Growth of the Mangrove Crab Ucides Cordatus (Brachyura, Ocypodidae)

Autor:	Ana Gláucia Fiscarelli, Marcelo Antonio Amaro Pinheiro, Gustavo Yomar Hattori
Rok vydání:	2005
Předmět:	photoperiodism Animal science biology Ocypodidae Ecology Sexual maturity Juvenile Carapace Growth model Aquatic Science Ucides cordatus biology.organism_classification Mangrove crab
Zdroj:	Scopus-Elsevier
ISSN:	1937-240X 0278-0372
Popis:	During monthly samplings between September 1998 and August 2000, 3,660 specimens of Ucides cordatus (Linnaeus, 1763) (2054 males and 1606 females) were obtained and examined for size (CW = carapace width) to determine growth-age equations for each sex. This species showed a slower growth, with a marked seasonal oscillation, in females as compared to males, suggesting application of the seasonal and nonseasonal von Bertalanffy growth model, respectively. CW∞ and k constant were closely similar for the two sexes (CW∞ male = 90.3 mm; CW∞ female = 88.6 mm; kmale = 0.28; kfemale = 0.26). The age at sexual maturity was estimated to be around 3 years, while the age at legal size (CW = 60 mm) was 3.8 and 4.7 years for males and females, respectively. In the laboratory, juvenile stages did not show differences in growth rates under the same temperature and photoperiod conditions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3a2d483c59771708c50f8944ef46403e https://doi.org/10.1651/c-2438 Zobrazit plný text záznamu