Occurrence of domoic acid in Washington state razor clams (Siliqua patula) during 1991-1993.
Occurrence of domoic acid in Washington state razor clams (Siliqua patula) during 1991-1993.
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1991-1993 年华盛顿州蛏子 (Siliqua patula) 中存在软骨藻酸。
DOI：
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发表时间：
1994
期刊：
影响因子：
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通讯作者：
D. Ayres
中科院分区：
文献类型：
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作者：
J. C. Wekell;E. Gauglitz;Harold J. Bamett;C. Hatfield;D. Simons;D. Ayres
1991年夏末，美国加利福尼亚州蒙特利湾首次报道了软骨藻酸在水生物种中的存在。到1991年10月，在华盛顿和俄勒冈州海岸的剃刀蛤（Siliqua patula）和巨蟹（Cancer magister）的内脏中发现了软骨藻酸。为了应对这次爆发，国家海洋渔业局与华盛顿州渔业局合作，开始分析1991年11月至1993年6月期间华盛顿州剃刀蛤。这项调查表明，蛏子可食用部分的软骨藻酸含量在1991年12月达到峰值（华盛顿州所有沿海地区的平均值：106 ppm），随后缓慢下降到目前的低水平（< 5 ppm）。在达到最高水平16个月后，软骨藻酸并没有完全从华盛顿州海滩上的剃刀蛤中消失。与贻贝（Mytilus edulis）不同的是，这种毒素只存在于贻贝的内脏中，软骨藻酸分布在蛏子的各个身体部位。最高的浓度发生在足部或“挖掘者”，最低的浓度发生在虹吸或“颈部”。蛏子足中软骨藻酸的浓度高达230 ppm。
The presence of domoic acid in aquatic species was reported for the first time in the United States in the late summer of 1991 in Monterey Bay, California. By October of 1991, domoic acid was found in razor clams (Siliqua patula) and in the viscera of Dungeness crab (Cancer magister) along the coasts of Washington and Oregon. In response to this outbreak, the National Marine Fisheries Service, in cooperation with the Washington State Department of Fisheries began analysis of Washington State razor clams for the period from November 1991 to June 1993. This survey indicated that domoic acid levels in the edible portion of the razor clams peaked in December of 1991 (average of all Washington state coastal sites: 106 ppm) and followed a slow decline to the present day low levels (< 5 ppm). Sixteen months after the maximum level, domoic acid has not completely disappeared from the razor clams from the Washington State beaches. Unlike mussels (Mytilus edulis), where the toxin is found only in the viscera, domoic acid distributes itself throughout the various body parts of the razor clam. The highest concentration occurs in the foot or "digger" and the lowest in the siphon or "neck." The concentration of domoic acid in the razor clam foot reached a high of 230 ppm.