DOMOIC ACID IN THE BENTHIC FOOD WEB OF MONTEREY BAY, CALIFORNIA
➤ Gửi thông báo lỗi ⚠️ Báo cáo tài liệu vi phạmNội dung chi tiết: DOMOIC ACID IN THE BENTHIC FOOD WEB OF MONTEREY BAY, CALIFORNIA
DOMOIC ACID IN THE BENTHIC FOOD WEB OF MONTEREY BAY, CALIFORNIA
DOMOIC ACID IN THE BENTHIC FOOD WEBOFMONTEREY BAY, CALIFORNIAA Thesis Presented toThe Faculty of California State University Monterey Bay throughMoss DOMOIC ACID IN THE BENTHIC FOOD WEB OF MONTEREY BAY, CALIFORNIA Landing Marine LaboratoriesIn Partial Fulfillmentof the Requirements for the DegreeMaster of Science in Marine SciencebyJudah D. Goldberg37956APPROVED FOR THE INSTITUTE OF EARTH SYSTEMS SCIENCEAND POT .ICY AND FOR MOSS LANDING MARINELABORATORIESDr. Nicholas A. Welschmeyer, Moss Landing Marine Labor DOMOIC ACID IN THE BENTHIC FOOD WEB OF MONTEREY BAY, CALIFORNIAatoriesDr. Rikk G. Kvitek, California State University, Monterey BayDr. Maty w. Silver, University of California, Santa CruzDr. G. Jason Smith, Moss LDOMOIC ACID IN THE BENTHIC FOOD WEB OF MONTEREY BAY, CALIFORNIA
anding Marine LaboratoriesAPPROVED FOR 11 IE UNIVERSITYABSTRACTD0M0IC ACID IN THE BENTHIC FOOD WEB OF MONTEREY BAY, CALIFORNIAby Judah D. GoldbergPhytDOMOIC ACID IN THE BENTHIC FOOD WEBOFMONTEREY BAY, CALIFORNIAA Thesis Presented toThe Faculty of California State University Monterey Bay throughMoss DOMOIC ACID IN THE BENTHIC FOOD WEB OF MONTEREY BAY, CALIFORNIAosed of harmful algal bloom (HAB) species like Pseudo-liitzschia australis, a producer of domoic acid (DA), the flocculate could represent an important source of phycotoxins to benthic food webs. Here we test the hypothesis that DA contaminates benthic organisms during local blooms of p. australis ( DOMOIC ACID IN THE BENTHIC FOOD WEB OF MONTEREY BAY, CALIFORNIA>10' cells Ll). To test for trophic transfer and uptake of DA into the benthic food web we sampled eight benthic species comprising four feeding typesDOMOIC ACID IN THE BENTHIC FOOD WEB OF MONTEREY BAY, CALIFORNIA
: filter feeders (Emerita analoga and Urechis caupo); a predator (Citharicthys sordidus); scavengers (Nassarius fossatus and Pagurus samuelis); and deDOMOIC ACID IN THE BENTHIC FOOD WEBOFMONTEREY BAY, CALIFORNIAA Thesis Presented toThe Faculty of California State University Monterey Bay throughMoss DOMOIC ACID IN THE BENTHIC FOOD WEB OF MONTEREY BAY, CALIFORNIAustralis, in Monterey Bay, CA during 2000 and 2001. Domoic acid was detected in all eight benthic species, with DA contamination persisting over variable time scales. Maximum DA levels in jV. fossatus (673 ppm), E. analoga (278 ppm), c. sordidus (514 ppm), c. californiensis (144 ppm), p. samuelis (5 DOMOIC ACID IN THE BENTHIC FOOD WEB OF MONTEREY BAY, CALIFORNIA5 ppm), D. exccntricus (13 ppm), and o. biplicata (2 ppm) coincided with p. australis blooms. For five of the species, these concentrations exceeded lDOMOIC ACID IN THE BENTHIC FOOD WEB OF MONTEREY BAY, CALIFORNIA
evels thought to be safefor consumers (i.e. safe for humans: > 20 ppm). These high concentrations of DA arehttps://khothuvien.cori!thus likely to haveDOMOIC ACID IN THE BENTHIC FOOD WEBOFMONTEREY BAY, CALIFORNIAA Thesis Presented toThe Faculty of California State University Monterey Bay throughMoss DOMOIC ACID IN THE BENTHIC FOOD WEB OF MONTEREY BAY, CALIFORNIAcies.ACKNOWLEDGEMENTSThis thesis was completed with the help and dedication of many, especially my committee members and their respective lab technicians and students.I would like to thank Dr. Rikk Kvitek for instilling in me the determination and tenacity to undertake such a comprehensive project. DOMOIC ACID IN THE BENTHIC FOOD WEB OF MONTEREY BAY, CALIFORNIAI also wish to thank Dr. Jason Smith for kindly offering the use of his HPLC instrument and expertise, without which this thesis would have been signiDOMOIC ACID IN THE BENTHIC FOOD WEB OF MONTEREY BAY, CALIFORNIA
ficantly delayed. I would like to express many thanks to Dr. Nick Welschmeyer and the Biological Oceanography Lab for instruction, lab space, support,DOMOIC ACID IN THE BENTHIC FOOD WEBOFMONTEREY BAY, CALIFORNIAA Thesis Presented toThe Faculty of California State University Monterey Bay throughMoss DOMOIC ACID IN THE BENTHIC FOOD WEB OF MONTEREY BAY, CALIFORNIAtoxins!I am very grateful for the funding from the Dr. Earl H. and Ethel M. Myers Oceanographic and Marine Biology Trust, and the David and Lucille Packard Foundation.Finally, to my friends and family, especially my wife Kirsten, thank you for your love and support.V DOMOIC ACID IN THE BENTHIC FOOD WEB OF MONTEREY BAY, CALIFORNIADOMOIC ACID IN THE BENTHIC FOOD WEBOFMONTEREY BAY, CALIFORNIAA Thesis Presented toThe Faculty of California State University Monterey Bay throughMossGọi ngay
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