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Phytoplankton Pigment Specific Growth And Losses Due To Microzooplankton Grazing In A Northern Gulf Of Mexico Estuary During Winter/Fall, Amanda M. Mcgehee, Donald G. Redalje
Phytoplankton Pigment Specific Growth And Losses Due To Microzooplankton Grazing In A Northern Gulf Of Mexico Estuary During Winter/Fall, Amanda M. Mcgehee, Donald G. Redalje
Gulf and Caribbean Research
Microzooplankton dilution grazing experiments were carried out on 6 dates, over a 3 month period at 2 locations in the Bay of St. Louis, MS (BSL) to determine phytoplankton pigment specific growth rates under natural (µ0) and replete (µn) nutrient conditions and microzooplankton grazing. We hypothesized that diatoms would be the largest portion of the phytoplankton composition due to the winter/fall season and that these organisms would have the highest growth/grazing rates. We suspected that river flow from the Jourdan River would adversely affect growth and grazing rates of all phytoplankton classes. Growth rates of 5 …
You Can't Catch A Fish With A Robot, R. Grant Gilmore Jr.
You Can't Catch A Fish With A Robot, R. Grant Gilmore Jr.
Gulf and Caribbean Research
Abstract
In this essay I will relate the challenges associated with deep sea ocean exploration as well as the advantages and disadvantages of today’s ocean technologies based on experience with most of these systems. After nearly five decades using robotic vehicles (Remotely Operated Vehicles = ROVs and Autonomous Underwater Vehicles = AUVs) and manned submarines for fish research, I thought it would be appropriate to briefly describe a career spent using these technologies as they were developed. Deep sea ichthyologists cannot effectively catch a swimming fish with a robot even 40 years after the development of the first ROV for …