Contributions to the biology of Tagelus plebeius (Bivalvia: Tellinacea) in Galveston Bay, Texas.

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dc.acquisition-srcen_US
dc.call-noen_US
dc.contract-noen_US
dc.contributor.authorWardle, W.J.en_US
dc.contributor.otheren_US
dc.date.accessioned2010-02-15T17:20:49Z
dc.date.available2010-02-15T17:20:49Z
dc.date.issued1970en_US
dc.degreeen_US
dc.description58 p., Thesisen_US
dc.description-otheren_US
dc.description.abstractMonthly quantitative population samples of 100 to 200 clams each were taken from an intertidal mud flat during the year 1968. Individuals were measured and weighed to get growth data and were checked for the presence of symbiotic organisms. Various aspects of ecology, such as habitat, behavior and predation, were observed in the field. Population studies showed high densities of clams (to 300 per sq. meter) during the early spring, declining sharply in the fall. Larval clams settled in the spring and grew rapidly until the following winter. The breeding stock of large adults constituted a relatively small percentage of the population throughout the year. Clams were isolated experimentally at various salinities in order to find the limits of their tolerance. Salinities ranging from 5 to 35 ppt produced little change in the feeding rate of T. plebeius, and these clams survived prolonged isolation at both of these salinity extremes, indicating a high degree of euryhalinity. High fall mortality was found to occur in the field, which may be related to the presence of Labyrinthomyxa-like fungus parasites in the tissues of the clam. Larval trematodes of the families Gymnophallidae and Fellodistomatidae and larval tapeworms of the order Tetraphyllidea are here first reported as parasites of T. plebeius. The trematode sporocysts were observed to cause damage to the gonad and digestive gland of the host.en_US
dc.description.urihttp://gbic.tamug.edu/request.htmen_US
dc.geo-codeGalveston Bayen_US
dc.historyen_US
dc.identifier.urihttp://hdl.handle.net/1969.3/23963
dc.latitudeen_US
dc.locationNOT AVAILABLE IN-HOUSE.en_US
dc.longitudeen_US
dc.notesen_US
dc.placeCollege Station, Texasen_US
dc.publisherTexas A&M University.en_US
dc.relation.ispartofseries581.00en_US
dc.relation.urien_US
dc.scaleen_US
dc.seriesen_US
dc.subjectmarine molluscsen_US
dc.subjectclamsen_US
dc.subjectTagelus plebeiusen_US
dc.subjectLabyrinthomyxa sp.en_US
dc.subjecthabitaten_US
dc.subjectbehavioren_US
dc.subjectpredationen_US
dc.subjectsalinity toleranceen_US
dc.subjectparasitesen_US
dc.subjectTrematodaen_US
dc.titleContributions to the biology of Tagelus plebeius (Bivalvia: Tellinacea) in Galveston Bay, Texas.en_US
dc.typeBooken_US
dc.universityen_US
dc.vol-issueen_US

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Galveston Bay Bibliography
GBIC Abstracts (full text not available through Jack K. Williams Library)