![]() ![]() This report examines the recurrent red tide phenomena in Esquimalt Lagoon during the eight year period from 1974 to 1982, with an intense focus of red tide development in 1978. “A Recurrent Red Tide in a British Columbia Coastal Lagoon.” Robinson, M.G.The significance of this study is the possible linkage between sewage, nutrients, and red tide blooms of Gymnodinium sanguineum. This report discusses the potential sources of nutrient loading into the Lagoon. This report examines the role of sewage as a potential source of nutrients and studies the levels of fecal coliforms, salinity, nitrates, ammonia, and phosphates in the Lagoon and feeder surface streams. “The Ecology of Esquimalt Lagoon: Nutrient Inputs - The Role of Sewage.” Robinson, M.G.The significance of this study is that it provides a comprehensive biophysical and biochemical baseline of data. sanguineum and the physical characteristics of the Lagoon waters including temperature, sunlight, salinity, nutrients, nitrates, phosphates, and, chlorophyll. This study examines the linkages between the population and life cycle of G. “Red Tide in Esquimalt Lagoon Due to Gymnodinium sanguineum Hirasaka.” Robinson, M.G.This list is by no means exhaustive and there are information gaps for some periods of time where there is no documented record. The following is a brief synopsis of the studies that have been completed. The study of Red Tides and Gymnodinium sanguineum in Esquimalt Lagoon has been very intense and efforts have been focused on determining the potential sources, causes, triggers, and linkages of algae blooms. Literature Review of Red Tides in Esquimalt Lagoon: Red tides have been associated with a variety of species which include: Gymnodinium breve off Florida Gonyaulax tamarensis and Gonyaulax excavata off New England Gymnodniium nelsoni (same as Gymnodinium sanguineum Hirasaka) off Japan, New Zealand, Chesapeake Bay, and Oslofjord Gymnodinium splendens off Washington and California Gonyaulax catenella and Gonyaulax acatenella off the coast of British Columbia and, Gymnodinium sanguineum in Esquimalt Lagoon. Red tides are characterized by a red discoloration of the water which is attributed to the high populations of photosynthetic Zooflagellates. The study of red tides is significant because they are linked to paralytic shellfish poisoning, massive kills of fish and invertebrate populations, and luminescent water (Robinson and Watanabe, 1979). The Recurring Red Tide Phenomenon in Esquimalt Lagoon:Įsquimalt Lagoon is a natural laboratory to study the phenomena of the recurring red tide event. Red Tide Occurrence in Esquimalt Lagoon.Sources, Triggers, and the Life Cycle of Gymnodinium sanguineum.The Red Tide Phytoplankton Gymnodinium sanguineum.Literature Review of Red Tides in Esquimalt Lagoon.The Recurring Red Tide Phenomenon in Esquimalt Lagoon.Waterose: Esquimalt Lagoon: Red Tides and Fish KillĮsquimalt Lagoon State of the Ecosystem Report Water Quality Analysis Project 1998 Waterose et. ![]()
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