DOCSLIB.ORG

Cucumaria Frondosa for Management of The

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Cucumaria Frondosa for Management of The ASSESSMENT OF THE BIOLOGY, ECOLOGY AND GENETIC STRUCTURE OF THE SEA CUCUMBER CUCUMARIA FRONDOSA FOR MANAGEMENT OF THE FISHERY IN THE NEWFOUNDLAND AND LABRADOR REGION By © Justin J. So A thesis submitted to the School of Graduate Studies in partial fulfillment of the requirements for the degree of Master of Science Ocean Sciences Centre and Department of Biology, Memorial University, St. John's (Newfoundland and Labrador) Canada 25 August 2009 ABSTRACT The biological traits of the sea cucumber Cucumaria frondosa relevant from both ecological and resource management perspectives were investigated; including distribution, growth and predation on juveniles and adults, and population genetics. Natural densities were mainly dependent on substrate type and location. Spawning occurred from March to May in response to increasing phytoplankton abundance and larvae settled in ca. 5 weeks. Growth of juveniles and adults was slow (indicating ca. 25 years to reach market size) with seasonal patterns correlated with food supply. Juveniles of S. endeca fed upon post-metamorphic sea cucumbers, whereas adult feeding rates were modulated by temperature and biased towards small and injured sea cucumbers, suggesting that trawling may exacerbate predation pressure. Population genetic parameters are consistent with persistence in refugia through the last glacial maximum and local genetic patchiness is likely due to variations in recruitment. A precautionary management approach is advisable to ensure the sustainability of the fishery. 11 ACKNOWLEDGEMENTS There are so many people I need to thank for my M.Sc. This project was truly a collaboration in every sense of the word and I would not have been able to do this without the help of all the people involved from government, industry and academia. I am grateful to my supervisor Annie Mercier and to Jean-Franc;ois Hamel for their thoughts, support and guidance. Their curiosity and enthusiasm will always have a lasting impact on me and I was lucky to have such great people to work with. Thanks to Sven Uthicke at the Australian Institute of Marine Sciences (AIMS), who with great patience half a world away, guided me through population genetics. I also appreciated the comments and input of my committee members, Ian Fleming and Don Deibel and my examiners Bruce MacDonald and Dawn Marshall. From the Department of Fisheries and Aquaculture (DFA), Lew Barrett provided me with unwavering support and insight into the fishery. His drive and passion to see a sustainable, economically viable sea cucumber fishery were a constant inspiration for this project. Thanks to Don Stansbury and Elaine Hynick from the Department of Fisheries and Oceans (DFO) who provided me with invaluable data on the fishery. Information and data on the habitat utilization study provided by Paul Winger and Chris Keats (Marine Institute) was much appreciated. This project could not have succeeded without help from people all across the North Atlantic. The following personnel from DFO, DF A and the Bedford Institute of Oceanography (BIO) assisted me greatly in sample collection in Canadian waters; Tim Siferd, Martin Curtis, Guy Parsons, Shawn Melindy, Pat Mackey, Tyson Russell Joe Ill Drew, Vonda Wareham, Rabindra Singh, Bill Dennis, Darrell O'Brien, Sherrylynn Rowe, Bill MacEachern, and Juliette Francis. The following processors and local harvesters aided me in sample collection in Canada; Reginald Russell, Wayne Russell, Ed Russell, Baxter Hedderson, Wayne Minor, Danny Loveless, Chester Davis, Brian Sullivan, Stanley Lahey, Jules LeBlanc, Bruce Stewart, L. Arragutainaq, Bert Lambert, Todd Saunders, Derrick Kearly, Harvey Richardson, Elmina Richardson, Roger Foulem, Joey Angnatok, Martin Guay, Boyd Oram, Hollis Fowler and in Iceland; Kari Olafsson. The following colleagues and researchers helped with collections in Canada; Philip Sargent, Bob O'Donnell, Renee Boland, Will Coffey, in the United States; Scott Feindel, James Berke, in Norway; Christoffer Schander, Halldis Ringvold, Trond J0rgensen, and in Russia; Elena Gudimova, Peter Zolotarev. Special thanks to my colleague Zhao Sun for her help and advice over the last two years and to all the students in the Mercier lab; Gina Doyle, Chris Negrijn, Nikita Laite and Meghan Goobie who put up with me and helped me with my sampling and data collection. Sincere thanks as well to Matt Rise and Jules Dore for use of their laboratories and equipment. The following people also graciously assisted me in some way or another throughout my M.Sc.: Lana Combdon, Daryl Jones, Connie Short, Pascal Kriwy, Scott Grant, Nicholas Duprey and the staff and collegues of the Ocean Sciences Centre (OSC) and Australian Institute of Marine Sciences (AIMS). Finally, thanks to my family and friends for their support throughout my graduate studies. IV TABLE OF CONTENTS ABSTRACT .................................. ..................... .................... .................. ........................... ii ACKNOWLEDGEMENTS ............................................................................................... iii TABLE OF CONTENTS ..................................................................................................... v LIST OF TABLES ............................................................................................................ vii LIST OF FIGURES ......................................................................................................... viii LIST OF ABBREVIATIONS AND SYMBOLS .............................................................. xi LIST OF APPENDICES .................................................................................................. xiii CO-AUTHORSHIP STATEMENT................................................................................. xiv CHAPTER 1: INTRODUCTION .................................................................................... 1-1 1.1 Sea cucumber fisheries ............................................................................... 1-2 1.2 Overview of the biology of Cucumaria frondosa ....................................... 1-3 1.3 Emerging Cucumariafrondosa fishery ...................................................... 1-8 1.4 Background information for the present study ......................................... 1-10 1.5 Objectives of research ...... ............... .......................................................... 1-13 1.6 References ................................................................................................. 1-15 1. 7 Figures ................................................................................................... ... 1-25 CHAPTER 2: ABUNDANCE, GROWTH AND PREDATION PRESSURE IN JUVENILES AND ADULTS OF CUCUMARIA FRONDOSA (ECHINODERMATA: HOLOTHUROIDEA): KEY FACTORS IN FISHERY MANAGEMENT .................... 2-1 2.1 Abstract ........................... ......... .. .... ......... ........... ..... .................................... 2-2 2.2 Introduction ................................................................................................. 2-3 2.3 Materials and Methods ............................................................................... 2-9 2.4 Results ........................................................................................ ............... 2-19 2.5 Discussion ............................................................ .......................... .. ......... 2-28 2.6 Acknowledgements .......................... ........................ ................................. 2-47 2.7 References ................................................................ ....................... ..... .. ... 2-49 2.8 Tables ........................................ .................................... ............................ 2-65 2.9 Figures ....... .. .................. ........................................................ .. ................. 2-70 CHAPTER 3: TRANS-ATLANTIC GLACIAL PERSISTENCE: RECONCILING PATTERNS OF GENETIC DIVERSITY AND LIFE HISTORY TRAITS IN CUCUMARIA FRONDOSA (ECHINODERMATA: HOLOTHUROIDEA) .................. 3-1 v 3.1 Abstract. ...................................................................................................... 3-2 3.2 Introduction ................................................................................................. 3-3 3.3 Materials and Methods ...... ......................................... ................................ 3-7 3.4 Results ....................................................................................................... 3-12 3.5 Discussion ....................... .......................................................................... 3-14 3.6 Acknowledgements ............................................................... ........... ......... 3-24 3.7 References ........................................................................................ ......... 3-26 3.8 Tables ........................................................................................................ 3-39 3.9 Figures ............................. .......................... .......................... ............. ........ 3-44 CHAPTER 4: SUMMARY ....................................................................... ....................... 4-1 4.1 Biology and ecology of Cucumariafrondosa ............................................ 4-2 4.2 Implications for the fishery ......................................................................... 4-6 4.3 Future research ...........................................................................................
Load more

Recommended publications
  • Psolus Phantapus
    Maine 2015 Wildlife Action Plan Revision Report Date: January 13, 2016 Psolus phantapus (Psolus) Priority 2 Species of Greatest Conservation Need (SGCN) Class: Holothuroidea (Sea Cucumbers) Order: Dendrochirotida (Sea Cucumbers) Family: Psolidae (Sea Cucumbers) General comments: none No Species Conservation Range Maps Available for Psolus SGCN Priority Ranking - Designation Criteria: Risk of Extirpation: NA State Special Concern or NMFS Species of Concern: NA Recent Significant Declines: Psolus is currently undergoing steep population declines, which has already led to, or if unchecked is likely to lead to, local extinction and/or range contraction. Notes: recent decline - Trott, in review; last record in Cobscook Bay 1973; subjected to targeted collections for public aquaria display; climate change - Arctic Province Species; understudied as dredge by-catch, professional judgement Regional Endemic: NA High Regional Conservation Priority: NA High Climate Change Vulnerability: Psolus phantapus is highly vulnerable to climate change. Understudied rare taxa: Recently documented or poorly surveyed rare species for which risk of extirpation is potentially high (e.g. few known occurrences) but insufficient data exist to conclusively assess distribution and status. *criteria only qualifies for Priority 3 level SGCN* Notes: recent decline - Trott, in review; last record in Cobscook Bay 1973; subjected to targeted collections for public aquaria display; climate change - Arctic Province Species; understudied as dredge by-catch, professional judgement
    [Show full text]
  • SPC Beche-De-Mer Information Bulletin Contains Eight Articles Commercial Species in Tonga and Communications from Several Countries
    Secretariat of the Pacific Community ISSN 1025-4943 Issue 33 – May 2013 BECHE-DE-MER information bulletin Inside this issue Editorial Change in weight of sea cucumbers during processing: Ten common This issue of SPC Beche-de-mer Information Bulletin contains eight articles commercial species in tonga and communications from several countries. It also includes abstracts about sea P. Ngaluafe and J. Lee p. 3 cucumbers that were presented at the 14th International Echinoderm Conference First insight into Colombian Caribbean that was held in Brussels in August. sea cucumbers and sea cucumber fishery The first article (p. 3) comes from Tonga. Poasi Ngaluafe and Jessica Lee analyse A. Rodriguez Forero et al. p. 9 the change in weight of ten common commercial sea cucumbers. They discuss the possible reasons for the discrepancy they observe between their results and Strategies for improving survivorship of hatchery-reared juvenile Holothuria previous ones, and the implications for fisheries management in Tonga. scabra in community-managed sea cucumber farms We are also very pleased to present some insights about sea cucumbers and sea A. Rougier et al. p. 14 cucumber fisheries in the Colombian Caribbean. The article is from the team of Holothurian abundance, richness and Adriana Rodríguez Forero (p. 9). They report on species that could be new for the population densities, comparing sites Caribbean and conclude with stressing the importance of initiating a management with different degrees of exploitation in plan for the Colombian fishery resource. the shallow lagoons of Mauritius K. Lampe p. 23 Some news also from Madagascar, where Antoine Rougier et al.
    [Show full text]
  • An Illustrated Key to the Sea Cucumbers of the South Atlantic Bight
    Prepared by the Southeastern Regional Taxonomic Center AAnn iilllluussttrraatteedd kkeeyy ttoo tthhee sseeaa ccuuccuummbbeerrss ooff tthhee SSoouutthh AAttllaannttiicc BBiigghhtt David L. Pawson and Doris J. Pawson Smithsonian Institution, PO Box 37012, MRC 163, Washington, DC 20013-7012 1 Table of Contents Introduction ..........................................................................................................................3 General Morphology (internal) ................................................................................3 General morphology (external) ................................................................................4 Preparation of ossicles .............................................................................................4 Checklist of South Atlantic Bight holothuroideans ............................................................5 Key to Orders of Holothuroidea known from the South Atlantic Bight ..............................6 Key to members of the Order Dendrochirotida known from the South Atlantic Bight .......9 Key to species of the Aspidochirotida known from the South Atlantic Bight...................28 Key to species of the Molpadiida known from the South Atlantic Bight ..........................34 Key to species of the Apodiida known from the South Atlantic Bight .............................35 This document was prepared by Rachael A. King and is only part of a more extensive study that is expected to be published in 2008. The research was conducted in part using funding
    [Show full text]
  • Distribution, Abundance, and Diversity of Epifaunal Benthic Organisms in Alitak and Ugak Bays, Kodiak Island, Alaska
    DISTRIBUTION, ABUNDANCE, AND DIVERSITY OF EPIFAUNAL BENTHIC ORGANISMS IN ALITAK AND UGAK BAYS, KODIAK ISLAND, ALASKA by Howard M. Feder and Stephen C. Jewett Institute of Marine Science University of Alaska Fairbanks, Alaska 99701 Final Report Outer Continental Shelf Environmental Assessment Program Research Unit 517 October 1977 279 We thank the following for assistance during this study: the crew of the MV Big Valley; Pete Jackson and James Blackburn of the Alaska Department of Fish and Game, Kodiak, for their assistance in a cooperative benthic trawl study; and University of Alaska Institute of Marine Science personnel Rosemary Hobson for assistance in data processing, Max Hoberg for shipboard assistance, and Nora Foster for taxonomic assistance. This study was funded by the Bureau of Land Management, Department of the Interior, through an interagency agreement with the National Oceanic and Atmospheric Administration, Department of Commerce, as part of the Alaska Outer Continental Shelf Environment Assessment Program (OCSEAP). SUMMARY OF OBJECTIVES, CONCLUSIONS, AND IMPLICATIONS WITH RESPECT TO OCS OIL AND GAS DEVELOPMENT Little is known about the biology of the invertebrate components of the shallow, nearshore benthos of the bays of Kodiak Island, and yet these components may be the ones most significantly affected by the impact of oil derived from offshore petroleum operations. Baseline information on species composition is essential before industrial activities take place in waters adjacent to Kodiak Island. It was the intent of this investigation to collect information on the composition, distribution, and biology of the epifaunal invertebrate components of two bays of Kodiak Island. The specific objectives of this study were: 1) A qualitative inventory of dominant benthic invertebrate epifaunal species within two study sites (Alitak and Ugak bays).
    [Show full text]
  • High-Value Components and Bioactives from Sea Cucumbers for Functional Foods—A Review
    Mar. Drugs 2011, 9, 1761-1805; doi:10.3390/md9101761 OPEN ACCESS Marine Drugs ISSN 1660-3397 www.mdpi.com/journal/marinedrugs Review High-Value Components and Bioactives from Sea Cucumbers for Functional Foods—A Review Sara Bordbar 1, Farooq Anwar 1,2 and Nazamid Saari 1,* 1 Faculty of Food Science and Technology, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia; E-Mails: [email protected] (S.B.); [email protected] (F.A.) 2 Department of Chemistry and Biochemistry, University of Agriculture, Faisalabad 38040, Pakistan * Author to whom correspondence should be addressed; E-Mail: [email protected]; Tel.: +60-389-468-385; Fax: +60-389-423-552. Received: 3 August 2011; in revised form: 30 August 2011 / Accepted: 8 September 2011 / Published: 10 October 2011 Abstract: Sea cucumbers, belonging to the class Holothuroidea, are marine invertebrates, habitually found in the benthic areas and deep seas across the world. They have high commercial value coupled with increasing global production and trade. Sea cucumbers, informally named as bêche-de-mer, or gamat, have long been used for food and folk medicine in the communities of Asia and Middle East. Nutritionally, sea cucumbers have an impressive profile of valuable nutrients such as Vitamin A, Vitamin B1 (thiamine), Vitamin B2 (riboflavin), Vitamin B3 (niacin), and minerals, especially calcium, magnesium, iron and zinc. A number of unique biological and pharmacological activities including anti-angiogenic, anticancer, anticoagulant, anti-hypertension, anti-inflammatory, antimicrobial, antioxidant, antithrombotic, antitumor and wound healing have been ascribed to various species of sea cucumbers. Therapeutic properties and medicinal benefits of sea cucumbers can be linked to the presence of a wide array of bioactives especially triterpene glycosides (saponins), chondroitin sulfates, glycosaminoglycan (GAGs), sulfated polysaccharides, sterols (glycosides and sulfates), phenolics, cerberosides, lectins, peptides, glycoprotein, glycosphingolipids and essential fatty acids.
    [Show full text]
  • 1 Conference of the Parties to The
    Conference of the Parties to the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES); Seventeenth Regular Meeting: Taxa Being Considered for Amendments to the CITES Appendices The United States, as a Party to the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES), may propose amendments to the CITES Appendices for consideration at meetings of the Conference of the Parties. The seventeenth regular meeting of the Conference of the Parties to CITES (CoP17) is scheduled to be held in South Africa, September 24 to October 5, 2016. With this notice, we describe proposed amendments to the CITES Appendices (species proposals) that the United States might submit for consideration at CoP17 and invite your comments and information on these proposals. Please note that we published an abbreviated version of this notice in the Federal Register on August 26, 2015, in which we simply listed each species proposal that the United States is considering for CoP17, but we did not describe each proposal in detail or explain the rationale for the tentative U.S. position on each species. CITES is an international treaty designed to control and regulate international trade in certain animal and plant species that are affected by trade and are now, or potentially may become, threatened with extinction. These species are listed in the Appendices to CITES, which are available on the CITES Secretariat’s website at http://www.cites.org/sites/default/files/eng/app/2015/E-Appendices-2015-02-05.pdf. Currently, 181 Parties, including the United States, have joined CITES.
    [Show full text]
  • Feeding, Tentacle and Gut Morphology in Five Species of Southern African Intertidal Holothuroids (Echinodermata)
    70-79 S. AfT. 1 2001. 1996, 31 (2) Feeding, tentacle and gut morphology in five species of southern African intertidal holothuroids (Echinodermata) Greg G. Foster' and Alan N. Hodgson Department of Zoology and Entomology, Rhodes University, Grahamstown, 6140 South Africa Tel.(461 )318526, Fax(461 )24377, e-mail: [email protected] Received 10 November 1995; accepted 8 February /996 Light, scanning and transmission electron microscopy were used to compare the structure of the tentacles and digestive tracts of four species of intertidal dendrochirote (Roweia stephensoni, Pseudocnella sykion, Asfia spy­ ridophora, R. frauenfeldi frauenfeldl), and one species of aspidochirote holothuroid (Neostichopus grammatus). In addition, gut lengths and contents of the five species were compared. Gut contents were sieved to determine the size of the particulate matter ingested. Roweia stephensoni, P. sykion and A. spyridophora were found to be suspension feeders using dendritic tentacles to capture and ingest food particles mostly <53 ~m in size. Roweia f. frauenfeldi was also a suspension feeder but, had atypical (reduced) dendritic tentacles which captured food particles between 250 ~m-1.18 mm in size. Neostichopus grammatus was a deposit feeder, ingesting sedi­ ments mostly between 106-500 ~m using tentacles which are peltate with ramified processes. The gut lengths of the four suspension-feeding species were found to be Significantly (p <0.001) longer than that of the deposit feeder. The digestive tract of all species was composed of four tissue layers, with the digestive epithelial layer of the anterior and posterior ends of the intestine of suspension feeders being significantly thicker (52 to 57 ~m) than that of the deposit feeder (about 19 to 29 ~m).
    [Show full text]
  • Holothuroidea: Dendrochirotida: Psolidae) from the East Sea of Korea
    Anim. Syst. Evol. Divers. Vol. 33, No. 3: 195-199, July 2017 https://doi.org/10.5635/ASED.2017.33.3.020 Short communication A Newly Recorded Sea Cucumber of the Genus Psolus (Holothuroidea: Dendrochirotida: Psolidae) from the East Sea of Korea Taekjun Lee1,2, Sook Shin2,3,* 1College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea 2Marine Biological Resource Institute, Sahmyook University, Seoul 01795, Korea 3Department of Life Science, Sahmyook University, Seoul 01795, Korea ABSTRACT A sea cucumber was collected from Gonghyeonjin in the East Sea of Korea at a depth of 50 m on 22 June 2011 and was identified as Psolus phantapus (Strussenfelt, 1765). This species belongs to the family Psolidae of the order Dendrochirotida based on morphological characteristics and mitochondrial cytochrome c oxidase subunit I sequence analysis. Psolus phantapus, which widely distributes in the Arctic and North Atlantic Oceans, is newly recorded in the Korean fauna. Two Psolus species including the previously reported P. squamatus are recorded in the East Sea of Korea. Keywords: Psolus phantapus, morphological characteristics, SEM, mitochondrial COI sequence, molecular identification INTRODUCTION subunit I (mt-COI) gene is a powerful tool for identification and discovery of species (Hebert et al., 2003; Ratnasingham Sea cucumbers of the family Psolidae have distinctive mor- and Hebert, 2007), and the region of mt-COI sequence is phological characteristics compared with other families of validated as an effective tool for species discrimination in the order Dendrochirotida. The dorsal surface has a contin- echinoderms (Ward et al., 2008; Hoareau and Boissin, 2010; uous covering of imbricated calcified scales, and the ventral Layton et al., 2016).
    [Show full text]
  • The Pelagic Propagule's Toolkit
    The pelagic propagule’s toolkit: An exploration of the morphology, swimming capacity and behaviour of marine invertebrate propagules by © Emaline M. Montgomery A Dissertation submitted to the School of Graduate Studies in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Marine Biology, Department of Ocean Sciences, Faculty of Science, Memorial University of Newfoundland June 2017 St. John’s, Newfoundland and Labrador Abstract The pelagic propagules of benthic marine animals often exhibit behavioural responses to biotic and abiotic cues. These behaviours have implications for understanding the ecological trade-offs among complex developmental strategies in the marine environment, and have practical implications for population management and aquaculture. But the lack of life stage-specific data leaves critical questions unanswered, including: (1) Why are pelagic propagules so diverse in size, colour, and development mode; and (2) do certain combinations of traits yield propagules that are better adapted to survive in the plankton and under certain environments? My PhD research explores these questions by examining the variation in echinoderm propagule morphology, locomotion and behaviour during ontogeny, and in response to abiotic cues. Firstly, I examined how egg colour patterns of lecithotrophic echinoderms correlated with behavioural, morphological, geographic and phylogenetic variables. Overall, I found that eggs that developed externally (pelagic and externally-brooded eggs) had bright colours, compared
    [Show full text]
  • From the JR275 Expedition to the Eastern Weddell Sea, Antarctica
    ZooKeys 1054: 155–172 (2021) A peer-reviewed open-access journal doi: 10.3897/zookeys.1054.59584 DATA PAPER https://zookeys.pensoft.net Launched to accelerate biodiversity research Sea cucumbers (Echinodermata, Holothuroidea) from the JR275 expedition to the eastern Weddell Sea, Antarctica Melanie Mackenzie1, P. Mark O’Loughlin1, Huw Griffiths2, Anton Van de Putte3 1 Sciences Department – Marine Invertebrates, Museums Victoria, GPO Box 666, Melbourne, Victoria 3001, Australia 2 British Antarctic Survey (BAS), High Cross Madingley Road, CB3 0ET, Cambridge, UK 3 Royal Belgian Institute of Natural Sciences (RBINS), Rue Vautier 29, Brussels, Belgium Corresponding author: Melanie Mackenzie ([email protected]) Academic editor: Yves Samyn | Received 12 October 2020 | Accepted 11 May 2021 | Published 4 August 2021 http://zoobank.org/43707F5D-D678-4B8E-83F1-3089091B19F8 Citation: Mackenzie M, O’Loughlin PM, Griffiths H, Van de Putte A (2021) Sea cucumbers (Echinodermata, Holothuroidea) from the JR275 expedition to the eastern Weddell Sea, Antarctica. ZooKeys 1054: 155–172. https:// doi.org/10.3897/zookeys.1054.59584 Abstract Thirty-seven holothuroid species, including six potentially new, are reported from the eastern Weddell Sea in Antarctica. Information regarding sea cucumbers in this dataset is based on Agassiz Trawl (AGT) samples collected during the British Antarctic Survey cruise JR275 on the RRS James Clark Ross in the austral summer of 2012. Species presence by site and an appendix of holothuroid identifications with registrations are included as supplementary material. Species occurrence in the Weddell Sea is updated to include new holothuroids from this expedition. Keywords Antarctic, benthic, biodiversity, dataset, holothuroid, Southern Ocean Introduction The British Antarctic Survey (BAS) JR275 research cruise on the RRS James Clark Ross visited the Weddell Sea from February to March in 2012 as part of a core EvolHist (Evolutionary History of the Polar Regions) project.
    [Show full text]
  • Catalogue Des Holothuries De L'extrême-Orient Russe
    24 La bêche-de-mer, Bulletin d'information de la CPS n° 36 - Octobre 2016 Catalogue des holothuries de l’Extrême-Orient russe Vadim G. Stepanov1,2 et Elena G. Panina1,3 Introduction Au total, 638 références bibliographiques ont été consultées pour dresser un état des lieux de la répartition des holothuries dans les mers de l’Extrême-Orient russe. À partir de la littérature, un catalogue de 92 espèces a été établi. Les informations suivantes ont été compilées pour chaque espèce enregistrée dans le catalogue : 1) sa distribution géographique dans les mers de l’Extrême-Orient russe ; et 2) sa répartition en profondeur dans l’ensemble de son aire de répartition connue. Catalogue des 92 espèces observées en Extrême-Orient russe Sous-classe Synaptacea Cuénot 1891 [nom. transl. pro subclassis Al. Smirnov 2007 (ex Synaptida Cuénot 1891, pro classis)] Ordre : Synaptida Cuénot 1891 Sous-ordre : Myriotrochina Al. Smirnov 1998 Famille : Myriotrochidae Théel 1877 Genre : Myriotrochus Steenstrup 1851 1. Myriotrochus longissimus Belyaev 1970 2. Myriotrochus mitsukurii Ohshima 1915 3. Myriotrochus rinkii Steenstrup 1851 Genre : Prototrochus Belyaev et Mironov 1982 4. Prototrochus kurilensis (Belyaev 1970) 5. Prototrochus minutus (Östergren 1905) 6. Prototrochus zenkevitchi (Belyaev 1970) Genre : Siniotrochus Pawson 1971 7. Siniotrochus spiculifer Belyaev et Mironov 1981 Sous-ordre : Synaptina Al. Smirnov 1998 Famille : Chiridotidae Östergren 1898a Sous-famille : Chiridotinae Östergren 1898a, sensu Al. Smirnov 1998 Genre : Chiridota Eschscholtz 1829 8. Chiridota albatrossii Edwards 1907 9. Chiridota discolor Eschscholtz 1829 10. Chiridota ochotensis Saveljeva 1941 11. Chiridota orientalis Al. Smirnov 1981 12. Chiridota pellucida Vahl 1806 13. Chiridota tauiensis Saveljeva 1941 Sous-famille : Taeniogyrinae Al.
    [Show full text]
  • A New Genus and a New Species in the Sea Cucumber Subfamily Colochirinae (Echinodermata: Holothuroidea: Dendrochirotida: Cucumariidae) in the Mediterranean Sea
    Zootaxa 4189 (1): 156–164 ISSN 1175-5326 (print edition) http://www.mapress.com/j/zt/ Article ZOOTAXA Copyright © 2016 Magnolia Press ISSN 1175-5334 (online edition) http://doi.org/10.11646/zootaxa.4189.1.8 http://zoobank.org/urn:lsid:zoobank.org:pub:61692FA8-DF4B-4098-8F4D-3B332677D5CE A new genus and a new species in the sea cucumber subfamily Colochirinae (Echinodermata: Holothuroidea: Dendrochirotida: Cucumariidae) in the Mediterranean Sea SIFISO MJOBO & AHMED S. THANDAR1 School of Life Sciences, University of KwaZulu-Natal, P/Bag X54001, Durban 4000, South Africa. E-mail: [email protected] , [email protected] 1Corresponding author Abstract A new genus Hemiocnus is here erected to accommodate the Mediterranean dendrochirotid sea cucumber Cladodactyla syracusana Grube, currently classified, with some doubt, in the cucumariid genus Pseudocnella. At the same time a new cucumariid species, Hemiocnus rubrobrunneus, is described from some Tunisian material, misidentified as Pseudocnella syracusana (Grube), received from the United States National Museum. The new genus appears most closely related to Pseudocnella than to any other genus within the Colochirinae. Although its body wall ossicles resemble those of Pseudoc- nella spp. it differs in that the two ventral-most tentacles are reduced and in the presence of rosettes in the tentacles. P. syracusana also cannot be classified in Ocnus because of the presence of multi-layered, fir-cone shaped plates in the body wall, often with one end denticulate; such ossicles are lacking in the type species of the latter genus. The new species, Hemiocnus rubrobrunneus, on the other hand, shows some resemblance to H. syracusanus in its characteristic buttons and incomplete baskets, differing in its softer body wall, lack of fir-cone-shaped plates and in the presence of rosettes and com- plete baskets in the body wall.
    [Show full text]