King Scallop (Pecten Maximus)
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Diseases Affecting Finfish
Diseases Affecting Finfish Legislation Ireland's Exotic / Disease Name Acronym Health Susceptible Species Vector Species Non-Exotic Listed National Status Disease Measures Bighead carp (Aristichthys nobilis), goldfish (Carassius auratus), crucian carp (C. carassius), Epizootic Declared Rainbow trout (Oncorhynchus mykiss), redfin common carp and koi carp (Cyprinus carpio), silver carp (Hypophtalmichthys molitrix), Haematopoietic EHN Exotic * Disease-Free perch (Percha fluviatilis) Chub (Leuciscus spp), Roach (Rutilus rutilus), Rudd (Scardinius erythrophthalmus), tench Necrosis (Tinca tinca) Beluga (Huso huso), Danube sturgeon (Acipenser gueldenstaedtii), Sterlet sturgeon (Acipenser ruthenus), Starry sturgeon (Acipenser stellatus), Sturgeon (Acipenser sturio), Siberian Sturgeon (Acipenser Baerii), Bighead carp (Aristichthys nobilis), goldfish (Carassius auratus), Crucian carp (C. carassius), common carp and koi carp (Cyprinus carpio), silver carp (Hypophtalmichthys molitrix), Chub (Leuciscus spp), Roach (Rutilus rutilus), Rudd (Scardinius erythrophthalmus), tench (Tinca tinca) Herring (Cupea spp.), whitefish (Coregonus sp.), North African catfish (Clarias gariepinus), Northern pike (Esox lucius) Catfish (Ictalurus pike (Esox Lucius), haddock (Gadus aeglefinus), spp.), Black bullhead (Ameiurus melas), Channel catfish (Ictalurus punctatus), Pangas Pacific cod (G. macrocephalus), Atlantic cod (G. catfish (Pangasius pangasius), Pike perch (Sander lucioperca), Wels catfish (Silurus glanis) morhua), Pacific salmon (Onchorhynchus spp.), Viral -
Imported Food Risk Statement Bivalve Molluscs and Domoic Acid
Imported food risk statement Bivalve molluscs and domoic acid Commodity: Bivalve Molluscs. This includes whole or portions of bivalve molluscs that are fresh, frozen, dried or canned, such as cockles, clams, mussels, oysters and scallops. The following products are excluded and therefore not covered by this risk statement: cephalopod molluscs (e.g. squid, octopus, cuttlefish) and jelly fish marinara mix. Analyte: Domoic acid (DA) Recommendation and rationale Is DA in bivalve molluscs a medium or high risk to public health: Yes No Uncertain, further scientific assessment required Rationale: Consumption of seafood containing DA has resulted in human poisoning incidents and deaths. DA is a potent neurotoxin that causes amnesic shellfish poisoning (ASP) within 24-48 hours following ingestion. There is no antidote for ASP. DA is not destroyed by cooking, freezing or other food processing. General description Nature of the analyte: DA is a water-soluble, non-protein amino acid. It is produced by some marine diatoms of the genus Pseudo- nitzschia spp., which are likely to be present to some extent in most coastal marine environments. Isomers of DA are less toxic. Domoic acid is not reliably destroyed by common cooking methods (Vidal et al. 2009) or by autoclaving (McCarron and Hess 2006). Adverse health effects: DA is a potent neurotoxin that causes amnesic shellfish poisoning (ASP) within 24-48 hours following ingestion. There is no antidote for ASP. Clinical signs of acute DA toxicity (or ASP) are mild gastrointestinal symptoms (vomiting, diarrhoea, and abdominal pain) from an oral dose ranging between 0.9 and 2 mg DA/kg bw. -
Miscellaneous Mollusc Resources of Pacific Islands
SPC/lnshore Fish. Res./WP2 29 February 1988 ORIGINAL : ENGLISH ( Noumea, New Caledonia, 14-25 March 1988) HISCELLANEOUS MOLLUSC RESOURCES OF PACIFIC ISLANDS BY Dr A.D. Lewis Introduction l Molluscs (Phylum Molluscs) we a diverse array of "shellfish", which include bivalves (clams, cockles, oysters, mussels - Class Pelecypoda) ,gastropods ( snails, abalone, seahares- Class Gastropods) and cephalopods (squids, octopus, cuttlefish - Class Cephalopoda). These support large marine fisheries, world landings of molluscs exceeding 6 millions tonnes in 1985 (Anon, 1987) and dominated by cephalopods ( 1.67 million mt,), clams, cockles and arkshells ( 1.6 1 million mt.) and oysters ( 1.03 million mt). 2. Previous sessions at the workshop have considered in detail the molluscs of major commercial importance to Pacific Islands. This include molluscs harvested primarily for Industrial purposes (eg. trochus, green snail and pearl shell, for their nacreous shell interiors) as well as those harvested primarily for human consumption (giant clams). 3. There is in addition, however a wide range of molluscs harvested throughout the Pacific Islands for subsistence purposes and in some cases small scale commercial exploitation. Many are gleaned from a variety of inshore habitats, including mud flats, mangrove roots, sandy beaches, reef flats and rubble areas. These molluscs are commonly collected by women, and have traditionally served as important reserve food sources during times of bad weather or poor line fishing. In (tensely populated atolls, they may become a primary fooAsource, Zann ( 1985) noting that in South Tarawa (Kiribati), landings of three lagoon bivalves exceed that of all finfish combined. 4. Othermoreactivemolluscsaretakenwithluresorbaits(cephalopoda).whilstothers are trawled (scallops). -
Giant Pacific Octopus (Enteroctopus Dofleini) Care Manual
Giant Pacific Octopus Insert Photo within this space (Enteroctopus dofleini) Care Manual CREATED BY AZA Aquatic Invertebrate Taxonomic Advisory Group IN ASSOCIATION WITH AZA Animal Welfare Committee Giant Pacific Octopus (Enteroctopus dofleini) Care Manual Giant Pacific Octopus (Enteroctopus dofleini) Care Manual Published by the Association of Zoos and Aquariums in association with the AZA Animal Welfare Committee Formal Citation: AZA Aquatic Invertebrate Taxon Advisory Group (AITAG) (2014). Giant Pacific Octopus (Enteroctopus dofleini) Care Manual. Association of Zoos and Aquariums, Silver Spring, MD. Original Completion Date: September 2014 Dedication: This work is dedicated to the memory of Roland C. Anderson, who passed away suddenly before its completion. No one person is more responsible for advancing and elevating the state of husbandry of this species, and we hope his lifelong body of work will inspire the next generation of aquarists towards the same ideals. Authors and Significant Contributors: Barrett L. Christie, The Dallas Zoo and Children’s Aquarium at Fair Park, AITAG Steering Committee Alan Peters, Smithsonian Institution, National Zoological Park, AITAG Steering Committee Gregory J. Barord, City University of New York, AITAG Advisor Mark J. Rehling, Cleveland Metroparks Zoo Roland C. Anderson, PhD Reviewers: Mike Brittsan, Columbus Zoo and Aquarium Paula Carlson, Dallas World Aquarium Marie Collins, Sea Life Aquarium Carlsbad David DeNardo, New York Aquarium Joshua Frey Sr., Downtown Aquarium Houston Jay Hemdal, Toledo -
Pecten Maximus) Sea-Ranching in Norway – Lessons Learned
Scallop (Pecten maximus) sea-ranching in Norway – lessons learned Ellen Sofie Grefsrud, Tore Strohmeier & Øivind Strand Background - Sea ranching in Norway • 1990-1997: Program to develop and encourage sea ranching (PUSH) • Focus on four species • Atlantic salmon (Salmo salar) • Atlantic cod (Gadus morhua) • Arctic char (Salvelinus alpinus) • European lobster (Homarus gammarus) • Only lobster showed an economic potential Grefsrud et. al, 6th ISSESR, 11-14 November, Sarasota FL, USA Background - Scallop sea ranching • 1980-90’s – a growing interest on scallop Pecten maximus cultivation in Norway • Based on suspended culture (1980’s) – labour costs high • European concensus that seeding on bottom was the most viable option • First experimental releases i Norway in mid-1990’s Photo: IMR Photo: IMR Grefsrud et. al, 6th ISSESR, 11-14 November, Sarasota FL, USA Production model Pecten maximus • Hatchery + nursery – larvae + 2-20 mm shell height • Intermediate culture – 20-55 mm • Grow-out on seabed – 55->100 mm Photo: IMR Three production steps to lower risk for investors and increase the profit in each step Time aspect – four-five years from hatchery to market sized scallops Grefsrud et. al, 6th ISSESR, 11-14 November, Sarasota FL, USA Hatchery + nursery • Established a commercial hatchery, Scalpro Photo: S. Andersen • Industry + research developed methodolgy for producing spat on a commercial scale • Larvae phase • Antibiotics and probiotica to prevent bacterial outbreaks (early phase) • Continous flow-through in larvae tank and increased volume • No use of antibiotics in commercial production • From hatching to spat in about three weeks Photo: IMR Grefsrud et. al, 6th ISSESR, 11-14 November, Sarasota FL, USA Hatchery + nursery • Transferred from hatchery to nursery in the sea at 2-4 mm • Land based race-way system – 2-20 mm Photo: IMR • Flow-through filtered sea water • Reduced predation and fouling • The commercial hatchery, Scalpro, covered both the hatchey and nursery phase Photo: IMR Grefsrud et. -
Amnesic Shellfish Poisoning Toxins in Bivalve Molluscs in Ireland
Amnesic shellfish poisoning toxins in bivalve molluscs in Ireland Kevin J. Jamesa,*, Marion Gillmana,Mo´nica Ferna´ndez Amandia, Ame´rico Lo´pez-Riverab, Patricia Ferna´ndez Puentea, Mary Lehanea, Simon Mitrovica, Ambrose Fureya aPROTEOBIO, Mass Spectrometry Centre for Proteomics and Biotoxin Research, Department of Chemistry, Cork Institute of Technology, Bishopstown, Cork, Ireland bMarine Toxins Laboratory, Biomedical Sciences Institute, Faculty of Medicine, University of Chile, Santiago, Chile Abstract In December 1999, domoic acid (DA) a potent neurotoxin, responsible for the syndrome Amnesic Shellfish Poisoning (ASP) was detected for the first time in shellfish harvested in Ireland. Two liquid chromatography (LC) methods were applied to quantify DA in shellfish after sample clean-up using solid-phase extraction (SPE) with strong anion exchange (SAX) cartridges. Toxin detection was achieved using photodiode array ultraviolet (LC-UV) and multiple tandem mass spectrometry (LC-MSn). DA was identified in four species of bivalve shellfish collected along the west and south coastal regions of the Republic of Ireland. The amount of DA that was present in three species was within EU guideline limits for sale of shellfish (20 mg DA/g); mussels (Mytilus edulis), !1.0 mg DA/g; oysters (Crassostrea edulis), !5.0 mg DA/g and razor clams (Ensis siliqua), !0.3 mg DA/g. However, king scallops (Pecten maximus) posed a significant human health hazard with levels up to 240 mg DA/g total tissues. Most scallop samples (55%) contained DA at levels greater than the regulatory limit. The DA levels in the digestive glands of some samples of scallops were among the highest that have ever been recorded (2820 mg DA/g). -
Embryonic and Larval Development of Ensis Arcuatus (Jeffreys, 1865) (Bivalvia: Pharidae)
EMBRYONIC AND LARVAL DEVELOPMENT OF ENSIS ARCUATUS (JEFFREYS, 1865) (BIVALVIA: PHARIDAE) FIZ DA COSTA, SUSANA DARRIBA AND DOROTEA MARTI´NEZ-PATIN˜O Centro de Investigacio´ns Marin˜as, Consellerı´a de Pesca e Asuntos Marı´timos, Xunta de Galicia, Apdo. 94, 27700 Ribadeo, Lugo, Spain (Received 5 December 2006; accepted 19 November 2007) ABSTRACT The razor clam Ensis arcuatus (Jeffreys, 1865) is distributed from Norway to Spain and along the British coast, where it lives buried in sand in low intertidal and subtidal areas. This work is the first study to research the embryology and larval development of this species of razor clam, using light and scanning electron microscopy. A new method, consisting of changing water levels using tide simulations with brief Downloaded from https://academic.oup.com/mollus/article/74/2/103/1161011 by guest on 23 September 2021 dry periods, was developed to induce spawning in this species. The blastula was the first motile stage and in the gastrula stage the vitelline coat was lost. The shell field appeared in the late gastrula. The trocho- phore developed by about 19 h post-fertilization (hpf) (198C). At 30 hpf the D-shaped larva showed a developed digestive system consisting of a mouth, a foregut, a digestive gland followed by an intestine and an anus. Larvae spontaneously settled after 20 days at a length of 378 mm. INTRODUCTION following families: Mytilidae (Redfearn, Chanley & Chanley, 1986; Fuller & Lutz, 1989; Bellolio, Toledo & Dupre´, 1996; Ensis arcuatus (Jeffreys, 1865) is the most abundant species of Hanyu et al., 2001), Ostreidae (Le Pennec & Coatanea, 1985; Pharidae in Spain. -
Panopea Abrupta ) Ecology and Aquaculture Production
COMPREHENSIVE LITERATURE REVIEW AND SYNOPSIS OF ISSUES RELATING TO GEODUCK ( PANOPEA ABRUPTA ) ECOLOGY AND AQUACULTURE PRODUCTION Prepared for Washington State Department of Natural Resources by Kristine Feldman, Brent Vadopalas, David Armstrong, Carolyn Friedman, Ray Hilborn, Kerry Naish, Jose Orensanz, and Juan Valero (School of Aquatic and Fishery Sciences, University of Washington), Jennifer Ruesink (Department of Biology, University of Washington), Andrew Suhrbier, Aimee Christy, and Dan Cheney (Pacific Shellfish Institute), and Jonathan P. Davis (Baywater Inc.) February 6, 2004 TABLE OF CONTENTS LIST OF FIGURES ........................................................................................................... iv LIST OF TABLES...............................................................................................................v 1. EXECUTIVE SUMMARY ....................................................................................... 1 1.1 General life history ..................................................................................... 1 1.2 Predator-prey interactions........................................................................... 2 1.3 Community and ecosystem effects of geoducks......................................... 2 1.4 Spatial structure of geoduck populations.................................................... 3 1.5 Genetic-based differences at the population level ...................................... 3 1.6 Commercial geoduck hatchery practices ................................................... -
Pecten Maximus
Assessing the association between scallops, Pecten Maximus, and the benthic ecosystem within the Isle of Man marine reserves A thesis submitted in partial fulfilment of the requirements for the degree of Master of Science (MSc) in Marine Environmental Protection. Chyanna Allison Bsc Marine Biology with International Experience (2015, Bangor University) Supervisor: Michel J. Kaiser, Isobel Bloor and Jack Emmerson School of Ocean Sciences, College of Natural Sciences Bangor University, Gwynedd, LL57 2UW, UK September 2016 DECLARATION This work has not previously been accepted in substance for any degree and is not being concurrently submitted in candidature for any degree. Signed: Chyanna Allison Date: 16/09/16 STATEMENT 1: This thesis is the result of my own investigations, except where otherwise stated. Where correction services have been used, the extent and nature of the correction is clearly marked in a footnote(s). Other sources are acknowledged by footnotes giving explicit references. A bibliography is appended. Signed: Chyanna Allison Date: 16/09/16 STATEMENT 2: I hereby give consent for my thesis, if accepted, to be available for photocopying and for inter- library loan, and for the title and summary to be made available to outside organisations. Signed: Chyanna Allison Date: 16/09/16 NB: Candidates on whose behalf a bar on access has been approved by the University should use the following version of Statement 2: I hereby give consent for my thesis, if accepted, to be available for photocopying and for inter- library loans after expiry of a bar on access approved by the University. Signed: Chyanna Allison Date: 16/09/16 i | P a g e Abstract The increased threat to the world’s marine environment has forced the use of management strategies that encourage resource sustainability like spatial closure and stock replenishment. -
The Biology and Ecology of the Common Cuttlefish (Sepia Officinalis)
Supporting Sustainable Sepia Stocks Report 1: The biology and ecology of the common cuttlefish (Sepia officinalis) Daniel Davies Kathryn Nelson Sussex IFCA 2018 Contents Summary ................................................................................................................................................. 2 Acknowledgements ................................................................................................................................. 2 Introduction ............................................................................................................................................ 3 Biology ..................................................................................................................................................... 3 Physical description ............................................................................................................................ 3 Locomotion and respiration ................................................................................................................ 4 Vision ................................................................................................................................................... 4 Chromatophores ................................................................................................................................. 5 Colour patterns ................................................................................................................................... 5 Ink sac and funnel organ -
Reproduction and Larval Development of the New Zealand Scallop, Pecten Novaezelandiae
Reproduction and larval development of the New Zealand scallop, Pecten novaezelandiae. Neil E. de Jong A thesis submitted to Auckland University of Technology in partial fulfilment of the requirements for the degree of Master of Science (MSc) 2013 School of Applied Science Table of Contents TABLE OF CONTENTS ...................................................................................... I TABLE OF FIGURES ....................................................................................... IV TABLE OF TABLES ......................................................................................... VI ATTESTATION OF AUTHORSHIP ................................................................. VII ACKNOWLEDGMENTS ................................................................................. VIII ABSTRACT ....................................................................................................... X 1 CHAPTER ONE: INTRODUCTION AND LITERATURE REVIEW .............. 1 1.1 Scallop Biology and Ecology ........................................................................................ 2 1.1.1 Diet ............................................................................................................................... 4 1.2 Fisheries and Aquaculture ............................................................................................ 5 1.2.1 Scallop Enhancement .................................................................................................. 8 1.2.2 Hatcheries ................................................................................................................. -
Os Nomes Galegos Dos Moluscos 2020 2ª Ed
Os nomes galegos dos moluscos 2020 2ª ed. Citación recomendada / Recommended citation: A Chave (20202): Os nomes galegos dos moluscos. Xinzo de Limia (Ourense): A Chave. https://www.achave.ga /wp!content/up oads/achave_osnomesga egosdos"mo uscos"2020.pd# Fotografía: caramuxos riscados (Phorcus lineatus ). Autor: David Vilasís. $sta o%ra est& su'eita a unha licenza Creative Commons de uso a%erto( con reco)ecemento da autor*a e sen o%ra derivada nin usos comerciais. +esumo da licenza: https://creativecommons.org/ icences/%,!nc-nd/-.0/deed.g . Licenza comp eta: https://creativecommons.org/ icences/%,!nc-nd/-.0/ ega code. anguages. 1 Notas introdutorias O que cont!n este documento Neste recurso léxico fornécense denominacións para as especies de moluscos galegos (e) ou europeos, e tamén para algunhas das especies exóticas máis coñecidas (xeralmente no ámbito divulgativo, por causa do seu interese científico ou económico, ou por seren moi comúns noutras áreas xeográficas) ! primeira edición d" Os nomes galegos dos moluscos é do ano #$%& Na segunda edición (2$#$), adicionáronse algunhas especies, asignáronse con maior precisión algunhas das denominacións vernáculas galegas, corrixiuse algunha gralla, rema'uetouse o documento e incorporouse o logo da (have. )n total, achéganse nomes galegos para *$+ especies de moluscos A estrutura )n primeiro lugar preséntase unha clasificación taxonómica 'ue considera as clases, ordes, superfamilias e familias de moluscos !'uí apúntanse, de maneira xeral, os nomes dos moluscos 'ue hai en cada familia ! seguir