Synopsis of Biological Data on the Norway Lobster Nephrops Norvegicus

Total Page:16

File Type:pdf, Size:1020Kb

Synopsis of Biological Data on the Norway Lobster Nephrops Norvegicus FAO Fisheries Synopsis No. 112 FIRS/S112 (Distribution restricted) SAST Norway Lobster 2,29(04,006,02 SYNOPSIS OF BIOLOGICAL DATA ON THE NORWAY LOBSTER Nephrops norvegicus (Linnaeus, 1758) F O FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS '41 r DOCUMENTS OF THE FISHERY RESOURCES DOCUMENTS DE LADIVISIONDES RES- DOCUMENTOS DE LA DIRECCION DE RECURSOS DIVISION OF FAO DEPARTMENT OF FISHERIES SOURCES HALIEUTIQUES DU DEPARTEMENT PESQUEROS DEL DEPARTAMENTO DE PESCA DES PECHES DE LA FAO DE LA FAO Documents which are not official FAO publications Des documents qui ne figurent pas parmiles Esta Dirección publica varias series de documentos areissuedinseveralseries.They aregiven'a publications officielles de la FAO sont publiés dans que no pueden considerarse como publicaciones restricted distribution and this fact should be indicated diversesseries. lisfontseulementl'objet d'une oficiales de la FAO. Todos ellos tienen distribución if they are cited. Most of them are prepared as distribution restreinte, aussi convient-il de le preciser limitada, circunstancia que debe indicarse en el caso working papers for meetings, or are summaries of lorsque ces documents sont cites.IIs'agit le plus de ser citados. La mayoria de los titulos que figuran informationfor use ofMemberGovernments, souvent de documents de travail prepares pour des en dichas series son documentos de trabajo prepara- organizations, and specialists concerned. These series reunions, ou de resumes d'information à l'intention dos para reunioneso resúmenes dé información are the following: des gouvernements des pays membres, ainsi que des destinados a los estados miembros, organizaciones y organisations et spécialis-tes intéressés. Ces series sont especialistas interesados. Estas series son las siguientes: les su iva ates: FAO Fisheries Report FIR7R (No.) FAO Fisheries Circular FIR/C (No.) FAO Fisheries Synopsis FIR/S (No.) FAO, Rapports sur les pitches FAO, Circulaire des Ochos Synopsis FAO sur les péches FAO Informes de pesca Circular de Pesca de la FAO Sinopsis FAO sobre la pesca Spec algroups of synopses areidentifiedby Des categories spéciales de synopses sont identifiées Grupos especiales de sinopsis se distinguen con symbols followed by classification numbers based on l'aide de symboles suivis des chiffres de classification lassiglassiguientes,seguidaspornúmerosde indexed code of "ASFA": bases sur le code d'indexation de la e ASFA »: clasificación que se basan enlasclaves delos Indices de la eASFA»: SASTData concerningcertain species andfish SAST Données sur certaines especes et populations SAST Datos relativos a ciertas especies y stocks de poissons poblaciones MAST Information on methods and subjects fV1AST Renseignements sur des méthodes et des sujets MAST Sinopsis sobre métodos y materias oT Oceanographic data OT Données océanographiques OT Sinopsis sobre oceanograffa IT Limnological data IT Données limnologiques IT Sinopsis sobre tirando& FAO Fisheries Technical Papers FIR /T (No.) Documents techniques FAO sur les péches Documentos técnicos de la FAO sobre la pesca Special groups of Technical Papers are identified by: Des catégories spéciales de documents techniques Grupos especiales de documentos técnicosse sont identifiées à raide des symboles suivants: identifican por las siglas siguientes: RE Indexed lists of experts and institutions drawn RE Listes indexées d'experts et institutions tirées RE Listas índices de expertos y de instituciones from Registers maintained by theFishery des registres tenus à jour par la Division des tomadas de los registros que se llevan en la Resources Division ressources halieutiques Dirección de Recursos Pesqueros IN Provisional editions of inventories andlists IN Editions provisoires des listeset inventaires IN Ediciones provisionales de los inventarios y of fishery data stored and maintained by the concernantlesdonnéessurlespdches listas de datosdepesca acumulados y FAO Fishery Data Centre accumulées et mises 6 jour par le Centre guardados por el Centro de Datos Pesqueros de donnees halieutiques de la FAO de la FAO CB Listsofperiodicals,specialsectionsof CB Listes de périodiques, des sections spéciales CB Listas de periódicos, secciones especiales de "Aquatic Sciences and Fisheries Abstracts de la«Aquatic Sciences andFisheries la «Aquatic Sciences and Fisheries Abstracts IASFA)," special bibliographies and papers Abstracts (ASFA)», des bibliographies parti- (ASFA)», bibliografías especiales y trabajos concerning documentation problems culieres et des articles sur les problemes de relativos a los problemas de documentación documentation MFS Provisionaleditions of "FAO Manualsin MFS Editions provisoires des «Manuels FAO de MFS Ediciones provisionales de los «Manuales de Fisheries Science" science halieutique» la FAO de Ciencias Pesqueras» WAFR Provisional reviews of fisheries resources and WAFR Syntheses provisoires des ressources halieuti- WAFR Resalas provisionales de los recursos their level of exploitation, by regions or by ques et leur niveau d'exploitation, préparées, pesquerosyde su estadoactualde species groups, within the WorldAppraisal par régions ou groupes d'especes, dans le explotación, por regiones o por grupos de of Fishery Resources system cadre du Programme mondial pour révaluation especies, en el marco del sistema mundial des ressources halieutiques para la evaluación de los recursos pesqueros Some documents also have another identification, Certains documents portent parfois d'autres nume- Algunos documentos tienen también otra identi- if,for example, they have been contributed to a ras d'identification, par exemple s'ils ont été prepares ficación si, por ejemplo, son contribuciones a una meetingfor which papers have been numbered pour uneréunion dontlesdocumentsontété reunión cuyos documentos han sido marcados con according to another system. marqués à raide d'un autre systeme. arreglo a otros sistemas. FAO Fisheries Synopsis No, 112 FIRS/S112 Dis ribution restricted SAST Norwa lobster 02 006 02 SYNOPSIS OF BIOLOGICAL DATA ON PEE NORWAY LOBSTER Nephrops norvegicus (Linnaeus, 1758) Prepared by A.S.D. Farmer Fisheries Resources Bureau Ministry of Development and Engineering Services P.O. Box 235 State of Bahrain (Formerly at: Department of Marine Biology University of Liverpool Port Erin Isle of Man) FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS ' Rome, September 1975 The designations employed and the presentation of material in this publication do not imply the expression of any opinion whatsoever on the part of the Food and Agriculture Organization of the United Nations concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimi- tation of its frontiers or boundaries. The copyright in this book is vested in the Food and Agriculture Organization of the United Nations.The book may not be reproduced, in whole or in part, by any method or process, without written permission from the copyright holder. Applications for such permission, with a statement of the purpose and 'extent of the reproduction desired, should be addressed to the Director, Publications Division, Food and Agriculture Organization of the United Nations, Via delle Terme di Caracalla, 00100 Rome, Italy. (E)FAO1975 PREPARATION OF THIS SYNOPSIS The purpose of this synopsis is to bring together the curreht information on the natural history and fishery of the Norway lobster, Nephrops norvegicus, and to draw attention to the major gaps in the information available on this species. The author is extremely grateful to Professor L.B. Holthuis (Rijksmuseum van Natuurlijke Historie, Leiden, The..Netherlands) for assistance with the taxonomic sections, and Dr. C.J. Chapman (Marine Laboratory, Aberdeen, Scotland), Dr. A.L. Rice (Institute of Oceanographic Sciences, Godalming, England) and Dr. D.I. Williamson (Department of Marine Biology, University of Liverpool, Isle of Man) for reading the manuscript and offering their many helpful suggestions. The author is also very much indebted to Mrs. M.S. Cunningham (Fisheries Resources Bureau, State of Bahrain), and to his wife, Mrs. Sarah K.H.D. Farmer, for their painstaking preparation of the various versions of the typescript, and particularly to Mrs. A.M. Barton (Librarian, Department of Marine Biology, University of Liverpool, Isle of Man) for the considerable time and effort she devoted to obtaining copies of obscure references, Distribution Bibliographic entry: FAO Department of Fisheries Farmer, A.S.D.(1975) FAO Regional Fisheries Officers FAO Fish.Sytop.,(112):97p. Regional Fisheries Councils and Synopsis of biological data on the Norway Commissions lobster Nephrops norvegicus (Linnaeus, Selector SM 1758) Author Nomenclature, Taxonomy. Morphology (organisms). Geographical distribution. Hybridization. Biometrics. ,Life history. Nutrition. Growth, Behaviour, Para- sites, Predators, Diseases. Disease control. Population structure. Popula- tion dynamics. ASE, Mediterranean, AME, North Ras Atlantic. RS-S112 Norwa lobster CONTENTS paya 1 IDENTITY 1 1.1 Nomenclature 1 1.11 Valid name 1 1.12Objective synonymy 1 1.2 Taxonomy 1 1.21 Affinities 1 1.22 Taxonomic status 1 1.23 Subspecies 3 1.24 Standard common names vernacular names 3 1.3 Morphology 3 1.31 External morphology 3 1.32Morphometrics 7 1.33 Internal morphology 9 1034 Cytomorphology 10 1.35Protein specificity 11 2 DISTRIBUTION 11 2.1 Total area 11 2.2 Differential distribution 13 2.21 Larvae 13 2.22Juveniles and adults 13 2.3 Determinants of distribution changes 13 2.31 Temperature 13 2.32
Recommended publications
  • Trends of Aquatic Alien Species Invasions in Ukraine
    Aquatic Invasions (2007) Volume 2, Issue 3: 215-242 doi: http://dx.doi.org/10.3391/ai.2007.2.3.8 Open Access © 2007 The Author(s) Journal compilation © 2007 REABIC Research Article Trends of aquatic alien species invasions in Ukraine Boris Alexandrov1*, Alexandr Boltachev2, Taras Kharchenko3, Artiom Lyashenko3, Mikhail Son1, Piotr Tsarenko4 and Valeriy Zhukinsky3 1Odessa Branch, Institute of Biology of the Southern Seas, National Academy of Sciences of Ukraine (NASU); 37, Pushkinska St, 65125 Odessa, Ukraine 2Institute of Biology of the Southern Seas NASU; 2, Nakhimova avenue, 99011 Sevastopol, Ukraine 3Institute of Hydrobiology NASU; 12, Geroyiv Stalingrada avenue, 04210 Kiyv, Ukraine 4Institute of Botany NASU; 2, Tereschenkivska St, 01601 Kiyv, Ukraine E-mail: [email protected] (BA), [email protected] (AB), [email protected] (TK, AL), [email protected] (PT) *Corresponding author Received: 13 November 2006 / Accepted: 2 August 2007 Abstract This review is a first attempt to summarize data on the records and distribution of 240 alien species in fresh water, brackish water and marine water areas of Ukraine, from unicellular algae up to fish. A checklist of alien species with their taxonomy, synonymy and with a complete bibliography of their first records is presented. Analysis of the main trends of alien species introduction, present ecological status, origin and pathways is considered. Key words: alien species, ballast water, Black Sea, distribution, invasion, Sea of Azov introduction of plants and animals to new areas Introduction increased over the ages. From the beginning of the 19th century, due to The range of organisms of different taxonomic rising technical progress, the influence of man groups varies with time, which can be attributed on nature has increased in geometrical to general processes of phylogenesis, to changes progression, gradually becoming comparable in in the contours of land and sea, forest and dimensions to climate impact.
    [Show full text]
  • Metanephrops Challengeri)
    Population genetics of New Zealand Scampi (Metanephrops challengeri) Alexander Verry A thesis submitted to Victoria University of Wellington in partial fulfilment of the requirements for the degree of Master of Science in Ecology and Biodiversity. Victoria University of Wellington 2017 Page | I Abstract A fundamental goal of fisheries management is sustainable harvesting and the preservation of properly functioning populations. Therefore, an important aspect of management is the identification of demographically independent populations (stocks), which is achieved by estimating the movement of individuals between areas. A range of methods have been developed to determine the level of connectivity among populations; some measure this directly (e.g. mark- recapture) while others use indirect measures (e.g. population genetics). Each species presents a different set of challenges for methods that estimate levels of connectivity. Metanephrops challengeri is a species of nephropid lobster that supports a commercial fishery and inhabits the continental shelf and slope of New Zealand. Very little research on population structure has been reported for this species and it presents a unique set of challenges compared to finfish species. M. challengeri have a short pelagic larval duration lasting up to five days which limits the dispersal potential of larvae, potentially leading to low levels of connectivity among populations. The aim of this study was to examine the genetic population structure of the New Zealand M. challengeri fishery. DNA was extracted from M. challengeri samples collected from the eastern coast of the North Island (from the Bay of Plenty to the Wairarapa), the Chatham Rise, and near the Auckland Islands. DNA from the mitochondrial CO1 gene and nuclear ITS-1 region was amplified and sequenced.
    [Show full text]
  • High Level Environmental Screening Study for Offshore Wind Farm Developments – Marine Habitats and Species Project
    High Level Environmental Screening Study for Offshore Wind Farm Developments – Marine Habitats and Species Project AEA Technology, Environment Contract: W/35/00632/00/00 For: The Department of Trade and Industry New & Renewable Energy Programme Report issued 30 August 2002 (Version with minor corrections 16 September 2002) Keith Hiscock, Harvey Tyler-Walters and Hugh Jones Reference: Hiscock, K., Tyler-Walters, H. & Jones, H. 2002. High Level Environmental Screening Study for Offshore Wind Farm Developments – Marine Habitats and Species Project. Report from the Marine Biological Association to The Department of Trade and Industry New & Renewable Energy Programme. (AEA Technology, Environment Contract: W/35/00632/00/00.) Correspondence: Dr. K. Hiscock, The Laboratory, Citadel Hill, Plymouth, PL1 2PB. [email protected] High level environmental screening study for offshore wind farm developments – marine habitats and species ii High level environmental screening study for offshore wind farm developments – marine habitats and species Title: High Level Environmental Screening Study for Offshore Wind Farm Developments – Marine Habitats and Species Project. Contract Report: W/35/00632/00/00. Client: Department of Trade and Industry (New & Renewable Energy Programme) Contract management: AEA Technology, Environment. Date of contract issue: 22/07/2002 Level of report issue: Final Confidentiality: Distribution at discretion of DTI before Consultation report published then no restriction. Distribution: Two copies and electronic file to DTI (Mr S. Payne, Offshore Renewables Planning). One copy to MBA library. Prepared by: Dr. K. Hiscock, Dr. H. Tyler-Walters & Hugh Jones Authorization: Project Director: Dr. Keith Hiscock Date: Signature: MBA Director: Prof. S. Hawkins Date: Signature: This report can be referred to as follows: Hiscock, K., Tyler-Walters, H.
    [Show full text]
  • The Role of Neaxius Acanthus
    Wattenmeerstation Sylt The role of Neaxius acanthus (Thalassinidea: Strahlaxiidae) and its burrows in a tropical seagrass meadow, with some remarks on Corallianassa coutierei (Thalassinidea: Callianassidae) Diplomarbeit Institut für Biologie / Zoologie Fachbereich Biologie, Chemie und Pharmazie Freie Universität Berlin vorgelegt von Dominik Kneer Angefertigt an der Wattenmeerstation Sylt des Alfred-Wegener-Instituts für Polar- und Meeresforschung in der Helmholtz-Gemeinschaft In Zusammenarbeit mit dem Center for Coral Reef Research der Hasanuddin University Makassar, Indonesien Sylt, Mai 2006 1. Gutachter: Prof. Dr. Thomas Bartolomaeus Institut für Biologie / Zoologie Freie Universität Berlin Berlin 2. Gutachter: Prof. Dr. Walter Traunspurger Fakultät für Biologie / Tierökologie Universität Bielefeld Bielefeld Meinen Eltern (wem sonst…) Table of contents 4 Abstract ...................................................................................................................................... 6 Zusammenfassung...................................................................................................................... 8 Abstrak ..................................................................................................................................... 10 Abbreviations ........................................................................................................................... 12 1 Introduction ..........................................................................................................................
    [Show full text]
  • Lobsters-Identification, World Distribution, and U.S. Trade
    Lobsters-Identification, World Distribution, and U.S. Trade AUSTIN B. WILLIAMS Introduction tons to pounds to conform with US. tinents and islands, shoal platforms, and fishery statistics). This total includes certain seamounts (Fig. 1 and 2). More­ Lobsters are valued throughout the clawed lobsters, spiny and flat lobsters, over, the world distribution of these world as prime seafood items wherever and squat lobsters or langostinos (Tables animals can also be divided rougWy into they are caught, sold, or consumed. 1 and 2). temperate, subtropical, and tropical Basically, three kinds are marketed for Fisheries for these animals are de­ temperature zones. From such partition­ food, the clawed lobsters (superfamily cidedly concentrated in certain areas of ing, the following facts regarding lob­ Nephropoidea), the squat lobsters the world because of species distribu­ ster fisheries emerge. (family Galatheidae), and the spiny or tion, and this can be recognized by Clawed lobster fisheries (superfamily nonclawed lobsters (superfamily noting regional and species catches. The Nephropoidea) are concentrated in the Palinuroidea) . Food and Agriculture Organization of temperate North Atlantic region, al­ The US. market in clawed lobsters is the United Nations (FAO) has divided though there is minor fishing for them dominated by whole living American the world into 27 major fishing areas for in cooler waters at the edge of the con­ lobsters, Homarus americanus, caught the purpose of reporting fishery statis­ tinental platform in the Gul f of Mexico, off the northeastern United States and tics. Nineteen of these are marine fish­ Caribbean Sea (Roe, 1966), western southeastern Canada, but certain ing areas, but lobster distribution is South Atlantic along the coast of Brazil, smaller species of clawed lobsters from restricted to only 14 of them, i.e.
    [Show full text]
  • Zootaxa,Crustacean Classification
    Zootaxa 1668: 313–325 (2007) ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ ZOOTAXA Copyright © 2007 · Magnolia Press ISSN 1175-5334 (online edition) Crustacean classification: on-going controversies and unresolved problems* GEOFF A. BOXSHALL Department of Zoology, The Natural History Museum, Cromwell Road, London SW7 5BD, United Kingdom E-mail: [email protected] *In: Zhang, Z.-Q. & Shear, W.A. (Eds) (2007) Linnaeus Tercentenary: Progress in Invertebrate Taxonomy. Zootaxa, 1668, 1–766. Table of contents Abstract . 313 Introduction . 313 Treatment of parasitic Crustacea . 315 Affinities of the Remipedia . 316 Validity of the Entomostraca . 318 Exopodites and epipodites . 319 Using of larval characters in estimating phylogenetic relationships . 320 Fossils and the crustacean stem lineage . 321 Acknowledgements . 322 References . 322 Abstract The journey from Linnaeus’s original treatment to modern crustacean systematics is briefly characterised. Progress in our understanding of phylogenetic relationships within the Crustacea is linked to continuing discoveries of new taxa, to advances in theory and to improvements in methodology. Six themes are discussed that serve to illustrate some of the major on-going controversies and unresolved problems in the field as well as to illustrate changes that have taken place since the time of Linnaeus. These themes are: 1. the treatment of parasitic Crustacea, 2. the affinities of the Remipedia, 3. the validity of the Entomostraca, 4. exopodites and epipodites, 5. using larval characters in estimating phylogenetic rela- tionships, and 6. fossils and the crustacean stem-lineage. It is concluded that the development of the stem lineage concept for the Crustacea has been dominated by consideration of taxa known only from larval or immature stages.
    [Show full text]
  • Decapod Crustacean Assemblages Off the West Coast of Central Italy (Western Mediterranean)
    SCIENTIA MARINA 71(1) March 2007, 19-28, Barcelona (Spain) ISSN: 0214-8358 Decapod crustacean assemblages off the West coast of central Italy (western Mediterranean) EMANUELA FANELLI 1, FRANCESCO COLLOCA 2 and GIANDOMENICO ARDIZZONE 2 1 IAMC-CNR Marine Ecology Laboratory, Via G. da Verrazzano 17, 91014 Castellammare del Golfo (Trapani) Italy. E-mail: [email protected] 2 Department of Animal and Human Biology, University of Rome “la Sapienza”, V.le dell’Università 32, 00185 Rome, Italy. SUMMARY: Community structure and faunal composition of decapod crustaceans off the west coast of central Italy (west- ern Mediterranean) were investigated. Samples were collected during five trawl surveys carried out from June 1996 to June 2000 from 16 to 750 m depth. Multivariate analysis revealed the occurrence of five faunistic assemblages: 1) a strictly coastal community over sandy bottoms at depths <35 m; 2) a middle shelf community over sandy-muddy bottoms at depths between 50 and 100 m; 3) a slope edge community up to 200 m depth as a transition assemblage; 4) an upper slope community at depths between 200 and 450 m, and 5) a middle slope community at depths greater than 450 m. The existence of a shelf- slope edge transition is a characteristic of the western and central Mediterranean where a Leptometra phalangium facies is found in many areas at depths between 120 and 180 m. The brachyuran crab Liocarcinus depurator dominates the shallow muddy-sandy bottoms of the shelf, while Parapenaeus longirostris is the most abundant species from the shelf to the upper slope assemblage.
    [Show full text]
  • Studies of a Goneplax Rhomboides Population Off Quarry Bay 55
    Studies of a Goneplax rhomboides population off Quarry Bay R. J. A. ATKINSON Dept of Marine Biology, University of Liverpool, Isle of Man Present address: University Marine Biological Station, Millport, Isle of Cumbrae, Scotland. Introduction This work was conducted during a course in sublittoral marine ecology sponsored by the Lundy Field Society and the Department of Marine Biology, University College of North Wa les, Menai Bridge, Anglesey. The observations reported here result from a team effort in volving Mr. A.R. Andrews, Miss M. Cooper, Mr. J. Creak, Mr. M. Davies, Dr. P.M. Hardy , Mr. J.B . Markham , Mr . C. Roberts, Mr. D. Tierney, Mr. J.G. Wilson and myself. The main objects of the exercise were to familiarise ourselves with various types of burows in the mud and employ a number of techniques to study them. This involved the preparation of polyester resin casts of selected burrows, mapping the distribution of burrows and observing the area by night as well as by day. Although Goneplax rhomboides (L.) was responsible for must of the conspicuous burrows in the area several distinctive burrows occupied by the Red Band Fish (Cepola rnbescens L.) were fou nd .. The squat lobster Munida bamffica (Pennant) was occasionally seen in th e en­ trances of burrows but these burrows appeared to be vacated Goneplax burrows. Methods A 48 metre tape measure was pinned into the mud substratum 17m below C.D. off Quarry Bay. Those burrows that occurred within lm either side of the tape were mapped using pencils on prepared perspex 'slates'. Interrelationships between holes in th e mud we re ascertained by creating a current of water in the burrow and noting those openings through which mud clouds emerged.
    [Show full text]
  • Deep-Water Decapod Crustacea from Eastern Australia: Lobsters of the Families Nephropidae, Palinuridae, Polychelidae and Scyllaridae
    Records of the Australian Museum (1995) Vo!. 47: 231-263. ISSN 0067-1975 Deep-water Decapod Crustacea from Eastern Australia: Lobsters of the Families Nephropidae, Palinuridae, Polychelidae and Scyllaridae D.J.G. GRIFFIN & H.E. STODDART Australian Museum, 6 College Street, Sydney NSW 2000, Australia ABSTRACT. Twenty-three species of deep-water lobsters in the families Nephropidae, Palinuridae, Polychelidae and Scyllaridae are recorded from the continental shelf and slope off eastern Australia. Ten species and two genera have not been previously recorded from Australia. These are Acanthacaris tenuimana, Projasus parkeri, Polycheles baccatus, P. euthrix, P. granulatus, Stereomastis andamanensis, S. helleri, S. sculpta, S. suhmi and Willemoesia bonaspei. The deep­ water lobster fauna of eastern Australia is compared with those of other Indo-Pacific areas. A key is given to all deep-water lobster species recorded from Australian waters. GRIFFIN, D.J.O. & H.E. STODDART, 1995. Deep-water decapod Crustacea from eastern Australia: lobsters of the families Nephropidae, Palinuridae, Polychelidae and Scyllaridae. Records of the Australian Museum 47(3): 231-263. The deep-water lobster fauna of the Australian region fauna of southern Australia is as yet poorly known but first became known from collections made by the British extensive collections have been made by the Museum Challenger Expedition (Bate, 1888), the 1911-14 of Victoria on the continental shelf and slope of south­ Australasian Antarctic Expedition (Bage, 1938), the eastern Australia and Bass Strait. Commonwealth of Australia fishing experiments on the This paper is the third of a series dealing with deep­ Endeavour (1909-1914); various local trawling excursions water decapods taken by the New South Wales Fisheries (e.g., Grant, 1905) and serendipitous catches by Research Vessel Kapala, which has carried out trawling professional fishermen (e.g., McNeill, 1949, 1956).
    [Show full text]
  • Balanus Glandula Class: Multicrustacea, Hexanauplia, Thecostraca, Cirripedia
    Phylum: Arthropoda, Crustacea Balanus glandula Class: Multicrustacea, Hexanauplia, Thecostraca, Cirripedia Order: Thoracica, Sessilia, Balanomorpha Acorn barnacle Family: Balanoidea, Balanidae, Balaninae Description (the plate overlapping plate edges) and radii Size: Up to 3 cm in diameter, but usually (the plate edge marked off from the parietes less than 1.5 cm (Ricketts and Calvin 1971; by a definite change in direction of growth Kozloff 1993). lines) (Fig. 3b) (Newman 2007). The plates Color: Shell usually white, often irregular themselves include the carina, the carinola- and color varies with state of erosion. Cirri teral plates and the compound rostrum (Fig. are black and white (see Plate 11, Kozloff 3). 1993). Opercular Valves: Valves consist of General Morphology: Members of the Cirri- two pairs of movable plates inside the wall, pedia, or barnacles, can be recognized by which close the aperture: the tergum and the their feathery thoracic limbs (called cirri) that scutum (Figs. 3a, 4, 5). are used for feeding. There are six pairs of Scuta: The scuta have pits on cirri in B. glandula (Fig. 1). Sessile barna- either side of a short adductor ridge (Fig. 5), cles are surrounded by a shell that is com- fine growth ridges, and a prominent articular posed of a flat basis attached to the sub- ridge. stratum, a wall formed by several articulated Terga: The terga are the upper, plates (six in Balanus species, Fig. 3) and smaller plate pair and each tergum has a movable opercular valves including terga short spur at its base (Fig. 4), deep crests for and scuta (Newman 2007) (Figs.
    [Show full text]
  • DEEP SEA LEBANON RESULTS of the 2016 EXPEDITION EXPLORING SUBMARINE CANYONS Towards Deep-Sea Conservation in Lebanon Project
    DEEP SEA LEBANON RESULTS OF THE 2016 EXPEDITION EXPLORING SUBMARINE CANYONS Towards Deep-Sea Conservation in Lebanon Project March 2018 DEEP SEA LEBANON RESULTS OF THE 2016 EXPEDITION EXPLORING SUBMARINE CANYONS Towards Deep-Sea Conservation in Lebanon Project Citation: Aguilar, R., García, S., Perry, A.L., Alvarez, H., Blanco, J., Bitar, G. 2018. 2016 Deep-sea Lebanon Expedition: Exploring Submarine Canyons. Oceana, Madrid. 94 p. DOI: 10.31230/osf.io/34cb9 Based on an official request from Lebanon’s Ministry of Environment back in 2013, Oceana has planned and carried out an expedition to survey Lebanese deep-sea canyons and escarpments. Cover: Cerianthus membranaceus © OCEANA All photos are © OCEANA Index 06 Introduction 11 Methods 16 Results 44 Areas 12 Rov surveys 16 Habitat types 44 Tarablus/Batroun 14 Infaunal surveys 16 Coralligenous habitat 44 Jounieh 14 Oceanographic and rhodolith/maërl 45 St. George beds measurements 46 Beirut 19 Sandy bottoms 15 Data analyses 46 Sayniq 15 Collaborations 20 Sandy-muddy bottoms 20 Rocky bottoms 22 Canyon heads 22 Bathyal muds 24 Species 27 Fishes 29 Crustaceans 30 Echinoderms 31 Cnidarians 36 Sponges 38 Molluscs 40 Bryozoans 40 Brachiopods 42 Tunicates 42 Annelids 42 Foraminifera 42 Algae | Deep sea Lebanon OCEANA 47 Human 50 Discussion and 68 Annex 1 85 Annex 2 impacts conclusions 68 Table A1. List of 85 Methodology for 47 Marine litter 51 Main expedition species identified assesing relative 49 Fisheries findings 84 Table A2. List conservation interest of 49 Other observations 52 Key community of threatened types and their species identified survey areas ecological importanc 84 Figure A1.
    [Show full text]
  • Ability to Light-Induced Conductance Change of Arthropod Visual Cell
    Ability to Light-Induced Conductance Change of Arthropod Visual Cell Membrane, Indirectly Depending on Membrane Potential, during Depolarization by External Potassium or Ouabain * H. Stieve, M. Bruns, and H. Gaube Institut für Neurobiologie der Kernforschungsanlage Jülich GmbH (Z. Naturforsch. 32 c, 8 5 5 -8 6 9 [1977]; received July 12, 1977) Astacus and Limuluis Photoreceptors, Light Response, Membrane Conductance, Ouabain, Potassium Depolarization Light responses (ReP) and pre-stimulus membrane potential (PMP) and conductance of photo­ receptors of Astacus leptodactylus and Limulus polyphemus (lateral eye) were recorded and changes were observed when the photoreceptor was depolarized by the action of external ouabain or high potassium concentration application. 1 mM/1 ouabain application causes a transient increase of PMP and ReP in Limulus, followed by a decrease which is faster for the ReP (half time 34 min) than for the PMP (half time 80 min). Irreversible loss of excitability occurs when the PMP is still ca. 40% of the reference value. In both preparations high external potassium concentration leads to total depolarization (beyond zero line to +10— f-20mV) of the PMP and after a time lag of 10 min also to a loss of ex­ citability (intracellular recording). In extracellular recordings (Astacus ) the excitability remains at a low level of 15%. The effects are reversible and are similar whether no or 10% external sodium is present. In all experiments the light-induced changes of membrane conductance are about parallel to those of the light response. The fact that the ability of the photosensoric membrane to undergo light-induced conductance changes is membrane potential-dependent is discussed, leading to the explanation that dipolar membrane constituents such as channel forming molecules (probably not rhodopsin) have to be ordered by the membrane potential to keep the membrane functional for the photosensoric action.
    [Show full text]