Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Assessment of reproductive capacity in females of Callinectes danae Smith, 1869 (Brachyura, Portunoidea) during a period of high reproductive activity

Full text
Author(s):
Antunes, Mariana [1] ; Fransozo, Vivian [2, 1] ; Castilho, Antonio Leao [1] ; Cobo, Valter Jose [1, 3] ; Teixeira, Gustavo Monteiro [4, 1] ; Fransozo, Adilson [1]
Total Authors: 6
Affiliation:
[1] Univ Estadual Paulista, Inst Biociencias, NEBECC Study Grp Crustacean Biol Ecol & Culture, Dept Zool, BR-18168970 Botucatu, SP - Brazil
[2] Univ Estadual Sudoeste Bahia, Dept Ciencias Nat, BR-45031900 Vitoria Da Conquista, BA - Brazil
[3] Univ Taubate, LabBMar Marine Biol Lab, BR-12030180 Taubate, SP - Brazil
[4] Univ Estadual Londrina, Dept Biol Anim & Vegetal, BR-86057970 Londrina, PR - Brazil
Total Affiliations: 4
Document type: Journal article
Source: INVERTEBRATE REPRODUCTION & DEVELOPMENT; v. 59, n. 1, p. 9-16, JAN 2 2015.
Web of Science Citations: 2
Abstract

The reproductive capacity of the swimming crab Callinectes danae Smith, 1869 was assessed based on the reproductive investment (RI) of ovigerous females and the gonadosomatic index (GI) of non-ovigerous adult females. Crabs were collected in June 2009 with a shrimp fishing boat at Ubatuba (23 degrees 26 ` S 45 degrees 02 ` W) Sao Paulo, Brazil. Overall, 191 adult females were analyzed, of which 108 were ovigerous and 83 non-ovigerous. The size of ovigerous females ranged from 54.5 to 79.8mm carapace width (CW) and non-ovigerous females ranged from 56.0 to 80.9mm CW. RI values did not differ among the size classes (ANOVA, p>0.05), with an overall mean of 15.8%. The same occurred with the Gonadossomatic index for non-ovigerous females, for which the mean value was 11.7%. The regression between the dry weight of the egg mass and the dry weight of the crab (Student's t, p=0.25; t(tab)=1.66; t(cal)=0.66) indicated an isometric relationship for the variables analyzed. The simultaneous occurrence of gonadal maturation and embryonic development in ovigerous females suggests that these crabs may spawn at least twice in the same breeding season and reveals the need for evaluation of the allocation of energy in subsequent spawns. (AU)