TY - JOUR
T1 - Potential changes in the distribution of suitable habitat for Pacific sardine (Sardinops sagax) under climate change scenarios
AU - Petatán-Ramírez, David
AU - Ojeda-Ruiz, Miguel Ángel
AU - Sánchez-Velasco, Laura
AU - Rivas, David
AU - Reyes-Bonilla, Héctor
AU - Cruz-Piñón, Gabriela
AU - Morzaria-Luna, Hem Nalini
AU - Cisneros-Montemayor, Andrés M.
AU - Cheung, William
AU - Salvadeo, Christian
N1 - Publisher Copyright:
© 2019 Elsevier Ltd
PY - 2019/11/1
Y1 - 2019/11/1
N2 - The Pacific sardine, Sardinops sagax, is the most important fishery by volume in Mexico; however, this small pelagic species shows fluctuations in catch due to its susceptibility to environmental changes. In turn, this susceptibility leads to variations in distribution, abundance, and recruitment, making the Pacific sardine highly vulnerable to the effects of global climate change. In this study, we analyze the effects of environmental variability on the Pacific sardine distribution through the development of the habitat suitability for the Mexican Pacific. We used bathymetry, sea surface temperature (SST), sea surface salinity (SSS) and net primary productivity (NPP) to develop an ecological niche model to forecast the suitable habitat of the Pacific sardine and reproduce the historical patterns for the 2003–2017 period. We then used this model to make future projections to the year 2100 using the emission scenarios RCP 2.6, 4.5, and 8.5 proposed by the Intergovernmental Panel on Climate Change. Under the RCP models, on average, the greatest impact of climate change was observed inside the Gulf of California, with an increase in SST (+1.68 °C) and a decrease in 25% of NPP (−256 mg C m−2 d−1) reducing habitat availability for this species by 95. Stocks on the Pacific coast are projected to fluctuate substantially, similar to past events driven by environmental variability. At the regional level, a loss of suitable habitat of up to 50% is expected by the end of this century for the Pacific sardine.
AB - The Pacific sardine, Sardinops sagax, is the most important fishery by volume in Mexico; however, this small pelagic species shows fluctuations in catch due to its susceptibility to environmental changes. In turn, this susceptibility leads to variations in distribution, abundance, and recruitment, making the Pacific sardine highly vulnerable to the effects of global climate change. In this study, we analyze the effects of environmental variability on the Pacific sardine distribution through the development of the habitat suitability for the Mexican Pacific. We used bathymetry, sea surface temperature (SST), sea surface salinity (SSS) and net primary productivity (NPP) to develop an ecological niche model to forecast the suitable habitat of the Pacific sardine and reproduce the historical patterns for the 2003–2017 period. We then used this model to make future projections to the year 2100 using the emission scenarios RCP 2.6, 4.5, and 8.5 proposed by the Intergovernmental Panel on Climate Change. Under the RCP models, on average, the greatest impact of climate change was observed inside the Gulf of California, with an increase in SST (+1.68 °C) and a decrease in 25% of NPP (−256 mg C m−2 d−1) reducing habitat availability for this species by 95. Stocks on the Pacific coast are projected to fluctuate substantially, similar to past events driven by environmental variability. At the regional level, a loss of suitable habitat of up to 50% is expected by the end of this century for the Pacific sardine.
KW - Ecological niche model
KW - Range shift
KW - Small pelagics
KW - Species distribution model
UR - http://www.scopus.com/inward/record.url?scp=85070517492&partnerID=8YFLogxK
U2 - 10.1016/j.dsr2.2019.07.020
DO - 10.1016/j.dsr2.2019.07.020
M3 - Artículo
SN - 0967-0645
VL - 169-170
JO - Deep-Sea Research Part II: Topical Studies in Oceanography
JF - Deep-Sea Research Part II: Topical Studies in Oceanography
M1 - 104632
ER -