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Gill Nets and Their Operation
Gill Nets and their Operation Saly N. Thomas Central Institute of Fisheries Technology P.O. Matsyapuri, Cochin – 682 029 Email: [email protected] Gill net is a highly selective and passive gear accounting for 20% of all the fishing methods of the world. The simplicity of its design, construction, operation and its low energy requirement make the gear very popular in all the sectors especially in the traditional sector. It is a highly selective gear and the use of this gear in a responsible way ensures resource conservation. The gear is a vertical wall of netting, which is kept erect in water by means of floats and sinkers. The gear is mostly rectangular in shape whose upper end is mounted to a float line (head rope) and the lower end to a sinker line (foot rope). The nets are operated in the surface, column or bottom layers of the water column in inland, coastal and deep sea. Gill nets are operated for the capture of different groups of fishes such as sardine, mackerel, prawn, hilsa, and larger varieties like tuna, shark, seer fish, and other large pelagics. When operated for such larger varieties in the deeper areas of the sea the nets extend to several kilometers. Mechanism of fish capture in gill nets The fact that separates gill nets from all other type of fishing is that in gill nets the `mesh’ of the net serves the dual function of `selecting’ the fish to be caught and catching it. The capture of fish in gill nets depends on the net construction, its dimensions, and the shape of the fish body. -
Tongass National Forest
S. Hrg. 101-30, Pt. 3 TONGASS NATIONAL FOREST HEARING BEFORE THE SUBCOMMITTEE ON PUBLIC LANDS, NATIONAL PARKS AND FORESTS OF THE COMMITTEE ON ENERGY AND NATURAL RESOURCES UNITED STATES SENATE ONE HUNDRED FIRST CONGRESS SECOND SESSION ON H.R. 987 *&< TO AMEND THE ALASKA NATIONAL INTEREST LANDS CONSERVATION ACT, TO DESIGNATE CERTAIN LANDS IN THE TONGASS NATIONAL FOREST AS WILDERNESS, AND FOR OTHER PURPOSES FEBRUARY 26, 1990 ,*ly, Kposrretr PART 3 mm uwrSwWP Printed for the use of the Committee on Energy and Natural Resources Boston P«*5!!c y^rary Boston, MA 116 S. Hrg. 101-30, Pr. 3 TONGASS NATIONAL FOREST HEARING BEFORE THE SUBCOMMITTEE ON PUBLIC LANDS, NATIONAL PAEKS AND FORESTS OF THE COMMITTEE ON ENERGY AND NATURAL RESOURCES UNITED STATES SENATE ONE HUNDRED FIRST CONGRESS SECOND SESSION ON H.R. 987 TO AMEND THE ALASKA NATIONAL INTEREST LANDS CONSERVATION ACT, TO DESIGNATE CERTAIN LANDS IN THE TONGASS NATIONAL FOREST AS WILDERNESS, AND FOR OTHER PURPOSES FEBRUARY 26, 1990 PART 3 Printed for the use of the Committee on Energy and Natural Resources U.S. GOVERNMENT PRINTING OFFICE 29-591 WASHINGTON : 1990 For sale by the Superintendent of Documents, Congressional Sales Office U.S. Government Printing Office. Washington, DC 20402 COMMITTEE ON ENERGY AND NATURAL RESOURCES J. BENNETT JOHNSTON, Louisiana, Chairman DALE BUMPERS, Arkansas JAMES A. McCLURE, Idaho WENDELL H. FORD, Kentucky MARK O. HATFIELD, Oregon HOWARD M. METZENBAUM, Ohio PETE V. DOMENICI, New Mexico BILL BRADLEY, New Jersey MALCOLM WALLOP, Wyoming JEFF BINGAMAN, New Mexico FRANK H. MURKOWSKI, Alaska TIMOTHY E. WIRTH, Colorado DON NICKLES, Oklahoma KENT CONRAD, North Dakota CONRAD BURNS, Montana HOWELL T. -
And Wildlife, 1928-72
Bibliography of Research Publications of the U.S. Bureau of Sport Fisheries and Wildlife, 1928-72 UNITED STATES DEPARTMENT OF THE INTERIOR BUREAU OF SPORT FISHERIES AND WILDLIFE RESOURCE PUBLICATION 120 BIBLIOGRAPHY OF RESEARCH PUBLICATIONS OF THE U.S. BUREAU OF SPORT FISHERIES AND WILDLIFE, 1928-72 Edited by Paul H. Eschmeyer, Division of Fishery Research Van T. Harris, Division of Wildlife Research Resource Publication 120 Published by the Bureau of Sport Fisheries and Wildlife Washington, B.C. 1974 Library of Congress Cataloging in Publication Data Eschmeyer, Paul Henry, 1916 Bibliography of research publications of the U.S. Bureau of Sport Fisheries and Wildlife, 1928-72. (Bureau of Sport Fisheries and Wildlife. Kesource publication 120) Supt. of Docs. no.: 1.49.66:120 1. Fishes Bibliography. 2. Game and game-birds Bibliography. 3. Fish-culture Bibliography. 4. Fishery management Bibliogra phy. 5. Wildlife management Bibliography. I. Harris, Van Thomas, 1915- joint author. II. United States. Bureau of Sport Fisheries and Wildlife. III. Title. IV. Series: United States Bureau of Sport Fisheries and Wildlife. Resource publication 120. S914.A3 no. 120 [Z7996.F5] 639'.9'08s [016.639*9] 74-8411 For sale by the Superintendent of Documents, U.S. Government Printing OfTie Washington, D.C. Price $2.30 Stock Number 2410-00366 BIBLIOGRAPHY OF RESEARCH PUBLICATIONS OF THE U.S. BUREAU OF SPORT FISHERIES AND WILDLIFE, 1928-72 INTRODUCTION This bibliography comprises publications in fishery and wildlife research au thored or coauthored by research scientists of the Bureau of Sport Fisheries and Wildlife and certain predecessor agencies. Separate lists, arranged alphabetically by author, are given for each of 17 fishery research and 6 wildlife research labora tories, stations, investigations, or centers. -
Ghost Net Impacts on Coral Reefs Time to Complete Lesson: 20-30 Minutes
Ghost (net) Busters Ghost Net Impacts on Coral Reefs Time to complete lesson: 20-30 minutes Purpose of module: This module allows students to simulate the impacts of ghost nets on a coral reef. Students will build a model healthy reef ecosystem, damage it using a ghost net, and then remove it from the reef. Students will conduct a damage assessment caused by the net dragging across the reef using quadrats. Background information: Coral reefs, also known as the rainforests of the sea, are one of the most diverse and ecologically complex marine ecosystems. They are found in warm, tropical waters with high salinity and high light exposure. A coral reef is made up of individual coral polyps that resemble tiny anemones and are attached to the reef. Each coral polyp is less than half an inch in diameter, but they live in colonies which Figure 1: A healthy coral reef system. can expand and take up the size of a small car. Reef building corals have a skeleton made of calcium carbonate, a mineral that is left behind when an individual coral dies. Another coral may settle on that spot and grow on top of the remaining skeleton. This allows a coral reef to grow a few centimeters each year, eventually reaching massive sizes. Coral reefs provide food and shelter for many plants, invertebrates, and fish. It is estimated that at least 25% of all marine life spendCredit: part MostBeautifulThings.net of their life at a coral reef. Coral reefs provide shelter for small fish, and small fish attract larger fish, which in turn attract large predators like sharks. -
Impact of “Ghost Fishing“ Via Derelict Fishing Gear
2015 NOAA Marine Debris Program Report Impact of “Ghost Fishing“ via Derelict Fishing Gear 2015 MARINE DEBRIS GHOST FISHING REPORT March 2015 National Oceanic and Atmospheric Administration National Ocean Service National Centers for Coastal Ocean Science – Center for Coastal Environmental Health and Biomolecular Research 219 Ft. Johnson Rd. Charleston, South Carolina 29412 Office of Response and Restoration NOAA Marine Debris Program 1305 East-West Hwy, SSMC4, Room 10239 Silver Spring, Maryland 20910 Cover photo courtesy of the National Oceanic and Atmospheric Administration For citation purposes, please use: NOAA Marine Debris Program. 2015 Report on the impacts of “ghost fishing” via derelict fishing gear. Silver Spring, MD. 25 pp For more information, please contact: NOAA Marine Debris Program Office of Response and Restoration National Ocean Service 1305 East West Highway Silver Spring, Maryland 20910 301-713-2989 Acknowledgements The National Oceanic and Atmospheric Administration (NOAA) Marine Debris Program would like to acknowledge Jennifer Maucher Fuquay (NOAA National Ocean Service, National Centers for Coastal Ocean Science) for conducting this research, and Courtney Arthur (NOAA National Ocean Service, Marine Debris Program) and Jason Paul Landrum (NOAA National Ocean Service, Marine Debris Program) for providing guidance and support throughout this process. Special thanks go to Ariana Sutton-Grier (NOAA National Ocean Science) and Peter Murphy (NOAA National Ocean Service, Marine Debris Program) for reviewing this paper and providing helpful comments. Special thanks also go to John Hayes (NOAA National Ocean Service, National Centers for Coastal Ocean Science) and Dianna Parker (NOAA National Ocean Science, Marine Debris Program) for a copy/edit review of this report and Leah L. -
Design a Safe Fishing Net Notes for Teachers
You need: Design a safe • Paper or card • Pencils • Colouring pens fishing net or pencils Thousands of whales and dolphins die every year because they get trapped in fishing nets. They can’t get to the surface to breathe, so they suffocate and drown. How can we design nets that can catch fish, but won’t accidentally catch whales and dolphins? Each child will need some 1 paper, a pencil and some colouring supplies. Their challenge is to design a net that will successfully catch fish, but won’t catch whales and dolphins. Encourage children to think about what they’ve learnt about whales 2 and dolphins that might help them with their designs, for example: • How do dolphins find their food? • How big are whales and dolphins? Scan or take photos of the best net designs and send them to [email protected] – we’d love to see them! Design a safe fishing net Notes for teachers Ask the children questions to encourage them to think about their designs. Their solutions might involve stopping whales and dolphins from swimming into the net in the first place, or ways to escape if they do get trapped. Some great ideas from other children have included: • Brightly coloured nets that are easily seen; • Nets that make noise to scare whales and dolphins away; • Sensors that detect if a whale or dolphin is nearby, then retract the net; • Monitored cameras so fishermen can see and release a trapped whale or dolphin; • Nets that do not close if a whale or dolphin, or the weight of a whale or dolphin, is detected. -
Marine Advisory China Fishing Vessels 03-2017.Pdf
8619 Westwood Center Drive Suite 300 THE REPUBLIC OF LIBERIA Vienna, Virginia 22182, USA Tel: +1 703 790 3434 LIBERIA MARITIME AUTHORITY Fax: +1 703 790 5655 Email: [email protected] Web: www.liscr.com 16 May 2017 Marine Advisory: 03/2017 SUBJECT: Precautions when Navigating Waters in and around Ningbo-Zhoushan, China Dear Owner, Operator, Master and Designated Person Ashore: Purpose The purpose of this Advisory is to bring attention to recent collisions involving Chinese fishing and Liberian flagged vessels and provide additional information to assist Master’s in safely navigating highly congested waters off Ningbo-Zhoushan in the East China Sea. These collisions occurred mostly at night or in fog conditions where visibility was restricted and additional lookouts were not engaged. Discussion The Chinese port Port of Ningbo-Zhoushan is located in Ningbo and Zhoushan on the coast of the East China Sea, in Zhejiang province and is ranked the busiest cargo port in the world. Large fleets of fishing junks may be encountered on the coast of China. The junks may not be carrying lights. They are solidly built and serious damage could be incurred by colliding with them. Fishing vessels vary from traditional rowing or sailing craft as little as 3m long to modern trawlers 15m long and over. We recently met with China Maritime Safety Administration (MSA) to review the collision cases and explore possible measures to help prevent similar casualties and loss of life. Attached is an Advisory prepared by Ningbo MSA that provides guidance for Master’s on navigating through the East China Sea and areas where there may be high concentrations of fishing vessels. -
Global Lessons and Information to Assist with Monofilament Gill Net Management in Ghana
Global lessons and information to assist with monofilament gill net management in Ghana For additional information on partner activities: WorldFish: http://www.worldfishcenter.org Friends of the Nation: http://www.fonghana.org Hen Mpoano: http://www.henmpoano.org Sustainametrix: http://www.sustainametrix.com This publication is available electronically on the Coastal Resources Center’s website at http://www.crc.uri.edu For more information on the Integrated Coastal and Fisheries Governance project, contact: Coastal Resources Center, University of Rhode Island, Narragansett Bay Campus, 220 South Ferry Road, Narragansett, Rhode Island 02882, USA. Brian Crawford, Director International Programs at [email protected]; Tel: 401-874-6224; Fax: 401-874-6920. Citation: Coastal Resources Center. (2013) Global lessons and information to assist with monofilament gill net management in Ghana. USAID Integrated Coastal and Fisheries Governance Program for the Western Region of Ghana. Narragansett, RI: Coastal Resources Center, Graduate School of Oceanography, University of Rhode Island. 14 pp. Disclaimer: This publication is made possible by the generous support of the American people through the United States Agency for International Development (USAID)/Ghana. The contents of this report are the responsibility of the Integrated Coastal and Fisheries Governance (ICFG) Program and do not necessarily reflect the views of the United States Government. Associate Cooperative Agreement No. 641-A-00-09-00036-00 for “Integrated Coastal and Fisheries Governance (ICFG) Program for the Western Region of Ghana,” under the Leader with Associates Award No. EPP-A-00-04-00014-00. Cover Photo: Fishermen repairing their nets Cover Photo Credit: Coastal Resources Center – Ghana [2 Acknowledgements Background research and drafting of this information brief was completed by Pip Cohen, with editorial input from David Mills. -
8–27–10 Vol. 75 No. 166 Friday Aug. 27, 2010 Pages 52607–52856
8–27–10 Friday Vol. 75 No. 166 Aug. 27, 2010 Pages 52607–52856 VerDate Mar 15 2010 18:41 Aug 26, 2010 Jkt 220001 PO 00000 Frm 00001 Fmt 4710 Sfmt 4710 E:\FR\FM\27AUWS.LOC 27AUWS hsrobinson on DSK69SOYB1PROD with PROPOSALS6 II Federal Register / Vol. 75, No. 166 / Friday, August 27, 2010 The FEDERAL REGISTER (ISSN 0097–6326) is published daily, SUBSCRIPTIONS AND COPIES Monday through Friday, except official holidays, by the Office of the Federal Register, National Archives and Records PUBLIC Administration, Washington, DC 20408, under the Federal Register Subscriptions: Act (44 U.S.C. Ch. 15) and the regulations of the Administrative Paper or fiche 202–512–1800 Committee of the Federal Register (1 CFR Ch. I). The Assistance with public subscriptions 202–512–1806 Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20402 is the exclusive distributor of the official General online information 202–512–1530; 1–888–293–6498 edition. Periodicals postage is paid at Washington, DC. Single copies/back copies: The FEDERAL REGISTER provides a uniform system for making Paper or fiche 202–512–1800 available to the public regulations and legal notices issued by Assistance with public single copies 1–866–512–1800 Federal agencies. These include Presidential proclamations and (Toll-Free) Executive Orders, Federal agency documents having general FEDERAL AGENCIES applicability and legal effect, documents required to be published Subscriptions: by act of Congress, and other Federal agency documents of public interest. Paper or fiche 202–741–6005 Documents are on file for public inspection in the Office of the Assistance with Federal agency subscriptions 202–741–6005 Federal Register the day before they are published, unless the issuing agency requests earlier filing. -
RECENT USE of FISH AGGREGATING DEVICES in the EASTERN TROPICAL PACIFIC TUNA PURSE-SEINE FISHERY: 1990-1994 (Revised March 1996)
RECENT USE OF FISH AGGREGATING DEVICES IN THE EASTERN TROPICAL PACIFIC TUNA PURSE-SEINE FISHERY: 1990-1994 (Revised March 1996) (This is a revised copy of Administrative Report LJ-95-14) By Wesley A. Armstrong and Charles W. Oliver Southwest Fisheries Science Center P.O. Box 271 La Jolla, California 92038-0271 March 1996 ADMINISTRATIVE REPORT LJ-96-02 Contents Page List of Figures....................................................................................................................................ii List of Tables.................................................................................................................................... iii INTRODUCTION............................................................................................................................1 LOGS ...............................................................................................................................................2 FADS................................................................................................................................................4 FAD INVESTIGATIONS: 1990-1992 .............................................................................................6 FAD INVESTIGATIONS: 1993-1994 .............................................................................................7 DOLPHIN-SAFE QUESTIONNAIRE.............................................................................................8 SKIPPER A's FADs: Drifting FADs: Construction and Deployment..........................................................................9 -
September 1981 Leaky Boots—Letters from Our Readers 2 Acid Mine Drainage by David R
'3f!r>- m. \.y- •' *:.: % mm ASingl e Copy • •sESfc iHh / AN IMPORTANT MEETING A bout a month ago, while visiting with Senators Heinz and Simpson (Wyoming), my complaints about the policies of Secretary of Interior James Watt inspired our senior U.S. Senator to arrange a meeting with Secretary Watt for a number of persons in Pennsylvania with concerns about conservation of natural resources. The breakfast meeting was ar ranged for July 30, and along with members from the Pennsylvania Council of Trout Unlimited, the Pennsylvania Federation of Sportsmen's Clubs, the Pennsylvania Forestry Association, the Sierra Club, the Pennsylvania Environmental Council, National Audubon Society, and an out door writer, we had one and one-half hours to question Secretary James Watt and comment on his replies. The most serious questions were related to the reauthorization of the Air Quality Act, the lack of effective federal enforcement of the Surface Mining Act and the cuts in funds for tra ditional conservation agencies such as the U.S. Fish & Wildlife Service. Mr. Watt's answers were not always satisfying. He admitted that he must be evasive about the Air Quality Act because the Administration's position had not yet been announced, but did promise that he and his allies were not out to "gut" the Air Quality Act. The leaked version of the Administration's position is frightening, and if it is a true picture of what they will be proposing, we are in for over 120 changes in the present Act. Our fears about the increase in air pollution that can be a cause of acid precipitation would be realized. -
San&Ec Cap Tip A
•PRSRTSTD. U.S. Postage Paid Sanibel, FL Permit #33 Postal Patron San&eC • FRE™ Cap tip a Delivered to your home every Friday Since 1961 Vol.41, No. 11 Week of April 26 - May 2, 2002 Since 1961 32 Pages Michael Pistella The environmentally-conscious Sanibel Inn released a large number of ladybugs at the resorton Earth Day to promote organic gardening. Interior Secretary Gale Norton CROW'S Annual honored the 'Ding' Darling Taste of the Islands volunteers at the refuge See program on Tuesday. inside for details* See page 10 for story. Come to the .event April %S 2 • Week of April 26 - May 2, 2002 • Islander Display a "We Lave Our Islands" decal on your vehicle, and you could win $100 or more for your favorite island charity* lick up your free "We Love Our Islands" ticca I name or license plate number. If the weekly nt Bank of the Islands, and we all win. prize is nor claimed, the $100 donation will That's because, each week the first person be added to the winnings lor the following spotted displaying die decal on their vehicle week. by a Bank of the Islands staff member will be It's our way of saying thank you to our awarded a $ 100 donation to the island charity islanders and die non-profit organizations ot their choice. I hat help enrich our community. Check the Bank oi the Islands lobby, open When you display your "We Love Our Monday through Friday, each week for your Islands" deceit, we all win* ^ iBank ot sslslands Island Bank l&W IViimukle \V.n • Smibtl W.ind, H.