2020 Final List of Fisheries Deleted, Added, Or Switched in Classification
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The Feeding Ecology of Grey Gurnard, Eutrigla Gurnardus, Off the Coast of Scotland
The Feeding Ecology of Grey Gurnard, Eutrigla gurnardus, off the coast of Scotland. Abstract Until recently, little research had been conducted into the feeding ecology of grey gurnard (Eutrigla gurnardus), and the species’ wider interaction with the ecosystems it inhabits. This study was carried out to address several questions that have recently arisen about the species. Mainly whether the grey gurnard population at Rockall Bank have been predating on the juvenile haddock to a degree that could cause the stock to decline. This was assessed by conducting a stomach contents analysis on a sample of grey gurnard caught on several trawls. The results of this were inconclusive, with only 3 stomachs containing potential haddock remains out of a total of 121 stomachs. However, these results do not completely disprove the hypothesis, as other factors may have influenced the low fish intake in these gurnard. Furthermore, the populations of grey gurnard from Rockall Bank and the Firth of Forth were compared to determine any differences in feeding ecology between the two. It emerged that the two populations were reasonably similar, with smaller size classes consuming less fish and proportionally more invertebrates, while larger size classes had a diet that was predominantly fish, with the fish prey consisting largely of sand eels. Finally, the influence of fish size on prey selection was investigated, with the result showing a clear correlation between increasing fish size and increasing prey mass, likely owing to the greater amount of fish prey that makes up a larger gurnard’s diet. Introduction: Grey gurnard, Eutrigla gurnadus, is a demersal marine species that has a wide distribution throughout the North Atlantic and the North Sea (Vinogradov et al., 2014; Floeter et al., 2005). -
Red Gurnard in the North East Atlantic, Demersal Otter Trawl
Red gurnard in the North East Atlantic, Demersal otter trawl Red gurnard in the North East Atlantic, Demersal otter trawl Content last updated 27th Jan 2016 Stock: Red gurnard in the North East Atlantic Management: EU Overview Red gurnard (Chelidonichthys cuculus) is a widespread demersal species on the Northeast Atlantic shelf, distributed from South Norway and north of the British Isles to Mauritania. The species is found in depths between 20 and 250m living on gravel or coarse sandy substrate. Higher occurrences of red gurnard with patchy distribution have been observed along the Western approaches from the Shetlands Islands to the Celtic Seas and the Channel. A continuous distribution of fish crossing the Channel and the area West of Brittany does not suggest a separation of the Divisions VIId from VIIe and VIIh. Therefore a split of the population between the Ecoregions does not seem appropriate. Further investigations are needed to progress on stocks boundaries such as morphometric studies, tagging and genetic population studies. Red gurnard feeds on a variety of small invertebrates, bottom dwelling fish and benthic shellfish and crustaceans. Length at first maturity has been reported at approximately 25cm. Spawning occurs between February and June. Currently, all red gurnards in the Northeast Atlantic are treated as a single stock. Considering their behaviour, future assessment and management should identify and treat separate spawning aggregations independently. Red gurnard is mainly taken as a bycatch in mixed demersal fisheries for flatfish and roundfish, as the market is limited a larger part of the gurnard catch is discarded. Gurnards have been landed as a mixed generic gurnard catch and therefore landings of red gurnard are uncertain. -
Clams, Cockles, Arkshells Aquaculture Production by Species and Country
120 Clams, cockles, arkshells Aquaculture production by species and country or area B-56 Clams, coques, arches Production de l'aquaculture par espèce et pays ou zone Q = t Almejas, berberechos, arcas Producción de acuicultura por especie y país o área V = USD 1 000 Species, country Espèce, pays 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 Especie, país t t t t t t t t t t Inflated ark ...B ...C Scapharca broughtonii 3,16(04)005,07 ACB Korea Rep 2 548 2 064 3 015 1 903 1 714 1 560 2 110 1 872 2 227 2 921 Species total Q 2 548 2 064 3 015 1 903 1 714 1 560 2 110 1 872 2 227 2 921 V 19 689 18 393 19 277 15 395 13 114 20 839 20 248 18 761 15 995 16 770 Blood cockle Arche granuleuse Arca del Pacífico occidental Anadara granosa 3,16(04)071,01 BLC Cambodia ... ... ... 495 600 F 700 F 800 900 F 1 000 F 1 300 F China 265 673 F 277 768 279 510 290 177 276 742 310 380 293 200 278 058 336 870 353 388 China,Taiwan - - - - - - - - - ... Korea Rep 3 226 5 063 28 372 1 637 2 966 1 155 1 616 2 232 1 590 954 Malaysia 59 521 45 674 49 620 61 138 64 938 78 025 57 544 42 132 F 40 172 F 40 454 Thailand 56 853 65 666 55 671 65 852 81 959 75 611 51 736 66 528 71 325 65 350 Species total Q 385 273 394 171 413 173 419 299 427 205 465 871 404 896 389 850 450 957 461 446 V 386 053 420 311 454 264 466 540 462 657 510 901 483 602 478 526 566 523 580 260 Grand ark Arche pied d'âne Arca casco de burro Anadara grandis 3,16(04)071,07 NDN El Salvador .. -
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ISOLATION AND COMMUNITY: THE THEME AND FORM OF WILLIAM MORRIS' POETRY AND PROSE Item Type text; Dissertation-Reproduction (electronic) Authors Balch, Dennis Robert, 1949- Publisher The University of Arizona. Rights Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author. Download date 09/10/2021 07:25:50 Link to Item http://hdl.handle.net/10150/289550 INFORMATION TO USERS This material was produced from a microfilm copy of the original document. While the most advanced technological means to photograph and reproduce this document have been used, the quality is heavily dependent upon the quality of the original submitted. The following explanation of techniques is provided to help you understand markings or patterns which may appear on this reproduction. 1.The sign or "target" for pages apparently lacking from the document photographed is "Missing Page(s)". If it was possible to obtain the missing page(s) or section, they are spliced into the film along with adjacent pages. This may have necessitated cutting thru an image and duplicating adjacent pages to insure you complete continuity. 2. When an image on the film is obliterated with a large round black mark, it is an indication that the photographer suspected that the copy may have moved during exposure and thus cause a blurred image. You will find a good image of the page in the adjacent frame. 3. When a map, drawing or chart, etc., was part of the material being photographed the photographer followed a definite method in "sectioning" the material. -
Impact of Windfarm OWEZ on the Local Macrobenthos Communiy
Impact of windfarm OWEZ on the local macrobenthos community report OWEZ_R_261_T1_20090305 R. Daan, M. Mulder, M.J.N. Bergman Koninklijk Nederlands Instituut voor Zeeonderzoek (NIOZ) This project is carried out on behalf of NoordzeeWind, through a sub contract with Wageningen-Imares Contents Summary and conclusions 3 Introduction 5 Methods 6 Results boxcore 11 Results Triple-D dredge 13 Discussion 16 References 19 Tables 21 Figures 33 Appendix 1 44 Appendix 2 69 Appendix 3 72 Photo’s by Hendricus Kooi 2 Summary and conclusions In this report the results are presented of a study on possible short‐term effects of the construction of Offshore Windfarm Egmond aan Zee (OWEZ) on the composition of the local benthic fauna living in or on top of the sediment. The study is based on a benthic survey carried out in spring 2007, a few months after completion of the wind farm. During this survey the benthic fauna was sampled within the wind farm itself and in 6 reference areas lying north and south of it. Sampling took place mainly with a boxcorer, but there was also a limited programme with a Triple‐D dredge. The occurrence of possible effects was analyzed by comparing characteristics of the macrobenthos within the wind farm with those in the reference areas. A quantitative comparison of these characteristics with those observed during a baseline survey carried out 4 years before was hampered by a difference in sampling design and methodological differences. The conclusions of this study can be summarized as follows: 1. Based on the Bray‐Curtis index for percentage similarity there appeared to be great to very great similarity in the fauna composition of OWEZ and the majority of the reference areas. -
Morphological Variations of the Shell of the Bivalve Lucina Pectinata
I S S N 2 3 47-6 8 9 3 Volume 10 Number2 Journal of Advances in Biology Morphological variations of the shell of the bivalve Lucina pectinata (Gmelin, 1791) Emma MODESTIN PhD of Biogeography, zoology and Ecology University of the French Antilles, UMR AREA DEV ABSTRACT In Martinique, the species Lucina pectinata (Gmelin, 1791) is called "mud clam, white clam or mangrove clam" by bivalve fishermen depending on the harvesting environment. Indeed, the individuals collected have differences as regards the shape and colour of the shell. The hypothesis is that the shape of the shell of L. pectinata (P. pectinatus) shows significant variations from one population to another. This paper intends to verify this hypothesis by means of a simple morphometric study. The comparison of the shape of the shell of individuals from different populations was done based on samples taken at four different sites. The standard measurements (length (L), width or thickness (E - épaisseur) and height (H)) were taken and the morphometric indices (L/H; L/E; E/H) were established. These indices of shape differ significantly among the various populations. This intraspecific polymorphism of the shape of the shell of P. pectinatus could be related to the nature of the sediment (granulometry, density, hardness) and/or the predation. The shells are significantly more elongated in a loose muddy sediment than in a hard muddy sediment or one rich in clay. They are significantly more convex in brackish environments and this is probably due to the presence of more specialised predators or of more muddy sediments. Keywords Lucina pectinata, bivalve, polymorphism of shape of shell, ecology, mangrove swamp, French Antilles. -
Jolanta KEMPTER*, Maciej KIEŁPIŃSKI, Remigiusz PANICZ, and Sławomir KESZKA
ACTA ICHTHYOLOGICA ET PISCATORIA (2016) 46 (4): 287–291 DOI: 10.3750/AIP2016.46.4.02 MICROSATELLITE DNA-BASED GENETIC TRACEABILITY OF TWO POPULATIONS OF SPLENDID ALFONSINO, BERYX SPLENDENS (ACTINOPTERYGII: BERYCIFORMES: BERYCIDAE)—PROJECT CELFISH—PART 2 Jolanta KEMPTER*, Maciej KIEŁPIŃSKI, Remigiusz PANICZ, and Sławomir KESZKA Division of Aquaculture, West Pomeranian University of Technology, Szczecin, Kazimierza Krolewicza 4, 71-550 Szczecin, Poland Kempter J., Kiełpinski M., Panicz R., Keszka S. 2016. Microsatellite DNA-based genetic traceability of two populations of splendid alfonsino, Beryx splendens (Actinopterygii: Beryciformes: Berycidae)— Project CELFISH—Part 2. Acta Ichthyol. Piscat. 46 (4): 287–291. Background. The study is a contribution to Project CELFISH which involves genetic identifi cation of populations of fi sh species presenting a particular economic importance or having a potential to be used in the so-called commercial substitutions. The EU fi sh trade has been showing a distinct trend of more and more fi sh species previously unknown to consumers being placed on the market. Molecular assays have become the only way with which to verify the reliability of exporters. This paper is aimed at pinpointing genetic markers with which to label and differentiate between two populations of splendid alfonsino, Beryx splendens Lowe, 1834, a species highly attractive to consumers in Asia and Oceania due to the meat taste and low fat content. Material and methods. DNA was isolated from fragments of fi ns collected at local markets in Japan (MJ) (n = 10) and New Zealand (MNZ) (n = 18). The rhodopsin gene (RH1) fragment and 16 microsatellite DNA fragments (SSR) were analysed in all the individuals. -
Chub Mackerel, Scomber Japonicus (Perciformes: Scombridae), a New Host Record for Nerocila Phaiopleura (Isopoda: Cymothoidae)
生物圏科学 Biosphere Sci. 56：7－11 (2017) Chub mackerel, Scomber japonicus (Perciformes: Scombridae), a new host record for Nerocila phaiopleura (Isopoda: Cymothoidae) 1) 2) Kazuya NAGASAWA * and Hiroki NAKAO 1) Graduate School of Biosphere Science, Hiroshima University, 1-4-4 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8528, Japan 2) Fisheries Research Division, Oita Prefectural Agriculture, Forestry and Fisheries Research Center, Kamiura, Saeki, Oita 879-2602, Japan Abstract An ovigerous female of Nerocila phaiopleura Bleeker, 1857 was collected from the caudal peduncle of a chub mackerel, Scomber japonicus Houttuyn, 1782 (Perciformes: Scombridae), at the Hōyo Strait located between the western Seto Inland Sea and the Bungo Channell in western Japan. This represents a new host record for N. phaioplueura and its fourth record from the Seto Inland Sea and adjacent region. Key words: Cymothoidae, fish parasite, Isopoda, Nerocila phaiopleura, new host record, Scomber japonicus INTRODUCTION The Hōyo Strait is located between the western Seto Inland Sea and the Bungo Channell in western Japan. This strait is famous as a fishing ground of two perciform fishes of high quality, viz., chub mackerel, Scomber japonicus Houttuyn, 1782 (Scombridae), and Japanese jack mackerel, Trachurus japonicus (Temminck and Schlegel, 1844) (Carangidae), both of which are currently called“ Seki-saba” and“ Seki-aji”, respectively, as registered brands (e.g., Ishida and Fukushige, 2010). The brand names are well known nationwide, and the price of the fishes is very high (up to 5,000 yen per kg). Under these situations, the fishermen working in the strait pay much attention to the parasites of the fishes they catch because those fishes are almost exclusively eaten raw as“ sashimi.” Recently, a chub mackerel infected by a large parasite on the body surface (Fig. -
Does Climate Change Bolster the Case for Fishery Reform in Asia? Christopher Costello∗
Does Climate Change Bolster the Case for Fishery Reform in Asia? Christopher Costello∗ I examine the estimated economic, ecological, and food security effects of future fishery management reform in Asia. Without climate change, most Asian fisheries stand to gain substantially from reforms. Optimizing fishery management could increase catch by 24% and profit by 34% over business- as-usual management. These benefits arise from fishing some stocks more conservatively and others more aggressively. Although climate change is expected to reduce carrying capacity in 55% of Asian fisheries, I find that under climate change large benefits from fishery management reform are maintained, though these benefits are heterogeneous. The case for reform remains strong for both catch and profit, though these numbers are slightly lower than in the no-climate change case. These results suggest that, to maximize economic output and food security, Asian fisheries will benefit substantially from the transition to catch shares or other economically rational fishery management institutions, despite the looming effects of climate change. Keywords: Asia, climate change, fisheries, rights-based management JEL codes: Q22, Q28 I. Introduction Global fisheries have diverged sharply over recent decades. High governance, wealthy economies have largely adopted output controls or various forms of catch shares, which has helped fisheries in these economies overcome inefficiencies arising from overfishing (Worm et al. 2009) and capital stuffing (Homans and Wilen 1997), and allowed them to turn the corner toward sustainability (Costello, Gaines, and Lynham 2008) and profitability (Costello et al. 2016). But the world’s largest fishing region, Asia, has instead largely pursued open access and input controls, achieving less long-run fishery management success (World Bank 2017). -
A Review of the Biology for Pacific Saury, Cololabis Saira in the North
North Pacific Fisheries Commission NPFC-2019-SSC PSSA05-WP13 (Rev. 1) A review of the biology for Pacific saury, Cololabis saira in the North Pacific Ocean Taiki Fuji1*, Satoshi Suyama2, Shin-ichiro Nakayama3, Midori Hashimoto1, Kazuhiro Oshima1 1National Research Institute of Far Seas Fisheries, Japan Fisheries Research and Education Agency 2Tohoku national Fisheries Research Institute, Japan Fisheries Research and Education Agency 3National Research Institute of Fisheries Science, Fisheries Research and Education Agency *Corresponding author’s email address: [email protected] Contents 1. Introduction…………………………………………………………………………………………2 2. Stock identity……………………………………………………………………………………….2 3. Early life history……………………………………………………………………………………2 3-1. Spawning ground………………………………………………………………………………2 3-2. Larval transportation……………………………………………………………………………3 3-3. Recruitment variability………………………………………………………………………….4 4. Feeding habits and predators…………………………………………………………………………4 5. Growth………………………………………………………………………………………………..5 6. Maturation…………………………………………………………………………………………….5 6-1. Spawning pattern, fecundity and spawning duration…………………………………………….5 6-2. Seasonal change of maturity size………………………………...................................................6 6-3. Maturation schedule for each seasonal cohort considering growth and maturation size…………6 6-4. Maturation and environmental factors……………………………………………………………7 6-5. Percentage of matured fish………………………………………………………………………..7 7. Distribution and migration…………………………………………………………………………….7 8. Natural mortality………………………………………………………………………………………9 -
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. -
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.