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Parasite Communities and Feeding Ecology of the European Sprat (Sprattus Sprattus L.) Over Its Range of Distribution
Parasitol Res (2012) 110:1147–1157 DOI 10.1007/s00436-011-2605-z ORIGINAL PAPER Parasite communities and feeding ecology of the European sprat (Sprattus sprattus L.) over its range of distribution Sonja Kleinertz & Sven Klimpel & Harry W. Palm Received: 15 July 2011 /Accepted: 4 August 2011 /Published online: 18 August 2011 # Springer-Verlag 2011 Abstract The metazoan parasite fauna and feeding ecology Mollusca, Annelida, Crustacea and Tunicata. The highest of 165 Sprattus sprattus (L., 1758) was studied from number of prey organisms belonged to the crustaceans. The different geographic regions (Baltic Sea, North Sea, English variety of prey items in the stomach was reflected by the Channel, Bay of Biscay, Mediterranean Sea). A total of 13 parasite community differences and parasite species rich- metazoan parasite species were identified including six ness from the different regions. The feeding ecology of the Digenea, one Monogenea, two Cestoda, two Nematoda fish at the sampled localities was responsible for the and two Crustacea. Didymozoidae indet., Lecithocladium observed parasite composition and, secondarily, the zoo- excisum and Bomolochidae indet. represent new host geographical distribution of the parasites, questioning the records. The parasite species richness differed according use of the recorded sprat parasites as biological indicators to regions and ranged between 3 and 10. The most species- for environmental conditions and change. rich parasite fauna was recorded for sprats from the Bay of Biscay (North Atlantic), and the fishes from the Baltic Sea contained the lowest number of parasite species. More Introduction closely connected geographical regions, the North Sea, English Channel and Bay of Biscay, showed more similar Fish parasites are an integral part of every ecosystem and parasite component communities compared with more play an important role for the health of marine organisms. -
In the Kattegat and Skagerrak, Eastern North Sea
Aquat. Living Resour. 28, 127–137 (2015) Aquatic c EDP Sciences 2016 DOI: 10.1051/alr/2016007 Living www.alr-journal.org Resources Growth and maturity of sprat (Sprattus sprattus) in the Kattegat and Skagerrak, eastern North Sea Francesca Vitale1, Felix Mittermayer1,2, Birgitta Krischansson1, Marianne Johansson1 and Michele Casini1,a 1 Swedish University of Agricultural Sciences, Department of Aquatic Resources, Institute of Marine Research, 45330 Lysekil, Sweden 2 GEOMAR Helmholtz Centre for Ocean Research, Evolutionary Ecology of Marine Fishes, 24105 Kiel, Germany Received 13 July 2015; Accepted 12 February 2016 Abstract – Information on fish biology, as growth and reproduction, is an essential first step for a sound assessment and management of a fishery resource. Here we analyzed the annual cycle of body condition factor (K), gonadosomatic index (GSI) and maturity of sprat from the Skagerrak and Kattegat as well as from the Skagerrak inner fjords (Uddevalla fjords). The results show an inverse yearly pattern for K and GSI in both areas, K being the highest in autumn and lowest in spring, while the GSI index was highest in spring and lowest in autumn. The annual highest proportion of spawning fish was recorded from May to July, indicating the late spring and early summer as the main spawning period for sprat in these areas. Male sprat reached maturity at a higher size in the Uddevalla fjords compared to Skagerrak and Kattegat, while negligible differences were shown by females. The K, GSI and size-at-age were the lowest in the Uddevalla fjords, while K and GSI were the highest in the Skagerrak, potentially related to the different environmental conditions encountered in the different areas. -
IATTC-94-01 the Tuna Fishery, Stocks, and Ecosystem in the Eastern
INTER-AMERICAN TROPICAL TUNA COMMISSION 94TH MEETING Bilbao, Spain 22-26 July 2019 DOCUMENT IATTC-94-01 REPORT ON THE TUNA FISHERY, STOCKS, AND ECOSYSTEM IN THE EASTERN PACIFIC OCEAN IN 2018 A. The fishery for tunas and billfishes in the eastern Pacific Ocean ....................................................... 3 B. Yellowfin tuna ................................................................................................................................... 50 C. Skipjack tuna ..................................................................................................................................... 58 D. Bigeye tuna ........................................................................................................................................ 64 E. Pacific bluefin tuna ............................................................................................................................ 72 F. Albacore tuna .................................................................................................................................... 76 G. Swordfish ........................................................................................................................................... 82 H. Blue marlin ........................................................................................................................................ 85 I. Striped marlin .................................................................................................................................... 86 J. Sailfish -
Spawning of Bluefin Tuna in the Black Sea: Historical Evidence, Environmental Constraints and Population Plasticity
CORE Downloaded from orbit.dtu.dk on: Dec 20, 2017 Metadata, citation and similar papers at core.ac.uk Provided by Online Research Database In Technology Spawning of bluefin tuna in the black sea: historical evidence, environmental constraints and population plasticity MacKenzie, Brian; Mariani, Patrizio Published in: PLoS ONE Link to article, DOI: 10.1371/journal.pone.0039998 Publication date: 2012 Document Version Publisher's PDF, also known as Version of record Link back to DTU Orbit Citation (APA): Mackenzie, B. R., & Mariani, P. (2012). Spawning of bluefin tuna in the black sea: historical evidence, environmental constraints and population plasticity. PLoS ONE, 7(7), e39998. DOI: 10.1371/journal.pone.0039998 General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. • Users may download and print one copy of any publication from the public portal for the purpose of private study or research. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. Spawning of Bluefin Tuna in the Black Sea: Historical Evidence, -
Changing Communities of Baltic Coastal Fish Executive Summary: Assessment of Coastal fi Sh in the Baltic Sea
Baltic Sea Environment Proceedings No. 103 B Changing Communities of Baltic Coastal Fish Executive summary: Assessment of coastal fi sh in the Baltic Sea Helsinki Commission Baltic Marine Environment Protection Commission Baltic Sea Environment Proceedings No. 103 B Changing Communities of Baltic Coastal Fish Executive summary: Assessment of coastal fi sh in the Baltic Sea Helsinki Commission Baltic Marine Environment Protection Commission Editor: Janet Pawlak Authors: Kaj Ådjers (Co-ordination Organ for Baltic Reference Areas) Jan Andersson (Swedish Board of Fisheries) Magnus Appelberg (Swedish Board of Fisheries) Redik Eschbaum (Estonian Marine Institute) Ronald Fricke (State Museum of Natural History, Stuttgart, Germany) Antti Lappalainen (Finnish Game and Fisheries Research Institute), Atis Minde (Latvian Fish Resources Agency) Henn Ojaveer (Estonian Marine Institute) Wojciech Pelczarski (Sea Fisheries Institute, Poland) Rimantas Repečka (Institute of Ecology, Lithuania). Photographers: Visa Hietalahti p. cover, 7 top, 8 bottom Johnny Jensen p. 3 top, 3 bottom, 4 middle, 4 bottom, 5 top, 8 top, 9 top, 9 bottom Lauri Urho p. 4 top, 5 bottom Juhani Vaittinen p. 7 bottom Markku Varjo / LKA p. 10 top For bibliographic purposes this document should be cited as: HELCOM, 2006 Changing Communities of Baltic Coastal Fish Executive summary: Assessment of coastal fi sh in the Baltic Sea Balt. Sea Environ. Proc. No. 103 B Information included in this publication or extracts thereof is free for citing on the condition that the complete reference of the publication is given as stated above Copyright 2006 by the Baltic Marine Environment Protection Commission - Helsinki Commission - Design and layout: Bitdesign, Vantaa, Finland Printed by: Erweko Painotuote Oy, Finland ISSN 0357-2994 Coastal fi sh – a combination of freshwater and marine species Coastal fish communities are important components of Baltic Sea ecosystems. -
Sprat Sprattus Sprattus Max Size: 16 Cm Family Clupeidae Max Age: 5 Years
Sprat Sprattus sprattus Max size: 16 cm Family Clupeidae Max age: 5 years Introduction Taxonomy: European sprat Sprattus sprattus (Linnaeus, 1758) (Order: Clupeiformes, Family: Clupeidae) is one of five clupeids occurring in the North Sea. Three sub-species have been defined [1], namely S. sprattus sprattus in the North-East Atlantic and North Sea, S. sprattus balticus in the Baltic Sea and S. sprattus phalericus in the Mediterranean and Black Seas. Comm. common names Danish Brisling Icelandic Brislingur Dutch Sprot Latvian Bt tli a English Sprat Norwegian Brisling Estonian Kilu Polish Szprot Faroese Brislingur Portuguese Espadilha / Lavadilha Finnish Kilohaili Russian French Sprat Spanish Espadín German Sprott Swedish Skarpsill General: Sprat is a small-bodied pelagic schooling species that is most abundant in relatively shallow waters, including areas of low salinity such as the Baltic. It is an important food resource for many top predators. Sprat is mainly landed for industrial processing (often mixed with juvenile herring), but a small market exists for human consumption (smoked sprat and whitebait). Sprat may be confused with juvenile herring, but the relative positions of dorsal and pelvic fins, the grey rather than blue coloration on the dorsal side and the sharply toothed keel on the belly are clear distinguishing features. Minimum Landing Size: None. Distribution Biogeographical distribution: Sprat is widely distributed in the shelf waters of Europe and North Africa, ranging from Morocco to Norway, including the Mediterranean, Black Sea and Baltic Sea [1,2], but stays largely within the 50 m depth contour and is also common in inshore waters. Spatial distribution in North Sea: Sprat is most abundant south of the Dogger Bank and in the Kattegat (Fig. -
Global Standard for Responsible Supply of Marine Ingredients
IFFO RS Global Standard for Responsible Supply of Marine Ingredients Global Standard for Responsible Supply of Marine Ingredients Fishery Assessment Methodology and Template Report V2.0 Version No.: 2.0 Date: July 2017 Page 1 IFFO RS Global Standard for Responsible Supply of Marine Ingredients Fishery Under Assessment Common Sardine (Strangomera bentincki) Date August 2019 Assessor Jim Daly Application details and summary of the assessment outcome Name: Alimentos Marinos and others Address: Country: Chile Zip: Tel. No.: Fax. No.: Email address: Applicant Code Key Contact: Title: Certification Body Details Name of Certification Body: SAI Global Ltd Assessment Initial/Surveillance/Re- Whole fish/ By- Assessor Name Peer Reviewer Days approval product Jim Daly Virginia Polonio 3 SURV 1 Whole fish Assessment Period 2018-2019 Scope Details Management Authority (Country/State) Subpesca & Sernapesca, Chile Main Species Common Sardine (Araucanian herring) Fishery Location Chile region V-X, Pacific area FAO 87 Gear Type(s) Purse seine Outcome of Assessment Common Sardine V-X (Araucanian herring) PASS Strangomera bentincki Clauses Failed NONE PASS Peruvian anchovy V-X (Engraulis ringens); Clauses Failed NONE Chub mackerel V-X (Global stock) (Trachurus PASS murphyi) Clauses Failed NONE Peer Review Evaluation APPROVE Recommendation PASS Version No.: 2.0 Date: July 2017 Page 2 Assessment Determination The Subsecretaria de Pesca (Undersecretariat of Fisheries, SUBPESCA or SSP); positioned within the Chilean Ministry (MINECOM) provide policy settings and regulatory framework for the domestic management of the sector. The Instituto de Fomento Pesquero (Fisheries Development Institute, IFOP) is the research arm of the institutional framework; providing scientific advice to SUBPESCA on fisheries and aquaculture issues. -
Spawning of Bluefin Tuna in the Black Sea: Historical Evidence, Environmental Constraints and Population Plasticity
Spawning of Bluefin Tuna in the Black Sea: Historical Evidence, Environmental Constraints and Population Plasticity Brian R. MacKenzie1*, Patrizio Mariani2 1 Center for Macroecology, Evolution and Climate, National Institute for Aquatic Resources (DTU Aqua), Technical University of Denmark, Charlottenlund, Denmark, 2 Center for Ocean Life, National Institute for Aquatic Resources (DTU Aqua), Technical University of Denmark, Charlottenlund, Denmark Abstract The lucrative and highly migratory Atlantic bluefin tuna, Thunnus thynnus (Linnaeus 1758; Scombridae), used to be distributed widely throughout the north Atlantic Ocean, Mediterranean Sea and Black Sea. Its migrations have supported sustainable fisheries and impacted local cultures since antiquity, but its biogeographic range has contracted since the 1950s. Most recently, the species disappeared from the Black Sea in the late 1980s and has not yet recovered. Reasons for the Black Sea disappearance, and the species-wide range contraction, are unclear. However bluefin tuna formerly foraged and possibly spawned in the Black Sea. Loss of a locally-reproducing population would represent a decline in population richness, and an increase in species vulnerability to perturbations such as exploitation and environmental change. Here we identify the main genetic and phenotypic adaptations that the population must have (had) in order to reproduce successfully in the specific hydrographic (estuarine) conditions of the Black Sea. By comparing hydrographic conditions in spawning areas of the three species of bluefin tunas, and applying a mechanistic model of egg buoyancy and sinking rate, we show that reproduction in the Black Sea must have required specific adaptations of egg buoyancy, fertilisation and development for reproductive success. Such adaptations by local populations of marine fish species spawning in estuarine areas are common as is evident from a meta-analysis of egg buoyancy data from 16 species of fish. -
Divovich-Et-Al-Russia-Black-Sea.Pdf
Fisheries Centre The University of British Columbia Working Paper Series Working Paper #2015 - 84 Caviar and politics: A reconstruction of Russia’s marine fisheries in the Black Sea and Sea of Azov from 1950 to 2010 Esther Divovich, Boris Jovanović, Kyrstn Zylich, Sarah Harper, Dirk Zeller and Daniel Pauly Year: 2015 Email: [email protected] This working paper is available by the Fisheries Centre, University of British Columbia, Vancouver, BC, V6T made 1Z4, Canada. CAVIAR AND POLITICS: A RECONSTRUCTION OF RUSSIA’S MARINE FISHERIES IN THE BLACK SEA AND SEA OF AZOV FROM 1950 TO 2010 Esther Divovich, Boris Jovanović, Kyrstn Zylich, Sarah Harper, Dirk Zeller and Daniel Pauly Sea Around Us, Fisheries Centre, University of British Columbia, 2202 Main Mall, Vancouver, V6T 1Z4, Canada Corresponding author : [email protected] ABSTRACT The aim of the present study was to reconstruct total Russian fisheries catch in the Black Sea and Sea of Azov for the period 1950 to 2010. Using catches presented by FAO on behalf of the USSR and Russian Federation as a baseline, total removals were estimated by adding estimates of unreported commercial catches, discards at sea, and unreported recreational and subsistence catches. Estimates for ‘ghost fishing’ were also made, but not included in the final reconstructed catch. Total removals by Russia were estimated to be 1.57 times the landings presented by FAO (taking into account USSR-disaggregation), with unreported commercial catches, discards, recreational, and subsistence fisheries representing an additional 30.6 %, 24.7 %, 1.0%, and 0.7 %, respectively. Discards reached their peak in the 1970s and 1980s during a period of intense bottom trawling for sprat that partially contributed to the large-scale fisheries collapse in the 1990s. -
B COMMISSION REGULATION (EC) No 409/2009 of 18 May
2009R0409 — EN — 01.01.2010 — 000.001 — 1 This document is meant purely as a documentation tool and the institutions do not assume any liability for its contents ►B COMMISSION REGULATION (EC) No 409/2009 of 18 May 2009 establishing Community conversion factors and presentation codes used to convert fish processed weight into fish live weight, and amending Commission Regulation (EEC) No 2807/83 (OJ L 123, 19.5.2009, p. 78) Amended by: Official Journal No page date ►M1 Commission Regulation (EU) No 1282/2009 of 22 December 2009 L 344 31 23.12.2009 2009R0409 — EN — 01.01.2010 — 000.001 — 2 ▼B COMMISSION REGULATION (EC) No 409/2009 of 18 May 2009 establishing Community conversion factors and presentation codes used to convert fish processed weight into fish live weight, and amending Commission Regulation (EEC) No 2807/83 THE COMMISSION OF THE EUROPEAN COMMUNITIES, Having regard to the Treaty establishing the European Community, Having regard to Council Regulation (EEC) No 2847/93 of 12 October 1993, establishing a control system applicable to the Common Fisheries policy (1), and in particular Article 5 thereof, Whereas: (1) The implementation of Commission Regulation (EEC) No 2807/83 of 22 September 1983 laying down detailed rules for recording information on Member States’ catches of fish (2), has brought to light certain differences which result in problems of application and enforcement of Community legislation and which should be rectified, notably by harmonising fresh fish conversion factors among EU Member States. (2) Presentation codes for processed fish should be established in order to eliminate ambiguities in the interpretation of data recorded and therefore allow a more effective control of catch uptake by Member States. -
Herrings, Sardines, Anchovies Capture Production by Species, Fishing Areas and Countries Or Areas B-35 Harengs, Sardines, Anchoi
224 Herrings, sardines, anchovies Capture production by species, fishing areas and countries or areas B-35 Harengs, sardines, anchois Captures par espèces, zones de pêche et pays ou zones Arenques, sardinas, anchoas Capturas por especies, áreas de pesca y países o áreas Species, Fishing area Espèce, Zone de pêche 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 Especie, Área de pesca t t t t t t t t t t Atlantic herring Hareng de l'Atlantique Arenque del Atlántico Clupea harengus 1,21(05)001,05 HER 21 Canada 163 263 160 101 167 782 140 237 155 178 149 883 134 468 113 989 126 102 114 610 Spain - - 11 - - - - 1 - - USA 97 398 93 934 73 330 77 912 101 133 65 138 78 507 86 415 93 967 92 402 21 Fishing area total 260 661 254 035 241 123 218 149 256 311 215 021 212 975 200 405 220 069 207 012 27 Belgium 6 3 1 0 0 1 3 4 22 27 Channel Is - - - 1 1 1 - 0 - - Denmark 167 456 139 660 120 660 105 450 92 049 77 445 85 934 125 117 141 028 135 580 Estonia 22 098 23 192 26 108 31 843 33 168 28 866 25 325 22 047 21 941 23 130 Faroe Is 71 878 71 840 63 332 78 317 94 538 87 575 72 952 51 352 115 552 43 326 Finland 66 977 79 887 89 393 83 717 90 833 92 757 98 002 117 866 122 318 131 116 France 40 960 39 607 22 115 22 122 3 752 4 421 12 879 24 372 30 142 30 945 Germany 92 581 80 552 49 966 46 660 37 453 37 038 37 023 51 214 71 841 53 423 Greenland 3 360 18 130 4 898 4 245 3 730 4 764 2 940 2 583 12 133 13 181 Iceland 261 445 291 380 319 894 370 814 331 200 254 476 198 463 115 181 157 537 157 895 Ireland 29 341 30 780 30 827 28 058 26 254 26 662 24 807 28 719 23 192 24 056 Isle of Man .. -
Otolith Morphology of Sprat (Sprattus Sprattus) Along the Swedish West Coast
Department of Aquatic Resources Otolith morphology of sprat (Sprattus sprattus) along the Swedish west coast Francesco Saltalamacchia Independent project in Biology – Master´s thesis • 30 credits Examensarbete/Master’s thesis Lysekil 2018 1 2 Otolith morphology of sprat (Sprattus sprattus) along the Swedish west coast Francesco Saltalamacchia Supervisor: Valerio Bartolino, Swedish University of Agricultural Sciences, Department of Aquatic Resources Assistant supervisor: Florian Berg, Institute of Marine Research, Bergen, Norway Examiner: Michele Casini, Swedish University of Agricultural Sciences, Department of Aquatic Resources Credits: 30 credits Level: Second cycle, A2E Course title: Independent project in Biology - Master's thesis Course code: EX0565 Course coordinating department: Department of Aquatic Resources Place of publication: Lysekil Year of publication: 2018 Cover picture: Francesco Saltalamacchia Online publication: https://stud.epsilon.slu.se Keywords: European sprat, otolith, shape analysis, wavelet Swedish University of Agricultural Sciences Faculty of Natural Resources and Agricultural Sciences Department of Aquatic Resources 3 4 Abstract The population structure of sprat (Sprattus sprattus) in the Swedish Kattegat – Skagerrak has been at present not well investigated, and the boundaries between the management unit in this region and the larger stock occurring in the North Sea are also highly uncertain, posing issues to the successful management of the stock in this area. In this study, variations in otolith shape among several samples from the Swedish west coast, southern North Sea and Norwegian fjords north of Bergen were studied to investigate the effectiveness of shape analysis for characterise the population structure in the study area, and evaluate whether differences could be used to assign individual fish to their origin.