Spatial variations in fish assemblage structure in a southeastern Brazilian reservoir

التفاصيل البيبلوغرافية
العنوان:	Spatial variations in fish assemblage structure in a southeastern Brazilian reservoir
المؤلفون:	B. O. Sanches, R. M. Hughes, D. R. Macedo, M. Callisto, G. B. Santos
المصدر:	Brazilian Journal of Biology, Vol 76, Iss 1, Pp 185-193
بيانات النشر:	Instituto Internacional de Ecologia.
المجموعة:	LCC:Science LCC:Biology (General) LCC:Zoology LCC:Botany
مصطلحات موضوعية:	fish community, Upper Paraná River Basin, spatial gradient, Science, Biology (General), QH301-705.5, Zoology, QL1-991, Botany, QK1-989
الوصف:	Abstract We assessed the fish assemblage structure and composition of Nova Ponte Reservoir (Araguari River, Upper Paraná Basin, Brazil). We observed significant differences in abundance (p = 0.0003), richness (p = 0.0005) and diversity (p = 0.02) between lacustrine and riverine zones of the reservoir. Nine species were significantly more abundant in the riverine region: Astyanax altiparanae, Astyanax gr. fasciatus, Galeocharax knerii, Hoplias intermedius, Hypostomus sp., Leporinus friderici, Leporinus obtusidens, Pimelodus maculatus and Schizodon nasutus. The results indicated a longitudinal gradient in the composition and abundance of fishes in Nova Ponte Reservoir, reinforcing the importance of freely flowing riverine reaches for conserving native neotropical ichthyofauna and reflecting the strong adaptation of these species to riverine systems.
نوع الوثيقة:	article
وصف الملف:	electronic resource
اللغة:	English
تدمد:	1678-4375 1519-6984
Relation:	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842016000100185&lng=en&tlng=en; https://doaj.org/toc/1678-4375
DOI:	10.1590/1519-6984.16614
URL الوصول:	https://doaj.org/article/cedcf9e41c6d457dbd348926f83c63cb
رقم الأكسشن:	edsdoj.f9e41c6d457dbd348926f83c63cb
قاعدة البيانات:	Directory of Open Access Journals

الوصف
تدمد:	16784375 15196984
DOI:	10.1590/1519-6984.16614