Effect of oxygen reduction rate and constant low dissolved oxygen concentrations on two estuarine fish

Journal Article · Mon Sep 01 00:00:00 EDT 1980 · Trans. Am. Fish. Soc.; (United States)

DOI:https://doi.org/10.1577/1548-8659(1980)109<552:EOORRA>2.0.CO;2· OSTI ID:7065626

Burton, D T; Richardson, L B; Moore, C J

The relationship between mean lethal oxygen concentration and rate of reduction of dissolved oxygen that induces fish kills was determined for Atlantic menhaden (Brevoortia tyrannus). Reduction of dissolved oxygen at hourly rates of 1.00 to 0.08 mg/liter had no effect on the mean lethal oxygen concentrations. There was an inverse relationship between the median time to death (LT50) and rate of oxygen reduction that can be used to estimate how quickly a fish kill may occur when oxygen concentrations decrease at a constant rate. Atlantic menhaden were less resistant than spot (Leiostomus xanthurus) when both species were exposed to constant low concentrations of oxygen. The lethal threshold concentrations for Atlantic menhaden and spot at 28/sup 0/C were approximately 1.1 and 0.7 mg/liter, respectively, whereas, the 96-hour, 5% lethal concentrations were approximately 1.6 and 0.8 mg/liter, respectively.

• Research Organization: Benedict Estuarine Research Lab., MD
• OSTI ID: 7065626
• Journal Information: Trans. Am. Fish. Soc.; (United States), Vol. 109:5
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
59 BASIC BIOLOGICAL SCIENCES
FISHES
SENSITIVITY
OXYGEN
BIOLOGICAL EFFECTS
AQUATIC ECOSYSTEMS
BIOLOGICAL STRESS
COMPARATIVE EVALUATIONS
INTAKE
METABOLISM
MORTALITY
PH VALUE
QUANTITATIVE CHEMICAL ANALYSIS
QUANTITY RATIO
REDUCTION
SEAWATER
STATISTICS
TIME DEPENDENCE
TOLERANCE
ANIMALS
AQUATIC ORGANISMS
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
ECOSYSTEMS
ELEMENTS
HYDROGEN COMPOUNDS
MATHEMATICS
NONMETALS
OXYGEN COMPOUNDS
VERTEBRATES
WATER
520100* - Environment
Aquatic- Basic Studies- (-1989)
550500 - Metabolism