TY - JOUR
T1 - Size composition and fecundity of the rock crab grapsus grapsus (Linnaeus, 1758) in the islands of navachiste bay, Sinaloa, Mexico
AU - Rubio, Yecenia Gutierrez
AU - Gonzalez, Juan Francisco Arzola
AU - Perez, Jorge Saul Ramirez
AU - Dominguez, Guillermo Rodriguez
AU - Gonzalez, Raul Perez
AU - Gomez, Andres Martin Gongora
AU - Pineda, Maria Candelaria Valdez
AU - Gaxiola, Jesus Manuel Diaz
AU - Cardenas, Rebeca Sanchez
AU - Guevara, Luis Antonio Salcido
N1 - Publisher Copyright:
© 2020, Indian Council of Agricultural Research. All rights reserved.
PY - 2020
Y1 - 2020
N2 - The present study analysed the size composition and fecundity of Grapsus grapsus (Linnaeus, 1758) in the intertidal regions of Guasayeye, La Ventana and San Lucas islands in Navachiste Bay, Sinaloa, Mexico. Samples were collected from November 2017 to October 2018 with a bimonthly periodicity and sampling stations were established in each island. Crab samples were collected randomly at nocturnal low tide. Sex of the crabs was determined and carapace width (CW), length (L) and height (H) in mm, and their weight (W) in g were measured. Biometric correlations were performed. Fecundity was estimated in gravid females. The highest percentage of capture for females was 53.3% whereas for males was 46.7% and the sex ratio was 1.15:1. The highest percentage was in San Lucas Island (41.4%) and the lowest in La Ventana (27.7%). Maximum CW (69.3 mm) and weight (137.5 g) were recorded in San Lucas. Island, while the lowest CW (9.3 mm) and weight (0.5 g) were recorded in Guasayeye Island. No significant difference in size (CW and W) were observed between sexes or between islands. The average fecundity for female was 9,245 eggs. A high biometric correlation was obtained (r2=0.98) between the morphometric variables and G. grapsus was found to have an isometric growth.
AB - The present study analysed the size composition and fecundity of Grapsus grapsus (Linnaeus, 1758) in the intertidal regions of Guasayeye, La Ventana and San Lucas islands in Navachiste Bay, Sinaloa, Mexico. Samples were collected from November 2017 to October 2018 with a bimonthly periodicity and sampling stations were established in each island. Crab samples were collected randomly at nocturnal low tide. Sex of the crabs was determined and carapace width (CW), length (L) and height (H) in mm, and their weight (W) in g were measured. Biometric correlations were performed. Fecundity was estimated in gravid females. The highest percentage of capture for females was 53.3% whereas for males was 46.7% and the sex ratio was 1.15:1. The highest percentage was in San Lucas Island (41.4%) and the lowest in La Ventana (27.7%). Maximum CW (69.3 mm) and weight (137.5 g) were recorded in San Lucas. Island, while the lowest CW (9.3 mm) and weight (0.5 g) were recorded in Guasayeye Island. No significant difference in size (CW and W) were observed between sexes or between islands. The average fecundity for female was 9,245 eggs. A high biometric correlation was obtained (r2=0.98) between the morphometric variables and G. grapsus was found to have an isometric growth.
KW - Fecundity
KW - Grapsus grapsus
KW - Navachiste islands
KW - Population
KW - Rock crab
KW - Size composition
UR - http://www.scopus.com/inward/record.url?scp=85083101627&partnerID=8YFLogxK
U2 - 10.21077/ijf.2019.67.1.87526-17
DO - 10.21077/ijf.2019.67.1.87526-17
M3 - Artículo
AN - SCOPUS:85083101627
SN - 0970-6011
VL - 67
SP - 129
EP - 134
JO - Indian Journal of Fisheries
JF - Indian Journal of Fisheries
IS - 1
ER -