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dc.contributor.authorFolkvord, Arild
dc.contributor.authorGundersen, Geir
dc.contributor.authorAlbretsen, Jon
dc.contributor.authorAsplin, Lars L
dc.contributor.authorKaartvedt, Stein
dc.contributor.authorGiske, Jarl
dc.date.accessioned2015-08-24T08:35:11Z
dc.date.available2015-08-24T08:35:11Z
dc.date.issued2015-08-11
dc.identifier.issn0706-652X
dc.identifier.issn1205-7533
dc.identifier.doi10.1139/cjfas-2015-0040
dc.identifier.urihttp://hdl.handle.net/10754/575657
dc.description.abstractGrowth and survival of Maurolicus muelleri larvae in Herdlefjorden, Norway were investigated by daily otolith increment analysis. While high egg densities were generally observed throughout the spawning season, three cohorts each with a narrow window of hatching dates were identified. The first of these cohorts was characterized by low growth and poor morphometric condition and disappeared from the fjord during autumn. High resolution drift modeling indicated that Herdlefjorden had a net export of larvae and negligible import in the period cohort 1 disappeared. Yet, the advective loss rate of larvae was not considered high enough to explain the near complete disappearance of the first cohort. An otolith based growth chronology indicated that growth conditions in Herdlefjorden improved noticeably around mid-September, and remained favorable the following month. The analysis of daily otolith increments could thus be used to document within-season variability in larval growth and survival. The low and variable survival due to short term fluctuations in environmental conditions indicate that multiple batch spawning is an adequately evolved life history strategy for marine planktivorous fish such as M. muelleri.
dc.publisherCanadian Science Publishing
dc.titleIMPACT OF HATCH-DATE ON EARLY LIFE GROWTH AND SURVIVAL OF MUELLER’S PEARLSIDE (MAUROLICUS MUELLERI) LARVAE, AND LIFE-HISTORY CONSEQUENCES
dc.typeArticle
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentMarine Science Program
dc.contributor.departmentOffice of the VP
dc.contributor.departmentRed Sea Research Center (RSRC)
dc.identifier.journalCanadian Journal of Fisheries and Aquatic Sciences
kaust.personKaartvedt, Stein


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