Management of Shark Fin Trade to and from Australia
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Snakeheadsnepal Pakistan − (Pisces,India Channidae) PACIFIC OCEAN a Biologicalmyanmar Synopsis Vietnam
Mongolia North Korea Afghan- China South Japan istan Korea Iran SnakeheadsNepal Pakistan − (Pisces,India Channidae) PACIFIC OCEAN A BiologicalMyanmar Synopsis Vietnam and Risk Assessment Philippines Thailand Malaysia INDIAN OCEAN Indonesia Indonesia U.S. Department of the Interior U.S. Geological Survey Circular 1251 SNAKEHEADS (Pisces, Channidae)— A Biological Synopsis and Risk Assessment By Walter R. Courtenay, Jr., and James D. Williams U.S. Geological Survey Circular 1251 U.S. DEPARTMENT OF THE INTERIOR GALE A. NORTON, Secretary U.S. GEOLOGICAL SURVEY CHARLES G. GROAT, Director Use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply endorsement by the U.S. Geological Survey. Copyrighted material reprinted with permission. 2004 For additional information write to: Walter R. Courtenay, Jr. Florida Integrated Science Center U.S. Geological Survey 7920 N.W. 71st Street Gainesville, Florida 32653 For additional copies please contact: U.S. Geological Survey Branch of Information Services Box 25286 Denver, Colorado 80225-0286 Telephone: 1-888-ASK-USGS World Wide Web: http://www.usgs.gov Library of Congress Cataloging-in-Publication Data Walter R. Courtenay, Jr., and James D. Williams Snakeheads (Pisces, Channidae)—A Biological Synopsis and Risk Assessment / by Walter R. Courtenay, Jr., and James D. Williams p. cm. — (U.S. Geological Survey circular ; 1251) Includes bibliographical references. ISBN.0-607-93720 (alk. paper) 1. Snakeheads — Pisces, Channidae— Invasive Species 2. Biological Synopsis and Risk Assessment. Title. II. Series. QL653.N8D64 2004 597.8’09768’89—dc22 CONTENTS Abstract . 1 Introduction . 2 Literature Review and Background Information . 4 Taxonomy and Synonymy . -
Best Practice in the Prevention of Shark Finning
Best practice in the prevention of shark finning Brautigam, A. 2020. Best Practice in the Prevention of Shark Finning. Published by the Marine Stewardship Council [www.msc.org]. This work is licensed under Creative Commons BY 4.0 to view a copy of this license, visit (https://creativecommons.org/licenses/by/4.0). The views and opinions expressed in this report are those of the authors and do not necessarily reflect the official policy or position of the Marine Stewardship Council. Best Practice in the Prevention of Shark Finning FINAL Report to the Marine Stewardship Council Amie Bräutigam, Consultant 7 July 2020 Marine Stewardship Council (MSC) Best Practice in the Prevent of Shark Finning FINAL Report – 7 July 2020 Table of Contents Acronyms, Abbreviations and Glossary of Terms ............................................................................................... .2 I. Introduction ................................................................................................................................................... 3 II. Best Practice in the Prevention of Shark Finning – Scope and Methods.....……………………………………………...3 A. Scope…………………………………………………………………………………………………………………………………………….…..3 B. Methods…………………………………………………………………………………………………………………………………………….4 III. Findings……………………………………………………………………………………………………………………………………………………5 A. Prevalence and Evolution of Fins Naturally Attached (FNA) Globally………………………………………..………..5 C. Taxonomic Coverage of Shark Finning Bans and FNA Requirements .................................................... -
Fishing for Sharks History of Shark Finning Protection Towards Sharks Importance of Sharks Sharks Are a Top Predator of the Ocean
Shark Finning Tiana Barron-Wright Fishing for Sharks History of Shark Finning Protection Towards Sharks Importance of Sharks Sharks are a top predator of the ocean. However, sharks are a target Shark fin soup originated in 968 AD by an emperor from the Sung The Shark Finning Prohibition Act of 2000, was signed by former Sharks play an important role in the ecosystem. Sharks maintain the for humans. Shark finning is the process of cutting off a shark’s Dynasty. The emperor created shark fin soup to display his wealth, President Bill Clinton. This act prohibited the process of shark finning in species below them in the ecosystem and serve as a health indicator for the fins while it is still alive and throwing the shark back into the power and generosity towards his guest. Serving shark fin soup the United States. This bans anyone in the United States jurisdiction from ocean. The decrease of sharks in the oceans has led to the decline of coral ocean where it will die. After getting their fins cut off, some sharks shark finning, owning shark fins without the shark’s body, and landing reefs, sea grass beds, and the loss of commercial fisheries. Without sharks was seen as a show of respect. Chinese Emperors thought the dish in the ecosystem, other predators can thrive. For example, groupers can can starve to death, get eaten by other fish or drown to death. shark fins without the body. This act also has NOAA (National Oceanic had medicinal benefits. Shark fin soup is considered a delicacy in and Atmospheric Administration) Fisheries to give Congress a report increase in numbers and eat herbivores. -
What Is Shark Finning and Why Is It Harmful?
What is shark finning and why is it harmful? Shark finning is defined as the onboard removal of a shark’s fins and the discarding of the body at sea. This practice poses a significant threat to many shark stocks and to the health of marine ecosystems. It is also a threat to traditional fisheries and to food security in some low-income countries. A threat to sharks Tens of millions of sharks are finned every year. Once the shark has been discarded, the fins can be dried on deck, eliminating the need for freezer space. It is therefore inherently unsustainable, since it allows fishers to catch an almost unlimited number of sharks. This greatly increases the threat to sharks and, by removing large numbers of top predators from marine ecosystems, is likely to have dramatic and negative impacts on other species, including commercially-important species. Predictive modelling has shown that the removal of sharks from their ecosystems can have unpredictable and often devastating impacts on other species. Sharks are highly vulnerable to over-exploitation, owing to their slow growth, long gestation and low reproductive output. Over-exploited shark stocks can take years or even decades to recover. Some European shark fisheries that were closed fifty years ago remain so, as the populations have yet to recover. The threat of over-exploitation is exacerbated by the lengthy migrations undertaken by many shark species. Even if they are protected in one area, sharks can move into areas where they are not subject to protection. A threat to shark management Gathering and analysing catch data is the sine qua non of shark conservation. -
Sharks in the Seas Around Us: How the Sea Around Us Project Is Working to Shape Our Collective Understanding of Global Shark Fisheries
Sharks in the seas around us: How the Sea Around Us Project is working to shape our collective understanding of global shark fisheries Leah Biery1*, Maria Lourdes D. Palomares1, Lyne Morissette2, William Cheung1, Reg Watson1, Sarah Harper1, Jennifer Jacquet1, Dirk Zeller1, Daniel Pauly1 1Sea Around Us Project, Fisheries Centre, University of British Columbia, 2202 Main Mall, Vancouver, BC, V6T 1Z4, Canada 2UNESCO Chair in Integrated Analysis of Marine Systems. Université du Québec à Rimouski, Institut des sciences de la mer; 310, Allée des Ursulines, C.P. 3300, Rimouski, QC, G5L 3A1, Canada Report prepared for The Pew Charitable Trusts by the Sea Around Us project December 9, 2011 *Corresponding author: [email protected] Sharks in the seas around us Table of Contents FOREWORD........................................................................................................................................ 3 EXECUTIVE SUMMARY ................................................................................................................. 5 INTRODUCTION ............................................................................................................................... 7 SHARK BIODIVERSITY IS THREATENED ............................................................................. 10 SHARK-RELATED LEGISLATION ............................................................................................. 13 SHARK FIN TO BODY WEIGHT RATIOS ................................................................................ 14 -
Shark Fishing and the Fin Trade in Ghana: a Biting Review
Plenty of Fish in the Sea? Shark Fishing and the Fin Trade in Ghana: A Biting Review Max J. Gelber A Field Practicum Report submitted in partial fulfillment of the requirements for a Master of Sustainable Development Practice Degree at the University of Florida, in Gainesville, FL USA May 2018 Supervisory Committee: Dr. Paul Monaghan, Chair Dr. Renata Serra, Member Men hauling in their shark catch in Shama, Ghana. (Author’s photo, 2017) Acknowledgements This project was supported through generous funding from UF’s Center for African Studies, Center for Latin American Studies, and Master of Sustainable Development Practice (MDP) program. I would like to thank my committee members, Dr. Paul Monaghan and Dr. Renata Serra, and the MDP program’s administration, Dr. Glenn Galloway and Dr. Andrew Noss, for their invaluable guidance and support over the past two years. Through thick and thin, these professors have remained by my side, encouraging me to continue to achieve as a lifelong learner; for this, I am forever gracious. I would also like to thank Mr. Samuel Kofi Darkwa (Ph.D student in Political Science at West Virginia University), my language instructor at the 2016 African Flagship Languages Initiative (AFLI) Domestic Intensive Summer Program at UF, and Mr. Mohammed Kofi Mustapha (Ph.D student in Anthropology at the UF), for teaching me Akan/Twi. Their dedication and support have been instrumental in the planning and execution of this project. I believe that the study of language serves as the premier gateway to better understanding people and culture, and my experience learning Akan/Twi has reinforced this belief in so many ways. -
Sperm Cryopreservation
animals Article Effects of Cryoprotective Medium Composition, Dilution Ratio, and Freezing Rates on Spotted Halibut (Verasper variegatus) Sperm Cryopreservation Irfan Zidni 1 , Yun Ho Lee 1, Jung Yeol Park 1, Hyo Bin Lee 1, Jun Wook Hur 2 and Han Kyu Lim 1,* 1 Department of Marine and Fisheries Resources, Mokpo National University, Mokpo 58554, Korea; [email protected] (I.Z.); [email protected] (Y.H.L.); [email protected] (J.Y.P.); [email protected] (H.B.L.) 2 Faculty of Marine Applied Biosciences, Kunsan National University, 558 Daehak-ro, Gunsan, Jeonbuk 54150, Korea; [email protected] * Correspondence: [email protected]; Tel.: +82-61-450-2395; Fax: +82-61-452-8875 Received: 12 October 2020; Accepted: 16 November 2020; Published: 19 November 2020 Simple Summary: The spotted halibut, Verasper variegatus, is a popular fish species occurring naturally in the East China Sea and coastal areas of Korea and Japan. However, when reared in captivity, male and female spotted halibut do not usually mature synchronously. Maintaining production of this commercial fish in hatcheries through sperm cryopreservation is important. This study investigated the effect of several factors for successful cryopreservation of fish sperm including cryoprotective agents (CPAs), diluents, dilution ratios (Milt: CPA + diluents), and freezing rates. The observed factors significantly affected movable sperm ratio (MSR), sperm activity index (SAI), survival rate, and DNA damage after cryopreservation. In the present study, the mixture of 15% dimethyl sulfoxide (DMSO) + 300 mM sucrose with a dilution ratio lower than 1:2 and a freezing rate slower than 5 C/min provided the best treatment and reduced DNA damage. -
Spatial and Trophic Ecology of the Bluntnose Sixgill Shark Across A
Connectivity in deep water sharks and implications for bycatch Christina M. Comfort and Kevin C. Weng Department of Oceanography University of Hawaii at Manoa PFRP Annual Meeting November 26-27 2012 1 Elasmobranchs as bycatch in fisheries • Unwanted bycatch, commercially valuable non-target catch, or targeted • Shark finning is a major cause of shark population decline – high demand • Deep-sea sharks – Increasingly captured (sport, commercially valuable bycatch) – “Replacement” species as shallower populations are depleted – High impact expected • Long population doubling times • Many species have low fecundity • K-selected Lewison et al. 2004, Akhilesh et al., 2011 2 The bluntnose sixgill shark (Hexanchus griseus) • Extremely widely distributed species (i.e. Compagno, 1984; Ebert 1986) • Common on continental shelves, island slopes, seamounts (Compagno, 1984) • Reported up to 4.8 meters (females mature ~4m, males ~3m) (Bigelow and Schroeder, 1948) • Thought to be sluggish and have a small home range individually • Nothing known of population structure or migrations, if any 3 Why study sixgill sharks? Conservation – Anthropogenic impacts in fishing bycatch, climate change • Cross Seamount, N. America, Mexico, Mediterranean, Venezuela, Ireland, India, New Zealand… probably many more • Commercially used and sold in India, W. North America… – Impacts at species and ecosystem level unknown! –suspected to be unsustainable – Management requires more knowledge of basic biology + ecology 4 Near-global distribution of the sixgill shark Expected -
Shark Finning Script
This episode is brought to you by Pool Industries at Seattle University, producer of one-of-a-kind aquariums and plankton columns, good for the lab AND the home *wink* Define the challenge (Basic introduction to the topic) Jenna Rolf: So Karyssa... Ever heard of sharks? Karyssa Miller: To be honest Jen, I’ve never seen one in real life, but I did have a plastic toy as a kid! JR: Well let me tell you - they’re pretty neat. They’re top predators, meaning that they play a very important role in marine ecosystems and have no natural predators. KM: You mean they’re more than just that scary shark in Jaws that tries to eat everyone???? JR: Exactly. It’s actually the other way around - humans are the ones that are threatening sharks. In fact, humans kill an estimated 100 million sharks every year. This mostly happens through shark finning, which is a practice that involves cutting the fin off of the shark carcass, typically for shark fin soup or medicinal practices. KM: Yeah, the entire body is not needed since shark meat is not as profitable as the fin. Shark fins can reach prices of over $300/lb, making this one of the highest priced food sources in the world JR: Shark fin soup consumption is one of the leading causes of global shark decline. Fins first appeared as a delicacy in Chinese cuisine thousands of years ago around the year 960 and were later established as a luxury food item. KM: Obviously this is not a great practice for the sharks specifically, but it also affects marine ecosystems as a whole. -
Channel Catfish Review Life-History, Distribution, Invasion Dynamics and Current Management Strategies in the Pacific Northwest
Channel Catfish Review Life-history, distribution, invasion dynamics and current management strategies in the Pacific Northwest Thomas K Pool University of Washington Figure 1 Illustration of a channel catfish by Ted Walke (http://www.fish.state.pa.us/pafish/chancatm.jpg) Figure 2 Thomas L. Wellborn SRAC Publication No. 180 http://www.tpwd.state.tx.us/huntwild/wild/species/ccf/) Figure 3 Channel catfish: Note the barbels Figure 4 Channel catfish: Characteristic deeply forked located near the mouth© George tail © George Burgess (http://www.flmnh.ufl.edu) Burgess(http://www.flmnh.ufl.edu) All information in this report was compiled in November, 2007. Current distribution maps and background information may be outdated at this time. Diagnostic information 1a) Adipose fin a flag-like fleshy lobe, well- separated from caudal fin; tail squared, rounded, Ictalurus punctatus (Rafinesque, 1818) or forked; adults to over 24 inches Kingdom Animalia-- animals 1b) Adipose fin long, low, and 'keel-like', nearly Phylum Chordata-- chordates continuous with caudal fin; tail squared or Subphylum Vertebrata-- vertebrates rounded; adults small, never over 6 inches Superclass Osteichthyes-- bony fishes 2a) Tail deeply-forked, lobes pointed; anal fin Class Actinopterygii-- ray-finned fishes, spiny with 24 to 30 rays; bony ridge connecting skull rayed fishes and origin of dorsal fin; head relatively small Subclass Neopterygii-- neopterygians and narrow; young with small spots, larger Infraclass Teleostei adults blue-black in color without spots channel Superorder Ostariophysi catfish Ictalurus punctatus Order Siluriformes-- catfishes Family Ictaluridae Overview Genus Ictalurus Species Ictalurus punctatus Channel catfish are often grey or silver in color and can be one of the largest catfish species with a maximum size up to 915 mm and Basic identification 13 kg. -
Shark Finning Brochure
The Facts: Is this a serious problem? YES! 10-100 million sharks are killed Shark finning is the removal of shark fins and the discard each year by humans and globally a at sea of the carcass. The reduction of over 80% in the last 20 shark is usually still alive years. You don’t have to be a genius to when it is tossed back into figure out that spells extinction, and in the water. Since it can’t case you haven’t heard, extinction lasts swim, the shark slowly sinks forever! toward the bottom where it may be eaten alive by other fish. Shark finning takes place at sea on boats so the fishers have only the fins to transport. Shark meat is low Don’t order shark fin soup! Talk to value so it’s not worth the your friends about shark fin soup cost of transporting the bulky bodies to market. and remember: Friends don't let friends eat shark fin soup! One pound of dried shark fin can sell for $300 or more. If local communities realize that they The fins are then dried to be can make more money by sold in markets to individuals conserving sharks than by killing and restaurants, and sold to them, then we will ensure the the public for as much as survival of sharks. If you are $350 per bowl! The shark considering a holiday in a location fins don't even add any flavor to the soup. Chicken or where there are sharks, you might pork are used to flavor, the want to go shark diving. -
Herring Milt and Herring Milt Protein Hydrolysate Are Equally Effective In
marine drugs Article Herring Milt and Herring Milt Protein Hydrolysate Are Equally Effective in Improving Insulin Sensitivity and Pancreatic Beta-Cell Function in Diet-Induced Obese- and Insulin-Resistant Mice Yanwen Wang 1,2,* , Sandhya Nair 1,3 and Jacques Gagnon 3,4,* 1 Aquatic and Crop Resource Development Research Center, National Research Council of Canada, Charlottetown, PE C1A 4P3, Canada; [email protected] 2 Department of Biomedical Sciences, University of Prince Edward Island, Charlottetown, PE C1A 4P3, Canada 3 VALORES¯ Research Institute, Shippagan, NB E8S 1J2, Canada 4 Department of Sciences, Shippagan Campus, University of Moncton, Shippagan, NB E8S 1P6, Canada * Correspondence: [email protected] (Y.W.); [email protected] (J.G.) Received: 24 October 2020; Accepted: 8 December 2020; Published: 11 December 2020 Abstract: Although genetic predisposition influences the onset and progression of insulin resistance and diabetes, dietary nutrients are critical. In general, protein is beneficial relative to carbohydrate and fat but dependent on protein source. Our recent study demonstrated that 70% replacement of dietary casein protein with the equivalent quantity of protein derived from herring milt protein hydrolysate (HMPH; herring milt with proteins being enzymatically hydrolyzed) significantly improved insulin resistance and glucose homeostasis in high-fat diet-induced obese mice. As production of protein hydrolysate increases the cost of the product, it is important to determine whether a simply dried and ground herring milt product possesses similar benefits. Therefore, the current study was conducted to investigate the effect of herring milt dry powder (HMDP) on glucose control and the associated metabolic phenotypes and further to compare its efficacy with HMPH.