Landscape Position Project at North Temperate Lakes LTER: Fish Growth and Mercury Contaminant Data 1998 - 1999
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https://search.dataone.org/view/knb-lter-ntl.98.7
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As part of the Landscape Position Project, yellow perch were collected for mercury and
isotope analysis by a combination of angling, beach seining, vertical gill net, fyke net and
electrofishing in the summers of 1998 and 1999. A total of 86 yellow perch from 25 lakes
were analyzed. Scales were used to determine age and length at ages 1 to 3 years. The
nitrogen stable isotope signature indicates the relative food-web position of the fish
relative to cladocerans collected from the same lake. The N_SIGNATURE value divided by 3.2
gives trophic position relative to cladoceran Sampling Frequency: one survey on each lake in
late June through late July of 1998 or 1999 Number of sites: 25
创建时间：
2013-06-14
