Table 1.

Mercury concentrations in benthic invertebrates and zooplankton from 5 NH and VT lakes (means based on dry weights ± SD). N = 3 for each taxon and lake, except N = 2 amphipods in both Horseshoe and Post Pond. Means across lakes are presented in bold for each taxon.

Taxon	Site	Mean Hg (ng g−1) ± SD
Amphipoda	Canobie Lake	131 ± 3
	Gregg Lake	155 ± 40
	Horseshoe Pond	32 ± 41
	Post Pond	106 ± 27
	Weatherhead Hollow Pond	1 ± 0
	MEAN	88 ± 67
Chironomidae	Canobie Lake	151 ± 25
	Gregg Lake	75 ± 68
	Horseshoe Pond	54 ± 13
	Post Pond	147 ± 34
	Weatherhead Hollow Pond	148 ± 18
	MEAN	115 ± 53
Crayfish	Post Pond	74 ± 12
	Weatherhead Hollow Pond	129 ± 23
	MEAN	102 ± 34
Odonata (Gomphidae)	Post Pond	70 ± 31
Odonata (Libellulidae)	Canobie Lake	264 ± 222
	Gregg Lake	101 ± 14
	Horseshoe Pond	34 ± 38
	Post Pond	176 ± 22
	Weatherhead Hollow Pond	94 ± 26
	MEAN	134 ± 119
Snail	Gregg Lake	137 ± 10
	Horseshoe Pond	127 ± 55
	Post Pond	515 ± 240
	Weatherhead Hollow Pond	17 ± 28
	MEAN	205 ± 234
Unionidae	Post Pond	144 ± 44
Zooplankton (>202 μm)	Gregg Lake	351 ± 75
	Horseshoe Pond	199 ± 37
	Post Pond	249 ± 204
	MEAN	266 ± 129
Odonata (Coenagrionidae)	Canobie Lake	212 ± 103
	Gregg Lake	288 ± 27
	Horseshoe Pond	52 ± 3
	Post Pond	378 ± 158
	Weatherhead Hollow Pond	13 ± 19
	MEAN	188 ± 160