Liu, Yonglin and Luo, Lin and Feng, Yang and Li, Junmin and Su, Bo and Qiu, Zhigao (2025) Impact of climate change on global catches of marine fisheries from 1971 to 2020. pp. 996-1013.
Full text not available from this repository. (Request a copy)Abstract
Marine fisheries catches have significant economic, social, and cultural importance for coastal communities and nations worldwide. In addition to overfishing and predation, oceanic conditions linked to climate variability profoundly affect catches of oceanic fish species. Based on the fishery data from the Food and Agriculture Organization (FAO) of the United Nations and multiple physical and biogeochemical datasets, we examined the correlation between major modes of climate variability at high and low frequency and multiple key fish species in five major fishing grounds worldwide. The results reveal that over 80% of selected key fish species have declined over the past five decades, with more than 50% transitioning from an increasing to a decreasing trend in the 1990s. Additionally, over 80% of fish species directly correlate with low-frequency climate indices, including Pacific Decadal Oscillation (PDO), Atlantic Multi-decadal Oscillation (AMO) and tropical southern Atlantic (TSA). However, less than 40% of fish species exhibit a direct association with high-frequency climate indices of El Niño Southern Oscillation (ENSO), North Atlantic Ocean (NAO), and Atlantic Niño (ATL3). Synthetic analysis on the Sea Surface Temperature (SST), Mixed Layer Depth (MLD) and chlorophyll a revealed that shifts in the low-frequency climate can directly affect the habitats of numerous fish species, and subsequently influence their fishing yields. Specially, negative SST anomalies and positive chlorophyll-a anomalies were observed during a positive phase of PDO in the central and western Pacific regions, resulting in an increased catch values of Alaska pollock, Pacific sardine, and Chilean jack mackerel. Similar changes occur in positive and negative phases of other low frequency indices. Our research offered a comprehensive perspective on oceanic fish catch responses to climate change, serving as a guide for formulating effective management strategies for marine fish resources.
| Item Type: | Articles |
|---|---|
| Keywords: | Climate Change, Marine Fisheries, Overfishing, Fishing Ground, Fish Species, Coastal Communities, Fish Catch, Fisheries Resources, FAO |
| Subjects: | Disasters and Climate Change |
| Depositing User: | Kokila ICSF Krish |
| Date Deposited: | 23 Jun 2025 09:14 |
| Last Modified: | 23 Jun 2025 09:14 |
| URI: | http://icsfarchives.net/id/eprint/22195 |
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