Decline in PCB levels in otters (Lutra lutra).
نویسنده
چکیده
A decline in total PCB levels in tissues of otters (Lutra lutra) from England and Wales, averaging 8% per year over the period 1983-1992, is reported. Mean PCB levels are now unlikely to pose a threat to otter populations.
منابع مشابه
Application of biomarkers for exposure and effect of polyhalogenated aromatic hydrocarbons in naturally exposed European otters (Lutra lutra).
In the serious decline of European otters (Lutra lutra) over the last decades, polychlorinated biphenyls (PCBs) are considered to be one of the major factors. As no experiments can be conducted with otters, an eco-epidemiological study was performed to derive no observed effect concentrations (NOECs) for PCBs in the otter. A strong negative correlation was found between hepatic vitamin A and po...
متن کاملThe Otter (Lutra lutra) in Sweden: Contaminants and Health
Roos, A. 2013. The Otter (Lutra lutra) in Sweden: Contaminants and Health. Acta Universitatis Upsaliensis. Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology 1051. 47 pp. Uppsala. ISBN 978-91-554-8688-4. In the 1950s the otter started to decline in numbers and distribution in Sweden and other parts of Europe. In 1972 a game law came into force, l...
متن کاملPCBs and organochlorine pesticide residues in otters (Lutra lutra) and in otter spraints from SW England and their likely impact on populations.
PCB and organochlorine pesticide residues were determined in otter (Lutra lutra) spraints (faeces) from nine catchment regions in SW England over the period 1989-1991. Results of analyses of tissues from 22 otters are also presented. Dieldrin occurred in the majority of spraint samples and p,p-DDE and total PCBs in all. Lindane occurred mainly in samples collected in spring. Lindane was not fou...
متن کاملOrganochlorine residue levels and bioconcentration factors in otters (Lutra lutra L.) from northeast Spain.
The dramatic reduction observed in the distribution of the Eurasian otter (Lutra lutra) during the latter half of this century has been largely attributed to pollution (MacDonald, 1991). Attention has focused on organochlorine compounds, in particular PCB (Mason 1989; Olsson and Sandegren 1991; MacDonald and Mason 1992). The scarcity of the otter, and protection afforded, has meant tissue sampl...
متن کاملGenetic analysis of the otter population (Lutra lutra) in Kristianstad’s Vattenrike Biosphere Reserve, Sweden
During the past century the Swedish otter (Lutra lutra) population showed a rapid decline in abundance and genetic diversity. Among the most affected areas was the southern province of Skåne. After prohibiting hunting of otters and banning harmful pollutants like PCB, Swedish populations slowly recovered. To some areas the otter returned late, like Kristianstad in north-eastern Skåne. Here, the...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Chemosphere
دوره 36 9 شماره
صفحات -
تاریخ انتشار 1998