— Information on behavioral variation among sympatric congeneric species is important for understanding the mechanisms that enable their coexistence. The aim of this study was to elucidate the characteristics of diurnal vertical distribution of congeneric Sebastes inermis and S. ventricosus through observations during laboratory experiments in 2011. When 25 individuals of each species were accommodated in a 1-kL tank, S. inermis stayed mainly at the bottom, whereas S. ventricosus actively swam 0–60 cm above the bottom. At various intraspecific densities, S. inermis were similarly distributed at the bottom, S. ventri-cosus were distributed more widely, and the frequency of individuals in the upper layers of water in the tank increased with density. These results indicate that the different behaviors of the 2 species make their coexistence possible without severe competition for microhabitats.
{"title":"Interspecific differences in the vertical distribution patterns of Sebastes inermis and S. ventricosus","authors":"Takaya Kudoh, Anise Midooka, Satoshi Aida, Takeshi Tomiyama","doi":"10.7755/fb.121.3.1","DOIUrl":"https://doi.org/10.7755/fb.121.3.1","url":null,"abstract":"— Information on behavioral variation among sympatric congeneric species is important for understanding the mechanisms that enable their coexistence. The aim of this study was to elucidate the characteristics of diurnal vertical distribution of congeneric Sebastes inermis and S. ventricosus through observations during laboratory experiments in 2011. When 25 individuals of each species were accommodated in a 1-kL tank, S. inermis stayed mainly at the bottom, whereas S. ventricosus actively swam 0–60 cm above the bottom. At various intraspecific densities, S. inermis were similarly distributed at the bottom, S. ventri-cosus were distributed more widely, and the frequency of individuals in the upper layers of water in the tank increased with density. These results indicate that the different behaviors of the 2 species make their coexistence possible without severe competition for microhabitats.","PeriodicalId":50442,"journal":{"name":"Fishery Bulletin","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135718156","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":"Reducing uncertainty in survey abundance estimates by considering alternative designs and estimators: a case study with 3 species in the Gulf of Alaska: suppl. fig. 2","authors":"P. G. von Szalay","doi":"10.7755/fb.121.1-2.5s3","DOIUrl":"https://doi.org/10.7755/fb.121.1-2.5s3","url":null,"abstract":"","PeriodicalId":50442,"journal":{"name":"Fishery Bulletin","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45620386","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":"Reducing uncertainty in survey abundance estimates by considering alternative designs and estimators: a case study with 3 species in the Gulf of Alaska: suppl. table","authors":"Paul G. von Szalay","doi":"10.7755/fb.121.1-2.5s2","DOIUrl":"https://doi.org/10.7755/fb.121.1-2.5s2","url":null,"abstract":"","PeriodicalId":50442,"journal":{"name":"Fishery Bulletin","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135220170","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":"Reducing uncertainty in survey abundance estimates by considering alternative designs and estimators: a case study with 3 species in the Gulf of Alaska: suppl. fig. 1","authors":"Paul G. von Szalay","doi":"10.7755/fb.121.1-2.5s1","DOIUrl":"https://doi.org/10.7755/fb.121.1-2.5s1","url":null,"abstract":"","PeriodicalId":50442,"journal":{"name":"Fishery Bulletin","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135220169","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}
Paul G. von Szalay, Stan Kotwicki, Lewis A. K. Barnett, Lou J. Rugolo, Kotaro Ono
{"title":"Reducing uncertainty in survey abundance estimates by considering alternative designs and estimators: a case study with 3 species in the Gulf of Alaska","authors":"Paul G. von Szalay, Stan Kotwicki, Lewis A. K. Barnett, Lou J. Rugolo, Kotaro Ono","doi":"10.7755/fb.121.1-2.5","DOIUrl":"https://doi.org/10.7755/fb.121.1-2.5","url":null,"abstract":"","PeriodicalId":50442,"journal":{"name":"Fishery Bulletin","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135220333","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}
Michael V. Cyrana, Alexander J. Ledet, Henry L. Bart Jr.
{"title":"Ovarian masculinization and reproductive impairment in 3 species of groundfish in and around the hypoxic zone in the Gulf of Mexico","authors":"Michael V. Cyrana, Alexander J. Ledet, Henry L. Bart Jr.","doi":"10.7755/fb.121.1-2.4","DOIUrl":"https://doi.org/10.7755/fb.121.1-2.4","url":null,"abstract":"","PeriodicalId":50442,"journal":{"name":"Fishery Bulletin","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42943282","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}
— We examined the potential of North American river otters ( Lontra canadensis ) to buffer the expansion of the invasion by green crab ( Carci-nus maenas ) on the West Coast of the United States, documenting the diet of otters from scat remains on the Wa’atch and Tsoo-Yess Rivers, in Washington State, in 2018 and 2019. We tallied hard remains of prey and calculated frequency of occurrence, and we compared predation of the green crab to monthly values of catch per unit of effort for this crab species. North American river otters did not consume green crab in the Tsoo-Yess River and infrequently consumed green crab in the Wa’atch River (1.66% frequency of occurrence), likely because of the lower abundance of the green crab compared to the abundance of other prey in these rivers. Although our results indicate that North American river otters were not a biotic control of green crab, future studies on the population status of the green crab and North American river otter in both rivers and the long-term predator–prey dynamics could help to better gauge the potential for biotic resistance in populations of the green crab.
{"title":"Exploring the biotic resistance of the invasive green crab (Carcinus maenas) by examining the diet of North American river otters (Lontra canadensis): suppl. figure","authors":"Bobbie Buzzell, A. Akmajian, A. Acevedo-Gutiérrez","doi":"10.7755/fb.121.1-2.3s","DOIUrl":"https://doi.org/10.7755/fb.121.1-2.3s","url":null,"abstract":"— We examined the potential of North American river otters ( Lontra canadensis ) to buffer the expansion of the invasion by green crab ( Carci-nus maenas ) on the West Coast of the United States, documenting the diet of otters from scat remains on the Wa’atch and Tsoo-Yess Rivers, in Washington State, in 2018 and 2019. We tallied hard remains of prey and calculated frequency of occurrence, and we compared predation of the green crab to monthly values of catch per unit of effort for this crab species. North American river otters did not consume green crab in the Tsoo-Yess River and infrequently consumed green crab in the Wa’atch River (1.66% frequency of occurrence), likely because of the lower abundance of the green crab compared to the abundance of other prey in these rivers. Although our results indicate that North American river otters were not a biotic control of green crab, future studies on the population status of the green crab and North American river otter in both rivers and the long-term predator–prey dynamics could help to better gauge the potential for biotic resistance in populations of the green crab.","PeriodicalId":50442,"journal":{"name":"Fishery Bulletin","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49616313","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}
Bobbie M. Buzzell, Adrianne M. Akmajian, Alejandro Acevedo-Gutiérrez
{"title":"Exploring the biotic resistance of the invasive green crab (Carcinus maenas) by examining the diet of North American river otters (Lontra canadensis)","authors":"Bobbie M. Buzzell, Adrianne M. Akmajian, Alejandro Acevedo-Gutiérrez","doi":"10.7755/fb.121.1-2.3","DOIUrl":"https://doi.org/10.7755/fb.121.1-2.3","url":null,"abstract":"","PeriodicalId":50442,"journal":{"name":"Fishery Bulletin","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135633718","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":"Juvenile yield and adult abundance, genetic diversity and structure, and linkages among marine habitats for goldlined spinefoot (Siganus guttatus) in the coastal waters of Vietnam","authors":"L. V. Nguyen, D. Mai, Quang M. Thai, T. S. Vo","doi":"10.7755/fb.121.1-2.2","DOIUrl":"https://doi.org/10.7755/fb.121.1-2.2","url":null,"abstract":"","PeriodicalId":50442,"journal":{"name":"Fishery Bulletin","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44740526","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":"Timing and environmental drivers of spawning migrations of alewife (Alosa pseudoharengus) and blueback herring (A. aestivalis) in rivers of Chesapeake Bay: Supplementary figures 1-4","authors":"Henry D. Legett","doi":"10.7755/fb.121.3.4s4","DOIUrl":"https://doi.org/10.7755/fb.121.3.4s4","url":null,"abstract":"","PeriodicalId":50442,"journal":{"name":"Fishery Bulletin","volume":"1 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71238474","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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