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Status of Fishes in Selected Adirondack Lakes: Eight Decades of Changing Assemblage Composition

Status of Fishes in Selected Adirondack Lakes: Eight Decades of Changing Assemblage Composition

Published in: Business, Technology
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  • 1. Article presentation Tanika Ojasild EMÜ, RHB I
  • 2.  The Adirondacks are a mountainous region in upstate New York. The Adirondack lakes were surveyed 1995- 2006 Research includes:- fish assemblage- population characteristics- relative abundance and composition- water chemistry
  • 3.  18 lakes were surveyed. The lakes range in elevation from 397 – 645 m and in size from 3.6-187 ha. Most lakes are shallow, ranging in depth from 1.5 – 13 m. All lakes were drainage lakes.
  • 4.  Fish were caught in two types of nets. Fish were marked, measured and released back to the lakes. Resurvey was carried out to identify, count and record each fish. Fish were caught again to examine the multiplicity and biological diversity.
  • 5.  Twenty-four species and two hybrids were present in the eighteen Adirondack lakes. The most abundant species were golden shiner and pumpkinseed. The rarest fish were yellow perch and brown bullhead. White sucker, pumpkinseed and rock bass, composed over 80% of the catch in most years.
  • 6.  Population of exotic taxa exceeded the presence of native species. The relationship between water chemistry and fish composition is unclear. The results in the survey can be used to compare conditions in other lakes in the region.
  • 7.  BSP/FISHSJ 2008 “Status of Fishes in Selected Adirondack Lakes: Eight Decades of Changing Assemblage Composition” Available at http://www.benthamscience.com/open/tofis hsj/articles/V004/21TOFISHSJ.pdf- Last accessed November 2011

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