Spatial and temporal patterns in metal levels in eggs of common terns (Sterna hirundo) in New Jersey

被引:26
作者
Burger, J
Gochfeld, M
机构
[1] Rutgers State Univ, Div Life Sci, Piscataway, NJ 08854 USA
[2] Environm & Occupat Hlth Sci Inst, Piscataway, NJ 08854 USA
[3] Univ Med & Dent New Jersey, Robert Wood Johnson Med Sch, Piscataway, NJ 08854 USA
关键词
seabirds; metals; arsenic; cadmium; chromium; lead; manganese; mercury; selenium; Atlantic coast; bioindicator;
D O I
10.1016/S0048-9697(03)00135-9
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Seabirds are excellent subjects for examination of metals because they feed at different trophic levels, including as top-level piscivores, they are long-lived, and many are abundant and widely distributed. In this paper we examine the levels of arsenic, cadmium, chromium, lead, manganese, mercury and selenium in eggs from common terns (Sterna hirundo) nesting on five saltmarsh islands in Barnegat Bay, New Jersey from 2000 to 2002. We test the null hypothesis that there were no locational or temporal differences from 2000 to 2002. There were significant locational differences in all metals in some years, although the differences were not large. The levels of most metals do not seem sufficiently high to cause adverse effects, although the levels of mercury in eggs of some common terns from the bay are within the range known to cause adverse effects. Mercury in common tern eggs may be a contributing cause to their local decline. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:91 / 100
页数:10
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