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Climate change, stock productivity, and demersal fisheries management: a central Mediterranean case study.

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Title: Climate change, stock productivity, and demersal fisheries management: a central Mediterranean case study.
Authors: Bitetto, I., Martiradonna, A., Zupa, W., Chiarini, M., Carbonara, P., Melià, P., Savina-Rolland, M., Spedicato, M.T., Rindorf, A.
Source: Canadian Journal of Fisheries & Aquatic Sciences; 11/6/2025, Vol. 82, p1-15, 15p
Subject Terms: CLIMATE change, FISHERY management, HISTORY of the Mediterranean Region, FISHERIES, RECRUITMENT (Population biology), SUSTAINABLE fisheries, ENVIRONMENTAL impact analysis
Geographic Terms: MEDITERRANEAN Sea, ADRIATIC Sea
Abstract: Stock–recruitment (S–R) relationships are critical for assessing stock productivity and guiding fisheries management. In the Mediterranean Sea, the estimation of accurate S–R relationships is challenging due to limited data. The Adriatic Sea, a highly productive but overfished Mediterranean region, is particularly vulnerable to climate change. Over the past two decades, significant declines in long-lived demersal (e.g., European hake) stocks in the Adriatic and Western Ionian seas have prompted targeted management measures. However, recent positive trends in medium- and short-lived stocks (e.g., shrimps) suggest that reduced coastal fishing pressure and favorable environmental conditions are driving partial stock recovery. The relative influence of these factors, and whether favorable environmental impacts will persist, remains uncertain. This study is the first to estimate environmentally mediated S–R relationships for key stocks in the investigated region. Using the BEMTOOL simulation model, we assess the biological and economic impacts of various management and climate scenarios. Results highlight the importance of integrating climate factors into mixed fisheries management to ensure the robustness of measures preventing stocks from falling below safe biological limits. [ABSTRACT FROM AUTHOR]
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Database: Complementary Index
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Abstract:Stock–recruitment (S–R) relationships are critical for assessing stock productivity and guiding fisheries management. In the Mediterranean Sea, the estimation of accurate S–R relationships is challenging due to limited data. The Adriatic Sea, a highly productive but overfished Mediterranean region, is particularly vulnerable to climate change. Over the past two decades, significant declines in long-lived demersal (e.g., European hake) stocks in the Adriatic and Western Ionian seas have prompted targeted management measures. However, recent positive trends in medium- and short-lived stocks (e.g., shrimps) suggest that reduced coastal fishing pressure and favorable environmental conditions are driving partial stock recovery. The relative influence of these factors, and whether favorable environmental impacts will persist, remains uncertain. This study is the first to estimate environmentally mediated S–R relationships for key stocks in the investigated region. Using the BEMTOOL simulation model, we assess the biological and economic impacts of various management and climate scenarios. Results highlight the importance of integrating climate factors into mixed fisheries management to ensure the robustness of measures preventing stocks from falling below safe biological limits. [ABSTRACT FROM AUTHOR]
ISSN:0706652X
DOI:10.1139/cjfas-2024-0382