Dataset 74
Copepoda collected from the Canada Basin Arctic Ocean Fletcher's Ice Island (T-3) 1970-1972 and AIDJEX. 1975. Phytoplankton Primary Production Below Arctic Ocean Pack Ice An Ecosystems Analysis
Realm: Marine
Climate: Polar
Biome: Polar ecoregions Central latitude: 80.393869
Central longitude: -116.643525
Duration: 4 years, from 1970 to 1975
Pautzke, C.G. "Copepoda collected from the Canada Basin Arctic Ocean; Fletcher's Ice Island (T-3) 1970-1972 and AIDJEX, 1975". Phytoplankton Primary Production Below Arctic Ocean Pack Ice: An Ecosystems Analysis. PhD Thesis University of Washington; Arctic Ocean Diversity, University of Alaska Fairbanks, Fairbanks., Accessed 2012.
Climate: Polar
Biome: Polar ecoregions Central latitude: 80.393869
Central longitude: -116.643525
Duration: 4 years, from 1970 to 1975
6672 records
37 distinct species
Across the time series Calanus hyperboreus is the most frequently occurring speciesMethods
Samples were taken with vertical net hauls. In 1970 to 1973 a 2-m square closing net with 223 um mesh was used to sample either 10m increments from 300 to 10m. or a 90m water column from 100 to 10m. In 1975. a 1m diameter. conical. non-closing net with 73um mesh was used for overlapping tows from depths of 50. 75. 100 and 150m to the surface. Samples were preserved immediately in 4% formalin solution buffered with sodium borate and sodium acetate. Species taken from 100 to 10m were counted in one sample per month for June to September 1970-1973. Calanus hyperboreus. Calanus glacialis. Euchaeta glacialis. Microcalanus pygmaeus. and Oithona similis were identified to copepodite stages and adults. Stage I copepodites of C. hyperboreus and C. glacialis were distinguished by metasome length. the former being longer than 0.8mm. Metridia longa was identified to only stage III in 1975 and to stage I in 1970 to 1973. Oncaea borealis juveniles were not identified to copepodite stage; all juveniles were combined and may include individuals of O. notopus. Copepod nauplii were counted. but not identified to species. Copepods longer than 1.5mm were counted in entire samples. Smaller copepods were subsampled (usually and aliquot portion of 1/64. 1/128. or 1/256). Filtration efficiency of the nets was assumed to be 100. Unit of abundance = IndCountInt, Unit of biomass = NACitation(s)
Pautzke, C.G. "Arctic Copepods T3 & AIDJEX Ice Islands". . Available at: http://www.arcodiv.org/Database/Plankton_datasets, accessed 2012.Pautzke, C.G. "Copepoda collected from the Canada Basin Arctic Ocean; Fletcher's Ice Island (T-3) 1970-1972 and AIDJEX, 1975". Phytoplankton Primary Production Below Arctic Ocean Pack Ice: An Ecosystems Analysis. PhD Thesis University of Washington; Arctic Ocean Diversity, University of Alaska Fairbanks, Fairbanks., Accessed 2012.
