Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/106408
Título: Long-term monitoring of fish farms: Application of Nematode/Copepod index to oligotrophic conditions
Autores/as: Riera, R. 
Sanchez-Jerez, P.
Rodríguez, M.
Monterroso, Ó.
Ramos, E.
Clasificación UNESCO: 251092 Acuicultura marina
Palabras clave: Meiofauna
Nematodes
Copepods
Fish farming
Fecha de publicación: 2012
Publicación seriada: Marine Pollution Bulletin
Resumen: Interannual variability (2003–2008) of meiofaunal assemblages were analyzed in sediments beneath fish cages (Impact group) and in areas not affected by aquaculture activities (Control group). Organisms responded with spatial and seasonal variation in meiofauna assemblages, with an abrupt increase of abundances in locations beneath fish cages throughout the study period. This increase was greater during the last sampling year (2008) and mainly due to high abundances of nematodes. Univariate analyses showed differences between control and impacted sites at both sites, however, only significant variations were found in Los Gigantes, which are consistent with seasonal meiofauna variations throughout the study period. These results are partially explained by differences in current velocity between both sampling areas. The Ne/Co index showed the same trend and it seems to be a reliable index in sediment slightly affected by aquaculture wastes. This index is especially recommended in oligotrophic areas (e.g. Canary Islands) where meiofaunal assemblages are poorly represented in terms of abundances.
URI: http://hdl.handle.net/10553/106408
ISSN: 0025326X
DOI: 10.1016/j.marpolbul.2012.01.014
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