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(10 Y 50 M De Profundidad), Caribe Colombiano*
Bol. Invest. Mar. Cost. 39 (2) 397-416 ISSN 0122-9761 Santa Marta, Colombia, 2010 MOLUSCOS BENTÓNICOS DE LA GUAJIRA (10 Y 50 M DE PROFUNDIDAD), CARIBE COLOMBIANO* Erlenis Fontalvo Palacio 1, Adriana Gracia C. 1 y Guillermo Duque 2 1 Instituto de Investigaciones Marinas y Costeras “José Benito Vives De Andréis”-INVEMAR, Museo de Historia Natural Marina de Colombia (MHNMC), A.A.1016, Santa Marta, Colombia. erlenis_fontalvo@ invemar.org.co (E.F.), [email protected] (A.G.) 2 Universidad Nacional de Colombia, Facultad de Ingeniería y Administración, Departamento de Ingeniería, Ingeniería Ambiental, Carrera 32 Chapinero, Palmira, Colombia. [email protected]. edu.co RESUMEN Se estudi la composicin y abundancia de los moluscos bentnicos encontrados en el departamento de La Guajira al norte del Caribe colombiano. Para esto se realiz un crucero de investigacin a bordo del B/I Ancn del INVEMAR en donde se llevaron a cabo arrastres a 10 y 50 m de profundidad. Se recolect un total de 4840 individuos, identificndose 215 especies pertenecientes a las clases Gastropoda, Bivalvia, Scaphopoda, Cephalopoda y Polyplacophora, dentro de las cuales 19 fueron especies registradas por primera vez para el departamento. La clase Gastropoda present el mayor nmero de especies (52 %) y Bivalvia la mayor abundancia (71 % de los individuos), siendo el bivalvo Laevicardium sybariticum la especie ms abundante del rea de estudio. Los anlisis multivariados utilizados no mostraron patrones claramente definidos con relacin a la profundidad y el tipo de sedimento. PALABRAS CLAVE: Moluscos, Abundancia, Riqueza, La Guajira, Caribe colombiano. ABSTRACT Benthic mollusks of La Guajira (10 and 50 m depths), Colombian Caribbean. -
Cavallari Et Al. V5.Indd
ZOBODAT - www.zobodat.at Zoologisch-Botanische Datenbank/Zoological-Botanical Database Digitale Literatur/Digital Literature Zeitschrift/Journal: European Journal of Taxonomy Jahr/Year: 2016 Band/Volume: 0213 Autor(en)/Author(s): Cavallari Daniel C., Dornellas Ana Paula S., Simone Luiz Ricardo L. Artikel/Article: Second annotated list of type specimens of molluscs deposited in the Museu de Zoologia da Universidade de São Paulo, Brazil 1-59 European Journal of Taxonomy 213: 1–59 ISSN 2118-9773 http://dx.doi.org/10.5852/ejt.2016.213 www.europeanjournaloftaxonomy.eu 2016 · Cavallari D.C. et al. This work is licensed under a Creative Commons Attribution 3.0 License. Monograph urn:lsid:zoobank.org:pub:C1E8E726-9AB3-456A-97B2-A925A682DB52 Second annotated list of type specimens of molluscs deposited in the Museu de Zoologia da Universidade de São Paulo, Brazil Daniel C. CAVALLARI 1,*, Ana Paula S. DORNELLAS 2 & Luiz Ricardo L. SIMONE 3 1,2,3 Museu de Zoologia da Universidade de São Paulo, Cx. Postal 42494, 04218-970 São Paulo, SP, Brazil. * Corresponding author: [email protected] 2 Email: [email protected] 3 Email: [email protected] 1 urn:lsid:zoobank.org:author:D0D70348-AF5B-417F-91BC-43DF9951D895 2 urn:lsid:zoobank.org:author:B4162AEE-63BF-43D5-AABE-455AC51678BA 3 urn:lsid:zoobank.org:author:E66B5424-8F32-4710-B332-F35B9C8B84B0 Abstract. An alphabetical list of 352 type lots of molluscs housed in the Museu de Zoologia da Universidade de São Paulo is presented following the standards of the previous list by Dornellas & Simone (2011), with a few adjustments. Important items listed herein include types of species described after the previous compilation, as well as recently acquired paratypes of Asian Pomatiopsidae and Diplommatinidae (Gastropoda) taxa described by Rolf A.M. -
Moluscos Del Perú
Rev. Biol. Trop. 51 (Suppl. 3): 225-284, 2003 www.ucr.ac.cr www.ots.ac.cr www.ots.duke.edu Moluscos del Perú Rina Ramírez1, Carlos Paredes1, 2 y José Arenas3 1 Museo de Historia Natural, Universidad Nacional Mayor de San Marcos. Avenida Arenales 1256, Jesús María. Apartado 14-0434, Lima-14, Perú. 2 Laboratorio de Invertebrados Acuáticos, Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos, Apartado 11-0058, Lima-11, Perú. 3 Laboratorio de Parasitología, Facultad de Ciencias Biológicas, Universidad Ricardo Palma. Av. Benavides 5400, Surco. P.O. Box 18-131. Lima, Perú. Abstract: Peru is an ecologically diverse country, with 84 life zones in the Holdridge system and 18 ecological regions (including two marine). 1910 molluscan species have been recorded. The highest number corresponds to the sea: 570 gastropods, 370 bivalves, 36 cephalopods, 34 polyplacoforans, 3 monoplacophorans, 3 scaphopods and 2 aplacophorans (total 1018 species). The most diverse families are Veneridae (57spp.), Muricidae (47spp.), Collumbellidae (40 spp.) and Tellinidae (37 spp.). Biogeographically, 56 % of marine species are Panamic, 11 % Peruvian and the rest occurs in both provinces; 73 marine species are endemic to Peru. Land molluscs include 763 species, 2.54 % of the global estimate and 38 % of the South American esti- mate. The most biodiverse families are Bulimulidae with 424 spp., Clausiliidae with 75 spp. and Systrophiidae with 55 spp. In contrast, only 129 freshwater species have been reported, 35 endemics (mainly hydrobiids with 14 spp. The paper includes an overview of biogeography, ecology, use, history of research efforts and conser- vation; as well as indication of areas and species that are in greater need of study. -
Littorina Sitkana Philippi, 1846)
UVicSPACE: Research & Learning Repository _____________________________________________________________ Faculty of Science Faculty Publications _____________________________________________________________ Local site differences in survival and parasitism of periwinkles (Littorina sitkana Philippi, 1846) Mónica Ayala-Díaz, Jean M. L. Richardson, & Bradley R. Anholt 2017 © 2017 Ayala- Díaz et al. This is an open access article distributed under the terms of the Creative Commons Attribution License. http://creativecommons.org/licenses/by/4.0 This article was originally published at: https://doi.org/10.1002/ece3.2708 Citation for this paper: Ayala-Díaz, M.; Richardson, J. M. L.; & Anholt, B. R. (2017). Local site differences in survival and parasitism of periwinkles (Littorina sitkana Philippi, 1846). Ecology and Evolution, 7(4), 1021-1029. https://doi.org/10.1002/ece3.2708 Received: 7 August 2016 | Revised: 4 November 2016 | Accepted: 17 December 2016 DOI: 10.1002/ece3.2708 ORIGINAL RESEARCH Local site differences in survival and parasitism of periwinkles (Littorina sitkana Philippi, 1846) Mónica Ayala-Díaz1,2 | Jean M. L. Richardson1 | Bradley R. Anholt1,2 1Bamfield Marine Sciences Centre, Bamfield, BC, Canada Abstract 2Department of Biology, University of Victoria, The periwinkle, Littorina sitkana, is found throughout the intertidal zone, often in iso- Victoria, BC, Canada lated subpopulations. The majority of trematode parasites use snails as intermediate Correspondence hosts, and decreased survivorship is often observed in snails infected with trematodes. Mónica Ayala-Díaz, Bamfield Marine Sciences Sampling L. sitkana from four sites in Barkley Sound, British Columbia, Canada, we test Centre, Bamfield, BC, Canada. Email: [email protected] the effects of parasitic infection on snail survival using maximum likelihood and Bayesian approaches using the software MARK and WinBUGS. -
DOGAMI Open-File Report O-86-06, the State of Scientific
"ABLE OF CONTENTS Page INTRODUCTION ..~**********..~...~*~~.~...~~~~1 GORDA RIDGE LEASE AREA ....................... 2 RELATED STUDIES IN THE NORTH PACIFIC .+,...,. 5 BYDROTHERMAL TEXTS ........................... 9 34T.4 GAPS ................................... r6 ACKNOWLEDGEMENT ............................. I8 APPENDIX 1. Species found on the Gorda Ridge or within the lease area . .. .. .. .. .. 36 RPPENDiX 2. Species found outside the lease area that may occur in the Gorda Ridge Lease area, including hydrothermal vent organisms .................................55 BENTHOS THE STATE OF SCIENTIFIC INFORMATION RELATING TO THE BIOLOGY AND ECOLOGY 3F THE GOUDA RIDGE STUDY AREA, NORTZEAST PACIFIC OCEAN: INTRODUCTION Presently, only two published studies discuss the ecology of benthic animals on the Gorda Sidge. Fowler and Kulm (19701, in a predominantly geolgg isal study, used the presence of sublittor31 and planktsnic foraminiferans as an indication of uplift of tfie deep-sea fioor. Their resuits showed tiac sedinenta ana foraminiferans are depositea in the Zscanaba Trough, in the southern part of the Corda Ridge, by turbidity currents with a continental origin. They list 22 species of fararniniferans from the Gorda Rise (See Appendix 13. A more recent study collected geophysical, geological, and biological data from the Gorda Ridge, with particular emphasis on the northern part of the Ridge (Clague et al. 19843. Geological data suggest the presence of widespread low-temperature hydrothermal activity along the axf s of the northern two-thirds of the Corda 3idge. However, the relative age of these vents, their present activity and presence of sulfide deposits are currently unknown. The biological data, again with an emphasis on foraminiferans, indicate relatively high species diversity and high density , perhaps assoc iated with widespread hydrotheraal activity. -
(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. -
Foregut Anatomy of the Cochlespirinae (Gastropoda, Conoidea, Turridae)
Foregut anatomy of the Cochlespirinae (Gastropoda, Conoidea, Turridae) Alexandra I. MEDINSKAYA A. N. Severtzov Institute of Problems of Evolution, Leninsky Prospect 33, Moscow 117071 (Russia) Medinskaya A. I. 1999. — Foregut anatomy of the Cochlespirinae (Gastropoda. Conoidea. Turridae). Zoosystema2\ (2): 171-198. ABSTRACT The foregut anatomy of 20 species, belonging to eight genera, of the sub family Cochlespirinae is described. A cladistic analysis based on several most important characters (morphology of proboscis, position of buccal sphinc ters, histology of venom gland, position of the venom gland opening, struc ture of muscular bulb, and morphology of radular teeth) revealed three more or less well-defined groups within the subfamily. The main feature characte rizing the subfamily as a whole and separating groups within it, appeared to be the structure of venom gland and its muscular bulb. The subgenus KEYWORDS Cochlespirinae, Sibogasyrinx of the genus Leucosyrinx was shown to deserve a genus status. Conoidea, Some genera appeared to be intermediate between Cochlespirinae and anatomy, foregut, Crassispirinae in some anatomical characters, and their taxonomic position histology. remains not completely clear. RESUME L'anatomie du système digestif des Cochlespirinae (Gastropoda, Conoidea, Turridae). L'anatomie du système digestif de 20 espèces, appartenant à huit genres de la sous-famille Cochlespirinae, est étudiée. Une analyse cladistique, fondée sur les plus importants caractères de ce groupe (la morphologie de la trompe, la disposition des sphincters, l'histologie de la glande à venin, la disposition de l'ouverture de la glande à venin, la structure de la poire musculaire et la mor phologie des dents de la radula) a permis de distinguet trois groupes plus ou moins homogènes. -
Freshwater Mussel Survey of Clinchport, Clinch River, Virginia: Augmentation Monitoring Site: 2006
Freshwater Mussel Survey of Clinchport, Clinch River, Virginia: Augmentation Monitoring Site: 2006 By: Nathan L. Eckert, Joe J. Ferraro, Michael J. Pinder, and Brian T. Watson Virginia Department of Game and Inland Fisheries Wildlife Diversity Division October 28th, 2008 Table of Contents Introduction....................................................................................................................... 4 Objective ............................................................................................................................ 5 Study Area ......................................................................................................................... 6 Methods.............................................................................................................................. 6 Results .............................................................................................................................. 10 Semi-quantitative .................................................................................................. 10 Quantitative........................................................................................................... 11 Qualitative............................................................................................................. 12 Incidental............................................................................................................... 12 Discussion........................................................................................................................ -
Miller L. P. & M. W. Denny. (2011)
Reference: Biol. Bull. 220: 209–223. (June 2011) © 2011 Marine Biological Laboratory Importance of Behavior and Morphological Traits for Controlling Body Temperature in Littorinid Snails LUKE P. MILLER1,* AND MARK W. DENNY Hopkins Marine Station, Stanford University, Pacific Grove, California 93950 Abstract. For organisms living in the intertidal zone, Introduction temperature is an important selective agent that can shape species distributions and drive phenotypic variation among Within the narrow band of habitat between the low and populations. Littorinid snails, which occupy the upper limits high tidemarks on seashores, the distribution of individual of rocky shores and estuaries worldwide, often experience species and the structure of ecological communities are extreme high temperatures and prolonged aerial emersion dictated by a variety of biotic and abiotic factors (Connell, during low tides, yet their robust physiology—coupled with 1961, 1972; Lewis, 1964; Paine, 1974; Dayton, 1975; morphological and behavioral traits—permits these gastro- Menge and Branch, 2001). Biological interactions such as pods to persist and exert strong grazing control over algal predation, competition, and facilitation play out on a back- communities. We use a mechanistic heat-budget model to ground of constantly shifting environmental conditions driven primarily by the action of tides and waves (Stephen- compare the effects of behavioral and morphological traits son and Stephenson, 1972; Denny, 2006; Denny et al., on the body temperatures of five species of littorinid snails 2009). Changes in important environmental parameters under natural weather conditions. Model predictions and such as light, temperature, and wave action can alter the field experiments indicate that, for all five species, the suitability of the habitat for a given species at both small relative contribution of shell color or sculpturing to temper- and large spatial scales (Wethey, 2002; Denny et al., 2004; ature regulation is small, on the order of 0.2–2 °C, while Harley, 2008). -
ABSTRACT Title of Dissertation: PATTERNS IN
ABSTRACT Title of Dissertation: PATTERNS IN DIVERSITY AND DISTRIBUTION OF BENTHIC MOLLUSCS ALONG A DEPTH GRADIENT IN THE BAHAMAS Michael Joseph Dowgiallo, Doctor of Philosophy, 2004 Dissertation directed by: Professor Marjorie L. Reaka-Kudla Department of Biology, UMCP Species richness and abundance of benthic bivalve and gastropod molluscs was determined over a depth gradient of 5 - 244 m at Lee Stocking Island, Bahamas by deploying replicate benthic collectors at five sites at 5 m, 14 m, 46 m, 153 m, and 244 m for six months beginning in December 1993. A total of 773 individual molluscs comprising at least 72 taxa were retrieved from the collectors. Analysis of the molluscan fauna that colonized the collectors showed overwhelmingly higher abundance and diversity at the 5 m, 14 m, and 46 m sites as compared to the deeper sites at 153 m and 244 m. Irradiance, temperature, and habitat heterogeneity all declined with depth, coincident with declines in the abundance and diversity of the molluscs. Herbivorous modes of feeding predominated (52%) and carnivorous modes of feeding were common (44%) over the range of depths studied at Lee Stocking Island, but mode of feeding did not change significantly over depth. One bivalve and one gastropod species showed a significant decline in body size with increasing depth. Analysis of data for 960 species of gastropod molluscs from the Western Atlantic Gastropod Database of the Academy of Natural Sciences (ANS) that have ranges including the Bahamas showed a positive correlation between body size of species of gastropods and their geographic ranges. There was also a positive correlation between depth range and the size of the geographic range. -
Complex Male Mate Choice in Marine Snails Littorina
Complex Male Mate Choice in Marine Snails Littorina Sara Hintz Saltin Licentiate thesis Department of Marine Ecology University of Gothenburg Till Mamma, Pappa och Hanna Abstract The ability to recognise potential mates and choose the best possible mating-partner is of fundamental importance for most animal species. This thesis presents studies of male mate choice within the genus Littorina. Males of this genus are sometimes observed to initiate mating with other males or with females of other species. How such suboptimal mating patterns can evolve is the theme of this thesis. In one study we investigated pre-copulatory- and copulation behaviour in L. fabalis and between this species and its sister-species L. obtusata. We found that males preferred to mount and mate with large and more fecund females rather than small females. Males also preferred to track the largest females mucus trails even though these were trails from another species (L. obtusata) although cross-matings were interrupted before completion. In a second study we found that males of three species (L. littorea, L. fabalis and L. obtusata) preferentially followed female trails. This suggests that females add a “gender cue” in the mucus. In the forth species, L. saxatilis, males followed male and female trails at random. Along with experimental evidence for high mating costs and abilities for male L. saxatilis to detect females of a related species, this suggests a sexual conflict over mating frequency. To reduce number of matings females avoid advertising their sex by disguise their mucus. The reason for the different species strategies is that L. -
The Causal Relationship Between Sexual Selection and Sexual Size Dimorphism in Marine Gastropods
Title Document The causal relationship between sexual selection and sexual size dimorphism in marine gastropods Terence P. T. Ng1,a, Emilio Rolán-Alvarez2,3,a, Sara Saltin Dahlén4, Mark S. Davies5, Daniel Estévez2, Richard Stafford6, Gray A. Williams1* 1 The Swire Institute of Marine Science and School of Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China 2 Departamento de Bioquímica, Genética e Inmunología, Facultad de Biología, Universidad de Vigo, 36310 Vigo Spain 3 Centro de Investigación Mariña da Universidade de Vigo 4 Department of Marine Sciences - Tjärnö, University of Gothenburg, SE-452 96 Strömstad, Sweden 5 Faculty of Applied Sciences, University of Sunderland, Sunderland, U.K. 6 Faculty of Science and Technology, Bournemouth University, U.K. a Contributed equally to this work *Correspondence: Gray A. Williams, The Swire Institute of Marine Science, The University of Hong Kong, Pokfulam Road, Hong Kong E-mail: [email protected] Telephone: (852) 2809 2551 Fax: (852) 2809 2197 Author contribution. TPTN obtained data from all species except L. fabalis and contributed to data analysis, SHS contributed to sampling Swedish littorinids, MSD, RS and GAW to sampling HK littorinids, DE to Spanish samples, and ER-A contributed to Spanish sampling and data analysis. Developing the MS was led by TPTN, ER-A and GAW and all authors contributed to writing the MS and gave final approval for submission. Competing interests. We declare we have no competing interests. Acknowledgements. Permission to work at the Cape d' Aguilar Marine Reserve was granted by the Agriculture, Fisheries and Conservation Department of the Hong Kong SAR Government (Permit No.: (116) in AF GR MPA 01/5/2 Pt.12).