Description
Populations of top predators have collapsed in many ecosystems throughout the world due to overexploitation by humans. Trophic cascades, reciprocal changes to predator-prey relationships throughout a food web, occur in ecosystems characterized by top predator loss and can cause a loss of biodiversity and changes to ecosystem structure. In the Baltic Sea, three-spined stickleback, Gasterosteus aculeatus, have increased up to one hundred-fold closely following population collapses of their main predators, the commercial fish species Atlantic cod, Gadus morhua, Northern pike, Esox lucius, and European perch, Perca fluviatilis. We hypothesized that recreational fisheries induce trophic cascades involving cod, pike, and perch, three-spined stickleback, and lower trophic level resources. We tested this hypothesis by comparing fish community composition, algal recruitment, and algal growth in 27bays with varying degrees of protection, along the eastern Swedish coast.| Periode | 13-feb.-2018 |
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| Evenementstitel | Netherlands Annual Ecology Meeting 2018 |
| Evenementstype | Conference |
| Conferentienummer | 11 |
| Organisator | Netherlands Ecological Research Network (NERN) |
| Locatie | Lunteren, NetherlandsToon op kaart |
| Mate van erkenning | National |
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