Avoidance of Pentachlorophenol by Postlarval Brown Shrimp (Penaeus-Aztecus) (Decapoda, Penaeidae) in A Laminar-Flow Choice Chamber

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dc.acquisition-srcDownloaded from-Web of Scienceen_US
dc.call-noen_US
dc.contract-noen_US
dc.contributor.authorBenfeidl MCen_US
dc.contributor.authorAldrich DVen_US
dc.contributor.otherCanadian Journal of Fisheries and Aquatic Sciencesen_US
dc.date.accessioned2010-02-15T17:17:34Z
dc.date.available2010-02-15T17:17:34Z
dc.date.issued1994 Apren_US
dc.degreeen_US
dc.description784-791en_US
dc.description-otheren_US
dc.description.abstractResponses of postlarval brown shrimp (Penaeus aztecus) to pentachlorophenol (0-450 mug.L-1) were measured in synthetic seawater and estuarine water using a laminar-flow choice chamber. This chamber provides individual postlarvae with equal exposure to two parallel olfactant streams separated by a steep concentration gradient. Shrimp detected and avoided pentachlorophenol concentrations above 91 mug.L-1 in synthetic seawater. This detection threshold reflects limitations in statistical power, and with increased replication the physiological threshold could probably be resolved at a much lower concentration. Pentachlorophenol appeared to be more repellent when dissolved in estuarine water from Galveston Bay, Texas. The 96-h LC50 for pentachlorophenol was 317 mug.L-1 which suggests that postlarvae are capable of avoiding acutely toxic concentrations of this pollutant. For postlarvae of this species, behavioral avoidance appears to provide a more sensitive indicator of pollutant responses than the conventional toxicity bioassayen_US
dc.description.urihttp://gbic.tamug.edu/request.htmen_US
dc.historyen_US
dc.identifier.urihttp://hdl.handle.net/1969.3/23509
dc.latitudeen_US
dc.locationen_US
dc.longitudeen_US
dc.notesTimes Cited: 2ArticleEnglishCited References Count: 38NR098RESEARCH JOURNALS, MONTREAL RD, OTTAWA ON K1A 0R6, CANADAOTTAWAen_US
dc.placeen_US
dc.publisheren_US
dc.relation.ispartofseries51161.00en_US
dc.relation.urien_US
dc.scaleen_US
dc.seriesen_US
dc.subjectWATERen_US
dc.subjectFISHen_US
dc.subjectATTRACTIONen_US
dc.subjectPOLLUTANTSen_US
dc.titleAvoidance of Pentachlorophenol by Postlarval Brown Shrimp (Penaeus-Aztecus) (Decapoda, Penaeidae) in A Laminar-Flow Choice Chamberen_US
dc.typeJournalen_US
dc.universityen_US
dc.vol-issue51(4)en_US

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