Global Standard for Responsible Supply of Marine Ingredients Fishery Assessment Methodology and Template Report V2.0
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Spawning Frequency of Trachurus Mediterraneus (Carangidae) in the Sea of Marmara
www.trjfas.org ISSN 1303-2712 Turkish Journal of Fisheries and Aquatic Sciences 13: 441-446 (2013) DOI: 10.4194/1303-2712-v13_3_06 Spawning Frequency of Trachurus mediterraneus (Carangidae) in the Sea of Marmara Nazlı Demirel1,*, Ahsen Yüksek1 1 Istanbul University, Institute of Marine Science and Management, 34116, Vefa, Istanbul, Turkey. * Corresponding Author: Tel.: +90.212 4400000; Fax: +90.212 5268433; Received 10.April.2013 E-mail: [email protected] Accepted 28.June.2013 Abstract In this study the spawning frequency of Trachurus mediterraneus was estimated for the first time in the Mediterranean basin. The presence of the late-migratory nucleus stage oocytes and post ovulatory follicles (POFs) in the same ovaries were observed continuously during the sampling period. The daily percentage of spawning females with ovaries containing: late migratory nucleus (MN) stage, POFs (present up to 12-24h from the spawning event) was calculated as 11.7% and 18.6% respectively. The average percentage of females presenting one of the two different states was 15.3% which indicated that Mediterranean horse mackerel had high spawning rates in the Sea of Marmara. Our results indicated that T. mediterraneus is a multiple spawner and females spawn approximately every 6.6 days, therefore 20 times in the spawning period May-August 2009. Keywords: Spawning frequency, post ovulatory follicles, Mediterranean horse mackerel Marmara Denizi’nde Bulunan Trachurus mediterraneus (Carangidae) Türünün Üreme Sıklığı Özet Bu çalışmayla Akdeniz havzasında ilk defa T. mediterraneus türünün üreme sıklığına ilişkin değerlendirme ortaya konmuştur. Örnekleme dönemi boyunca aynı ovaryumda ileri çekirdek göçü evresindeki (ileri ÇG) oositlerle birlikte yumurtlama sonrası foliküllerin (YSF) bir arada bulunduğu gözlenmiştir. -
Jubilee Field Draft EIA Chapter 4 6 Aug 09.Pdf
4 ENVIRONMENTAL AND SOCIO-ECONOMIC BASELINE 4.1 INTRODUCTION This chapter provides a description of the current environmental and socio- economic situation against which the potential impacts of the Jubilee Field Phase 1 development can be assessed and future changes monitored. The chapter presents an overview of the aspects of the environment relating to the surrounding area in which the Jubilee Field Phase 1 development will take place and which may be directly or indirectly affected by the proposed project. This includes the Jubilee Unit Area, the Ghana marine environment at a wider scale and the six districts of the Western Region bordering the marine environment. The Jubilee Unit Area and its regional setting are shown in Figure 4.1. The project area is approximately 132 km west-southwest of the city of Takoradi, 60 km from the nearest shoreline of Ghana, and 75 km from the nearest shoreline of Côte d’Ivoire. Figure 4.1 Project Location and Regional Setting ENVIRONMENTAL RESOURCES MANAGEMENT TULLOW GHANA LIMITED 4-1 The baseline description draws on a number of primary and secondary data sources. Primary data sources include recent hydrographic studies undertaken as part of the exploration well drilling programme in the Jubilee field area, as well as an Environmental Baseline Survey (EBS) which was commissioned by Tullow and undertaken by TDI Brooks (2008). An electronic copy of the EBS is attached to this EIS. It is noted that information on the offshore distribution and ecology of marine mammals, turtles and offshore pelagic fish is more limited due to limited historic research in offshore areas. -
'False Cod' Epinephelus Aeneus in a Context of Ineffective Management
African Journal of Marine Science 2012, 34(3): 305–311 Copyright © NISC (Pty) Ltd Printed in South Africa — All rights reserved AFRICAN JOURNAL OF MARINE SCIENCE ISSN 1814-232X EISSN 1814-2338 http://dx.doi.org/ 10.2989/1814232X.2012.725278 Economic dimension of the collapse of the ‘false cod’ Epinephelus aeneus in a context of ineffective management of the small-scale fisheries in Senegal D Thiao 1*, C Chaboud 2, A Samba 3, F Laloë 4 and PM Cury 2 1 Centre de Recherches Océanographiques de Dakar-Thiaroye (CRODT), BP 2241, Dakar, Senegal 2 IRD, UMR EME 212 (Exploited Marine Ecosystems), Centre de Recherche Halieutique Méditerranéenne et Tropicale IRD – IFREMER and Université Montpellier II, Avenue Jean Monnet, BP 171, 34203 Sète Cedex, France 3 Institut Sénégalais de Recherches Agricoles, Cité ISRA n°103, BP 03, Dakar RP, Senegal 4 IRD, UMR GRED 220 (Gouvernance, Risque, Environnement Développement), IRD – UPV Montpellier III, 911 avenue Agropolis, BP 64501, 34394 Montpellier Cedex 5, France * Corresponding author, e-mail: [email protected] Small-scale fisheries are often seen as a solution for ensuring sustainability in marine exploitation. They are viewed as a suitable alternative to industrial fisheries, particularly when considering their social and economic importance in developing countries. Here, we show that the booming small-scale fishery sector in Senegal, in the context of increasing foreign demand, has induced the collapse of one of the most emblematic West African marine fish species, a large grouper Epinephelus aeneus , historically called ‘false cod’ by European fishers. The overexploitation of this species appears to be on account of the increasing effort sustained by a growing international demand and important subsidies, which resulted in a relative stability of the average economic yield per fishing trip and an incentive for continuing targeting this species to almost extinction. -
Bouguerche Et Al
Redescription and molecular characterisation of Allogastrocotyle bivaginalis Nasir & Fuentes Zambrano, 1983 (Monogenea: Gastrocotylidae) from Trachurus picturatus (Bowdich) (Perciformes: Carangidae) off the Algerian coast, Mediterranean Sea Chahinez Bouguerche, Fadila Tazerouti, Delphine Gey, Jean-Lou Justine To cite this version: Chahinez Bouguerche, Fadila Tazerouti, Delphine Gey, Jean-Lou Justine. Redescription and molecular characterisation of Allogastrocotyle bivaginalis Nasir & Fuentes Zambrano, 1983 (Monogenea: Gas- trocotylidae) from Trachurus picturatus (Bowdich) (Perciformes: Carangidae) off the Algerian coast, Mediterranean Sea. Systematic Parasitology, Springer Verlag (Germany), 2019, 96 (8), pp.681-694. 10.1007/s11230-019-09883-7. hal-02557974 HAL Id: hal-02557974 https://hal.archives-ouvertes.fr/hal-02557974 Submitted on 29 Apr 2020 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Bouguerche et al. Allogastrocotyle bivaginalis 1 Systematic Parasitology (2019) 96:681–694 DOI: 10.1007/s11230-019-09883-7 Redescription and molecular characterisation -
BIO 313 ANIMAL ECOLOGY Corrected
NATIONAL OPEN UNIVERSITY OF NIGERIA SCHOOL OF SCIENCE AND TECHNOLOGY COURSE CODE: BIO 314 COURSE TITLE: ANIMAL ECOLOGY 1 BIO 314: ANIMAL ECOLOGY Team Writers: Dr O.A. Olajuyigbe Department of Biology Adeyemi Colledge of Education, P.M.B. 520, Ondo, Ondo State Nigeria. Miss F.C. Olakolu Nigerian Institute for Oceanography and Marine Research, No 3 Wilmot Point Road, Bar-beach Bus-stop, Victoria Island, Lagos, Nigeria. Mrs H.O. Omogoriola Nigerian Institute for Oceanography and Marine Research, No 3 Wilmot Point Road, Bar-beach Bus-stop, Victoria Island, Lagos, Nigeria. EDITOR: Mrs Ajetomobi School of Agricultural Sciences Lagos State Polytechnic Ikorodu, Lagos 2 BIO 313 COURSE GUIDE Introduction Animal Ecology (313) is a first semester course. It is a two credit unit elective course which all students offering Bachelor of Science (BSc) in Biology can take. Animal ecology is an important area of study for scientists. It is the study of animals and how they related to each other as well as their environment. It can also be defined as the scientific study of interactions that determine the distribution and abundance of organisms. Since this is a course in animal ecology, we will focus on animals, which we will define fairly generally as organisms that can move around during some stages of their life and that must feed on other organisms or their products. There are various forms of animal ecology. This includes: • Behavioral ecology, the study of the behavior of the animals with relation to their environment and others • Population ecology, the study of the effects on the population of these animals • Marine ecology is the scientific study of marine-life habitat, populations, and interactions among organisms and the surrounding environment including their abiotic (non-living physical and chemical factors that affect the ability of organisms to survive and reproduce) and biotic factors (living things or the materials that directly or indirectly affect an organism in its environment). -
Monthly Highlights
Monthly Highlights No. 2 / 2021 In this issue As of 2021, the Monthly Highlights include Bulgaria among surveyed countries. According to data collected by EUMOFA from 13 EU Member States, in November 2020 striped venus and whelk together accounted for 12% of the total Contents first-sales value of the “Bivalves and other molluscs and aquatic invertebrates” commodity group. First sales in Europe Striped venus (Italy, Spain) and whelk From 2018 to 2020, the price of live, fresh, or chilled (Belgium, France, Netherlands) mussels imported in the EU from Norway fluctuated from 2,04 to 7,09 EUR/kg. In 2020, both price and Extra-EU imports volume exhibited a downward trend. Weekly average EU import prices of selected products from Over the last four years, German consumers spent selected countries of origin the most for a kilogram of fresh cod, (18,00 EUR/kg on average) compared to France Consumption Fresh cod in Germany, France, and the (16,80 EUR/kg) and the Netherlands (16,30 EUR/kg). Netherlands In 2019, the EU imports of fisheries and aquaculture products from South Africa accounted for over EUR Case studies 295 million and 80.597 tonnes. Hake, squid, and Fisheries and aquaculture in South Africa fishmeal constitute the bulk share of EU imports. Horse mackerel in the EU The largest market for horse mackerel exported by the EU is Egypt. In 2019, exports to the country Global highlights reached 54.000 tonnes, worth EUR 51 million, accounting for 50% of total export volume Macroeconomic context and 47% of value. Marine fuel, consumer prices, and In January 2021, the EU and Greenland concluded exchange rates negotiations for a new four-year Sustainable Fisheries Partnership Agreement (SFPA), which is the third most important agreement in place for the EU in financial terms. -
'Saiko' Fishing Is Fuelling the Collapse of Ghana's Fisheries
STOLEN AT SEA How illegal ‘saiko’ fishing is fuelling the collapse of Ghana’s fisheries A report produced by the Environmental Justice Foundation and Hen Mpoano Stolen at Sea: How illegal ‘saiko’ fishing is fuelling the collapse of Ghana’s fisheries. 1 Citation: EJF and Hen Mpoano (2019). Stolen at sea. How illegal 'saiko' fishing is fuelling the collapse of Ghana's fisheries. A report by: [email protected] [email protected] +233 33 2139 968 +233 31 2020 701 www.ejfoundation.org www.henmpoano.org 2 Out of the shadows. Improving transparency in global fisheries to stop IUU fishing. Contents Executive summary 4 1. Introduction 8 1.1. Illegal saiko fishing 8 2. Aim of study 9 3. Methods 10 3.1. Data collection 10 3.2. Ethics 10 4. Results 14 4.1. Estimate of saiko landings 14 (a) Elmina 14 (b) Apam 16 (c) Axim 17 (d) Total saiko landings (all landing sites) 17 4.2. Estimate of value of the trade 18 (a) Value of saiko fish traded at sea 18 (b) Value of saiko fish sold at the landing site 18 4.3. Change in the saiko trade over time 18 4.4. Composition of saiko catches 19 4.5. Impacts of saiko 20 (a) Artisanal and semi-industrial fishers 20 (b) Processors and traders 21 (c) Saiko workers 21 5. Discussion 22 5.1. The magnitude of the illegal saiko trade 22 5.2. Inequities in Ghana’s marine fisheries sector 23 5.3. Ecological impacts of the saiko trade 24 5.4. Socioeconomic impacts of saiko 28 6. -
Updated Checklist of Marine Fishes (Chordata: Craniata) from Portugal and the Proposed Extension of the Portuguese Continental Shelf
European Journal of Taxonomy 73: 1-73 ISSN 2118-9773 http://dx.doi.org/10.5852/ejt.2014.73 www.europeanjournaloftaxonomy.eu 2014 · Carneiro M. et al. This work is licensed under a Creative Commons Attribution 3.0 License. Monograph urn:lsid:zoobank.org:pub:9A5F217D-8E7B-448A-9CAB-2CCC9CC6F857 Updated checklist of marine fishes (Chordata: Craniata) from Portugal and the proposed extension of the Portuguese continental shelf Miguel CARNEIRO1,5, Rogélia MARTINS2,6, Monica LANDI*,3,7 & Filipe O. COSTA4,8 1,2 DIV-RP (Modelling and Management Fishery Resources Division), Instituto Português do Mar e da Atmosfera, Av. Brasilia 1449-006 Lisboa, Portugal. E-mail: [email protected], [email protected] 3,4 CBMA (Centre of Molecular and Environmental Biology), Department of Biology, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal. E-mail: [email protected], [email protected] * corresponding author: [email protected] 5 urn:lsid:zoobank.org:author:90A98A50-327E-4648-9DCE-75709C7A2472 6 urn:lsid:zoobank.org:author:1EB6DE00-9E91-407C-B7C4-34F31F29FD88 7 urn:lsid:zoobank.org:author:6D3AC760-77F2-4CFA-B5C7-665CB07F4CEB 8 urn:lsid:zoobank.org:author:48E53CF3-71C8-403C-BECD-10B20B3C15B4 Abstract. The study of the Portuguese marine ichthyofauna has a long historical tradition, rooted back in the 18th Century. Here we present an annotated checklist of the marine fishes from Portuguese waters, including the area encompassed by the proposed extension of the Portuguese continental shelf and the Economic Exclusive Zone (EEZ). The list is based on historical literature records and taxon occurrence data obtained from natural history collections, together with new revisions and occurrences. -
A Preliminary Global Assessment of the Status of Exploited Marine Fish and Invertebrate Populations
A PRELIMINARY GLOBAL ASSESSMENT OF THE STATUS OF EXPLOITED MARINE FISH AND INVERTEBRATE POPULATIONS June 30 2018 A PRELIMINARY GLOBAL ASSESSMENT OF THE STATUS OF EXPLOITED MARINE FISH AND INVERTEBRATE POPULATIONS Maria. L.D. Palomares, Rainer Froese, Brittany Derrick, Simon-Luc Nöel, Gordon Tsui Jessika Woroniak Daniel Pauly A report prepared by the Sea Around Us for OCEANA June 30, 2018 A PRELIMINARY GLOBAL ASSESSMENT OF THE STATUS OF EXPLOITED MARINE FISH AND INVERTEBRATE POPULATIONS Maria L.D. Palomares1, Rainer Froese2, Brittany Derrick1, Simon-Luc Nöel1, Gordon Tsui1, Jessika Woroniak1 and Daniel Pauly1 CITE AS: Palomares MLD, Froese R, Derrick B, Nöel S-L, Tsui G, Woroniak J, Pauly D (2018) A preliminary global assessment of the status of exploited marine fish and invertebrate populations. A report prepared by the Sea Around Us for OCEANA. The University of British Columbia, Vancouver, p. 64. 1 Sea Around Us, Institute for the Oceans and Fisheries, University of British Columbia, 2202 Main Mall, Vancouver BC V6T1Z4 Canada 2 Helmholtz Centre for Ocean Research GEOMAR, Düsternbrooker Weg 20, 24105 Kiel, Germany TABLE OF CONTENTS Executive Summary 1 Introduction 2 Material and Methods 3 − Reconstructed catches vs official catches 3 − Marine Ecoregions vs EEZs 3 − The CMSY method 5 Results and Discussion 7 − Stock summaries reports 9 − Problematic stocks and sources of bias 14 − Stocks in the countries where OCEANA operates 22 − Stock assessments on the Sea Around Us website 31 − The next steps 32 Acknowledgements 33 References 34 Appendices I. List of marine ecoregions by EEZ 37 II. Summaries of number of stock by region and 49 by continent III. -
Introduced Marine Species in Croatian Waters (Eastern Adriatic Sea)
Review Article Mediterranean Marine Science Indexed in WoS (Web of Science, ISI Thomson) and SCOPUS The journal is available on line at http://www.medit-mar-sc.net Introduced marine species in Croatian waters (Eastern Adriatic Sea) M. PEĆAREVIĆ1, J. MIKUŠ1, A. BRATOŠ CETINIĆ1, J. DULČIĆ2 and M. ČALIĆ3 1 University of Dubrovnik, Department of Aquaculture, Ćira Carića 4, 20000 Dubrovnik, Croatia 2 Institute of Oceanography and Fisheries, Šetalište I. Meštrovića 63, 21000 Split, Croatia 3 University of Dubrovnik, Institute for Marine and Coastal Research, Kneza Damjana Jude 12, 20000 Dubrovnik, Croatia Corresponding author: [email protected] Handling Editor: Argyro Zenetos Received: 24 October 2012; Accepted: 28 February 2013; Published on line: 26 March 2013 Abstract The Croatian part of the Adriatic Sea covers more than 35% of the total Croatian territory, which means that monitoring changes in marine ecosystems and the conservation of biodiversity are of great importance. Following global changes, Croatia is experiencing increasing problems due to the introduction of new species that include aliens (due to aquaculture activities and ship- ping) and species from other Mediterranean subregions that are extending their geographic range. This work provides a checklist of introduced species in Croatian waters. A total of 113 species (15 phytoplankton, 16 zooplankton, 16 macroalgae, 44 zoobenthic and 22 fish species) have been recorded in the eastern part of the Adriatic Sea, of which 61 species are alien and 52 introduced, due to climate change. Keywords: Alien species, range expansion, Croatia, Adriatic Sea, Mediterranean Sea. Introduction Considering all major characteristics, three biogeo- graphic regions can be recognized in the Adriatic Sea: a The Adriatic Sea is an elongated semi-enclosed basin shallow northern sub-basin and a deep southern sub-ba- in the Northeastern Mediterranean Sea. -
Global Standard for Responsible Supply of Marine Ingredients Fishery Assessment Methodology and Template Report
IFFO RS Global Standard for Responsible Supply of Marine Ingredients Global Standard for Responsible Supply of Marine Ingredients Fishery Assessment Methodology and Template Report Version No.: 2.0 Date: July 2017 Fishery Under Mauritanian Small Pelagics - Purse seine Assessment Date 10 March 2018 Tom Evans Assessor Application details and summary of the assessment outcome Name: Key Traceability Address: 70 Londesborough Road, Southsea Country: UK Zip: PO4 0EX Tel. No. NA Fax. No. NA Email address: Applicant Code NA [email protected] Key Contact: Tom Evans Title: Mr Certification Body Details IFFO RS v2 Name of Certification Body: Assessor Name Peer Reviewer Assessment Initial/Surveillance Whole fish / Days / Re-approval By-product Tom Evans Jo Gascoigne na na na Assessment Period na Scope Details Mauritania Management Authority (Country/State) Round Sardinella (S.aurita) Main Species Cunene horse mackerel (T.trecae) Flat Sardinella (S.maderensis) Chub mackerel (S.japonicus) European Pilchard (S.pilchardus) Atlantic Horse Mackerel (T.trachurus) Bonga Shad (Ethmalosa fimbriate) Area 34 Fishery Location Purse Seine Gear Type(s) Outcome of Assessment Overall Outcome Fail Clauses Failed M2 - Management B – Round Sardinella B - Cunene horse Mackerel B – Flat Sardinella B – Chub Mackerel B - Atlantic Horse Mackerel B – Bonga Shad D- False Scad F1, F3 - Environment Peer Review Evaluation Recommendation Assessment Determination Peer Review Comments Notes for On-site Auditor Note: This table should be completed for whole fish assessments -
Marine Fishes of the Azores: an Annotated Checklist and Bibliography
MARINE FISHES OF THE AZORES: AN ANNOTATED CHECKLIST AND BIBLIOGRAPHY. RICARDO SERRÃO SANTOS, FILIPE MORA PORTEIRO & JOÃO PEDRO BARREIROS SANTOS, RICARDO SERRÃO, FILIPE MORA PORTEIRO & JOÃO PEDRO BARREIROS 1997. Marine fishes of the Azores: An annotated checklist and bibliography. Arquipélago. Life and Marine Sciences Supplement 1: xxiii + 242pp. Ponta Delgada. ISSN 0873-4704. ISBN 972-9340-92-7. A list of the marine fishes of the Azores is presented. The list is based on a review of the literature combined with an examination of selected specimens available from collections of Azorean fishes deposited in museums, including the collection of fish at the Department of Oceanography and Fisheries of the University of the Azores (Horta). Personal information collected over several years is also incorporated. The geographic area considered is the Economic Exclusive Zone of the Azores. The list is organised in Classes, Orders and Families according to Nelson (1994). The scientific names are, for the most part, those used in Fishes of the North-eastern Atlantic and the Mediterranean (FNAM) (Whitehead et al. 1989), and they are organised in alphabetical order within the families. Clofnam numbers (see Hureau & Monod 1979) are included for reference. Information is given if the species is not cited for the Azores in FNAM. Whenever available, vernacular names are presented, both in Portuguese (Azorean names) and in English. Synonyms, misspellings and misidentifications found in the literature in reference to the occurrence of species in the Azores are also quoted. The 460 species listed, belong to 142 families; 12 species are cited for the first time for the Azores.