| Main Title |
Dynamics of Brown Trout (Salmo trutta), and Sculpin (Cottus spp.) Populations as Indicators of Eutrophication. |
| Author |
Smit, Wayne L. ;
|
| CORP Author |
Michigan State Univ., East Lansing. Dept. of Fisheries and Wildlife. |
| Year Published |
1972 |
| Report Number |
DI-14-31-0001-3723; OWRR-C-3381 ;OWRR-C-1663-3153; 03904,; C-3381-3723(5) |
| Stock Number |
PB-227 455 |
| Additional Subjects |
Trout ;
Marine fishes ;
Michigan ;
Abundance ;
Jordan River ;
Au Sable River ;
Reproduction(Biology) ;
Sex behavior ;
Maturation ;
Surrival ;
Fecundity ;
Theses ;
Salmo trutta ;
Cottus ;
Eutrophication
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB-227 455 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
53p |
| Abstract |
Brown trout and sculpin populations were studied in three variously perturbed stream sites in northern Michigan. Intraspecific comparisons were made of several aspects of population dynamics including the intrinsic rate of natural increase (r). The upper Jordan River, nearly pristine and with high population densities, exhibited r values judged adequate for maintenance of the populations. The other sites were compared with this baseline. The moderately perturbed lower Jordan River had less population densities and survival but greater mean fecundities for both species. (Modified author abstract) |
| NTIS Title Notes |
Doctoral thesis. |
| PUB Date Free Form |
1972, |
| Category Codes |
6C; 98F |
| NTIS Prices |
PC A04/MF A01 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
326573569 |
| Origin |
NTIS |
| Type |
CAT |
