C:\Documents and Settings\Marcym

Total Page:16

File Type:pdf, Size:1020Kb

C:\Documents and Settings\Marcym Invertebrate Reproduction and Development, 52:1–2 (2008) 31–40 31 Balaban, Philadelphia/Rehovot 0792-4259/08/$05.00 © 2008 Balaban Reproductive cycle of the rissoid Alvania mediolittoralis Gofas, 1989 (Mollusca, Gastropoda) at São Miguel Island (Azores, Portugal) SÉRGIO P. ÁVILA1,2,3*, P.J. MELO1,4, ANA LIMA1, ANDRÉ AMARAL1,4, A.M DE FRIAS MARTINS1,3,5 and ARMINDO RODRIGUES1,4 1Departamento de Biologia, Universidade dos Açores, 9501-801 Ponta Delgada, Azores, Portugal 2Centro do IMAR da Universidade dos Açores, 9901-862 Horta, Azores, Portugal 3MPB–Marine Palaeobiogeography Working Group of the University of the Azores, Rua da Mãe de Deus, 9501-801 Ponta Delgada, Azores, Portugal Tel. +351 296 650 101/2; Fax: +351 296 650 100; email: [email protected] 4CIRN–Centro de Investigação de Recursos Naturais, Universidade dos Açores, 9501-801 Ponta Delgada, Azores, Portugal 5CIBIO-Pólo Açores–Centro de Investigação em Biodiversidade e Recursos Genéticos, and Departamento de Biologia, Universidade dos Açores, 9501-801 Ponta Delgada, Azores, Portugal Received 5 December 2007; Accepted 24 October 2008 Summary The reproductive cycle of an Alvania species is studied for first time. Alvania mediolittoralis Gofas, 1989 is an endemic Azorean rissoid very common in sheltered places and particularly abundant among the algal turf covering the lower half of the intertidal and upper subtidal rocky shores. This species reproduces throughout the year, with two spawning peaks, one during early spring and the other in late autumn. In an attempt to relate to current paleobiogeographical studies, inferences are made regarding the ecological advantages of species with a continuous type of reproduction, on Azorean shores, during glacial episodes. Key words: Alvania, Rissoidae, reproductive cycle, gametogenesis, Pleistocene Introduction malacofauna in the Mediterranean and Atlantic shores The Rissoidae are a family of small caenogastropod of Europe, the Madeira archipelago (Watson, 1873), the molluscs with a worldwide geographical distribution. Canary Islands (Moolenbeek and Faber, 1987a, 1987b, Shells are usually <5 mm long sometimes with elaborate 1987c; Moolenbeek and Hoenselaar, 1989, 1998) and sculpturing on both the protoconch and teleoconch also along west African shores (Gofas, 1999). They are (Ávila, 2005). Rissoidae are dioecious. Males have a the most represented family in the Azores Islands simple penis, located behind the right eye, females are (Gofas, 1990; Ávila, 2000b; Ávila, 2005), with 24 monaulic. The majority of species are marine, although species belonging to nine genera (Alvania, Botryphallus, some occur in brackish waters, and they are present in Cingula, Crisilla, Manzonia, Pusillina, Onoba, Rissoa the fossil record from the Upper Jurassic of Europe and Setia) (Moolenbeek and Faber, 1987b; Gofas, 1990; (Chenu, 1859; Ponder, 1985, 1988). Knudsen, 1995; Hoenselaar and Goud, 1998; Ávila, Rissoidae are a principal components of the littoral 2000a; Ávila, 2005). *Corresponding author. 32 S.P. Ávila et al. / IRD 52 (2008) 31–40 The Azorean rissoids are one of the best studied (Azores) (Fig. 1). According to Morton et al. (1998), mollusc families in the region, from MacAndrew (1856) this biologically diverse site (in both species number and Drouët (1858) to date. Ávila (2005) summarised all and density) is representative of the rocky shore the published information about this family in the environment in the Azores and has been studied archipelago of the Azores, including ecological, taxo- extensively (Hawkins et al., 1990; Costa, 1994; Britton, nomical, palaeontological, and geographical distri- 1995; Botelho and Costa, 2000). It is particularly bution data on all the 24 shallow water species. suitable for the collection of intertidal species, due to its Alvania mediolittoralis Gofas, 1989 is a small large and shallow rocky platform, which has a gentle mollusc (usually with a shell about 2.7 mm long and slope towards the sea. The bottom of this relatively 1.5 mm wide), with non-planktotrophic larval develop- protected bay is covered by small boulders, which rest ment, which inhabits the intertidal and upper subtidal on the underlying lava flow. Most of the boulders algal covered rocky shores (Martins, 2004; Ávila, possess a dense algal mat that makes the perfect habitat 2005). It is common and may be present in large for micro-molluscs such as Alvania mediolittoralis. numbers in sheltered places, especially under boulders (Ávila, 2000b). It is especially abundant in the lower half of the intertidal zone, among the intertidal algal turf Sampling and morphometry (Ávila et al., 2005) reaching a maximum density of During low tide, several rocks were collected, and 54,000 individuals/m2 in the Ilhéu de Vila Franca, São the upper and lower surfaces brushed inside a plastic Miguel Island (Bullock, 1995). It is commonly asso- container filled with seawater. The residue was then ciated with other microgastropods such as Omalogyra sorted for living individuals. Water temperature was atomus (Philippi, 1841), Pisinna glabrata (Megerle von recorded on each sampling date. The largest twenty Mühlfeld, 1824) and Skeneopsis planorbis (Fabricius individuals of A. mediolittoralis were sampled once per O., 1780), and the bivalve Lasaea adansoni (Gmelin, month, from February 2003 to January 2004. In the 1791) (Ávila et al., 2005). laboratory, quantitative measurements of maximum Although reported from Madeira by Hoenselaar and shell length (SL) and shell width (SW) were recorded Goud (1998) (CANCAP expeditions, Sta.1.D48, 0-22 using a Wild M3 Stereo Microscope with a camera m/1 shell; Sta.1.K14, in the littoral/1 and Sta. 1.K16, in lucida. The length/width ratio was also calculated the littoral/2), we think these reports describe specimens (SL/SW). that reached the Madeira archipelago but were not able to establish a viable reproductive population. Recent collecting at Madeira and Porto Santo by Ávila (unpub- Gonadal maturation state lished data) at appropriate intertidal and sublittoral After measurement, specimens were fixed in Bouin’s habitats where A. mediolittoralis should occur did not solution in seawater for 15 h, dehydrated in ethanol and yield a single specimen, thus we believe this species to embedded in paraffin wax. Finally, 7 µm thick serial be endemic to the Azores archipelago. It was reported transversal sections cut with a microtome were stained for the Pleistocene of the Azores (Prainha and with Mayer’s haemalum and eosin (Martoja and Lagoinhas, Santa Maria Island) by Ávila et al. (2002), in Martoja-Pierson, 1970). Observations were made on the outcrops dated from the Marine Oxygen Isotope Sub- histological sections of the gonads of the specimens stage 5e (MISS 5e) high sea level interval (about 130– collected in March, May, July, September and 120 ka) (Ávila et al., 2008a). Dispersal events November 2003, and January 2004, and the relative (successful or not) are usually rare events. From all the volumetric density of gametes estimated according to endemic Azorean rissoids, A. mediolittoralis is the only the M168 Weibel Multipurpose Test System (Weibel, species of which shells are reported from sites other than 1979). the Azores archipelago (in the present case, the Madeira Three stages of development were distinguished archipelago, about 900 km apart from the Azores). This during oogenesis (Hill and Bowen, 1976; Rodrigues and provides indirect evidence that speciation occurred long Medeiros, 2005; Cúrdia et al., 2005) (Fig. 2): (1) pre- ago, thus surviving to several glacial-interglacial cycles, vitellogenic oocytes (PV)—small, rounded cells, with and making it a particularly interesting species for study. strong basophilic cytoplasm; (2) vitellogenic oocytes (V)—larger than the previous stage, irregular in shape, Materials and Methods sometimes with multiple visible nucleoles, and lightly basophilic cytoplasm with slight granulations; (3) ma- Study area turing oocytes (M)—larger than the vitellogenic Caloura (Lat 37º42N30ON, Long 24º30N30OW) is oocytes, round in shape with eosinophilic and granular located on the southern shores of São Miguel Island cytoplasm. S.P. Ávila et al. / IRD 52 (2008) 31–40 33 Fig. 1. Azores archipelago and São Miguel Island, with location of the sampling site, Caloura. Fig. 2. Histological section of a Alvania mediolittoralis female gonad. A. General view; B, C. Highlight of the oogenic stages. Arrows, germinal layer; arrowheads, previtellogenic oocytes; dgt, digestive tubule; n, nucleus; mo, maturing oocytes; vo, vitellogenic oocytes; yg, yolk granules. Scale bars: 50 µm. 34 S.P. Ávila et al. / IRD 52 (2008) 31–40 Fig. 3. Histological section of a Alvania mediolittoralis male gonad. A. General view. B. Highlight of the spermatogenic stages. Arrows, germinal layer; dgt, digestive tubule; sc, spermatocytes; sg, spermatogonia; st, spermatides; sz, spermatozoa; t, testis. Scale bars: 50 µm. Four stages of spermatogenesis were identified formed into a lower triangular resemblance matrix using (Griffond et al., 1991; Rodrigues and Medeiros, 2005; the Euclidean distance similarity index, and a dendro- Cúrdia et al., 2005) (Fig. 3): (1) spermatogonia — gram was constructed with the UPGMA method. A total medium-sized cells, with a large nucleus in relation to of 117 specimens of A. mediolittoralis were analysed the quantity of cytoplasm, always located near the acinar (71 females and 46 males). epithelium; (2) spermatocytes — larger than spermato- The mean gonad index (MGI) (Brown, 1982) was gonia with basophilic
Recommended publications
  • WMSDB - Worldwide Mollusc Species Data Base
    WMSDB - Worldwide Mollusc Species Data Base Family: TURBINIDAE Author: Claudio Galli - [email protected] (updated 07/set/2015) Class: GASTROPODA --- Clade: VETIGASTROPODA-TROCHOIDEA ------ Family: TURBINIDAE Rafinesque, 1815 (Sea) - Alphabetic order - when first name is in bold the species has images Taxa=681, Genus=26, Subgenus=17, Species=203, Subspecies=23, Synonyms=411, Images=168 abyssorum , Bolma henica abyssorum M.M. Schepman, 1908 aculeata , Guildfordia aculeata S. Kosuge, 1979 aculeatus , Turbo aculeatus T. Allan, 1818 - syn of: Epitonium muricatum (A. Risso, 1826) acutangulus, Turbo acutangulus C. Linnaeus, 1758 acutus , Turbo acutus E. Donovan, 1804 - syn of: Turbonilla acuta (E. Donovan, 1804) aegyptius , Turbo aegyptius J.F. Gmelin, 1791 - syn of: Rubritrochus declivis (P. Forsskål in C. Niebuhr, 1775) aereus , Turbo aereus J. Adams, 1797 - syn of: Rissoa parva (E.M. Da Costa, 1778) aethiops , Turbo aethiops J.F. Gmelin, 1791 - syn of: Diloma aethiops (J.F. Gmelin, 1791) agonistes , Turbo agonistes W.H. Dall & W.H. Ochsner, 1928 - syn of: Turbo scitulus (W.H. Dall, 1919) albidus , Turbo albidus F. Kanmacher, 1798 - syn of: Graphis albida (F. Kanmacher, 1798) albocinctus , Turbo albocinctus J.H.F. Link, 1807 - syn of: Littorina saxatilis (A.G. Olivi, 1792) albofasciatus , Turbo albofasciatus L. Bozzetti, 1994 albofasciatus , Marmarostoma albofasciatus L. Bozzetti, 1994 - syn of: Turbo albofasciatus L. Bozzetti, 1994 albulus , Turbo albulus O. Fabricius, 1780 - syn of: Menestho albula (O. Fabricius, 1780) albus , Turbo albus J. Adams, 1797 - syn of: Rissoa parva (E.M. Da Costa, 1778) albus, Turbo albus T. Pennant, 1777 amabilis , Turbo amabilis H. Ozaki, 1954 - syn of: Bolma guttata (A. Adams, 1863) americanum , Lithopoma americanum (J.F.
    [Show full text]
  • Atlas De La Faune Marine Invertébrée Du Golfe Normano-Breton. Volume
    350 0 010 340 020 030 330 Atlas de la faune 040 320 marine invertébrée du golfe Normano-Breton 050 030 310 330 Volume 7 060 300 060 070 290 300 080 280 090 090 270 270 260 100 250 120 110 240 240 120 150 230 210 130 180 220 Bibliographie, glossaire & index 140 210 150 200 160 190 180 170 Collection Philippe Dautzenberg Philippe Dautzenberg (1849- 1935) est un conchyliologiste belge qui a constitué une collection de 4,5 millions de spécimens de mollusques à coquille de plusieurs régions du monde. Cette collection est conservée au Muséum des sciences naturelles à Bruxelles. Le petit meuble à tiroirs illustré ici est une modeste partie de cette très vaste collection ; il appartient au Muséum national d’Histoire naturelle et est conservé à la Station marine de Dinard. Il regroupe des bivalves et gastéropodes du golfe Normano-Breton essentiellement prélevés au début du XXe siècle et soigneusement référencés. Atlas de la faune marine invertébrée du golfe Normano-Breton Volume 7 Bibliographie, Glossaire & Index Patrick Le Mao, Laurent Godet, Jérôme Fournier, Nicolas Desroy, Franck Gentil, Éric Thiébaut Cartographie : Laurent Pourinet Avec la contribution de : Louis Cabioch, Christian Retière, Paul Chambers © Éditions de la Station biologique de Roscoff ISBN : 9782951802995 Mise en page : Nicole Guyard Dépôt légal : 4ème trimestre 2019 Achevé d’imprimé sur les presses de l’Imprimerie de Bretagne 29600 Morlaix L’édition de cet ouvrage a bénéficié du soutien financier des DREAL Bretagne et Normandie Les auteurs Patrick LE MAO Chercheur à l’Ifremer
    [Show full text]
  • DNA Barcoding of Marine Mollusks Associated with Corallina Officinalis
    diversity Article DNA Barcoding of Marine Mollusks Associated with Corallina officinalis Turfs in Southern Istria (Adriatic Sea) Moira Burši´c 1, Ljiljana Iveša 2 , Andrej Jaklin 2, Milvana Arko Pijevac 3, Mladen Kuˇcini´c 4, Mauro Štifani´c 1, Lucija Neal 5 and Branka Bruvo Madari´c¯ 6,* 1 Faculty of Natural Sciences, Juraj Dobrila University of Pula, Zagrebaˇcka30, 52100 Pula, Croatia; [email protected] (M.B.); [email protected] (M.Š.) 2 Center for Marine Research, Ruder¯ Boškovi´cInstitute, G. Paliage 5, 52210 Rovinj, Croatia; [email protected] (L.I.); [email protected] (A.J.) 3 Natural History Museum Rijeka, Lorenzov Prolaz 1, 51000 Rijeka, Croatia; [email protected] 4 Department of Biology, Faculty of Science, University of Zagreb, Rooseveltov trg 6, 10000 Zagreb, Croatia; [email protected] 5 Kaplan International College, Moulsecoomb Campus, University of Brighton, Watts Building, Lewes Rd., Brighton BN2 4GJ, UK; [email protected] 6 Molecular Biology Division, Ruder¯ Boškovi´cInstitute, Bijeniˇcka54, 10000 Zagreb, Croatia * Correspondence: [email protected] Abstract: Presence of mollusk assemblages was studied within red coralligenous algae Corallina officinalis L. along the southern Istrian coast. C. officinalis turfs can be considered a biodiversity reservoir, as they shelter numerous invertebrate species. The aim of this study was to identify mollusk species within these settlements using DNA barcoding as a method for detailed identification of mollusks. Nine locations and 18 localities with algal coverage range above 90% were chosen at four research areas. From 54 collected samples of C. officinalis turfs, a total of 46 mollusk species were Citation: Burši´c,M.; Iveša, L.; Jaklin, identified.
    [Show full text]
  • With a Little Help from DNA Barcoding
    www.nature.com/scientificreports OPEN With a little help from DNA barcoding: investigating the diversity of Gastropoda from the Received: 25 August 2015 Accepted: 30 December 2015 Portuguese coast Published: 15 February 2016 Luísa M. S. Borges1,2,3, Claudia Hollatz1, Jorge Lobo1,4, Ana M. Cunha1, Ana P. Vilela1, Gonçalo Calado4,5,6, Rita Coelho6,7, Ana C. Costa8, Maria S. G. Ferreira1, Maria H. Costa4 & Filipe O. Costa1 The Gastropoda is one of the best studied classes of marine invertebrates. Yet, most species have been delimited based on morphology only. The application of DNA barcodes has shown to be greatly useful to help delimiting species. Therefore, sequences of the cytochrome c oxidase I gene from 108 specimens of 34 morpho-species were used to investigate the molecular diversity within the gastropods from the Portuguese coast. To the above dataset, we added available COI-5P sequences of taxonomically close species, in a total of 58 morpho-species examined. There was a good match between ours and sequences from independent studies, in public repositories. We found 32 concordant (91.4%) out of the 35 Barcode Index Numbers (BINs) generated from our sequences. The application of a ranking system to the barcodes yield over 70% with top taxonomic congruence, while 14.2% of the species barcodes had insufficient data. In the majority of the cases, there was a good concordance between morphological identification and DNA barcodes. Nonetheless, the discordance between morphological and molecular data is a reminder that even the comparatively well-known European marine gastropods can benefit from being probed using the DNA barcode approach.
    [Show full text]
  • Patterns of Mussel Bed Infaunal Community Structure and Function at Local, Regional and Biogeographic Scales
    Patterns of mussel bed infaunal community structure and function at local, regional and biogeographic scales A thesis submitted for the degree of Doctor of Philosophy Andrew James Richardson (BSc. (Hons) Coastal Marine Biology) List of contents List of figures iv List of tables vi List of plates viii Acknowledgements ix Chapter 1 – General Introduction 1.1 Ecological diversity 1 1.2 Functional Groups 5 1.3 Spatial scales in ecology 11 1.4 Temperate intertidal systems 13 1.5 Mytilus edulis 23 1.6 Aims of the present work 38 Chapter 2 – Optimal sampling and assemblage description 2.1 Introduction 41 2.2 Methods 46 2.2.1 Site description 46 2.2.2 Sampling regime 47 2.2.3 Data analysis 50 2.2.3.1 Comparison of species-area curves between SITE and SEASON 50 2.2.3.2 Comparison of assemblage similarity between quadrat sizes 52 2.3 Results 53 2.3.1 Comparison of species area curves between SITE and SEASON 53 2.3.2 Comparison of assemblage structure between quadrat sizes 56 2.4 Discussion 58 Chapter 3 – A Functional Grouping Approach to Infaunal Research 3.1 Introduction 63 3.2 Methods 66 3.2.1 Sampling regime 66 3.2.1.1 Feeding function approach 67 3.2.1.2 Reproductive mode function approach 69 i List of contents 3.2.2 Data analysis 71 3.2.2.1 Species level approach 71 3.2.2.2 Feeding function approach 73 3.2.2.3 Reproductive mode function approach 74 3.2.2.4 Comparison of approaches 74 3.3 Results 75 3.3.1 Variation in assemblage structure using the species level approach 75 3.3.2 Assemblage variation with a feeding function approach 82 3.3.3 Assemblage variation with a reproductive mode function approach 89 3.3.4 Comparison of approaches 96 3.4 Discussion 99 Chapter 4 – How do infaunal assemblage patterns vary at large biogeographical scales and what drives them? 4.1.
    [Show full text]
  • Dispersal Ability, Habitat Characteristics, and Sea-Surface
    Baptista et al. BMC Ecol Evo (2021) 21:128 BMC Ecology and Evolution https://doi.org/10.1186/s12862-021-01862-1 RESEARCH Open Access Dispersal ability, habitat characteristics, and sea-surface circulation shape population structure of Cingula trifasciata (Gastropoda: Rissoidae) in the remote Azores Archipelago L. Baptista1,2,3,4*, H. Meimberg1, S. P. Ávila2,3,4,5, A. M. Santos4,6 and M. Curto1,7 Abstract Background: In the marine realm, dispersal ability is among the major factors shaping the distribution of species. In the Northeast Atlantic Ocean, the Azores Archipelago is home to a multitude of marine invertebrates which, despite their dispersal limitations, maintain gene fow among distant populations, with complex evolutionary and biogeo- graphic implications. The mechanisms and factors underlying the population dynamics and genetic structure of non- planktotrophic gastropods within the Azores Archipelago and related mainland populations are still poorly under- stood. The rissoid Cingula trifasciata is herewith studied to clarify its population structure in the Northeast Atlantic Ocean and factors shaping it, with a special focus in intra-archipelagic dynamics. Results: Coupling microsatellite genotyping by amplicon sequencing (SSR-GBAS) and mitochondrial datasets, our results suggest the diferentiation between insular and continental populations of Cingula trifasciata, supporting previously raised classifcation issues and detecting potential cryptic diversity. The fnding of connectivity between widely separated populations was startling. In unique ways, dispersal ability, habitat type, and small-scale oceano- graphic currents appear to be the key drivers of C. trifasciata’s population structure in the remote Azores Archipelago. Dispersal as non-planktotrophic larvae is unlikely, but its small-size adults easily engage in rafting.
    [Show full text]
  • 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
    [Show full text]
  • New and Little Known Mollusca from Iceland and Scandinavia
    NEW AND LITTLE KNOWN MOLLUSCA FROM ICELAND AND SCANDINAVIA. PART 3. ANDERS WARÉN WARÉN, ANDERS. 1996 10 15. New and little known Mollusca from Iceland and Scandinavia. SARSIA Part 3. – Sarsia 81:197-245. Bergen. ISSN 0036-4827. This paper is a continuation of WARÉN’s articles in Sarsia volumes 74, 76, and 78. Mikro globulus gen. et sp.n. (Archaeogastropoda, provisionally in Skeneidae) is described from the Icelandic shelf and Anekes giustii NOFRONI & BOGI, 1989 from the Mediterranean is transferred to this genus. Protolira thorvaldsoni sp.n. (Archaeogastropoda, Skeneidae) is described from decaying whale bone found off southwestern Iceland. Coccopigya lata sp.n. (Archaeogastropoda, Cocculinidae), Alvania angularis sp.n. and A. incognita (Mesogastropoda, Rissoidae) are described from sunken drift wood from deep water off Iceland. Onoba improcera sp.n. and O. torelli sp.n. (Mesogastropoda, Rissoidae) are described from northern Iceland. ‘Cingula’ globuloides WARÉN, 1972 (formerly in Rissoidae) is transferred to Elachisina (Mesogastropoda, Elachisinidae). Alvania alaskana (DALL, 1887) and Alvania dinora (BARTSCH, 1917), both from Alaska, are synonymised with Onoba mighelsi (STIMPSON, 1851) (Mesogastropoda, Rissoidae). Brookesena turrita sp.n. (Heterobranchia, Mathildidae) is described from several localities around the Icelandic upper continental slope and Turritellopsis stimpsoni DALL, 1919 (formerly known as T. acicula (STIMPSON, 1851), Mesogastropoda, Turritellidae) is transferred to the Mathildidae. All northeast Atlantic species of Rissoidae (Mesogastropoda) except the genera Rissoa and Pusillina are reviewed, and their distribution and habitat is given. Substantial extension of the distributional range is given for the following Gastropoda: Granigyra inflata (WARÉN, 1992), off southwestern Iceland ca 1000 m. Lissotesta turrita (GAGLINI, 1987), off southwestern Iceland ca 1200 m.
    [Show full text]
  • Porcupine Marine Natural History Society Newsletter 22, 15-23 Hill, A.E
    PORCUPINE MARINE NATURAL HISTORY SOCIETY NEWSLETTER Summer 2008 Number 24 ISSN 1466-0369 Porcupine Marine Natural History Society Newsletter No. 24 Summer 2008 Hon. Treasurer Membership Jon Moore Séamus Whyte Ti Cara The Cottage Point Lane Back Lane Cosheston Ingoldsby Pembroke Dock Lincolnshire Pembrokeshire NG33 4EW SA72 4UN 01476 585496 01646 687946 [email protected] [email protected] Hon. Editors Chairman Frances Dipper Julia Nunn The Black Bull Cherry Cottage 18 High Street 11 Ballyhaft Rd Landbeach Newtonards Cambridgeshire Co. Down BT 22 2AW CB25 9FT [email protected] 01223 861836 [email protected] Porcupine MNHS welcomes new members- scientists, Peter Tinsley students, divers, naturalists and lay people. We are 4 Elm Villas an informal society interested in marine natural North Street history and recording particularly in the North Wareham Atlantic and ‘Porcupine Bight’. Members receive 2 Dorset newsletters a year which include proceedings from BH20 4AE scientific meetings. 01929 556653 [email protected] Individual £10 Student £5 www.pmnhs.co.uk COUNCIL MEMBERS Frances Dipper [email protected] Julia Nunn [email protected] Jon Moore [email protected] Seamus Whyte [email protected] Tammy Horton [email protected] Vicki Howe [email protected] Peter Tinsley [email protected] Roni Robbins [email protected] Sue Chambers [email protected] Andy Mackie [email protected] Roger Bamber [email protected] Sophie Henderson Anne Bunker [email protected] Paul Brazier [email protected] Peter Barfield [email protected] Cover Image: This beautiful image of the Porcupine Bank was created by Bob Downie (Porcupine former council member Frank Evan’s son-in-law) who is an oil sedimentologist Editorial As a book author and editor, factual, grammatical and typographical accuracy are of great interest and importance to me.
    [Show full text]
  • Mollusc World Magazine Issue 23:Mollusc World Magazine 16/6/10 15:18 Page 1
    Mollusc World Magazine Issue 23:Mollusc World Magazine 16/6/10 15:18 Page 1 IssueMolluscWorld 23 July 2010 Leeds Regional Meeting Introductions and “Alien” species Recorders reports A year in the field Sherwood Forest slugs THE CONCHOLOGICAL SOCIETY OF GREAT BRITAIN AND IRELAND Mollusc World Magazine Issue 23:Mollusc World Magazine 16/6/10 15:18 Page 2 From the Hon. Editor “Silent Summer”*, an important review of the state of wildlife in Britain and Ireland published in May this year, includes chapters reporting on the status of specific groups (e.g. “Land and freshwater molluscs” by Ian Killeen) where the increasing impact of introduced species is a particular emphasis. In April I noticed for the first time an adult specimen of Hygromia cinctella in my Bedfordshire garden. This was the first record locally of this introduced species, despite our previous hard winter in the U.K. It’s not surprising that there are several articles in this magazine which relate to the discovery of alien species from both marine and non-marine environments. It is always satisfying to be able to include aids to identification in the magazine and I would highly recommend Ben Rowson’s image of upper shore crevice fauna, included on page 17 as part of the Marine Recorder’s report. Once again, thanks are due to all who have sent in interesting contributions. I continue to value input on a wide range of subjects from members in the UK and Ireland and internationally, as this adds an essential wider context and interest. Latest copy submission date (dependant upon space available) for the next issue is 30th September.
    [Show full text]
  • Caracterização E Cartografia Da Fauna Intertidal Das Praias Rochosas De Matosinhos
    CARACTERIZAÇÃO E CARTOGRAFIA DA FAUNA INTERTIDAL DAS PRAIAS ROCHOSAS DE Ana Catarina Cruz da Costa MATOSINHOS Ana Catarina Cruz da Costa Mestrado em Ciências e Tecnologia do Ambiente Departamento de Geociências, Ambiente e Ordenamento do Território 2012 Orientador Doutor Paulo José Talhadas dos Santo s, Professor auxiliar, Faculdade de Ciências da Universid ade do Porto FCUP i Caracterização e cartografia da fauna intertidal das praias rochosas de Matosinhos Agradecimentos Ao Professor Doutor Paulo Talhadas dos Santos, meu coordenador, por me proporcionar a oportunidade de realizar este trabalho. Pela sua disponibilidade, compreensão e ajuda na elaboração desta dissertação e cedência de material bibliográfico. Ao André Carvalho que para além de um colega de trabalho de campo e de laboratório, foi um verdadeiro amigo e companheiro fora dos locais de trabalho, pela sua paciência e palavras de incentivo. À Sofia Tavares por estar sempre pronta a ajudar, pelas trocas de conhecimentos e pela ajuda fundamental na elaboração da tese. À Sara Monteiro por me aturar como colega de campo, pelas trocas de opinião e pelo convívio durante o trabalho. Ao Rui Fernandes pela sua sempre prontidão no esclarecimento de dúvidas informáticas. À Sandra, Marta e Mia pela amizade demonstrada ao longo do meu percurso académico, que tornaram este longo caminho mais fácil de percorrer. Ao Cláudio pela imensa paciência, disponibilidade, dedicação, ajuda e carinho. Aos meus pais por me terem dado a oportunidade de tirar um curso superior, pela compreensão, apoio e incentivo durante todo o trabalho. Ao meu irmão e restante família por toda a ajuda, compreensão e incentivo. FCUP ii Caracterização e cartografia da fauna intertidal das praias rochosas de Matosinhos Sumário Os recursos marinhos têm ganho uma crescente atenção, pela elevada importância na economia de países costeiros.
    [Show full text]
  • (Mollusca: Bivalvia) E Gastrópodes (Mollusca: Gastropoda) Da Costa Portuguesa
    Universidade do Minho Escola de Ciências Ana Paula Peixoto Vilela Biblioteca de referência de DNA barcodes de bivalves (Mollusca: Bivalvia) e gastrópodes (Mollusca: Gastropoda) da costa Portuguesa. Biblioteca de referência de DNA(Mollusca: barcodes de bivalves e gastrópodesBivalvia) (Mollusca: Gastropoda) da costa Portuguesa. Ana Paula Peixoto Vilela outubro de 2015 UMinho | 2015 Universidade do Minho Escola de Ciências Ana Paula Peixoto Vilela Biblioteca de referência de DNA barcodes de bivalves (Mollusca: Bivalvia) e gastrópodes (Mollusca: Gastropoda) da costa Portuguesa. Dissertação de Mestrado Mestrado em Ecologia Trabalho efectuado sob a orientação de Professor Doutor Filipe José Oliveira Costa e coorientação da Doutora Claudia Hollatz outubro de 2015 Agradecimentos Queria deixar um especial obrigado ao meu orientador Doutor Filipe Costa, por me ter proporcionado a oportunidade de trabalhar nesta área que sempre me despertou interesse, por todos os conhecimentos transmitidos, disponibilidade, paciência e apoio na realização desta tese. À minha coorientadora Doutora Claudia Hollatz, igualmente por todos os conhecimentos transmitidos, por me ter ensinado tudo sobre como trabalhar corretamente no laboratório, pela amizade, paciência e por toda a sua disponibilidade demonstrada durante este ano de trabalho. Aos meus colegas de laboratório (Ilisa, Luís, Ana Sofia, Rita, Renata, Jorge, Adriana, Hugo) pela boa disposição que sempre proporcionaram no laboratório, pelos momentos de companheirismo e risada. Aos meus queridos amigos e amigas (Ana Raquel, Denise, Joana, Mafalda, Zé e a todos os Malotas) um muito obrigado por me terem aturado sempre que o trabalho não corria tão bem e de me tirarem de casa para espairecer. Por último, mas não menos importantes, quero agradecer aos meus pais, por terem feito de mim o que sou hoje, por tudo o que sempre fizeram por mim, por todo o apoio que sempre me deram e por me terem proporcionado esta oportunidade de poder prosseguir com a vida académica e obter o grau de mestre em Ecologia.
    [Show full text]