NMFS-COPEPOD: The Global Plankton Database, WEBSEC Sub-Collection
Dates
Start Date
1970-09-27
End Date
1970-10-18
Citation
NOAA National Marine Fisheries Service, NMFS-COPEPOD: The Global Plankton Database, WEBSEC Sub-Collection. ONLINE. 2009. Available: http://www.st.nmfs.noaa.gov/plankton/index.html
Summary
Midwater invertebrates were collected in the southeastern Chukchi Sea. A 1.8m Isaacs-Kidd midwater trawl was used at 20 stations to collect 81 semi-quantitative samples; a 3-m otter trawl was used at one station to collect two qualitative samples. Data tables list the species collected and their numbers, size range, and displacement volumes for the midwater trawl stations and a species list only for the otter trawl station. One hundred three species of invertebrates were identified from the midwater trawl samples, and 33 species were identified from the otter trawl samples. Amphipods were the most diverse group (40 species) and decapod shrimps the next most diverse (14 species). Numbers of species in a sample varied from 4 to 40 (mean [...]
Summary
Midwater invertebrates were collected in the southeastern Chukchi Sea. A 1.8m Isaacs-Kidd midwater trawl was used at 20 stations to collect 81 semi-quantitative samples; a 3-m otter trawl was used at one station to collect two qualitative samples. Data tables list the species collected and their numbers, size range, and displacement volumes for the midwater trawl stations and a species list only for the otter trawl station. One hundred three species of invertebrates were identified from the midwater trawl samples, and 33 species were identified from the otter trawl samples. Amphipods were the most diverse group (40 species) and decapod shrimps the next most diverse (14 species). Numbers of species in a sample varied from 4 to 40 (mean 17). After removal of jellyfishes, the most important contributors in numbers and volume to the catches were euphausiids and mysids.
