Main Title |
Mortality Rates from Size Distribution: The Application of a Conservation Law. |
Author |
Van Sickle, John ;
|
CORP Author |
Corvallis Environmental Research Lab., OR. Ecological Effects Research Div.;National Research Council, Washington, DC. |
Year Published |
1976 |
Report Number |
EPA/600/J-77/131; |
Stock Number |
PB-287 000 |
Additional Subjects |
Population(Statistics) ;
Size determination ;
Mortality ;
Marine biology ;
Mathematical models ;
Distribution(Property) ;
Steady state ;
Growth ;
Population growth ;
Density(Mass/volume) ;
Age ;
Estimating ;
Fisheries ;
Comparison ;
Clams ;
Reprints ;
Ecosystems ;
Tivela stultorum
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB-287 000 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
9p |
Abstract |
A population model explicitly describing the dynamics of an arbitrary population size distribution is presented. One consequence of the model is an equation for the exact shape of the size distribution of a stationary or steady-state population. The shape is expressed as a function of size-specific mortality and growth rates. From the equation, various mortality estimation formulas can be derived, two of which are discussed in detail. One of the methods permits estimation of size-specific mortality rates without the assumption of a theoretical growth model. |
Supplementary Notes |
Pub. in Oecologia, v27 p311-318 1977. |
NTIS Title Notes |
Journal article. |
Title Annotations |
Reprint: Mortality Rates from Size Distribution: The Application of a Conservation Law. |
PUB Date Free Form |
1 Oct 76 |
Category Codes |
8A; 6F; 6C; 47D; 57H; 98F |
NTIS Prices |
PC A02/MF A01 |
Primary Description |
600/03 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
323750124 |
Origin |
NTIS |
Type |
CAT |