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Pelagic Sargassum Community Change Over a 40-Year Period: Temporal and Spatial Variability
Mar Biol (2014) 161:2735–2751 DOI 10.1007/s00227-014-2539-y ORIGINAL PAPER Pelagic Sargassum community change over a 40-year period: temporal and spatial variability C. L. Huffard · S. von Thun · A. D. Sherman · K. Sealey · K. L. Smith Jr. Received: 20 May 2014 / Accepted: 3 September 2014 / Published online: 14 September 2014 © The Author(s) 2014. This article is published with open access at Springerlink.com Abstract Pelagic forms of the brown algae (Phaeo- ranging across the Sargasso Sea, Gulf Stream, and south phyceae) Sargassum spp. and their conspicuous rafts are of the subtropical convergence zone. Recent samples also defining characteristics of the Sargasso Sea in the western recorded low coverage by sessile epibionts, both calcifying North Atlantic. Given rising temperatures and acidity in forms and hydroids. The diversity and species composi- the surface ocean, we hypothesized that macrofauna asso- tion of macrofauna communities associated with Sargas- ciated with Sargassum in the Sargasso Sea have changed sum might be inherently unstable. While several biological with respect to species composition, diversity, evenness, and oceanographic factors might have contributed to these and sessile epibiota coverage since studies were con- observations, including a decline in pH, increase in sum- ducted 40 years ago. Sargassum communities were sam- mer temperatures, and changes in the abundance and distri- pled along a transect through the Sargasso Sea in 2011 and bution of Sargassum seaweed in the area, it is not currently 2012 and compared to samples collected in the Sargasso possible to attribute direct causal links. Sea, Gulf Stream, and south of the subtropical conver- gence zone from 1966 to 1975. -
A New Variety of Pelagic Janthinid-Gastropoda from Libyan Coast
International Journal of Scientific & Engineering Research, Volume 7, Issue 3, March-2016 ISSN 2229-5518 1314 A New Variety of Pelagic Janthinid-Gastropoda from Libyan Coast Ahmed M. Muftah1 and Belkasim Khameiss2 1University of Benghazi, Faculty of Science, Department of Earth Sciences, Benghazi, Libya. 2Department of Geological Sciences Ball State University Fine Arts Building (AR), room 117 Muncie, IN 47306. [email protected] Abstract This is the first record of the pelagic purple janthinid gastropoda from Libyan East coast, it is introduced herein as a new variety Janthina janthina var. minuta. It was found in two spots along Tolmeitha and Susa beaches. This occurrence confirms its Mediterranean affinity. The rarity of these snails along the Libyan coast is indicative to their pelagic mode of life which can be explained by the presence of the air bubbles for floating. However, the ink-like secretion is responsible to shell coloration and is used as a defense mechanism similar to that of Octopus and Sepia cephalopods. Introduction This study based on the collected sea shells from the Northeast coast of Libya in Cyrenaica region (Fig. 1). There are few studies on marine mollusks of Libya. So far the most important manual is that of Abdulsamad et al., (in press) on sea shells of Bengahzi beaches, it contains 103 color photographsIJSER accompanied with text in both Arabic and English. Others are unpublished student report. A study on Land snails from Northeast Libya in particular Cyrenaica, however, is published recently by Muftah and Al-Tarbagiah, (2013). These samples are measured by Caliper. The collected specimens are deposited in the paleontological collections of the Department of the Earth Sciences, in Benghazi University. -
2008-2009 Chromodoris Kuniei Ransoni
Fromia millepora Eriphia scrabricola Chloeia sp. Lybia n. sp. Florida MuseuM of Natural History Elysia pusilla Annual Report 2008-2009 Chromodoris kuniei ransoni Trapezia lutea Paraplanocera n. sp. Pilodius flavus Fromia sp. Chromodoris tinctoria Thyrolambrus efflorescens Dolabrifera dolabrifera Aniculus aniculus “The Florida Museum of Natural History is Florida’s state museum Florida Museum of Natural History Marketing and Public Relations of natural history, dedicated to understanding, preserving and PO Box 112710 interpreting biological diversity and cultural heritage.” Gainesville, FL 32611-2710 Editor: Paul Ramey, APR [email protected] Contributing Editors: Elise LeCompte Sharon Thomas Photography: Dan Brumbaugh Jeff Gage Jim Maragos Gustav Paulay Mary Warrick Eric Zamora Design: Leah Parchinski Printing: StorterChilds Printing Co. This Annual Report features images from the Florida Museum of Natural History Malacology Collection. Malacology is devoted to the study of mollusks, the second largest phylum of animals in terms of described species. About 100,000 species of mollusks are known, and the Florida Museum holds more than 30,000 species among 400,000 lots of specimens. More than 300,000 lots are now databased and accessible online (flmnh.ufl.edu/ malacology/collections.htm). The collection is among the five largest in the U.S., and one of the most rapidly growing. It is the second largest mollusk collection worldwide in online accessibility. (left) Marine Malacology Curator Gustav Paulay surveys the biodiversity of Kiritimati Island in the Pacific. Since Paulay’s hire in 2000, the Museum also has added an increasing number of non- molluscan marine invertebrates to its collection. A Message From the Director In December 2008, the Florida Museum received the most significant gift in its long history from its most generous benefactors. -
Downloaded from SRA)
bioRxiv preprint doi: https://doi.org/10.1101/457770; this version posted October 31, 2018. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC 4.0 International license. 1 Deep gastropod relationships resolved 1 2 2 Tauana Junqueira Cunha and Gonzalo Giribet Museum of Comparative Zoology, Department of Organismic and Evolutionary Biology Harvard University, 26 Oxford Street, Cambridge, MA 02138, USA 1Corresponding author: [email protected] | orcid.org/0000-0002-8493-2117 [email protected] | orcid.org/0000-0002-5467-8429 3 4 Abstract 5 Gastropod mollusks are arguably the most diverse and abundant animals in the oceans, and are 6 successful colonizers of terrestrial and freshwater environments. Here we resolve deep relationships between 7 the five major gastropod lineages - Caenogastropoda, Heterobranchia, Neritimorpha, Patellogastropoda 8 and Vetigastropoda - with highly congruent and supported phylogenomic analyses. We expand taxon 9 sampling for underrepresented lineages with new transcriptomes, and conduct analyses accounting for the 10 most pervasive sources of systematic errors in large datasets, namely compositional heterogeneity, site 11 heterogeneity, heterotachy, variation in evolutionary rates among genes, matrix completeness and gene 12 tree conflict. We find that vetigastropods and patellogastropods are sister taxa, and that neritimorphs 13 are the sister group to caenogastropods and heterobranchs. With this topology, we reject the traditional 14 Archaeogastropoda, which united neritimorphs, vetigastropods and patellogastropods, and is still used in 15 the organization of collections of many natural history museums. -
Channel Island Marine Molluscs
Channel Island Marine Molluscs An Illustrated Guide to the Seashells of Jersey, Guernsey, Alderney, Sark and Herm Paul Chambers Channel Island Marine Molluscs - An Illustrated Guide to the Seashells of Jersey, Guernsey, Alderney, Sark and Herm - First published in Great Britain in 2008 by Charonia Media www.charonia.co.uk [email protected] Dedicated to the memory of John Perry © Paul Chambers, 2008 The author asserts his moral right to be identified as the Author of this work in accordance with the Copyright, Designs and Patents Act, 1988. All rights reserved. No part of this book may be reproduced or transmitted in any form or by any means, electronic or mechanical including photocopying, recording or by any information storage and retrieval system, without permission from the Publisher. Typeset by the Author. Printed and bound by Lightning Source UK Ltd. ISBN 978 0 9560655 0 6 Contents Introduction 5 1 - The Channel Islands 7 Marine Ecology 8 2 - A Brief History of Channel Island Conchology 13 3 - Channel Island Seas Shells: Some Observations 19 Diversity 19 Channel Island Species 20 Chronological Observations 27 Channel Island First Records 33 Problematic Records 34 4 - Collection, Preservation and Identification Techniques 37 5 - A List of Species 41 Taxonomy 41 Scientific Name 42 Synonyms 42 Descriptions and Illustrations 43 Habitat 44 Distribution of Species 44 Reports of Individual Species 45 List of Abbreviations 47 PHYLUM MOLLUSCA 49 CLASS CAUDOFOVEATA 50 CLASS SOLENOGASTRES 50 ORDER NEOMENIAMORPHA 50 CLASS MONOPLACOPHORA -
The Indole Pigments of Mollusca
Annls Soc. r. zool. Belg. - T. 119 (1989) - fase. 2 - pp. 181-197 - Bruxelles 1989 (Manuscript received on 31 J uly 1989) THE INDOLE PIGMENTS OF MOLLUSCA by ANDRÉ VERHECKEN Recent Invertebrates Section Koninklijk Belgisch Instituut voor Natuurwetenschappen Vautierstraat 29, B-1040 Brussels SUMMARY This study discusses occurrence and biosynthesis of melanins and indigoids, pigments with indole structure produced by mollusca. Indigotin and 6,6'-dibromoindigotin (DBI), constituents of<< mollusc purple •> , are treated in some detail. Their colourless precursors in the organism are presumed to be of dietary origin. The hypothesis is formulated that for mation of DBI is due to a detoxification mechanism ; it is suggested that purple-producing species have developed it into an enzymatically controlled defensive system against large predators. This first reaction step is then foliowed by spontaneously proceeding reactions invalving oxygen and, for DBI, light, leading to the formation of the coloured pigment, which seems to be of no further use to the anima!. Experiments with purple from three Mediterranean species are reported. Keywords : melanin, mollusc purple, indigotin, biosynthesis. RÉSUMÉ Cette étude discute l'occurence et la biosynthèse des mélanines et indigoides, pigments à structure indolique produits par des mollusques. Les indigoides indigotine et 6,6' -dibro meindigotine (DBI), présents dans la <<.pourpre des mollusques •>, sont traités en plus de détail. Les précurseurs incolores présents dans !'organisme sont supposés être d 'origine dié tique. L 'hypothèse est formulée que la formation du DBI est due à un méchanisme de détoxification, et que les espèces produisant la pourpre ont développé ce méchanisme en un système enzymatiquement contrölé de défense contre de grands prédateurs. -
The Violet Snail Janthina Janthina (Linnaeus, 1578) (Mollusca: Gastropoda) Is Around the Croatian Adriatic Island of Lokrum Again
Nat. Croat. Vol. 25(2), 2016 327 NAT. CROAT. VOL. 25 No 2 327–330 ZAGREB December 31, 2016 short communication / kratko priopćenje DOI: 10.20302/NC.2016.25.29 THE VioLET SNAIL JANTHINA JANTHINA (LinnAEUS, 1578) (MOLLUSCA: GASTROPodA) IS AROUnd THE CROAtiAN AdRIAtic ISLAnd OF LoKRUM AGAin Marija Crnčević1 & Ana Bratoš Cetinić2 1Public Institution Lokrum Reserve, Od Bosanke 4, HR-20000 Dubrovnik, Croatia 2University of Dubrovnik, Department of Aquaculture, Ćira Carića 4, HR-20000 Dubrovnik, Croatia Crnčević, M. & Bratoš Cetinić, A.: The violet snail Janthina janthina (Linnaeus, 1578) (Mol- lusca: Gastropoda) is around the Croatian Adriatic island of Lokrum again. Nat. Croat., Vol. 25, No. 2., 327–330, Zagreb, 2016. A specimen of the violet snail Janthina janthina (Linnaeus, 1578) was collected in Portoč Bay, Lokrum Island, in May 2016, during the beach cleanup and removing of marine debris drift arising from strong winds. The first record of the raft snail J. janthina along the Eastern Adriatic coast was also noticed in the area of Lokrum Island in the middle of the 19th century. Key words: Janthina janthina, Adriatic Sea, Lokrum, new record Crnčević, M. & Bratoš Cetinić, A.: Ljubičasti splavar Janthina janthina (Linnaeus, 1578) (Mol- lusca: Gastropoda) opet plovi u Jadranu oko Lokruma. Nat. Croat., Vol. 25, No. 2., 327–330, Zagreb, 2016. Kućica ljubičastog splavara Janthina janthina (Linnaeus, 1578) prikupljena je u uvali Portoč na otoku Lokrumu u svibnju 2016. tijekom uklanjanja otpada naplavljenog jakim vjetrom. Prvi nalaz pužaJ. jan- thina na istočnojadranskoj obali zabilježen je također u području otoka Lokruma sredinom 19. stoljeća. Ključne riječi: Janthina janthina, Jadransko more, Lokrum, novi nalaz Janthinids are holoplanktonic gastropods that live in the surface layer of the open sea. -
ISSN: 2230-9926 International Journal of Development Research
Available online at http://www.journalijdr.com ISSN: 2230-9926 International Journal of Development Research Vol. 09, Issue, 09, pp. 29891-29897, September, 2019 RESEARCH ARTICLE OPEN ACCESS CONTRIBUTION TO THE STUDY OF THE GREEN TURTLE (CHELONIA MYDAS) DIET IN THE SOUTH ATLANTIC, NORTHEAST BRAZIL *1Midiã da Silva Rodrigues, 2Dra. Adilma de Lourdes Montenegro Cocentino, 3Cristina Farias da Fonseca, 4Dr. Geraldo Jorge Barbosa de Moura, 5Dr. Múcio Luiz Banja Fernandes, 6Thaysa Mariana Bezerra de Melo, 7Emily Pereira de Queiroz and 8Arley Cândido da Silva 1Federal Rural University of Pernambuco, Recife, Pernambuco, Brazil 2Federal University of Pernambuco – Macroalgae Laboratory of the Oceanographic Museum 3Federal Rural University of Pernambuco – Parasitology Laboratory 4Federal Rural University of Pernambuco - Laboratory of Herpetological and Paleoherpetological Studies of Federal Rural University of Pernambuco 5University of Pernambuco – Laboratory of Environmental Studies 6Federal University of Pernambuco 7Federal Rural University of Pernambuco 8President ONG Ecoassociados ARTICLE INFO ABSTRACT Article History: This work presents information about the digestive tract contents of the green turtles Received 20th June, 2019 (Chelonia mydas) on the southern coast of Pernambuco, Northeast Brazil. Between Received in revised form 13th July, 2019 November 2016 and October 2018, the gastrointestinal tract contents were collected Accepted 17th August, 2019 from 44 stranded dead individuals. The diet consisted mainly of red algae (65.90%), Published online 30th September, 2019 especially the species Pterocladiella beachiae, Gelidium lineare (52.72%) and Gelidiella acerosa (47.72%). Some animal items were also found, such as the soft coral Key Words: Palythoa caribaeroum (first record for this region), the planktonic mollusks Jhantina Feeding. Trophic Ecology. -
Open Oceans Book 1.Indb
The Open Ocean around Bermuda (Second Edition) Project Nature Field Study Guide Sponsored by The Bermuda Paint Co. Ltd. The Open Ocean around Bermuda Ninth in the series of Project Nature Guides published by the Bermuda Zoological Society in collaboration with the Bermuda Aquarium, Museum & Zoo Second Edition Published September 2005 Copyright © 2005 Bermuda Zoological Society Details of other titles available in the Project Nature series are: Rocky Coasts. Martin L. H. Thomas First Edition (The Rocky Coast) April 1993 Second Edition May 2007. 100 pages. ISBN: 978-1-897403-03-7 Sandy Coasts, Martin L. H. Thomas First Edition (The Sandy Shore) November 1994 Second Edition May 2008. 102 pages. ISBN: 978-1-897403-49-5 The Bermuda Forests. By BZS Volunteers. First Edition January 2001. Second Edition March 2002. Third Edition December 2005. 114 pages. ISBN: 1-894916-26-3 Bermuda’s Wetlands. By Martin L. H. Thomas. First Edition January 2001. Second Edition March 2002. Third Edition July 2005 Fourth Edition December 2005. 186 pages. ISBN: 1-894916-62-X Oceanic Island Ecology of Bermuda. By Martin L. H. Thomas. First Edition February 2002. Second Edition September 2004. Third Edition September 2005. 88 pages. ISBN: 1-894916-63-8 Coral Reefs of Bermuda. By Martin L. H. Thomas. First Edition May 2002. Second Edition September 2005. 80 pages. ISBN: 1-894916-67-0 Sheltered Bays and Seagrass Beds of Bermuda. By Martin L. H. Thomas. First Edition August 2002. Second Edition September 2005. 88 pages. ISBN: 1-894916-66-2 The Ecology of Harrington Sound, Bermuda. By Martin L. -
RESEARCH ARTICLE- First Record of Janthina Globosa Swainson
NESciences, 2017, 2 (1): 6-10 -RESEARCH ARTICLE- First Record of Janthina globosa Swainson, 1822 (Mollusca, Gastropoda) and Prostheceraeus giesbrechtii Lang, 1884 (Platyhelminthes) in the Gulf of Antalya Serkan Teker*, Mehmet Gökoğlu, David Julian 1Fisheries Faculty, Akdeniz University. 07058 Antalya, Turkey. Abstract During the survey study, a holo-planktonic gastropod species Janthina globosa Swainson, 1822 was captured for the first time during trawl shootings at 20-30 m depths from the Gulf of Antalya on 24th June 2015. On 15th July 2015, during the underwater diving, a colourful flatworm Prostheceraeus giesbrechtii was observed at the hard substratum depths of 5-7 m near the old Harbour (Antalya) (36o 35’ 5,15’’N; 30o 42’ 1,45’’E). The flatworm was taken to laboratory and photographed. Its length was approximately 2-3 cm and 1-1.5 mm thick. This species is the first record for the Gulf of Antalya, the North-eastern Mediterranean part of Turkey. Keywords: Prostheceraeus giesbrechtii, Janthina globosa, Gastropoda, pink flatworm, Gulf of Antalya Article history: Received 14 January 2017, Accepted 07 February 2017, Available online 08 February 2017 Introduction Marine gastropod species belonging to the family Janthinidae generally show wide range of distribution at Ecuador region (Mienis, 1994). Janthina is a part of the macrozooplankton in the world's oceans. According to Mienis and Spanier (1987) four species of Janthina are present in the Mediterranean Sea: Janthina janthina (Linnaeus, 1758), J. exigua (Lamarck, 1816), J. globosa (Swainson, 1822) and J. pallida (Thompson, 1841). These species live as pelagic on the surfaces of floating objects by air bubbles coated mucus. -
Proceedings of the United States National Museum
REPORT ON A COLLECTION OF SHELLS FROM PERU, WITH A SUABIARY OF THE LITTORAL MARINE MOLLUSCA OF THE PERLWIAN ZOOLOGICAL PROVINCE. By William Healey Dall, Curator, Division of MoUusks, U. S. National Museum,. INTRODUCTION. LTnder the auspices of the Ministerio cle Fomento of Peru, Mr. R. E. Coker was engaged in making studies and collections of animals of the Peruvian coast with the intention of contributing to the knowl- edge of the aquatic resources of the country. In the course of this work numerous economic notes were made in relation to the animals obtained. On the portion of the collection consisting of Mollusca, the authori- ties of Peru, through the intervention of Mr. Coker, have requested the writer to prepare a report. It was found on looking into the matter that no systematic list of the shore mollusks of the Peruvian province had been published for more than half a century. It was thought that the value of this report to the naturalists of Peru and elsewhere would be consider- ably enhanced, after discussing the collection in question, if to it was added a list of the species reported as occurring on the shores of the Peruvian zoological province. The present report therefore contains both, together with illustrations of the chief economic mollusks of the Peruvian coast and islands contained in the collection. It should be said that specimens of this collection have been returned with identifications, to the Peruvian authorities, and another series retained in the U. S. National Museum for reference. The notes in small type were prepared by Mr. -
Spineless: Status and Trends of the World's Invertebrates
The Zoological Society of London (ZSL) The Zoological Society of London (ZSL) is a charity founded in 1826, is a world renowned centre of excellence for conservation science and applied conservation. ZSL’s mission is to promote and achieve the worldwide conservation of animals Spineless and their habitats. This is realised by carrying out field conservation and research in over 50 countries across the globe and through education and awareness at our two zoos, ZSL London Zoo Status and trends of the and ZSL Whipsnade Zoo, inspiring people to take conservation action. world’s invertebrates We strive to achieve our mission by: Conducting world-leading conservation science Implementing effective field conservation projects globally Edited by Ben Collen, Monika Böhm, Rachael Kemp and Jonathan E. M. Baillie Providing decision-makers with the best conservation advice Building conservation capacity and inspiring people to connect with the natural world Spineless www.zsl.org invertebrates of the world’s Status and trends Cover photo: The praying mantis (Mantodea) is found across southern Europe is one of the most well known species of Mantids. Like all species in the group, Mantis religiosa are formidable predators, able to turn their heads 180 degrees. With two large compound eyes and three other simple eyes located between them, their deceptive camouflage aids them in ambushing and stalking prey. Spineless Status and trends of the world’s invertebrates Edited by Ben Collen, Monika Böhm, Rachael Kemp and Jonathan E. M. Baillie Disclaimer The designation of the geographic entities in this report, and the presentation of the material, do not imply the expressions of any opinion on the part of ZSL, IUCN or Wildscreen concerning the legal status of any country, territory, area, or its authorities, or concerning the delimitation of its frontiers or boundaries.