Population dynamics of tambaqui, Colossoma macropomum Cuvier, in the Lower Amazon, Brazil

Population dynamics of tambaqui, Colossoma macropomum Cuvier, in the Lower Amazon, Brazil Fishery statistics and length data series for Colossoma macropomum Cuvier obtained during 1992 and 1993 in the Lower Amazon, Brazil were used to describe the fishery and to estimate growth and mortality rates. Mean population parameters were L∞ = 119.85 cm (total length), W∞ = 33.4 kg, K = 0.228 year–1, C = 0.505, Winter Point = July, M = 0.445 year–1, F = 0.94 year–1 and Lc = 28.29 cm. Yield‐per‐recruit analysis showed that an excessive fishing effort and principally a very low length at first capture lead to an increase in overfishing in the region. Corrective measures are recommended. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Fisheries Management & Ecology Wiley

Population dynamics of tambaqui, Colossoma macropomum Cuvier, in the Lower Amazon, Brazil

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Publisher
Wiley
Copyright
Blackwell Science Ltd, Oxford
ISSN
0969-997X
eISSN
1365-2400
D.O.I.
10.1046/j.1365-2400.1996.d01-154.x
Publisher site
See Article on Publisher Site

Abstract

Fishery statistics and length data series for Colossoma macropomum Cuvier obtained during 1992 and 1993 in the Lower Amazon, Brazil were used to describe the fishery and to estimate growth and mortality rates. Mean population parameters were L∞ = 119.85 cm (total length), W∞ = 33.4 kg, K = 0.228 year–1, C = 0.505, Winter Point = July, M = 0.445 year–1, F = 0.94 year–1 and Lc = 28.29 cm. Yield‐per‐recruit analysis showed that an excessive fishing effort and principally a very low length at first capture lead to an increase in overfishing in the region. Corrective measures are recommended.

Journal

Fisheries Management & EcologyWiley

Published: Dec 1, 1996

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