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Daily patterns of settlement and individual growth rates of young-of-the-year of the rockfish Sebastes inermis in a Sargassum bed

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Autor dc.contributor.author Plaza G.
Autor dc.contributor.author Katayama S.
Autor dc.contributor.author Omori M.
Fecha Ingreso dc.date.accessioned 2014-04-05T00:18:46Z
Fecha Disponible dc.date.available 2014-04-05T00:18:46Z
Fecha en Repositorio dc.date.issued 2014-04-04
dc.identifier 10.1016/j.fishres.2010.02.001
dc.description.abstract Otolith microstructure analysis was used to reveal the temporal patterns of settlement, planktonic duration and size-at-settlement (SAS) of young-of-the-year (YOY) of the rockfish Sebastes inermis in a Sargassum bed in Sendai Bay, northern Japan, during 2000 and 2001. Individual growth rates (IGR) during the planktonic period and after settlement for each settled group were also studied and compared to those of YOY collected in a Zostera marina bed. In both years, YOY settled in distinctive groups at new and full moon phases. SAS was surprisingly invariant (21.4-22.7 mm total length) while planktonic duration varied widely (range: 73-123 days), even within settlement groups and between years (mean = 88 days in 2000; mean = 105 days in 2001). In both years, IGR were remarkably lower during the planktonic period (range: 0.09-0.29 mm/d) than after settlement (range: 0.54-0.73 mm/d), demonstrating that Sargassum and Zostera marina beds are important nursery grounds for S. inermis. In conclusion, the analysis of variation in SAS vs planktonic duration along with the selection pressures on settlement size, were the most important driving factors in the settlement dynamics of this rockfish. © 2010 Elsevier B.V. All rights reserved. en_US
dc.source Fisheries Research
Link Descarga dc.source.uri http://www.scopus.com/inward/record.url?eid=2-s2.0-77949774726&partnerID=40&md5=75b3b09dba075b98b88d17757dbf4b45
Title dc.title Daily patterns of settlement and individual growth rates of young-of-the-year of the rockfish Sebastes inermis in a Sargassum bed en_US
Tipo dc.type Article
dc.description.keywords Sargassum; Sebastes inermis; Zostera marina en_US


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