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European Anchovy Engraulis Encrasicolus (Linnaeus, 1758) From
European anchovy Engraulis encrasicolus (Linnaeus, 1758) from the Gulf of Annaba, east Algeria: age, growth, spawning period, condition factor and mortality Nadira Benchikh, Assia Diaf, Souad Ladaimia, Fatma Z. Bouhali, Amina Dahel, Abdallah B. Djebar Laboratory of Ecobiology of Marine and Littoral Environments, Department of Marine Science, Faculty of Science, University of Badji Mokhtar, Annaba, Algeria. Corresponding author: N. Benchikh, [email protected] Abstract. Age, growth, spawning period, condition factor and mortality were determined in the European anchovy Engraulis encrasicolus populated the Gulf of Annaba, east Algeria. The age structure of the total population is composed of 59.1% females, 33.5% males and 7.4% undetermined. The size frequency distribution method shows the existence of 4 cohorts with lengths ranging from 8.87 to 16.56 cm with a predominance of age group 3 which represents 69.73% followed by groups 4, 2 and 1 with respectively 19.73, 9.66 and 0.88%. The VONBIT software package allowed us to estimate the growth parameters: asymptotic length L∞ = 17.89 cm, growth rate K = 0.6 year-1 and t0 = -0.008. The theoretical maximum age or tmax is 4.92 years. The height-weight relationship shows that growth for the total population is a major allometry. Spawning takes place in May, with a gonado-somatic index (GSI) of 4.28% and an annual mean condition factor (K) of 0.72. The total mortality (Z), natural mortality (M) and fishing mortality (F) are 2.31, 0.56 and 1.75 year-1 respectively, with exploitation rate E = F/Z is 0.76 is higher than the optimal exploitation level of 0.5. -
A Practical Handbook for Determining the Ages of Gulf of Mexico And
A Practical Handbook for Determining the Ages of Gulf of Mexico and Atlantic Coast Fishes THIRD EDITION GSMFC No. 300 NOVEMBER 2020 i Gulf States Marine Fisheries Commission Commissioners and Proxies ALABAMA Senator R.L. “Bret” Allain, II Chris Blankenship, Commissioner State Senator District 21 Alabama Department of Conservation Franklin, Louisiana and Natural Resources John Roussel Montgomery, Alabama Zachary, Louisiana Representative Chris Pringle Mobile, Alabama MISSISSIPPI Chris Nelson Joe Spraggins, Executive Director Bon Secour Fisheries, Inc. Mississippi Department of Marine Bon Secour, Alabama Resources Biloxi, Mississippi FLORIDA Read Hendon Eric Sutton, Executive Director USM/Gulf Coast Research Laboratory Florida Fish and Wildlife Ocean Springs, Mississippi Conservation Commission Tallahassee, Florida TEXAS Representative Jay Trumbull Carter Smith, Executive Director Tallahassee, Florida Texas Parks and Wildlife Department Austin, Texas LOUISIANA Doug Boyd Jack Montoucet, Secretary Boerne, Texas Louisiana Department of Wildlife and Fisheries Baton Rouge, Louisiana GSMFC Staff ASMFC Staff Mr. David M. Donaldson Mr. Bob Beal Executive Director Executive Director Mr. Steven J. VanderKooy Mr. Jeffrey Kipp IJF Program Coordinator Stock Assessment Scientist Ms. Debora McIntyre Dr. Kristen Anstead IJF Staff Assistant Fisheries Scientist ii A Practical Handbook for Determining the Ages of Gulf of Mexico and Atlantic Coast Fishes Third Edition Edited by Steve VanderKooy Jessica Carroll Scott Elzey Jessica Gilmore Jeffrey Kipp Gulf States Marine Fisheries Commission 2404 Government St Ocean Springs, MS 39564 and Atlantic States Marine Fisheries Commission 1050 N. Highland Street Suite 200 A-N Arlington, VA 22201 Publication Number 300 November 2020 A publication of the Gulf States Marine Fisheries Commission pursuant to National Oceanic and Atmospheric Administration Award Number NA15NMF4070076 and NA15NMF4720399. -
Studies on Some Japanese Fishes of The, Family Gempylidae
Studies on Some Japanese Fishes of the, Family Gempylidae KIYOMATSU M ATSUBARA and TAMOTSU IWAI l THOUGH TH E FISHES of the family Gempyli The few species comprising this family live dae have long been of interest to ichth yolo in the high seas and are widely distributed in gists and though considerable literature warm regions throughout the world . concerning this family has accumulated; the The measurements of various parts of the group still is far from being satisfactorily body were made in the same way as those understood. made by the senior author in his study on the Since the publication of " Gempylidae of scorpaenoid fishes ofJapan (Matsubara, 1943: Japan" by Dr. Toshij i Kamohara in 1938, 6-7). We have carefully observed the gill some additional facts have come to ligh t, and rakers stained by alizarin red and cleared by several discrepancies have been found to exist potassium hydroxide. between his descriptions and our specimens. Acknowledgments: .We wish to express our The present paper, supplementing Karno sincere gratitude to Mr. Vernon E. Brock, hara's, treats seven species of the family, re Dr. Carl L. Hubbs, Mr. T. Abe, Dr. T. Karno ferred to the genera N eoepinnul«, Bpinnula, hara, and Mr. M. Nakamura, all of whom Mimasea, Gempylus, Rexea, Nealotus, and helped us in various ways. We are also greatly Prometbicbtbys. The specimens thus far ex indebted to Messrs. G . Abe and S. Noda for amined were all taken by deep-sea trawlers assistance in 'obtaining material. Expenses for off the Pacific coast of J apan at a depth of investigations of deep-sea fishes were de about 100 fathoms, and all are depo sited in frayed from 1943 to 1945 by a research fun d the Department of Fisheries, Facult y of Agri- . -
Simulations of Fishing Effects on the Southern Benguela Fish Community Using an Individual-Based Model: Learning from a Comparison with Ecosim
Ecosystem Approaches to Fisheries in the Southern Benguela Afr. J. mar. Sci. 26: 95–114 2004 95 SIMULATIONS OF FISHING EFFECTS ON THE SOUTHERN BENGUELA FISH COMMUNITY USING AN INDIVIDUAL-BASED MODEL: LEARNING FROM A COMPARISON WITH ECOSIM Y-J. SHIN*, L. J. SHANNON† and P. M. CURY* By applying an individual-based model (OSMOSE) to the southern Benguela ecosystem, a multispecies analysis is proposed, complementary to that provided by the application of ECOPATH/ECOSIM models. To reconstruct marine foodwebs, OSMOSE is based on the hypothesis that predation is a size-structured process. In all, 12 fish species, chosen for their importance in terms of biomass and catches, are explicitly modelled. Growth, repro- duction and mortality parameters are required to model their dynamics and trophic interactions. Maps of mean spatial distribution of the species are compiled from published literature. Taking into account the spatial component is necessary because spatial co-occurrence determines potential interactions between predatory fish and prey fish of suitable size. To explore ecosystem effects of fishing, different fishing scenarios, previously examined using ECOSIM, are simulated using the OSMOSE model. They explore the effects of targeting fish species in the southern Benguela considered to be predators (Cape hake Merluccius capensis and M. paradoxus) or prey (anchovy Engraulis encrasicolus, sardine Sardinops sagax, round herring Etrumeus whiteheadi). Simulation results are compared and are generally consistent with those obtained using an ECOSIM model. This cross-validation appears to be a promising means of evaluating the robustness of model outputs, when separate validation of marine ecosystem models are still difficult to perform. -
Fisheries of the Northeast
FISHERIES OF THE NORTHEAST AMERICAN BLUE LOBSTER BILLFISHES ATLANTIC COD MUSSEL (Blue marlin, Sailfish, BLACK SEA BASS Swordfish, White marlin) CLAMS DRUMS BUTTERFISH (Arc blood clam, Arctic surf clam, COBIA Atlantic razor clam, Atlantic surf clam, (Atlantic croaker, Black drum, BLUEFISH (Gulf butterfish, Northern Northern kingfish, Red drum, Northern quahog, Ocean quahog, harvestfish) CRABS Silver sea trout, Southern kingfish, Soft-shelled clam, Stout razor clam) (Atlantic rock crab, Blue crab, Spot, Spotted seatrout, Weakfish) Deep-sea red crab, Green crab, Horseshoe crab, Jonah crab, Lady crab, Northern stone crab) GREEN SEA FLATFISH URCHIN EELS (Atlantic halibut, American plaice, GRAY TRIGGERFISH HADDOCK (American eel, Fourspot flounder, Greenland halibut, Conger eel) Hogchoker, Southern flounder, Summer GROUPERS flounder, Winter flounder, Witch flounder, (Black grouper, Yellowtail flounder) Snowy grouper) MACKERELS (Atlantic chub mackerel, MONKFISH HAKES JACKS Atlantic mackerel, Bullet mackerel, King mackerel, (Offshore hake, Red hake, (Almaco jack, Amberjack, Bar Silver hake, Spotted hake, HERRINGS jack, Blue runner, Crevalle jack, Spanish mackerel) White hake) (Alewife, Atlantic menhaden, Atlantic Florida pompano) MAHI MAHI herring, Atlantic thread herring, Blueback herring, Gizzard shad, Hickory shad, Round herring) MULLETS PORGIES SCALLOPS (Striped mullet, White mullet) POLLOCK (Jolthead porgy, Red porgy, (Atlantic sea Scup, Sheepshead porgy) REDFISH scallop, Bay (Acadian redfish, scallop) Blackbelly rosefish) OPAH SEAWEEDS (Bladder -
Anchovy Early Life History and Its Relation to Its Surrounding Environment in the Western Mediterranean Basin
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Digital.CSIC SCI. MAR., 60 (Supl. 2): 155-166 SCIENTIA MARINA 1996 THE EUROPEAN ANCHOVY AND ITS ENVIRONMENT, I. PALOMERA and P. RUBIÉS (eds.) Anchovy early life history and its relation to its surrounding environment in the Western Mediterranean basin ALBERTO GARCÍA1 and ISABEL PALOMERA2 1Centro Oceanográfico de Málaga, Instituto Español de Oceanografía, Aptdo. 285. Fuengirola, 29640 Málaga, Spain. 2Institut de Ciències del Mar. CSIC, Passeig Joan de Borbó, s/n, 08039 Barcelona, Spain. SUMMARY: This paper is a review on the anchovy early life history in the western Mediterranean. There is evidence of latitudinal differences in the duration of the spawning period associated with regional temperature variations. The main spawning areas of the anchovy are located in the Gulf of Lyons and at the shelf surrounding the Ebro river delta. The exten- sions of spawning grounds seem to be linked to the size of the shelf and to the degree of hydrographic enriching-process- es. Punctual studies on egg and larval ecology have been made mainly in the areas of the main spawning grounds, report- ing preliminary results on growth, feeding, condition and mortality estimates. Biomass estimation by the Daily Egg Pro- duction Method (DEPM) has also been applied at the northern region. Key words: Anchovy, Engraulis encrasicolus, eggs and larvae, reproduction, Western Mediterranean. RESUMEN: PRIMEROS ESTADIOS DE DESARROLLO DE LA ANCHOA Y SU RELACIÓN CON EL AMBIENTE EN EL MEDITERRÁNEO OCCI- DENTAL. – Este trabajo es una revisión de los estudios realizados sobre las primeras fases de desarrollo de la anchoa del Mediterráneo occidental. -
Abundance and Distribution of Eggs and Larvae of Anchovy
Turkish Journal of Zoology Turk J Zool (2013) 37: 773-781 http://journals.tubitak.gov.tr/zoology/ © TÜBİTAK Research Article doi:10.3906/zoo-1212-31 Abundance and distribution of eggs and larvae of anchovy (Engraulis encrasicolus, Linnaeus, 1758) and horse mackerel (Trachurus mediterraneus, Steindachner, 1868) on the coasts of the eastern Black Sea 1, 2 Cemalettin ŞAHİN *, Necati HACIMURTAZAOĞLU 1 Faculty of Fisheries, Recep Tayyip Erdoğan University, Rize, Turkey 2 Republic of Turkey Ministry of Food, Agriculture, and Livestock, Trabzon, Turkey Received: 27.12.2012 Accepted: 08.07.2013 Published Online: 04.10.2013 Printed: 04.11.2013 Abstract: Sampling for this survey was performed in 5 stations located in the bays of Sürmene and Rize in the eastern Black Sea between April and October 2006. During the sampling, the quantities and distributions of eggs and larvae of anchovies (Engraulis encrasicolus) and horse mackerel (Trachurus mediterraneus) were determined. For horizontal towing carried out from the surface (0–5 m), a plankton net of 50 cm in diameter and 500 µm mesh. The eggs of anchovy and horse mackerel sampled in plankton tows were found to be 438.33 ind./100 m3 and 5.71 ind./100 m3 for horizontal tows. During horizontal tows, the larvae of anchovy and horse mackerel were found to be 8.00 ind./100 m3 and 0.68 ind./100 m3, respectively. During the surveys, a total of 14,535 anchovy eggs, 147 horse mackerel eggs, 256 anchovy larvae, and 7 horse mackerel larvae were sampled. Mortality rates were calculated as 81.18% for anchovy and 37.41% for horse mackerel. -
Sharkcam Fishes
SharkCam Fishes A Guide to Nekton at Frying Pan Tower By Erin J. Burge, Christopher E. O’Brien, and jon-newbie 1 Table of Contents Identification Images Species Profiles Additional Info Index Trevor Mendelow, designer of SharkCam, on August 31, 2014, the day of the original SharkCam installation. SharkCam Fishes. A Guide to Nekton at Frying Pan Tower. 5th edition by Erin J. Burge, Christopher E. O’Brien, and jon-newbie is licensed under the Creative Commons Attribution-Noncommercial 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc/4.0/. For questions related to this guide or its usage contact Erin Burge. The suggested citation for this guide is: Burge EJ, CE O’Brien and jon-newbie. 2020. SharkCam Fishes. A Guide to Nekton at Frying Pan Tower. 5th edition. Los Angeles: Explore.org Ocean Frontiers. 201 pp. Available online http://explore.org/live-cams/player/shark-cam. Guide version 5.0. 24 February 2020. 2 Table of Contents Identification Images Species Profiles Additional Info Index TABLE OF CONTENTS SILVERY FISHES (23) ........................... 47 African Pompano ......................................... 48 FOREWORD AND INTRODUCTION .............. 6 Crevalle Jack ................................................. 49 IDENTIFICATION IMAGES ...................... 10 Permit .......................................................... 50 Sharks and Rays ........................................ 10 Almaco Jack ................................................. 51 Illustrations of SharkCam -
New Zealand Fishes a Field Guide to Common Species Caught by Bottom, Midwater, and Surface Fishing Cover Photos: Top – Kingfish (Seriola Lalandi), Malcolm Francis
New Zealand fishes A field guide to common species caught by bottom, midwater, and surface fishing Cover photos: Top – Kingfish (Seriola lalandi), Malcolm Francis. Top left – Snapper (Chrysophrys auratus), Malcolm Francis. Centre – Catch of hoki (Macruronus novaezelandiae), Neil Bagley (NIWA). Bottom left – Jack mackerel (Trachurus sp.), Malcolm Francis. Bottom – Orange roughy (Hoplostethus atlanticus), NIWA. New Zealand fishes A field guide to common species caught by bottom, midwater, and surface fishing New Zealand Aquatic Environment and Biodiversity Report No: 208 Prepared for Fisheries New Zealand by P. J. McMillan M. P. Francis G. D. James L. J. Paul P. Marriott E. J. Mackay B. A. Wood D. W. Stevens L. H. Griggs S. J. Baird C. D. Roberts‡ A. L. Stewart‡ C. D. Struthers‡ J. E. Robbins NIWA, Private Bag 14901, Wellington 6241 ‡ Museum of New Zealand Te Papa Tongarewa, PO Box 467, Wellington, 6011Wellington ISSN 1176-9440 (print) ISSN 1179-6480 (online) ISBN 978-1-98-859425-5 (print) ISBN 978-1-98-859426-2 (online) 2019 Disclaimer While every effort was made to ensure the information in this publication is accurate, Fisheries New Zealand does not accept any responsibility or liability for error of fact, omission, interpretation or opinion that may be present, nor for the consequences of any decisions based on this information. Requests for further copies should be directed to: Publications Logistics Officer Ministry for Primary Industries PO Box 2526 WELLINGTON 6140 Email: [email protected] Telephone: 0800 00 83 33 Facsimile: 04-894 0300 This publication is also available on the Ministry for Primary Industries website at http://www.mpi.govt.nz/news-and-resources/publications/ A higher resolution (larger) PDF of this guide is also available by application to: [email protected] Citation: McMillan, P.J.; Francis, M.P.; James, G.D.; Paul, L.J.; Marriott, P.; Mackay, E.; Wood, B.A.; Stevens, D.W.; Griggs, L.H.; Baird, S.J.; Roberts, C.D.; Stewart, A.L.; Struthers, C.D.; Robbins, J.E. -
Sharks and Rays
SHARKS AND RAYS Photo by: © Jim Abernethy Transboundary Species - Content ... 31 32 33 34 35 ... Overview As stated in the previous section, the establishment of the Yarari fishing for sharks in the Netherlands and places new pressure on Marine Mammal and Shark Sanctuary was an important step fishermen to implement new techniques and updated fishing gear in protecting the shark and ray species of the Dutch Caribbean. to avoid accidentally catching sharks and rays as bycatch. Overall, there is a significant lack of information concerning these vital species within Dutch Caribbean waters. Fortunately, this There are several different international treaties and legisla- trend is changing and in the last few years there has been a push tion which offer protection to these species. This includes the to increase research, filling in the historic knowledge gap. Sharks Convention on International Trade in Endangered Species (CITES), and rays are difficult species to protect as they tend to have long the Specially Protected Areas and Wildlife (SPAW) protocol and reproduction cycles, varying between 3 and 30 years, small litters, the Convention on Migratory Species (CMS). Scientists are just which means they do not recover quickly when overfished and can beginning to uncover the complexities of managing conservation travel over great distances which makes them difficult to track. efforts for these species, as they often have long migration routes which put them in danger if international waters are not managed Early in 2019, the Ministry of Agriculture, Nature and Food Quality and protected equally. (LNV) published a strategy document to manage and protect sharks and rays within waters the Netherlands influences (this There are more than thirty different species of sharks and includes the North Sea, Dutch Caribbean and other international rays which are known to inhabit the waters around the Dutch waters). -
A Chromosome-Level Genome Assembly of the Anglerfish Lophius Litulon
Downloaded from orbit.dtu.dk on: Oct 01, 2021 A Chromosome-Level Genome Assembly of the Anglerfish Lophius litulon Lv, Meiqi; Zhang, Yaolei; Liu, Kaiqiang; Li, Chang; Wang, Jiahao; Fan, Guangyi; Liu, Xin; Yang, Huanming; Liu, Changlin; Mahboob, Shahid Total number of authors: 12 Published in: Frontiers in Genetics Link to article, DOI: 10.3389/fgene.2020.581161 Publication date: 2020 Document Version Publisher's PDF, also known as Version of record Link back to DTU Orbit Citation (APA): Lv, M., Zhang, Y., Liu, K., Li, C., Wang, J., Fan, G., Liu, X., Yang, H., Liu, C., Mahboob, S., Liu, J., & Shao, C. (2020). A Chromosome-Level Genome Assembly of the Anglerfish Lophius litulon. Frontiers in Genetics, 11, [581161]. https://doi.org/10.3389/fgene.2020.581161 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. fgene-11-581161 November -
Identification Guide to the Deep-Sea Cartilaginous Fishes Of
Identification guide to the deep–sea cartilaginous fishes of the Southeastern Atlantic Ocean FAO. 2015. Identification guide to the deep–sea cartilaginous fishes of the Southeastern Atlantic Ocean. FishFinder Programme, by Ebert, D.A. and Mostarda, E., Rome, Italy. Supervision: Merete Tandstad, Jessica Sanders (FAO, Rome) Technical editor: Edoardo Mostarda (FAO, Rome) Colour illustrations, cover and graphic design: Emanuela D’Antoni (FAO, Rome) This guide was prepared under the “FAO Deep–sea Fisheries Programme” thanks to a generous funding from the Government of Norway (Support to the implementation of the International Guidelines on the Management of Deep-Sea Fisheries in the High Seas project) for the purpose of assisting states, institutions, the fishing industry and RFMO/As in the implementation of FAO International Guidelines for the Management of Deep-sea Fisheries in the High Seas. It was developed in close collaboration with the FishFinder Programme of the Marine and Inland Fisheries Branch, Fisheries Department, Food and Agriculture Organization of the United Nations (FAO). The present guide covers the deep–sea Southeastern Atlantic Ocean and that portion of Southwestern Indian Ocean from 18°42’E to 30°00’E (FAO Fishing Area 47). It includes a selection of cartilaginous fish species of major, moderate and minor importance to fisheries as well as those of doubtful or potential use to fisheries. It also covers those little known species that may be of research, educational, and ecological importance. In this region, the deep–sea chondrichthyan fauna is currently represented by 50 shark, 20 batoid and 8 chimaera species. This guide includes full species accounts for 37 shark, 9 batoid and 4 chimaera species selected as being the more difficult to identify and/or commonly caught.