{"refrec":{"BRefID":233822,"RR":"Stenevik, E.K.; Nash, R.D.M.; Vikebø, F.; Fossum, P.; Bakkeplass, K. (2012). The effects of survey design and circulation pattern on the perceived abundance of herring larvae: a case study for Norwegian spring spawning herring (Clupea harengus). Fish. Oceanogr. 21(5): 363–373. http://dx.doi.org/10.1111/j.1365-2419.2012.00631.x","BEntID":225507,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":null,"RefStringPartII":". Fish. Oceanogr. 21(5): 363–373. http://dx.doi.org/10.1111/j.1365-2419.2012.00631.x","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Stenevik, E.K.; Nash, R.D.M.; Vikebø, F.; Fossum, P.; Bakkeplass, K.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Stenevik, E.K. et al.","Englishabstract":"A larval survey is used in the annual assessment as an index of the spawning stock size of Norwegian spring spawning herring (Clupea harengus). To test how inter-annual fluctuations in circulation pattern, survey design and execution of the survey affected the larval abundance estimate we conducted simulated surveys using a model framework with idealized assumptions to model larval drift and sampled larvae using several realistic survey scenarios. The results suggest that inter-annual variations in circulation pattern alone can have a profound effect on the perception of larvae abundance and that the direction of the survey (north to south versus south to north) can have a significant effect on the estimated abundance, particularly if hatching occurs over a short period of time. Additionally, disruptions to a continuous survey schedule also have an effect and, as such, sampling strategies in case of disruption to the survey are proposed.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"The effects of survey design and circulation pattern on the perceived abundance of herring larvae: a case study for Norwegian spring spawning herring (Clupea harengus)","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-04-18 01:31:36.783270","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Herring; Norway coast; Survey design","OtherDescriptors":null,"Notes":null,"AnaPub":2012,"MonPub":null,"DateUpdate":"2018-02-13","DateCreate":"2014-02-24","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000306736000004","VABBcode":null,"OpenAcc":0,"DOI":"10.1111/j.1365-2419.2012.00631.x"},"refs":null,"anarec":{"AnaID":233822,"PubliDate":2012,"Pagination":"363–373","XtraPublOfAnaID":null,"ISBN":null,"Volume":"21","Issue":"5","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":42703,"SerRR":"Fisheries Oceanography. 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