The Jewels of Neptune
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
SENCKENBERG First Observations of Attempted Nudibranch Predation By
Mar Biodiv (2012) 42281-283 DOI 10.1007/S12526-011-0097-9 SENCKENBERG SHORT COMMUNICATION First observations of attempted nudibranch predation by sea anemones Sancia E. T. van der Meij • Bastian T. Reijnen Received: 18 April 2011 /Revised: 1 June2011 /Accepted: 6 June2011 /Published online:24 June2011 © The Author(s) 2011. This article is published with open access at Springerlink.com Abstract On two separate occasions during fieldwork in Material and methods Sempoma (eastern Sabah, Malaysia), sea anemones of the family Edwardsiidae were observed attempting to The observations were made dining fieldwork on coral feed on the nudibranch speciesNembrotha lineolata and reefs in the Sempoma district (eastern Sabah, Malaysia), Phyllidia ocellata. These are the first in situ observations as part of the Sempoma Marine Ecological Expedition in of nudibranch predation by sea anemones. This new December 2010 (SMEE2010). The reported observations record is compared with known information on sea slug were made on Creach Reef (04°18'58.8"N, 118°36T7.3" predators. E) and Pasalat Reef (04°30'47.8"N, 118°44'07.8"E), at approximately 10 m depth for both observations. The Keywords Actiniaria • Coral reef • Nudibranchia • nudibranch identifications were checked against Gosliner Polyceridae • Phylidiidae et al. (2008), whereas the identification of the sea anemone was done by A. Crowtheri No material was collected. Photos were taken with a Canon 400D with a Introduction Sigma 50-mm macro lens. Several organisms are known to prey on sea slugs (Gastropoda: Opisthobranchia), including fish, crabs, Results worms and sea spiders (e.g. Trowbridge 1994; Rogers et al. -
Sea Slugs – Divers' Favorites, Taxonomists' Problems
Aquatic Science & Management, Vol. 1, No. 2, 100-110 (Oktober 2013) ISSN 2337-4403 Pascasarjana, Universitas Sam Ratulangi e-ISSN 2337-5000 http://ejournal.unsrat.ac.id/index.php/jasm/index jasm-pn00033 Sea slugs – divers’ favorites, taxonomists’ problems Siput laut – disukai para penyelam, masalah bagi para taksonom Kathe R. Jensen Zoological Museum (Natural History Museum of Denmark), Universitetsparken 15, DK-2100 Copenhagen Ø, Denmark E-mail: [email protected] Abstract: Sea slugs, or opisthobranch molluscs, are small, colorful, slow-moving, non-aggressive marine animals. This makes them highly photogenic and therefore favorites among divers. The highest diversity is found in tropical waters of the Indo-West Pacific region. Many illustrated guidebooks have been published, but a large proportion of species remain unidentified and possibly new to science. Lack of funding as well as expertise is characteristic for taxonomic research. Most taxonomists work in western countries whereas most biodiversity occurs in developing countries. Cladistic analysis and molecular studies have caused fundamental changes in opisthobranch classification as well as “instability” of scientific names. Collaboration between local and foreign scientists, amateurs and professionals, divers and academics can help discovering new species, but the success may be hampered by lack of funding as well as rigid regulations on collecting and exporting specimens for taxonomic research. Solutions to overcome these obstacles are presented. Keywords: mollusca; opisthobranchia; biodiversity; citizen science; taxonomic impediment Abstrak: Siput laut, atau moluska golongan opistobrancia, adalah hewan laut berukuran kecil, berwarna, bergerak lambat, dan tidak bersifat agresif. Alasan inilah yang membuat hewan ini sangat fotogenik dan menjadi favorit bagi para penyelam. -
Title the GENERA GYMNODORIS and NEMBROTHA from JAPAN
THE GENERA GYMNODORIS AND NEMBROTHA FROM Title JAPAN (NUDIBRANCHIA-POLYCERIDAE) Author(s) Baba, Kikutaro PUBLICATIONS OF THE SETO MARINE BIOLOGICAL Citation LABORATORY (1960), 8(1): 71-74 Issue Date 1960-05-30 URL http://hdl.handle.net/2433/174700 Right Type Departmental Bulletin Paper Textversion publisher Kyoto University THE GENERA GYMNODORIS AND NEMBROTHA FROM JAPAN (NUDIBRANCIDA-POL YCERIDAEYJ KIKUTARO BABA Biological Laboratory, Osaka Gakugei University With Plate V The two genera (Gymnodoris and Nembrotha) have recently been discussed by MACNAE (1959 ?, pp. 354-355). The hitherto recorded members of them from our territory and the adjacent waters are as below : 1. Gymnodoris bicolor (ALDER & HANCOCK, 1864) =G. citrina (BERGH, 1877); 2 G. japonica (BABA, 1930); ? G. maculata STIMPSON, 1855 J Kinuhada·modoki Loc. : Sagami Bay ; Toba and Sugashima ; Kii ; Osaka Bay; Inland Sea of Seto ; Amakusa ; Asamushi; Sado I. ; Toyama Bay ; Togi Kazanashi, W. coast of Noto Peninsula; Tsuruga B:J.y;? Takarajima I. (Tokara group of S. Kyushu). Dist.: E. Africa and Indian Ocean; N. Caledonia; Palau Is. 2. Gymnodoris alba (BERGH, 1877) Akaboshi-umiushi Loc. : Tateyama Bay ; Sagami Bay; Sugashima near Toba ; Kii. Di st. : Indian Ocean ; Philippines. 3. Gymnodoris inornata (BERGH, 1880) Kinuhada-umiushi Loc. : Tateyama Bay ; Sagami Bay ; Kii ; Osaka Bay ; Amakusa ; Nagasaki. Dist.: E. Africa and ? E. Indies. 4. Gymnodoris striata (ELioT, 1908) Kinsen-umiushi Loc. : Inbnd Sea of Seto; Amakusa; Toyama Bay.3 J 5. Gymnodoris okinawae BABA, 1936 Okinawa-kinuhada-umiushi (n.n.) Loc. : Okinawa (Riukiu) Is. (Ishigaki-jima). 6. Gymnodoris subflava BABA, 1949 Usuginu-umiushi Loc. : Sagami Bay ; Kii ; Inland Sea of Seto. -
Conspicuous Visual Signals Do Not Coevolve with Increased Body Size in Marine Sea Slugs
doi: 10.1111/jeb.12348 Conspicuous visual signals do not coevolve with increased body size in marine sea slugs K. L. CHENEY*, F. CORTESI*†,M.J.HOW‡,N.G.WILSON§,S.P.BLOMBERG*, A. E. WINTERS*, S. UMANZOR€ ¶ & N. J. MARSHALL‡ *School of Biological Sciences, The University of Queensland, St Lucia, Qld, Australia †Zoological Institute, The University of Basel, Basel, Switzerland ‡Queensland Brain Institute, The University of Queensland, St Lucia, Qld, Australia §The Australian Museum, Sydney, NSW, Australia ¶Department of Biology, New Mexico State University, Las Cruces, NM, USA Keywords: Abstract animal patterns; Many taxa use conspicuous colouration to attract mates, signal chemical aposematism; defences (aposematism) or for thermoregulation. Conspicuousness is a key image statistics; feature of aposematic signals, and experimental evidence suggests that pre- nudibranchs; dators avoid conspicuous prey more readily when they exhibit larger body spectral contrast; size and/or pattern elements. Aposematic prey species may therefore evolve visual signalling. a larger body size due to predatory selection pressures, or alternatively, larger prey species may be more likely to evolve aposematic colouration. Therefore, a positive correlation between conspicuousness and body size should exist. Here, we investigated whether there was a phylogenetic correlation between the conspicuousness of animal patterns and body size using an intriguing, understudied model system to examine questions on the evolution of animal signals, namely nudibranchs (opisthobranch mol- luscs). We also used new ways to compare animal patterns quantitatively with their background habitat in terms of intensity variance and spatial frequency power spectra. In studies of aposematism, conspicuousness is usually quantified using the spectral contrast of animal colour patches against its background; however, other components of visual signals, such as pattern, luminance and spectral sensitivities of potential observers, are largely ignored. -
Diversity of Norwegian Sea Slugs (Nudibranchia): New Species to Norwegian Coastal Waters and New Data on Distribution of Rare Species
Fauna norvegica 2013 Vol. 32: 45-52. ISSN: 1502-4873 Diversity of Norwegian sea slugs (Nudibranchia): new species to Norwegian coastal waters and new data on distribution of rare species Jussi Evertsen1 and Torkild Bakken1 Evertsen J, Bakken T. 2013. Diversity of Norwegian sea slugs (Nudibranchia): new species to Norwegian coastal waters and new data on distribution of rare species. Fauna norvegica 32: 45-52. A total of 5 nudibranch species are reported from the Norwegian coast for the first time (Doridoxa ingolfiana, Goniodoris castanea, Onchidoris sparsa, Eubranchus rupium and Proctonotus mucro- niferus). In addition 10 species that can be considered rare in Norwegian waters are presented with new information (Lophodoris danielsseni, Onchidoris depressa, Palio nothus, Tritonia griegi, Tritonia lineata, Hero formosa, Janolus cristatus, Cumanotus beaumonti, Berghia norvegica and Calma glau- coides), in some cases with considerable changes to their distribution. These new results present an update to our previous extensive investigation of the nudibranch fauna of the Norwegian coast from 2005, which now totals 87 species. An increase in several new species to the Norwegian fauna and new records of rare species, some with considerable updates, in relatively few years results mainly from sampling effort and contributions by specialists on samples from poorly sampled areas. doi: 10.5324/fn.v31i0.1576. Received: 2012-12-02. Accepted: 2012-12-20. Published on paper and online: 2013-02-13. Keywords: Nudibranchia, Gastropoda, taxonomy, biogeography 1. Museum of Natural History and Archaeology, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway Corresponding author: Jussi Evertsen E-mail: [email protected] IntRODUCTION the main aims. -
Australasian Nudibranchnews No.9 May 1999 Editors Notes Indications Are Readership Is Increasing
australasian nudibranchNEWS No.9 May 1999 Editors Notes Indications are readership is increasing. To understand how much I’m Chromodoris thompsoni asking readers to send me an email. Your participation, comments and feed- Rudman, 1983 back is appreciated. The information will assist in making decisions about dis- tribution and content. The “Nudibranch of the Month” featured on our website this month is Hexabranchus sanguineus. The whole nudibranch section will be updated by the end of the month. To assist anNEWS to provide up to date information would authors include me on their reprint mailing list or send details of the papers. Name Changes and Updates This column is to help keep up to date with mis-identifications or name changes. An updated (12th May 1999) errata for Neville Coleman’s 1989 Nudibranchs of the South Pacific is available upon request from the anNEWS editor. Hyselodoris nigrostriata (Eliot, 1904) is Hypselodoris zephyra Gosliner & © Wayne Ellis 1999 R. Johnson, 1999. Page 33C Nudibranchs of the South Pacific, Neville Coleman 1989 A small Australian chromodorid with Page 238C Nudibranchs and Sea Snails Indo Pacific Field Guide. an ovate body and a fairly broad mantle Helmut Debilius Edition’s One (1996) and Edition Two (1998). overlap. The mantle is pale pink with a blu- ish tinged background. Chromodoris loringi is Chromodoris thompsoni. The rhinophores are a translucent Page 34C Nudibranchs of the South Pacific. N. Coleman 1989. straw colour with cream dashes along the Page 32 Nudibranchs. Dr T.E. Thompson 1976 edges of the lamellae. The gills are coloured similiarly. In a recent paper in the Journal of Molluscan Studies, Valdes & Gosliner This species was described by Dr Bill have synonymised Miamira and Orodoris with Ceratosoma. -
E Urban Sanctuary Algae and Marine Invertebrates of Ricketts Point Marine Sanctuary
!e Urban Sanctuary Algae and Marine Invertebrates of Ricketts Point Marine Sanctuary Jessica Reeves & John Buckeridge Published by: Greypath Productions Marine Care Ricketts Point PO Box 7356, Beaumaris 3193 Copyright © 2012 Marine Care Ricketts Point !is work is copyright. Apart from any use permitted under the Copyright Act 1968, no part may be reproduced by any process without prior written permission of the publisher. Photographs remain copyright of the individual photographers listed. ISBN 978-0-9804483-5-1 Designed and typeset by Anthony Bright Edited by Alison Vaughan Printed by Hawker Brownlow Education Cheltenham, Victoria Cover photo: Rocky reef habitat at Ricketts Point Marine Sanctuary, David Reinhard Contents Introduction v Visiting the Sanctuary vii How to use this book viii Warning viii Habitat ix Depth x Distribution x Abundance xi Reference xi A note on nomenclature xii Acknowledgements xii Species descriptions 1 Algal key 116 Marine invertebrate key 116 Glossary 118 Further reading 120 Index 122 iii Figure 1: Ricketts Point Marine Sanctuary. !e intertidal zone rocky shore platform dominated by the brown alga Hormosira banksii. Photograph: John Buckeridge. iv Introduction Most Australians live near the sea – it is part of our national psyche. We exercise in it, explore it, relax by it, "sh in it – some even paint it – but most of us simply enjoy its changing modes and its fascinating beauty. Ricketts Point Marine Sanctuary comprises 115 hectares of protected marine environment, located o# Beaumaris in Melbourne’s southeast ("gs 1–2). !e sanctuary includes the coastal waters from Table Rock Point to Quiet Corner, from the high tide mark to approximately 400 metres o#shore. -
Phylum MOLLUSCA
285 MOLLUSCA: SOLENOGASTRES-POLYPLACOPHORA Phylum MOLLUSCA Class SOLENOGASTRES Family Lepidomeniidae NEMATOMENIA BANYULENSIS (Pruvot, 1891, p. 715, as Dondersia) Occasionally on Lafoea dumosa (R.A.T., S.P., E.J.A.): at 4 positions S.W. of Eddystone, 42-49 fm., on Lafoea dumosa (Crawshay, 1912, p. 368): Eddystone, 29 fm., 1920 (R.W.): 7, 3, 1 and 1 in 4 hauls N.E. of Eddystone, 1948 (V.F.) Breeding: gonads ripe in Aug. (R.A.T.) Family Neomeniidae NEOMENIA CARINATA Tullberg, 1875, p. 1 One specimen Rame-Eddystone Grounds, 29.12.49 (V.F.) Family Proneomeniidae PRONEOMENIA AGLAOPHENIAE Kovalevsky and Marion [Pruvot, 1891, p. 720] Common on Thecocarpus myriophyllum, generally coiled around the base of the stem of the hydroid (S.P., E.J.A.): at 4 positions S.W. of Eddystone, 43-49 fm. (Crawshay, 1912, p. 367): S. of Rame Head, 27 fm., 1920 (R.W.): N. of Eddystone, 29.3.33 (A.J.S.) Class POLYPLACOPHORA (=LORICATA) Family Lepidopleuridae LEPIDOPLEURUS ASELLUS (Gmelin) [Forbes and Hanley, 1849, II, p. 407, as Chiton; Matthews, 1953, p. 246] Abundant, 15-30 fm., especially on muddy gravel (S.P.): at 9 positions S.W. of Eddystone, 40-43 fm. (Crawshay, 1912, p. 368, as Craspedochilus onyx) SALCOMBE. Common in dredge material (Allen and Todd, 1900, p. 210) LEPIDOPLEURUS, CANCELLATUS (Sowerby) [Forbes and Hanley, 1849, II, p. 410, as Chiton; Matthews. 1953, p. 246] Wembury West Reef, three specimens at E.L.W.S.T. by J. Brady, 28.3.56 (G.M.S.) Family Lepidochitonidae TONICELLA RUBRA (L.) [Forbes and Hanley, 1849, II, p. -
Marine Science
Western Indian Ocean JOURNAL OF Marine Science Volume 18 | Issue 1 | Jan – Jun 2019 | ISSN: 0856-860X Chief Editor José Paula Western Indian Ocean JOURNAL OF Marine Science Chief Editor José Paula | Faculty of Sciences of University of Lisbon, Portugal Copy Editor Timothy Andrew Editorial Board Lena GIPPERTH Aviti MMOCHI Sweden Tanzania Serge ANDREFOUËT Johan GROENEVELD France Cosmas MUNGA South Africa Kenya Ranjeet BHAGOOLI Issufo HALO Mauritius South Africa/Mozambique Nyawira MUTHIGA Kenya Salomão BANDEIRA Christina HICKS Mozambique Australia/UK Brent NEWMAN Betsy Anne BEYMER-FARRIS Johnson KITHEKA South Africa USA/Norway Kenya Jan ROBINSON Jared BOSIRE Kassim KULINDWA Seycheles Kenya Tanzania Sérgio ROSENDO Atanásio BRITO Thierry LAVITRA Portugal Mozambique Madagascar Louis CELLIERS Blandina LUGENDO Melita SAMOILYS Kenya South Africa Tanzania Pascale CHABANET Joseph MAINA Max TROELL France Australia Sweden Published biannually Aims and scope: The Western Indian Ocean Journal of Marine Science provides an avenue for the wide dissem- ination of high quality research generated in the Western Indian Ocean (WIO) region, in particular on the sustainable use of coastal and marine resources. This is central to the goal of supporting and promoting sustainable coastal development in the region, as well as contributing to the global base of marine science. The journal publishes original research articles dealing with all aspects of marine science and coastal manage- ment. Topics include, but are not limited to: theoretical studies, oceanography, marine biology and ecology, fisheries, recovery and restoration processes, legal and institutional frameworks, and interactions/relationships between humans and the coastal and marine environment. In addition, Western Indian Ocean Journal of Marine Science features state-of-the-art review articles and short communications. -
South Carolina Department of Natural Resources
FOREWORD Abundant fish and wildlife, unbroken coastal vistas, miles of scenic rivers, swamps and mountains open to exploration, and well-tended forests and fields…these resources enhance the quality of life that makes South Carolina a place people want to call home. We know our state’s natural resources are a primary reason that individuals and businesses choose to locate here. They are drawn to the high quality natural resources that South Carolinians love and appreciate. The quality of our state’s natural resources is no accident. It is the result of hard work and sound stewardship on the part of many citizens and agencies. The 20th century brought many changes to South Carolina; some of these changes had devastating results to the land. However, people rose to the challenge of restoring our resources. Over the past several decades, deer, wood duck and wild turkey populations have been restored, striped bass populations have recovered, the bald eagle has returned and more than half a million acres of wildlife habitat has been conserved. We in South Carolina are particularly proud of our accomplishments as we prepare to celebrate, in 2006, the 100th anniversary of game and fish law enforcement and management by the state of South Carolina. Since its inception, the South Carolina Department of Natural Resources (SCDNR) has undergone several reorganizations and name changes; however, more has changed in this state than the department’s name. According to the US Census Bureau, the South Carolina’s population has almost doubled since 1950 and the majority of our citizens now live in urban areas. -
ZM75-01 | Yonow 11-01-2007 15:03 Page 1
ZM75-01 | yonow 11-01-2007 15:03 Page 1 Results of the Rumphius Biohistorical Expedition to Ambon (1990) Part 11. Doridacea of the families Chromodorididae and Hexa- branchidae (Mollusca, Gastropoda, Opisthobranchia, Nudibranchia), including additional Moluccan material N. Yonow Yonow, N. Results of the Rumphius Biohistorical Expedition to Ambon (1990). Part 11. Doridacea of the families Chromodorididae and Hexabranchidae (Mollusca, Gastropoda, Opisthobranchia, Nudibran- chia), including additional Moluccan material. Zool. Med. Leiden 75 (1), 24.xii.2001: 1-50, figs 1-12, colour plts 1-5— ISSN 0024-0672. Nathalie Yonow, School of Biological Sciences, University of Wales, Singleton Park, Swansea SA2 8PP, Wales, U.K. (e-mail: [email protected]). Key words: Indonesia; Ambon; Chromodorididae; Hexabranchidae; Nudibranchia; Opisthobranchia; Gastropoda; systematics; taxonomy. Twenty-one species belonging to the family Chromodorididae and one species of Hexabranchus (Hexa- branchidae) are present in the 1990 Rumphius Biohistorical Expedition (RBE) collection. The 1996 Fauna Malesiana Marine Maluku Expedition (Mal) collected 43 lots of nudibranchs, mostly chromodorids: 17 species were identified, six of which were not represented in the RBE collection. A total of 35 chro- modorid species, belonging to nine genera, are described from Ambon and nearby localities. Four species are new to science, and seventeen species are recorded from Indonesian waters for the first time. Brief descriptions are given for the species which are well known, highlighting significant features, dif- ferentiating characters from similar species, and allowing recognition. A number of species are less well known and described and figured in more detail. The name Chromodoris marindica nom. nov. is proposed for Chromodoris reticulata sensu Eliot, 1904, and Farran, 1905 (not C. -
Anatomical Data on a Rare <I>Hypselodoris Picta</I> (Schultz, 1836) (Gastropoda, Doridacea) from the Coast of Brazil
BULLETIN OF MARINE SCIENCE, 63(1): 133–141, 1998 ANATOMICAL DATA ON A RARE HYPSELODORIS PICTA (SCHULTZ, 1836) (GASTROPODA, DORIDACEA) FROM THE COAST OF BRAZIL WITH DESCRIPTION OF A NEW SUBSPECIES J. S. Troncoso, F. J. Garcia and V. Urgorri ABSTRACT A rare specimen of the chromodorid doridacean Hypselodoris picta (Schultz, 1836), is described from the southeast coast of Brazil. The coloration of this specimen differs from the typical pattern of the species, mainly due to the presence of a white marginal notal band and dark blue gills without yellow lines on their rachis, as is typical in H. picta. Along with this, the morphology of the reproductive system and the radular teeth of this specimen differs from those of other H. picta. The results of a comparative analysis of Hypselodoris picta is presented in this paper, with description of a new subspecies. As was stated by Gosliner (1990), the large species of Atlantic Hypselodoris Stimpson,1855, have been the subject of some taxonomical confusion. Ortea, et al. (1996) studied many specimens of Hypselodoris from diferent Atlantic and Mediterranean re- gions which allowed them to conclude that H. webbi (d’Orbigny, 1839) and H. valenciennesi (Cantraine, 1841) have to be considered as synonyms of H. picta (Schultz, 1836). H. picta is a known amphi-Atlantic species from Florida, Puerto Rico and Brazil (Marcus, 1977, cited as H. sycilla), Azores islands (Gosliner, 1990), Canary Islands (Bouchet and Ortea, 1980), the Atlantic coasts of France and Spain (Bouchet and Ortea, 1980; Cervera, et al. 1988) and the Mediterranean Sea (Thompson and Turner, 1983).