TY - JOUR
T1 - Efectos de la variabilidad ambiental en la abundancia de especies marinas comerciales en el norte del golfo de california
AU - Ruiz-Barreiro, T. Mónica
AU - Arreguín-Sánchez, Francisco
AU - González-Baheza, Arturo
AU - Hernández-Padilla, Juan C.
N1 - Publisher Copyright:
© 2019 CSIC.
PY - 2019
Y1 - 2019
N2 - Studies have shown that environmental variables significantly affect variation in stock abundance of marine populations. The northern Gulf of California (NGC) is a highly productive region of interest due to its fish resources and diversity. Conservation of the marine species inhabiting the region is of public interest. Our study analysed the influence of physical environmental factors on several commercial marine species, using catch per unit effort (CPUE) as a proxy for abundance. Generalized additive models were used to test the significance of selected environmental variables on stock abundance. Deseasonalized cross-correlation analysis was used to examine time-lagged correlations between CPUE and abiotic variables to identify response timings. The results suggest that for most commercial species the sea surface temperature and the long-term climate Pacific Decadal Oscillation index are the predominant predictors for species abundance, followed by the Colorado River discharge. The Multivariate ENSO Index and the Pacific-North American pattern indices also showed specific effects on certain species. The NGC is a highly dynamic region, where species respond to environmental changes according to the characteristics of their life histories.
AB - Studies have shown that environmental variables significantly affect variation in stock abundance of marine populations. The northern Gulf of California (NGC) is a highly productive region of interest due to its fish resources and diversity. Conservation of the marine species inhabiting the region is of public interest. Our study analysed the influence of physical environmental factors on several commercial marine species, using catch per unit effort (CPUE) as a proxy for abundance. Generalized additive models were used to test the significance of selected environmental variables on stock abundance. Deseasonalized cross-correlation analysis was used to examine time-lagged correlations between CPUE and abiotic variables to identify response timings. The results suggest that for most commercial species the sea surface temperature and the long-term climate Pacific Decadal Oscillation index are the predominant predictors for species abundance, followed by the Colorado River discharge. The Multivariate ENSO Index and the Pacific-North American pattern indices also showed specific effects on certain species. The NGC is a highly dynamic region, where species respond to environmental changes according to the characteristics of their life histories.
KW - Abundance of commercial
KW - Colorado River discharge
KW - Marine species
KW - Northern Gulf of California
KW - Physical environmental variables
KW - Sea surface temperature
UR - http://www.scopus.com/inward/record.url?scp=85073447251&partnerID=8YFLogxK
U2 - 10.3989/scimar.04883.11A
DO - 10.3989/scimar.04883.11A
M3 - Artículo
SN - 0214-8358
VL - 83
SP - 195
EP - 205
JO - Scientia Marina
JF - Scientia Marina
IS - 3
ER -