Dartmouth Laboratory, Canadian Food Inspection Agency, 1992 Agency Drive, Dartmouth, NS B3B 1Y9, Canada.
New Brunswick Operations, Canadian Food Inspection Agency, 99 Mount Pleasant Road, P.O. Box 1036, St. George, NB E5C 3S9, Canada.
Toxins (Basel). 2021 Feb 22;13(2):168. doi: 10.3390/toxins13020168.
Shellfish toxin monitoring programs often use mussels as the sentinel species to represent risk in other bivalve shellfish species. Studies have examined accumulation and depuration rates in various species, but little information is available to compare multiple species from the same harvest area. A 2-year research project was performed to validate the use of mussels as the sentinel species to represent other relevant eastern Canadian shellfish species (clams, scallops, and oysters). Samples were collected simultaneously from Deadmans Harbour, NB, and were tested for paralytic shellfish toxins (PSTs) and amnesic shellfish toxin (AST). Phytoplankton was also monitored at this site. Scallops accumulated PSTs and AST sooner, at higher concentrations, and retained toxins longer than mussels. Data from monitoring program samples in Mahone Bay, NS, are presented as a real-world validation of findings. Simultaneous sampling of mussels and scallops showed significant differences between shellfish toxin results in these species. These data suggest more consideration should be given to situations where multiple species are present, especially scallops.
贝类毒素监测计划通常使用贻贝作为指示物种来代表其他双壳贝类的风险。已经研究了各种物种的积累和净化率，但很少有信息可用于比较来自同一收获区域的多个物种。进行了一项为期两年的研究项目，以验证贻贝作为指示物种来代表其他相关的加拿大东部贝类物种（蛤、扇贝和牡蛎）的适用性。从新不伦瑞克省的死人港同时采集样本，并测试麻痹性贝类毒素 (PST) 和健忘性贝类毒素 (AST)。还在该地点监测浮游植物。扇贝比贻贝更快地积累 PST 和 AST，浓度更高，并且保留毒素的时间更长。新斯科舍省马洪湾监测计划样本的数据作为对研究结果的真实世界验证。贻贝和扇贝的同步采样显示，这些物种的贝类毒素结果存在显著差异。这些数据表明，在存在多种物种的情况下，特别是扇贝，应更多地考虑这些情况。
