Title: Aquatic biotal monitor

Abstract: The specification discloses an aquatic biotal monitor for monitoring the chronic impact of pollution, such as chemical, thermal and turbidity, of aquatic environments upon in situ samples of biota. The monitor includes a top and bottom mounting ring. A water permeable mesh extends between and interconnects the mounting rings and encloses the bottom ring to form a closed and cylindrical enclosure to retain the biotal sample. The cylindrical enclosure permits the free exchange of ambient water between the outside of the cylindrical enclosure and the inside of the enclosure. The monitor further includes flotation structure attached to the top ring for floating the cylindrical enclosure in the body of water, such that the enclosure monitors the impact of changing aquatic environments on the biotal sample. In addition, the monitor can be anchored at a selected site for studying the impact over periods of time of pollutants emanating continuously.

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Inventors: Pequegnat, Willis E. (College Station, TX, US)

Application Number: 717701
Filing Date: 1976-08-25
Publication_date: 1978-04-18
Assignee: TerEco Corporation (College Station, TX)
Primary Class(es): 119/200 4/488, 119/215
Other Classes:
US Patent Ref:

1925175	Sep, 1933	Day	4/171.
2813507	Nov, 1957	Miller	119/3.
3571819	Mar, 1971	Puncochar	4/171.
3683854	Aug, 1972	Lewis	119/3.
3691994	Sep, 1972	McPherson	119/3.
3698359	Oct, 1972	Fremont	119/3.
3702599	Nov, 1972	Herolzer	119/4.
3717124	Feb, 1973	Jacobs	119/3.

Other Refs: 2,016,135

Oct, 1971	DT

Primary Examiner: Eskovitz, Jay N.
Assistant Examiner:
Attorney: Richards, Harris & Medlock