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Fish larvae distribution among different habitats in coastal East Africa
Hedberg, P.; Tomband, F.; Gullström, M.; Jiddawi, N.S.; Winder, M. (2019). Fish larvae distribution among different habitats in coastal East Africa. J. Fish Biol. 94(1): 29-39. https://dx.doi.org/10.1111/jfb.13879
In: Journal of Fish Biology. Fisheries Society of the British Isles: London,New York,. ISSN 0022-1112; e-ISSN 1095-8649, meer
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| Auteurs | | Top |
- Hedberg, P.
- Tomband, F.
- Gullström, M.
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| Abstract |
Fish larvae abundances, diversity and trophic position across shallow seagrass, coral reef and open water habitats were examined to characterize their distribution in coastal East Africa. Larvae were identified to family and analysed for abundance differences between sites and habitats, trophic level using stable‐isotope analysis and parental spawning mode. Abundances differed greatly between sites with the highest numbers of larvae occurring in the open‐water habitats. Larval fish diversity was high across habitats with 51 families identified with small differences between sites and habitats. Notably, larvae of abundant large herbivorous fishes present in reef and seagrass habitats were almost completely absent at all sampling locations. In the seagrass, demersal spawned larvae were more abundant compared with the reef and open‐water habitats. Stable‐isotope analysis revealed that feeding fish larvae have a varied diet, occupying trophic‐level two to three and utilizing planktonic prey. This study offers new insights into distributional aspects of fish larvae along the East African coast where such information is sparse. |
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