Academic Journal
Variability of advective connectivity in the Baltic Sea
| العنوان: | Variability of advective connectivity in the Baltic Sea |
|---|---|
| المؤلفون: | Hinrichsen, Hans-Harald, von Dewitz, Burkhard, Dierking, Jan |
| بيانات النشر: | Elsevier |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | geo, envir |
| الوصف: | Highlights: • Dispersal patterns reflect basin-like structure. • Decadal and spatial variability of dispersal patterns • Spatial differences in stability of dispersal patterns • Conceptual tool to support genetic and ecological studies • Datasets freely available for application to other species Abstract: Connectivity between different populations of a species is a central parameter in the fields of ecology and evolutionary biology. We here provided decadally, regionally, and depth layer resolved information on connectivity and dispersal patterns for the entire Baltic Sea as a tool for supporting population genetic and ecological studies. The general method to assess dispersal used was bio-physical modelling, which is suitable for biological dispersal that is highly influenced by the physical water transport in ocean circulation. The results were assessed from Lagrangian particle tracking using ocean circulation model outputs. Generally, for the whole Baltic Sea as well as for all subareas, we observed persistent patterns of dispersal that reflected the basin-like structure of the Baltic Sea, with less transport between the basins. At the same time, dispersal distance and in extension, local retention versus dispersal of particles to other sub-areas, varied considerably over four decades (1970–2010) and among regions within the Baltic Sea, corresponding to a range from high connectivity to partial dispersal barriers. Based on the example of Eastern Baltic cod we then investigated how our dispersal distance datasets can serve as a tool to assess dispersal and the expected connectivity among different populations of a species, as long as some biological information is available. For example, our finding of high dispersal of particles from the Bornholm Basin to the other Eastern Baltic basins could help to explain recent results indicating lack of genetic differentiation of cod across the eastern Baltic Sea. Our results also indicate that the shift in spawning time observed in cod over the past decades and the . |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| Relation: | https://oceanrep.geomar.de/id/eprint/43538/1/hinrichsen_2018_jms.pdf; https://oceanrep.geomar.de/id/eprint/43538/ |
| الاتاحة: | https://oceanrep.geomar.de/id/eprint/43538/1/hinrichsen_2018_jms.pdf https://oceanrep.geomar.de/id/eprint/43538/ |
| Rights: | undefined |
| رقم الانضمام: | edsbas.E05F703C |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |