Gasometer: An inexpensive device for continuous monitoring of dissolved gases and supersaturation

Transactions of the American Fisheries Society
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Abstract

The “gasometer” is a device that measures differential dissolved-gas pressures (δP) in water relative to barometric pressure (as does the “Weiss saturometer”), but operates continuously without human attention. The gasometer can be plumbed into a water-supply system and requires 8 liters/minute of water or more at 60 kilopascals. The gasometer's surfaces are nontoxic, and flow-through water can be used for fish culture. The gasometer may be connected to a small submersible pump and operated as a portable unit. The gasometer can activate an alarm system and thus protect fish from hyperbaric (supersaturation) or hypobaric gas pressures (usually due to low dissolved oxygen). Instructions are included for calculating and reporting data including the pressure and saturation of individual gases. Construction and performance standards are given for the gasometer. Occasional cleaning is required to remove biofouling from the gas-permeable tubing.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Gasometer: An inexpensive device for continuous monitoring of dissolved gases and supersaturation
Series title Transactions of the American Fisheries Society
DOI 10.1577/1548-8659(1982)111<505:G>2.0.CO;2
Volume 111
Issue 4
Year Published 1982
Language English
Publisher American Fisheries Society
Description 12 p.
First page 505
Last page 516