Influence of Life-History Parameters on Persistent Organic Pollutant Concentrations in Blubber of Eastern North Pacific Gray Whales (Eschrichtius robustus).
Influence of Life-History Parameters on Persistent Organic Pollutant Concentrations in Blubber of Eastern North Pacific Gray Whales (Eschrichtius robustus).
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DOI：
10.1021/acs.est.2c05998
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发表时间：
2022-12-06
影响因子：
11.4
通讯作者：
Godard-Codding, Celine A. J.
中科院分区：
文献类型：
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作者：
Hayes, Kia R. R.;Ylitalo, Gina M.;Anderson, Todd A.;Urban, Jorge;Jacobsen, Jeff K.;Scordino, Jonathan J.;Lang, Aimee R.;Baugh, Keri A.;Bolton, Jennie L.;Bruniche-Olsen, Anna;Calambokidis, John;Martinez-Aguilar, Sergio;Subbiah, Seenivasan;Gribble, Matthew O.;Godard-Codding, Celine A. J.
接触持久性有机污染物（POP）会显着影响海洋哺乳动物的健康、生殖和健身。本研究通过分析120份鲸脂活检中的持久性有机污染物，解决了灰鲸污染物监测方面20年来的重大空白。这一大量样本集的范围在其范围和多样性方面值得注意，这些样本是在2003年至2017年沿着北美西海岸收集的，涉及不同的性别、年龄和生殖参数，包括配对的母亲和小牛。自上一次报告（1968-1999年）以来，鲸脂中多氯联苯、二氯二苯三氯乙烷和氯丹的平均浓度普遍下降。这是关于该物种中多溴联苯醚（PBDEs）和特定六氯环己烷（HCHs）的首次报告。对该数据集中19种最常检测到的化合物进行的统计建模揭示了性别、年龄和生殖状态相关的模式，主要归因于母体卸载。在成年人中，持久性有机污染物的平均浓度因性别而存在显著差异（17种化合物，男性高出3倍），但未成年人中的持久性有机污染物平均浓度差异不大（所有19种化合物）。与未成年人相比，成年人的持久性有机污染物平均浓度在雄性（17种化合物，高达12倍）和雌性（13种化合物，高达3倍）中均显著较高。在哺乳期小牛体内检测到具有特定化合物模式的持久性有机污染物浓度，首次证实了该物种的母体卸载。这项研究报告了灰鲸体内持久性有机污染物的长期和全种群浓度，并提供了对整个生命史参数的生物累积模式的深入了解。
Exposure to persistent organic pollutants (POPs) can significantly impact marine mammal health, reproduction, and fitness. This study addresses a significant 20-year gap in gray whale contaminant monitoring through analysis of POPs in 120 blubber biopsies. The scope of this substantial sample set is noteworthy in its range and diversity with collection between 2003 and 2017 along North America’s west coast and across diverse sex, age, and reproductive parameters, including paired mothers and calves. Mean blubber concentrations of polychlorinated biphenyls (∑PCBs), dichlorodiphenyltrichloroethanes (∑DDTs), and chlordanes (∑CHLs) generally decreased since previous reports (1968–1999). This is the first report of polybrominated diphenyl ethers (PBDEs) and select hexachlorocyclohexanes (HCHs) in this species. Statistical modeling of the 19 most frequently detected compounds in this dataset revealed sex-, age-, and reproductive status-related patterns, predominantly attributed to maternal offloading. Mean POP concentrations differed significantly by sex in adults (17 compounds, up to 3-fold higher in males) but not in immatures (all 19 compounds). Mean POP concentrations were significantly greater in adults versus immatures in both males (17 compounds, up to 12-fold) and females (13 compounds, up to 3-fold). POP concentrations were detected with compound-specific patterns in nursing calves, confirming maternal offloading for the first time in this species. This study reports long-term and population-wide POP concentrations in gray whales and provides insight into bioaccumulation patterns across life-history parameters.
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影响因子：
4.1
作者：
Elfes, Crstiane T.;VanBlaricom, Glenn R.;Krahn, Margaret M.
通讯作者：
Krahn, Margaret M.
DOI：
10.1007/s00128-005-0731-y
发表时间：
2005-07-01
影响因子：
2.7
作者：
Borrell, A;Aguilar, A
通讯作者：
Aguilar, A
影响因子：
5.8
作者：
BORRELL, A
通讯作者：
BORRELL, A
影响因子：
8.9
作者：
Das, Krishna;Malarvannan, Govindan;Covaci, Adrian
通讯作者：
Covaci, Adrian
影响因子：
4.1
作者：
Desforges, Jean-Pierre W.;Ross, Peter S.;Loseto, Lisa L.
通讯作者：
Loseto, Lisa L.