caa a22 4500 606226893 CHVBK 20210128101155.0 cr unu---uuuuu 210128e20150101xx s 000 0 eng 10.1007/s10641-014-0238-7 doi (NATIONALLICENCE)springer-10.1007/s10641-014-0238-7 Variability in rockfish ( Sebastes spp.) fecundity: species contrasts, maternal size effects, and spatial differences [Elektronische Daten] [Sabrina Beyer, Susan Sogard, Chris Harvey, John Field] Over 60 species of rockfish (Sebastes spp.) reside off the coast of California, many of which are economically important to both recreational and commercial fisheries. Rockfish are live-bearers with a diverse array of reproductive strategies. Understanding the reproductive potential of an exploited stock is critical to assessing the health and status of a fishery. We investigated the reproductive ecology of four rockfish species to examine species contrasts and to determine spatial and maternal-size effects on reproductive potential. Females were sampled during the winter parturition season (November through March) of 2009 through 2012. Maternal length and somatic weight were positively correlated with relative fecundity (larvae per g somatic weight) in all four species, indicating a disproportionately greater reproductive output by larger, older females. Fecundity estimates in Chilipepper, S. goodei, and Yellowtail rockfish, S. flavidus, varied regionally, but did not significantly differ over time within the years sampled (sample sizes for Speckled, S. ovalis, and Blackgill rockfish, S. melanostomus, were too small to allow spatiotemporal comparisons). Two reproductive strategies were evident as Yellowtail and Blackgill rockfish produced a relatively highly fecund, single brood of smaller-sized larvae annually, in contrast to Chilipepper and Speckled rockfish, which produced larger-sized larvae with lower fecundity. In some regions multiple broods were common, complicating estimates of annual fecundity for these two species. There was some evidence that egg production was positively correlated with female condition, indicating that environmental variability in oceanographic conditions and productivity may drive changes in fecundity and reproductive strategy (i.e., single versus multiple broods). Springer Science+Business Media Dordrecht, 2014 Sebastes spp nationallicence Fecundity nationallicence Maternal size nationallicence Spatial effects nationallicence Multiple broods nationallicence Beyer Sabrina Fisheries Ecology Division, Southwest Fisheries Science Center, National Marine Fisheries Service, NOAA, 110 Shaffer Rd, 95060, Santa Cruz, CA, USA aut Sogard Susan Fisheries Ecology Division, Southwest Fisheries Science Center, National Marine Fisheries Service, NOAA, 110 Shaffer Rd, 95060, Santa Cruz, CA, USA aut Harvey Chris Northwest Fisheries Science Center, National Marine Fisheries Service, NOAA, 2725 Montlake Blvd. East, 98112, Seattle, WA, USA aut Field John Fisheries Ecology Division, Southwest Fisheries Science Center, National Marine Fisheries Service, NOAA, 110 Shaffer Rd, 95060, Santa Cruz, CA, USA aut Environmental Biology of Fishes Springer Netherlands 98/1(2015-01-01), 81-100 0378-1909 98:1<81 2015 98 10641 https://doi.org/10.1007/s10641-014-0238-7 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10641-014-0238-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Beyer Sabrina Fisheries Ecology Division, Southwest Fisheries Science Center, National Marine Fisheries Service, NOAA, 110 Shaffer Rd, 95060, Santa Cruz, CA, USA aut NATIONALLICENCE 700 1- Sogard Susan Fisheries Ecology Division, Southwest Fisheries Science Center, National Marine Fisheries Service, NOAA, 110 Shaffer Rd, 95060, Santa Cruz, CA, USA aut NATIONALLICENCE 700 1- Harvey Chris Northwest Fisheries Science Center, National Marine Fisheries Service, NOAA, 2725 Montlake Blvd. East, 98112, Seattle, WA, USA aut NATIONALLICENCE 700 1- Field John Fisheries Ecology Division, Southwest Fisheries Science Center, National Marine Fisheries Service, NOAA, 110 Shaffer Rd, 95060, Santa Cruz, CA, USA aut NATIONALLICENCE 773 0- Environmental Biology of Fishes Springer Netherlands 98/1(2015-01-01), 81-100 0378-1909 98:1<81 2015 98 10641