Differences in trophic resources and niches of two juvenile predatory species in three Pangani estuarine zones, Tanzania: stomach contents and stable isotope approaches

Journal of Biological Research

Alistidia Paul Mwijage¹  Daniel Abel Shilla² 

[1] Tanzania Fisheries Research Institute (TAFIRI)—Kyela Centre;University of Dar es Salaam

关键词: Juvenile fish;    Predator;    Trophic resources;    Niches;    Pangani estuary;   

DOI  :  10.1186/s40709-018-0084-4

学科分类：生物科学（综合）

来源: Springer

【 摘 要 】

BackgroundEstuaries are primary habitats that serve as feeding and nursery grounds for most juvenile marine fish. However, estuaries have been used as fishing grounds by the artisanal fishers in Tanzania. The slow-growing predatory fish at juvenile and sub-adult stages are among the most frequently caught species that functionally enhance multiple linkages of energy pathways within the food web. Stomach contents and stable isotopes (δ13C and δ15N) were used to describe the nutritional sources and trophic niches between the co-existing benthic, predatory species, Carangoides chrysophrys and Epinephelus malabaricus in the Pangani estuary, Tanzania.

【 授权许可】

Free