DOCSLIB.ORG

Ing in a Number of Bivalve Species by Injection of Serotonin Solution

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text

Load more

;. C.M. 1985/F:61 Mariculture Committee/ A RAPID METHOD TO INDUCE SPA\~ING IN A NUMBER OF BIVALVE SPECIES BY INJECTION OF SEROTONIN SOLUTION l l 2 M. Castagna • M. C. Gibbons and J. Goodsell lVirginia Institute of Marine Science, School of Marine Science, College cf William and Mary Eastern Shore Laboratory. Wachapreague, VA 23480. 2Rutgers Shellfish Research Laboratory. P.O. Box 587, Port Norris, NJ 08349. ABSTRACT Injection of serotonin (5-hydroxytryptamine, creatinine sulfate complex) • solution was used to induce spawning in a number of bivalve species. Studies at the Virginia Institute of Marine Science demonstrated that intergonadal injection induced spawning in Argopecten irradians, Crassostrea virginica, Mercenaria mercenaria and Spisula solidissima. Intermuscular injection of serotonin solution induced spawning of Arctica islandica, Chione cancellata, Cyrtopleura costata, Geukensia demissa, Hiatella arctica, Mercenaria mercenaria, Mesodesma arctatum, Mya arenaria, Mya truncata, Mytilus edulis and Rangia cuneata. \"'., ... -2- Patinopecten yessoensis, Patinopecten caurinus, Hinnites multirugosus, Argopecten circularis, Pinctada mazatlantica, Protothaca asperrima, Ensis sp., Tridacna gigas, Tridacna derasa, Tridacna crocea, Hippopus hippopus have also been induced to spawn by injection of serotonin (Hatsutani and Nomura, 1982; personal communication - Neil Boume, Pacific Biological Station, Nanaimo, B.C., Canada; John W. Ewart, University of Delaware, School of Marine Science, Lewes, Delaware, USA; and Richard D. Braley, 4It School of Zoology, University of South Wales, P.O. Box 1, Kensington, New South Wales 2033, Australia). Concentration of serotonin was 0.2 to 2.0 mM solution with 2.0 ~1 most eommonly used. Dosages were adjusted to size of the specimen with 0.4 ml used for average sized 4 to 8 cm in length oysters or elams. Symptomatic behavior was observed almost immediately following injection of the solution. Spawning usually began within 15 minutes. I NTRODUCTI ON Many methods of indueing bivalve mollusks to spawn have been described. • Temperature cyeling and the addition of sperm or ova are the most eommonly used methods (Loosanoff and Davis, 1963). The chemical serotonin, 5-hydroxytryptamine (5-BT), has been shown to be an effeetive inducer of spawning for many bivalves (Matsutani and Nomura, 1982; Gibbons et al., in press; Gibbons and Castagna, 1984). Injection of serotonin into the gonad or adductor museie of ripe bivalves will often induee spawning without additional stimuli. ~1ale bivalves respond and spawn in greater number than females treated with serotonin, and unripe individuals who cannot spawn will display the usual behavioral response to thc serotonin. ..L.... .....,.,.'.:.•,,·,4 .~ -3- Serotonin is a neurotransmitter naturally occurring in the nervous system of mollusks (I'lelsh and Moorhead, 1960). It stimulates heart beating and ciliary beating of gills in bivalves (Leake and Walker, 1980). However, the role of serotonin in spawning of bivalves is unknown. Studies were carried out to test the effectiveness of serotonin on different species. MATERIALS AND METHODS • Serotonin (S-hydroxytryptamine, ereatinine sulfate eomplex) was dissolved in 1 pm fi1tered seawater to the desired eoneentration before use. Onee a solution is mixed it is kept refrigerated since it deteriorates at room temperature or in light. Matsutani and Nomura (1982) found the optimal eoncentration for Patinopecten yessoensis was 2 Illi-l so this was the· concentration common1y used. When using this chemica1, the biva1ves to be spawned are either placed in individual dishes or in a common spawning trough filled with filtered seawater. The serotonin was injected either into the gonad or into the • adductor museie or on occasion into the foot. A new needle was used for each bivalve to prevent transference of gonadal products, blood, or other tissue which may act as a stimuli. A small nick was made into the edge of the shell to allow insertion of the needle in species which close tightly such as oysters. This was accomp1ished with a sma11 stee1 file. Most of the bivalves were injected with 0.4 ml of 2 mr-t solution. I'lhen smaller sized .species were used such as Mulinia lateralis, a smaller amount was injected. All controls were injected with the same amount of 1 pm filtered seawater as the test animals. / -4- Testsofindependence using the g-statistic and Williams correction for a 2 x 2 contingency table were conducted to determine whether or not spawning and injection with serotonin were independent (SokaI and Rohlf, 1981). The level of statistical reference was chosen to be 0(. = 0.01. RE SU LTS In these studies, serotonin was effective in inducing spawning in 83% 4It of bay scallops Argopecten irradians, 70% of oysters Crassostrea virginica, 60% of surf clams Spisula solidissima, 45% of ribbed musseIs Geukensia demissa, 45% of hard clams Mercenaria mercenaria and 27% of ocean quahogs Arctica islandica. In these bivalves males were much more sensitive to serotonin since they predominated the spawners. For the hermaphroditic bay scallops, 97% released sperm while for dioecious bivalves between 67 and 100% of the spawners in each test lot were males. This data was not extracted from tests with other species due to insufficent numbers of spawners. Reaction of ripe male bivalves to serotonin is almost immediate. • Oysters gaped and spawned as quickly as 2-5 minutes after injection and most of them had spawned within 30 minutes. Ribbed musseIs spawned within 15 minutes. The behavior of biva1ves injected with serotonin was to extend the foot and probe the bottom, gape and usually pump more vigorous1y. All broodstock survived the stress of injection with serotonin solution or the filtered seawater used for the controls. Often the notches in the shell showed new growth within one week. .. -5- The authors successfully demonstrated that intergonadal or inter­ muscular injection of serotonin solution induced spawning in 14 species (Table I).' It was not successful in two species of blood arks, Noetia ponderosa and Anadara ovalis. 80th species released quantities of blood cells but no gonadal products were observed. Other investigators have reported that injection of serotonin solution successfully induced spawning in 11 additional species (Table 11). Spawning induced by serotonin has the advantages of ease of application, does not require temperature cycling, and speed and synchronization of induction. Serotonin may also be used to successfully induce spawning in other bivalves which cannot be spawned using traditional spawning stimuli . • . -6- LITERATURE CITED Boume, Nei1. Personal communication. Bra1ey, Richard D. Personal communication. Ewart, John W. Personal communication. Gibbons, M.C., J.G. Goodse11, M. Castagna, and R.A. Lutz. Chemica1 induction of spawning by serotonin in the ocean quahog Arctica is1andica. J. of She11fish Research. In press. Gibbons, M.C. and M.. Castagna. 1984. Serotonin as an inducer of spawning in six biva1ve species. Aquacu1ture 40: 189-191. Leake, L.D. and R.J. Walker. 1980. Invertebrate Neuropharmaco1ogy. John Wi1ey, New York, pp. 102-143. Loosanoff, V.L. and H.C. Davis. 1963. Rearing of biva1ve mo11usks. Adv. Mar. Bio1. 1: 1-136. Matsutani, T. and T. Nomura. 1982. Induction of spawning by serotonin in the sca110p Patinopecten yessoensis (Jay). Mar. Bio1. Lett. 3: 353-358. Soka1, R.R. and F.J. Roh1f. 1981. Biometry. W.H. Freeman, San Francisco, CA, 2nd edition, 859 pp . • We1sh, J.H. and M. Moorhead. 1960. The quantitative distribution of 5­ hydroxytryptamine in the invertebrates, especia11y in their nervous systems. J. Neurochem. 6: 146-169. · . Table I. Species of bivalves induced to spawn by injection with serotonin. Common Name Scientific Name ocean quahog Arctica islandica bay scallop Argopecten irradians cross-barred venus Chione cancellata American oyster Crassostrea virginica angel wing Cyrtopleura costata ribbed musseI Geukensia demissa arctic rock borer Hiatella arctica hard clam Mercenaria mercenaria arctic wedge clam Mesodesma arctatum soft-shell clam Mya arenaria truncate soft-shell clam Mya truncata blue musseI MytHus edulis common rangia Rangia cuneata surf clam Spisula solidissima · . Tab1e 11. Additional species of biva1ves induced to spawn by injection with serotonin. Species Reported by Patinopecten yessoensis Matsutani and Nomura. 1982 Patinopecten caurinus Nei1 Bourne. personal communication Hinnites mu1tirugosus Nei1 Boume, personal communication Argopecten circu1aris John W. Ewart, personal communication Pinctada mazat1antica John W. Ewart. personal communication Protothaca asperrima John W. Ewart, personal communication Ensis sp. John W. Ewart, personal communication Tridacna gigas Richard D. Bra1ey, personal communication Tridacna derasa Richard D. Bra1ey, personal communication Tridacna crocea Richard D. Bra1ey. personal communication Hippopus hippopus Richard D. Braley, personal communication.
Recommended publications
  • Chec List Bivalves of the São Sebastião Channel, North Coast Of

    Chec List Bivalves of the São Sebastião Channel, North Coast Of

    Check List 10(1): 97–105, 2014 © 2014 Check List and Authors Chec List ISSN 1809-127X (available at www.checklist.org.br) Journal of species lists and distribution Bivalves of the São Sebastião Channel, north coast of the PECIES S São Paulo State, Brazil OF Lenita de Freitas Tallarico 1*, Flávio Dias Passos 2, Fabrizio Marcondes Machado 3, Ariane Campos 1, ISTS 1 1,4 L Shirlei Maria Recco-Pimentel and Gisele Orlandi Introíni 1 Universidade Estadual de Campinas, Instituto de Biologia, Departamento de Biologia Estrutural e Funcional. R. Charles Darwin, s/n - Bloco N, Caixa Postal 6109. CEP 13083-863. Campinas, SP, Brazil. 2 Universidade Estadual de Campinas, Instituto de Biologia, Departamento de Biologia Animal. Rua Monteiro Lobato, 255, Caixa Postal 6109. CEP 13083-970. Campinas, SP, Brazil. 3 Programas de Pós-Graduação em Ecologia e Biologia Animal, Instituto de Biologia, Universidade Estadual de Campinas. R. Bertrand Russell, s/n, Caixa Postal 6109, CEP 13083-970. Campinas, SP, Brazil. 4 Universidade Federal de Ciências da Saúde de Porto Alegre, Departamento de Ciências Básicas da Saúde. R. Sarmento Leite, 245. CEP 90050-170. Porto Alegre, RS, Brazil. * Corresponding author. E-mail: [email protected] Abstract: The north coast of the São Paulo State, Brazil, presents great bivalve diversity, but knowledge about these organisms, especially species living subtidally, remains scarce. Based on collections made between 2010 and 2012, the present work provides a species list of bivalves inhabiting the intertidal and subtidal zones of the São Sebastião Channel. Altogether, 388 living specimens were collected, belonging to 52 species of 34 genera, grouped in 18 families.
  • Paleoenvironmental Interpretation of Late Glacial and Post

    Paleoenvironmental Interpretation of Late Glacial and Post

    PALEOENVIRONMENTAL INTERPRETATION OF LATE GLACIAL AND POST- GLACIAL FOSSIL MARINE MOLLUSCS, EUREKA SOUND, CANADIAN ARCTIC ARCHIPELAGO A Thesis Submitted to the College of Graduate Studies and Research in Partial Fulfillment of the Requirements for the Degree of Master of Science in the Department of Geography University of Saskatchewan Saskatoon By Shanshan Cai © Copyright Shanshan Cai, April 2006. All rights reserved. i PERMISSION TO USE In presenting this thesis in partial fulfillment of the requirements for a Postgraduate degree from the University of Saskatchewan, I agree that the Libraries of this University may make it freely available for inspection. I further agree that permission for copying of this thesis in any manner, in whole or in part, for scholarly purposes may be granted by the professor or professors who supervised my thesis work or, in their absence, by the Head of the Department or the Dean of the College in which my thesis work was done. It is understood that any copying or publication or use of this thesis or parts thereof for financial gain shall not be allowed without my written permission. It is also understood that due recognition shall be given to me and to the University of Saskatchewan in any scholarly use which may be made of any material in my thesis. Requests for permission to copy or to make other use of material in this thesis in whole or part should be addressed to: Head of the Department of Geography University of Saskatchewan Saskatoon, Saskatchewan S7N 5A5 i ABSTRACT A total of 5065 specimens (5018 valves of bivalve and 47 gastropod shells) have been identified and classified into 27 species from 55 samples collected from raised glaciomarine and estuarine sediments, and glacial tills.
  • Performance of the New England Hydraulic Dredge for the Harvest Of'stimpson~Surf Clams

    Performance of the New England Hydraulic Dredge for the Harvest Of'stimpson~Surf Clams

    PERFORMANCE OF THE NEW ENGLAND HYDRAULIC DREDGE FOR THE HARVEST OF'STIMPSON~SURF CLAMS Inv d Experimental Biology Division*. Deparhnent of Fisheries and Oceans Canada Maurice Lamontagne Instihite 850 route de la Mer f O00 Mont-Joli (~uébec) G5H 324 Canadian Industry Report of isheries and Aquatic Sciences 235 ? nadian Industry Report of Fisheries and Aquatic Sciences canaain the ~e?iaIts:Bf ramh and develotrment iradustq fof MkF irnmedia~elar Iutuw1appdkashn. They are da.r.ected pfimarbly tmard indiziduak .h $ha primary and secondary çccrors of the fishing and marine mduaries. ?i,o ratlrMhn k phced on sulbjmt mcta and the series reflects the broad inoemrs and p~2ek5&oh Department d Fisher& and Oceans. aamely. fishiesad aqwticsc+awe~,. .' 1t@u~rr5reprts m. be cimed & full pnsblicatbns. The cornkt citatian aowars . abri the abatracr of each report. Eacb rekl is a&rrxad in Awair %ie.nr& ifid . technical publicatio . Sumber;l-9li e lndustrial Devel- opsnent BranCh. Technical Reports of th. lndiausrrkf ikxelo~mentÉranch. a& - ,Tecknical Reports of the &-sk*an's Servk Branch. kumkrs 62- I tO Giztaisseed as . Dapan~enzof Fishsies and the Em-i~onment.Fisher& and Màrine Service fndustry Reports. The current ysies name kas chmgel ~ithreport number 111. lndwsrr! reports are produc& rqiortdk bur are numkred nationrtlty. Requests .for indi\ idual rqporfs w il1 be fifkd by the issuing~rqblishmentl~tcdon the front cûvw and title page. Out-of-stwk feports-will k svpplied for fw? b'J; commacia~agents. Les rapporis 4 1'indlasrrk am t knmf k résultats des acîivitis de mher&c et de diveloppern-enl qui peuvent &se utiles a I'industrie gour des applications immédiates ou fatures.
  • Circular 162. the Soft-Shell Clam

    Circular 162. the Soft-Shell Clam

    HE OFT­ iHELL 'LAM UNITED STATES DEPARTMENT 8F THE INTERIOR FISH AND WILDLIFE SERVICE BUREAU OF COMMERCIAL FISHERIES Circular 162 CONTENTS Page 1 Intr oduc tion. • • • . 2 Natural history • . ~ . 2 Distribution. 3 Taxonomy. · . Anatomy. • • • •• . · . 3 4 Life cycle. • • • • • . • •• Predators, diseases, and parasites . 7 Fishery - methods and management .•••.••• • 9 New England area. • • • • • . • • • • • . .. 9 Chesapeake area . ........... 1 1 Special problem s of paralytic shellfish poisoning and pollution . .............. 13 Summary . .... 14 Acknowledgment s •••• · . 14 Selected bibliography •••••• 15 ABSTRACT Describes the soft- shell cla.1n industry of the Atlantic coast; reviewing past and present economic importance, fishery methods, fishery management programs, and special problems associated with shellfish culture and marketing. Provides a summary of soft- shell clam natural history in- eluding distribution, taxonomy, anatomy, and life cycle. l THE SOFT -SHELL CLAM by Robert W. Hanks Bureau of Commercial Fisheries Biological Labor ator y U.S. Fish and Wildlife Serv i c e Boothbay Harbor, Maine INTRODUCTION for s a lted c l a m s used as bait by cod fishermen on t he G r and Bank. For the next The soft-shell clam, Myaarenaria L., has 2 5 years this was the most important outlet played an important role in the history and for cla ms a nd was a sour ce of wealth to economy of the eastern coast of our country . some coastal communities . Many of the Long before the first explorers reached digg ers e a rne d up t o $10 per day in this our shores, clams were important in the busin ess during October to March, when diet of some American Indian tribes.
  • The Impact of Hydraulic Blade Dredging on a Benthic Megafaunal Community in the Clyde Sea Area, Scotland

    The Impact of Hydraulic Blade Dredging on a Benthic Megafaunal Community in the Clyde Sea Area, Scotland

    Journal of Sea Research 50 (2003) 45–56 www.elsevier.com/locate/seares The impact of hydraulic blade dredging on a benthic megafaunal community in the Clyde Sea area, Scotland C. Hauton*, R.J.A. Atkinson, P.G. Moore University Marine Biological Station Millport (UMBSM), Isle of Cumbrae, Scotland, KA28 0EG, UK Received 4 December 2002; accepted 13 February 2003 Abstract A study was made of the impacts on a benthic megafaunal community of a hydraulic blade dredge fishing for razor clams Ensis spp. within the Clyde Sea area. Damage caused to the target species and the discard collected by the dredge as well as the fauna dislodged by the dredge but left exposed at the surface of the seabed was quantified. The dredge contents and the dislodged fauna were dominated by the burrowing heart urchin Echinocardium cordatum, approximately 60–70% of which survived the fishing process intact. The next most dominant species, the target razor clam species Ensis siliqua and E. arcuatus as well as the common otter shell Lutraria lutraria, did not survive the fishing process as well as E. cordatum, with between 20 and 100% of individuals suffering severe damage in any one dredge haul. Additional experiments were conducted to quantify the reburial capacity of dredged fauna that was returned to the seabed as discard. Approximately 85% of razor clams retained the ability to rapidly rebury into both undredged and dredged sand, as did the majority of those heart urchins Echinocardium cordatum which did not suffer aerial exposure. Individual E. cordatum which were brought to surface in the dredge collecting cage were unable to successfully rebury within three hours of being returned to the seabed.
  • Induccion Al Desove Y Desarrollo Larval Del Molusco Bivalvo Chione Cancellata

    Induccion Al Desove Y Desarrollo Larval Del Molusco Bivalvo Chione Cancellata

    Induccion al Desove y Desarrollo Larval del Molusco Bivalvo Chione cancellata JOSE RENGEL1, LUGO GUELMELIT2, LUIS TORRES2, y CARL HOLUIS MARIN 1Universidad Nacional Experimental Francisco De Complejo Docente El Sabino, Prolongacion Tachira, Sector Universita- rio Punto Fijo, Falcon 4102 Venezuela. 2Universidad Nacional Experimental Francisco De Miranda, Programa De Ing. Pesquera Complejo Docente El Sabino, Prolongacion Tachira, Sector Universidad, Punto Fijo, Falcon 4102 Venezuela RESUMEN El guacuco, Chione cancellata, es una de las especies de moluscos bivalvos de mayor importancia comercial en la costas de la Bahía de Amuay. La mayoría de los pobladores de la zona, viven de su extracción y comercialización. Hasta el momento no se tienen información sobre el desarrollo larval de esta especie, para ser explotado en un futuro cultivo. Por tal motivo, se realizó la inducción al desove de este molusco, utilizando como técnica el choque térmico y descripción de su desarrollo larval. Se obtuvo con éxito el desove después de tres horas de tratamiento térmico y los embriones obtenidos, fueron colocadas y mantenidas en recipientes de 18 L con 15 L de agua de mar filtrada y esterilizadas a 35 UPS y temperatura promedio de 27 ºC, con recambio del 100 % del agua, cada 24 horas. Las larvas se alimentaron con la microalgas Chaetoceros calcitrans, Nannocloropsis sp., y Tretaselmis sp a una concentración de 20.000 cel./ml, de cada una. El desarrollo embrionario del Chione sp. se generó con toda normalidad, alcanzando todas sus fases larvales de la siguiente
  • Xoimi AMERICAN COXCIIOLOGY

    Xoimi AMERICAN COXCIIOLOGY

    S31ITnS0NIAN MISCEllANEOUS COLLECTIOXS. BIBLIOGIIAPHY XOimi AMERICAN COXCIIOLOGY TREVIOUS TO THE YEAR 18G0. PREPARED FOR THE SMITHSONIAN INSTITUTION BY . W. G. BINNEY. PART II. FOKEIGN AUTHORS. WASHINGTON: SMITHSONIAN INSTITUTION. JUNE, 1864. : ADYERTISEMENT, The first part of the Bibliography of American Conchology, prepared for the Smithsonian Institution by Mr. Binuey, was published in March, 1863, and embraced the references to de- scriptions of shells by American authors. The second part of the same work is herewith presented to the public, and relates to species of North American shells referred to by European authors. In foreign works binomial authors alone have been quoted, and no species mentioned which is not referred to North America or some specified locality of it. The third part (in an advanced stage of preparation) will in- clude the General Index of Authors, the Index of Generic and Specific names, and a History of American Conchology, together with any additional references belonging to Part I and II, that may be met with. JOSEPH HENRY, Secretary S. I. Washington, June, 1864. (" ) PHILADELPHIA COLLINS, PRINTER. CO]^TENTS. Advertisement ii 4 PART II.—FOREIGN AUTHORS. Titles of Works and Articles published by Foreign Authors . 1 Appendix II to Part I, Section A 271 Appendix III to Part I, Section C 281 287 Appendix IV .......... • Index of Authors in Part II 295 Errata ' 306 (iii ) PART II. FOEEIGN AUTHORS. ( V ) BIBLIOGRxVPHY NOETH AMERICAN CONCHOLOGY. PART II. Pllipps.—A Voyage towards the North Pole, &c. : by CON- STANTiNE John Phipps. Loudou, ITTJc. Pa. BIBLIOGRAPHY OF [part II. FaliricillS.—Fauna Grcenlandica—systematice sistens ani- malia GrcEulandite occidentalis liactenus iudagata, &c., secun dum proprias observatioues Othonis Fabricii.
  • 2016 Tese Vprocha.Pdf

    2016 Tese Vprocha.Pdf

    0 UNIVERSIDADE FEDERAL DO CEARÁ – UFC INSTITUTO DE CIÊNCIAS DO MAR – LABOMAR PROGRAMA DE PÓS-GRADUAÇÃO EM CIÊNCIAS MARINHAS TROPICAIS VALESCA PAULA ROCHA FILOGENIA MOROLÓGICA E MOLECULAR E ASPECTOS BIOGEOGRÁFICOS DA SUBFAMÍLIA CHIONINAE (BIVALVIA:VENERIDAE) FORTALEZA 2016 1 Dados Internacionais de Catalogação na Publicação Universidade Federal do Ceará Biblioteca Rui Simões de Menezes R577f Rocha, Valesca Paula. Filogenia morfológica e molecular e aspectos biogeográficos da subfamília chioninae (Bivalvia:veneridae). – 2016. 121f.: il. color., enc. ; 30 cm. Tese (doutorado) – Universidade Federal do Ceará, Instituto de Ciências do Mar, Programa de Pós-Graduação em Ciências Marinhas Tropicais, Fortaleza, 2016. Área de Concentração: Utilização e Manejo de Ecossistemas Marinhos e Estuarinos. Orientação: Profª. Drª. Helena Matthews Cascon. Coorientadora: Profª. Drª. Cristiane Xerez Barroso. 1. Conchas - Anatomia. 2. Molusco - Evolução. 3. Bivalvia. 4. Biogeográficos. I. Título. CDD 594.11 2 VALESCA PAULA ROCHA Filogenia Morfológica e Molecular e Aspectos Biogeográficos da Subfamília Chioninae (Bivalvia:Veneridae) Tese submetida à Coordenação do curso de Pós- Graduação em Ciências Marinhas Tropicais do LABOMAR/UFC, como requisito parcial para a obtenção do grau de Doutor em Ciências Marinhas Tropicais. Orientadora: Prof.ª. Drª. Helena Matthews Cascon. Coorientadora: Drª. Cristiane Xerez Barroso FORTALEZA 2016 3 Valesca Paula Rocha Filogenia Morfológica e Molecular e Aspectos Biogeográficos da Subfamília Chioninae (Bivalvia:Veneridae) Tese submetida à Coordenação do curso de Pós-Graduação em Ciências Marinhas Tropicais do LABOMAR /UFC, como requisito parcial para a obtenção do grau de Doutor em Ciências Marinhas Tropicais. Aprovada em 20 de maio de 2016 BANCA EXAMINADORA Coorientadora 4 À minha vó Neusa (in memoriam), que me ensinou seguir firme..
  • Molluscs (Mollusca: Gastropoda, Bivalvia, Polyplacophora)

    Molluscs (Mollusca: Gastropoda, Bivalvia, Polyplacophora)

    Gulf of Mexico Science Volume 34 Article 4 Number 1 Number 1/2 (Combined Issue) 2018 Molluscs (Mollusca: Gastropoda, Bivalvia, Polyplacophora) of Laguna Madre, Tamaulipas, Mexico: Spatial and Temporal Distribution Martha Reguero Universidad Nacional Autónoma de México Andrea Raz-Guzmán Universidad Nacional Autónoma de México DOI: 10.18785/goms.3401.04 Follow this and additional works at: https://aquila.usm.edu/goms Recommended Citation Reguero, M. and A. Raz-Guzmán. 2018. Molluscs (Mollusca: Gastropoda, Bivalvia, Polyplacophora) of Laguna Madre, Tamaulipas, Mexico: Spatial and Temporal Distribution. Gulf of Mexico Science 34 (1). Retrieved from https://aquila.usm.edu/goms/vol34/iss1/4 This Article is brought to you for free and open access by The Aquila Digital Community. It has been accepted for inclusion in Gulf of Mexico Science by an authorized editor of The Aquila Digital Community. For more information, please contact [email protected]. Reguero and Raz-Guzmán: Molluscs (Mollusca: Gastropoda, Bivalvia, Polyplacophora) of Lagu Gulf of Mexico Science, 2018(1), pp. 32–55 Molluscs (Mollusca: Gastropoda, Bivalvia, Polyplacophora) of Laguna Madre, Tamaulipas, Mexico: Spatial and Temporal Distribution MARTHA REGUERO AND ANDREA RAZ-GUZMA´ N Molluscs were collected in Laguna Madre from seagrass beds, macroalgae, and bare substrates with a Renfro beam net and an otter trawl. The species list includes 96 species and 48 families. Six species are dominant (Bittiolum varium, Costoanachis semiplicata, Brachidontes exustus, Crassostrea virginica, Chione cancellata, and Mulinia lateralis) and 25 are commercially important (e.g., Strombus alatus, Busycoarctum coarctatum, Triplofusus giganteus, Anadara transversa, Noetia ponderosa, Brachidontes exustus, Crassostrea virginica, Argopecten irradians, Argopecten gibbus, Chione cancellata, Mercenaria campechiensis, and Rangia flexuosa).
  • Embryonic and Larval Development of Ensis Arcuatus (Jeffreys, 1865) (Bivalvia: Pharidae)

    Embryonic and Larval Development of Ensis Arcuatus (Jeffreys, 1865) (Bivalvia: Pharidae)

    EMBRYONIC AND LARVAL DEVELOPMENT OF ENSIS ARCUATUS (JEFFREYS, 1865) (BIVALVIA: PHARIDAE) FIZ DA COSTA, SUSANA DARRIBA AND DOROTEA MARTI´NEZ-PATIN˜O Centro de Investigacio´ns Marin˜as, Consellerı´a de Pesca e Asuntos Marı´timos, Xunta de Galicia, Apdo. 94, 27700 Ribadeo, Lugo, Spain (Received 5 December 2006; accepted 19 November 2007) ABSTRACT The razor clam Ensis arcuatus (Jeffreys, 1865) is distributed from Norway to Spain and along the British coast, where it lives buried in sand in low intertidal and subtidal areas. This work is the first study to research the embryology and larval development of this species of razor clam, using light and scanning electron microscopy. A new method, consisting of changing water levels using tide simulations with brief Downloaded from https://academic.oup.com/mollus/article/74/2/103/1161011 by guest on 23 September 2021 dry periods, was developed to induce spawning in this species. The blastula was the first motile stage and in the gastrula stage the vitelline coat was lost. The shell field appeared in the late gastrula. The trocho- phore developed by about 19 h post-fertilization (hpf) (198C). At 30 hpf the D-shaped larva showed a developed digestive system consisting of a mouth, a foregut, a digestive gland followed by an intestine and an anus. Larvae spontaneously settled after 20 days at a length of 378 mm. INTRODUCTION following families: Mytilidae (Redfearn, Chanley & Chanley, 1986; Fuller & Lutz, 1989; Bellolio, Toledo & Dupre´, 1996; Ensis arcuatus (Jeffreys, 1865) is the most abundant species of Hanyu et al., 2001), Ostreidae (Le Pennec & Coatanea, 1985; Pharidae in Spain.
  • Mining the Transcriptomes of Four Commercially Important Shellfish

    Mining the Transcriptomes of Four Commercially Important Shellfish

    Marine Genomics 27 (2016) 17–23 Contents lists available at ScienceDirect Marine Genomics Cells to Shells: The genomics of mollusc exoskeletons Mining the transcriptomes of four commercially important shellfish species for single nucleotide polymorphisms within biomineralization genes David L.J. Vendrami a,⁎, Abhijeet Shah a,LucaTelescab,JosephI.Hoffmana a Department of Animal Behaviour, University of Bielefeld, Postfach 100131, 33501 Bielefeld, Germany b Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge, Cambridgeshire CB2 3EQ, UK article info abstract Article history: Transcriptional profiling not only provides insights into patterns of gene expression, but also generates sequences Received 8 October 2015 that can be mined for molecular markers, which in turn can be used for population genetic studies. As part of a Received in revised form 17 December 2015 large-scale effort to better understand how commercially important European shellfish species may respond to Accepted 23 December 2015 ocean acidification, we therefore mined the transcriptomes of four species (the PacificoysterCrassostrea gigas, Available online 21 January 2016 the blue mussel Mytilus edulis, the great scallop Pecten maximus and the blunt gaper Mya truncata)forsinglenu- Keywords: cleotide polymorphisms (SNPs). Illumina data for C. gigas, M. edulis and P. maximus and 454 data for M. truncata Crassostrea gigas were interrogated using GATK and SWAP454 respectively to identify between 8267 and 47,159 high quality SNPs Mya truncata per species (total = 121,053 SNPs residing within 34,716 different contigs). We then annotated the transcripts Mytilus edulis containing SNPs to reveal homology to diverse genes. Finally, as oceanic pH affects the ability of organisms to in- Pecten maximus corporate calcium carbonate, we honed in on genes implicated in the biomineralization process to identify a total Non-model organism of 1899 SNPs in 157 genes.
  • List of Bivalve Molluscs from British Columbia, Canada

    List of Bivalve Molluscs from British Columbia, Canada

    List of Bivalve Molluscs from British Columbia, Canada Compiled by Robert G. Forsyth Research Associate, Invertebrate Zoology, Royal BC Museum, 675 Belleville Street, Victoria, BC V8W 9W2; [email protected] Rick M. Harbo Research Associate, Invertebrate Zoology, Royal BC Museum, 675 Belleville Street, Victoria BC V8W 9W2; [email protected] Last revised: 11 October 2013 INTRODUCTION Classification rankings are constantly under debate and review. The higher classification utilized here follows Bieler et al. (2010). Another useful resource is the online World Register of Marine Species (WoRMS; Gofas 2013) where the traditional ranking of Pteriomorphia, Palaeoheterodonta and Heterodonta as subclasses is used. This list includes 237 bivalve species from marine and freshwater habitats of British Columbia, Canada. Marine species (206) are mostly derived from Coan et al. (2000) and Carlton (2007). Freshwater species (31) are from Clarke (1981). Common names of marine bivalves are from Coan et al. (2000), who adopted most names from Turgeon et al. (1998); common names of freshwater species are from Turgeon et al. (1998). Changes to names or additions to the fauna since these two publications are marked with footnotes. Marine groups are in black type, freshwater taxa are in blue. Introduced (non-indigenous) species are marked with an asterisk (*). Marine intertidal species (n=84) are noted with a dagger (†). Quayle (1960) published a BC Provincial Museum handbook, The Intertidal Bivalves of British Columbia. Harbo (1997; 2011) provided illustrations and descriptions of many of the bivalves found in British Columbia, including an identification guide for bivalve siphons and “shows”. Lamb & Hanby (2005) also illustrated many species.