SEASONAL FLUCTUATION OF PLANKTONIC ROTIFERS IN AZIBO RESERVOIR (PORTUGAL)

• Tipo: Artigo em Revista Científica Internacional
• Data: 1994

Autores

Vitor Manuel Vasconcelos (Autor) Outra

Revista

Título: Hydrobiologia

Vol. 294

Páginas: 177-184

ISSN: 0018-8158

Editora: Springer Nature

Indexação

ISI Web of Knowledge - 3 Citações

Scopus - 5 Citações

Outras Informações

ID Authenticus: P-001-J6P

DOI: 10.1007/bf00021290

Abstract (EN): The rotifers of the recently-commissioned Azibo reservoir were studied during two years. The community was similar to that of other portuguese reservoirs with Keratella cochlearis, Polyarthra spp., Asplanchna priodonta and Collotheca pelagica dominant, although densities varied strongly. Maximum rotifer density was 640 ind l-1 in 1987 and 315 ind l-1 in 1988. During the first year two density peaks were observed, while in the second year fluctuations were irregular. Phytoplankton availability was considered the main reason for the fluctuation of rotifer density, although temperature, dissolved oxygen and cladoceran interference may also have played a role. A high density of Anabaena flos-aquae might have facilitated the dominance of K. cochlearis in 1988.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 8