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Sturgeon Chub (Macrhybopsis Gelida): a Technical Conservation Assessment
Sturgeon Chub (Macrhybopsis gelida): A Technical Conservation Assessment Prepared for the USDA Forest Service, Rocky Mountain Region, Species Conservation Project August 31, 2004 Frank J. Rahel and Laura A. Thel Department of Zoology and Physiology University of Wyoming, Laramie, Wyoming 82071 Peer Review Administered by American Fisheries Society Rahel, F.J. and L.A. Thel. (2004, August 31). Sturgeon Chub (Macrhybopsis gelida): a technical conservation assessment. [Online]. USDA Forest Service, Rocky Mountain Region. Available: http://www.fs.fed.us/r2/ projects/scp/assessments/sturgeonchub.pdf [date of access]. ACKNOWLEDGEMENTS We thank biologists from Colorado, Kansas, Nebraska, South Dakota, and Wyoming, and from the national forests and national grasslands within Region 2 who provided information about sturgeon chub within their jurisdictions. We especially thank Gregory Hayward and Richard Vacirca of the USDA Forest Service for their review of this species assessment. Comments also were provided by two anonymous reviewers. David B. McDonald of the University of Wyoming provided the population demographic matrix analysis. AUTHORS’ BIOGRAPHIES Frank J. Rahel is a professor in the Department of Zoology and Physiology at the University of Wyoming where he teaches courses in fi sheries management, ichthyology, and conservation biology. His research interests are centered around fi sh ecology and the infl uence of anthropogenic disturbances on fi sh assemblages. Laura A. Thel is a graduate research assistant in the Department of Zoology and Physiology at the University of Wyoming with research interests involving stream ecology, hydrology, and landscape ecology, especially as these are related to the management of native fi shes. COVER PHOTO CREDIT Sturgeon Chub (Macrhybopsis gelida). -
IGFA Angling Rules
International Angling Rules The following angling rules have been formulated by the International Game Fish Association to promote ethical and sporting angling practices, to establish uniform regulations for the compilation of world game fish records, and to provide basic angling guidelines for use in fishing tournaments and any other group angling activities. The word “angling” is defined as catching or attempting to catch fish with a rod, reel, line, and hook as outlined in the international angling rules. There are some aspects of angling that cannot be controlled through rule making, however. Angling regulations cannot insure an outstanding performance from each fish, and world records cannot indicate the amount of difficulty in catching the fish. Captures in which the fish has not fought or has not had a chance to fight do not reflect credit on the fisherman, and only the angler can properly evaluate the degree of achievement in establishing the record. Only fish caught in accordance with IGFA international angling rules, and within the intent of these rules, will be considered for world records. Following are the rules for freshwater and saltwater fishing and a separate set of rules for fly fishing. RULES FOR FISHING IN FRESH AND SALT WATER (Also see Rules for Fly fishing) E. ROD Equipment Regulations 1. Rods must comply with sporting ethics and customs. A. LINE Considerable latitude is allowed in the choice of a rod, but rods giving 1. Monofilament, multifilament, and lead core multifilament the angler an unfair advantage will be disqualified. This rule is lines may be used. For line classes, see World Record Requirements. -
Do Some Atlantic Bluefin Tuna Skip Spawning?
SCRS/2006/088 Col. Vol. Sci. Pap. ICCAT, 60(4): 1141-1153 (2007) DO SOME ATLANTIC BLUEFIN TUNA SKIP SPAWNING? David H. Secor1 SUMMARY During the spawning season for Atlantic bluefin tuna, some adults occur outside known spawning centers, suggesting either unknown spawning regions, or fundamental errors in our current understanding of bluefin tuna reproductive schedules. Based upon recent scientific perspectives, skipped spawning (delayed maturation and non-annual spawning) is possibly prevalent in moderately long-lived marine species like bluefin tuna. In principle, skipped spawning represents a trade-off between current and future reproduction. By foregoing reproduction, an individual can incur survival and growth benefits that accrue in deferred reproduction. Across a range of species, skipped reproduction was positively correlated with longevity, but for non-sturgeon species, adults spawned at intervals at least once every two years. A range of types of skipped spawning (constant, younger, older, event skipping; and delays in first maturation) was modeled for the western Atlantic bluefin tuna population to test for their effects on the egg-production-per-recruit biological reference point (stipulated at 20% and 40%). With the exception of extreme delays in maturation, skipped spawning had relatively small effect in depressing fishing mortality (F) threshold values. This was particularly true in comparison to scenarios of a juvenile fishery (ages 4-7), which substantially depressed threshold F values. Indeed, recent F estimates for 1990-2002 western Atlantic bluefin tuna stock assessments were in excess of threshold F values when juvenile size classes were exploited. If western bluefin tuna are currently maturing at an older age than is currently assessed (i.e., 10 v. -
Ottawa: Complete List of Seafood Samples
Ottawa: complete list of seafood samples Sold as Identified as (BOLD) Common name (CFIA Mislabelled Purchase (label/menu/server) market name) location Arctic char Salverus alpirus Arctic char (Arctic char, No Restaurant char) Arctic char Salverus alpirus Arctic char (Arctic char, No Restaurant char) Arctic char Salverus alpirus Arctic char (Arctic char, No Restaurant char) Arctic char Salverus alpirus Arctic char (Arctic char, No Grocery char) Store Butterfish Lepidocybium Escolar (Escolar, Snake Yes Restaurant flavobrunneum Mackerel) Cod, Fogo Island Gadus morhua Atlantic cod (Atlantic cod, No Restaurant cod) Cod, Atlantic Gadus morhua Atlantic cod (Atlantic cod, No Restaurant cod) Cod, Icelandic Gadus morhua Atlantic cod (Atlantic cod, No Restaurant cod) Cod, Atlantic Gadus morhua Atlantic cod (Atlantic cod, No Restaurant cod) (food truck) Cod, Atlantic Gadus macrocephalus Pacific cod (Pacific cod, cod) Yes Restaurant Cod, Pacific Micromesistius australis Southern blue whiting Yes Restaurant (Southern blue whiting, Blue whiting, Blue cod) Cod, Norwegian Gadus morhua Atlantic cod (Atlantic cod, No Restaurant cod) Cod, Atlantic Gadus morhua Atlantic cod (Atlantic cod, No Restaurant cod) Cod, Atlantic Gadus morhua Atlantic cod (Atlantic cod, No Restaurant cod) Cod, Alaskan Gadus macrocephalus Pacific cod (Pacific cod, cod) No Grocery Store Cod, Pacific Gadus macrocephalus Pacific cod (Pacific cod, cod) No Grocery Store Cod, North Atlantic Gadus macrocephalus Pacific cod (Pacific cod, cod) Yes Restaurant Cod Gadus macrocephalus Pacific cod (Pacific cod, cod) No Grocery Store Cod, Icelandic Gadus morhua Atlantic cod (Atlantic cod, No Grocery cod) Store Cod, Icelandic Gadus morhua Atlantic cod (Atlantic cod, No Grocery cod) Store Euro Bass Gadus morhua Atlantic cod (Atlantic cod, Yes Restaurant cod) Grouper Epinephelus diacanthus Spinycheek grouper (n/a) Yes – E. -
A Preliminary Study on the Stomach Content of Southern Bluefin Tuna Thunnus Maccoyii Caught by Taiwanese Longliner in the Central Indian Ocean
CCSBT-ESC/0509/35 A preliminary study on the stomach content of southern bluefin tuna Thunnus maccoyii caught by Taiwanese longliner in the central Indian Ocean Kwang-Ming Liu1, Wei-Ke Chen2, Shoou-Jeng Joung2, and Sui-Kai Chang3 1. Institute of Marine Resource Management, National Taiwan Ocean University, Keelung, Taiwan. 2. Department of Environmental Biology and Fisheries Science, National Taiwan Ocean University, Keelung, Taiwan. 3. Fisheries Agency, Council of Agriculture, Taipei, Taiwan. Abstract The stomach contents of 63 southern bluefin tuna captured by Taiwanese longliners in central Indian Ocean in August 2004 were examined. The size of tunas ranged from 84-187 cm FL (12-115 kg GG). The length and weight frequency distributions indicated that most specimens were in the range of 100-130 cm FL with a body weight between 10 and 30 kg for both sexes. The sexes- combined relationship between dressed weight and fork length can be described by W = 6.975× 10-6× FL3.1765 (n=56, r2=0.967, p < 0.05). The subjective index of fullness of specimens was estimated as: 1 = empty (38.6%), 2 = <half full (47.37%), 3 = half full (3.51%), 4 = >half full (5.26%), and 5 = full (5.26%). For the stomachs with prey items, almost all the preys are pisces and the proportion of each prey groups are fishes (95.6%), cephalopods (2.05%), and crustaceans (0.02%). In total, 6 prey taxa were identified – 4 species of fish, 1 unidentified pisces, 1 unidentified crustacean, and 1 unidentified squid. The 4 fish species fall in the family of Carangidae, Clupeidae, Emmelichthyidae, and Hemiramphidae. -
Myxosporea: Ceratomyxidae) to Encompass Freshwater Species C
Erection of Ceratonova n. gen. (Myxosporea: Ceratomyxidae) to Encompass Freshwater Species C. gasterostea n. sp. from Threespine Stickleback (Gasterosteus aculeatus) and C. shasta n. comb. from Salmonid Fishes Atkinson, S. D., Foott, J. S., & Bartholomew, J. L. (2014). Erection of Ceratonova n. gen.(Myxosporea: Ceratomyxidae) to Encompass Freshwater Species C. gasterostea n. sp. from Threespine Stickleback (Gasterosteus aculeatus) and C. shasta n. comb. from Salmonid Fishes. Journal of Parasitology, 100(5), 640-645. doi:10.1645/13-434.1 10.1645/13-434.1 American Society of Parasitologists Accepted Manuscript http://cdss.library.oregonstate.edu/sa-termsofuse Manuscript Click here to download Manuscript: 13-434R1 AP doc 4-21-14.doc RH: ATKINSON ET AL. – CERATONOVA GASTEROSTEA N. GEN. N. SP. ERECTION OF CERATONOVA N. GEN. (MYXOSPOREA: CERATOMYXIDAE) TO ENCOMPASS FRESHWATER SPECIES C. GASTEROSTEA N. SP. FROM THREESPINE STICKLEBACK (GASTEROSTEUS ACULEATUS) AND C. SHASTA N. COMB. FROM SALMONID FISHES S. D. Atkinson, J. S. Foott*, and J. L. Bartholomew Department of Microbiology, Oregon State University, Nash Hall 220, Corvallis, Oregon 97331. Correspondence should be sent to: [email protected] ABSTRACT: Ceratonova gasterostea n. gen. n. sp. is described from the intestine of freshwater Gasterosteus aculeatus L. from the Klamath River, California. Myxospores are arcuate, 22.4 +/- 2.6 µm thick, 5.2 +/- 0.4 µm long, posterior angle 45 +/- 24°, with 2 sub-spherical polar capsules, diameter 2.3 +/- 0.2 µm, which lie adjacent to the suture. Its ribosomal small subunit sequence was most similar to an intestinal parasite of salmonid fishes, Ceratomyxa shasta (97%, 1,671/1,692 nt), and distinct from all other Ceratomyxa species (<85%), which are typically coelozoic parasites in the gall bladder or urinary system of marine fishes. -
Monitoring Endangered Atlantic Sturgeon and Commercial Finfish Habitat Use in the New York Lease Area
OCS Study BOEM 2019-074 Monitoring Endangered Atlantic Sturgeon and Commercial Finfish Habitat Use in the New York Lease Area US Department of the Interior Bureau of Ocean Energy Management Office of Renewable Energy Programs OCS Study BOEM 2019-074 Monitoring Endangered Atlantic Sturgeon and Commercial Finfish Habitat Use in the New York Lease Area June 2019 Authors: Michael G. Frisk, Professor School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, New York 11794. Evan C. Ingram, Graduate Student School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, New York 11794. Keith Dunton, Assistant Professor Department of Biology, Monmouth University, 400 Cedar Avenue, West Long Branch, New Jersey 07764. Prepared under Cooperative Agreement M16AC00003 US Department of the Interior Bureau of Ocean Energy Management Office of Renewable Energy Programs DISCLAIMER Study collaboration and funding were provided by the US Department of the Interior, Bureau of Ocean Energy Management (BOEM), Environmental Studies Program, Washington, DC, under Agreement Number M16AC00003. This report has been technically reviewed by BOEM, and it has been approved for publication. The views and conclusions contained in this document are those of the authors and should not be interpreted as representing the opinions or policies of the US Government, nor does mention of trade names or commercial products constitute endorsement or recommendation for use. This project was funded by both BOEM and the New York State Department of Environmental Conservation (NYSDEC). REPORT AVAILABILITY To download a PDF file of this report, go to the US Department of the Interior, Bureau of Ocean Energy Management Data and Information Systems webpage (http://www.boem.gov/Environmental-Studies- EnvData/), click on the link for the Environmental Studies Program Information System (ESPIS), and search on 2019-074. -
Review of Potential Impacts of Atlantic Salmon Culture on Puget Sound Chinook Salmon and Hood Canal Summer-Run Chum Salmon Evolutionarily Significant Units
NOAA Technical Memorandum NMFS-NWFSC-53 Review of Potential Impacts of Atlantic Salmon Culture on Puget Sound Chinook Salmon and Hood Canal Summer-Run Chum Salmon Evolutionarily Significant Units June 2002 U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Marine Fisheries Service NOAA Technical Memorandum NMFS Series The Northwest Fisheries Science Center of the Na tional Marine Fisheries Service, NOAA, uses the NOAA Technical Memorandum NMFS series to issue informal scientific and technical publications when complete formal review and editorial processing are not appropriate or feasible due to time constraints. Documents published in this series may be referenced in the scientific and technical literature. The NMFS-NWFSC Technical Memorandum series of the Northwest Fisheries Science Center continues the NMFS-F/NWC series established in 1970 by the Northwest & Alaska Fisheries Science Center, which has since been split into the Northwest Fisheries Science Center and the Alaska Fisheries Science Center. The NMFS-AFSC Technical Memorandum series is now being used by the Alaska Fisheries Science Center. Reference throughout this document to trade names does not imply endorsement by the National Marine Fisheries Service, NOAA. This document should be cited as follows: Waknitz, F.W., T.J. Tynan, C.E. Nash, R.N. Iwamoto, and L.G. Rutter. 2002. Review of potential impacts of Atlantic salmon culture on Puget Sound chinook salmon and Hood Canal summer-run chum salmon evolutionarily significant units. U.S. Dept. Commer., NOAA Tech. Memo. NMFS-NWFSC-53, 83 p. NOAA Technical Memorandum NMFS-NWFSC-53 Review of Potential Impacts of Atlantic Salmon Culture on Puget Sound Chinook Salmon and Hood Canal Summer-Run Chum Salmon Evolutionarily Significant Units F. -
Overview of the Impacts of Introduced Salmonids on Australian Native Fauna
OVERVIEW OF THE IMPACTS OF INTRODUCED SALMONIDS ON AUSTRALIAN NATIVE FAUNA by P. L. Cadwallader prepared for the Australian Nature Conservation Agency 1996 ~~ AUSTRALIA,,) Overview of the Impacts of Introduced Salmonids on Australian Native Fauna by P L Cadwallader The views and opinions expressed in this report are those of the authors and do not necessarily reflect those of the Commonwealth Government, the Minister for the Environment or the Director of National Parks and Wildlife. ISBN 0 642 21380 1 Published May 1996 © Copyright The Director of National Parks and Wildlife Australian Nature Conservation Agency GPO Box 636 Canberra ACT 2601 Design and art production by BPD Graphic Associates, Canberra Cover illustration by Karina Hansen McInnes CONTENTS FOREWORD 1 SUMMARY 2 ACKNOWLEDGMENTS 3 1. INTRODUCTION 5 2. SPECIES OF SALMONIDAE IN AUSTRALIA 7 2.1 Brown trout 7 2.2 Rainbow trout 8 2.3 Brook trout 9 2.4 Atlantic salmon 9 2.5 Chinook salmon 10 2.6 Summary of present status of salmonids in Australia 11 3. REVIEW OF STUDIES ON THE IMPACTS OF SALMONIDS 13 3.1 Studies on or relating to distributions of salmonids and native fish 13 Grey (1929) Whitley (1935) Williams (1964) Fish (1966) Frankenberg (1966, 1969) Renowden (1968) Andrews (1976) Knott et at. (1976) Cadwallader (1979) Jackson and Williams (1980) Jackson and Davies (1983) Koehn (1986) Jones et al. (1990) Lintermans and Rutzou (1990) Minns (1990) Sanger and F ulton (1991) Sloane and French (1991) Shirley (1991) Townsend and Growl (1991) Hamr (1992) Ault and White (1994) McIntosh et al. (1994) Other Observations and Comments 3.2 Studies Undertaken During the Invasion of New Areas by Salmonids 21 Tilzey (1976) Raadik (1993) Gloss and Lake (in prep) 3.3 Experimental Introduction study 23 Fletcher (1978) 3.4 Feeding Studies, Including Analysis of Dietary Overlap and Competition, and Predation 25 Introductory Comments Morrissy (1967) Cadwallader (1975) Jackson (1978) Cadwallader and Eden (1981,_ 1982) Sagar and Eldon (1983) Glova (1990) Glova and Sagar (1991) Kusabs and Swales (1991) Crowl et at. -
Oncorhynchus Mykiss) (Salmoniformes: Salmonidae) Diet in Hawaiian Streams1
Pacific Science (1999), vol. 53, no. 3: 242-251 © 1999 by University of Hawai'i Press. All rights reserved Alien Rainbow Trout (Oncorhynchus mykiss) (Salmoniformes: Salmonidae) Diet in Hawaiian Streams1 MICHAEL H. KIDO,2 DONALD E. HEACOCK,3 AND ADAM ASQUITH4 ABSTRACT: Diet of rainbow trout, Oncorhynchus mykiss (Walbaum), intro duced by the State of Hawai'i into tropical headwater streams of the Waimea River in the Koke'e area ofthe Hawaiian island ofKaua'i, was examined in this study through gut content analysis. In Wai'alae Stream, rainbow trout were found to be opportunistic general predators efficient at feeding on invertebrate drift. Foods eaten ranged from juvenile trout, to terrestrial and aquatic arthro pods, to algae and aquatic mosses. Native aquatic species, particularly dragonfly (Anax strennus) and damselfly (Megalagrion heterogamias) naiads, lyrnnaeid snails (Erinna aulacospira), and atyid shrimp (Atyoida bisulcata), were deter mined to be major foods for alien trout. Terrestrial invertebrates (primarily ar thropods), however, provided a substantial (albeit unpredictable) additional food supply. Based on results of the study, it is cautioned that large numbers of rainbow trout indiscriminantly released into lower- to middle-elevation reaches ofHawaiian streams could do substantial damage to populations ofna tive aquatic species through predation, competition, and/or habitat alteration. RAINBOW TROUT, Oncorhynchus mykiss the high-elevation (ca. 3500 ft [1067 m]) Ko (Walbaum), along with several other Salmo ke'e area of Kaua'i Island (Figure I) (Need niformes (Salmonidae), were introduced into ham and Welsh 1953). By 1941, only Koke'e Hawaiian Island streams early in the century streams were being stocked. -
Atlantic Salmon Critical Habitat
Endangered Species Act and FERC Hydroelectric Projects Jeff Murphy & Julie Crocker NHA New England Meeting November 16, 2010 Shortnose Sturgeon • Federally listed as endangered in 1967 • Listed under the sole jurisdiction of NOAA Fisheries • 19 Populations occur along the East Coast Shortnose sturgeon in New England… • Maine – Penobscot River, Kennebec/Sheepscot/Androscoggin complex, Saco River • Massachusetts – Merrimack River, Connecticut River Shortnose Sturgeon & Hydroelectric Projects Challenges Shortnose sturgeon typically spawn near the fall line – often at the base of a dam where operations can affect the suitability of spawning habitat, affect the movements of adults or viability of eggs and larvae Upstream Passage – Sturgeon don’t negotiate ladders well and have limited success entering fish lifts Downstream Passage – Shortnose sturgeon make downstream movements as yearlings and adults (large variability in size) and can be vulnerable to impingement at relatively low velocities Stranding - vulnerable to low dissolved oxygen and high temperatures that can occur in isolated pools Atlantic Sturgeon Proposed Listing Rule published October 6, 2010 Public comment period open until January 4, 2011 NOAA Fisheries has 1 year to publish a final rule There is no prohibition on “take” of proposed species, but the conference provisions of the ESA apply Atlantic Sturgeon Proposed Listing Proposal to list 5 Distinct Population Segments – Gulf of Maine (threatened); New York Bight (endangered); Chesapeake Bay (endangered); Carolina (endangered); and, South Atlantic (endangered) Gulf of Maine DPS of Atlantic Salmon Atlantic salmon in the Gulf of Maine (GOM) Distinct Population Segment (DPS) is jointly listed by NOAA’s National Marine Fisheries Service (NMFS) and the U.S. -
German Market Analysis and IUU Assessment
German Market Analysis and IUU Assessment WWF Germany [80101064/#15007/jw] Phase 1 Report Final July 2015 Submitted by MRAG Ltd is an independent fisheries and aquatic resource consulting company dedicated to the sustainable use of natural resources through sound, integrated management practices and policies. Established in 1986, MRAG has successfully completed projects in more than 60 countries. Our in-house experts have a wide variety of technical expertise and practical experience across all aspects of aquatic resource management, policy and planning, allowing us to take a multi-disciplinary approach to every project. Our capability to service an extensive array of resource management needs is further extended through our network of associations with internationally acclaimed experts in academic institutions and private organisations worldwide. MRAG Ltd 18 Queen Street T: +44 (0) 20 7255 7755 London F: +44 (0) 20 7499 5388 W1J 5PN W: www.mrag.co.uk United Kingdom E: [email protected] Contents Tables ....................................................................................................................... iii Figures ..................................................................................................................... iii Abbreviations .......................................................................................................... iv 1 Introduction ........................................................................................................ 1 2 Review of German Market Study .....................................................................