Fisheries Full Issue PDF Volume 39, Issue 3

Total Page:16

File Type:pdf, Size:1020Kb

Fisheries Full Issue PDF Volume 39, Issue 3 This article was downloaded by: [American Fisheries Society] On: 24 March 2014, At: 13:30 Publisher: Taylor & Francis Informa Ltd Registered in England and Wales Registered Number: 1072954 Registered office: Mortimer House, 37-41 Mortimer Street, London W1T 3JH, UK Fisheries Publication details, including instructions for authors and subscription information: http://www.tandfonline.com/loi/ufsh20 Full Issue PDF Volume 39, Issue 3 Published online: 21 Mar 2014. To cite this article: (2014) Full Issue PDF Volume 39, Issue 3, Fisheries, 39:3, 97-144, DOI: 10.1080/03632415.2014.902705 To link to this article: http://dx.doi.org/10.1080/03632415.2014.902705 PLEASE SCROLL DOWN FOR ARTICLE Taylor & Francis makes every effort to ensure the accuracy of all the information (the “Content”) contained in the publications on our platform. However, Taylor & Francis, our agents, and our licensors make no representations or warranties whatsoever as to the accuracy, completeness, or suitability for any purpose of the Content. Any opinions and views expressed in this publication are the opinions and views of the authors, and are not the views of or endorsed by Taylor & Francis. The accuracy of the Content should not be relied upon and should be independently verified with primary sources of information. Taylor and Francis shall not be liable for any losses, actions, claims, proceedings, demands, costs, expenses, damages, and other liabilities whatsoever or howsoever caused arising directly or indirectly in connection with, in relation to or arising out of the use of the Content. This article may be used for research, teaching, and private study purposes. Any substantial or systematic reproduction, redistribution, reselling, loan, sub-licensing, systematic supply, or distribution in any form to anyone is expressly forbidden. Terms & Conditions of access and use can be found at http:// www.tandfonline.com/page/terms-and-conditions VOL 39 NO 3 FisheriesAmerican Fisheries Society • www.fisheries.org MAR 2014 Downloaded by [American Fisheries Society] at 13:30 24 March 2014 In this Issue: Understanding Barotrauma Overpopulation and Fish AFS Chapter Roles Ecosystem Modeling Social Media: Take the Plunge! 03632415(2014)39(3) Downloaded by [American Fisheries Society] at 13:30 24 March 2014 Fisheries VOL 39 NO 3 MARCH 2014 Contents COLUMNS President’s Commentary 99 How Many People Are Enough (Too Many)? 135 An angler in Kerala, India. Photo credit: Antony Grossy. Those of us who think ecologically see the effects of population growth multiplied by per capita resource FEATURES consumption manifested in increased listings of threatened and endangered species, climate change, climate chaos, and 108 Understanding Barotrauma in Fish Passing Hydro degraded ecosystem services (including water quality and Structures: A Global Strategy for Sustainable Development availability, fisheries, and coral reef condition). of Water Resources Bob Hughes Understanding the causes of barotrauma in fish can be critical Letter from the Executive Director for sustainable development of water resources. 101 The Foundational Role of Chapters Richard S. Brown, Alison H. Colotelo, Brett D. Pflugrath, The AFS as a corporate body—Chapters, Sections, Divisions— Craig A. Boys, Lee J. Baumgartner, Z. Daniel Deng, Luiz G. needs to show how the additive value of the Society to a M. Silva, Colin J. Brauner, Martin Mallen-Cooper, Oudom prospective member’s professional and conservation goals is Phonekhampeng, Garry Thorncraft, and Douangkham worth the investment of his or her funds. Singhanouvong Doug Austen 123 Response to Dettmers et al. (2012): Great Lakes Fisheries Managers Are Pursuing Appropriate Goals Policy 102 Ecosystem Modeling to Support Fishery Management Randall M. Claramunt and David F. Clapp Managing fisheries with improved success will rely on models 126 Considerations When Determining Appropriate that offer contextual, heuristic, tactical, and strategic advice, Management Goals: A Reply to Claramunt and Clapp depending on their design and our needs. John M. Dettmers, Christopher I. Goddard, and Kelley D. Smith Thomas E. Bigford IN MEMORIAM Digital Revolution 103 Tablet Computers in Fisheries 128 Robert J. Behnke, George Gordon Fleener, Curt Kerns, These computers work well in all conditions and are built to Daniel Lluch Belda, Jacqueline F. Savino, and David W. Willis last. AFS CALL TO ACTION Jeff Kopaska 133 Killed in the Line of Work The Communication Stream Robert A. Klumb and Maegan E. Spindler 104 What to Do With Your New Twitter Account (or Facebook, or …) FRESHWATER, FISH, AND THE FUTURE You have your Twitter account. Okay. Now what? Downloaded by [American Fisheries Society] at 13:30 24 March 2014 Jeremiah Osborne-Gowey 135 Global Inland Fisheries Conference: Theme 1— Biological Assessment SPECIAL AFS ANNUAL MEETING 2014 105 Water Quality Section Introduction and History Water quality is integral to fisheries scientists’ work, whether 137 Meeting Update: Exploring Québec City monitoring an aquaculture pond, measuring fine sediment in JOURNAL HIGHLIGHTS streams, or restoring a natural waterway. Gregg A. Lomnicky, Robert H. Gray, and John W. Meldrim 139 North American Journal of Aquaculture, Volume 76, Number 1, January 2014 AFS NEWS CALENDAR 107 Don’t forget to vote; AFS wants to help you; April 142 Fisheries Events is Award Nominations Month; New Fisheries Guide for Authors is out (with a new Mission Statement); AFS NEW AFS MEMBERS 143 seeks Co-Chief Science Editor for Fisheries magazine; Bigford retires from NOAA (pssst… AFS grabs him!). Cover: An everted intestine in Serrudo. Photo credit: Carlos Bernardo M. Alves, Bio-Ambiental Consultancy. Fisheries • Vol 39 No 3 • March 2014 • www.fisheries.org 97 EDITORIAL / SUBSCRIPTION / CIRCULATION OFFICES 5410 Grosvenor Lane, Suite 110•Bethesda, MD 20814-2199 (301) 897-8616 • fax (301) 897-8096 • [email protected] The American Fisheries Society (AFS), founded in 1870, is the oldest and largest professional society representing fisheries scientists. The AFS promotes scientific research and enlightened management of aquatic resources for optimum use and enjoyment by the public. It also FisheriesAmerican Fisheries Society • www.fisheries.org encourages comprehensive education of fisheries scientists and continuing on-the-job training. AFS OFFICERS FISHERIES STAFF EDITORS DUES AND FEES FOR 2014 ARE: $80 in North America ($95 elsewhere) for regular PRESIDENT SENIOR EDITOR CHIEF SCIENCE EDITOR members, $20 in North America ($30 elsewhere) Bob Hughes Doug Austen Jeff Schaeffer for student members, and $40 ($50 elsewhere) for retired members. PRESIDENT ELECT DIRECTOR OF PUBLICATIONS SCIENCE EDITORS Donna L. Parrish Aaron Lerner Kristen Anstead Deirdre M. Kimball Fees include $19 for Fisheries subscription. Marilyn “Guppy” Blair Jeff Koch FIRST VICE PRESIDENT MANAGING EDITOR Jim Bowker Jim Long Nonmember and library subscription rates are Ron Essig Sarah Fox Mason Bryant Daniel McGarvey $182. Steven R. Chipps Jeremy Pritt SECOND VICE PRESIDENT CONTRIBUTING EDITOR Ken Currens Roar Sandodden Joe Margraf Beth Beard Andy Danylchuk Jesse Trushenski Michael R. Donaldson Usha Varanasi PAST PRESIDENT POLICY DIRECTOR Andrew H. Fayram Jack E. Williams John Boreman Thomas E. Bigford Stephen Fried Jeffrey Williams Larry M. Gigliotti BOOK REVIEW EDITOR EXECUTIVE DIRECTOR Madeleine Hall-Arbor Francis Juanes Doug Austen Alf Haukenes Jeffrey E. Hill ABSTRACT TRANSLATION Pablo del Monte-Luna Fisheries (ISSN 0363-2415) is published monthly by the American Fisheries Society; 5410 Grosvenor Lane, Suite 110; Bethesda, MD 20814-2199 © copyright 2014. Periodicals postage paid at Bethesda, Maryland, and at an additional mailing office. A copy of Fisheries Guide for Authors is available from the editor or the AFS website, www.fisheries.org. If requesting from the managing editor, please enclose a stamped, self-addressed envelope with your request. Republication or systematic or multiple reproduction of material in this publication is permitted only under consent or license from the American Fisheries Society. Postmaster: Send address changes to Fisheries, American Fisheries Society; 5410 Grosvenor Lane, Suite 110; Bethesda, MD 20814-2199. Fisheries is printed on 10% post-consumer recycled paper with soy-based printing inks. 2014 AFS MEMBERSHIP APPLICATION PAID: AMERICAN FISHERIES SOCIETY • 5410 GROSVENOR LANE • SUITE 110 • BETHESDA, MD 20814-2199 (301) 897-8616 x203 OR x224 • FAX (301) 897-8096 • WWW.FISHERIES .ORG NAME Recruited by an AFS member? yes no Name Address EMPLOYER Industry Academia City Federal gov’t State/Province ZIP/Postal Code State/provincial gov’t Country Other Please provide (for AFS use only) All memberships are for a calendar year. PAYMENT Phone New member applications received Janu- Please make checks payable to American Fisheries ary 1 through August 31 are processed for Society in U.S. currency drawn on a U.S. bank, or pay by Fax full membership that calendar year (back VISA, MasterCard, or American Express. issues are sent). Applications received E-mail September 1 or later are processed for _____Check _____VISA full membership beginning January 1 of _____MasterCard Downloaded by [American Fisheries Society] at 13:30 24 March 2014 the following year. _____American Express Account #______________________________________ MEMBERSHIP TYPE/DUES (Includes print Fisheries and online Membership Directory) Developing countries I (Includes online Fisheries only): N/A NORTH AMERICA; _____$10 OTHER Exp. Date _____________ Developing countries
Recommended publications
  • Gas Bubble Disease
    CONF-741033 Gas Bubble Disease Proceedings of a Workshop held at Richland, Washington, October 8-9, 1974 Cosponsored by Battelle, Pacific Northwest Laboratories, and U.S. Atomic Energy Commission Editors D. H. Fickeisen and M. J. Schneider 1976 Published by Technical Information Center, Office of Public Affairs Energy Research and Development Administration E. M. Dawley Effec s of ong­ M. Schiewe Term Exposure to B. Monk Supersaturation of Dissolved Atmospheric Gases on Juvenile Chinook Salmon and Steelhead Trout in Deep and Shallow Test Tanks ABSTRACT Dawley and Ebel, 1974) but there are still many un­ Bioassays in shallow (0.25 m) and deep (2.5 m) tanks with dis­ Jnswered questions regarding the effects of chronic solved atmospheric gas concentrations ranging from 100 to low-level exposure on survival. Fish may be subjected ° 127% of saturation in water at 10 C were conducted to deter­ to low levels of supersaturation in two ways. They mine the lethal and sublethal effects on juvenile fall chinook Oncorhynchus tschawytscha and steelhead trout Sa/mo gairdneri. may inhabit water areas where they cannot com­ Juvenile fall chinook (38.7 to 41.3 mm) were much more pensate for gas saturation by sounding, or they resistant to supersaturation than juvenile steelhead (164 to may inhabit deep water areas where hydrostatic 196 mm). Chinook tested in the shallow tanks at 120% of super­ pressure offsets the effects of high gas levels. saturation incurred 50% mortality after 22 days, whereas steel­ head tested at the same level incurred 50% mortality in 30 hr. The National Marine Fisheries Service, funded Gas bubble disease signs were noted on mortalities and on live in part by the Environmental Protection Agency subsamples taken every 28 days.
    [Show full text]
  • Fish Species of Saskatchewan
    Introduction From the shallow, nutrient -rich potholes of the prairies to the clear, cool rock -lined waters of our province’s north, Saskatchewan can boast over 50,000 fish-bearing bodies of water. Indeed, water accounts for about one-eighth, or 80,000 square kilometers, of this province’s total surface area. As numerous and varied as these waterbodies are, so too are the types of fish that inhabit them. In total, Saskatchewan is home to 67 different fish species from 16 separate taxonomic families. Of these 67, 58 are native to Saskatchewan while the remaining nine represent species that have either been introduced to our waters or have naturally extended their range into the province. Approximately one-third of the fish species found within Saskatchewan can be classed as sportfish. These are the fish commonly sought out by anglers and are the best known. The remaining two-thirds can be grouped as minnow or rough-fish species. The focus of this booklet is primarily on the sportfish of Saskatchewan, but it also includes information about several rough-fish species as well. Descriptions provide information regarding the appearance of particular fish as well as habitat preferences and spawning and feeding behaviours. The individual species range maps are subject to change due to natural range extensions and recessions or because of changes in fisheries management. "...I shall stay him no longer than to wish him a rainy evening to read this following Discourse; and that, if he be an honest Angler, the east wind may never blow when he goes a -fishing." The Compleat Angler Izaak Walton, 1593-1683 This booklet was originally published by the Saskatchewan Watershed Authority with funds generated from the sale of angling licences and made available through the FISH AND WILDLIFE DEVELOPMENT FUND.
    [Show full text]
  • Northern Pike Esox Lucius ILLINOIS RANGE
    northern pike Esox lucius Kingdom: Animalia FEATURES Phylum: Chordata The northern pike's average life span is eight to 10 Class: Osteichthyes years. The average weight is two pounds. It may Order: Esociformes attain a maximum length of 53 inches. The fins are rounded, and all except the pectoral fins have dark Family: Esocidae spots. Scales are present on the cheek and half of ILLINOIS STATUS the gill cover. The eyes are yellow. The long, green body has yellow spots on the sides. The belly is common, native white to dark yellow. The duckbill-shaped snout is easily seen. BEHAVIORS The northern pike lives in lakes, rivers and marshes. It prefers water without strong currents and with many plants. This fish reaches maturity at age two to three years. Spawning occurs in March. The female deposits up to 150,000 eggs that are scattered in marshy areas or other shallow water areas. Eggs hatch in 12-14 days. This fish eats fishes, insects, crayfish, frogs and reptiles. ILLINOIS RANGE © Illinois Department of Natural Resources. 2020. Biodiversity of Illinois. Unless otherwise noted, photos and images © Illinois Department of Natural Resources. close up of head close up of side © Illinois Department of Natural Resources. 2020. Biodiversity of Illinois. Unless otherwise noted, photos and images © Illinois Department of Natural Resources. © Engbretson Underwater Photography adult Aquatic Habitats lakes, ponds and reservoirs; rivers and streams; marshes Woodland Habitats none Prairie and Edge Habitats none © Illinois Department of Natural Resources. 2020. Biodiversity of Illinois. Unless otherwise noted, photos and images © Illinois Department of Natural Resources..
    [Show full text]
  • Use of Oxygen Readings to Avoid Gas Bubble Disease in Clam Hatcheries
    I.OAtlCOPY ONg NJNSC-G-98-001 C3 g k ~ February 1998 FS906 Use of Oxygen Readings to Avoid Gas Bubble Disease in Clam Hatcheries By Dr. John N. Kraeuter, Haskin Shellfish ResearchLab Rutgers Uni versity and Gef Flimlin New Jersey Sea Grant Marine Advisory Service The major gases in air and water are nitrogen because nitrogen is the dominant gas in air and 8%! and oxygen 1%!. It is obvious that bay water water, and it is not metabolized by the shellfish, contains oxygen, because if it didn't phytoplankton, Nitrogen, like oxygen, enters the organism through shellfish and fish couldn't live there. Everyone has the gills, and then is carried to the tissue by the seen summer fish kills from insufficient oxygen, or blood. Once distributed, nitrogen remains in the suffocated clams under dense piles of seaweed. These tissue while oxygen is used iip. If nitrogen enters the organisms, like humans, need oxygen to carry on the tissue in a supersaturated condition and accumulates, normal functions; however, water of different it will respond by coming out of solution into the temperature, salinity and pressure holds differing organism in the form of bubbles. Divers call these ainounts of oxygen and other gases called air. Too bubbles the bends, in shellfish it is called gas bubble high a concentration of gas or too low a concentration disease. can cause an organism to die. When the concentration of a gas, like oxygen, is the exact amount the water can hold for the pressure, temperature, and salinity; the water is considered "saturated".
    [Show full text]
  • And Crassostrea Virginica (Gmelin)
    View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by College of William & Mary: W&M Publish W&M ScholarWorks VIMS Articles 1987 Effect Of Air-Supersaturated Sea Water On Argopecten irradians concentricus (Say) And Crassostrea virginica (Gmelin) Robert Bisker Virginia Institute of Marine Science Michael Castagna Virginia Institute of Marine Science Follow this and additional works at: https://scholarworks.wm.edu/vimsarticles Part of the Aquaculture and Fisheries Commons Recommended Citation Bisker, Robert and Castagna, Michael, "Effect Of Air-Supersaturated Sea Water On Argopecten irradians concentricus (Say) And Crassostrea virginica (Gmelin)" (1987). VIMS Articles. 1289. https://scholarworks.wm.edu/vimsarticles/1289 This Article is brought to you for free and open access by W&M ScholarWorks. It has been accepted for inclusion in VIMS Articles by an authorized administrator of W&M ScholarWorks. For more information, please contact [email protected]. Journal of Shellfish Research, Vol. 6, No. 2, 79-83, 1987. EFFECT OF AIR-SUPERSATURATED SEAWATER ON ARGOPECTEN IRRADIANS CONCENTRICUS (SAY) AND CRASSOSTREA VIRGIN/CA (GMELIN) ROBERT BISKER & MICHAEL CASTAGNA Virginia Institute of Marine Science School of Marine Science College of William and Mary Wachapreague, Virginia 23480 ABSTRACT Argopecten irradians concentricus and Crassostrea virginica were exposed to several different levels of supersaturated seawater at temperatures ranging from 10 to 2!°C. Gas bubble trauma occurred at a total gas saturation level of 116%, causing mortality in juvenile A. i. concentricus and reduced growth in juvenile C. virginica. KEY WORDS: Gas bubble trauma, air-supersaturated seawater, Argopecten, Crassostrea, cultured bivalves. INTRODUCTION bubble formation (Colt 1983).
    [Show full text]
  • APPENDIX M Common and Scientific Species Names
    Bay du Nord Development Project Environmental Impact Statement APPENDIX M Common and Scientific Species Names Bay du Nord Development Project Environmental Impact Statement Common and Species Names Common Name Scientific Name Fish Abyssal Skate Bathyraja abyssicola Acadian Redfish Sebastes fasciatus Albacore Tuna Thunnus alalunga Alewife (or Gaspereau) Alosa pseudoharengus Alfonsino Beryx decadactylus American Eel Anguilla rostrata American Plaice Hippoglossoides platessoides American Shad Alosa sapidissima Anchovy Engraulidae (F) Arctic Char (or Charr) Salvelinus alpinus Arctic Cod Boreogadus saida Atlantic Bluefin Tuna Thunnus thynnus Atlantic Cod Gadus morhua Atlantic Halibut Hippoglossus hippoglossus Atlantic Mackerel Scomber scombrus Atlantic Salmon (landlocked: Ouananiche) Salmo salar Atlantic Saury Scomberesox saurus Atlantic Silverside Menidia menidia Atlantic Sturgeon Acipenser oxyrhynchus oxyrhynchus Atlantic Wreckfish Polyprion americanus Barndoor Skate Dipturus laevis Basking Shark Cetorhinus maximus Bigeye Tuna Thunnus obesus Black Dogfish Centroscyllium fabricii Blue Hake Antimora rostrata Blue Marlin Makaira nigricans Blue Runner Caranx crysos Blue Shark Prionace glauca Blueback Herring Alosa aestivalis Boa Dragonfish Stomias boa ferox Brook Trout Salvelinus fontinalis Brown Bullhead Catfish Ameiurus nebulosus Burbot Lota lota Capelin Mallotus villosus Cardinal Fish Apogonidae (F) Chain Pickerel Esox niger Common Grenadier Nezumia bairdii Common Lumpfish Cyclopterus lumpus Common Thresher Shark Alopias vulpinus Crucian Carp
    [Show full text]
  • Esox Lucius) Ecological Risk Screening Summary
    Northern Pike (Esox lucius) Ecological Risk Screening Summary U.S. Fish & Wildlife Service, February 2019 Web Version, 8/26/2019 Photo: Ryan Hagerty/USFWS. Public Domain – Government Work. Available: https://digitalmedia.fws.gov/digital/collection/natdiglib/id/26990/rec/22. (February 1, 2019). 1 Native Range and Status in the United States Native Range From Froese and Pauly (2019a): “Circumpolar in fresh water. North America: Atlantic, Arctic, Pacific, Great Lakes, and Mississippi River basins from Labrador to Alaska and south to Pennsylvania and Nebraska, USA [Page and Burr 2011]. Eurasia: Caspian, Black, Baltic, White, Barents, Arctic, North and Aral Seas and Atlantic basins, southwest to Adour drainage; Mediterranean basin in Rhône drainage and northern Italy. Widely distributed in central Asia and Siberia easward [sic] to Anadyr drainage (Bering Sea basin). Historically absent from Iberian Peninsula, Mediterranean France, central Italy, southern and western Greece, eastern Adriatic basin, Iceland, western Norway and northern Scotland.” Froese and Pauly (2019a) list Esox lucius as native in Armenia, Azerbaijan, China, Georgia, Iran, Kazakhstan, Mongolia, Turkey, Turkmenistan, Uzbekistan, Albania, Austria, Belgium, Bosnia Herzegovina, Bulgaria, Croatia, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Macedonia, Moldova, Monaco, 1 Netherlands, Norway, Poland, Romania, Russia, Serbia, Slovakia, Slovenia, Sweden, Switzerland, United Kingdom, Ukraine, Canada, and the United States (including Alaska). From Froese and Pauly (2019a): “Occurs in Erqishi river and Ulungur lake [in China].” “Known from the Selenge drainage [in Mongolia] [Kottelat 2006].” “[In Turkey:] Known from the European Black Sea watersheds, Anatolian Black Sea watersheds, Central and Western Anatolian lake watersheds, and Gulf watersheds (Firat Nehri, Dicle Nehri).
    [Show full text]
  • Lake St. Clair Food Web MENT of C
    ATMOSPH ND ER A I C C I A N D A M E I C N O I S L T A R N A T O I I O T N A N U E .S C .D R E E PA M RT OM Lake St. Clair Food Web MENT OF C Sea Lamprey White Bass Walleye Rock Bass Muskellunge Smallmouth Bass Northern Pike Pumpkinseed Yellow Perch Rainbow Common Carp Smelt Channel Catfish Freshwater Drum Spottail Shiner Round Goby Lake Sturgeon Mayfly nymphs Gammarus Raptorial waterflea Zebra/Quagga mussels Invasive waterflea Chironomids Mollusks Calanoids Native waterflea Cyclopoids Diatoms Green algae Blue-green algae Flagellates Rotifers Foodweb based on “Impact of exotic invertebrate invaders on food web structure and function in the Great Lakes: NOAA, Great Lakes Environmental Research Laboratory, 4840 S. State Road, Ann Arbor, MI A network analysis approach” by Mason, Krause, and Ulanowicz, 2002 - Modifications for Lake St. Clair, 2009. 734-741-2235 - www.glerl.noaa.gov Lake St. Clair Food Web Sea Lamprey Planktivores/Benthivores Sea lamprey (Petromyzon marinus). An aggressive, non-native parasite that Lake Sturgeon (Acipenser fulvscens). Endangered over most of its historic fastens onto its prey and rasps out a hole with its rough tongue. range. Its diet commonly includes small clams, snails, crayfish, sideswimmers, aquatic insect larvae, algae, and other plant matter. Piscivores (Fish Eaters) Macroinvertebrates White bass (Morone Chrysops). Prefers clear open water in lakes and large rivers. Chironomids/Oligochaetes. Larval insects and worms that live on the lake Visual feeders, uses sight instead of smell to find prey.
    [Show full text]
  • Current Ocean Wise Approved Canadian MSC Fisheries
    Current Ocean Wise approved Canadian MSC Fisheries Updated: November 14, 2017 Legend: Blue - Ocean Wise Red - Not Ocean Wise White - Only specific areas or gear types are Ocean Wise Species Common Name Latin Name MSC Fishery Name Gear Location Reason for Exception Clam Clearwater Seafoods Banquereau and Banquereau Bank Artic surf clam Mactromeris polynyma Grand Banks Arctic surf clam Hydraulic dredges Grand Banks Crab Snow Crab Chionoecetes opilio Gulf of St Lawrence snow crab trap Conical or rectangular crab pots (traps) North West Atlantic - Nova Scotia Snow Crab Chionoecetes opilio Scotian shelf snow crab trap Conical or rectangular crab pots (traps) North West Atlantic - Nova Scotia Snow Crab Chionoecetes opilio Newfoundland & Labrador snow crab Pots Newfoundland & Labrador Flounder/Sole Yellowtail flounder Limanda ferruginea OCI Grand Bank yellowtail flounder trawl Demersal trawl Grand Banks Haddock Trawl Bottom longline Gillnet Hook and Line CAN - Scotian shelf 4X5Y Trawl Bottom longline Gillnet Atlantic haddock Melangrammus aeglefinus Canada Scotia-Fundy haddock Hook and Line CAN - Scotian shelf 5Zjm Hake Washington, Oregon and California North Pacific hake Merluccius productus Pacific hake mid-water trawl Mid-water Trawl British Columbia Halibut Pacific Halibut Hippoglossus stenolepis Canada Pacific halibut (British Columbia) Bottom longline British Columbia Longline Nova Scotia and Newfoundland Gillnet including part of the Grand banks and Trawl Georges bank, NAFO areas 3NOPS, Atlantic Halibut Hippoglossus hippoglossus Canada
    [Show full text]
  • Atlantic Goliath Grouper of Florida
    AtlAntic GoliAth Grouper of floridA: to fish or not to fish Christopher C. Koenig1, Felicia C. Coleman and Christopher R. Malinowski— Florida State University Coastal and Marine Laboratory, 3618 Coastal Highway 98, St. Teresa, FL 32358 FISHERIES | VOL. 45 * NO. 1 |JANUARY 2020 1 Corresponding author ([email protected]) 1 ABSTRACT The Atlantic Goliath Grouper Epinephelus itajara, a large indigenous tropical reef fish, approached local extinction in U. S. waters by the 1980s as a result of intense fishing pressure. In 1990, federal and state laws intervened to protect this species. The resulting fishery closure, over the intervening years, allowed limited, slow population recovery in Florida waters while populations outside of the U. S. remained vulnerable (IUCN: Bertoncini et al. 2018). The closure led to the blossoming of a dive ecotourism industry catering to local and international divers seeking opportunities to see and photograph these enormous fish. This fundamentally changes the paradigm for Goliath Grouper from a fishery resource to a non-extractive resource with a commercial value vastly greater than that gained through fishing. While federal and state agencies attempted to re-establish the fishery, all three stock assessments were rejected after peer review. Here, we discuss Goliath Grouper’s biology, the controversy surrounding its protection, and the drawbacks of re-establishing a fishery, including: the loss of nursery habitat, increasingly destructive episodic events like red tide and cold snaps, and the effects of mercury contamination on survival. Add to this the human health risk of consuming mercury-contaminated fishes, and the argument supporting re-opening the fishery evaporates.
    [Show full text]
  • Issue 4: July 2018
    Fish Health News You Can Use Brought to you by the Pacific Region Fish Health Program July 2018, edition Salt Use, Parasites, Stress, and This Issue Page 1 - Salt use, parasites, stress, and Osmoregulation osmoregulation Maintaining adequate amounts of salt in their Page 4 - Fungi blood is a critical, difficult, and energy intensive Page 6 - Fun fungi factoids task for all fish. Like us, fish have almost 9 Page 7 - PRFHP updates grams per liter (9 parts per thousand or 9 ppt) Page 9 - Another long (but understandable and of salt in their blood. However, the freshwater important) gas bubble disease essay environment (especially here in the Pacific Page 16 - Mystery parasite of the day Northwest) has almost no salt. This means that fish are constantly loosing salt as it leaks from Contact Us their skin and gills into the water. The only way Pacific Region Fish Health Program Manager to keep up with that salt loss is to either 1) take Andrew Goodwin in new salt in food, or 2) to use energy to pump US Fish and Wildlife Service, Pacific Region salts from the environment in through the gills 911 N.E. 11th Avenue and back into the blood. Portland, OR 97232 Phone: (503) 231-6784 Fish gills are an especially critical area for salt management. In the gills of the fish, the only Email: [email protected] Website barrier between the blood and the environment www.fws.gov/pacific/Fisheries/fishhealth/ is the gill membrane. That membrane is super thin (a few thousandths of a millimeter thick) to efficiently allow oxygen in and carbon dioxide out.
    [Show full text]
  • A Meta‐Analysis of Gas Bubble Trauma in Fish
    Received: 24 April 2020 | Revised: 23 June 2020 | Accepted: 23 July 2020 DOI: 10.1111/faf.12496 ORIGINAL ARTICLE A meta-analysis of gas bubble trauma in fish Naomi K. Pleizier1 | Dirk Algera2 | Steven J. Cooke2 | Colin J. Brauner1 1Department of Zoology, University of British Columbia, Vancouver, BC, Canada Abstract 2Fish Ecology and Conservation Physiology Total dissolved gas (TDG) supersaturation generated by dams is known to cause gas Laboratory, Department of Biology, Carleton bubble trauma (GBT) and mortality in fish, but despite many studies on the topic, University, Ottawa, ON, Canada there have been no recent attempts to systematically review the data. We con- Correspondence ducted a systematic review and meta-analysis to determine how different levels of Naomi K. Pleizier, Department of Zoology, University of British Columbia, #4200 - TDG supersaturation in laboratory experiments impact mortality and GBT outcomes 6270, University Blvd., Vancouver, British of freshwater fishes. We also examined all TDG laboratory studies on freshwater Columbia, Canada. Email: [email protected] fish to identify research gaps in the GBT literature. Factors that improved the linear mixed-effects models and Cox proportional hazards models of the relationship be- Funding information Natural Sciences and Engineering Research tween TDG supersaturation and time to 50% mortality, time to 10% mortality, time Council of Canada to the appearance of bubbles in the gills and time to external GBT symptoms include depth, temperature, oxygen-to-nitrogen ratios, species, body mass, the interaction between TDG and depth and author group for one or more of the models of the relationship between TDG and GBT outcomes.
    [Show full text]