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Some data on the growth of Arius proops (Ariidae, Siluriforme) in the estuaries of French Guyana

Published online by Cambridge University Press:  15 January 1989

Frédérique Lecomte ,
François J. Meunier  and
Ricardo Rojas-Beltran
Frédérique Lecomte
Affiliation:
UA CNRS n° 1137, Équipe « Formations Squelettiques », Laboratoire d'Anatomie Comparée, Université Paris-VII, 2, place Jussieu, 75251 Paris Cedex 05, France
François J. Meunier
Affiliation:
UA CNRS n° 1137, Équipe « Formations Squelettiques », Laboratoire d'Anatomie Comparée, Université Paris-VII, 2, place Jussieu, 75251 Paris Cedex 05, France Laboratoire d'Hydrobiologie, INRA, BP n° 709, 97387 Kourou Cedex, Guyane française
Ricardo Rojas-Beltran
Affiliation:
Laboratoire d'Hydrobiologie, INRA, BP n° 709, 97387 Kourou Cedex, Guyane française Institut de Limnologie, Station d'Hydrobiologie Lacustre, 75, avenue de Corzent, 74203 Thonon-les-Bains Cedex, France
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Abstract

The skeletochronological analysis of pectoral spiny rays in the silurid Arius proops, collected during the "little summer of March", confirms the presence of a slow growth period during March and April in the rivers of French Guyana. Moreover, this study shows that the longevity of the species is short, 3 and a half years for the females and 3 years for the males, while their growth rate is relatively high, especially during the first half of their life.

Keywords

ArriidaeFrench GuyanagrowthskeletochronologyAriidaeGuyane françaisecroissancesquelettochronologie
Type
Research Article
Information
Aquatic Living Resources , Volume 2 , Issue 1 , January 1989 , pp. 63 - 68
Copyright
© IFREMER-Gauthier-Villars, 1989

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