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

Relative growth, morphological sexual maturity, heterochely, and handedness in Panopeus occidentalis (Brachyura, Panopeidae)

Full text
Santos, Fernanda Monchelato [1] ; Pescinelli, Regis Augusto [1] ; Farinelli Pantaleao, Joao Alberto [1, 2] ; Costa, Rogerio Caetano [1]
Total Authors: 4
[1] Sao Paulo State Univ UNESP, Fac Sci, Dept Biol Sci, Lab Biol Marine & Freshwater Shrimp LABCAM, Sao Paulo - Brazil
[2] Fed Univ Triangulo Mineiro UFTM, Dept Environm Engn, Uberaba - Brazil
Total Affiliations: 2
Document type: Journal article
Source: INVERTEBRATE REPRODUCTION & DEVELOPMENT; v. 62, n. 2, p. 74-81, 2018.
Web of Science Citations: 0

Studies on relative growth and sexual maturity are important to understand the reproductive biology of a species. The aims of this study were to determine the relative growth and to estimate the size of Panopeus occidentalis at morphological sexual maturity, as well as to confirm whether this species demonstrates heterochely or handedness. Individuals were collected every two months from March 2013 to July 2014 in the intertidal estuarine zone of Cananeia, Sao Paulo, Brazil. The following measurements were taken: carapace width (CW), carapace length (CL), right and left cheliped propodus length (CPL), right and left cheliped propodus height (CPH), right and left cheliped propodus width (CPW), abdomen width (AW), and first pleopod length (FPL). The morphometric relationship used to estimate the size at morphological sexual maturity were CW vs. AW for females and CW vs. FPL for males; these comparisons yielded estimated CW values of 15.60 mm and 16.67 mm, respectively. Heterochely was observed but handedness was not present. The species has a major cheliped on one side, but the side is not constant. This study provides the first insights on the relative growth, sexual maturity, heterochely, and handedness on a population of P. occidentalis in a conserved area. (AU)

FAPESP's process: 13/12136-4 - Population dynamics of the shrimp Alpheus brasileiro Anker, 2012 (Decapoda: Caridea: Alpheidae) in Cananéia,south of São Paulo State
Grantee:Régis Augusto Pescinelli
Support type: Scholarships in Brazil - Master
FAPESP's process: 15/04701-9 - Relative growth and morphological sexual maturity of Panopeus occidentalis Saussure, 1857 (Brachyura; Panopeidae) in Cananéia, São Paulo
Grantee:Fernanda Monchelato dos Santos
Support type: Scholarships in Brazil - Scientific Initiation
FAPESP's process: 10/50188-8 - Decapod crustaceans: multi-disciplinary characterization of the sea biodiversity of the State of São Paulo (taxonomy, spermiotaxonomy, molecular biology and population dynamics)
Grantee:Fernando Luis Medina Mantelatto
Support type: BIOTA-FAPESP Program - Thematic Grants