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Ontogeny of critical swimming speeds for larval and pelagic juvenile rockfishes (Sebastes spp., family Scorpaenidae)

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dc.contributor Australian Institute Of Marine Science
dc.contributor Moss Landing Marine Labs
dc.contributor University Of California Davis
dc.contributor National Oceanic Atmospheric Admin (noaa) - Usa
dc.contributor Natl Marine Fisheries Serv
dc.contributor University Of Western Australia
dc.contributor University Of California System
dc.contributor Southwest Fisheries Sci Ctr
dc.contributor Moss Landing Marine Laboratories
dc.contributor Australian Inst Marine Sci
dc.contributor Univ Calif Davis
dc.contributor Bodega Marine Lab
dc.contributor Uwa Oceans Inst LARGIER, JOHN L. KASHEF, NEOSHA S. SOGARD, SUSAN M. FISHER, REBECCA 2017-03-21T00:56:05Z 2015-03-25T04:30:22Z 2017-03-21T00:56:05Z 2019-07-08T02:15:13Z 2017-03-21T00:56:05Z 2017-03-21T00:56:05Z 2015-03-25T04:30:22Z 2019-07-08T02:15:13Z 2014-01-01
dc.identifier.citation Kashef NS, Sogard SM, Fisher R, Largier JL (2014) Ontogeny of critical swimming speeds for larval and pelagic juvenile rockfishes (Sebastes spp., family Scorpaenidae). Marine Ecology Progress Series 500: 231-243 en_US
dc.identifier.issn 0171-8630
dc.description.abstract Understanding the mechanisms that affect larval dispersal is critical to management of marine populations. Rockfishes Sebastes spp. do not settle to benthic habitats immediately after metamorphosis, but instead remain in the water column for weeks to months. Movements of larvae and pelagic juveniles during their months at sea are largely unknown. It is traditionally thought that young rockfishes are planktonic, moving at the mercy of ocean currents, but this assumption is unverified. In this study, swimming capabilities (critical speed) of larval and pelagic juvenile stages of 6 rockfish species (blue [S. mystinus], yellowtail [S. flavidus], brown [S. auriculatus], kelp [S. atrovirens], gopher [S. carnatus], and splitnose [S. diploproa]) were evaluated to determine their ability to behaviorally influence dispersal. Rockfish larvae have critical speeds of 0.5 to 1.8 cm s(-1) (1 to 3 body lengths per second [bl s(-1)]) at parturition, whereas newly settled juveniles are capable of swimming 8.6 to 53.5 cm s(-1) (5 to 9 bl s(-1)). Swimming ability increases throughout ontogeny and postflexion rockfishes can swim faster than typical water motions in their natural habitat (i.e. mean ocean currents off central California). Critical speeds for Sebastes spp. are substantially lower than those for larvae and juveniles of tropical species at similar body sizes. Rockfishes, however, have swimming speeds at settlement comparable to some tropical species, as rockfishes settle at larger sizes. The increasing ability of rockfishes to outswim currents during their pelagic phase (acting as nekton rather than plankton) may promote individual survival as well as enhance retention and/or long-distance dispersal-thus swimming has important implications for population connectivity and sustainability.
dc.description.uri en_US
dc.language English
dc.language.iso en en_US
dc.publisher Inter-Research en_US
dc.relation.ispartof Null
dc.subject Northern California
dc.subject Central California
dc.subject Ecology
dc.subject Genus Sebastes
dc.subject Larvae
dc.subject Environmental Sciences & Ecology
dc.subject Upwelling Region
dc.subject Demersal Fishes
dc.subject Marine & Freshwater Biology
dc.subject Swimming
dc.subject Monterey Bay
dc.subject Depth Distributions
dc.subject Vertical-distribution
dc.subject Oceanography
dc.subject Early-life-history
dc.subject Dispersal
dc.subject Reef Fish Larvae
dc.subject Sebastes Spp.
dc.subject Rockfish
dc.title Ontogeny of critical swimming speeds for larval and pelagic juvenile rockfishes (Sebastes spp., family Scorpaenidae)
dc.type journal article en_US
dc.identifier.doi 10.3354/meps10669
dc.identifier.wos WOS:000332900300017

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