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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

Information

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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