TY - JOUR
T1 - Potential yield of a rock shrimp stock, Sicyonia penicillata in the northern Gulf of California
AU - López-Martínez, Juana
AU - Chávez, Ernesto A.
AU - Hernández-Vázquez, Sergio
AU - Alcántara-Razo, Edgar
PY - 1999
Y1 - 1999
N2 - A stock of rock shrimp Sicyonia penicillata was assessed in a fishery recently opened at Bahia Kino, Sonora, Mexico. An age-structured model with stochastic recruitment was developed, which considers growth rate, natural mortality, and fishing mortality by age. Age groups were followed year by year with a stock-recruitment Ricker function where the seasonal recruitment pattern was defined as well. Simulations might be interpreted as showing a stable population with four-year cycles, reflecting a density-dependent process. In 1996, fishing intensity had an apparent compensatory effect on the stock, decreasing the amplitude of natural oscillations and maintaining the stock at a biomass level similar to the size observed in a condition of no exploitation. The stock was found currently underexploited. As a result of the seasonal accessibility and the age of first-catch fishing (adult shrimp), the stock might be capable to withstand high fishing pressure without being overexploited.
AB - A stock of rock shrimp Sicyonia penicillata was assessed in a fishery recently opened at Bahia Kino, Sonora, Mexico. An age-structured model with stochastic recruitment was developed, which considers growth rate, natural mortality, and fishing mortality by age. Age groups were followed year by year with a stock-recruitment Ricker function where the seasonal recruitment pattern was defined as well. Simulations might be interpreted as showing a stable population with four-year cycles, reflecting a density-dependent process. In 1996, fishing intensity had an apparent compensatory effect on the stock, decreasing the amplitude of natural oscillations and maintaining the stock at a biomass level similar to the size observed in a condition of no exploitation. The stock was found currently underexploited. As a result of the seasonal accessibility and the age of first-catch fishing (adult shrimp), the stock might be capable to withstand high fishing pressure without being overexploited.
UR - http://www.scopus.com/inward/record.url?scp=0343130504&partnerID=8YFLogxK
U2 - 10.1163/156854099503627
DO - 10.1163/156854099503627
M3 - Artículo
SN - 0011-216X
VL - 72
SP - 581
EP - 590
JO - Crustaceana
JF - Crustaceana
IS - 6
ER -