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Sturgeon Chub (Macrhybopsis Gelida): a Technical Conservation Assessment
Sturgeon Chub (Macrhybopsis gelida): A Technical Conservation Assessment Prepared for the USDA Forest Service, Rocky Mountain Region, Species Conservation Project August 31, 2004 Frank J. Rahel and Laura A. Thel Department of Zoology and Physiology University of Wyoming, Laramie, Wyoming 82071 Peer Review Administered by American Fisheries Society Rahel, F.J. and L.A. Thel. (2004, August 31). Sturgeon Chub (Macrhybopsis gelida): a technical conservation assessment. [Online]. USDA Forest Service, Rocky Mountain Region. Available: http://www.fs.fed.us/r2/ projects/scp/assessments/sturgeonchub.pdf [date of access]. ACKNOWLEDGEMENTS We thank biologists from Colorado, Kansas, Nebraska, South Dakota, and Wyoming, and from the national forests and national grasslands within Region 2 who provided information about sturgeon chub within their jurisdictions. We especially thank Gregory Hayward and Richard Vacirca of the USDA Forest Service for their review of this species assessment. Comments also were provided by two anonymous reviewers. David B. McDonald of the University of Wyoming provided the population demographic matrix analysis. AUTHORS’ BIOGRAPHIES Frank J. Rahel is a professor in the Department of Zoology and Physiology at the University of Wyoming where he teaches courses in fi sheries management, ichthyology, and conservation biology. His research interests are centered around fi sh ecology and the infl uence of anthropogenic disturbances on fi sh assemblages. Laura A. Thel is a graduate research assistant in the Department of Zoology and Physiology at the University of Wyoming with research interests involving stream ecology, hydrology, and landscape ecology, especially as these are related to the management of native fi shes. COVER PHOTO CREDIT Sturgeon Chub (Macrhybopsis gelida). -
FISH LIST WISH LIST: a Case for Updating the Canadian Government’S Guidance for Common Names on Seafood
FISH LIST WISH LIST: A case for updating the Canadian government’s guidance for common names on seafood Authors: Christina Callegari, Scott Wallace, Sarah Foster and Liane Arness ISBN: 978-1-988424-60-6 © SeaChoice November 2020 TABLE OF CONTENTS GLOSSARY . 3 EXECUTIVE SUMMARY . 4 Findings . 5 Recommendations . 6 INTRODUCTION . 7 APPROACH . 8 Identification of Canadian-caught species . 9 Data processing . 9 REPORT STRUCTURE . 10 SECTION A: COMMON AND OVERLAPPING NAMES . 10 Introduction . 10 Methodology . 10 Results . 11 Snapper/rockfish/Pacific snapper/rosefish/redfish . 12 Sole/flounder . 14 Shrimp/prawn . 15 Shark/dogfish . 15 Why it matters . 15 Recommendations . 16 SECTION B: CANADIAN-CAUGHT SPECIES OF HIGHEST CONCERN . 17 Introduction . 17 Methodology . 18 Results . 20 Commonly mislabelled species . 20 Species with sustainability concerns . 21 Species linked to human health concerns . 23 Species listed under the U .S . Seafood Import Monitoring Program . 25 Combined impact assessment . 26 Why it matters . 28 Recommendations . 28 SECTION C: MISSING SPECIES, MISSING ENGLISH AND FRENCH COMMON NAMES AND GENUS-LEVEL ENTRIES . 31 Introduction . 31 Missing species and outdated scientific names . 31 Scientific names without English or French CFIA common names . 32 Genus-level entries . 33 Why it matters . 34 Recommendations . 34 CONCLUSION . 35 REFERENCES . 36 APPENDIX . 39 Appendix A . 39 Appendix B . 39 FISH LIST WISH LIST: A case for updating the Canadian government’s guidance for common names on seafood 2 GLOSSARY The terms below are defined to aid in comprehension of this report. Common name — Although species are given a standard Scientific name — The taxonomic (Latin) name for a species. common name that is readily used by the scientific In nomenclature, every scientific name consists of two parts, community, industry has adopted other widely used names the genus and the specific epithet, which is used to identify for species sold in the marketplace. -
IGFA Angling Rules
International Angling Rules The following angling rules have been formulated by the International Game Fish Association to promote ethical and sporting angling practices, to establish uniform regulations for the compilation of world game fish records, and to provide basic angling guidelines for use in fishing tournaments and any other group angling activities. The word “angling” is defined as catching or attempting to catch fish with a rod, reel, line, and hook as outlined in the international angling rules. There are some aspects of angling that cannot be controlled through rule making, however. Angling regulations cannot insure an outstanding performance from each fish, and world records cannot indicate the amount of difficulty in catching the fish. Captures in which the fish has not fought or has not had a chance to fight do not reflect credit on the fisherman, and only the angler can properly evaluate the degree of achievement in establishing the record. Only fish caught in accordance with IGFA international angling rules, and within the intent of these rules, will be considered for world records. Following are the rules for freshwater and saltwater fishing and a separate set of rules for fly fishing. RULES FOR FISHING IN FRESH AND SALT WATER (Also see Rules for Fly fishing) E. ROD Equipment Regulations 1. Rods must comply with sporting ethics and customs. A. LINE Considerable latitude is allowed in the choice of a rod, but rods giving 1. Monofilament, multifilament, and lead core multifilament the angler an unfair advantage will be disqualified. This rule is lines may be used. For line classes, see World Record Requirements. -
Do Some Atlantic Bluefin Tuna Skip Spawning?
SCRS/2006/088 Col. Vol. Sci. Pap. ICCAT, 60(4): 1141-1153 (2007) DO SOME ATLANTIC BLUEFIN TUNA SKIP SPAWNING? David H. Secor1 SUMMARY During the spawning season for Atlantic bluefin tuna, some adults occur outside known spawning centers, suggesting either unknown spawning regions, or fundamental errors in our current understanding of bluefin tuna reproductive schedules. Based upon recent scientific perspectives, skipped spawning (delayed maturation and non-annual spawning) is possibly prevalent in moderately long-lived marine species like bluefin tuna. In principle, skipped spawning represents a trade-off between current and future reproduction. By foregoing reproduction, an individual can incur survival and growth benefits that accrue in deferred reproduction. Across a range of species, skipped reproduction was positively correlated with longevity, but for non-sturgeon species, adults spawned at intervals at least once every two years. A range of types of skipped spawning (constant, younger, older, event skipping; and delays in first maturation) was modeled for the western Atlantic bluefin tuna population to test for their effects on the egg-production-per-recruit biological reference point (stipulated at 20% and 40%). With the exception of extreme delays in maturation, skipped spawning had relatively small effect in depressing fishing mortality (F) threshold values. This was particularly true in comparison to scenarios of a juvenile fishery (ages 4-7), which substantially depressed threshold F values. Indeed, recent F estimates for 1990-2002 western Atlantic bluefin tuna stock assessments were in excess of threshold F values when juvenile size classes were exploited. If western bluefin tuna are currently maturing at an older age than is currently assessed (i.e., 10 v. -
Ottawa: Complete List of Seafood Samples
Ottawa: complete list of seafood samples Sold as Identified as (BOLD) Common name (CFIA Mislabelled Purchase (label/menu/server) market name) location Arctic char Salverus alpirus Arctic char (Arctic char, No Restaurant char) Arctic char Salverus alpirus Arctic char (Arctic char, No Restaurant char) Arctic char Salverus alpirus Arctic char (Arctic char, No Restaurant char) Arctic char Salverus alpirus Arctic char (Arctic char, No Grocery char) Store Butterfish Lepidocybium Escolar (Escolar, Snake Yes Restaurant flavobrunneum Mackerel) Cod, Fogo Island Gadus morhua Atlantic cod (Atlantic cod, No Restaurant cod) Cod, Atlantic Gadus morhua Atlantic cod (Atlantic cod, No Restaurant cod) Cod, Icelandic Gadus morhua Atlantic cod (Atlantic cod, No Restaurant cod) Cod, Atlantic Gadus morhua Atlantic cod (Atlantic cod, No Restaurant cod) (food truck) Cod, Atlantic Gadus macrocephalus Pacific cod (Pacific cod, cod) Yes Restaurant Cod, Pacific Micromesistius australis Southern blue whiting Yes Restaurant (Southern blue whiting, Blue whiting, Blue cod) Cod, Norwegian Gadus morhua Atlantic cod (Atlantic cod, No Restaurant cod) Cod, Atlantic Gadus morhua Atlantic cod (Atlantic cod, No Restaurant cod) Cod, Atlantic Gadus morhua Atlantic cod (Atlantic cod, No Restaurant cod) Cod, Alaskan Gadus macrocephalus Pacific cod (Pacific cod, cod) No Grocery Store Cod, Pacific Gadus macrocephalus Pacific cod (Pacific cod, cod) No Grocery Store Cod, North Atlantic Gadus macrocephalus Pacific cod (Pacific cod, cod) Yes Restaurant Cod Gadus macrocephalus Pacific cod (Pacific cod, cod) No Grocery Store Cod, Icelandic Gadus morhua Atlantic cod (Atlantic cod, No Grocery cod) Store Cod, Icelandic Gadus morhua Atlantic cod (Atlantic cod, No Grocery cod) Store Euro Bass Gadus morhua Atlantic cod (Atlantic cod, Yes Restaurant cod) Grouper Epinephelus diacanthus Spinycheek grouper (n/a) Yes – E. -
NOAA's Description of the U.S Commercial Fisheries Including The
6.0 DESCRIPTION OF THE PELAGIC LONGLINE FISHERY FOR ATLANTIC HMS The HMS FMP provides a thorough description of the U.S. fisheries for Atlantic HMS, including sectors of the pelagic longline fishery. Below is specific information regarding the catch of pelagic longline fishermen in the Gulf of Mexico and off the Southeast coast of the United States. For more detailed information on the fishery, please refer to the HMS FMP. 6.1 Pelagic Longline Gear The U.S. pelagic longline fishery for Atlantic HMS primarily targets swordfish, yellowfin tuna, or bigeye tuna in various areas and seasons. Secondary target species include dolphin, albacore tuna, pelagic sharks including mako, thresher, and porbeagle sharks, as well as several species of large coastal sharks. Although this gear can be modified (i.e., depth of set, hook type, etc.) to target either swordfish, tunas, or sharks, like other hook and line fisheries, it is a multispecies fishery. These fisheries are opportunistic, switching gear style and making subtle changes to the fishing configuration to target the best available economic opportunity of each individual trip. Longline gear sometimes attracts and hooks non-target finfish with no commercial value, as well as species that cannot be retained by commercial fishermen, such as billfish. Pelagic longline gear is composed of several parts. See Figure 6.1. Figure 6.1. Typical U.S. pelagic longline gear. Source: Arocha, 1997. When targeting swordfish, the lines generally are deployed at sunset and hauled in at sunrise to take advantage of the nocturnal near-surface feeding habits of swordfish. In general, longlines targeting tunas are set in the morning, deeper in the water column, and hauled in the evening. -
Atlantic Bluefin Tuna
QUALITY STATUS REPORT 2010 Case Reports for the OSPAR List of threatened and/or declining species and habitats – Update Nomination and biomass of older fish since 1993. The reported catch for the East Atlantic and Atlantic bluefin tuna Mediterranean stocks in 2000 was 33,754 MT, Thunnus thynnus about 60% of the peak catch in 1996 although this is probably an under-estimate because of increasing uncertainty about catch statistics (ICCAT, 2002). The best current determination of the state of the stock is that the Spawning Stock Biomass is 86% of the 1970 level. This is similar to the results obtained in 1998 in terms of trends, but more optimistic in terms of current depletion. Nevertheless, the International Commission for the Conservation of Atlantic Tunas (ICCAT) Geographical extent considers that current catch levels are not OSPAR Regions: V sustainable in the long-term (ICCAT, 2002). Biogeographic zones:1,2,4-8 Region & Biogeographic zones specified for Sensitivity decline and/or threat: as above The Atlantic bluefin tuna has a slow growth rate, long life span (up to 20 years) and late The Atlantic bluefin tuna is an oceanic species age of maturity for a fish (4-5 years for the that comes close to shore on a seasonal basis. eastern stock) resulting in a large number of Current management regimes work on the juvenile classes. These characteristics make it basis of their being two stocks, an Eastern more vulnerable to fishing pressure than Atlantic and a Western Atlantic stock, although rapidly growing tropical tuna species (ICCAT, some intermingling is thought to occur along 2002). -
EU Fisheries Policy – Latest Developments and Future Challenges
STUDY Requested+ by the PECH committee EU fisheries policy – latest developments and future challenges Policy Department for Structural and Cohesion Policies Directorate-General for Internal Policies EN PE 629.202 − September 2019 RESEARCH FOR PECH COMMITTEE EU fisheries policy – latest developments and future challenges Abstract This study examines the latest developments of the Common Fisheries Policy (CFP) in the fields of fisheries management, Common Market Organisation (CMO) and its external dimension. It also discusses the potential challenges that the EU fisheries policy might be facing in the near future. The present research contains ten case studies and concludes with possible solutions and recommendations to address some of the sector’s forthcoming challenges. This document was requested by the European Parliament's Committee on Fisheries. AUTHORS AZTI: Martín ARANDA, Raúl PRELLEZO, Marina SANTURTÚN DTU Aqua: Clara ULRICH Université de Brest: Bertrand LE GALLIC FishFix: Lisa BORGES SAKANA Consultants: Sébastien METZ Research manager: Marcus BREUER Project and publication assistance: Mariana VACLAVOVA Policy Department for Structural and Cohesion Policies, European Parliament LINGUISTIC VERSIONS Original: EN ABOUT THE PUBLISHER To contact the Policy Department or to subscribe to updates on our work for the PECH Committee please write to: [email protected] Manuscript completed in September 2019 © European Union, 2019 This document is available on the internet in summary with option to download the full text at: http://bit.ly/2k6rVSX This document is available on the internet at: http://www.europarl.europa.eu/RegData/etudes/STUD/2019/629202/IPOL_STU(2019)629202_EN.pdf Further information on research for PECH by the Policy Department is available at: https://research4committees.blog/PECH/ Follow us on Twitter: @PolicyPECH Please use the following reference to cite this study: Aranda, M., Ulrich, C., Le Gallic, B., Borges, L., Metz, S., Prellezo, R., Santurtún, M. -
Atlantic BLUEFIN TUNA
Eastern Atlantic BLUEFIN TUNA FACTS ABOUT BLUEFIN TUNA There are three species of bluefin tuna: The world record for the biggest bluefin caught Atlantic, Pacific, and Southern. Of the Atlantic has stood since 1979 when a 679 kg bluefin was bluefin tuna species, there are two separate caught off the coast of Nova Scotia, Canada. stocks, Eastern and Western. Eastern Atlantic bluefin are thought to be 100% Bluefin can swim as fast as 70mph when mature by the age of five, while those from the they need to, but not for long. Western Atlantic stock are about nine years old before they reach adulthood. They can dive to >1000m, although they usually spend their time near the surface. Bluefin are a long-lived fish, estimated to have a lifespan of around 40 years, by which time Bluefin tuna start out no bigger than an eyelash, they could be as much as 3m long and can weigh gaining 1 kg in the first 6 months; at 10 years, as much as 750 kg. a bluefin tuna is around 2m / 170 kg and can reach 2.7 m / 400 kg at age 20. USUFUKU HONTEN LONGLINE ATLANTIC BLUEFIN TUNA FISHERY Status: Independent adjudicator’s decision Vessel size: 58 metres means the assessor is set to recommend the fishery for certification after a two-year Catch: an average of 19 operating days per year assessment process that included stakeholder from Oct-Nov catching Eastern Atlantic Bluefin tuna feedback and formal objections In 2018, 55.3 tonnes caught of the 28,200 tonnes Independent assessor: Control Union UK ICCAT total allowable catch, which is around 0.2% . -
A Global Valuation of Tuna an Update February 2020 (Final)
Netting Billions: a global valuation of tuna an update February 2020 (Final) ii Report Information This report has been prepared with the financial support of The Pew Charitable Trusts. The views expressed in this study are purely those of the authors. The content of this report may not be reproduced, or even part thereof, without explicit reference to the source. Citation: Macfadyen, G., Huntington, T., Defaux, V., Llewellin, P., and James, P., 2019. Netting Billions: a global valuation of tuna (an update). Report produced by Poseidon Aquatic Resources Management Ltd. Client: The Pew Charitable Trusts Version: Final Report ref: 1456-REG/R/02/A Date issued: 7 February 2020 Acknowledgements: Our thanks to the following consultants who assisted with data collection for this study: Richard Banks, Sachiko Tsuji, Charles Greenwald, Heiko Seilert, Gilles Hosch, Alicia Sanmamed, Anna Madriles, Gwendal le Fol, Tomasz Kulikowski, and Benoit Caillart. 7 February 2020 iii CONTENTS 1. BACKGROUND AND INTRODUCTION ................................................................... 1 2. STUDY METHODOLOGY ......................................................................................... 3 3. TUNA LANDINGS ..................................................................................................... 5 3.1 METHODOLOGICAL ISSUES ....................................................................................... 5 3.2 RESULTS ............................................................................................................... -
The Story of Atlantic Bluefin Tuna Is One of Intrigue, Filled with International Drama, Mafia Connections, and Plot Twists Worthy of a Movie
A brief from Sept 2017 Richard Herrmann The Story of Atlantic Bluefin Science-based management will ensure a healthy future Overview The story of Atlantic bluefin tuna is one of intrigue, filled with international drama, mafia connections, and plot twists worthy of a movie. The main character—Thunnus thynnus—is the largest and most athletic tuna, which can grow to the size of a small car and travel nearly as fast as one too. An Atlantic bluefin starts out no bigger than an eyelash and grows to several hundred pounds and more than 6 feet in length in less than a decade. Unlike most fish species, Atlantic bluefin are warm-blooded; the heat created in their huge swimming muscles enables bursting speed, sharp vision, and thought processing second to none in the fish world. They are among the Atlantic’s top predators, with few species they won’t eat—and even fewer that eat them. The fleets of fishing vessels plying the Atlantic—and hoping to cash in on the value that the species has in sushi markets in Japan and high-end restaurants around the world—present the greatest threat to the Atlantic bluefin. Fishermen are often paid more than $10,000 for a single Atlantic bluefin right at the dock. The value of a high- quality fish at the final point of sale can be tens of thousands of dollars. These transactions add up to be big business. A recent estimate set the value of Atlantic bluefin fishing at nearly $200 million at the dock in 2014— and over $800 million at the final point of sale.1 Experts estimate that, pound for pound, this species is the most valuable tuna in the world and likely the most valuable fish in the Atlantic Ocean or the Mediterranean Sea. -
Myxosporea: Ceratomyxidae) to Encompass Freshwater Species C
Erection of Ceratonova n. gen. (Myxosporea: Ceratomyxidae) to Encompass Freshwater Species C. gasterostea n. sp. from Threespine Stickleback (Gasterosteus aculeatus) and C. shasta n. comb. from Salmonid Fishes Atkinson, S. D., Foott, J. S., & Bartholomew, J. L. (2014). Erection of Ceratonova n. gen.(Myxosporea: Ceratomyxidae) to Encompass Freshwater Species C. gasterostea n. sp. from Threespine Stickleback (Gasterosteus aculeatus) and C. shasta n. comb. from Salmonid Fishes. Journal of Parasitology, 100(5), 640-645. doi:10.1645/13-434.1 10.1645/13-434.1 American Society of Parasitologists Accepted Manuscript http://cdss.library.oregonstate.edu/sa-termsofuse Manuscript Click here to download Manuscript: 13-434R1 AP doc 4-21-14.doc RH: ATKINSON ET AL. – CERATONOVA GASTEROSTEA N. GEN. N. SP. ERECTION OF CERATONOVA N. GEN. (MYXOSPOREA: CERATOMYXIDAE) TO ENCOMPASS FRESHWATER SPECIES C. GASTEROSTEA N. SP. FROM THREESPINE STICKLEBACK (GASTEROSTEUS ACULEATUS) AND C. SHASTA N. COMB. FROM SALMONID FISHES S. D. Atkinson, J. S. Foott*, and J. L. Bartholomew Department of Microbiology, Oregon State University, Nash Hall 220, Corvallis, Oregon 97331. Correspondence should be sent to: [email protected] ABSTRACT: Ceratonova gasterostea n. gen. n. sp. is described from the intestine of freshwater Gasterosteus aculeatus L. from the Klamath River, California. Myxospores are arcuate, 22.4 +/- 2.6 µm thick, 5.2 +/- 0.4 µm long, posterior angle 45 +/- 24°, with 2 sub-spherical polar capsules, diameter 2.3 +/- 0.2 µm, which lie adjacent to the suture. Its ribosomal small subunit sequence was most similar to an intestinal parasite of salmonid fishes, Ceratomyxa shasta (97%, 1,671/1,692 nt), and distinct from all other Ceratomyxa species (<85%), which are typically coelozoic parasites in the gall bladder or urinary system of marine fishes.