DOCSLIB.ORG

SPC Beche-De-Mer Information Bulletin #39 – March 2019

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
SPC Beche-De-Mer Information Bulletin #39 – March 2019 ISSN 1025-4943 Issue 39 – March 2019 BECHE-DE-MER information bulletin v Inside this issue Editorial Towards producing a standard grade identification guide for bêche-de-mer in This issue of the Beche-de-mer Information Bulletin is well supplied with Solomon Islands 15 articles that address various aspects of the biology, fisheries and S. Lee et al. p. 3 aquaculture of sea cucumbers from three major oceans. An assessment of commercial sea cu- cumber populations in French Polynesia Lee and colleagues propose a procedure for writing guidelines for just after the 2012 moratorium the standard identification of beche-de-mer in Solomon Islands. S. Andréfouët et al. p. 8 Andréfouët and colleagues assess commercial sea cucumber Size at sexual maturity of the flower populations in French Polynesia and discuss several recommendations teatfish Holothuria (Microthele) sp. in the specific to the different archipelagos and islands, in the view of new Seychelles management decisions. Cahuzac and others studied the reproductive S. Cahuzac et al. p. 19 biology of Holothuria species on the Mahé and Amirantes plateaux Contribution to the knowledge of holo- in the Seychelles during the 2018 northwest monsoon season. thurian biodiversity at Reunion Island: Two previously unrecorded dendrochi- Bourjon and Quod provide a new contribution to the knowledge of rotid sea cucumbers species (Echinoder- holothurian biodiversity on La Réunion, with observations on two mata: Holothuroidea). species that are previously undescribed. Eeckhaut and colleagues P. Bourjon and J.-P. Quod p. 27 show that skin ulcerations of sea cucumbers in Madagascar are one Skin ulcerations in Holothuria scabra can symptom of different diseases induced by various abiotic or biotic be induced by various types of food agents. This particular article describes how sediments ingested by I. Eeckhaut et al. p. 31 Holothuria scabra can induce skin ulcerations when they are enriched Note on the pea crab Holotheres semperi with different types of organic matter. (Bürger, 1895) parasitising the sea cu- cumber Holothuria scabra in Rempang, Hamel and others document the extension of the distribution range Indonesia of the pea crab Holotheres semperi associated with the sea cucumber J.-F. Hamel et al. p. 36 Holothuria scabra off the island of Rempang in Indonesia. Ruffez describes a mission in Viet Nam to investigate the safety of fishers Are Vietnamese fisher-divers aware of the need to preserve their health and who dive for sea cucumbers. Calderon-Aguilera shows that the maritime environment? mean density of sea cucumbers has decreased more than five times J. Ruffez and AFEPS p. 39 in the Gulf of California, Mexico, from 2007 to 2016, and suggests that this reduction is largely due to illegal fishing. Four articles relate to research conducted on Mediterranean sea Editor cucumbers. Slimane-Tamacha and colleagues studied the reproductive Igor Eeckhaut biology of the aspidochirotid sea cucumber Holothuria poli at Kristel Marine Biology and bioimitation 6, Av. Champ de Mars Bay in Algeria. Sellem and others determined which species of sea University of Mons cucumbers were living in two lagoon ecosystems on Tunisia’s coastline. 7000 Mons Belgium Email: [email protected] Recommendations and management proposals are suggested towards Production this eventual fishery. Domínguez-Godino summarises the main Pacific Community results of his PhD on the aquaculture of H. arguinensis. His PhD was BP D5, 98848 Noumea Cedex New Caledonia supervised by Mercedes González-Wangüemert. Mecheta and Mezali Fax: +687 263818 analysed the biometry, and the amount of water and the effects of Email: [email protected] www.spc.int Produced with financial assistance from the government of Australia, the European Union, France and the New Zealand Aid Programme. 2 SPC Beche-de-mer Information Bulletin #39 – March 2019 Illegal fishing of the sea cucumber Isostichopus pepsin digestion on the dry body in three economically fuscus is rampant in the Gulf of California, Mexico important sea cucumber species that are common in the L.E. Calderon-Aguilera p. 42 waters of Algeria in order to highlight their economic and Reproductive biology of Holothuria (Roweothuria) nutritional values. Neghli and Mezali provide an overview poli (Holothuroidea: Echinodermata) from Oran of the sea cucumber fishery in Algeria and propose Bay, Algeria recommendations before opening that fishery. F. Slimane-Tamacha et al. p. 47 Sea cucumber species from Mediterranean Finally, the article by Simone and colleagues explains a lagoon environments (Tunisia western and proposal to list some teatfishes on Appendix II of the Con- eastern Mediterranean) vention of the International Trade in Endangered Species F. Sellem et al. p. 54 (CITES). Holothuria arguinensis: A new sea cucumber species for aquaculture Also included are several communications: two about J.A. Domínguez-Godino and spawning observations in Australia, and others on work- M. González-Wangüemert p. 60 shops and conferences that were held in 2018 and those A biometric study to determine the economic and that will take place in 2019. Congratulations are expressed nutritional value of sea cucumbers (Holothuroidea: to Jorge Antonio Dominguez-Godino, Nor-Eddine Bel- Echinodermata) collected from Algeria’s shallow water areas bachir and Woo Sau Pinn who presented their PhD work A. Mecheta and K. Mezali p. 65 on sea cucumbers. Algeria’s sea cucumber fishery: Challenges for Igor Eeckhaut a new fishery L. Neghli and K. Mezali p. 71 P.S: In line with a worldwide trend to limit the impact of Towards a CITES listing of teatfish producing printed publications on the environment, M. Di Simone et al. p. 76 SPC has decided to stop the production and distribu- COMMUNICATIONS tion of printed copies of this and other information bulletins. The BDM bulletin is now only produced in Spawning observations p. 79 digital format but remains accessible from SPC’s web- Conferences p. 83 site at: Publications p. 89 http://www.spc.int/coastfish/en/publications/bulle- PhD Theses p. 90 tins/beche-de-mer.html Sea cucumbers in the news p. 92 © Copyright Pacific Community (SPC), 2019 All rights for commercial / for profit reproduction or translation, in any form, reserved. SPC authorises the partial reproduction or translation of this newsletter for scientific, educational or research purposes, provided that SPC and the source document are properly acknowledged. Permission to reproduce the document and/or translate in whole, in any form, whether for commercial / for profit or non-profit purposes, must be requested in writing. Original SPC artwork may not be altered or separately published without permission. The views expressed in this Bulletin are those of the authors and are not necessarily shared by the Pacific Community. Original text: English Pacific Community, Fisheries Information Section, BP D5, 98848 Noumea Cedex, New Caledonia Telephone: +687 262000; Fax: +687 263818; [email protected]; http://www.spc.int/coastfish SPC Beche-de-mer Information Bulletin #39 – March 2019 3 Towards producing a standard grade identification guide for beche-de-mer in Solomon Islands Steven Lee,1 Frederic Iro,2 Hugh Govan3 and Ian Bertram4 In early 2018, beche-de-mer (BDM) from six • 201 specimens of BDM were photographed, rep- exporting companies based in Honiara, Solomon resenting 22 of the 32 species of sea cucumber Islands were photographed by staff of the Min- present in Solomon Islands (Pakoa et al. 2014); istry of Fisheries and Marine Resources (MFMR) 14 of the 22 species that were photographed had in order to compile a photographic identification fewer than 3 specimens of grades A and B (high- guide. The guide aims to help fisheries officers and lighted in yellow, Table 1). customs inspectors identify various BDM grades set by the market. Once BDM species and grade • Of the 201 specimens photographed, 8 could can be readily identified, then standard minimum not be identified to species level, and 11 were buying prices can be set per species and grade for misidentified. buyers and/or exporters. • 11 specimens were misidentified as: Bohadschia Establishing a standard grade guide is required in vitiensis, Holothuria atra, H. scabra or H. edulis. order to set and enforce standard minimum prices. These were re-identified as follows: There are indications that the market can sustain moderate increases in buying prices but that this o 3 specimens of B. vitiensis (medium value will not result in benefits to fishers unless emphasis species) were in fact H. fuscogilva (high value), is placed on ensuring that fishers are provided with Actinopyga lecanora (high value) and Pearsono- the information on minimum prices and empow- thuria graeffei (low value); ered or supported in ensuring that buyers adhere o 5 specimens of H. atra (low value) were in to the prices. fact P. graeffei (low value), H. fuscogilva (high value), H. fuscopunctata (2) (medium value), In countries where levies and taxes are imposed and 1 specimen could not be re-identified; on exporters, a standard grade guide will be vital to ensure that the value of products are not under- o 2 specimens of H. scabra (high value) were in declared, thereby reducing revenue to govern- fact A. miliaris (high value), and 1 specimen ment. However, these efforts require each country could not be re-identified; to carry out their own assessment of fishing and trader expenses to appropriately set minimum o 1 specimen of H. edulis (low value) was in fact prices (James, in prep.). H. fuscopunctata (high value). For this research, MFMR staff relied on traders and • 6 out of 11 misidentified specimens were origi- companies to provide specimens and identify the nally identified as lower value species, 2 were species and grade of the specimens being photo- identified as species of similar value, 1 was iden- graphed. Photography followed a guide and stand- tified as a higher value species, and the remain- ard template previously provided by the Pacific ing 2 could not be re-identified.
Load more

Recommended publications
  • Fucosylated Chondroitin Sulfates from the Sea Cucumbers Paracaudina Chilensis and Holothuria Hilla: Structures and Anticoagulant Activity
    marine drugs Article Fucosylated Chondroitin Sulfates from the Sea Cucumbers Paracaudina chilensis and Holothuria hilla: Structures and Anticoagulant Activity Nadezhda E. Ustyuzhanina 1,*, Maria I. Bilan 1, Andrey S. Dmitrenok 1 , Alexandra S. Silchenko 2, Boris B. Grebnev 2, Valentin A. Stonik 2, Nikolay E. Nifantiev 1 and Anatolii I. Usov 1,* 1 N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, 119991 Moscow, Russia; [email protected] (M.I.B.); [email protected] (A.S.D.); [email protected] (N.E.N.) 2 G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, Prospect 100 let Vladivostoku 159, 690022 Vladivostok, Russia; [email protected] (A.S.S.); [email protected] (B.B.G.); [email protected] (V.A.S.) * Correspondence: [email protected] (N.E.U.); [email protected] (A.I.U.); Tel.: +7-495-135-8784 (N.E.U.) Received: 29 September 2020; Accepted: 26 October 2020; Published: 28 October 2020 Abstract: Fucosylated chondroitin sulfates (FCSs) PC and HH were isolated from the sea cucumbers Paracaudina chilensis and Holothuria hilla, respectively. The purification of the polysaccharides was carried out by anion-exchange chromatography on a DEAE-Sephacel column. The structural characterization of the polysaccharides was performed in terms of monosaccharide and sulfate content, as well as using a series of nondestructive NMR spectroscopic methods. Both polysaccharides were shown to contain a chondroitin core [ 3)-β-d-GalNAc (N-acethyl galactosamine)-(1 4)-β-d-GlcA ! ! (glucuronic acid)-(1 ]n, bearing sulfated fucosyl branches at O-3 of every GlcA residue in the ! chain.
    [Show full text]
  • FISH LIST WISH LIST: a Case for Updating the Canadian Government’S Guidance for Common Names on Seafood
    FISH LIST WISH LIST: A case for updating the Canadian government’s guidance for common names on seafood Authors: Christina Callegari, Scott Wallace, Sarah Foster and Liane Arness ISBN: 978-1-988424-60-6 © SeaChoice November 2020 TABLE OF CONTENTS GLOSSARY . 3 EXECUTIVE SUMMARY . 4 Findings . 5 Recommendations . 6 INTRODUCTION . 7 APPROACH . 8 Identification of Canadian-caught species . 9 Data processing . 9 REPORT STRUCTURE . 10 SECTION A: COMMON AND OVERLAPPING NAMES . 10 Introduction . 10 Methodology . 10 Results . 11 Snapper/rockfish/Pacific snapper/rosefish/redfish . 12 Sole/flounder . 14 Shrimp/prawn . 15 Shark/dogfish . 15 Why it matters . 15 Recommendations . 16 SECTION B: CANADIAN-CAUGHT SPECIES OF HIGHEST CONCERN . 17 Introduction . 17 Methodology . 18 Results . 20 Commonly mislabelled species . 20 Species with sustainability concerns . 21 Species linked to human health concerns . 23 Species listed under the U .S . Seafood Import Monitoring Program . 25 Combined impact assessment . 26 Why it matters . 28 Recommendations . 28 SECTION C: MISSING SPECIES, MISSING ENGLISH AND FRENCH COMMON NAMES AND GENUS-LEVEL ENTRIES . 31 Introduction . 31 Missing species and outdated scientific names . 31 Scientific names without English or French CFIA common names . 32 Genus-level entries . 33 Why it matters . 34 Recommendations . 34 CONCLUSION . 35 REFERENCES . 36 APPENDIX . 39 Appendix A . 39 Appendix B . 39 FISH LIST WISH LIST: A case for updating the Canadian government’s guidance for common names on seafood 2 GLOSSARY The terms below are defined to aid in comprehension of this report. Common name — Although species are given a standard Scientific name — The taxonomic (Latin) name for a species. common name that is readily used by the scientific In nomenclature, every scientific name consists of two parts, community, industry has adopted other widely used names the genus and the specific epithet, which is used to identify for species sold in the marketplace.
    [Show full text]
  • Parameterisation and Application of Dynamic Energy Budget Model to Sea Cucumber Apostichopus Japonicus
    Vol. 9: 1–8, 2017 AQUACULTURE ENVIRONMENT INTERACTIONS Published January 10 doi: 10.3354/aei00210 Aquacult Environ Interact OPENPEN ACCESSCCESS Parameterisation and application of dynamic energy budget model to sea cucumber Apostichopus japonicus Jeffrey S. Ren1, Jeanie Stenton-Dozey1, Jihong Zhang2,3,* 1National Institute of Water and Atmospheric Research, 10 Kyle Street, PO Box 8602, Christchurch 8440, New Zealand 2Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, 106 Nanjing Road, Qingdao 266071, PR China 3Function Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, 1 Wenhai Road, Aoshanwei, Jimo, Qingdao 266200, PR China ABSTRACT: The sea cucumber Apostichopus japonicus is an important aquaculture species in China. As global interest in sustainable aquaculture grows, the species has increasingly been used for co-culture in integrated multitrophic aquaculture (IMTA). To provide a basis for opti - mising stocking density in IMTA systems, we parameterised and validated a standard dynamic energy budget (DEB) model for the sea cucumber. The covariation method was used to estimate parameters of the model with the DEBtool package. The method is based on minimisation of the weighted sum of squared deviation for datasets and model predictions in one single-step pro- cedure. Implementation of the package requires meaningful initial values of parameters, which were estimated using non-linear regression. Parameterisation of the model suggested that the accuracy of the lower (TL) and upper (TH) boundaries of tolerance temperatures are particularly important, as these would trigger the unique behaviour of the sea cucumber for hibernation and aestivation. After parameterisation, the model was validated with datasets from a shellfish aqua- culture environment in which sea cucumbers were co-cultured with the scallop Chlamys farreri and Pacific oyster Crassostrea gigas at various combinations of density.
    [Show full text]
  • Genomic Insights of Body Plan Transitions from Bilateral to Pentameral Symmetry in Echinoderms
    ARTICLE https://doi.org/10.1038/s42003-020-1091-1 OPEN Genomic insights of body plan transitions from bilateral to pentameral symmetry in Echinoderms Yongxin Li1, Akihito Omori 2, Rachel L. Flores3, Sheri Satterfield3, Christine Nguyen3, Tatsuya Ota 4, Toko Tsurugaya5, Tetsuro Ikuta6,7, Kazuho Ikeo4, Mani Kikuchi8, Jason C. K. Leong9, Adrian Reich 10, Meng Hao1, Wenting Wan1, Yang Dong 11, Yaondong Ren1, Si Zhang12, Tao Zeng 12, Masahiro Uesaka13, 1234567890():,; Yui Uchida9,14, Xueyan Li 1, Tomoko F. Shibata9, Takahiro Bino15, Kota Ogawa16, Shuji Shigenobu 15, Mariko Kondo 9, Fayou Wang12, Luonan Chen 12,17, Gary Wessel10, Hidetoshi Saiga7,9,18, ✉ ✉ R. Andrew Cameron 19, Brian Livingston3, Cynthia Bradham20, Wen Wang 1,21,22 & Naoki Irie 9,14,22 Echinoderms are an exceptional group of bilaterians that develop pentameral adult symmetry from a bilaterally symmetric larva. However, the genetic basis in evolution and development of this unique transformation remains to be clarified. Here we report newly sequenced genomes, developmental transcriptomes, and proteomes of diverse echinoderms including the green sea urchin (L. variegatus), a sea cucumber (A. japonicus), and with particular emphasis on a sister group of the earliest-diverged echinoderms, the feather star (A. japo- nica). We learned that the last common ancestor of echinoderms retained a well-organized Hox cluster reminiscent of the hemichordate, and had gene sets involved in endoskeleton development. Further, unlike in other animal groups, the most conserved developmental stages were not at the body plan establishing phase, and genes normally involved in bila- terality appear to function in pentameric axis development. These results enhance our understanding of the divergence of protostomes and deuterostomes almost 500 Mya.
    [Show full text]
  • Purification of Glucose 6-Phosphate Dehydrogenase From
    MARINE SCIENCE AND TECHNOLOGY BULLETIN VOLUME: 9 ISSUE: 2 DECEMBER 2020 Editor-in-Chief Adem Yavuz Sönmez Kastamonu University, Turkey Co-Editor Semih Kale Çanakkale Onsekiz Mart University, Turkey Section Editors Soner Bilen Kastamonu University, Turkey Ertuğrul Terzi Kastamonu University, Turkey Ali Eslem Kadak Kastamonu University, Turkey Gökhan Arslan Atatürk University, Turkey Statistics Editor Aycan Mutlu Yağanoğlu Atatürk University, Turkey Foreign Language Editor Muhammet Sinan Alpsoy Kastamonu University, Turkey Editorial Board Agus Oman Sudrajat Institut Pertanian Bogor, Indonesia Anca Nicoleta Şuţan University of Piteşti, Romania Antanas Kontautas Klaipeda University, Lithuania Arya Vazirzadeh Shiraz University, Iran Barış Bayraklı Sinop University, Turkey Derya Güroy Yalova University, Turkey Fazıl Şen Yüzüncü Yıl University, Turkey Gouranga Biswas Kakdwip Research Centre of Central Institute, India Hasan Hüseyin Atar Ankara University, Turkey İlhan Altınok Karadeniz Technical University, Turkey Liliana Török Danube Delta National Institute for Research & Development, Romania Mahmut Elp Kastamonu University, Turkey Marina Alexandrovna Sazykina Southern Federal University, Russia Mehmet Gökoğlu Akdeniz University, Turkey Muhammad Naeem Khan University of the Punjab, Pakistan Sajmir Beqiraj University of Tirana, Albania Sefa Acarlı Çanakkale Onsekiz Mart University, Turkey Sitti Zayda B. Halun Mindanao State University, Philippines Sonya Uzunova Institute of Fishing Resources, Bulgaria Süleyman Özdemir Sinop University, Turkey
    [Show full text]
  • Abstract Book
    January 21-25, 2013 Alaska Marine Science Symposium hotel captain cook & Dena’ina center • anchorage, alaska Bill Rome Glenn Aronmits Hansen Kira Ross McElwee ShowcaSing ocean reSearch in the arctic ocean, Bering Sea, and gulf of alaSka alaskamarinescience.org Glenn Aronmits Index This Index follows the chronological order of the 2013 AMSS Keynote and Plenary speakers Poster presentations follow and are in first author alphabetical order according to subtopic, within their LME category Editor: Janet Duffy-Anderson Organization: Crystal Benson-Carlough Abstract Review Committee: Carrie Eischens (Chair), George Hart, Scott Pegau, Danielle Dickson, Janet Duffy-Anderson, Thomas Van Pelt, Francis Wiese, Warren Horowitz, Marilyn Sigman, Darcy Dugan, Cynthia Suchman, Molly McCammon, Rosa Meehan, Robin Dublin, Heather McCarty Cover Design: Eric Cline Produced by: NOAA Alaska Fisheries Science Center / North Pacific Research Board Printed by: NOAA Alaska Fisheries Science Center, Seattle, Washington www.alaskamarinescience.org i ii Welcome and Keynotes Monday January 21 Keynotes Cynthia Opening Remarks & Welcome 1:30 – 2:30 Suchman 2:30 – 3:00 Jeremy Mathis Preparing for the Challenges of Ocean Acidification In Alaska 30 Testing the Invasion Process: Survival, Dispersal, Genetic Jessica Miller Characterization, and Attenuation of Marine Biota on the 2011 31 3:00 – 3:30 Japanese Tsunami Marine Debris Field 3:30 – 4:00 Edward Farley Chinook Salmon and the Marine Environment 32 4:00 – 4:30 Judith Connor Technologies for Ocean Studies 33 EVENING POSTER
    [Show full text]
  • Promoting Nutritious Food Systems in the Pacific Islands About CTA
    Profiling Bioactive Compounds and Key Nutrients in Pacific Island Crops and Marine Resources Promoting Nutritious Food Systems in the Pacific Islands About CTA The Technical Centre for Agricultural and Rural Cooperation (CTA) is a joint international institution of the African, Caribbean and Pacific (ACP) Group of States and the European Union (EU). CTA operates under the framework of the Cotonou Agreement and is funded CMYK LOGO by the EU. For more information on CTA, visit www.cta.int Written by Sunil Singh, The University of the South Pacific (USP), School of Biological and Chemical Sciences, Faculty of Science Technology and Environment Edited by Judith Ann Francis and Jana Dietershagen, CTA Designed by Stéphanie Leroy Disclaimer This work has been made with the financial assistance of the European Union. However, it remains under the sole responsibility of its author(s) and never reflects CTA’s or its co-publisher’s or European Union’s opinions or statements whatsoever nor as well the opinion of any country or State member. The user should make his/her own evaluation as to the appropriateness of any statements, argumentations, experimental technique or method as described in the work. Copyright notice This work is the intellectual property of CTA and its co-publishers. Its dissemination is encouraged for private study, research, teaching, under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/ legalcode), provided that appropriate acknowledgement is made: • of CTA’s copyright, in accordance with the license Creative Commons 4.0, and of EU financing, by including the name of the author, the title of the article and the following notice “© CTA 2018 EU financing”, • and that CTA’s or its co-publishers or EU’s endorsement of authors’ views, products or services is not implied in any way, by including the standard CTA disclaimer.
    [Show full text]
  • Cop13 Doc. 37.2
    CoP13 Doc. 37.2 CONVENTION ON INTERNATIONAL TRADE IN ENDANGERED SPECIES OF WILD FAUNA AND FLORA ____________________ Thirteenth meeting of the Conference of the Parties Bangkok (Thailand), 2-14 October 2004 Interpretation and implementation of the Convention Species trade and conservation issues Sea cucumbers IMPLEMENTATION OF DECISION 12.60 1. This document has been submitted by Ecuador. Introduction 2. The international trade in sea cucumbers remains a significant conservation issue, and Ecuador has listed one of its native – and heavily exploited – species (Isostichopus fuscus) in Appendix III to control illegal exports and ensure sustainable harvest in the Galapagos Islands. 3. At the 12th meeting of the Conference of the Parties (Santiago, 2002), the United States of America submitted document CoP12 Doc. 45 on the Trade in sea cucumbers in the families Holothuriidae and Stichopodidae. That document described the extensive global trade in various species of sea cucumbers and led to the adoption of Decisions 12.60 and 12.61. 4. Decision 12.61 directs the Secretariat, in part, to the following: b) contingent on the availability of external funding, cooperate with other relevant bodies, including the fisheries sector, to convene a technical workshop to consider and review biological and trade information that would assist in establishing conservation priorities and actions to secure the conservation status of sea cucumbers in these families; and c) contract the preparation of a document for discussion at the technical workshop. This document should contain all relevant available information concerning the status, catches and bycatches of, and trade in specimens of species in the families Holothuriidae and Stichopodidae and on any domestic measures for their conservation and protection, and a review of the adequacy of such measures.
    [Show full text]
  • SPC Beche-De-Mer Infomation Bulletin
    SPC Beche-de-mer Information Bulletin #23 – February 2006 39 AbstractsAbstracts && publicationspublications beche-de-merbeche-de-mer SPC translates two chapters of Chantal Conand’s 1989 thesis1:“Aspidochirote holothurians of the New Caledonia lagoon: Biology, ecology and exploitation” SPC's Reef Fisheries Observatory has organised the translation of two chapters of Chantal Conand's semi- nal thesis on the ecology and biology of sea cucumbers. Although this thesis was published in French in 1989, a long time ago, many results were never made available to the wider audience of non-French speak- ers. Since the initial publication of this work, interest on holothurian resources and their management has only increased, and SPC hopes this translation will be of use to fishers, researchers and managers alike. Chantal Conand is now Professor Emeritus at La Reunion University. Her PhD was undertaken at the ORSTOM (now IRD) Center in New Caledonia, and the Laboratory Océanographie Biologique of the University of Bretagne Occidentale in France. She is still involved in sea cucumber research, as the sci- entific editor of this Beche-de-mer Bulletin published by SPC and several programmes of regional and international interest. The translated parts of the PhD thesis are listed below: Part of Chapter two: Ecology of the aspidochirote holothurians 4. Autoecology 4.1 Analytical methods 4.2 General results on distribution, density and biomass 4.3 Ecology of main species 4.4 Discussion of results 5. Taxocoenoses 5.1 Methods 5.2 Richness of the various biotopes 5.3 Main taxocoenosess 5.4 Discussion 5.5 Factors of the distribution 6.
    [Show full text]
  • La Bêche-De-Mer, Bulletin D'information De La CPS N°30
    Secrétariat général ISSN 1025-742X de la Communauté du Pacifique Numéro 30 – Septembre 2010 LA BÊCHE-DE-MER bulletin d’information Sommaire Éditorial Renforcer les capacités de gestion durable Le présent numéro de La Bêche-de-mer vous propose huit articles sur l’élevage et des ressources en holothuries dans l’océan Indien occidental la taxonomie des holothuries ainsi que sur la situation de la pêche d’holothuries N. Muthiga et al. p. 3 dans divers pays. De toute évidence, la gestion des ressources en holothuries est Signes d’une surpêche aiguë des ressources désormais prise au sérieux dans la plupart des pays. De nombreuses études de en holothuries dans le Sultanat d’Oman terrain ont révélé que, partout et sans exception aucune, les populations sauvages K.M. Al-Rashdi and M.R. Claereboudt p. 10 d’holothuries visées par la pêche sont appauvries. Les écologistes ont émis des État des lieux de la pêche des holothuries au Sri Lanka recommandations aux ministères de tutelle dans tous les pays producteurs de D.C.T. Dissanayake et al. p. 14 bêche-de-mer. Les prochaines années nous diront si ces recommandations sont Méthodes de ramassage et de transfor- suivies et si des méthodes d’exploitation sans extraction, comme l’aquaculture, mation des holothuries : quelle est leur connaissent un essor suffisant. incidence sur la qualité et la valeur des bêches-de-mer produites aux Îles Fidji ? Le premier article, rédigé par Nyawira Muthiga et al. (p. 3), résume les recom- R. Ram et al. p. 21 mandations issues d’un projet régional sur les holothuries, financé par une sub- Effet de la température de l’eau sur la survie et la croissance des juvéniles vention MASMA (Marine Science for Management, les sciences de la mer au ser- endobenthiques de Holothuria scabra vice de la gestion) et dirigé par la Wildlife Conservation Society et l’Université de (Echinodermata : Holothuroidea) élevés La Réunion.
    [Show full text]
  • The Sea Cucumber Holothuria (Halodeima) Atra (Jager, 1833), In
    The Sea Cucumber Holothuria (Halodeima) atra (Jager, 1833), in South Tarawa Lagoon (Republic of Kiribati): Environmental Variability, Population Biology and Fishing Pressure. Teatim Tamaroa A thesis submitted as partial fulfilment for the degree of Master of Science in Marine Biology 2010 Abstract Holothuria atra or lollyfish is the most common sea cucumber in the Pacific and Indian Oceans. The current status of Holothria atra at 13 sites of South Tarawa lagoon (Republic of Kiribati) was established by using biological surveys and fishers‟ questionnaires. A preliminary investigation was conducted in order to assess how and why environmental variability and fishing pressure have affected the spatial and temporal distribution, mean abundant and mean size of this species at the sites. The 13 sites were selected randomly, and marked with a GPS on the map of South Tarawa. Sedimentary characteristics were determined for each site, and a qualitative assessment of sites health was made. Lollyfish length, biomass and abundance and transect density were calculated for each site. The weight of organic matter content and size of sediment sample were determined. Data were analysed using Kruskal- Walis (KW) and Repeated measures (RM) ANOVA tests. This thesis shows that the environmental variability could not offer reasons as to why the biological data of lollyfish varied from one site to another. However, other factors that were tested may explain the variation in biological data. Fishing pressure is one of those parameters that can regulate the lollyfish distribution and density and responses from local fishers indicate that fishing pressure is high and that the lollyfish resource is under considerable harvest pressure.
    [Show full text]
  • Yellow Coloured Mats from Lava Tubes of La Palma (Canary Islands, Spain
    www.nature.com/scientificreports OPEN Yellow coloured mats from lava tubes of La Palma (Canary Islands, Spain) are dominated by Received: 27 July 2017 Accepted: 16 January 2018 metabolically active Actinobacteria Published: xx xx xxxx Jose L. Gonzalez-Pimentel1, Ana Z. Miller 1, Valme Jurado1, Leonila Laiz1, Manuel F. C. Pereira2 & Cesareo Saiz-Jimenez1 Microbial diversity in lava tubes from Canary Islands (Spain) has never been explored thus far ofering a unique opportunity to study subsurface microbiology. Abundant yellow coloured mats developing on coralloid speleothems in a lava tube from La Palma Islands were studied by next-generation sequencing and DNA/RNA clone library analyses for investigating both total and metabolically active bacteria. In addition, morphological and mineralogical characterization was performed by feld emission scanning electron microscopy (FESEM), micro-computed tomography, X-ray difraction and infrared spectroscopy to contextualize sequence data. This approach showed that the coralloid speleothems consist of banded siliceous stalactites composed of opal-A and hydrated halloysite. Analytical pyrolysis was also conducted to infer the possible origin of cave wall pigmentation, revealing that lignin degradation compounds can contribute to speleothem colour. Our RNA-based study showed for the frst time that members of the phylum Actinobacteria, with 55% of the clones belonging to Euzebyales order, were metabolically active components of yellow mats. In contrast, the DNA clone library revealed that around 45% of clones were afliated to Proteobacteria. Composition of microbial phyla obtained by NGS reinforced the DNA clone library data at the phylum level, in which Proteobacteria was the most abundant phylum followed by Actinobacteria. Microbial mats frequently coat extensive areas of walls and ceilings of karstic caves and lava tubes, usually devel- oping yellow, tan, orange, grey, pink and white-coloured bioflms1–6.
    [Show full text]