CIGLR’s Paul Glyshaw and David Wells on Lake Huron aboard the 26′ boat ‘Cyclops.’ They have just pulled the neuston net through the water, which samples larval fish and other small organisms near the water surface. Samples were collected for processing back at the laboratory.
CIGLR’s Paul Glyshaw and Deckhand Todd Roetman are prepped and ready for additional sampling in Saginaw Bay, Lake Huron.
Another instrument that samples the water column is the MOCNESS (Multiple Opening/Closing Net and Environmental Sensing System). The MOCNESS is a net system used for plankton collection. Pictured: Todd Roetman (Deckhand), Ed Rutherford (GLERL), David Wells (CIGLR), Paul Glyshaw (CIGLR), and Doran Mason (GLERL).
Ed Rutherford (GLERL) and David Wells (CIGLR) controlling the MOCNESS. As the MOCNESS tows behind a research ship, each net can be opened and shut independently so that it samples a distinct patch of water. The researcher can then choose exactly when to open and shut the net by using the environmental sensing system. This is an array of sensors mounted on the instrument frame that relays water conditions up to the ship in real time.
David Wells (CIGLR) and Paul Glyshaw (CIGLR) operating the MOCNESS. Photo Credit: Joann Cavaletto.
CIGLR Summer Fellow, Angelika Kurthen, gets acquainted with scientific sampling from a research vessel.
Back in the laboratory, Joann Cavaletto (GLERL) records data from the research cruise.
CIGLR’s Paul Glyshaw and David Wells process samples collected from Lake Huron for nutrients, larval fish, and zooplankton. These data will be incorporated into a large database and used to compare foodweb dynamics between Great Lakes ecosystems.
CIGLR’s Paul Glyshaw and David Wells in the lab processing nutrient samples.