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Mondal S, Ray A, Boas M, Navus S, Lee MA, Dey S, Barman KK. Can the delayed effects of climatic oscillations have a greater influence on global fisheries compared to their immediate effects? PLoS One 2024; 19:e0307644. [PMID: 39208030 PMCID: PMC11361439 DOI: 10.1371/journal.pone.0307644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Accepted: 07/10/2024] [Indexed: 09/04/2024] Open
Abstract
Climatic oscillations affect fish population dynamics, ecological processes, and fishing operations in maritime habitats. This study examined how climatic oscillations affect catch rates for striped, blue, and silver marlins in the Atlantic Ocean. These oscillations are regarded as the primary factor influencing the abundance and accessibility of specific resources utilized by fishers. Logbook data were obtained from Taiwanese large-scale fishing vessels for climatic oscillations during the period 2005-2016. The results indicated that the effect of the Subtropical Indian Ocean Dipole on marlin catch rates did not have a lag, whereas those of the North Atlantic Oscillation, Atlantic Multidecadal Oscillation, Pacific Decadal Oscillation, and Indian Ocean Dipole had various lags. Pearson's correlation analysis was conducted to examine the correlations between atmospheric oscillation indices and marlin catch rates, and wavelet analysis was employed to describe the influences of the most relevant lags. The results indicated that annual atmospheric fluctuations and their lags affected the abundance and catchability of striped, blue, and silver marlins in the study region. This, in turn, may affect the presence of these species in the market and lead to fluctuations in their prices in accordance with supply and demand. Overall, understanding the effects of climatic oscillations on fish species are essential for policymakers and coastal communities seeking to manage marine resources, predict changes in marine ecosystems, and establish appropriate methods for controlling the effects of climate variability.
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Affiliation(s)
- Sandipan Mondal
- Department of Environmental Biology and Fishery Science, National Taiwan Ocean University, Keelung City, Taiwan
- Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung City, Taiwan
| | - Aratrika Ray
- Department of Environmental Biology and Fishery Science, National Taiwan Ocean University, Keelung City, Taiwan
| | - Malagat Boas
- Department of Environmental Biology and Fishery Science, National Taiwan Ocean University, Keelung City, Taiwan
- Department of Fisheries and Marine Resources, Papua New Guinea University of Natural Resources and Environment, Kokopo, Papua New Guinea
| | - Sawai Navus
- Department of Environmental Biology and Fishery Science, National Taiwan Ocean University, Keelung City, Taiwan
| | - Ming-An Lee
- Department of Environmental Biology and Fishery Science, National Taiwan Ocean University, Keelung City, Taiwan
- Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung City, Taiwan
- Doctoral Degree Program in Ocean Resource and Environmental Changes, National Taiwan Ocean University, Keelung, Taiwan
| | - Subhadip Dey
- Agricultural and Food Engineering Department, Indian Institute of Technology Kharagpur, Kharagpur, India
- Deutsches Zentrum für Luft- und Raumfahrt, Wessling, Germany
| | - Koushik Kanti Barman
- Center of Excellence for the Ocean Engineering, National Taiwan Ocean University, Keelung City, Taiwan
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Mondal S, Ray A, Osuka KE, Sihombing RI, Lee MA, Chen YK. Impact of climatic oscillations on marlin catch rates of Taiwanese long-line vessels in the Indian Ocean. Sci Rep 2023; 13:22438. [PMID: 38105276 PMCID: PMC10725878 DOI: 10.1038/s41598-023-49984-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 12/14/2023] [Indexed: 12/19/2023] Open
Abstract
This study explored the influence of climatic oscillations on the striped, blue, and silver marlin catch rates in the Indian Ocean by using logbook data from Taiwanese large-scale fishing vessels and climate records from 1994 to 2016. Only the Madden-Julian oscillation (MJO) and the subtropical Indian Ocean dipole (SIOD) had immediate effects on the striped and silver marlin catch rates. The positive and negative phases of the IOD at the lags of 7 and 3 years corresponded to increased and decreased catch rates, respectively, for both the striped and blue marlin, contrasting to the reverse pattern for the silver marlin. Similarly, all three marlin species experienced decreased and increased catch rates respectively during the positive and negative phases of the Pacific decadal oscillation. The striped and blue marlin catch rates decreased and increased during the positive and negative phases, respectively, of the SIOD and MJO with various lags. Our results suggest that the impacts of climatic oscillations on fish species are crucial for policymakers and coastal communities for managing marine resources, forecasting changes in marine ecosystems, and developing strategies to adapt to and mitigate the effects of climate variability.
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Affiliation(s)
- Sandipan Mondal
- Department of Environmental Biology and Fishery Science, National Taiwan Ocean University, Keelung City, 202, Taiwan
- Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung City, 202, Taiwan
| | - Aratrika Ray
- Department of Environmental Biology and Fishery Science, National Taiwan Ocean University, Keelung City, 202, Taiwan
| | - Kennedy Edeye Osuka
- Department of Earth, Ocean and Ecological Sciences, University of Liverpool, Liverpool, L69 3BX, UK
| | - Riah Irawati Sihombing
- Department of Environmental Biology and Fishery Science, National Taiwan Ocean University, Keelung City, 202, Taiwan
| | - Ming-An Lee
- Department of Environmental Biology and Fishery Science, National Taiwan Ocean University, Keelung City, 202, Taiwan.
- Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung City, 202, Taiwan.
| | - Yu-Kai Chen
- Executive Yuan, Coastal and Offshore Resources Research Center of Fisheries Research Institute Council of Agriculture, Kaohsiung, 80672, Taiwan
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Cheung WWL, Frölicher TL, Lam VWY, Oyinlola MA, Reygondeau G, Sumaila UR, Tai TC, Teh LCL, Wabnitz CCC. Marine high temperature extremes amplify the impacts of climate change on fish and fisheries. SCIENCE ADVANCES 2021; 7:eabh0895. [PMID: 34597142 DOI: 10.1126/sciadv.abh0895] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Extreme temperature events have occurred in all ocean basins in the past two decades with detrimental impacts on marine biodiversity, ecosystem functions, and services. However, global impacts of temperature extremes on fish stocks, fisheries, and dependent people have not been quantified. Using an integrated climate-biodiversity-fisheries-economic impact model, we project that, on average, when an annual high temperature extreme occurs in an exclusive economic zone, 77% of exploited fishes and invertebrates therein will decrease in biomass while maximum catch potential will drop by 6%, adding to the decadal-scale mean impacts under climate change. The net negative impacts of high temperature extremes on fish stocks are projected to cause losses in fisheries revenues and livelihoods in most maritime countries, creating shocks to fisheries social-ecological systems particularly in climate-vulnerable areas. Our study highlights the need for rapid adaptation responses to extreme temperatures in addition to carbon mitigation to support sustainable ocean development.
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Affiliation(s)
- William W L Cheung
- Institute for the Oceans and Fisheries, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Thomas L Frölicher
- Climate and Environmental Physics, Physics Institute, University of Bern, Bern, Switzerland
- Oeschger Centre for Climate Change Research, University of Bern, Bern, Switzerland
| | - Vicky W Y Lam
- Institute for the Oceans and Fisheries, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Muhammed A Oyinlola
- Institute for the Oceans and Fisheries, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Gabriel Reygondeau
- Institute for the Oceans and Fisheries, The University of British Columbia, Vancouver, British Columbia, Canada
| | - U Rashid Sumaila
- Institute for the Oceans and Fisheries, The University of British Columbia, Vancouver, British Columbia, Canada
- School of Public Policy and Global Affairs, The University of British Columbia, Vancouver, British Columbia, Canada
- Institute for Environment and Development (LESTARI), Universiti Kebangsaan Malaysia, Bangi, 43600 Selangor, Malaysia
| | - Travis C Tai
- Institute for the Oceans and Fisheries, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Lydia C L Teh
- Institute for the Oceans and Fisheries, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Colette C C Wabnitz
- Institute for the Oceans and Fisheries, The University of British Columbia, Vancouver, British Columbia, Canada
- Stanford Center for Ocean Solutions, Stanford University, Stanford, CA, USA
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