Gastrópodos Prosobranquios Del Extremo Sur De Chile
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(Neogastropoda) from the Magellanic Province
THE NAUTILUS 123(2):49–52, 2009 Page 49 An unusual new genus and a new species of Buccinulidae (Neogastropoda) from the Magellanic Province Yu. I. Kantor Guido Pastorino A.N. Severtzov Institute of Ecology and Evolution, Museo Argentino de Ciencias Naturales Russian Academy of Sciences, Av. Angel Gallardo 470 3 piso lab. 80 Leninski prospect 33, Moscow 119071, RUSSIA C1405DJR Buenos Aires, ARGENTINA [email protected] [email protected] ABSTRACT out bodies were re-hydratated to facilitate dissections. After cleaning with diluted bleach, air-dried, mounted A new genus and species of the family Buccinulidae is de- on glass slides, and coated with gold-palladium radulae scribed from the Southwestern Atlantic in Argentine waters. were studied with help of a scanning electron micro- Jerrybuccinum malvinense new genus and species combines the conchological characters of Fasciolariidae with the radula scope at USNM. Most photographs were taken using a of Buccinulidae. digital camera. All images were digitally processed. Additional keywords: Gastropoda, southwestern Atlantic, Jerrybuccinum malvinense , new genus, new species SYSTEMATICS Class Gastropoda Cuvier, 1797 Order Neogastropoda Wenz, 1938 Superfamily Buccinoidea Rafinesque, 1815 INTRODUCTION Family Buccinulidae Finlay, 1928 The intensive collecting efforts of the United States Genus Jerrybuccinum new genus Antarctic Program (USAP) in the Antarctic and Magel- Jerrybuccinum malvinense lanic regions yielded rich collections, which stored at Type Species: new spe- the National Museum of Natural History, Smithsonian cies, by original designation. (Currently the only species Institution. included into the new genus is the type species.) These collections have been the source of a vast Description: Shell fusiform, with tall spire and long number of new species of mollusks described in several attenuated siphonal canal. -
(Approx) Mixed Micro Shells (22G Bags) Philippines € 10,00 £8,64 $11,69 Each 22G Bag Provides Hours of Fun; Some Interesting Foraminifera Also Included
Special Price £ US$ Family Genus, species Country Quality Size Remarks w/o Photo Date added Category characteristic (€) (approx) (approx) Mixed micro shells (22g bags) Philippines € 10,00 £8,64 $11,69 Each 22g bag provides hours of fun; some interesting Foraminifera also included. 17/06/21 Mixed micro shells Ischnochitonidae Callistochiton pulchrior Panama F+++ 89mm € 1,80 £1,55 $2,10 21/12/16 Polyplacophora Ischnochitonidae Chaetopleura lurida Panama F+++ 2022mm € 3,00 £2,59 $3,51 Hairy girdles, beautifully preserved. Web 24/12/16 Polyplacophora Ischnochitonidae Ischnochiton textilis South Africa F+++ 30mm+ € 4,00 £3,45 $4,68 30/04/21 Polyplacophora Ischnochitonidae Ischnochiton textilis South Africa F+++ 27.9mm € 2,80 £2,42 $3,27 30/04/21 Polyplacophora Ischnochitonidae Stenoplax limaciformis Panama F+++ 16mm+ € 6,50 £5,61 $7,60 Uncommon. 24/12/16 Polyplacophora Chitonidae Acanthopleura gemmata Philippines F+++ 25mm+ € 2,50 £2,16 $2,92 Hairy margins, beautifully preserved. 04/08/17 Polyplacophora Chitonidae Acanthopleura gemmata Australia F+++ 25mm+ € 2,60 £2,25 $3,04 02/06/18 Polyplacophora Chitonidae Acanthopleura granulata Panama F+++ 41mm+ € 4,00 £3,45 $4,68 West Indian 'fuzzy' chiton. Web 24/12/16 Polyplacophora Chitonidae Acanthopleura granulata Panama F+++ 32mm+ € 3,00 £2,59 $3,51 West Indian 'fuzzy' chiton. 24/12/16 Polyplacophora Chitonidae Chiton tuberculatus Panama F+++ 44mm+ € 5,00 £4,32 $5,85 Caribbean. 24/12/16 Polyplacophora Chitonidae Chiton tuberculatus Panama F++ 35mm € 2,50 £2,16 $2,92 Caribbean. 24/12/16 Polyplacophora Chitonidae Chiton tuberculatus Panama F+++ 29mm+ € 3,00 £2,59 $3,51 Caribbean. -
Fasciolariidae
WMSDB - Worldwide Mollusc Species Data Base Family: FASCIOLARIIDAE Author: Claudio Galli - [email protected] (updated 07/set/2015) Class: GASTROPODA --- Clade: CAENOGASTROPODA-HYPSOGASTROPODA-NEOGASTROPODA-BUCCINOIDEA ------ Family: FASCIOLARIIDAE Gray, 1853 (Sea) - Alphabetic order - when first name is in bold the species has images Taxa=1523, Genus=128, Subgenus=5, Species=558, Subspecies=42, Synonyms=789, Images=454 abbotti , Polygona abbotti (M.A. Snyder, 2003) abnormis , Fusus abnormis E.A. Smith, 1878 - syn of: Coralliophila abnormis (E.A. Smith, 1878) abnormis , Latirus abnormis G.B. III Sowerby, 1894 abyssorum , Fusinus abyssorum P. Fischer, 1883 - syn of: Mohnia abyssorum (P. Fischer, 1884) achatina , Fasciolaria achatina P.F. Röding, 1798 - syn of: Fasciolaria tulipa (C. Linnaeus, 1758) achatinus , Fasciolaria achatinus P.F. Röding, 1798 - syn of: Fasciolaria tulipa (C. Linnaeus, 1758) acherusius , Chryseofusus acherusius R. Hadorn & K. Fraussen, 2003 aciculatus , Fusus aciculatus S. Delle Chiaje in G.S. Poli, 1826 - syn of: Fusinus rostratus (A.G. Olivi, 1792) acleiformis , Dolicholatirus acleiformis G.B. I Sowerby, 1830 - syn of: Dolicholatirus lancea (J.F. Gmelin, 1791) acmensis , Pleuroploca acmensis M. Smith, 1940 - syn of: Triplofusus giganteus (L.C. Kiener, 1840) acrisius , Fusus acrisius G.D. Nardo, 1847 - syn of: Ocinebrina aciculata (J.B.P.A. Lamarck, 1822) aculeiformis , Dolicholatirus aculeiformis G.B. I Sowerby, 1833 - syn of: Dolicholatirus lancea (J.F. Gmelin, 1791) aculeiformis , Fusus aculeiformis J.B.P.A. Lamarck, 1816 - syn of: Perrona aculeiformis (J.B.P.A. Lamarck, 1816) acuminatus, Latirus acuminatus (L.C. Kiener, 1840) acus , Dolicholatirus acus (A. Adams & L.A. Reeve, 1848) acuticostatus, Fusinus hartvigii acuticostatus (G.B. II Sowerby, 1880) acuticostatus, Fusinus acuticostatus G.B. -
Predation by Drilling Gastropods and Asteroids Upon Mussels in Rocky Shallow Shores of Southernmost South America: Paleontological Implications
Predation by drilling gastropods and asteroids upon mussels in rocky shallow shores of southernmost South America: Paleontological implications SANDRA GORDILLO and FERNANDO ARCHUBY Gordillo, S. and Archuby, F. 2012. Predation by drilling gastropods and asteroids upon mussels in rocky shallow shores of southernmost South America: Paleontological implications. Acta Palaeontologica Polonica 57 (3): 633–646. To achieve a better understanding of predation pattern recorded in the fossil record it is essential to study predator−prey in− teractions in the modern seas. It includes the data collected from the field observations as well as from the experiments in captivity. Such an approach allows recognition of the bioeroders, its description and also provides quantification of these interactions. This work offers a case study of the traces of predation resulting from the predator−prey interactions between three mussels: Mytilus chilensis, Brachidontes purpuratus, and Aulacomya atra; and their five natural enemies: the gas− tropods Trophon geversianus, Xymenopsis muriciformis, and Acanthina monodon, and the asteroids Cosmasterias lurida and Anasterias antarctica living along the intertidal and/or subtidal rocky shores in Tierra del Fuego. The predatory dam− age to mussel shells varies according to the predator and prey species and techniques for attacking prey are highly special− ized. A. monodon drills a hole in B. purpuratus but uses the outer lip of its shell as a wedge to open the valves of M. chilensis and A. atra. T. geversianus always makes holes, but while it drills the valve walls of M. chilensis, it prefers to drill the valve edges of A. atra and B. purpuratus, with different characteristic patterns. -
Diversity of Benthic Marine Mollusks of the Strait of Magellan, Chile
ZooKeys 963: 1–36 (2020) A peer-reviewed open-access journal doi: 10.3897/zookeys.963.52234 DATA PAPER https://zookeys.pensoft.net Launched to accelerate biodiversity research Diversity of benthic marine mollusks of the Strait of Magellan, Chile (Polyplacophora, Gastropoda, Bivalvia): a historical review of natural history Cristian Aldea1,2, Leslie Novoa2, Samuel Alcaino2, Sebastián Rosenfeld3,4,5 1 Centro de Investigación GAIA Antártica, Universidad de Magallanes, Av. Bulnes 01855, Punta Arenas, Chile 2 Departamento de Ciencias y Recursos Naturales, Universidad de Magallanes, Chile 3 Facultad de Ciencias, Laboratorio de Ecología Molecular, Departamento de Ciencias Ecológicas, Universidad de Chile, Santiago, Chile 4 Laboratorio de Ecosistemas Marinos Antárticos y Subantárticos, Universidad de Magallanes, Chile 5 Instituto de Ecología y Biodiversidad, Santiago, Chile Corresponding author: Sebastián Rosenfeld ([email protected]) Academic editor: E. Gittenberger | Received 19 March 2020 | Accepted 6 June 2020 | Published 24 August 2020 http://zoobank.org/9E11DB49-D236-4C97-93E5-279B1BD1557C Citation: Aldea C, Novoa L, Alcaino S, Rosenfeld S (2020) Diversity of benthic marine mollusks of the Strait of Magellan, Chile (Polyplacophora, Gastropoda, Bivalvia): a historical review of natural history. ZooKeys 963: 1–36. https://doi.org/10.3897/zookeys.963.52234 Abstract An increase in richness of benthic marine mollusks towards high latitudes has been described on the Pacific coast of Chile in recent decades. This considerable increase in diversity occurs specifically at the beginning of the Magellanic Biogeographic Province. Within this province lies the Strait of Magellan, considered the most important channel because it connects the South Pacific and Atlantic Oceans. These characteristics make it an interesting area for marine research; thus, the Strait of Magellan has histori- cally been the area with the greatest research effort within the province. -
Cenozoic Evolution of Muricidae (Mollusca, Neogastropoda) in the Southern Ocean, with the Description of a New Subfamily
Zoologica Scripta Cenozoic evolution of Muricidae (Mollusca, Neogastropoda) in the Southern Ocean, with the description of a new subfamily ANDREA BARCO,STEFANO SCHIAPARELLI,ROLAND HOUART &MARCO OLIVERIO Submitted: 30 January 2012 Barco, A., Schiaparelli, S., Houart, R. & Oliverio, M. (2012). Cenozoic evolution of Accepted: 23 May 2012 Muricidae (Mollusca, Neogastropoda) in the Southern Ocean, with the description of a doi:10.1111/j.1463-6409.2012.00554.x new subfamily. —Zoologica Scripta, 41, 596–616. Gastropods are among the most studied group in Antarctica, and taxa with an advanced status of systematic knowledge can be used as a model to study how oceanographic and cli- matic patterns shaped Recent faunal assemblages. Within the ongoing study of the muricid phylogeny, we have analysed molecular and morphological data from species traditionally ascribed to the muricid subfamily Trophoninae. Particularly, the availability of specimens collected in the Southern Ocean and surrounding basins allowed to demonstrate as the genera Pagodula, Xymenopsis, Xymene and Trophonella, which are traditionally classified in the Trophoninae, actually belong to a distinct lineage, for which the new subfamily Pago- dulinae is herein introduced. We propose and discuss a possible framework for the origin and radiation of Antarctic muricids. Corresponding Author: Andrea Barco, Dipartimento di Biologia e Biotecnologie ‘‘Charles Darwin’’, Universita` di Roma ‘‘La Sapienza’’, Viale dell’Universita` 32, I-00185 Rome, Italy. E-mail: [email protected] Stefano Schiaparelli, Dipartimento di Scienze della Terra, dell’Ambiente e della Vita (Di. S. T. A. V.), Universita` di Genova, C.so Europa 26, I-16132 Genova, Italy. E-mail: stefano.schiaparel- [email protected] Roland Houart, Institut Royal des Sciences Naturelles de Belgique, Rue Vautier 29, B-1000 Brux- elles, Belgium. -
MOLLUSCAN FORUM 2011 ABSTRACTS…...…………3 to 16 VERÓNICA NÚÑEZ: XXII Encontro Brasileiro De Malacologia RESEARCH GRANT REPORTS: (EBRAM)
Number 58 (February 2012) The Malacologist Page 1 NUMBER 58 FEBRUARY 2012 TRAVEL GRANT REPORTS: Contents th EDITORIAL ………………………………...………….…... 2 FERNANDO ANEIROS : 6 Congress of the European Malacological SocietiesVitoria-Gasteiz (Spain), 18-22 July 011 .......................25 MOLLUSCAN FORUM 2011 ABSTRACTS…...…………3 to 16 VERÓNICA NÚÑEZ: XXII Encontro Brasileiro de Malacologia RESEARCH GRANT REPORTS: (EBRAM). 4 - 8 September 2011, Fortaleza, Brazil..................26 MAX MALISKA: Evolution of different modes of development in IN MEMORIAM Littorina: a molecular phylogenetic approach……………….….17 W L Paraense........................................................................26 MAGDELENA MARZEC: Microhabitat preferences of co-existing forest Clausiliidae.........................................................................20 George Crawford..................................................................27 CONOR D WILSON, GARETH ARNOTT & ROBERT ELWOOD: Pear GRANTS AND AWARDS..............................................................31 mussels show plasticity of responses to different predation risks FORTHCOMING MEETINGS ……………………………...….. 32 but also show consistent differences in responsiveness ............23 PUBLICATIONS AND ACCESS......................................................33 NEWS OF PUBLICATIONS..............................PAGES 16, 24, 25, 34, SOCIETY NOTICES …………………………………….…........34 SOCIETY AWARDS AND GRANTS ………………………..........35 CONFERENCE—MOLLUSCAN LIFE CYCLES..................................36 AGM NOMINATIONS -
CABO DE HORNOS - DIEGO RAMÍREZ BIODIVERSIDAD Y PROPUESTA DE CONSERVACIÓN Julio Del 2017
CABO DE HORNOS - DIEGO RAMÍREZ BIODIVERSIDAD Y PROPUESTA DE CONSERVACIÓN Julio del 2017 National Geographic Pristine Seas Waitt Foundation 2 COMO CITAR ESTE DOCUMENTO: Salinas-de-León P, Friedlander A, Ballesteros E, Henning B, Hune M, Sala E. 2017. Cabo de Hornos - Diego Ramírez. Biodiversidad y propuesta de conservación. Informe técnico para el Gobierno de Chile. National Geographic Pristine Seas, Washington, D.C. 79pp ÍNDICE DE CONTENIDOS RESUMEN EJECUTIVO . .4 INTRODUCCIÓN . 6 ECOSISTEMAS SUBMARINOS . .11 UN GRAN ECOSISTEMA PELÁGICO . 46 AMENAZAS . 50 NECESIDADES DE CONSERVACIÓN. .64 BIBLIOGRAFÍA . 67 ANEXOS . 74 4 RESUMEN EJECUTIVO Chile se ha convertido en un líder mundial en conservación al crear los dos parques marinos más grandes de América alrededor de islas oceánicas. Hoy el desafío es ampliar ese liderazgo para cubrir de manera representativa otros ecosistemas de Chile. La Región de Magallanes presenta una oportunidad única para crear el parque marino más grande e importante del Cono Sur en la zona de Cabo de Hornos y las islas Diego Ramírez. Los archipiélagos más australes del continente americano albergan un ecosistema marino- terrestre único e intacto. Su valor ecológico es irremplazable: ◾◾ Un ecosistema marino prístino de alta productividad. ◾◾ Los fondos costeros albergan extensos bosques de kelp, auténticas catedrales submarinas donde habitan innumerables especies como la centolla. ◾◾ El abundante krill, base de la cadena alimentaria, sostiene a pingüinos, sardinas y ballenas. ◾◾ Abundantes colonias de lobos marinos, elefantes marinos, y cientos de miles de aves marinas – incluyendo a especies amenazadas. ◾◾ Es la puerta natural de Chile a la Antártida. AMENAZAS ◾◾ La pesca industrial en la región ya ha sobreexplotado especies como el bacalo de profundidad, la merluza austral y la centolla. -
Zoogeografía De Macroinvertebrados Bentónicos De La Costa De Chile: Contribución Para La Conservación Marina
Revista Chilena de Historia Natural 73: 99-129, 2000 Zoogeografía de macroinvertebrados bentónicos de la costa de Chile: contribución para la conservación marina Zoogeography of benthic macroinvertebrates of the Chilean coast: contribution for marine conservation DOMINGO A. LANCELLOTII & JULIO A. VASQUEZ 1 Departamento de Biología Marina, Facultad de Ciencias del Mar, Universidad Católica del Norte, Casilla 117, Coquimbo, Chile, e-mail: [email protected] RESUMEN La diversidad de macroinvertebrados marinos ha recibido una atención creciente, no obstante, con un escaso tratamiento en el contexto biogeográfico. Este estudio analiza los registros de 1.601 especies de macroinvertebrados bentónicos pertenecientes a: Demospongiae, Anthozoa, Polychaeta, Mollusca, Crustacea, Echinodermata y Ascideacea, agrupados en 10 zonas y tratados desde una perspectiva zoogeográfica. Mollusca (611 especies), Polychaeta (403) y Crustacea (370) corresponden a los grupos mejor representados a lo largo de la costa chilena, determinantes en el patrón global de la biodiversidad. Este aumenta suavemente de norte a sur, interrumpido por máximos que sugieren esfuerzos diferenciales de estudio más que un comportamiento natural de la biodiversidad. El grado de agrupamiento entre las zonas muestra las tres unidades biogeográficas definidas recientemente por Lancellotti & V ásquez. Este arreglo, que representa lo exhibido por los grupos más diversos, se ve alterado en los grupos menos representados donde las diferencias obedecen al patrón de afinidades mostradas por las zonas comprendidas dentro de la Región Templada Transicional. El quiebre zoogeográfico alrededor de los 41° S, sugerido largamente en la literatura, sólo ocurre en Echinodermata y Demospongiae, evidenciando en los otros taxa la existencia de un área de transición entre los 35° y 48° S, caracterizada por un reemplazo gradual de especies. -
Trophic Interactions and Food Web Structure of a Subantarctic Marine Food Web in the Beagle Channel: Bahı´A Lapataia, Argentina
Polar Biol DOI 10.1007/s00300-016-2007-x ORIGINAL PAPER Trophic interactions and food web structure of a subantarctic marine food web in the Beagle Channel: Bahı´a Lapataia, Argentina 1,2 3 4 1,2 Luciana Riccialdelli • Seth D. Newsome • Marilyn L. Fogel • Daniel A. Ferna´ndez Received: 26 May 2015 / Revised: 7 July 2016 / Accepted: 8 July 2016 Ó Springer-Verlag Berlin Heidelberg 2016 Abstract Basic ecological knowledge regarding the expected interactions among species based on independent importance of different sources of primary production and information. Using Bayesian isotope mixing models, we how it is transferred among consumer species is required to estimated that the proportional contribution of benthic properly manage and conserve subpolar ecosystems that production, in particular through grazing and the con- are particularly vulnerable to environmental changes. We sumption of detritus, was a more important source of used carbon (d13C) and nitrogen (d15N) stable isotope energy for primary and secondary consumers than pelagic analysis to establish a baseline of species interactions and production. Using stable isotope analysis to continually food web structure for the nearshore marine community in monitor species interactions and food web structure may Bahia Lapataia, Argentina, an ecosystem that faces many prove to be a valuable research and management tool for threats, including a recent invasion of exotic chinook sal- assessing ecological consequences of different threats in mon. Primary producers and other organic sources (e.g., this and other subpolar ecosystems. particulate organic matter) available to the food web were isotopically distinct and had a wide range in d13C(-31.3 to Keywords Food web Á Community structure Á Trophic -5.3 %) and d15N(-0.5 to 13.1 %) values. -
Biogeography of Crustacea and Mollusca of the Subantarctic and Antarctic Regions*
SCI. MAR., 63 (Supl. 1): 383-389 SCIENTIA MARINA 1999 MAGELLAN-ANTARCTIC: ECOSYSTEMS THAT DRIFTED APART. W.E. ARNTZ and C. RÍOS (eds.) Biogeography of Crustacea and Mollusca of the Subantarctic and Antarctic regions* ANGELIKA BRANDT, KATRIN LINSE and UTE MÜHLENHARDT-SIEGEL Zoological Institute and Zoological Museum, University of Hamburg, Martin-Luther-King-Platz 3, D-20146 Hamburg, Germany. SUMMARY: The Joint Magellan “Victor Hensen” Campaign in 1994 focused on the biogeographic relationships of the Antarctic and Magellan fauna. The Peracarida and Mollusca sampled at 18 stations in the Beagle Channel by means of an epibenthic sledge were compared with the knowledge about the distribution of species data from the Falkland Islands, South Georgia, Antarctica and the Kerguelen. Peracarida were an important fraction of the macrobenthos and sampled in high num- bers. About 105,000 individuals were collected with the epibenthic sledge. Until now about 40 species of Amphipoda, about 42 species of Isopoda, 24 species of Cumacea, eight species of Mysidacea, and 16 species of Tanaidacea were found. 118 mol- lusc taxa were identified, nine species of Aplacophora, 52 of Gastropoda, five of Scaphopoda and 52 of Bivalvia. Although the species present different distribution trends, the zoogeographic comparison for six larger taxa (four Mollusca and two Per- acarida) showed that the species similarities decreased from the Magellan region towards the Falkland Islands and from South Georgia to Antarctica. The Magellanic Gastropoda showed similarities with -
Growth and Production of the Venerid Bivalve Eurhomalea Exalbida in the Beagle Channel, Tierra Del Fuego
Journal of Sea Research 48 (2002) 209–216 www.elsevier.com/locate/seares Growth and production of the venerid bivalve Eurhomalea exalbida in the Beagle Channel, Tierra del Fuego Betina J. Lomovasky a,*, Thomas Brey b, Elba Morriconi a, Jorge Calvo a aCentro Austral de Investigaciones Cientı´ficas (CADIC- CONICET) C.C. 92 (V9410BFD) Ushuaia, Tierra del Fuego, Argentina bAlfred Wegener Institute for Polar and Marine Research, P.O. Box 120161, 27515 Bremerhaven, Germany Received 15 January 2002; accepted 4 March 2002 Abstract Growth, mortality and productivity of the hard clam Eurhomalea exalbida from Ushuaia Bay, Beagle Channel, were À 1 investigated. The parameters of the von Bertalanffy growth function were estimated to be Hl = 74 mm, K = 0.18 y ,t0 = 0.15 y. Maximum individual production amounted to 2.74 g shell-free wet mass (SFWM) at 49.5 mm shell height. Animals between 40 mm and 70 mm shell height contributed most to overall population somatic production P of 134 g SFWM m À 2 y À 1. Mean annual biomass B amounted to 1123 g SFWM m À 2 y À 1. Annual P/B ratio and mortality rate Z were estimated to be 0.12 y À 1 and 0.14 y À 1, respectively. Slow growth and low turnover make this population less suitable for sustainable commercial exploitation. D 2002 Elsevier Science B.V. All rights reserved. Keywords: Eurhomalea exalbida; Clams; Growth; Mortality; Production; Beagle Channel 1. Introduction (1995) assume that E. exalbida may be bycatch of the fishery on Ameginomya antiqua, another venerid, in The venerid Eurhomalea exalbida (Chemnitz, San Jose´ Golf (42j20VS, 64j30VW).