Spatial genetic structure in a crustacean herbivore highlights the need for local considerations in Baltic Sea biodiversity management
Abstract Incorporating species' eco‐evolutionary responses to human‐caused disturbances remains a challenge in marine management efforts. A prerequisite is knowledge of geographic structure and scale of genetic diversity and connectivity—the so‐called seascape genetic patterns. The Baltic Sea i...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2020-05-01
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| Series: | Evolutionary Applications |
| Subjects: | |
| Online Access: | https://doi.org/10.1111/eva.12914 |
| _version_ | 1811207092919336960 |
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| author | Pierre De Wit Per R. Jonsson Ricardo T. Pereyra Marina Panova Carl André Kerstin Johannesson |
| author_facet | Pierre De Wit Per R. Jonsson Ricardo T. Pereyra Marina Panova Carl André Kerstin Johannesson |
| author_sort | Pierre De Wit |
| collection | DOAJ |
| description | Abstract Incorporating species' eco‐evolutionary responses to human‐caused disturbances remains a challenge in marine management efforts. A prerequisite is knowledge of geographic structure and scale of genetic diversity and connectivity—the so‐called seascape genetic patterns. The Baltic Sea is an excellent model system for studies linking seascape genetics with effects of anthropogenic stress. However, seascape genetic patterns in this area are only described for a few species and are completely unknown for invertebrate herbivores, which constitute a critical part of the ecosystem. This information is crucial for sustainable management, particularly under future scenarios of rapid environmental change. Here, we investigate the population genetic structure among 31 locations throughout the Baltic Sea, of which 45% were located in marine protected areas, in one of the most important herbivores of this region, the isopod crustacean Idotea balthica, using an array of 33,774 genome‐wide SNP markers derived from 2b‐RAD sequencing. In addition, we generate a biophysical connectivity matrix for I. balthica from a combination of oceanographic current models and estimated life history traits. We find population structure on scales of hundreds of kilometers across the Baltic Sea, where genomic patterns in most cases closely match biophysical connectivity, indicating passive transport with oceanographic currents as an important mean of dispersal in this species. We also find a reduced genetic diversity in terms of heterozygosity along the main salinity gradient of the Baltic Sea, suggesting periods of low population size. Our results provide crucial information for the management of a key ecosystem species under expected changes in temperature and salinity following global climate change in a marine coastal area. |
| first_indexed | 2024-04-12T03:57:59Z |
| format | Article |
| id | doaj.art-349e5d6f8e0040d2b69bd2a2c940ac8a |
| institution | Directory Open Access Journal |
| issn | 1752-4571 |
| language | English |
| last_indexed | 2024-04-12T03:57:59Z |
| publishDate | 2020-05-01 |
| publisher | Wiley |
| record_format | Article |
| series | Evolutionary Applications |
| spelling | doaj.art-349e5d6f8e0040d2b69bd2a2c940ac8a2022-12-22T03:48:46ZengWileyEvolutionary Applications1752-45712020-05-0113597499010.1111/eva.12914Spatial genetic structure in a crustacean herbivore highlights the need for local considerations in Baltic Sea biodiversity managementPierre De Wit0Per R. Jonsson1Ricardo T. Pereyra2Marina Panova3Carl André4Kerstin Johannesson5Department of Marine Sciences University of Gothenburg Tjärnö SwedenDepartment of Marine Sciences University of Gothenburg Tjärnö SwedenDepartment of Marine Sciences University of Gothenburg Tjärnö SwedenDepartment of Marine Sciences University of Gothenburg Tjärnö SwedenDepartment of Marine Sciences University of Gothenburg Tjärnö SwedenDepartment of Marine Sciences University of Gothenburg Tjärnö SwedenAbstract Incorporating species' eco‐evolutionary responses to human‐caused disturbances remains a challenge in marine management efforts. A prerequisite is knowledge of geographic structure and scale of genetic diversity and connectivity—the so‐called seascape genetic patterns. The Baltic Sea is an excellent model system for studies linking seascape genetics with effects of anthropogenic stress. However, seascape genetic patterns in this area are only described for a few species and are completely unknown for invertebrate herbivores, which constitute a critical part of the ecosystem. This information is crucial for sustainable management, particularly under future scenarios of rapid environmental change. Here, we investigate the population genetic structure among 31 locations throughout the Baltic Sea, of which 45% were located in marine protected areas, in one of the most important herbivores of this region, the isopod crustacean Idotea balthica, using an array of 33,774 genome‐wide SNP markers derived from 2b‐RAD sequencing. In addition, we generate a biophysical connectivity matrix for I. balthica from a combination of oceanographic current models and estimated life history traits. We find population structure on scales of hundreds of kilometers across the Baltic Sea, where genomic patterns in most cases closely match biophysical connectivity, indicating passive transport with oceanographic currents as an important mean of dispersal in this species. We also find a reduced genetic diversity in terms of heterozygosity along the main salinity gradient of the Baltic Sea, suggesting periods of low population size. Our results provide crucial information for the management of a key ecosystem species under expected changes in temperature and salinity following global climate change in a marine coastal area.https://doi.org/10.1111/eva.12914Baltic SeaconnectivityIdotea balthicamarine protected areasseascape genetics |
| spellingShingle | Pierre De Wit Per R. Jonsson Ricardo T. Pereyra Marina Panova Carl André Kerstin Johannesson Spatial genetic structure in a crustacean herbivore highlights the need for local considerations in Baltic Sea biodiversity management Evolutionary Applications Baltic Sea connectivity Idotea balthica marine protected areas seascape genetics |
| title | Spatial genetic structure in a crustacean herbivore highlights the need for local considerations in Baltic Sea biodiversity management |
| title_full | Spatial genetic structure in a crustacean herbivore highlights the need for local considerations in Baltic Sea biodiversity management |
| title_fullStr | Spatial genetic structure in a crustacean herbivore highlights the need for local considerations in Baltic Sea biodiversity management |
| title_full_unstemmed | Spatial genetic structure in a crustacean herbivore highlights the need for local considerations in Baltic Sea biodiversity management |
| title_short | Spatial genetic structure in a crustacean herbivore highlights the need for local considerations in Baltic Sea biodiversity management |
| title_sort | spatial genetic structure in a crustacean herbivore highlights the need for local considerations in baltic sea biodiversity management |
| topic | Baltic Sea connectivity Idotea balthica marine protected areas seascape genetics |
| url | https://doi.org/10.1111/eva.12914 |
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