Realm: Freshwater
Climate: Temperate
Biome: Large lake ecosystems
Central latitude: 43.577212
Central longitude: -77.671815
Duration: 2 years, from 1990 to 1995

442 records

40 distinct species

Across the time series Sphaeriidae is the most frequently occurring species

Methods

Note BioTIME managers: these data are a subset of the Density data for Lake Ontario benthic invertebrate assemblages from 1964 to 2018. The datsets contains records sampled with equivalent methods in years 1990 & 1995.In 1990 and 1995 benthic surveys were conducted in Lake Ontario in October along ? series of transects (Fig. 5) following the Environment Canada surveillance site locations (Kwaitkowski and Neilson 1983), as part of the Lake Ontario Trophic Transfer study (Dermott and Geminiuc 2003). Three replicate samples were collected using a Ponar sampler (0.053 m2) from each of the 25 (in 1990) and 41 (in 1995) stations, washed using 600 ?m sieve and preserved in the field using 8-10 % neutralized formalin. Only one replicate per station was processed for most of the stations due to limited funding except for the annually sampled BioIndex sites (#41, 81a, 93, and 93A) that had all 3 replicate samples analyzed. Abundance is the the average density (individuals/m2) of individuals of each taxon found at each station (as average of all replicates collected at this station).

Citation(s)

@Article{BioTIME_cit399, Study_id = {652}, Citation_id = {399}, Author = {Burlakova, Lyubov E. and Karatayev, Alexander Y. and Hrycik, Allison R. and Daniel, Susan E. and Mehler, Knut and Rudstam, Lars G. and Watkins, James M. and Dermott, Ronald and Scharold, Jill and Elgin, Ashley K. and Nalepa, Thomas F. and Hinchey, Elizabeth K. and Lozano, Stephen J.}, Journal = {Ecology}, Pages = {e03528}, Title = {Density data for Lake Ontario benthic invertebrate assemblages from 1964 to 2018}, Volume = {102}, Year = {2021}, Doi = {10.1002/ecy.3528}, Language = {English} }