- Jean‐Baptiste Ledoux
- CIIMAR/CIMAR Centro Interdisciplinar de Investigação Marinha e Ambiental Universidade do Porto Porto Portugal
- Institut de Ciències del Mar CSIC Barcelona Spain
| | - Raouia Ghanem
- Institut National Agronomique de Tunisie Université de Carthage Tunis Tunisie
- Laboratoire de Biodiversité, Biotechnologies et Changements Climatiques (LR11ES09) Université Tunis El Manar Tunis Tunisie
| | | | | | | | - Agostinho Antunes
- CIIMAR/CIMAR Centro Interdisciplinar de Investigação Marinha e Ambiental Universidade do Porto Porto Portugal
- Departamento de Biologia Faculdade de Ciências Universidade do Porto Porto Portugal
| | | | | | - Cristina Linares
- Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals Institut de Recerca de la Biodiversitat (IRBIO) Universitat de Barcelona Barcelona Spain
| | - Annie Machordom
- Museo Nacional de Ciencias Naturales (MNCN‐CSIC) Madrid Spain
| | - Oscar Ocaña
- Departamento de Oceanografía Biológica y Biodiversidad Fundación Museo del Mar de Ceuta Ceuta Spain
| | - José Templado
- Museo Nacional de Ciencias Naturales (MNCN‐CSIC) Madrid Spain
| | - Raphaêl Leblois
- CBGP INRAE CIRAD IRD Montpellier SupAgro University of Montpellier Montpellier France
- Institut de Biologie Computationnelle University of Montpellier Montpellier France
| | - Jamila Ben Souissi
- Institut National Agronomique de Tunisie Université de Carthage Tunis Tunisie
- Laboratoire de Biodiversité, Biotechnologies et Changements Climatiques (LR11ES09) Université Tunis El Manar Tunis Tunisie
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11
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Boulanger E, Benestan L, Guerin PE, Dalongeville A, Mouillot D, Manel S. Climate differently influences the genomic patterns of two sympatric marine fish species. J Anim Ecol 2021; 91:1180-1195. [PMID: 34716929 DOI: 10.1111/1365-2656.13623] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 10/21/2021] [Indexed: 12/19/2022]
Abstract
Climate influences population genetic variation in marine species. Capturing these impacts remains challenging for marine fishes which disperse over large geographical scales spanning steep environmental gradients. It requires the extensive spatial sampling of individuals or populations, representative of seascape heterogeneity, combined with a set of highly informative molecular markers capable of revealing climatic-associated genetic variations. We explored how space, dispersal and environment shape the genomic patterns of two sympatric fish species in the Mediterranean Sea, which ranks among the oceanic basins most affected by climate change and human pressure. We hypothesized that the population structure and climate-associated genomic signatures of selection would be stronger in the less mobile species, as restricted gene flow tends to facilitate the fixation of locally adapted alleles. To test our hypothesis, we genotyped two species with contrasting dispersal abilities: the white seabream Diplodus sargus and the striped red mullet Mullus surmuletus. We collected 823 individuals and used genotyping by sequencing (GBS) to detect 8,206 single nucleotide polymorphisms (SNPs) for the seabream and 2,794 for the mullet. For each species, we identified highly differentiated genomic regions (i.e. outliers) and disentangled the relative contribution of space, dispersal and environmental variables (climate, marine primary productivity) on the outliers' genetic structure to test the prevalence of gene flow and local adaptation. We observed contrasting patterns of gene flow and adaptive genetic variation between the two species. The seabream showed a distinct Alboran sea population and panmixia across the Mediterranean Sea. The mullet revealed additional differentiation within the Mediterranean Sea that was significantly correlated to summer and winter temperatures, as well as marine primary productivity. Functional annotation of the climate-associated outlier SNPs then identified candidate genes involved in heat tolerance that could be examined to further predict species' responses to climate change. Our results illustrate the key steps of a comparative seascape genomics study aiming to unravel the evolutionary processes at play in marine species, to better anticipate their response to climate change. Defining population adaptation capacities and environmental niches can then serve to incorporate evolutionary processes into species conservation planning.
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Affiliation(s)
- Emilie Boulanger
- CEFE, University of Montpellier, CNRS, EPHE-PSL University, IRD, Montpellier, France.,MARBEC, University of Montpellier, CNRS, Ifremer, IRD, Montpellier, France
| | - Laura Benestan
- CEFE, University of Montpellier, CNRS, EPHE-PSL University, IRD, Montpellier, France
| | - Pierre-Edouard Guerin
- CEFE, University of Montpellier, CNRS, EPHE-PSL University, IRD, Montpellier, France
| | | | - David Mouillot
- MARBEC, University of Montpellier, CNRS, Ifremer, IRD, Montpellier, France.,Institut Universitaire de France, Paris, France
| | - Stéphanie Manel
- CEFE, University of Montpellier, CNRS, EPHE-PSL University, IRD, Montpellier, France
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12
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Grorud-Colvert K, Sullivan-Stack J, Roberts C, Constant V, Horta E Costa B, Pike EP, Kingston N, Laffoley D, Sala E, Claudet J, Friedlander AM, Gill DA, Lester SE, Day JC, Gonçalves EJ, Ahmadia GN, Rand M, Villagomez A, Ban NC, Gurney GG, Spalding AK, Bennett NJ, Briggs J, Morgan LE, Moffitt R, Deguignet M, Pikitch EK, Darling ES, Jessen S, Hameed SO, Di Carlo G, Guidetti P, Harris JM, Torre J, Kizilkaya Z, Agardy T, Cury P, Shah NJ, Sack K, Cao L, Fernandez M, Lubchenco J. The MPA Guide: A framework to achieve global goals for the ocean. Science 2021; 373:eabf0861. [PMID: 34516798 DOI: 10.1126/science.abf0861] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Kirsten Grorud-Colvert
- Department of Integrative Biology, Oregon State University, 3029 Cordley Hall, Corvallis, OR, USA.,Marine Conservation Institute, Seattle, WA 98103, USA
| | - Jenna Sullivan-Stack
- Department of Integrative Biology, Oregon State University, 3029 Cordley Hall, Corvallis, OR, USA
| | - Callum Roberts
- Department of Environment and Geography, University of York, York YO10 5DD, UK
| | - Vanessa Constant
- Department of Integrative Biology, Oregon State University, 3029 Cordley Hall, Corvallis, OR, USA
| | - Barbara Horta E Costa
- Center of Marine Sciences, CCMAR, University of Algarve, Campus de Gambelas, Faro, 8005-139, Portugal.,School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, NY 11794, USA
| | - Elizabeth P Pike
- Marine Protection Atlas, Marine Conservation Institute, Seattle, WA, 98103-9090, USA.,Pew Bertarelli Ocean Legacy Project, The Pew Charitable Trusts, Washington, DC 20004-2008, USA
| | - Naomi Kingston
- Department of Integrative Biology, Oregon State University, 3029 Cordley Hall, Corvallis, OR, USA.,UN Environment Programme World Conservation Monitoring Centre, Cambridge, UK
| | - Dan Laffoley
- IUCN World Commission on Protected Areas, International Union for Conservation of Nature (IUCN), CH-1196 Gland, Switzerland.,School of Public Policy, Oregon State University, Corvallis, OR 97330, USA
| | - Enric Sala
- National Geographic Society, Washington, DC, USA.,Department of Geography, Florida State University, Tallahassee, FL 32306-2190, USA
| | - Joachim Claudet
- National Center for Scientific Research, PSL Université Paris, CRIOBE, USR 3278 CNRS-EPHE-UPVD, Maison des Océans, 75005 Paris, France.,Wildlife Conservation Society, 2300 Southern Blvd, Bronx, NY 10460, USA
| | - Alan M Friedlander
- Hawai'i Institute of Marine Biology, University of Hawaii, Kāne'ohe, HI 96744, USA.,Pristine Seas, National Geography Society, Washington, DC 20036, USA
| | - David A Gill
- Duke University Marine Laboratory, Nicholas School of the Environment, Duke University, Beaufort, NC 28516, USA
| | - Sarah E Lester
- Department of Integrative Biology, Oregon State University, 3029 Cordley Hall, Corvallis, OR, USA.,Department of Geography, Florida State University, Tallahassee, FL 32306-2190, USA
| | - Jon C Day
- ARC Centre of Excellence in Coral Reef Studies, James Cook University, Townsville QLD 4811, Australia
| | - Emanuel J Gonçalves
- Pristine Seas, National Geography Society, Washington, DC 20036, USA.,Duke University Marine Laboratory, Nicholas School of the Environment, Duke University, Beaufort, NC 28516, USA.,Marine and Environmental Sciences Centre (MARE), ISPA-Instituto Universitário, 1149-041 Lisbon, Portugal.,Oceano Azul Foundation, Oceanário de Lisboa, Esplanada D. Carlos I,1990-005 Lisbon, Portugal
| | - Gabby N Ahmadia
- Ocean Conservation, World Wildlife Fund, Washington, DC 20037, USA.,School of Environmental Studies, University of Victoria, Victoria, BC V8W 2Y2, Canada.,Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, Queensland 4811, Australia
| | - Matt Rand
- IUCN World Commission on Protected Areas, International Union for Conservation of Nature (IUCN), CH-1196 Gland, Switzerland.,Pew Bertarelli Ocean Legacy Project, The Pew Charitable Trusts, Washington, DC 20004-2008, USA
| | - Angelo Villagomez
- IUCN World Commission on Protected Areas, International Union for Conservation of Nature (IUCN), CH-1196 Gland, Switzerland.,Pew Bertarelli Ocean Legacy Project, The Pew Charitable Trusts, Washington, DC 20004-2008, USA
| | - Natalie C Ban
- UN Environment Programme World Conservation Monitoring Centre, Cambridge, UK.,School of Environmental Studies, University of Victoria, Victoria, BC V8W 2Y2, Canada
| | - Georgina G Gurney
- Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, Queensland 4811, Australia
| | - Ana K Spalding
- ARC Centre of Excellence in Coral Reef Studies, James Cook University, Townsville QLD 4811, Australia.,Marine and Environmental Sciences Centre (MARE), ISPA-Instituto Universitário, 1149-041 Lisbon, Portugal.,School of Public Policy, Oregon State University, Corvallis, OR 97330, USA.,Smithsonian Tropical Research Institute, Panama City, Panama; Coiba Scientific Station (Coiba AIP), Panama City, Panama.,Marine Conservation Institute, Seattle, WA 98103, USA
| | - Nathan J Bennett
- National Center for Scientific Research, PSL Université Paris, CRIOBE, USR 3278 CNRS-EPHE-UPVD, Maison des Océans, 75005 Paris, France.,The Peopled Seas Initiative, Vancouver, BC, Canada
| | - Johnny Briggs
- Pew Bertarelli Ocean Legacy Project, The Pew Charitable Trusts, Washington, DC 20004-2008, USA
| | | | - Russell Moffitt
- Marine Protection Atlas, Marine Conservation Institute, Seattle, WA, 98103-9090, USA.,Pew Bertarelli Ocean Legacy Project, The Pew Charitable Trusts, Washington, DC 20004-2008, USA
| | - Marine Deguignet
- UN Environment Programme World Conservation Monitoring Centre, Cambridge, UK
| | - Ellen K Pikitch
- National Geographic Society, Washington, DC, USA.,School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, NY 11794, USA
| | - Emily S Darling
- School of Environmental Studies, University of Victoria, Victoria, BC V8W 2Y2, Canada.,Wildlife Conservation Society, 2300 Southern Blvd, Bronx, NY 10460, USA
| | - Sabine Jessen
- Marine Protection Atlas, Marine Conservation Institute, Seattle, WA, 98103-9090, USA.,National Ocean Program, Canadian Parks and Wilderness Society, Ottawa, ON K2P 0A4, Canada
| | - Sarah O Hameed
- The Peopled Seas Initiative, Vancouver, BC, Canada.,Blue Parks Program, Marine Conservation Institute, Seattle, WA 98103, USA
| | | | - Paolo Guidetti
- Department of Integrative Marine Ecology (EMI), Stazione Zoologica A. Dohrn-National Institute of Marine Biology, Ecology and Biotechnology, Villa Comunale, 80121 Naples, Italy.,National Research Council, Institute for the Study of Anthropic Impact and Sustainability in the Marine Environment (CNR-IAS), V16149 Genoa, Italy
| | - Jean M Harris
- Institute for Coastal and Marine Research (CMR), Nelson Mandela University, Gomeroy Avenue, Summerstrand, Port Elizabeth 6031, South Africa
| | - Jorge Torre
- Comunidad y Biodiversidad, A.C. Isla del Peruano 215, Col. Lomas de Miramar, Guaymas, Sonora, 85454, Mexico
| | - Zafer Kizilkaya
- Mediterranean Conservation Society, Bornova, Izmir 35100 Turkey
| | - Tundi Agardy
- Oceano Azul Foundation, Oceanário de Lisboa, Esplanada D. Carlos I,1990-005 Lisbon, Portugal.,Sound Seas, Colrain, MA 01340, USA
| | - Philippe Cury
- Center of Marine Sciences, CCMAR, University of Algarve, Campus de Gambelas, Faro, 8005-139, Portugal.,MARBEC, Montpellier University, CNRS, IRD, IFREMER, Sète, France
| | - Nirmal J Shah
- School of Public Policy, Oregon State University, Corvallis, OR 97330, USA.,Nature Seychelles, Centre for Environment and Education, Sanctuary at Roche Caiman, Mahe, Seychelles
| | - Karen Sack
- Ocean Conservation, World Wildlife Fund, Washington, DC 20037, USA.,Ocean Unite, Washington, DC 20007, USA
| | - Ling Cao
- School of Oceanography, Shanghai Jiao Tong University, Shanghai 230000, China
| | - Miriam Fernandez
- Smithsonian Tropical Research Institute, Panama City, Panama; Coiba Scientific Station (Coiba AIP), Panama City, Panama.,Estación Costera de Investigaciones Marinas de Las Cruces and Departmento de Ecología, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Jane Lubchenco
- Department of Integrative Biology, Oregon State University, 3029 Cordley Hall, Corvallis, OR, USA.,Marine Conservation Institute, Seattle, WA 98103, USA
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13
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Abstract
Marine fisheries are an essential component of global food security, but many are close to their limits and some are overfished. The models that guide the management of these fisheries almost always assume reproduction is proportional to mass (isometry), when fecundity generally increases disproportionately to mass (hyperallometry). Judged against several management reference points, we show that assuming isometry overestimates the replenishment potential of exploited fish stocks by 22% (range: 2% to 78%) for 32 of the world's largest fisheries, risking systematic overharvesting. We calculate that target catches based on assumptions of isometry are more than double those based on assumptions of hyperallometry for most species, such that common reference points are set twice as high as they should be to maintain the target level of replenishment. We also show that hyperallometric reproduction provides opportunities for increasing the efficacy of tools that are underused in standard fisheries management, such as protected areas or harvest slot limits. Adopting management strategies that conserve large, hyperfecund fish may, in some instances, result in higher yields relative to traditional approaches. We recommend that future assessment of reference points and quotas include reproductive hyperallometry unless there is clear evidence that it does not occur in that species.
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14
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Assis J, Fragkopoulou E, Serrão EA, Horta E Costa B, Gandra M, Abecasis D. Weak biodiversity connectivity in the European network of no-take marine protected areas. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 773:145664. [PMID: 33940752 DOI: 10.1016/j.scitotenv.2021.145664] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 01/20/2021] [Accepted: 02/01/2021] [Indexed: 06/12/2023]
Abstract
The need for international cooperation in marine resource management and conservation has been reflected in the increasing number of agreements aiming for effective and well-connected networks of Marine Protected Areas (MPAs). However, the extent to which individual MPAs are connected remains mostly unknown. Here, we use a biophysical model tuned with empirical data on species dispersal ecology to predict connectivity of a vast spectrum of biodiversity in the European network of marine reserves (i.e., no-take MPAs). Our results highlight the correlation between empirical propagule duration data and connectivity potential and show weak network connectivity and strong isolation for major ecological groups, resulting from the lack of direct connectivity corridors between reserves over vast regions. The particularly high isolation predicted for ecosystem structuring species (e.g., corals, sponges, macroalgae and seagrass) might potentially undermine biodiversity conservation efforts if local retention is insufficient and unmanaged populations are at risk. Isolation might also be problematic for populations' persistence in the light of climate change and expected species range shifts. Our findings provide novel insights for management directives, highlighting the location of regions requiring additional marine reserves to function as stepping-stone connectivity corridors.
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Affiliation(s)
- J Assis
- CCMAR - Centre of Marine Sciences, University of Algarve, 8005-139 Faro, Portugal.
| | - E Fragkopoulou
- CCMAR - Centre of Marine Sciences, University of Algarve, 8005-139 Faro, Portugal
| | - E A Serrão
- CCMAR - Centre of Marine Sciences, University of Algarve, 8005-139 Faro, Portugal
| | - B Horta E Costa
- CCMAR - Centre of Marine Sciences, University of Algarve, 8005-139 Faro, Portugal
| | - M Gandra
- CCMAR - Centre of Marine Sciences, University of Algarve, 8005-139 Faro, Portugal
| | - D Abecasis
- CCMAR - Centre of Marine Sciences, University of Algarve, 8005-139 Faro, Portugal
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15
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Benestan L, Fietz K, Loiseau N, Guerin PE, Trofimenko E, Rühs S, Schmidt C, Rath W, Biastoch A, Pérez-Ruzafa A, Baixauli P, Forcada A, Arcas E, Lenfant P, Mallol S, Goñi R, Velez L, Höppner M, Kininmonth S, Mouillot D, Puebla O, Manel S. Restricted dispersal in a sea of gene flow. Proc Biol Sci 2021; 288:20210458. [PMID: 34004134 PMCID: PMC8131118 DOI: 10.1098/rspb.2021.0458] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 04/23/2021] [Indexed: 12/19/2022] Open
Abstract
How far do marine larvae disperse in the ocean? Decades of population genetic studies have revealed generally low levels of genetic structure at large spatial scales (hundreds of kilometres). Yet this result, typically based on discrete sampling designs, does not necessarily imply extensive dispersal. Here, we adopt a continuous sampling strategy along 950 km of coast in the northwestern Mediterranean Sea to address this question in four species. In line with expectations, we observe weak genetic structure at a large spatial scale. Nevertheless, our continuous sampling strategy uncovers a pattern of isolation by distance at small spatial scales (few tens of kilometres) in two species. Individual-based simulations indicate that this signal is an expected signature of restricted dispersal. At the other extreme of the connectivity spectrum, two pairs of individuals that are closely related genetically were found more than 290 km apart, indicating long-distance dispersal. Such a combination of restricted dispersal with rare long-distance dispersal events is supported by a high-resolution biophysical model of larval dispersal in the study area, and we posit that it may be common in marine species. Our results bridge population genetic studies with direct dispersal studies and have implications for the design of marine reserve networks.
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Affiliation(s)
- L. Benestan
- CEFE, PSL EPHE, Université Montpellier, CNRS, IRD, Université Paul-Valéry Montpellier 3, Montpellier, France
| | - K. Fietz
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Düsternbrooker Weg 20, 24105 Kiel, Germany
| | - N. Loiseau
- MARBEC, Univ Montpellier, CNRS, IFREMER, IRD, Montpellier, France
| | - P. E. Guerin
- CEFE, PSL EPHE, Université Montpellier, CNRS, IRD, Université Paul-Valéry Montpellier 3, Montpellier, France
| | - E. Trofimenko
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Düsternbrooker Weg 20, 24105 Kiel, Germany
| | - S. Rühs
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Düsternbrooker Weg 20, 24105 Kiel, Germany
| | - C. Schmidt
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Düsternbrooker Weg 20, 24105 Kiel, Germany
| | - W. Rath
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Düsternbrooker Weg 20, 24105 Kiel, Germany
| | - A. Biastoch
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Düsternbrooker Weg 20, 24105 Kiel, Germany
- Kiel University, Christian-Albrechts-Platz 4, 24118 Kiel, Germany
| | - A. Pérez-Ruzafa
- Department of Ecology and Hydrology, Faculty of Biology, Espinardo, Regional Campus of International Excellence ‘Mare Nostrum’, University of Murcia, Murcia 30100, Spain
| | - P. Baixauli
- Department of Ecology and Hydrology, Faculty of Biology, Espinardo, Regional Campus of International Excellence ‘Mare Nostrum’, University of Murcia, Murcia 30100, Spain
| | - A. Forcada
- Department of Marine Sciences and Applied Biology, University of Alicante, P.O. Box 99, 03080 Alicante, Spain
| | - E. Arcas
- Department of Marine Sciences and Applied Biology, University of Alicante, P.O. Box 99, 03080 Alicante, Spain
| | - P. Lenfant
- Centre de Formation et de Recherche sur les Environnements Méditerranéens, Université Perpignan Via Domitia, CNRS, 66100 Perpignan, France
| | - S. Mallol
- Instituto Español de Oceanografía, Centro Oceanográfico de Baleares, Moll de Ponent s/n, 07015 Palma de Mallorca, Spain
| | - R. Goñi
- Instituto Español de Oceanografía, Centro Oceanográfico de Baleares, Moll de Ponent s/n, 07015 Palma de Mallorca, Spain
| | - L. Velez
- MARBEC, Univ Montpellier, CNRS, IFREMER, IRD, Montpellier, France
| | - M. Höppner
- Kiel University, Christian-Albrechts-Platz 4, 24118 Kiel, Germany
| | - S. Kininmonth
- School of Marine Studies, University of the South Pacific, Fiji
| | - D. Mouillot
- MARBEC, Univ Montpellier, CNRS, IFREMER, IRD, Montpellier, France
- Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, QLD 4811, Australia
| | - O. Puebla
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Düsternbrooker Weg 20, 24105 Kiel, Germany
- Ecology Department, Leibniz-Centre for Tropical Marine Research, Fahrenheitstraße 6, 28359 Bremen, Germany
| | - S. Manel
- CEFE, PSL EPHE, Université Montpellier, CNRS, IRD, Université Paul-Valéry Montpellier 3, Montpellier, France
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16
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LaScala‐Gruenewald DE, Grace RV, Haggitt TR, Hanns BJ, Kelly S, MacDiarmid A, Shears NT. Small marine reserves do not provide a safeguard against overfishing. CONSERVATION SCIENCE AND PRACTICE 2021. [DOI: 10.1111/csp2.362] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Affiliation(s)
| | - Roger V. Grace
- Leigh Marine Laboratory University of Auckland Leigh New Zealand
| | - Tim R. Haggitt
- Leigh Marine Laboratory University of Auckland Leigh New Zealand
| | | | - Shane Kelly
- Leigh Marine Laboratory University of Auckland Leigh New Zealand
| | - Alison MacDiarmid
- National Institute of Water and Atmospheric Research Wellington New Zealand
| | - Nick T. Shears
- Leigh Marine Laboratory University of Auckland Leigh New Zealand
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17
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Conroy JA, Reiss CS, Gleiber MR, Steinberg DK. Linking Antarctic krill larval supply and recruitment along the Antarctic Peninsula. Integr Comp Biol 2020; 60:1386-1400. [PMID: 32692833 DOI: 10.1093/icb/icaa111] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Antarctic krill (Euphausia superba) larval production and overwinter survival drive recruitment variability, which in turn determines abundance trends. The Antarctic Peninsula has been described as a recruitment hot spot and as a potentially important source region for larval and juvenile krill dispersal. However, there has been no analysis to spatially resolve regional-scale krill population dynamics across life stages. We assessed spatiotemporal patterns in krill demography using two decades of austral summer data collected along the North and West Antarctic Peninsula since 1993. We identified persistent spatial segregation in the summer distribution of euphausiid larvae (E. superba plus other species), which were concentrated in oceanic waters along the continental slope, and E. superba recruits, which were concentrated in shelf and coastal waters. Mature females of E. superba were more abundant over the continental shelf than the slope or coast. Euphausiid larval abundance was relatively localized and weakly correlated between the North and West Antarctic Peninsula, while E. superba recruitment was generally synchronized throughout the entire region. Euphausiid larval abundance along the West Antarctic Peninsula slope explained E. superba recruitment in shelf and coastal waters the next year. Given the localized nature of krill productivity, it is critical to evaluate the connectivity between upstream and downstream areas of the Antarctic Peninsula and beyond. Krill fishery catch distributions and population projections in the context of a changing climate should account for ontogenetic habitat partitioning, regional population connectivity, and highly variable recruitment.
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Affiliation(s)
- John A Conroy
- Virginia Institute of Marine Science, William & Mary, Gloucester Point, VA, USA
| | - Christian S Reiss
- Antarctic Ecosystem Research Division, NOAA, Southwest Fisheries Science Center, La Jolla, CA, USA
| | - Miram R Gleiber
- Virginia Institute of Marine Science, William & Mary, Gloucester Point, VA, USA.,Department of Integrative Biology, Hatfield Marine Science Center, Oregon State University, Newport, OR, USA
| | - Deborah K Steinberg
- Virginia Institute of Marine Science, William & Mary, Gloucester Point, VA, USA
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18
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Hillebrand H, Jacob U, Leslie HM. Integrative research perspectives on marine conservation. Philos Trans R Soc Lond B Biol Sci 2020; 375:20190444. [PMID: 33131441 DOI: 10.1098/rstb.2019.0444] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Whereas the conservation and management of biodiversity has become a key issue in environmental sciences and policy in general, the conservation of marine biodiversity faces additional challenges such as the challenges of accessing field sites (e.g. polar, deep sea), knowledge gaps regarding biodiversity trends, high mobility of many organisms in fluid environments, and ecosystem-specific obstacles to stakeholder engagement and governance. This issue comprises contributions from a diverse international group of scientists in a benchmarking volume for a common research agenda on marine conservation. We begin by addressing information gaps on marine biodiversity trends through novel approaches and technologies, then linking such information to ecosystem functioning through a focus on traits. We then leverage the knowledge of these relationships to inform theory aiming at predicting the future composition and functioning of marine communities. Finally, we elucidate the linkages between marine ecosystems and human societies by examining economic, management and governance approaches that contribute to effective marine conservation in practice. This article is part of the theme issue 'Integrative research perspectives on marine conservation'.
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Affiliation(s)
- Helmut Hillebrand
- Institute for Chemistry and Biology of Marine Environments [ICBM], Carl-von-Ossietzky University Oldenburg, Schleusenstrasse 1, 26382 Wilhelmshaven, Germany.,Helmholtz-Institute for Functional Marine Biodiversity at the University of Oldenburg [HIFMB], Ammerländer Heerstrasse 231, 26129 Oldenbburg, Germany.,Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany
| | - Ute Jacob
- Helmholtz-Institute for Functional Marine Biodiversity at the University of Oldenburg [HIFMB], Ammerländer Heerstrasse 231, 26129 Oldenbburg, Germany.,Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany
| | - Heather M Leslie
- Darling Marine Center and School of Marine Sciences, University of Maine, 193 Clarks Cove Road, Walpole, ME 04573, USA
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19
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Takashina N. On the spillover effect and optimal size of marine reserves for sustainable fishing yields. PeerJ 2020; 8:e9798. [PMID: 32904263 PMCID: PMC7453923 DOI: 10.7717/peerj.9798] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 08/02/2020] [Indexed: 11/20/2022] Open
Abstract
Marine reserves are an essential component of modern fishery management. Marine reserves, which represent a management tradeoff between harvesting and conservation, are fundamental to maintenance of fisheries. Finding optimal reserve sizes that improve fishing yields is not only of theoretical interest, but also of practical importance to facilitate decision making. Also, since the migratory behavior of some species influences the spillover effect of a marine reserve, this is a key consideration when assessing performance of marine reserves. The relationship between optimal reserve size and migration rate/mode has not been well studied, but it is fundamental to management success. Here, I investigate optimal reserve size and its management outcome with different levels of spillover via a simple two-patch mathematical model. In this model, one patch is open to fishing, and the other is closed. The two-patch model is aggregated by single-population dynamics when the migration rate is sufficiently larger than the growth rate of a target species. At this limit, I show that an optimal reserve size exists when pre-reserve fishing occurs at fishing mortality larger than fMSY, the fishing mortality at the maximum sustainable yield (MSY). Also, the fishing yield at an optimal reserve size becomes as large as MSY at the limit. Numerical simulations at various migration rates between the two patches suggest that the maximum harvest under management with a marine reserve is achieved at this limit. This contrasts with the conservation benefit which is maximized at an intermediate migration rate. Numerical simulations show that the above-mentioned condition for an optimal reserve size to exist derived from the aggregated model is necessary when the migration rate is not sufficiently large, and that a moderate migration rate is further necessary for an optimal reserve size to exist. However, high fishing mortality reduces this requirement.
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Affiliation(s)
- Nao Takashina
- Biodiversity and Biocomplexity Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa, Japan
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20
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Manel S, Guerin PE, Mouillot D, Blanchet S, Velez L, Albouy C, Pellissier L. Global determinants of freshwater and marine fish genetic diversity. Nat Commun 2020; 11:692. [PMID: 32041961 PMCID: PMC7010757 DOI: 10.1038/s41467-020-14409-7] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 01/06/2020] [Indexed: 01/18/2023] Open
Abstract
Genetic diversity is estimated to be declining faster than species diversity under escalating threats, but its spatial distribution remains poorly documented at the global scale. Theory predicts that similar processes should foster congruent spatial patterns of genetic and species diversity, but empirical studies are scarce. Using a mined database of 50,588 georeferenced mitochondrial DNA barcode sequences (COI) for 3,815 marine and 1,611 freshwater fish species respectively, we examined the correlation between genetic diversity and species diversity and their global distributions in relation to climate and geography. Genetic diversity showed a clear spatial organisation, but a weak association with species diversity for both marine and freshwater species. We found a predominantly positive relationship between genetic diversity and sea surface temperature for marine species. Genetic diversity of freshwater species varied primarily across the regional basins and was negatively correlated with average river slope. The detection of genetic diversity patterns suggests that conservation measures should consider mismatching spatial signals across multiple facets of biodiversity. Biogeographic patterns of genetic diversity are poorly documented, especially for fish species. Here the authors show that (mitochondrial) genetic diversity has global spatial organization patterns with different environmental drivers for marine and freshwater fishes, where genetic diversity is only partly congruent with species richness.
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Affiliation(s)
- Stéphanie Manel
- CEFE, Univ. Montpellier, CNRS, EPHE-PSL University, IRD, Univ Paul Valéry Montpellier 3, Montpellier, France.
| | - Pierre-Edouard Guerin
- CEFE, Univ. Montpellier, CNRS, EPHE-PSL University, IRD, Univ Paul Valéry Montpellier 3, Montpellier, France
| | - David Mouillot
- MARBEC, Univ Montpellier, CNRS, IFREMER, IRD, Montpellier, France.,Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, QLD, 4811, Australia
| | - Simon Blanchet
- Centre National de la Recherche Scientifique (CNRS), Université Paul Sabatier (UPS); Station d'Ecologie Théorique et Expérimentale, UMR 5321, F-09200, Moulis, France
| | - Laure Velez
- MARBEC, Univ Montpellier, CNRS, IFREMER, IRD, Montpellier, France
| | - Camille Albouy
- IFREMER, unité Ecologie et Modèle pour l'Halieutique, Nantes, France
| | - Loïc Pellissier
- Swiss Federal Research Institute WSL, CH-8903, Birmensdorf, Switzerland.,Landscape Ecology, Institute of Terrestrial Ecosystems, Department of Environmental System Science, ETH Zürich, CH-8092, Zürich, Switzerland
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21
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Duranton M, Bonhomme F, Gagnaire P. The spatial scale of dispersal revealed by admixture tracts. Evol Appl 2019; 12:1743-1756. [PMID: 31548854 PMCID: PMC6752141 DOI: 10.1111/eva.12829] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 05/28/2019] [Indexed: 12/11/2022] Open
Abstract
Evaluating species dispersal across the landscape is essential to design appropriate management and conservation actions. However, technical difficulties often preclude direct measures of individual movement, while indirect genetic approaches rely on assumptions that sometimes limit their application. Here, we show that the temporal decay of admixture tracts lengths can be used to assess genetic connectivity within a population introgressed by foreign haplotypes. We present a proof-of-concept approach based on local ancestry inference in a high gene flow marine fish species, the European sea bass (Dicentrarchus labrax). Genetic admixture in the contact zone between Atlantic and Mediterranean sea bass lineages allows the introgression of Atlantic haplotype tracts within the Mediterranean Sea. Once introgressed, blocks of foreign ancestry are progressively eroded by recombination as they diffuse from the western to the eastern Mediterranean basin, providing a means to estimate dispersal. By comparing the length distributions of Atlantic tracts between two Mediterranean populations located at different distances from the contact zone, we estimated the average per-generation dispersal distance within the Mediterranean lineage to less than 50 km. Using simulations, we showed that this approach is robust to a range of demographic histories and sample sizes. Our results thus support that the length of admixture tracts can be used together with a recombination clock to estimate genetic connectivity in species for which the neutral migration-drift balance is not informative or simply does not exist.
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Affiliation(s)
- Maud Duranton
- ISEM, Univ Montpellier, CNRS, EPHE, IRDMontpellierFrance
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22
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Manel S, Loiseau N, Puebla O. Long-Distance Marine Connectivity: Poorly Understood but Potentially Important. Trends Ecol Evol 2019; 34:688-689. [PMID: 31229336 DOI: 10.1016/j.tree.2019.05.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 05/24/2019] [Indexed: 11/24/2022]
Affiliation(s)
- Stéphanie Manel
- PSL Research University, EPHE, CNRS, UM, UM3, IRD, UMR 5175 CEFE, Montpellier, France.
| | - Nicolas Loiseau
- MARBEC, Univ Montpellier, CNRS, Ifremer, IRD, Montpellier, France; University Grenoble Alpes, CNRS, Univ. Savoie Mont Blanc, LECA, Laboratoire 9 d'Ecologie Alpine, F-38000 Grenoble, France
| | - Oscar Puebla
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Marine Evolutionary Ecology, Düsternbrooker Weg 20, 24105, Kiel, Germany
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Costello MJ, Connor DW. Connectivity Is Generally Not Important for Marine Reserve Planning. Trends Ecol Evol 2019; 34:686-688. [PMID: 31160083 DOI: 10.1016/j.tree.2019.04.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 04/23/2019] [Indexed: 12/27/2022]
Affiliation(s)
- Mark J Costello
- Institute of Marine Science, University of Auckland, Auckland 1142, New Zealand.
| | - David W Connor
- European Commission, DG Environment, 1049 Brussels, Belgium
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