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Estimates of Secondary Production in a Co-Existent Group of Acartia Species (Copepoda, Calanoida)

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Secondary production of a congeneric species group of Acartia Dana, 1846, was estimated during a summer-autumn period (from June to October 1989) using a calculation based on the size-frequency distribution. Our study area was Málaga harbour (SE of Spain), a shallow (10 m depth) and semi-isolated ecosystem with restricted circulation. Acartia was the dominant copepod in the water column. Co-occurring species were Acartia grani, Acartia clausi, and Acartia discaudata var. mediterranea. Estimated average production was 29.12 mg dry wt m-3 d-1 (13.10 mg C m-3 3 d-1). The high values of chlorophyll concentration suggest that copepods can always find sufficient food for growth at maximum rate. The results obtained were similar to previous estimates for other Acartia species in coastal areas.

Affiliations: 1: ) Departamento de Biologia Animal, Vegetal y Ecologia, Facultad de Ciencias Experimentales, Paraje Las Lagunillas s/n, Universidad de Jaén, E-23071 Jaén, Spain; 2: ) Departamento de Ecologia, Facultad de Ciencias, Campus de Teatinos, Universidad de Málaga, E-29071 Málaga, Spain

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/content/journals/10.1163/156854097x00690
1997-01-01
2016-09-28

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