Data/hora: 03/06/2024 10:41:40

Provedor de dados: | 5
País: | France
Título: | Commercial fish assemblages on New Caledonian fringing reefs submitted to different levels of ground erosion
Autores: | Letourneur, Y; Labrosse, Pierre; Kulbicki, M.
Data: | 1999-11
Ano: | 1999
Palavras-chave: | Ichtyofaune; Récif corallien; Activité minière; Apport terrigène; Océan Pacifique; Ichthyofauna; Fringing reefs; Mining activities; Terrigeneous runoff; Pacific Ocean.
Resumo: | A comparative study was conducted in two zones of the Northern Province of New Caledonia, one located windward (east coast) and the other located leeward (west coast). In each zone, three major sectors were investigated: fringing reefs close to areas of important mining activities, fringing reefs close to areas of moderate mining activities, and fringing reefs close to areas free of mining activities. In addition, on the west coast, fringing reefs close to areas of high natural ground erosion were also studied. Only commercial fish species sensus late were censused on a total of 163 stations, concerning 165 fish species. Substrate characteristics were not different between zones and sectors. However, significant differences were observed for living organisms: live coral cover was higher in non-mining sectors than in mining ones, and algal cover increased with increasing mining activities. The three main descriptors of the commercial fish communities (e.g. mean species richness, density and biomass) have all shown lower values in sectors submitted to the lowest ground erosion levels, although these trends were not all statistically significant. Similar results were found for some of the major fish families, such as the Acanthuridae and Siganidae, whereas other families had no specific pattern, such as the Lut-janidae, or a 'partial' pattern (i.e. on only one coast), such as the Serranidae, Lethrinidae, Mullidae, Labridae and Scaridae.
Tipo: | Text
Idioma: | Inglês

Identificador:

https://archimer.ifremer.fr/doc/00325/43586/44026.pdf

DOI:10.1016/S0399-1784(00)88952-5

https://archimer.ifremer.fr/doc/00325/43586/

Editor: | Gauthier-villars/editions Elsevier
Formato: | application/pdf
Fonte: | Oceanologica Acta (0399-1784) (Gauthier-villars/editions Elsevier), 1999-11 , Vol. 22 , N. 6 , P. 609-621

Fonte:

1999 Ifremer / CNRS / IRD / Editions scientifiques et medicales Elsevier SAS

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