DOCSLIB.ORG

Part 17. the Cephalaspidea, Anaspidea, Pleurobranchida, and Sacoglossa (Mollusca: Gastropoda: Heterobranchia)

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Part 17. the Cephalaspidea, Anaspidea, Pleurobranchida, and Sacoglossa (Mollusca: Gastropoda: Heterobranchia) Archiv für Molluskenkunde 147 (1) 1–48 Frankfurt am Main, 29 June 2018 Results of the Rumphius Biohistorical Expedition to Ambon (1990). Part 17. The Cephalaspidea, Anaspidea, Pleurobranchida, and Sacoglossa (Mollusca: Gastropoda: Heterobranchia) Nathalie Yonow1 & Kathe R. Jensen2 1 Swansea Ecology Research Team, Department of Biosciences, Swansea University, Singleton Park, Swansea SA2 8PP, Wales, United Kingdom ([email protected]). 2 Zoological Museum, Universitetsparken 15, DK-2100 Copenhagen, Denmark. • Corresponding author: N. Yonow. Abstract. This is the final report describing the heterobranch molluscs collected by the Rumphius Bio historical Expedition to Ambon during November and December 1990. This part deals with the non‑nudibranch higher clades (Cephalaspidea, Anaspidea, Sacoglossa, and Pleurobranchida). Forty‑one species belonging to 21 genera are identified from Ambon and nearby localities in the central Indonesian archipelago; 2 species are new to science, and 3 species are new records for Indonesia. The new species Haminoea edmundsi is described from the mangroves near Paso in Ambon Bay, and the new species Mourgona anisti is described from Latuhalat, also Ambon. A discussion and table of all named species of Plakobranchus are provided, and the original descriptions and museum specimens from other localities are compared in an effort to clarify some of the problems surrounding these species. Chelidonura sandrana Rudman, 1973 and C. babai Gosliner, 1988 are synonymised with C. tsurugensis Baba & Abe, 1959. Recent corrections of names and/or dates of publication are highlighted: Phanerophthalmus olivaceus (Ehrenberg, 1828), Aplysia argus Rüppell & Leuckart, 1830, Dolabella auricularia ([Lightfoot], 1786), Elysia faustula Bergh, 1871, Cyerce elegans Bergh, 1870, Euselenops luniceps (Cuvier, 1816), and Pleurobranchus peronii Cuvier, 1804. Key words. Biogeography, Indonesia, taxonomy, Anaspidea, Cephalaspidea, Pleurobranchida, Sacoglossa. DOI. https://doi.org/10.1127/arch.moll/147/001‑048 Contents Introduction ......................................... 2 Anaspidea Materials and Methods ................................. 2 Family Aplysiidae Taxonomic Report ..................................... 3 Aplysia argus Rüppell & Leuckart, 1830 ............... 9 “Lower Heterobranchia” Aplysia parvula Mörch, 1863 ....................... 10 Family Aplustridae Aplysia sp. 10 Hydatina physis (Linnaeus, 1758) . 3 Dolabella auricularia ([Lightfoot], 1876) ............. 10 Cephalaspidea Petalifera cf. pasirana (Bergh, 1905) . 11 Family Haminoeidae Stylocheilus longicauda (Quoy & Gaimard, 1824) ....... 12 Haminoea edmundsi sp. nov. 3 Pleurobranchida Phanerophthalmus olivaceus (Ehrenberg, 1828) ......... 4 Family Pleurobranchidae Smaragdinella calyculata (Broderip & Sowerby, 1829) .... 5 Berthellina citrina (Rüppell & Leuckart, 1828) ......... 12 Family Bullidae Bulla ampulla Linnaeus, 1758 ....................... 5 Pleurobranchus albiguttatus (Bergh, 1905) ............ 13 Family Aglajidae Pleurobranchus peronii Cuvier, 1804 . 14 Chelidonura amoena Bergh, 1905. 6 Family Pleurobranchaeidae Chelidonura electra Rudman, 1970. 6 Euselenops luniceps (Cuvier, 1816) .................. 14 Chelidonura inornata Baba, 1949 ..................... 7 Sacoglossa Chelidonura tsurugensis Baba & Abe, 1959 . 8 Family Juliidae Chelidonura sp. 9 Julia exquisita Gould, 1862 ........................ 15 Philinopsis gardineri (Eliot, 1903) . 9 Julia zebra Kawaguti, 1981. 16 © E. Schweizerbart’sche Verlagsbuchhandlung (Nägele u. Obermiller) and Senckenberg Gesellschaft für Naturforschung, 2018, ISSN 1869-0963.
Load more

Recommended publications
  • Documenti Del Gruppo Malacologico Livornese
    Documenti del Gruppo Malacologico Livornese Enzo Campani Aplysiidae, Dolabriferidae e Pleurobranchidae in Mediterraneo Aprile 1998 Pleurobranchidae de Férussac, 1822 Genus Pleurobranchus Cuvier, 1804 Pleurobranchus forskalii (Rueppel & Leuckart, 1831) Non dispongo di una foto della conchiglia e non so se la possiede. Riporto questo taxon solo perché compare nel “Catalogo annotato” mediterraneo. Non è riportato da Thompson né da Pruvot-Fol per il Mediterraneo; compare invece sul CLEMAM. Pleurobranchus membranaceus (Montagu 1815) La foto rappresenta un esemplare di piccola taglia (3 cm) presumibilmente giovanile da me raccolto in località Antignano Miramare, il cui aspetto corrisponde poco alla descrizione della forma adulta per avere un mantello che ricopre quasi interamente il piede, mentre nell’adulto questo è debordante su tutti lati. Tuttavia l’epidermide è cosparsa di piccoli tubercoli retrattili come nell’adulto. La forma della conchiglia corrisponde poi a quella raffigurata in Pruvot-Fol, con spira praticamente assente. In Thompson invece la conchiglia ha un aspetto diverso, ma è riferita ad esemplare molto giovane di pochi millimetri. Il colore della conchiglia fresca è rosato-ocraceo e le dimensioni sono circa pari a metà di quelle dell’animale. Pleurobranchus testudinarius Cantraine, 1835 Non ho mai trovato questa specie e la foto proviene dalle ricerche via Internet. L’aspetto del mollusco è tipico per la serie di grossi tubercoli a base poligonale presenti sull’epidermide e per la profonda incisione del lato anteriore del mantello nella quale compaiono i rinofori. La conchiglia dovrebbe essere presente solo allo stadio giovanile, ma il condizionale è d’obbligo; il suo aspetto è simile a quello della conchiglia della specie precedente ed è ben raffigurata in Pruvot-Fol.
    [Show full text]
  • Biodiversity Journal, 2020, 11 (4): 861–870
    Biodiversity Journal, 2020, 11 (4): 861–870 https://doi.org/10.31396/Biodiv.Jour.2020.11.4.861.870 The biodiversity of the marine Heterobranchia fauna along the central-eastern coast of Sicily, Ionian Sea Andrea Lombardo* & Giuliana Marletta Department of Biological, Geological and Environmental Sciences - Section of Animal Biology, University of Catania, via Androne 81, 95124 Catania, Italy *Corresponding author: [email protected] ABSTRACT The first updated list of the marine Heterobranchia for the central-eastern coast of Sicily (Italy) is here reported. This study was carried out, through a total of 271 scuba dives, from 2017 to the beginning of 2020 in four sites located along the Ionian coasts of Sicily: Catania, Aci Trezza, Santa Maria La Scala and Santa Tecla. Through a photographic data collection, 95 taxa, representing 17.27% of all Mediterranean marine Heterobranchia, were reported. The order with the highest number of found species was that of Nudibranchia. Among the study areas, Catania, Santa Maria La Scala and Santa Tecla had not a remarkable difference in the number of species, while Aci Trezza had the lowest number of species. Moreover, among the 95 taxa, four species considered rare and six non-indigenous species have been recorded. Since the presence of a high diversity of sea slugs in a relatively small area, the central-eastern coast of Sicily could be considered a zone of high biodiversity for the marine Heterobranchia fauna. KEY WORDS diversity; marine Heterobranchia; Mediterranean Sea; sea slugs; species list. Received 08.07.2020; accepted 08.10.2020; published online 20.11.2020 INTRODUCTION more researches were carried out (Cattaneo Vietti & Chemello, 1987).
    [Show full text]
  • Benthic Data Sheet
    DEMERSAL OTTER/BEAM TRAWL DATA SHEET RESEARCH VESSEL_____________________(1/20/13 Version*) CLASS__________________;DATE_____________;NAME:___________________________; DEVICE DETAILS_________ LOCATION (OVERBOARD): LAT_______________________; LONG______________________________ LOCATION (AT DEPTH): LAT_______________________; LONG_____________________________; DEPTH___________ LOCATION (START UP): LAT_______________________; LONG______________________________;.DEPTH__________ LOCATION (ONBOARD): LAT_______________________; LONG______________________________ TIME: IN______AT DEPTH_______START UP_______SURFACE_______.DURATION OF TRAWL________; SHIP SPEED__________; WEATHER__________________; SEA STATE__________________; AIR TEMP______________ SURFACE TEMP__________; PHYS. OCE. NOTES______________________; NOTES_______________________________ INVERTEBRATES Phylum Porifera Order Pennatulacea (sea pens) Class Calcarea __________________________________ Family Stachyptilidae Class Demospongiae (Vase sponge) _________________ Stachyptilum superbum_____________________ Class Hexactinellida (Hyalospongia- glass sponge) Suborder Subsessiliflorae Subclass Hexasterophora Family Pennatulidae Order Hexactinosida Ptilosarcus gurneyi________________________ Family Aphrocallistidae Family Virgulariidae Aphrocallistes vastus ______________________ Acanthoptilum sp. ________________________ Other__________________________________________ Stylatula elongata_________________________ Phylum Cnidaria (Coelenterata) Virgularia sp.____________________________ Other_______________________________________
    [Show full text]
  • An Annotated Checklist of the Marine Macroinvertebrates of Alaska David T
    NOAA Professional Paper NMFS 19 An annotated checklist of the marine macroinvertebrates of Alaska David T. Drumm • Katherine P. Maslenikov Robert Van Syoc • James W. Orr • Robert R. Lauth Duane E. Stevenson • Theodore W. Pietsch November 2016 U.S. Department of Commerce NOAA Professional Penny Pritzker Secretary of Commerce National Oceanic Papers NMFS and Atmospheric Administration Kathryn D. Sullivan Scientific Editor* Administrator Richard Langton National Marine National Marine Fisheries Service Fisheries Service Northeast Fisheries Science Center Maine Field Station Eileen Sobeck 17 Godfrey Drive, Suite 1 Assistant Administrator Orono, Maine 04473 for Fisheries Associate Editor Kathryn Dennis National Marine Fisheries Service Office of Science and Technology Economics and Social Analysis Division 1845 Wasp Blvd., Bldg. 178 Honolulu, Hawaii 96818 Managing Editor Shelley Arenas National Marine Fisheries Service Scientific Publications Office 7600 Sand Point Way NE Seattle, Washington 98115 Editorial Committee Ann C. Matarese National Marine Fisheries Service James W. Orr National Marine Fisheries Service The NOAA Professional Paper NMFS (ISSN 1931-4590) series is pub- lished by the Scientific Publications Of- *Bruce Mundy (PIFSC) was Scientific Editor during the fice, National Marine Fisheries Service, scientific editing and preparation of this report. NOAA, 7600 Sand Point Way NE, Seattle, WA 98115. The Secretary of Commerce has The NOAA Professional Paper NMFS series carries peer-reviewed, lengthy original determined that the publication of research reports, taxonomic keys, species synopses, flora and fauna studies, and data- this series is necessary in the transac- intensive reports on investigations in fishery science, engineering, and economics. tion of the public business required by law of this Department.
    [Show full text]
  • <I>Pleurobranchus</I> Cuvier, 1804 (Gastropoda, Opisthobranchia)
    BULLETINOF MARINESCIENCE.59(1): 150-157. 1996 A NEW SPECIES OF NOTASPIDEAN OF THE GENUS PLEUROBRANCHUS CUVIER, 1804 (GASTROPODA, OPISTHOBRANCHIA) FROM THE CAPE VERDE ARCHIPELAGO J. L. Cervera, R. Cattaneo- Vietti and M. Edmunds ABSTRACT A new species of notaspidean, Pleurobranchus garciagomezi, is described from Ilha do Sal, Cape Verde Archipelago off the coast of West Africa. The color of the mantle with its conspicuous opaque white network, the shape of the shell and the anatomy of the reproductive system distinguish this species from all other Atlantic Pleurobranchus. A color plate of P. garciagomezi together with two other species of the genus is given to illustrate the distinc- tiveness of this species. The first records of opisthobranch mollusks from the Cape Verde Archipelago were those of Rochebrune (1881, 1882) and Eliot (1906). More recently, knowl- edge of the opisthobranch fauna of this archipelago has increased as a result of material collected during the First Iberian Expedition to the Cape Verde Islands in 1985 (Ortea and Garcfa-G6mez, 1986; Ortea, 1988, 1989a, 1989b; Ortea and Rolan, 1989; Avila et al., 1992). However, few data are available regarding the notaspideans from these islands or from elsewhere in the eastern Atlantic. Species of this order are not as well known in the eastern Atlantic as they are from the western Atlantic (Marcus, 1984). From the Cape Verde Islands, Rochebrune (1881) recorded Berthella stellata (Risso, 1826). BerthelUna edwardsi (Vayssiere, 1896) was probably also de- scribed, in part, from material from Cape Verde (White, 1955). Haefelfinger and Kress (1970) reported Pleurobranchaea meckelii (Blainville, 1825) and an un- certain species of Berthellina.
    [Show full text]
  • Spawning and Development of Some Hawaiian Marine Gastropods! JENS MATHIAS OSTERGAARD 2
    Spawning and Development of Some Hawaiian Marine Gastropods! JENS MATHIAS OSTERGAARD 2 MANY PERSONS, at various marine biological lead pencil by the author from observation stations situated throughout the world, hav« under low power of the . compound micro­ investigated the spawning habits and larval scope. A micrometer scale was used so that development of marine gastropods. Some of measurements in fractions of. millimeters the recorded observations date back to the could be made readily. middle part of the last century or earlier. All the species investigated were obtained Various methods have been employed to ob­ in water not over 3 meters in depth, and most tain the materials for study, but always the of the egg structures were deposited in the effort put forth has been well rewarded, for laboratory by isolated animals. · When the the field is exceedingly rich. -It is noteworthy spawns were obtained from the reefs, or else­ that the study of plankton alone has been where, careful checks had been made to as­ able to throw much light 011 the metamor­ certain their identity, which in most cases phosis of the larvae of many species. This is was later verified. No record of any species a field of investigation that has an economic whose generic .position was unknown has as well as an academic value, inasmuch as been included. Hence, discussion of a con­ these minute planktonic larvae make a con­ siderable number of additional species of the siderable contribution to the food supply of Nudibranchiata, whose systematic position larger organisms, which in turn may serve has not yet been fully determined, awaits as food for fishes that are of direct economic later publication.
    [Show full text]
  • A Polyvalent and Universal Tool for Genomic Studies In
    A polyvalent and universal tool for genomic studies in gastropod molluscs (Heterobranchia: Tectipleura) Juan Moles1 and Gonzalo Giribet1 1Harvard University Faculty of Arts and Sciences April 28, 2020 Abstract Molluscs are the second most diverse animal phylum and heterobranch gastropods present ~44,000 species. These comprise fascinating creatures with a huge morphological and ecological disparity. Such great diversity comes with even larger phyloge- netic uncertainty and many taxa have been largely neglected in molecular assessments. Genomic tools have provided resolution to deep cladogenic events but generating large numbers of transcriptomes/genomes is expensive and usually requires fresh material. Here we leverage a target enrichment approach to design and synthesize a probe set based on available genomes and transcriptomes across Heterobranchia. Our probe set contains 57,606 70mer baits and targets a total of 2,259 ultra-conserved elements (UCEs). Post-sequencing capture efficiency was tested against 31 marine heterobranchs from major groups, includ- ing Acochlidia, Acteonoidea, Aplysiida, Cephalaspidea, Pleurobranchida, Pteropoda, Runcinida, Sacoglossa, and Umbraculida. The combined Trinity and Velvet assemblies recovered up to 2,211 UCEs in Tectipleura and up to 1,978 in Nudipleura, the most distantly related taxon to our core study group. Total alignment length was 525,599 bp and contained 52% informative sites and 21% missing data. Maximum-likelihood and Bayesian inference approaches recovered the monophyly of all orders tested as well as the larger clades Nudipleura, Panpulmonata, and Euopisthobranchia. The successful enrichment of diversely preserved material and DNA concentrations demonstrate the polyvalent nature of UCEs, and the universality of the probe set designed. We believe this probe set will enable multiple, interesting lines of research, that will benefit from an inexpensive and largely informative tool that will, additionally, benefit from the access to museum collections to gather genomic data.
    [Show full text]
  • A New Phylogeny of the Cephalaspidea (Gastropoda: Heterobranchia) Based on Expanded Taxon Sampling and Gene Markers Q ⇑ Trond R
    Molecular Phylogenetics and Evolution 89 (2015) 130–150 Contents lists available at ScienceDirect Molecular Phylogenetics and Evolution journal homepage: www.elsevier.com/locate/ympev A new phylogeny of the Cephalaspidea (Gastropoda: Heterobranchia) based on expanded taxon sampling and gene markers q ⇑ Trond R. Oskars a, , Philippe Bouchet b, Manuel António E. Malaquias a a Phylogenetic Systematics and Evolution Research Group, Section of Taxonomy and Evolution, Department of Natural History, University Museum of Bergen, University of Bergen, PB 7800, 5020 Bergen, Norway b Muséum National d’Histoire Naturelle, UMR 7205, ISyEB, 55 rue de Buffon, F-75231 Paris cedex 05, France article info abstract Article history: The Cephalaspidea is a diverse marine clade of euthyneuran gastropods with many groups still known Received 28 November 2014 largely from shells or scant anatomical data. The definition of the group and the relationships between Revised 14 March 2015 members has been hampered by the difficulty of establishing sound synapomorphies, but the advent Accepted 8 April 2015 of molecular phylogenetics is helping to change significantly this situation. Yet, because of limited taxon Available online 24 April 2015 sampling and few genetic markers employed in previous studies, many questions about the sister rela- tionships and monophyletic status of several families remained open. Keywords: In this study 109 species of Cephalaspidea were included covering 100% of traditional family-level Gastropoda diversity (12 families) and 50% of all genera (33 genera). Bayesian and maximum likelihood phylogenet- Euthyneura Bubble snails ics analyses based on two mitochondrial (COI, 16S rRNA) and two nuclear gene markers (28S rRNA and Cephalaspids Histone-3) were used to infer the relationships of Cephalaspidea.
    [Show full text]
  • A Check List of Opisthobranch Snails of the Karachi Coast
    A check list of opisthobranch snails of the Karachi coast Item Type article Authors Kazmi, Quddusi B.; Tirmizi, Nasima M.; Zehra, Itrat Download date 01/10/2021 23:01:17 Link to Item http://hdl.handle.net/1834/33270 Pakistan Journal of Marine Sciences, Vol.5(1), 69-104, 1996. A CHECK LIST OF OPISTHOBRANCH SNAILS OF THE KARACID COAST Quddusi B.Kazmi, Nasima M.Tirmizi and Itrat Zebra Marine Reference Collection and Resource Centre(QBK; NMT); Centre of Excellence in Marine Biology (IZ), University of Karachi, Karachi-75270, Pakistan ABSTRACT: The check list deals with 44 species of opisthobranchs belonging to Cephalaspidea (12 species), Ahaspidea (4 species), Sacoglossa (4 species), Notaspidea, (2 species) and N~ibranchia (21 species), collect­ ed from Pakistan coast of northern Arabian Sea. KEY WORDS: Sea slugs, Karachi, Sindh coast, check list INTRODUCTION Earlier studies on the opisthobranch molluscan fauna of Karachi - Sindh coast were made by Eliot (1905) and Khan et al. (1971, 1973) reporting only a few species. Since reports by Woodwards (1856), Murray (1887) and Sowerby (1895) and not avail­ able nothing can be said relevant to opisthobranchs in these works. One order Thocosomata of this subclass was treated by Frontier (1963), Fatima (1988) and Zebra & Nayeem (199:5); this order is not incorporated here due to its planktonic exis­ tence. Tirmizi (1977, restricted) dealt with only few species of opisthobranchs and other molluscs. Tirmizi & Zebra (1982) gave in their generic key some opisthobranchs, later however only two species were reported in a monographic work on gastropods (Tirmizi & Zebra, 1984). Some work has been done on the reproductive biology (Zebra et al.,l988, 1995); from the HEJ Research Institute of Chemistry, University of Karachi biochemical substances from an anaspid Aplysia juliana are reported (Rahman, et al., 1991), the specimens are not seen by us.
    [Show full text]
  • From the Marshall Islands, Including 57 New Records 1
    Pacific Science (1983), vol. 37, no. 3 © 1984 by the University of Hawaii Press. All rights reserved Notes on Some Opisthobranchia (Mollusca: Gastropoda) from the Marshall Islands, Including 57 New Records 1 SCOTT JOHNSON2 and LISA M. BOUCHER2 ABSTRACT: The rich opisthobranch fauna of the Marshall Islands has re­ mained largely unstudied because of the geographic remoteness of these Pacific islands. We report on a long-term collection ofOpisthobranchia assembled from the atolls of Bikini, Enewetak, Kwajalein, Rongelap, and Ujelang . Fifty-seven new records for the Marshall Islands are recorded, raising to 103 the number of species reported from these islands. Aspects ofthe morphology, ecology, devel­ opment, and systematics of 76 of these species are discussed. THE OPISTHOBRANCH FAUNA OF THE Marshall viously named species are discussed, 57 of Islands, a group of 29 atolls and five single which are new records for the Marshall islands situated 3500 to 4400 km west south­ Islands (Table 1). west of Honolulu, Hawaii, is rich and varied but has not been reported on in any detail. Pre­ vious records of Marshall Islands' Opistho­ METHODS branchia record only 36 species and are largely restricted to three studies. Opisthobranchs The present collections were made on inter­ collected in the northern Marshalls during the tidal reefs and in shallow water by snorkeling period of nuclear testing (1946 to 1958) and and by scuba diving to depths of 25 m, both now in the U.S. National Museum, along with by day and night. additional material from Micronesia, were Descriptions, measurements, and color studied by Marcus (1965).
    [Show full text]
  • The Bubble Snails (Gastropoda, Heterobranchia) of Mozambique: an Overlooked Biodiversity Hotspot
    Mar Biodiv DOI 10.1007/s12526-016-0500-7 ORIGINAL PAPER The bubble snails (Gastropoda, Heterobranchia) of Mozambique: an overlooked biodiversity hotspot Yara Tibiriçá1,2 & Manuel António E. Malaquias3 Received: 9 October 2015 /Revised: 14 March 2016 /Accepted: 17 April 2016 # The Author(s) 2016. This article is published with open access at Springerlink.com Abstract This first account, dedicated to the shallow water Keywords Mollusca . Acteonoidea . Cephalaspidea . Sea marine heterobranch gastropods of Mozambique is presented slugs . Taxonomy . Biodiversity . Africa . Western Indian with a focus on the clades Acteonoidea and Cephalaspidea. Ocean Specimens were obtained as a result of sporadic sampling and two dedicated field campaigns between the years of 2012 and 2015, conducted along the northern and southern coasts of Introduction Mozambique. Specimens were collected by hand in the inter- tidal and subtidal reefs by snorkelling or SCUBA diving down The shallow water marine heterobranch gastropods (sea slugs to a depth of 33 m. Thirty-two species were found, of which and alikes) of the Western Indian Ocean (WIO), an area con- 22 are new records to Mozambique and five are new for the fined between the East African coast and the Saya de Malha, Western Indian Ocean. This account raises the total number of Nazareth, and Cargados Carajos banks of the Mascarene shallow water Acteonoidea and Cephalaspidea known in Plateau (Obura 2012), have received little attention when Mozambique to 39 species, which represents approximately compared to other parts of the Indo-West Pacific, and most 50 % of the Indian Ocean diversity and 83 % of the diversity accounts are relatively old with few recent contributions (e.g.
    [Show full text]
  • Bourmaud, 2003
    Museum d’Histoire Naturelle INVENTAIRE DE LA BIODIVERSITE MARINE RECIFALE A LA REUNION Chloé BOURMAUD Octobre 2003 Maître d’ouvrage : Association Parc Marin de la Réunion Maître d’œuvre : Laboratoire d’Ecologie Marine, ECOMAR Financement : Conseil Régional 1 SOMMAIRE Introduction ……………………………………………………………………………………3 PHASE I : DIAGNOSTIC ....................................................................................................... 5 I. Méthodologie ...................................................................................................................... 6 1. Scientifiques impliqués dans l’étude.............................................................................. 6 1.1. EXPERTS LOCAUX RENCONTRES................................................................... 6 1.2. EXPERTS HORS DEPARTEMENT CONTACTES ............................................. 6 2. Harmonisation des données............................................................................................ 6 2.1. LES SITES ET SECTEURS DU RECIF ................................................................ 7 2.2. LES UNITES GEOMORPHOLOGIQUES DU RECIF ......................................... 8 2.3. LE DEGRE DE VALIDITE DES ESPECES ......................................................... 8 2.4. LE NIVEAU D’ABONDANCE ............................................................................. 9 2.5. LES GROUPES TAXONOMIQUES ................................................................... 10 3. Conception d'un modèle de base de données ..............................................................
    [Show full text]