Reproductive pattern comparison of Uca thayeri Rathbun, 1900 and U. uruguayensis Nobili, 1901 (Crustacea, Decapoda, Ocypodidae)

Tânia Marcia Costa; Stella Maris Januário Silva; Maria Lucia Negreiros-Fransozo

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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Reproductive pattern comparison of Uca thayeri Rathbun, 1900 and U. uruguayensis Nobili, 1901 (Crustacea, Decapoda, Ocypodidae)

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Author(s):	Tânia Marcia Costa ^[1] ; Stella Maris Januário Silva ^[2] ; Maria Lucia Negreiros-Fransozo ^[3] Total Authors: 3
Affiliation:	^[1] UNESP - Brasil ^[2] UNESP. IBB. Departamento de Zoologia - Brasil ^[3] UNESP. IBB. Departamento de Zoologia - Brasil Total Affiliations: 3
Document type:	Journal article
Source:	Brazilian Archives of Biology and Technology; v. 49, n. 1, p. 117-123, 2006-01-00.
Abstract
Ovigerous females of Uca thayeri and U. uruguayensis were used to achieve and compare their reproductive pattern. The females mean size was 6.6 ± 0.8mm for U. uruguayensis and 17.3± 4.4mm for U. thayeri. The mean fecundity obtained for U. uruguayensis was 1883 ± 490 eggs (N = 27) and for U. thayeri was 31068 ± 11186 eggs (N = 31). The differences observed in reproductive pattern of U. thayeri and U. uruguayensis suggest an adaptive strategy by each species: U. thayeri presented seasonal reproduction with a pronounced intensity from January to March and higher fecundity, while U. uruguayensis reproduction was continuous all year round, but with lower fecundity. (AU)

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