Availability of sediment-absorbed heavy metals to benthos with particular emphasis on deposit-feeding.

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dc.acquisition-srcen_US
dc.call-noen_US
dc.contract-noen_US
dc.contributor.authorNeff, J.W.en_US
dc.contributor.authorFoster, R.S.en_US
dc.contributor.authorSlowey, J.F.en_US
dc.contributor.otheren_US
dc.date.accessioned2010-02-15T16:52:34Z
dc.date.available2010-02-15T16:52:34Z
dc.date.issued1978en_US
dc.degreeen_US
dc.description317 p.en_US
dc.description-otheren_US
dc.description.abstractBiological laboratory studies were conducted to evaluate the bioavailability of sediment-absorbed heavy metals to benthic invertebrates. For these studies, five test organisms (Rangia cuneata, Palaemonetes kadiakensis, Neanthes arenaceodentata, and Tubifex sp.) were exposed to metal-enriched natural sediments for periods up to six weeks at different salinities. The test sediments came from Texas City and Corpus Christi, Texas ship channels and Ashtabula, Ohio, harbor. The accumulation of eight heavy metals (cadmium, chromium, copper, iron, manganese, nickel, lead, and zinc) by all species and of two metals (mercury and vanadium) by selected species was measured. Statistically significant accumulation of metal from sediment was demonstrated only 36 times (26.5%) out of 136 metal-species-sediment test combinations. Variations in bioaccumulation were observed between species, metals, sediments, and salinities. In these studies, correlation was not observed between accumulation and specific metal forms as determined by selective chemical extraction of test sediments. Bulk metal analyses of the test sediments also did not correlate with metal bioavailability.en_US
dc.description.urihttp://gbic.tamug.edu/request.htmen_US
dc.geo-codeTexas Cityen_US
dc.historyen_US
dc.identifier.urihttp://hdl.handle.net/1969.3/19574
dc.latitudeen_US
dc.locationNOT AVAILABLE IN-HOUSE.en_US
dc.longitudeen_US
dc.notesen_US
dc.placeen_US
dc.publisheren_US
dc.relation.ispartofseries1819.00en_US
dc.relation.urien_US
dc.scaleen_US
dc.seriesTex. A&M Univ. Tech. Rep. No. WES-TR-D78-42en_US
dc.subjectsedimentsen_US
dc.subjectbiological poisonsen_US
dc.subjectheavy metalsen_US
dc.subjectbenthosen_US
dc.subjecttoxicityen_US
dc.titleAvailability of sediment-absorbed heavy metals to benthos with particular emphasis on deposit-feeding.en_US
dc.typeBooken_US
dc.universityen_US
dc.vol-issueen_US

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