How Hermit Crabs Affect Gastropod Taphonomy 445
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GASTROPOD CARE SOP# = Moll3 PURPOSE: to Describe Methods Of
GASTROPOD CARE SOP# = Moll3 PURPOSE: To describe methods of care for gastropods. POLICY: To provide optimum care for all animals. RESPONSIBILITY: Collector and user of the animals. If these are not the same person, the user takes over responsibility of the animals as soon as the animals have arrived on station. IDENTIFICATION: Common Name Scientific Name Identifying Characteristics Blue topsnail Calliostoma - Whorls are sculptured spirally with alternating ligatum light ridges and pinkish-brown furrows - Height reaches a little more than 2cm and is a bit greater than the width -There is no opening in the base of the shell near its center (umbilicus) Purple-ringed Calliostoma - Alternating whorls of orange and fluorescent topsnail annulatum purple make for spectacular colouration - The apex is sharply pointed - The foot is bright orange - They are often found amongst hydroids which are one of their food sources - These snails are up to 4cm across Leafy Ceratostoma - Spiral ridges on shell hornmouth foliatum - Three lengthwise frills - Frills vary, but are generally discontinuous and look unfinished - They reach a length of about 8cm Rough keyhole Diodora aspera - Likely to be found in the intertidal region limpet - Have a single apical aperture to allow water to exit - Reach a length of about 5 cm Limpet Lottia sp - This genus covers quite a few species of limpets, at least 4 of them are commonly found near BMSC - Different Lottia species vary greatly in appearance - See Eugene N. Kozloff’s book, “Seashore Life of the Northern Pacific Coast” for in depth descriptions of individual species Limpet Tectura sp. - This genus covers quite a few species of limpets, at least 6 of them are commonly found near BMSC - Different Tectura species vary greatly in appearance - See Eugene N. -
Opportunistic Suspension Feeding in the Intertidal Gastropod Olivella Columellaris and Its Implications for the Regulation of Tidal Migrations
Ciencias Marinas (2016), 42(4): 289–294 Research Note/Nota de Investigación http://dx.doi.org/10.7773/cm.v42i4.2640 C M Opportunistic suspension feeding in the intertidal gastropod Olivella columellaris and its implications for the regulation of tidal migrations Alimentación suspensívora oportunista del gasterópodo intermareal Olivella columellaris y sus implicaciones en la regulación de las migraciones mareales Aaron P Morse1, Winfried S Peters2, 3* 1 Department of Geosciences, Indiana/Purdue University Fort Wayne, 2101 East Coliseum Boulevard, Fort Wayne, IN 46805, USA. 2 Department of Biology, Indiana/Purdue University Fort Wayne, 2101 East Coliseum Boulevard, Fort Wayne, IN 46805, USA. 3 Goldring-Gund Marine Biology Station, Playa Grande, Santa Cruz, Guanacaste, Costa Rica. * Corresponding author. E-mail: [email protected] ABSTRACT. The gastropod Olivella columellaris inhabits sandy beaches of the Tropical East Pacific. These snails perform tidal migrations for continuous suspension feeding in the moving backwash zone, possibly controlled by an endogenous circatidal clock. However, O. columellaris readily modifies its circatidal behavior, for example when flow channels develop below natural and artificial tide pools at ebb tide. Suspension feeding continues in such channels while water is running, delaying tidal migration. Such behavioral plasticity questions the significance of endogenous rhythms for the regulation of tidal migrations in O. columellaris. Key words: Olivella columellaris, sandy beach intertidal zone, underwater sailing locomotion, endogenous clock, tidal migration. RESUMEN. El gasterópodo Olivella columellaris habita las playas arenosas del Pacífico Oriental Tropical. Estos caracoles suelen realizar migraciones mareales ya que se alimentan de partículas en suspensión en la zona de resaca que se mueve con la marea. -
Benthic Invertebrate Community Monitoring and Indicator Development for Barnegat Bay-Little Egg Harbor Estuary
July 15, 2013 Final Report Project SR12-002: Benthic Invertebrate Community Monitoring and Indicator Development for Barnegat Bay-Little Egg Harbor Estuary Gary L. Taghon, Rutgers University, Project Manager [email protected] Judith P. Grassle, Rutgers University, Co-Manager [email protected] Charlotte M. Fuller, Rutgers University, Co-Manager [email protected] Rosemarie F. Petrecca, Rutgers University, Co-Manager and Quality Assurance Officer [email protected] Patricia Ramey, Senckenberg Research Institute and Natural History Museum, Frankfurt Germany, Co-Manager [email protected] Thomas Belton, NJDEP Project Manager and NJDEP Research Coordinator [email protected] Marc Ferko, NJDEP Quality Assurance Officer [email protected] Bob Schuster, NJDEP Bureau of Marine Water Monitoring [email protected] Introduction The Barnegat Bay ecosystem is potentially under stress from human impacts, which have increased over the past several decades. Benthic macroinvertebrates are commonly included in studies to monitor the effects of human and natural stresses on marine and estuarine ecosystems. There are several reasons for this. Macroinvertebrates (here defined as animals retained on a 0.5-mm mesh sieve) are abundant in most coastal and estuarine sediments, typically on the order of 103 to 104 per meter squared. Benthic communities are typically composed of many taxa from different phyla, and quantitative measures of community diversity (e.g., Rosenberg et al. 2004) and the relative abundance of animals with different feeding behaviors (e.g., Weisberg et al. 1997, Pelletier et al. 2010), can be used to evaluate ecosystem health. Because most benthic invertebrates are sedentary as adults, they function as integrators, over periods of months to years, of the properties of their environment. -
What Can We Learn from Confusing Olivella Columellaris and O
Biota Neotrop., vol. 12, no. 2 What can we learn from confusing Olivella columellaris and O. semistriata (Olivellidae, Gastropoda), two key species in panamic sandy beach ecosystems? Alison I. Troost1, Samantha D. Rupert1, Ariel Z. Cyrus1,. Frank V Paladino1,2, Benjamin F. Dattilo3 & Winfried S. Peters1,2,4 1Department of Biology, Indiana/Purdue University Fort Wayne, 2101 East Coliseum Boulevard, Fort Wayne, IN 46805‑1499, USA 2Goldring Marine Biology Station, Playa Grande, Santa Cruz, Guanacaste, Costa Rica 3Department of Geosciences, Indiana/Purdue University Fort Wayne, 2101 East Coliseum Boulevard, Fort Wayne, IN 46805‑1499, USA 4Corresponding author: Winfried S. Peters, e‑mail: [email protected] TROOST, A.I., RUPERT, S.D., CYRUS, A.Z., PALADINO, F.V., DATTILO, B.F. & PETERS, W.S. What can we learn from confusing Olivella columellaris and O. semistriata (Olivellidae, Gastropoda), two key species in panamic sandy beach ecosystems? Biota Neotrop. 12(2): http://www.biotaneotropica.org.br/v12n2/ en/abstract?article+bn02112022012 Abstract: Olivella columellaris (Sowerby 1825) and O. semistriata (Gray 1839) are suspension‑feeding, swash‑surfing snails on tropical sandy beaches of the east Pacific. While they often are the numerically dominant macrofaunal element in their habitats, their biology is poorly understood; the two species actually have been confused in all of the few publications that address their ecology. Frequent misidentifications in publications and collections contributed also to an overestimation of the geographic overlap of the two species. To provide a sound taxonomic basis for further functional, ecological, and evolutionary investigations, we evaluated the validity of diagnostic traits in wild populations and museum collections, and defined workable identification criteria. -
Morphology of Two Deep-Sea Olivella from the Southwestern Atlantic, with a Record of a Radula-Less Olivellinae Species (Neogastropoda: Olivoidea: Olividae)
Archiv für Molluskenkunde 150 (1) 31–43 Frankfurt am Main, 30 June 2021 Morphology of two deep-sea Olivella from the southwestern Atlantic, with a record of a radula-less Olivellinae species (Neogastropoda: Olivoidea: Olividae) Alexandre Dias Pimenta1 & Luiz Ricardo Lopes Simone2 1 Departamento de Invertebrados, Museu Nacional, Universidade Federal do Rio de Janeiro, Quinta da Boa Vista, São Cristóvão, 20940-040, Rio de Janeiro, Brazil ([email protected]). https://orcid.org/0000-0001-7001-5820 2 Museu de Zoologia da Universidade de São Paulo, Avenida Nazaré, 481, Ipiranga, 04263-000, São Paulo, Brazil ([email protected]). https://orcid.org/0000-0002-1397-9823 • Corresponding author: A.D. Pimenta. Abstract. Two deep-sea species from southeast Brazil, originally assigned to different subgenera ofOli - vella, are anatomically described. Olivella (Olivina) klappenbachi and Olivella (Anasser) careorugula, both described by Absalão & Pimenta (2003), present typical Olivellinae anatomy, with internal absorp tion of the shell wall and a non-spiralized visceral mass, the absence of a valve of Leiblein and gland of Leiblein, and a large cuticularized and muscular stomach. Olivella klappenbachi presents the typical radular morphology of Olivellinae, while Olivella careorugula lacks a radula and odontophore, which is unique among known olivids. A well-founded phylogenetic classification of Olivella at the generic/ subgeneric level is still lacking, and the numerous proposed subgenera are mostly based on the structure of the pillar. A broader taxonomic -
Alegria, Santa Barbara County, California May 26, 2001 Species List
PISCO Coastal Biodiversity Survey University of California Santa Cruz http://cbsurveys.ucsc.edu Please note: The information listed below is provided for your convenience. We ask that you please contact the SWAT Team ([email protected]) prior to using this information for any purpose. We make this request to: 1. Reduce redundancy; we may be currently working on projects that involve this information. 2. We would like to be informed of and involved in projects developed using this information. We have been careful to voucher any organisms that were difficult to identify in the field so that more detailed evaluation could be done in the lab. We are therefore confident that the identification of organisms listed below is reliable with the caveat that some sponges and tunicates are very difficult to identify to species without detailed histological evaluation, which we have not done. The number of cases where this could have been a problem is very small. For more information please visit our website above or link directly to our protocols at: http://cbsurveys.ucsc.edu/sampling/images/dataprotocols.pdf Alegria, Santa Barbara County, California May 26, 2001 Species list: Acanthinucella spp Lepidochitona dentiens Acrosorium ciliolatum Lepidochitona hartwegii Alia spp Littorina keenae Anthopleura elegantissima Littorina plena/scutulata Anthopleura sola Lottia austrodigitalis/digitalis Balanus glandula Lottia limatula Blue green algae Lottia paradigitalis/strigatella Bossiella spp Lottia pelta Brachidontes/Septifer spp Lottia scabra/conus Calliarthron -
Download Vol. 19, No. 2
0 X.' 1. ~ 494'*X' 4~ ·t _l of the FLORIDA STATE MUSEUM Biological Sciences Volume 19 1975 Number 2 DIVERSITY AND COMMUNITY STRUCTURE OF THE BRUSH CREEK MARINE INTERVAL (CONEMAUGH GROUP, UPPER PENNSYLVANIAN), IN THE APPALACHIAN BASIN OF WESTERN PENNSYLVANIA GRAIG D. SHAAK 2.1 4 .r , . - 7» 3 f Ij , f i:-S :; J. j . 1 I 2- r - * bA' f . 4..1.*LY' f~ - UNIVERSITY OF FLORIDA GAINESVILLE Numbers of the BULLETIN OF THE FLORIDA STATE MUSEUM, BIOLOGICAL SCIENCES, are published at irregular intervals. Volumes con- tain about 300 pages and are not necessarily completed in any one cal- endar year. CARTER R. GILBERT, Editor RHODA J. RYBAK, Managing Editor Consultants for this issue: GARRY G. ANDERSON DAVID NICOL Communications concerning purchase or exchange of the publications and all manuscripts should be addressed to the Managing Editor of the Bulletin, Florida State Museum, Museum· Road, University of Florida, Gainesville 32611. This public document was promulgated at an annual cost of $2,249.10 or $2.249 per copy. It makes available to libraries, scholars, and all interested persons the results of researches in the natural sciences, emphasizing the Circum-Caribbean region. Publication date: January 6, 1975 Price: $2.30 DIVERSITY AND COMMUNITY STRUCTURE OF THE BRUSH CREEK MARINE INTERVAL ( CONEMAUGH GROUP, UPPER PENNSYLVANIAN), IN THE APPALACHIAN BASIN OF WESTERN PENNSYLVANIA GRAIG D. SHAAKl SyNopsIs:. Nine Brush Creek localities ih western Pennsylvania were trench sampled for the purpose of recovering the total fauna from each visible marine horizon. The 9 localities provided 61 samples that were disaggregated by the Amine 220 tech- nique, washed, dried, and sieved into 305 individual samples. -
Marine Ecology Progress Series 464:135
Vol. 464: 135–151, 2012 MARINE ECOLOGY PROGRESS SERIES Published September 19 doi: 10.3354/meps09872 Mar Ecol Prog Ser Physical and biological factors affect the vertical distribution of larvae of benthic gastropods in a shallow embayment Michelle J. Lloyd1,*, Anna Metaxas1, Brad deYoung2 1Department of Oceanography, Dalhousie University, Halifax, Nova Scotia, Canada B3H 4R2 2Department of Physics and Physical Oceanography, Memorial University, St. John’s, Newfoundland, Canada A1B 3X7 ABSTRACT: Marine gastropods form a diverse taxonomic group, yet little is known about the factors that affect their larval distribution and abundance. We investigated the larval vertical dis- tribution and abundance of 9 meroplanktonic gastropod taxa (Margarites spp., Crepidula spp., Astyris lunata, Diaphana minuta, Littorinimorpha, Arrhoges occidentalis, Ilyanassa spp., Bittiolum alternatum and Nudibranchia), with similar morphology and swimming abilities, but different adult habitats and life-history strategies. We explored the role of physical (temperature, salinity, density, current velocities) and biological (fluorescence) factors, as well as periodic cycles (lunar phase, tidal state, diel period) in regulating larval vertical distribution. Using a pump, we collected plankton samples at 6 depths (3, 6, 9, 12, 18 and 24 m) at each tidal state, every 2 h over a 36 and a 26 h period, during a spring and neap tide, respectively, in St. George’s Bay, Nova Scotia. Con- currently, we measured temperature, salinity, density, fluorescence (as a proxy for chlorophyll, i.e. phytoplankton density), and current velocity. Larval abundance was most strongly related to tem- perature, except for Littorinimorpha and Crepidula spp., for which it was most strongly related to fluorescence. Margarites spp., A. -
New Records of the Rare Gastropods Erato Voluta and Simnia Patula, and First Record of Simnia Hiscocki from Norway
Fauna norvegica 2017 Vol. 37: 20-24. Short communication New records of the rare gastropods Erato voluta and Simnia patula, and first record of Simnia hiscocki from Norway Jon-Arne Sneli1 and Torkild Bakken2 Sneli J-A, and Bakken T. 2017. New records of the rare gastropods Erato voluta and Simnia patula, and first record of Simnia hiscocki from Norway. Fauna norvegica 37: 20-24. New records of rare gastropod species are reported. A live specimen of Erato voluta (Gastropoda: Triviidae), a species considered to have a far more southern distribution, has been found from outside the Trondheimsfjord. The specimen was sampled from a gravel habitat with Modiolus shells at 49–94 m depth, and was found among compound ascidians, its typical food resource. Live specimens of Simnia patula (Caenogastropoda: Ovulidae) have during the later years repeatedly been observed on locations on the coast of central Norway, which is documented by in situ observations. In Egersund on the southwest coast of Norway a specimen of Simnia hiscocki was in March 2017 observed for the first time from Norwegian waters, a species earlier only found on the south-west coast of England. Also this was documented by pictures and in situ observations. The specimen of Simnia hiscocki was for the first time found on the octocoral Swiftia pallida. doi: 10.5324/fn.v37i0.2160. Received: 2016-12-01. Accepted: 2017-09-20. Published online: 2017-10-26. ISSN: 1891-5396 (electronic). Keywords: Gastropoda, Ovulidae, Triviidae, Erato voluta, Simnia hiscocki, Simnia patula, Xandarovula patula, distribution, morphology. 1. NTNU Norwegian University of Science and Technology, Department of Biology, NO-7491 Trondheim, Norway. -
ECOLOGÍA DE “Oliva Bewleyi” (Marrat, 1870 )
ECOLOGÍA DE “Oliva bewleyi” (Marrat, 1870) (MOLLUSCA: GASTROPODA:OLIVIDAE) EN BAHÍA CONCHA, PARQUE NACIONAL NATURAL TAYRONA (PNNT), CARIBE COLOMBIANO DIANA CAROLINA TORRES PALACIO UNIVERSIDAD DE BOGOTÁ JORGE TADEO LOZANO FACULTAD DE CIENCIAS NATURALES PROGRAMA DE BIOLOGÍA MARINA BOGOTÁ D. C. 2008 ECOLOGÍA DE “Oliva bewleyi” (Marrat, 1870) (MOLLUSCA: GASTROPODA:OLIVIDAE) EN BAHÍA CONCHA, PARQUE NACIONAL NATURAL TAYRONA (PNNT), CARIBE COLOMBIANO DIANA CAROLINA TORRES PALACIO Director Juan Manuel Díaz Merlano Dr. rer. Nat Codirector Oscar Delgadillo Garzón Biólogo Marino, UJTL Coasesor Adolfo Sanjuán Muñoz Biólogo Marino, M.Sc. UNIVERSIDAD DE BOGOTÁ JORGE TADEO LOZANO FACULTAD DE CIENCIAS NATURALES PROGRAMA DE BIOLOGÍA MARINA BOGOTÁ D. C. 2008 ii Nota de Aceptación ____________________________ ____________________________ ____________________________ ____________________________ ____________________________ ____________________________ ____________________________ Firma del presidente del jurado ____________________________ Firma del jurado ____________________________ Firma del jurado iii Este trabajo está dedicado a mi familia por su amor, apoyo y paciencia. Y en este momento de mi vida, a Juan y a mi bebe Solé, por darle luz a mi vida. La perseverancia por alcanzar mi sueño de mar. iv AGRADECIMIENTOS Agradezco al creador del universo por darme vida y la oportunidad de poder disfrutar con toda la energía y amor, este trabajo de grado y en especial, de poder bucear mucho, del mar, la playa y el grupo de moluscos A mi familia, agradezco su apoyo incondicional, su paciencia, sabiduría, oportunidades y sobre todo su amor. Por que gracias a ellos he podido darme cuenta de mis errores, recuperar la confianza y así continuar con valor… Juan Manuel Díaz, más que un director ha sido como un papá, por su apoyo profesional y su amistad, por su gran paciencia y sobre todo por creer en mi y darme siempre la oportunidad. -
The Biology of Seashores - Image Bank Guide All Images and Text ©2006 Biomedia ASSOCIATES
The Biology of Seashores - Image Bank Guide All Images And Text ©2006 BioMEDIA ASSOCIATES Shore Types Low tide, sandy beach, clam diggers. Knowing the Low tide, rocky shore, sandstone shelves ,The time and extent of low tides is important for people amount of beach exposed at low tide depends both on who collect intertidal organisms for food. the level the tide will reach, and on the gradient of the beach. Low tide, Salt Point, CA, mixed sandstone and hard Low tide, granite boulders, The geology of intertidal rock boulders. A rocky beach at low tide. Rocks in the areas varies widely. Here, vertical faces of exposure background are about 15 ft. (4 meters) high. are mixed with gentle slopes, providing much variation in rocky intertidal habitat. Split frame, showing low tide and high tide from same view, Salt Point, California. Identical views Low tide, muddy bay, Bodega Bay, California. of a rocky intertidal area at a moderate low tide (left) Bays protected from winds, currents, and waves tend and moderate high tide (right). Tidal variation between to be shallow and muddy as sediments from rivers these two times was about 9 feet (2.7 m). accumulate in the basin. The receding tide leaves mudflats. High tide, Salt Point, mixed sandstone and hard rock boulders. Same beach as previous two slides, Low tide, muddy bay. In some bays, low tides expose note the absence of exposed algae on the rocks. vast areas of mudflats. The sea may recede several kilometers from the shoreline of high tide Tides Low tide, sandy beach. -
Scale and Structure of Time-Averaging (Age Mixing) in Terrestrial Gastropod Assemblages from Quaternary Eolian Deposits of the E
Palaeogeography, Palaeoclimatology, Palaeoecology 251 (2007) 283–299 www.elsevier.com/locate/palaeo Scale and structure of time-averaging (age mixing) in terrestrial gastropod assemblages from Quaternary eolian deposits of the eastern Canary Islands ⁎ Yurena Yanes a, , Michał Kowalewski a, José Eugenio Ortiz b, Carolina Castillo c, Trinidad de Torres b, Julio de la Nuez d a Department of Geosciences, Virginia Polytechnic Institute and State University, 4044 Derring Hall, Blacksburg, VA, 24061, US b Biomolecular Stratigraphy Laboratory, Escuela Técnica Superior de Ingenieros de Minas de Madrid, C/ Ríos Rosas 21, 28003, Madrid, Spain c Departamento de Biología Animal, Facultad de Biología, Universidad de La Laguna, Avda. Astrofísico Fco. Sánchez, s/n. 38206, La Laguna, Tenerife, Canary Islands, Spain d Departamento de Edafología y Geología, Facultad de Biología, Universidad de La Laguna, Avda. Astrofísico Fco. Sánchez, s/n. 38206, La Laguna, Tenerife, Canary Islands, Spain Received 13 November 2006; received in revised form 10 March 2007; accepted 9 April 2007 Abstract Quantitative estimates of time-averaging (age mixing) in gastropod shell accumulations from Quaternary (the late Pleistocene and Holocene) eolian deposits of Canary Islands were obtained by direct dating of individual gastropods obtained from exceptionally well-preserved dune and paleosol shell assemblages. A total of 203 shells of the gastropods Theba geminata and T. arinagae, representing 44 samples (=stratigraphic horizons) from 14 sections, were dated using amino acid (isoleucine) epimerization ratios calibrated with 12 radiocarbon dates. Most samples reveal a substantial variation in shell age that exceeds the error that could be generated by dating imprecision, with the mean within-sample shell age range of 6670 years and the mean standard deviation of 2920 years.