M.P. Olivar , C. López-Pérez , A. Sabatés , A.N. Sarmiento-Lezcano
{"title":"Surface swarms of the lanternfish Myctophum punctatum associated to dolphin presence","authors":"M.P. Olivar , C. López-Pérez , A. Sabatés , A.N. Sarmiento-Lezcano","doi":"10.1016/j.seares.2025.102597","DOIUrl":null,"url":null,"abstract":"<div><div>The neustonic layer of the ocean are visited at night time by a large number of organisms for feeding or breeding. This study reports large aggregations of the myctophid <em>Myctophum punctatum</em> at night in the strictly sea surface layer of the water column and the co-occurrence of dolphins swimming and probably feeding on these fish. The study was based on fish captures obtained from neuston hauls and dolphins observations in the Alboran Sea (western Mediterranean), and in oceanic waters off Lisboa (temperate Atlantic). Data on the abundance, biomass, size frequency distributions and Gonadosomatic Index of <em>M. punctatum</em> were analysed, and the relevance of these high aggregations both for the biology of the species and as a source of prey for the co-occurring dolphins is discussed.</div></div>","PeriodicalId":50056,"journal":{"name":"Journal of Sea Research","volume":"206 ","pages":"Article 102597"},"PeriodicalIF":2.1000,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Sea Research","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S138511012500036X","RegionNum":4,"RegionCategory":"地球科学","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
The neustonic layer of the ocean are visited at night time by a large number of organisms for feeding or breeding. This study reports large aggregations of the myctophid Myctophum punctatum at night in the strictly sea surface layer of the water column and the co-occurrence of dolphins swimming and probably feeding on these fish. The study was based on fish captures obtained from neuston hauls and dolphins observations in the Alboran Sea (western Mediterranean), and in oceanic waters off Lisboa (temperate Atlantic). Data on the abundance, biomass, size frequency distributions and Gonadosomatic Index of M. punctatum were analysed, and the relevance of these high aggregations both for the biology of the species and as a source of prey for the co-occurring dolphins is discussed.
期刊介绍:
The Journal of Sea Research is an international and multidisciplinary periodical on marine research, with an emphasis on the functioning of marine ecosystems in coastal and shelf seas, including intertidal, estuarine and brackish environments. As several subdisciplines add to this aim, manuscripts are welcome from the fields of marine biology, marine chemistry, marine sedimentology and physical oceanography, provided they add to the understanding of ecosystem processes.