Structure and diversity of fishes in a freshwater and coastal subtropical lagoon.

Autor: Ferreira NC; Laboratory of Biology and Cultivation of Freshwater Fish, Federal University of Santa Catarina, Aquaculture Departament, Rodovia Francisco Thomaz dos Santos 3532, Florianópolis, Santa Catarina, 88066-260, Brazil., Guereschi RM; Laboratory of Biology and Cultivation of Freshwater Fish, Federal University of Santa Catarina, Aquaculture Departament, Rodovia Francisco Thomaz dos Santos 3532, Florianópolis, Santa Catarina, 88066-260, Brazil., Machado C; Laboratory of Biology and Cultivation of Freshwater Fish, Federal University of Santa Catarina, Aquaculture Departament, Rodovia Francisco Thomaz dos Santos 3532, Florianópolis, Santa Catarina, 88066-260, Brazil., Lopes CA; Laboratory of Biology and Cultivation of Freshwater Fish, Federal University of Santa Catarina, Aquaculture Departament, Rodovia Francisco Thomaz dos Santos 3532, Florianópolis, Santa Catarina, 88066-260, Brazil., Nuñer APO; Laboratory of Biology and Cultivation of Freshwater Fish, Federal University of Santa Catarina, Aquaculture Departament, Rodovia Francisco Thomaz dos Santos 3532, Florianópolis, Santa Catarina, 88066-260, Brazil.
Jazyk: angličtina
Zdroj: Journal of fish biology [J Fish Biol] 2017 Apr; Vol. 90 (4), pp. 1265-1282. Date of Electronic Publication: 2016 Nov 18.
DOI: 10.1111/jfb.13226
Abstrakt: This study examined the fish communities of Peri Lagoon in southern Brazil to aid in the development of an effective management plan because the area is under threat from human activities. Sampling of fish fauna, ichthyoplankton and limnological data were compared between sites, differing by habitat type and characteristics such as depth, substratum composition and vegetation type. Results were significantly related to site, with the highest diversity and abundance recorded at shallow vegetated sites. A total of 14 fish species were recorded throughout the lagoon, with the most abundant being Hyphessobrycon luetkenii. Of the 14 species, half were sampled at their larval stage, suggesting a healthy and protected system. Significantly more larvae and eggs were collected during colder months (autumn to winter) and at sites closer to stream flow, possibly owing to increased food sources and habitat protection. This study highlights the importance of Peri Lagoon as a nursery ground for a wide range of fish species, providing essential information for incorporation into the future protection of fish stocks throughout Brazil.
(© 2016 The Fisheries Society of the British Isles.)
Databáze: MEDLINE
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