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- W2331567239 abstract "MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections MEPS 465:227-242 (2012) - DOI: https://doi.org/10.3354/meps09926 Larvae define spawning habitat of bocaccio rockfish Sebastes paucispinis within and around a large southern California marine reserve Sean M. Hitchman1,3, Nathalie B. Reyns1,*, Andrew R. Thompson2 1Department of Marine Science and Environmental Studies, University of San Diego, San Diego, California 92110, USA 2NOAA Southwest Fisheries Science Center, 8604 La Jolla Shores Drive, La Jolla, California 92037, USA 3Present address: Kansas Cooperative Fish & Wildlife Research Unit, Kansas State University, Manhattan, Kansas 66502, USA *Email: nreyns@sandiego.edu ABSTRACT: Identifying sources of larval production and subsequent dispersal paths is critical for evaluating the efficacy of marine protected areas. We assessed whether the Cowcod Conservation Area (CCA), the largest oceanic reserve in the Southern California Bight (SCB), established to conserve cowcod Sebastes levis, protects essential spawning habitat of another overfished rockfish, bocaccio S. paucispinis. To this end we investigated relationships between age-specific (recently hatched, preflexion and postflexion) larval distribution and abundance, environmental indicators (temperature, chlorophyll a), and depth between 2002 and 2004. Larval presence was consistently higher in the CCA than in surrounding areas of the SCB. Abundances of bocaccio larvae from all size classes peaked in 2004, which had relatively low sea surface temperature and high chlorophyll a. Depth and sea surface temperature or chlorophyll a were significantly related to the presence of recently hatched larvae, which were most common in cooler western CCA waters where chlorophyll a tended to be highest. In contrast, later stage larvae were not significantly related to depth, indicating that they had been advected from natal locations. Examination of current patterns and the distribution of older larvae suggested that the direction of larval transport varied among years, with mostly northwestward transport in 2002, a cyclonic recirculation feature that may have retained larvae within the CCA in 2003, and southwestward transport in 2004. These results demonstrate that spatial and temporal oceanographic heterogeneity affect larval distribution and transport in this region. We conclude that the CCA protects essential bocaccio spawning habitat and is an important source of bocaccio production in the SCB. KEY WORDS: Depth · Essential fish habitat · Larval fish · Marine protected area · Larval production Full text in pdf format Supplementary material PreviousNextCite this article as: Hitchman SM, Reyns NB, Thompson AR (2012) Larvae define spawning habitat of bocaccio rockfish Sebastes paucispinis within and around a large southern California marine reserve. Mar Ecol Prog Ser 465:227-242. https://doi.org/10.3354/meps09926 Export citation RSS - Facebook - Tweet - linkedIn Cited by Published in MEPS Vol. 465. Online publication date: September 28, 2012 Print ISSN: 0171-8630; Online ISSN: 1616-1599 Copyright © 2012 Inter-Research." @default.
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- W2331567239 title "Larvae define spawning habitat of bocaccio rockfish Sebastes paucispinis within and around a large southern California marine reserve" @default.
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