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Sturgeons of the Caspian Sea and Ural River
Photo and image credits: Front Cover: Top left, beluga sturgeon (Huso huso); Top Right: Russian sturgeon (Acipenser gueldenstaedtii); Bottom: stellate sturgeon (Acipenser stellatus); Todd Stailey, Tennessee Aquarium. Back Cover: “FISH IS OUR TREASURE”, Phaedra Doukakis, Ph. D. IOCS; Page 1: Shannon Crownover, The Nature Conservancy; Page 6, 9, 10, 11: Phaedra Doukakis, Ph. D., IOCS; Page 4, 5, 7 designed by Grace Lewis. Brochure content was developed by Alison Ormsby, Ph.D. and Phaedra Doukakis, Ph. D. with editorial review by Yael Wyner, Ph. D. Layout was designed by Grace Lewis. The brochure was developed under a generous grant from Agip KCO. Agip KCO Tel.: international line: 1, K. Smagulov Street +39 02 9138 3300 Atyrau, 06002 Tel: local lines: Republic of Kazakhstan (+7) 7122 92 3300 Fax: (+7) 7122 92 3310 Designed and printed in Kazakhstan www.agipkco.com Sturgeons of the Caspian Sea and Ural River www.oceanconservationscience.org A Unique and Precious Resource What are Sturgeon? River, other rivers off the Caspian Sea are used by sturgeons for With bony plates called scutes on their bodies and ancestors that reproduction, including the Volga River in Russia and the Kura date to the time of dinosaurs, sturgeons are unusual fish. Unlike River in Azerbaijan. However, dams on the Volga and Kura have other types of fish, sturgeons have scutes instead of scales. blocked sturgeons from being able to migrate upriver, and have changed the quality of the rivers so they are no longer able to support sturgeon reproduction. Reproduction: For sturgeon, the process of mixing female eggs and male sperm to create a fertilized egg that hatches into a baby sturgeon. -
Pan-European Action Plan for Sturgeons
Strasbourg, 30 November 2018 T-PVS/Inf(2018)6 [Inf06e_2018.docx] CONVENTION ON THE CONSERVATION OF EUROPEAN WILDLIFE AND NATURAL HABITATS Standing Committee 38th meeting Strasbourg, 27-30 November 2018 PAN-EUROPEAN ACTION PLAN FOR STURGEONS Document prepared by the World Sturgeon Conservation Society and WWF This document will not be distributed at the meeting. Please bring this copy. Ce document ne sera plus distribué en réunion. Prière de vous munir de cet exemplaire. T-PVS/Inf(2018)6 - 2 - Pan-European Action Plan for Sturgeons Multi Species Action Plan for the: Russian sturgeon complex (Acipenser gueldenstaedtii, A. persicus-colchicus), Adriatic sturgeon (Acipenser naccarii), Ship sturgeon (Acipenser nudiventris), Atlantic/Baltic sturgeon, (Acipenser oxyrinchus), Sterlet (Acipenser ruthenus), Stellate sturgeon (Acipenser stellatus), European/Common sturgeon (Acipenser sturio), and Beluga (Huso huso). Geographical Scope: European Union and neighbouring countries with shared basins such as the Black Sea, Mediterranean, North Eastern Atlantic Ocean, North Sea and Baltic Sea Intended Lifespan of Plan: 2019 – 2029 Russian Sturgeon Adriatic Sturgeon Ship Sturgeon Atlantic or Baltic complex Sturgeon Sterlet Stellate Sturgeon Beluga European/Common Sturgeon © M. Roggo f. A. sturio; © Thomas Friedrich for all others Supported by - 3 - T-PVS/Inf(2018)6 GEOGRAPHICAL SCOPE: The Action Plan in general addresses the entire Bern Convention scope (51 Contracting Parties, including the European Union) and in particular the countries with shared sturgeon waters in Europe. As such, it focuses primarily on the sea basins in Europe: Black Sea, Mediterranean, North-East Atlantic, North Sea, Baltic Sea, and the main rivers with relevant current or historic sturgeon populations (see Table 2). -
Saving Europe's Sturgeons
A matter of Sturgeon Life Cycle WORKING TOGETHER A typical life cycle of migrating sturgeons TO PROTECT URGENCY & STURGEONS showing adverse impacts on the various life cycle phases. Today illegal fishing, W S blockage of migration routes and C S degradation of spawning habitats Hydropower development, • S must be considered as the main poaching, illegal trade A factors for continued decline. V I N G Saving Europe’s Sturgeons E A U E R Marine by-catch, S Infrastructure, O Due to overharvest and habitat loss sturgeons are considered the most endangered group of IUU eturn to waterway development P R E species on earth! Today eight species of sturgeon still exist on the European continent while spawning ’ site s S their status is highly critical. The Pan-European Sturgeon Action Plan* provides a framework T U R for urgently needed recovery measures. Sturgeons need to migrate between rivers and seas G E and are crossing many national borders during their lives, therefore they represent a flagship O N S species for free flowing rivers and healthy, well managed marine ecosystems. Sturgeon recovery cannot be achieved by single countries, but it is a true European responsibility. Water abstraction, Pollution, dredging, hydropower, fisheries flood protection It is time for action! Otherwise Europe will lose these species forever WHAT NEEDS TO BE DONE according to the Action Plan until 2029 ILLUSTRATIONS: © A. GUBIG 1 Urgently stop the decline of 4 Secure or facilitate sturgeon Land use, remaining populations! migration! alien species By prohibiting -
NORTHERN GREEN STURGEON Acipenser Medirostris (Ayres)
NORTHERN GREEN STURGEON Acipenser medirostris (Ayres) Status: High Concern. Very little is known about the current size of the single northern green sturgeon population in California. However, habitat degradation and climate change continue to threaten their status. Description: Sturgeons, with their large size, subterminal barbeled mouths, lines of bony plates (scutes), and heterocercal (shark-like) tail, are among the most distinctive of freshwater fishes. Green sturgeon have 8-11 scutes in the dorsal row, 23-30 in the lateral rows, and 7-10 in the bottom rows. The dorsal fin has 33-36 rays, and the anal fin 22-28. They are distinguished from white sturgeon, with which they co-occur, by: (1) having one large scute behind the dorsal and anal fins, (2) having scutes that are sharp and pointed, and (3) having barbels that are closer to the mouth than to the tip of the long, narrow snout (Moyle 2002). Their color is olive-green to pale brown, with an olivaceous stripe on each side and scutes that are paler than the body. Taxonomic Relationships: Green sturgeon were described from San Francisco Bay in 1854 by W. O. Ayres as Acipenser medirostris, the only one of three species he described from the Bay that is still recognized. Green sturgeon are tetraploids and have lower fecundity and larger eggs than most other sturgeon (Gessner et al. 2007). The zoogeographic origin of green sturgeon is uncertain; evidence can be mounted for either an Asian or North American ancestry (Artyukhin et al. 2007). The closest relative is the Asian green sturgeon, Acipenser mikadoi, described from one poorly preserved specimen (Jordan and Snyder 1906). -
Iucn Red Data List Information on Species Listed On, and Covered by Cms Appendices
UNEP/CMS/ScC-SC4/Doc.8/Rev.1/Annex 1 ANNEX 1 IUCN RED DATA LIST INFORMATION ON SPECIES LISTED ON, AND COVERED BY CMS APPENDICES Content General Information ................................................................................................................................................................................................................................ 2 Species in Appendix I ............................................................................................................................................................................................................................... 3 Mammalia ............................................................................................................................................................................................................................................ 4 Aves ...................................................................................................................................................................................................................................................... 7 Reptilia ............................................................................................................................................................................................................................................... 12 Pisces ................................................................................................................................................................................................................................................. -
The Key Threats to Sturgeons and Measures for Their Protection in the Lower Danube Region
THE KEY THREATS TO STURGEONS AND MEASURES FOR THEIR PROTECTION IN THE LOWER DANUBE REGION MIRJANA LENHARDT* Institute for Biological Research, Serbia IVAN JARIĆ, GORČIN CVIJANOVIĆ AND MARIJA SMEDEREVAC-LALIĆ Center for Multidisciplinary Studies, Serbia Abstract The six native sturgeon species have been commercially harvested in the Danube Basin for more than 2,000 years, with rapid decrease in catch by mid 19th century. Addi- tional negative effect on sturgeon populations in the Danube River was river regulation in Djerdap region, due to navigation in the late 19th century, as well as dam construction in the second half of 20th century that blocked sturgeon spawning migrations. Beside over- fishing and habitat loss, illegal trade, life history characteristics of sturgeon, lack of effective management (due to lack of transboundary cooperation and change in political situa- tion in Lower Danube Region countries) and pollution all pose serious threats on sturgeon populations in Lower Danube Region. International measures established by the Conven- tion on International Trade in Endangered Species (CITES) in late 20th century, listing of beluga (Huso huso) as an endangered species under the U.S. Endangered Species Act, as well as development of Action plan for conservation of sturgeons in the Danube River Basin, had significant impact on activities related to sturgeon protection at beginning of 21st century. These actions were aimed towards diminishment of pressure on natural sturgeon populations and aquaculture development in countries of Lower Danube Region. The main goal of the Action Plan was to raise public awareness and to create a common framework for implementation of urgent measures. -
2012 Wildearth Guardians and Friends of Animals Petition to List
PETITION TO LIST Fifteen Species of Sturgeon UNDER THE U.S. ENDANGERED SPECIES ACT Submitted to the U.S. Secretary of Commerce, Acting through the National Oceanic and Atmospheric Administration and the National Marine Fisheries Service March 8, 2012 Petitioners WildEarth Guardians Friends of Animals 1536 Wynkoop Street, Suite 301 777 Post Road, Suite 205 Denver, Colorado 80202 Darien, Connecticut 06820 303.573.4898 203.656.1522 INTRODUCTION WildEarth Guardians and Friends of Animals hereby petitions the Secretary of Commerce, acting through the National Marine Fisheries Service (NMFS)1 and the National Oceanic and Atmospheric Administration (NOAA) (hereinafter referred as the Secretary), to list fifteen critically endangered sturgeon species as “threatened” or “endangered” under the Endangered Species Act (ESA) (16 U.S.C. § 1531 et seq.). The fifteen petitioned sturgeon species, grouped by geographic region, are: I. Western Europe (1) Acipenser naccarii (Adriatic Sturgeon) (2) Acipenser sturio (Atlantic Sturgeon/Baltic Sturgeon/Common Sturgeon) II. Caspian Sea/Black Sea/Sea of Azov (3) Acipenser gueldenstaedtii (Russian Sturgeon) (4) Acipenser nudiventris (Ship Sturgeon/Bastard Sturgeon/Fringebarbel Sturgeon/Spiny Sturgeon/Thorn Sturgeon) (5) Acipenser persicus (Persian Sturgeon) (6) Acipenser stellatus (Stellate Sturgeon/Star Sturgeon) III. Aral Sea and Tributaries (endemics) (7) Pseudoscaphirhynchus fedtschenkoi (Syr-darya Shovelnose Sturgeon/Syr Darya Sturgeon) (8) Pseudoscaphirhynchus hermanni (Dwarf Sturgeon/Little Amu-Darya Shovelnose/Little Shovelnose Sturgeon/Small Amu-dar Shovelnose Sturgeon) (9) Pseudoscaphirhynchus kaufmanni (False Shovelnose Sturgeon/Amu Darya Shovelnose Sturgeon/Amu Darya Sturgeon/Big Amu Darya Shovelnose/Large Amu-dar Shovelnose Sturgeon/Shovelfish) IV. Amur River Basin/Sea of Japan/Sea of Okhotsk (10) Acipenser mikadoi (Sakhalin Sturgeon) (11) Acipenser schrenckii (Amur Sturgeon) (12) Huso dauricus (Kaluga) V. -
UNIVERSITA' DI BOLOGNA SCUOLA DI SCIENZE Corso Di Laurea Magistrale in BIOLOGIA MARINA Reproduction and Artificial Restocking Of
UNIVERSITA' DI BOLOGNA SCUOLA DI SCIENZE Corso di Laurea Magistrale in BIOLOGIA MARINA Reproduction and artificial restocking of Acipenser naccarii (Bonaparte, 1836). Genetic and physiological characterization through microsatellite markers and radioimmunoassay of sexual steroids Tesi di laurea in Genetica e Biotecnologie in Acquacoltura Relatore Presentata da Dott.ssa Ilaria Guarniero Giulia Pastore Correlatore Dott.ssa Michaela Mandelli III sessione Anno Accademico 2013/2014 ABSTRACT The Adriatic sturgeon, Acipenser naccarii (Bonaparte, 1836), is a highly threatened species due to human activities, particularly overfishing and habitat destruction. Its peculiar ecology and biology (restricted areal and anadromy) makes this species particularly vulnerable. In March 2010 the IUCN has identified the Adriatic sturgeon as a critically endangered species according to the Red List of Threatened Species. Due to its rapid decline, starting from the 80s, at present there is no evidence of natural reproduction in wild environment, which makes the Adriatic sturgeon dependent on captive breeding programs that need to be improved in order to be effective for the survival of the species. For this purpose this study aims to characterize artificial restocking population of Adriatic sturgeon, with both genetic and physiological analysis in order to establish an efficient restocking program for future reproductions. The research is structured on two levels: First genetically, by analyzing 9 microsatellite loci. This gives information relatively about parent allocation and kinship between individuals that were sampled for this study. Hence to predict which reproduction events are the most optimal in terms of incrementing genetic diversity, by the estimation of multilocus pairwise band sharing coefficients. Second step, physiological analysis: testosterone (T) concentration levels in each individual were measured for sexing, without sacrificing the lives of the animals with the use of an invasive examination of the gonads. -
Species and Subject Index*
Species and subject index* 12SrDNA(mitochondrialgene) 141-144 life history 324-328, 331-332, 348-353 Acipenser gueldenstaedtii (Russian sturgeon) I6S rDNA(mitochondrial gene) 141-144 in MerrimackRiver 324-325 208, 220 I8SrDNA(nucleargene) 141-142, 146 migration323-325,328-330,349, in the Caspian Sea 209, 214 Acipenser 351-353 in the Danube River 185,193, 208 biogeography 41, 43, 128, 158, 169, palatquadrate shape 47 fishery 193,210,214 174 inthe PeeDeeRiver 323, 330 reproduction 214–215 in the Caspian Sea 215-216 phylogeny 45 status 203, 206 feedingadaptations 119 population size321-323, 330 taxonomy 158 fossil forms 174 in the Potomac River 322 in the Volga River 209, 214–215 locomotion adaptation 121 predation on 331 Acipenser kikuchii (=A. sinensis), taxonomy molecular phylogeny 147-148 quadratojugal bone 47 159 molecular variation in 159 reproduction 324-327, 352-353 Acipenser medirostris (green sturgeon) morphological characters 78, 81, 83, in the Saint John River 322, 324-325, fishery 412 86-7.89-91.93.95-6,99, 101, 104, 331 spawning rivers169 106-7,114-6 inthe Santee-Cooper River323-324 systematics 41 osteological methods 77 in the Savannah River 322-324, 330 taxonomy158 -159 phylogeny 43, 64, 116, 128, 145, spawning 324-326, 328-331, 350, 352 in the Tumnin River 158 147-149, 171, 180 status 319,322,356 Acipensermikadoi (Sakhalin sturgeon) 406 polyploidy in 136 stocking 323 in the Amur River 231–232 range31 inthe SusquehannaRiver 322 spawningrivers 169 rostralexpansion 120 taxonomy 159 systematics41 speciation 128, 148 Acipenser dabryanus (Dabry’s sturgeon) taxonomy 158 systematics 26, 39, 41-44, 147 artificial reproduction 262 Acipenser multiscutatus (=A. -
Yangtze Sturgeon (Acipenser Dabryanus) - Sturgeons
Pond Life - Yangtze Sturgeon (Acipenser dabryanus) - Sturgeons http://www.pond-life.me.uk/sturgeon/acipenserdabryanus.php Search Pond Life... Home Sturgeons Koi Other Fish Fish Health Ponds Plants Forums Contents Yangtze Sturgeon (Acipenser dabryanus) Home Sturgeons Acipenseriformes Sturgeon Food & Feeding Sturgeon Care Sheet Sturgeon Guide Sturgeon Species List Adriatic Sturgeon Alabama Sturgeon Amu Darya Sturgeon Amur Sturgeon Atlantic Sturgeon Beluga Sturgeon Chinese Paddlefish Chinese Sturgeon Yangtze Sturgeon (Acipenser dabryanus) photo from the website of CAFS Common Sturgeon (http://zzzy.fishinfo.cn/) Diamond Sturgeon Dwarf Sturgeon by Karen Paul Green Sturgeon Description: The Yangtze Sturgeon (Acipenser dabryanus) has 8-13 dorsal scutes, 26-39 lateral Gulf Sturgeon scutes, 9-13 ventral scutes, 44-57 dorsal fin rays and 25-36 anal fin rays. Colouration ranges from Kaluga Sturgeon dark grey to brown-grey on the back to white on the ventral side. The body is rough because it is Lake Sturgeon covered with small pointed denticles. The four barbels are located closer to the mouth than the end Paddlefish of the snout. The Yangtze Sturgeon can reach 1.3 meters in length and a weight of 16kg. Pallid Sturgeon Persian Sturgeon Sakhalin Sturgeon Ship Sturgeon Shortnose Sturgeon Shovelnose Sturgeon Siberian Sturgeon Stellate Sturgeon Sterlet Syr Darya Sturgeon White Sturgeon Yangtze Sturgeon Sturgeon Videos Koi Other Fish Fish Health Yangtze Sturgeon (Acipenser dabryanus) photo from the website of CAFS Ponds (http://zzzy.fishinfo.cn/) Plants Forums Wild Distribution: Asia; restricted to the upper and middle reaches of the Yangtze River system, Search rarely seen below the Gezhouba Dam. The Yangtze Sturgeon is a potamodromous (freshwater only) species. -
Brochure: Sturgeon Identification Guide
Andrey Nekrasov © Photo: STURGEON IDENTIFICATION GUIDE Identification of Sturgeon Species This guide was designed to support the identification of sturgeon species that can be found in the Danube and the Black Sea. It describes seven sturgeon species - one of them an exotic species popular in aquaculture - and three hybrids. The guide also offers detailed features that can be used to differentiate between the species. The primary goal of this guide is to help law enforcement officials identify sturgeon species they may encounter through their work. WHAT IS A STURGEON? Sturgeons and paddlefishes, also referred to scientifically as Acipenseriformes, are a group of ancient fish originating more than 200 million years ago. They migrate mostly in order to spawn and live in freshwater, coastal waters and seas of the Northern Hemisphere. According to the IUCN*, 23 of the 27 species are on the brink of extinction, being thus the most critically endangered group of species on Earth. *International Union for Conservation of Nature Sturgeons have quite unique features: Depending on the species, Five rows of bony scutes: Two nostrils on the snout smaller scutes can also be one row along the back, found in between the rows two along both sides, If a fish has only of the larger scutes, behind and two on the belly one nostril, it is the dorsal fin and along the most likely from anal fin, which can be a very aquaculture. important characteristic for differentiation. Four barbels in front of the © Rosen Bonov mouth, either closer to the mouth or closer to the tip of the snout Photo: A heterocercal tail, meaning Either a round or a pointed the upper lobe of the tail fin is snout with the mouth sitting longer than the lower lobe on the bottom of the head An individual from aquaculture, Austria 2018 Beluga (Huso huso) The color is steel grayish-blue With adult individuals, the side scutes are the colour of the body and number around 40-50 The mouth is very big, crescent shaped and reaches the edges of The barbels the head. -
Biodiversity Profile of Afghanistan
NEPA Biodiversity Profile of Afghanistan An Output of the National Capacity Needs Self-Assessment for Global Environment Management (NCSA) for Afghanistan June 2008 United Nations Environment Programme Post-Conflict and Disaster Management Branch First published in Kabul in 2008 by the United Nations Environment Programme. Copyright © 2008, United Nations Environment Programme. This publication may be reproduced in whole or in part and in any form for educational or non-profit purposes without special permission from the copyright holder, provided acknowledgement of the source is made. UNEP would appreciate receiving a copy of any publication that uses this publication as a source. No use of this publication may be made for resale or for any other commercial purpose whatsoever without prior permission in writing from the United Nations Environment Programme. United Nations Environment Programme Darulaman Kabul, Afghanistan Tel: +93 (0)799 382 571 E-mail: [email protected] Web: http://www.unep.org DISCLAIMER The contents of this volume do not necessarily reflect the views of UNEP, or contributory organizations. The designations employed and the presentations do not imply the expressions of any opinion whatsoever on the part of UNEP or contributory organizations concerning the legal status of any country, territory, city or area or its authority, or concerning the delimitation of its frontiers or boundaries. Unless otherwise credited, all the photos in this publication have been taken by the UNEP staff. Design and Layout: Rachel Dolores