Ichthyofauna of the Mamanguape river basin, Northeastern, Brazil
| Autor: | Leonardo Oliveira-Silva, Katherine Morais Porto Viana, Robson Tamar da Costa Ramos, Yuri Gomes Ponce de Carvalho-Rocha, Telton Pedro Anselmo Ramos, Raizze da Costa Avellar |
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| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
geography geography.geographical_feature_category biology Fauna 010607 zoology Drainage basin Endangered species biology.organism_classification 010603 evolutionary biology 01 natural sciences Characidae Fishery Cichla Tributary Freshwater fish Dominance (ecology) Ecology Evolution Behavior and Systematics |
| Zdroj: | Biota Neotropica. 18 |
| ISSN: | 1676-0611 1806-129X |
| Popis: | The Mamanguape River Basin is located in a peripheral semi-arid area of South America, with its headwaters and middle reaches running through the Caatinga (from wetter to drier) and its lower reaches through the Atlantic Forest. The objective of this study was to inventory the fish fauna of the Mamanguape river basin through a comprehensive sampling and to discuss its ichthyofaunal dominance pattern. Sampling was conducted between 2015 and 2016 at 38 points throughout. The main river course was sampled at 18 fixed points during two expeditions (dry and wet seasons) using traw nets, cast nets, and dip nets, with a standardized effort. The tributaries were sampled during the dry season at 20 points using an adaptaptation of the AquaRAP methodology. A total of 32 freshwater fish species belonging to 26 genera, 16 families and six orders were recorded, predominantly from the order Characiformes and the family Characidae. Astyanax fasciatus had widest distribution and greatest abundance in the basin. Siluriformes were the second most prevalent order, with five species recorded. Cichla cf. monoculus, Poecilia reticulata and Oreochromis niloticus were non-native records for the basin. Apareiodon davisi, an Endangered species, was recorded. |
| Databáze: | OpenAIRE |
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