Assessing the trophic state of Linhos lake: a first step towards ecological rehabilitation

• Tipo: Artigo em Revista Científica Internacional
• Data: 2002

Autores

Pereira, R (Autor) Outra; Soares, AMVM (Autor) Outra; Ribeiro, R (Autor) Outra; Goncalves, F (Autor) Outra

Revista

Título: Journal of Environmental Management

Vol. 64

Páginas: 285-297

ISSN: 0301-4797

Editora: Elsevier

Indexação

ISI Web of Knowledge - 18 Citações

Scopus - 24 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Ciências da terra e ciências do ambiente

Outras Informações

ID Authenticus: P-000-Q5M

DOI: 10.1006/jema.2001.0521

Abstract (EN): Lack of recognition of the value of wetlands has led to the loss of considerable areas of these ecosystems in the past. Linhos lake (Figueira da Foz, Portugal) is a good example of one of these ecosystems, in which human intervention was responsible for its environmental degradation and led to its precocious terrestrialization. Physico-chemical conditions and zooplankton community structure were studied in Linhos lake, in order to evaluate ecosystem functioning and to acquire baseline information. The system is characterised by high oxygen depletion. Spatial heterogeneity was confirmed by the existence of significant differences in total densities for the three zooplanktonic groups. Rotifers were the most abundant group attaining their maximum density in April (2251.1 ind/l). Keratella quadrata, K. cochlearis, Polyarthra vulgaris, Filinia terminalis and Hexarthra mira were the main abundant species. Correspondence analysis suggested temperature as the main controlling factor in species seasonality. In order to prevent the precocious disappearance of the lake some restoration measures were proposed based on zooplankton community structure. (C) 2002 Elsevier Science Ltd.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 13