{"title":"Large whale entanglements in Mexico, a 25-year review from 1996 to 2021","authors":"Astrid Frisch-Jordán, Diana C. López-Arzate","doi":"10.1111/mms.13106","DOIUrl":null,"url":null,"abstract":"<p>Large whale entanglements are considered a significant threat to populations on a global scale. In the Mexican Pacific and Baja California Peninsula (1996–2021) a total of 218 confirmed entangled whales, from which 99 (45.4%) whales were fully released (66 by the Mexican Whale Disentanglement Network, known as RABEN). Five whale species were reported in confirmed entanglements: humpback (<i>Megaptera novaeangliae</i>, <i>n</i> = 187), gray (<i>Eschrichtius robustus</i>, <i>n</i> = 19), sperm (<i>Physeter macrocephalus</i>, <i>n</i> = 5), Bryde's (<i>Balaenoptera edeni</i>, <i>n</i> = 4), and fin (<i>Balaenoptera physalus</i>, <i>n</i> = 3). Eight types of fishing gear were identified out of 209 different gear sets; gill nets were the most common (<i>n</i> = 101, 48.3%), followed by pots (<i>n</i> = 49, 23.4%). Entanglements were reported in sixteen locations, and Banderas Bay had the most entanglement reports (<i>n</i> = 81, 32.8%). Several entanglements were tracked across multiple locations (<i>n</i> = 7), involving two teams with the most successful releases (<i>n</i> = 5), proving the efficiency of the RABEN entanglement response network. This information can be used to better understand entanglement impacts on large whales in the North Pacific and particularly in Mexico, to work towards mitigation of a problem that affects both whales and fishermen.</p>","PeriodicalId":18725,"journal":{"name":"Marine Mammal Science","volume":"40 3","pages":""},"PeriodicalIF":2.0000,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Marine Mammal Science","FirstCategoryId":"99","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/mms.13106","RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MARINE & FRESHWATER BIOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Large whale entanglements are considered a significant threat to populations on a global scale. In the Mexican Pacific and Baja California Peninsula (1996–2021) a total of 218 confirmed entangled whales, from which 99 (45.4%) whales were fully released (66 by the Mexican Whale Disentanglement Network, known as RABEN). Five whale species were reported in confirmed entanglements: humpback (Megaptera novaeangliae, n = 187), gray (Eschrichtius robustus, n = 19), sperm (Physeter macrocephalus, n = 5), Bryde's (Balaenoptera edeni, n = 4), and fin (Balaenoptera physalus, n = 3). Eight types of fishing gear were identified out of 209 different gear sets; gill nets were the most common (n = 101, 48.3%), followed by pots (n = 49, 23.4%). Entanglements were reported in sixteen locations, and Banderas Bay had the most entanglement reports (n = 81, 32.8%). Several entanglements were tracked across multiple locations (n = 7), involving two teams with the most successful releases (n = 5), proving the efficiency of the RABEN entanglement response network. This information can be used to better understand entanglement impacts on large whales in the North Pacific and particularly in Mexico, to work towards mitigation of a problem that affects both whales and fishermen.
期刊介绍：
Published for the Society for Marine Mammalogy, Marine Mammal Science is a source of significant new findings on marine mammals resulting from original research on their form and function, evolution, systematics, physiology, biochemistry, behavior, population biology, life history, genetics, ecology and conservation. The journal features both original and review articles, notes, opinions and letters. It serves as a vital resource for anyone studying marine mammals.
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