A comparison of the allometric growth in Uca leptodactyla (Crustacea: Brachyura: Ocypodidae) from two subtropical estuaries

The allometric growth of Uca leptodactyla from two distinct subtropical estuaries on the Brazilian coast was evaluated concerning its growth pattern and size at onset of sexual maturity. Females attained maturity at similar sizes in both sites (4·1 mm of carapace length in Indaiá and 4·2 mm in Ubatu...

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Bibliographic Details
Published in:Journal of the Marine Biological Association of the United Kingdom 2004-08, Vol.84 (4), p.733-735
Main Authors: Cardoso, Rosana Carina Flores, Negreiros-Fransozo, Maria Lucia
Format: Article
Language:English
Subjects:
Adults
Analysis of covariance
Biological and medical sciences
Brachyura
Crustacea
Crustaceans
Decapoda
Estuaries
Fundamental and applied biological sciences. Psychology
Invertebrates
Marine
Morphology. Histology. Cytology
Ocypodidae
Research Article
Rivers
Sediments
Sexual maturity
Software
Uca leptodactyla
Variance analysis
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Summary:The allometric growth of Uca leptodactyla from two distinct subtropical estuaries on the Brazilian coast was evaluated concerning its growth pattern and size at onset of sexual maturity. Females attained maturity at similar sizes in both sites (4·1 mm of carapace length in Indaiá and 4·2 mm in Ubatumirim), while males differed slightly. They reached the size at sexual maturity of 5·3 mm of carapace length in Indaiá and 4·6 mm in Ubatumirim. Growth pattern is usually similar among crabs from distinct sites while size at sexual maturity is frequently different. However, in the case of U. leptodactyla it did not occur, probably due to the strong habitat similarity and intrinsic features of this species.
ISSN:0025-3154
1469-7769
DOI:10.1017/S0025315404009828h