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Male reproductive strategy and reserve allocation in sand smelt from brackish lagoons of southern France

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In male sand smelt Atherina boyeri, from three coastal brackish lagoons of southern France, the duration of the reproductive season differed according to fish size: larger fish exhibited an extended reproductive season from February to August while smaller males reproduced only from April to June‐July. Smaller and larger fish showed differences in their seasonal pattern of reserves. Through the cold season, energy content was exhausted for over‐winter maintenance and reproductive needs, and was restored just after fish ceased reproducing. In smaller fish, however, reserves were more rapidly restored than in larger fish, and exhibited a decrease in autumn. This result suggested that small fish invested their energy into growth and winter survival rather than reproduction while older fish invested in reproduction. These results are discussed in terms of life history Strategies.

Document Type: Research Article


Affiliations: Laboratoire d'Ichthyologie, case 102, UniversitSeA Montpellier II, Place Eugène Bataillon, 34095 Montpellier cedex 5, France

Publication date: 2002-03-01

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