LONG-TERM DECLINE IN FRESH-WATER MUSSELS (BIVALVIA, UNIONIDAE) OF THE WESTERN BASIN OF LAKE ERIE

被引：37

作者：

NALEPA, TF

MANNY, BA

ROTH, JC

MOZLEY, SC

SCHLOESSER, DW

机构：

[1] NATL FISHERIES RES CTR GREAT LAKES,ANN ARBOR,MI 48105

[2] UNIV CALIF BERKELEY,SANITARY ENGN & ENVIRONM HLTH LAB,RICHMOND,CA 94804

[3] N CAROLINA STATE UNIV,DEPT ZOOL,RALEIGH,NC 27695

来源：

JOURNAL OF GREAT LAKES RESEARCH | 1991年 / 17卷 / 02期

关键词：

MUSSELS; MOLLUSKS; BENTHIC FAUNA; LAKE ERIE; POLLUTION EFFECTS;

D O I：

10.1016/S0380-1330(91)71358-0

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Long-term trends in the abundance of unionids in the western basin of Lake Erie were examined from data collected at 17 stations in 1961, 1972, and 1982. The mean number of unionids at these stations declined over this time period, decreasing from 10 m-2 in 1961, to 6 m-2 in 1972, down to 4 m-2 in 1982. This decline in abundance was reflected in the decrease in the number of stations where mussels were found; unionids were found at 16 of the 17 stations in 1961, but at only 6 stations in 1982. Reasons for the decrease in the unionid population are not generally apparent, but are probably related to the decline in water quality and periods of low oxygen levels over the time period of the surveys.

引用

页码：214 / 219

页数：6

共 23 条

[1] STRATIFICATION IN WESTERN LAKE ERIE IN SUMMER OF 1953 - EFFECTS ON THE HEXAGENIA (EPHEMEROPTERA) POPULATION [J].