— The distribution and abundance of demersal young of the year (YOY) of rockfish species ( Sebastes spp.) were investigated over a 17-year period along the central coast of California at depths of 19–326 m. More than 87,000 YOY rockfish were counted during surveys of 1292 transects on the seafloor. The 3 most abundant species were the pygmy ( S. wilsoni ), halfbanded ( S. semi-cinctus ), and shortbelly ( S. jordani ) rockfish. Young of the year of many rockfishes were found at greater depths than have been previously reported. The highest densities of all species combined occurred in shallow and intermediate depths ( ≤ 100 m). Most YOY rockfish occupied rock or mixed substrata, except the greenstriped ( S. elongatus ) and stripetail ( S. saxicola ) rockfish, which were associated primarily with soft sub-strata. Statistically significant ( P <0.01) hot spots of YOY rockfish densities were located throughout the region, but only Soquel Canyon, a known refuge for large adult rockfish (>50 cm in total length), was a significant ( P <0.01) cold spot. Biological processes (e.g., ontogenetic movement and predation) and environmental characteristics (e.g., seafloor habitat and oceanographic conditions) are potential influences on the distribution of YOY of rockfishes. The results of our study provide insights into the distributions of YOY of rockfishes in deep, complex sea-floor habitats and can help improve estimation of year-class strength through targeted surveys of preferred habitats.
{"title":"Distribution, abundance, and habitat associations of young of the year of rockfish species (Sebastes spp.) in deep waters along the central coast of California","authors":"Thomas E. Laidig, D. Watters","doi":"10.7755/fb.121.4.5","DOIUrl":"https://doi.org/10.7755/fb.121.4.5","url":null,"abstract":"— The distribution and abundance of demersal young of the year (YOY) of rockfish species ( Sebastes spp.) were investigated over a 17-year period along the central coast of California at depths of 19–326 m. More than 87,000 YOY rockfish were counted during surveys of 1292 transects on the seafloor. The 3 most abundant species were the pygmy ( S. wilsoni ), halfbanded ( S. semi-cinctus ), and shortbelly ( S. jordani ) rockfish. Young of the year of many rockfishes were found at greater depths than have been previously reported. The highest densities of all species combined occurred in shallow and intermediate depths ( ≤ 100 m). Most YOY rockfish occupied rock or mixed substrata, except the greenstriped ( S. elongatus ) and stripetail ( S. saxicola ) rockfish, which were associated primarily with soft sub-strata. Statistically significant ( P <0.01) hot spots of YOY rockfish densities were located throughout the region, but only Soquel Canyon, a known refuge for large adult rockfish (>50 cm in total length), was a significant ( P <0.01) cold spot. Biological processes (e.g., ontogenetic movement and predation) and environmental characteristics (e.g., seafloor habitat and oceanographic conditions) are potential influences on the distribution of YOY of rockfishes. The results of our study provide insights into the distributions of YOY of rockfishes in deep, complex sea-floor habitats and can help improve estimation of year-class strength through targeted surveys of preferred habitats.","PeriodicalId":50442,"journal":{"name":"Fishery Bulletin","volume":"95 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138997901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Benjamin Frey, Vyacheslav Lyubchich, Michelle Zapp Sluis, Nathaniel Miller, David Secor
— In this study, we examined whether otolith microconstituents are deposited seasonally in a manner similar to optical annulus formation and thereby can be used to validate age interpretations. In temperate species, seasonal temperature changes drive the formation of optical annuli, and we hypothesized that they similarly caused oscillations in microconstituent deposition. Using laser ablation inductively coupled plasma mass spectrometry analysis, we tested for periodicity in the deposition of barium (Ba), calcium, copper, magnesium (Mg), manganese (Mn), phosphorus (P), strontium, and zinc in otoliths and compared that periodicity to the periodicity of the annulus zonation (optical opaque and translucent zones). For this investigation of chemical annulus periodicity, we used black sea bass ( Centropristis striata ), a species with yearly optical annulus formation that has been validated
{"title":"Examining the periodicity of annular deposition of otolith microconstituents as a means of age validation","authors":"Benjamin Frey, Vyacheslav Lyubchich, Michelle Zapp Sluis, Nathaniel Miller, David Secor","doi":"10.7755/fb.121.4.4","DOIUrl":"https://doi.org/10.7755/fb.121.4.4","url":null,"abstract":"— In this study, we examined whether otolith microconstituents are deposited seasonally in a manner similar to optical annulus formation and thereby can be used to validate age interpretations. In temperate species, seasonal temperature changes drive the formation of optical annuli, and we hypothesized that they similarly caused oscillations in microconstituent deposition. Using laser ablation inductively coupled plasma mass spectrometry analysis, we tested for periodicity in the deposition of barium (Ba), calcium, copper, magnesium (Mg), manganese (Mn), phosphorus (P), strontium, and zinc in otoliths and compared that periodicity to the periodicity of the annulus zonation (optical opaque and translucent zones). For this investigation of chemical annulus periodicity, we used black sea bass ( Centropristis striata ), a species with yearly optical annulus formation that has been validated","PeriodicalId":50442,"journal":{"name":"Fishery Bulletin","volume":"2020 15","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139001962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Examining the periodicity of annular deposition of otolith microconstituents as a means of age validation: Supplementary table","authors":"Benjamin Frey","doi":"10.7755/fb.121.4.4s","DOIUrl":"https://doi.org/10.7755/fb.121.4.4s","url":null,"abstract":"","PeriodicalId":50442,"journal":{"name":"Fishery Bulletin","volume":"12 6","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138971981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Modeling somatic and otolith growth of the central subpopulation of northern anchovy (Engraulis mordax) by incorporating seasonality: Suppl. table 2","authors":"Brittany D. Schwartzkopf","doi":"10.7755/fb.121.4.3s2","DOIUrl":"https://doi.org/10.7755/fb.121.4.3s2","url":null,"abstract":"","PeriodicalId":50442,"journal":{"name":"Fishery Bulletin","volume":"76 5","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138596157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Brittany D. Schwartzkopf, E. Dorval, D. Porzio, Jonathan M. Walker, Kelsey C. James, Brad E. Erisman
— Somatic growth parameters are used in age-structured stock assessment models, such as those used to assess the federally managed northern anchovy ( Engraulis mordax ); therefore, incorrect estimation of growth can cause errors that affect estimates from stock assessments. To our knowledge, we completed the first comprehensive investigation to model somatic and otolith growth of the central subpopulation of northern anchovy (CSNA), which has a range from Northern California to Baja California, Mexico, by using fishery-dependent and fishery-independent data. Five growth models were fitted to length- at-age data, including 2 models that account for seasonal growth oscillations, to determine the model that best described growth. Seasonal growth oscillations were found for the CSNA
{"title":"Modeling somatic and otolith growth of the central subpopulation of northern anchovy (Engraulis mordax) by incorporating seasonality","authors":"Brittany D. Schwartzkopf, E. Dorval, D. Porzio, Jonathan M. Walker, Kelsey C. James, Brad E. Erisman","doi":"10.7755/fb.121.4.3","DOIUrl":"https://doi.org/10.7755/fb.121.4.3","url":null,"abstract":"— Somatic growth parameters are used in age-structured stock assessment models, such as those used to assess the federally managed northern anchovy ( Engraulis mordax ); therefore, incorrect estimation of growth can cause errors that affect estimates from stock assessments. To our knowledge, we completed the first comprehensive investigation to model somatic and otolith growth of the central subpopulation of northern anchovy (CSNA), which has a range from Northern California to Baja California, Mexico, by using fishery-dependent and fishery-independent data. Five growth models were fitted to length- at-age data, including 2 models that account for seasonal growth oscillations, to determine the model that best described growth. Seasonal growth oscillations were found for the CSNA","PeriodicalId":50442,"journal":{"name":"Fishery Bulletin","volume":"29 5","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138596499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Modeling somatic and otolith growth of the central subpopulation of northern anchovy (Engraulis mordax) by incorporating seasonality: Suppl. table 1","authors":"Brittany D. Schwartzkopf","doi":"10.7755/fb.121.4.3s1","DOIUrl":"https://doi.org/10.7755/fb.121.4.3s1","url":null,"abstract":"","PeriodicalId":50442,"journal":{"name":"Fishery Bulletin","volume":"50 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138595165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Modeling somatic and otolith growth of the central subpopulation of northern anchovy (Engraulis mordax) by incorporating seasonality: Suppl. table 3","authors":"Brittany D. Schwartzkopf","doi":"10.7755/fb.121.4.3s3","DOIUrl":"https://doi.org/10.7755/fb.121.4.3s3","url":null,"abstract":"","PeriodicalId":50442,"journal":{"name":"Fishery Bulletin","volume":"78 2","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138595978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Kahn, Christian H. Hager, D. K. Breault, J. C. Watterson
{"title":"Arrival and departure windows of Atlantic sturgeon in Chesapeake Bay in Virginia","authors":"J. Kahn, Christian H. Hager, D. K. Breault, J. C. Watterson","doi":"10.7755/fb.121.4.2","DOIUrl":"https://doi.org/10.7755/fb.121.4.2","url":null,"abstract":"","PeriodicalId":50442,"journal":{"name":"Fishery Bulletin","volume":"44 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139266935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Distribution of the tiger shark (Galeocerdo cuvier) in the North Atlantic Ocean by season, sex, and life stage, based on tag and recapture data: supp. fig. 3","authors":"Lisa J. Natanson","doi":"10.7755/fb.121.4.1s2","DOIUrl":"https://doi.org/10.7755/fb.121.4.1s2","url":null,"abstract":"","PeriodicalId":50442,"journal":{"name":"Fishery Bulletin","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136212836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Distribution of the tiger shark (Galeocerdo cuvier) in the North Atlantic Ocean by season, sex, and life stage, based on tag and recapture data: supp. figs. 1-2","authors":"Lisa J. Natanson","doi":"10.7755/fb.121.4.1s1","DOIUrl":"https://doi.org/10.7755/fb.121.4.1s1","url":null,"abstract":"","PeriodicalId":50442,"journal":{"name":"Fishery Bulletin","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136212969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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