Pub Date : 2021-09-28DOI: 10.1080/23308249.2021.1972086
M. Adkison
Abstract Management of anadromous salmon stocks is usually based on an estimate of the spawner-recruitment relationship. A wide variety of estimation approaches have been developed, from simple to complex, and some worthwhile methodologies and auxiliary data are underutilized. The types and quality of the data available determine the most appropriate assessment methodology and the reliability of the assessment results. The management strategies available and the performance of these strategies are likewise highly dependent on the available data. This review gives an overview of the range of assessment methodologies, from the ad-hoc to hierarchical Bayesian state-space approaches. It emphasizes the central role of data; data types, data deficiencies, auxiliary information such as environmental indices, habitat characteristics, and similar stocks, and the effects of the data on the quality of guidance to managers.
{"title":"A Review of Salmon Spawner-Recruitment Analysis: The Central Role of the Data and Its Impact on Management Strategy","authors":"M. Adkison","doi":"10.1080/23308249.2021.1972086","DOIUrl":"https://doi.org/10.1080/23308249.2021.1972086","url":null,"abstract":"Abstract Management of anadromous salmon stocks is usually based on an estimate of the spawner-recruitment relationship. A wide variety of estimation approaches have been developed, from simple to complex, and some worthwhile methodologies and auxiliary data are underutilized. The types and quality of the data available determine the most appropriate assessment methodology and the reliability of the assessment results. The management strategies available and the performance of these strategies are likewise highly dependent on the available data. This review gives an overview of the range of assessment methodologies, from the ad-hoc to hierarchical Bayesian state-space approaches. It emphasizes the central role of data; data types, data deficiencies, auxiliary information such as environmental indices, habitat characteristics, and similar stocks, and the effects of the data on the quality of guidance to managers.","PeriodicalId":21183,"journal":{"name":"Reviews in Fisheries Science & Aquaculture","volume":"30 1","pages":"391 - 427"},"PeriodicalIF":11.5,"publicationDate":"2021-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47876355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-09-11DOI: 10.1080/23308249.2021.1968789
A. Stoner, R. Appeldoorn
Abstract The queen conch (Aliger gigas) is a culturally and economically important molluskan fishery resource in the Caribbean region showing increasing signs of over harvest. Shallow-water distribution and large size facilitate capture, and internal fertilization and density-dependent reproduction make managing for reproductive biology critical to stock rehabilitation. In fact, the natural lifetime fecundity of conch is very high but most fisheries in the region harvest conch before even a small fraction of that reproductive potential can be attained. The goal of this review is to provide an up-to-date synthesis of the vast research literature on queen conch biology (spanning >60 years) and to discuss how knowledge of reproduction in conch can help to guide field surveys, fishery management decisions, and stock recovery projects. The review covers the subjects of anatomy, maturation and fecundity as they relate to conch age and size, reproductive behavior including migrations, seasonality, mating, and egg-laying, and the influences of both environmental and demographic variables on reproductive potential. Successes and failures under different forms of management practice are discussed as they relate to reproductive biology and recommendations are made for future research and fishery management alternatives. Successful management will require multiple regulatory approaches.
{"title":"Synthesis of Research on the Reproductive Biology of Queen Conch (Aliger gigas): Toward the Goals of Sustainable Fisheries and Species Conservation","authors":"A. Stoner, R. Appeldoorn","doi":"10.1080/23308249.2021.1968789","DOIUrl":"https://doi.org/10.1080/23308249.2021.1968789","url":null,"abstract":"Abstract The queen conch (Aliger gigas) is a culturally and economically important molluskan fishery resource in the Caribbean region showing increasing signs of over harvest. Shallow-water distribution and large size facilitate capture, and internal fertilization and density-dependent reproduction make managing for reproductive biology critical to stock rehabilitation. In fact, the natural lifetime fecundity of conch is very high but most fisheries in the region harvest conch before even a small fraction of that reproductive potential can be attained. The goal of this review is to provide an up-to-date synthesis of the vast research literature on queen conch biology (spanning >60 years) and to discuss how knowledge of reproduction in conch can help to guide field surveys, fishery management decisions, and stock recovery projects. The review covers the subjects of anatomy, maturation and fecundity as they relate to conch age and size, reproductive behavior including migrations, seasonality, mating, and egg-laying, and the influences of both environmental and demographic variables on reproductive potential. Successes and failures under different forms of management practice are discussed as they relate to reproductive biology and recommendations are made for future research and fishery management alternatives. Successful management will require multiple regulatory approaches.","PeriodicalId":21183,"journal":{"name":"Reviews in Fisheries Science & Aquaculture","volume":"30 1","pages":"346 - 390"},"PeriodicalIF":11.5,"publicationDate":"2021-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44127219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-08-11DOI: 10.1080/23308249.2021.1957772
J. Näslund, L. Jawad
Abstract This review summarizes the current state of knowledge of pugheadedness in fish. Records in the scientific literature range from detailed descriptions to brief notes and mere remarks. In total, at least 164 species from 60 families were identified to exhibit pugheadedness, with records published over a span of 465 years (1555 − 2020). The main osteological feature behind pugheadedness appears to be shortening or deformation of the parasphenoid bone, which leads to additional deformations of the ethmovomer- and frontal region. Several other deformations and abnormalities of other cranial bones, eyes, and tongue are occasionally observed, depending on the severity of the pugheadedness. Possible cases in elasmobranchs are also encountered, although the developmental causation may differ from actinopterygians, since their crania have a different organization. Natural cases of pugheadedness are found world-wide, covering a wide range of environments and lifestyles (freshwater-, brackish- and marine environments; benthic, neritic and pelagic species). Cases are found in all life-stages, from embryo to mature adults, suggesting that it does not necessarily lead to early-life mortality. There is some evidence for natural selection acting against pugheaded individuals, likely because of e.g. inappropriately functioning mouth parts, sense organs, and possibly brain deformation. High numbers of pugheads are mainly found in aquaculture, but moderate numbers have been found at some localities also in the wild. Abnormally high occurrence in the wild is commonly attributed to pollution, non-normal water chemistry parameters, or temperature. The causation, however, it typically speculated upon. Based on the reviewed literature, there is support for several causative factors, including genetic mutation and embryonic environmental conditions (toxic and non-toxic) affecting development. Pugheadedness, as the term has been used in the literature, is not a single well-defined pathology, but rather a suite of pathological conditions with similar phenotypic expression.
{"title":"Pugheadedness in Fishes","authors":"J. Näslund, L. Jawad","doi":"10.1080/23308249.2021.1957772","DOIUrl":"https://doi.org/10.1080/23308249.2021.1957772","url":null,"abstract":"Abstract This review summarizes the current state of knowledge of pugheadedness in fish. Records in the scientific literature range from detailed descriptions to brief notes and mere remarks. In total, at least 164 species from 60 families were identified to exhibit pugheadedness, with records published over a span of 465 years (1555 − 2020). The main osteological feature behind pugheadedness appears to be shortening or deformation of the parasphenoid bone, which leads to additional deformations of the ethmovomer- and frontal region. Several other deformations and abnormalities of other cranial bones, eyes, and tongue are occasionally observed, depending on the severity of the pugheadedness. Possible cases in elasmobranchs are also encountered, although the developmental causation may differ from actinopterygians, since their crania have a different organization. Natural cases of pugheadedness are found world-wide, covering a wide range of environments and lifestyles (freshwater-, brackish- and marine environments; benthic, neritic and pelagic species). Cases are found in all life-stages, from embryo to mature adults, suggesting that it does not necessarily lead to early-life mortality. There is some evidence for natural selection acting against pugheaded individuals, likely because of e.g. inappropriately functioning mouth parts, sense organs, and possibly brain deformation. High numbers of pugheads are mainly found in aquaculture, but moderate numbers have been found at some localities also in the wild. Abnormally high occurrence in the wild is commonly attributed to pollution, non-normal water chemistry parameters, or temperature. The causation, however, it typically speculated upon. Based on the reviewed literature, there is support for several causative factors, including genetic mutation and embryonic environmental conditions (toxic and non-toxic) affecting development. Pugheadedness, as the term has been used in the literature, is not a single well-defined pathology, but rather a suite of pathological conditions with similar phenotypic expression.","PeriodicalId":21183,"journal":{"name":"Reviews in Fisheries Science & Aquaculture","volume":"30 1","pages":"306 - 329"},"PeriodicalIF":11.5,"publicationDate":"2021-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46246635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-08-06DOI: 10.1080/23308249.2021.1961679
E. Avigliano
Abstract The otolith chemistry is one of the most commonly used tools to elucidate the structure of fish stocks. The correct application of this methodology depends on the fulfillment of several assumptions. One of the most relevant assumptions is that the otoliths and water chemistries vary at appropriate spatio-temporal scale in relation to the hypotheses being addressed. Due to the increase in the number of publications where this assumption is not properly considered, it is essential to discuss and order different concepts to contribute to the correct interpretation of the information provided by the otolith chemistry applied to the delimitation of stocks. Herein, the opportunity for dispersal concepts in otolith chemistry-based stock discrimination methods is discussed integrating the space-time scales, and biogeographic foundations. Additionally, a graphic guide was developed to facilitate hypothesis testing and their respective interpretations. This article encourages further use and attention on age and growth data, dispersal ability and life history, but further integration of the issue of biology versus management, as well as how the integration of other approaches may assist, is recommended, as most likely there will be no single approach to resolve stock structure.
{"title":"Optimizing the Methodological Design in Fish Stock Delineation from Otolith Chemistry: Review of Spatio-Temporal Analysis Scales","authors":"E. Avigliano","doi":"10.1080/23308249.2021.1961679","DOIUrl":"https://doi.org/10.1080/23308249.2021.1961679","url":null,"abstract":"Abstract The otolith chemistry is one of the most commonly used tools to elucidate the structure of fish stocks. The correct application of this methodology depends on the fulfillment of several assumptions. One of the most relevant assumptions is that the otoliths and water chemistries vary at appropriate spatio-temporal scale in relation to the hypotheses being addressed. Due to the increase in the number of publications where this assumption is not properly considered, it is essential to discuss and order different concepts to contribute to the correct interpretation of the information provided by the otolith chemistry applied to the delimitation of stocks. Herein, the opportunity for dispersal concepts in otolith chemistry-based stock discrimination methods is discussed integrating the space-time scales, and biogeographic foundations. Additionally, a graphic guide was developed to facilitate hypothesis testing and their respective interpretations. This article encourages further use and attention on age and growth data, dispersal ability and life history, but further integration of the issue of biology versus management, as well as how the integration of other approaches may assist, is recommended, as most likely there will be no single approach to resolve stock structure.","PeriodicalId":21183,"journal":{"name":"Reviews in Fisheries Science & Aquaculture","volume":"30 1","pages":"330 - 345"},"PeriodicalIF":11.5,"publicationDate":"2021-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/23308249.2021.1961679","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48832411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-22DOI: 10.1080/23308249.2021.1948502
N. Shackell, J. Fisher, Cornelia E. den Heyer, D. Hennen, A. Seitz, A. Le Bris, D. Robert, M. Kersula, S. Cadrin, R. McBride, Christopher H. McGuire, T. Kess, K. Ransier, Chang Liu, Andrew Czich, K. Frank
Abstract Interactions between spatial dynamics and stock structure in marine fishes have largely focused on stocks in decline; stock structure is rarely re-visited for expanding species. Here, the spatial ecology of Atlantic halibut (Hippoglossus hippoglossus L.), managed as four stocks in the Northwest Atlantic, is reviewed. Halibut collapsed under high exploitation in the mid-19th century, but the Canadian fisheries value has increased seven-fold since the early 2000s. Atlantic halibut’s thermal habitat has increased due to warming, possibly contributing to its expansion. Genomic evidence differentiates two populations in the four management units, whereas there is non-genetic spatial structure within each of the stock boundaries. There are different core juvenile areas and a diversity of spawning migration patterns influenced by timing, fish size, maturity state, and distance between summer-feeding and over-wintering habitats. From tagging studies, multiple estimates of median distance at recapture (⁓3-90 km) are much less than the spatial domain of each stock. Growth rates are faster in the warmer south, as predicted by growing degree day. The current perspective of Atlantic halibut spatial structure is that there are two distinct populations, and within each, there are subpopulations composed of multiple migratory contingents. The level of mixing on common spawning grounds both among and within subpopulations is only partly understood.
{"title":"Spatial Ecology of Atlantic Halibut across the Northwest Atlantic: A Recovering Species in an Era of Climate Change","authors":"N. Shackell, J. Fisher, Cornelia E. den Heyer, D. Hennen, A. Seitz, A. Le Bris, D. Robert, M. Kersula, S. Cadrin, R. McBride, Christopher H. McGuire, T. Kess, K. Ransier, Chang Liu, Andrew Czich, K. Frank","doi":"10.1080/23308249.2021.1948502","DOIUrl":"https://doi.org/10.1080/23308249.2021.1948502","url":null,"abstract":"Abstract Interactions between spatial dynamics and stock structure in marine fishes have largely focused on stocks in decline; stock structure is rarely re-visited for expanding species. Here, the spatial ecology of Atlantic halibut (Hippoglossus hippoglossus L.), managed as four stocks in the Northwest Atlantic, is reviewed. Halibut collapsed under high exploitation in the mid-19th century, but the Canadian fisheries value has increased seven-fold since the early 2000s. Atlantic halibut’s thermal habitat has increased due to warming, possibly contributing to its expansion. Genomic evidence differentiates two populations in the four management units, whereas there is non-genetic spatial structure within each of the stock boundaries. There are different core juvenile areas and a diversity of spawning migration patterns influenced by timing, fish size, maturity state, and distance between summer-feeding and over-wintering habitats. From tagging studies, multiple estimates of median distance at recapture (⁓3-90 km) are much less than the spatial domain of each stock. Growth rates are faster in the warmer south, as predicted by growing degree day. The current perspective of Atlantic halibut spatial structure is that there are two distinct populations, and within each, there are subpopulations composed of multiple migratory contingents. The level of mixing on common spawning grounds both among and within subpopulations is only partly understood.","PeriodicalId":21183,"journal":{"name":"Reviews in Fisheries Science & Aquaculture","volume":"30 1","pages":"281 - 305"},"PeriodicalIF":11.5,"publicationDate":"2021-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/23308249.2021.1948502","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49634649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-12DOI: 10.1080/23308249.2021.1946481
D. Love, F. Asche, R. Young, E. Nussbaumer, James L. Anderson, R. Botta, Zach Conrad, H. Froehlich, T. Garlock, Jessica A. Gephart, Andrew Ropicki, Joshua S. Stoll, A. Thorne-Lyman
Abstract While a large number of studies have investigated seafood consumption in various markets, surprisingly little is known about the types of seafood sold in retail outlets or their product forms in the USA. This is particularly true for fresh seafood, which is generally regarded as the most valuable product form of seafood. In this article, a unique dataset on retail in-store seafood sales that includes information about three main product forms (fresh, frozen, and shelf-stable products) was analyzed. Fresh seafood is important, as it makes up 43% of sales revenue. Moreover, some species are almost exclusively sold fresh, with trout and lobster as prime examples. Fresh also includes the greatest diversity of species and, as such, is the most likely product form for new producers to succeed. National sales are dominated by a few species, with salmon and shrimp accounting for a large portion of the fresh (27%) and frozen categories (43%), respectively, and tuna dominating the shelf-stable category (75%). There are also a large number of species with mostly small market shares. There are few differences in regional sales patterns for the main species, with notable exceptions such as whitefish in New England and crawfish in Louisiana and Texas. The degree of urbanization and income level appears as the important drivers for seafood sales. Supplemental data for this article is available online at https://doi.org/10.1080/23308249.2021.1946481
{"title":"An Overview of Retail Sales of Seafood in the USA, 2017–2019","authors":"D. Love, F. Asche, R. Young, E. Nussbaumer, James L. Anderson, R. Botta, Zach Conrad, H. Froehlich, T. Garlock, Jessica A. Gephart, Andrew Ropicki, Joshua S. Stoll, A. Thorne-Lyman","doi":"10.1080/23308249.2021.1946481","DOIUrl":"https://doi.org/10.1080/23308249.2021.1946481","url":null,"abstract":"Abstract While a large number of studies have investigated seafood consumption in various markets, surprisingly little is known about the types of seafood sold in retail outlets or their product forms in the USA. This is particularly true for fresh seafood, which is generally regarded as the most valuable product form of seafood. In this article, a unique dataset on retail in-store seafood sales that includes information about three main product forms (fresh, frozen, and shelf-stable products) was analyzed. Fresh seafood is important, as it makes up 43% of sales revenue. Moreover, some species are almost exclusively sold fresh, with trout and lobster as prime examples. Fresh also includes the greatest diversity of species and, as such, is the most likely product form for new producers to succeed. National sales are dominated by a few species, with salmon and shrimp accounting for a large portion of the fresh (27%) and frozen categories (43%), respectively, and tuna dominating the shelf-stable category (75%). There are also a large number of species with mostly small market shares. There are few differences in regional sales patterns for the main species, with notable exceptions such as whitefish in New England and crawfish in Louisiana and Texas. The degree of urbanization and income level appears as the important drivers for seafood sales. Supplemental data for this article is available online at https://doi.org/10.1080/23308249.2021.1946481","PeriodicalId":21183,"journal":{"name":"Reviews in Fisheries Science & Aquaculture","volume":"30 1","pages":"259 - 270"},"PeriodicalIF":11.5,"publicationDate":"2021-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/23308249.2021.1946481","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48992028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-01DOI: 10.1080/23308249.2021.1937044
M. Dadswell, A. Spares, J. Reader, M. Mclean, T. Mcdermott, K. Samways, Jessie Lilly
Abstract Adult returns to many Atlantic salmon wild and hatchery stocks of the North Atlantic have declined or collapsed since 1985. Enhancement, commercial fishery closures, and angling restrictions have failed to halt the decline. Human impacts such as dams, pollution or marine overexploitation were responsible for some stock declines in the past, but adult returns to river and hatchery stocks with no obvious local impacts have also declined or collapsed since 1985. Multiple studies have postulated that the recent widespread occurrence of low adult returns may be caused by climate change, salmon farming, food availability at sea, or marine predators but these possibilities are unsupported by stocks that persist near historic levels, loss of stocks remote from farm sites, a diverse marine prey field, and scarcity of large offshore predators. The decline and collapse of stocks has common characteristics: 1) cyclic annual adult returns cease, 2) annual adult returns flatline, 3) adult mean size declines, and 4) stock collapses occurred earliest among watersheds distant from the North Atlantic Sub-polar Gyre (NASpG). Cyclic annual adult returns were common to all stocks in the past that were not impacted by anthropogenic changes to their natal streams. A flatline of adult abundance and reduction in adult mean size are common characteristics of many overexploited fish stocks and suggest illegal, unreported, and unregulated (IUU) fisheries exploitation at sea. Distance from the NASpG causing higher mortality of migrating post-smolts would increase the potential for collapse of these stocks from IUU exploitation. By-catch of post-smolts and adults in paired-trawl fisheries off Europe and intercept adult fisheries off Greenland, in the Gulf of St. Lawrence, and off Europe have been sources of marine mortality but seem unlikely to be the primary cause of the decline. Distribution in time and space of former, legal high-sea fisheries indicated fishers were well acquainted with the ocean migratory pattern of salmon and combined with lack of surveillance since 1985 outside Exclusive Economic Zones or in remote northern regions may mean high at-sea mortality occurs because of IUU fisheries. The problem of IUU ocean fisheries is acute, has collapsed numerous stocks of desired species worldwide, and is probably linked to the decline and impending collapse of the North Atlantic salmon population.
{"title":"The Decline and Impending Collapse of the Atlantic Salmon (Salmo salar) Population in the North Atlantic Ocean: A Review of Possible Causes","authors":"M. Dadswell, A. Spares, J. Reader, M. Mclean, T. Mcdermott, K. Samways, Jessie Lilly","doi":"10.1080/23308249.2021.1937044","DOIUrl":"https://doi.org/10.1080/23308249.2021.1937044","url":null,"abstract":"Abstract Adult returns to many Atlantic salmon wild and hatchery stocks of the North Atlantic have declined or collapsed since 1985. Enhancement, commercial fishery closures, and angling restrictions have failed to halt the decline. Human impacts such as dams, pollution or marine overexploitation were responsible for some stock declines in the past, but adult returns to river and hatchery stocks with no obvious local impacts have also declined or collapsed since 1985. Multiple studies have postulated that the recent widespread occurrence of low adult returns may be caused by climate change, salmon farming, food availability at sea, or marine predators but these possibilities are unsupported by stocks that persist near historic levels, loss of stocks remote from farm sites, a diverse marine prey field, and scarcity of large offshore predators. The decline and collapse of stocks has common characteristics: 1) cyclic annual adult returns cease, 2) annual adult returns flatline, 3) adult mean size declines, and 4) stock collapses occurred earliest among watersheds distant from the North Atlantic Sub-polar Gyre (NASpG). Cyclic annual adult returns were common to all stocks in the past that were not impacted by anthropogenic changes to their natal streams. A flatline of adult abundance and reduction in adult mean size are common characteristics of many overexploited fish stocks and suggest illegal, unreported, and unregulated (IUU) fisheries exploitation at sea. Distance from the NASpG causing higher mortality of migrating post-smolts would increase the potential for collapse of these stocks from IUU exploitation. By-catch of post-smolts and adults in paired-trawl fisheries off Europe and intercept adult fisheries off Greenland, in the Gulf of St. Lawrence, and off Europe have been sources of marine mortality but seem unlikely to be the primary cause of the decline. Distribution in time and space of former, legal high-sea fisheries indicated fishers were well acquainted with the ocean migratory pattern of salmon and combined with lack of surveillance since 1985 outside Exclusive Economic Zones or in remote northern regions may mean high at-sea mortality occurs because of IUU fisheries. The problem of IUU ocean fisheries is acute, has collapsed numerous stocks of desired species worldwide, and is probably linked to the decline and impending collapse of the North Atlantic salmon population.","PeriodicalId":21183,"journal":{"name":"Reviews in Fisheries Science & Aquaculture","volume":"30 1","pages":"215 - 258"},"PeriodicalIF":11.5,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46496240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-05-20DOI: 10.1080/23308249.2021.1924617
D. Secor, M. O’Brien, N. Coleman, A. Horne, I. Park, D. Kazyak, D. Bruce, C. Stence
Abstract Biotelemetry of Atlantic sturgeon Acipenser oxyrinchus oxyrinchus has exposed spawning behaviors in ever-smaller estuaries, surprising for the NW Atlantic’s largest anadromous species. Small estuary — the Nanticoke River and Marshyhope Creek (Chesapeake Bay) — spawning-run adults and their habitat affinities are described based upon direct sampling and biotelemetry for the period 2014–2018. High rates of recapture over this period indicate a very small adult population size. Genetics revealed a very small effective population size (N e = 12.2, 95% CI = 6.7–21.9). Most returns occurred during September at 20–27 °C. All fish departed as fall temperatures declined below 20 °C. Multi-beam sonar identified small-dispersed areas of sand-cobble and cobble, which could support adhesive embryo attachment. Movements of adults were higher during nighttime than daytime, with habitat preference for hard bottom habitats. Genetic evidence indicates that the sudden discovery of this population was unrelated to a hatchery release of several thousand juvenile sturgeon (Hudson River progeny) in 1997. The newly discovered population in the Nanticoke River exhibits a degree of resilience including multiple spawning regions and suitable spawning habitat. Still, critical vulnerabilities persist including curtailed habitat, continued agricultural and maritime development, invasive blue catfish, and a very small apparent population size. Supplemental data for this article is available online at https://doi.org/10.1080/23308249.2021.1924617
{"title":"Atlantic Sturgeon Status and Movement Ecology in an Extremely Small Spawning Habitat: The Nanticoke River-Marshyhope Creek, Chesapeake Bay","authors":"D. Secor, M. O’Brien, N. Coleman, A. Horne, I. Park, D. Kazyak, D. Bruce, C. Stence","doi":"10.1080/23308249.2021.1924617","DOIUrl":"https://doi.org/10.1080/23308249.2021.1924617","url":null,"abstract":"Abstract Biotelemetry of Atlantic sturgeon Acipenser oxyrinchus oxyrinchus has exposed spawning behaviors in ever-smaller estuaries, surprising for the NW Atlantic’s largest anadromous species. Small estuary — the Nanticoke River and Marshyhope Creek (Chesapeake Bay) — spawning-run adults and their habitat affinities are described based upon direct sampling and biotelemetry for the period 2014–2018. High rates of recapture over this period indicate a very small adult population size. Genetics revealed a very small effective population size (N e = 12.2, 95% CI = 6.7–21.9). Most returns occurred during September at 20–27 °C. All fish departed as fall temperatures declined below 20 °C. Multi-beam sonar identified small-dispersed areas of sand-cobble and cobble, which could support adhesive embryo attachment. Movements of adults were higher during nighttime than daytime, with habitat preference for hard bottom habitats. Genetic evidence indicates that the sudden discovery of this population was unrelated to a hatchery release of several thousand juvenile sturgeon (Hudson River progeny) in 1997. The newly discovered population in the Nanticoke River exhibits a degree of resilience including multiple spawning regions and suitable spawning habitat. Still, critical vulnerabilities persist including curtailed habitat, continued agricultural and maritime development, invasive blue catfish, and a very small apparent population size. Supplemental data for this article is available online at https://doi.org/10.1080/23308249.2021.1924617","PeriodicalId":21183,"journal":{"name":"Reviews in Fisheries Science & Aquaculture","volume":"30 1","pages":"195 - 214"},"PeriodicalIF":11.5,"publicationDate":"2021-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/23308249.2021.1924617","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48088269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-04-05DOI: 10.1080/23308249.2021.1906843
Bin Kang, Xiaoxia Huang
Abstract The Mekong, the largest river in Southeast Asia, is of fundamental cultural, ecological, and economic importance to the entire Mekong region. It supports the highest fish diversity after the Amazon and the largest inland fishery in the world and is at serious threats of intensifying environmental disaster and human activities. Mismatched the high attention worldwide, few related studies were concerning fishes in the whole basin. In this paper, 899 freshwater fish species were recorded, which could be grouped into 9 biogeographical regions based on their distribution information; each region owed its unique fauna with different dominance/or endemism at the genus level. The species richness was positively related to temperature, precipitation, and longitude, but negatively to latitude and slope. Seven migratory systems were deduced from spatial distribution information of 321 migratory species, and these systems were separate but not independent. Mekong fisheries were highly diversified with an estimation of a maximum worth of around $17 billion. Fisheries played an irreplaceable role in Cambodia, and aquaculture was of growing importance in the Delta and the Upper Mekong. Cascade dams, as well as climate change, overfishing, aquaculture, and pollution, posed threats to fish diversity and resources by habitat homogenization, migratory channel blockage, parents population decline, and diseases. Integrated management, a combination of capture and aquaculture fisheries, and collaboration among scientists, fishermen, and the public were advocated to address the issues facing Mekong fishes.
{"title":"Mekong Fishes: Biogeography, Migration, Resources, Threats, and Conservation","authors":"Bin Kang, Xiaoxia Huang","doi":"10.1080/23308249.2021.1906843","DOIUrl":"https://doi.org/10.1080/23308249.2021.1906843","url":null,"abstract":"Abstract The Mekong, the largest river in Southeast Asia, is of fundamental cultural, ecological, and economic importance to the entire Mekong region. It supports the highest fish diversity after the Amazon and the largest inland fishery in the world and is at serious threats of intensifying environmental disaster and human activities. Mismatched the high attention worldwide, few related studies were concerning fishes in the whole basin. In this paper, 899 freshwater fish species were recorded, which could be grouped into 9 biogeographical regions based on their distribution information; each region owed its unique fauna with different dominance/or endemism at the genus level. The species richness was positively related to temperature, precipitation, and longitude, but negatively to latitude and slope. Seven migratory systems were deduced from spatial distribution information of 321 migratory species, and these systems were separate but not independent. Mekong fisheries were highly diversified with an estimation of a maximum worth of around $17 billion. Fisheries played an irreplaceable role in Cambodia, and aquaculture was of growing importance in the Delta and the Upper Mekong. Cascade dams, as well as climate change, overfishing, aquaculture, and pollution, posed threats to fish diversity and resources by habitat homogenization, migratory channel blockage, parents population decline, and diseases. Integrated management, a combination of capture and aquaculture fisheries, and collaboration among scientists, fishermen, and the public were advocated to address the issues facing Mekong fishes.","PeriodicalId":21183,"journal":{"name":"Reviews in Fisheries Science & Aquaculture","volume":"30 1","pages":"170 - 194"},"PeriodicalIF":11.5,"publicationDate":"2021-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/23308249.2021.1906843","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49398521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-03-22DOI: 10.1080/23308249.2021.1898538
M. A. P. Falcão, M. C. Dantas, C. Rios, L. Borges, M. Serafini, A. Guimarães, C. B. Walker
Abstract Danio rerio (zebrafish) is a suitable animal model that has been used to model a wide range of diseases such as aquaculture-relevant infectious agents and inflammatory processes. This study reviewed methods employed to study inflammation in zebrafish to reveal its usefulness in modeling inflammation. PubMed, Scopus, Web of Science, and Lilacs databases were searched for original research articles published until February 18, 2020, using the keywords “inflammation” AND “zebrafish.” Of the 3001 articles identified, 60 were included in this study. These included articles that compiled the methods used to induce inflammation with the most frequently used methodologies being tail fin injury and immersion in inflammatory solution. Moreover, the effectiveness of the methodology was confirmed by the increase in inflammatory cells (macrophages and neutrophils), enhanced levels of cytokines (TNF-α, IL-1β, IL-6, and IL-8), and chemokines (CXCL18-l1). These results confirmed that inflammatory processes in zebrafish are similar to those in other animal species, such as catfish (Ictalurus punctatus) and mammals. Therefore, zebrafish can be used to screen new anti-inflammatory agents and elucidate the pathway and pathology of inflammation, which can also be translated to other fishes and help to prevent fish diseases, resulting in a positive impact on the aquaculture economy.
摘要斑马鱼（Danio rerio，斑马鱼）是一种合适的动物模型，已被用于模拟各种疾病，如水产养殖相关的传染源和炎症过程。本研究综述了用于研究斑马鱼炎症的方法，以揭示其在炎症建模中的有用性。PubMed、Scopus、Web of Science和Lilacs数据库使用关键词“炎症”和“斑马鱼”搜索了截至2020年2月18日发表的原始研究文章。在确定的3001篇文章中，有60篇包含在本研究中。其中包括汇编用于诱导炎症的方法的文章，最常用的方法是尾鳍损伤和浸泡在炎症溶液中。此外，炎症细胞（巨噬细胞和中性粒细胞）的增加、细胞因子（TNF-α、IL-1β、IL-6和IL-8）和趋化因子（CXCL18-l1）水平的提高证实了该方法的有效性。这些结果证实，斑马鱼的炎症过程与其他动物物种的炎症过程相似，如鲶鱼和哺乳动物。因此，斑马鱼可以用于筛选新的抗炎剂，阐明炎症的途径和病理，也可以转化为其他鱼类，有助于预防鱼类疾病，对水产养殖经济产生积极影响。
{"title":"Zebrafish as a Tool for Studying Inflammation: A Systematic Review","authors":"M. A. P. Falcão, M. C. Dantas, C. Rios, L. Borges, M. Serafini, A. Guimarães, C. B. Walker","doi":"10.1080/23308249.2021.1898538","DOIUrl":"https://doi.org/10.1080/23308249.2021.1898538","url":null,"abstract":"Abstract Danio rerio (zebrafish) is a suitable animal model that has been used to model a wide range of diseases such as aquaculture-relevant infectious agents and inflammatory processes. This study reviewed methods employed to study inflammation in zebrafish to reveal its usefulness in modeling inflammation. PubMed, Scopus, Web of Science, and Lilacs databases were searched for original research articles published until February 18, 2020, using the keywords “inflammation” AND “zebrafish.” Of the 3001 articles identified, 60 were included in this study. These included articles that compiled the methods used to induce inflammation with the most frequently used methodologies being tail fin injury and immersion in inflammatory solution. Moreover, the effectiveness of the methodology was confirmed by the increase in inflammatory cells (macrophages and neutrophils), enhanced levels of cytokines (TNF-α, IL-1β, IL-6, and IL-8), and chemokines (CXCL18-l1). These results confirmed that inflammatory processes in zebrafish are similar to those in other animal species, such as catfish (Ictalurus punctatus) and mammals. Therefore, zebrafish can be used to screen new anti-inflammatory agents and elucidate the pathway and pathology of inflammation, which can also be translated to other fishes and help to prevent fish diseases, resulting in a positive impact on the aquaculture economy.","PeriodicalId":21183,"journal":{"name":"Reviews in Fisheries Science & Aquaculture","volume":"30 1","pages":"101 - 122"},"PeriodicalIF":11.5,"publicationDate":"2021-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/23308249.2021.1898538","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49541567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：