Special Scientific Report: Fisheries, Números 525-540National Marine Fisheries Service, 1965 |
Dentro del libro
Resultados 1-5 de 88
Página 1
... temperature of 17 ° C. The young shad stay in the rivers until autumn , attaining a length ranging from 75 to 145mm . , and then migrate to sea . After spending from 2 to 6 years in the ocean , shad return to the rivers to spawn . Those ...
... temperature of 17 ° C. The young shad stay in the rivers until autumn , attaining a length ranging from 75 to 145mm . , and then migrate to sea . After spending from 2 to 6 years in the ocean , shad return to the rivers to spawn . Those ...
Página 9
... temperature range . Laboratory rearing of the species under controlled conditions would be needed to demonstrate clearly the relation between meristic counts and temperature . There was no consistent latitudinal cline in the meristic ...
... temperature range . Laboratory rearing of the species under controlled conditions would be needed to demonstrate clearly the relation between meristic counts and temperature . There was no consistent latitudinal cline in the meristic ...
Página 7
... temperatures ( 20- meter depth ) of 10 ° to 19.5 ° C. , but over 70 percent of the larger concentrations of ... temperature in degrees Centigrade . Thus incubation time would be 2 days at 17.9 ° C. , 3 days at 15.9 ° C. and 4 ...
... temperatures ( 20- meter depth ) of 10 ° to 19.5 ° C. , but over 70 percent of the larger concentrations of ... temperature in degrees Centigrade . Thus incubation time would be 2 days at 17.9 ° C. , 3 days at 15.9 ° C. and 4 ...
Página 3
... temperature on the embryological develop- ment of the sea lamprey ; studies of feeding and growth of ammocetes ; and determination of biological characteristics of recently trans- formed sea lampreys . Still another significant research ...
... temperature on the embryological develop- ment of the sea lamprey ; studies of feeding and growth of ammocetes ; and determination of biological characteristics of recently trans- formed sea lampreys . Still another significant research ...
Página 5
... temperature , pH , conductivity , and concentrations of Na , K , Ca , C1 , SO4 , SiO2 , and dissolved oxygen off the mouth of Saginaw Bay and along a transect from Harbor Beach , Mich . , to Goderich , Ontario , June- October 1956 ...
... temperature , pH , conductivity , and concentrations of Na , K , Ca , C1 , SO4 , SiO2 , and dissolved oxygen off the mouth of Saginaw Bay and along a transect from Harbor Beach , Mich . , to Goderich , Ontario , June- October 1956 ...
Otras ediciones - Ver todo
Términos y frases comunes
3-check abundance Amer American shad anchovy larvae Atlantic Area Atlantic menhaden August Baja California ber Occur ber rences taken blooms breve brevis Bull Bureau of Commercial central Baja California Chesapeake Bay coast Commercial Fisheries concentrations cruise dead fish dinoflagellates distribution eggs estimate females fin rays FISH AND WILDLIFE Florida fork length fur seals growth Gulf Gymnodinium jack mackerel July June kill Lake Erie lake trout larvae Little Kitoi Lake males migration mortality Number Number Number Number Percent offshore OOSTEN organisms outbreaks Paul Island pelagic Petersen tag phosphorus plankton population Pribilof Islands pups purse seine purse seine catches red tide red-tide rences taken rences River Rock Island Dam Ruth Lake salinity salmon sardine sea lamprey season smolts sockeye spawning Spec species Station lines striped bass surface survival taken rences taken temperature tion toxic U.S. Fish Wildl zooplankton
Pasajes populares
Página 71 - UNITED STATES DEPARTMENT OF THE INTERIOR FISH AND WILDLIFE SERVICE UNITED STATES DEPARTMENT OF THE INTERIOR, Fred A.
Página 4 - US DEPARTMENT OF THE INTERIOR, FISH AND WILDLIFE SERVICE, BUREAU OF COMMERCIAL FISHERIES, Washington, DC, June 13, 1962.
Página 10 - Hydr., 36: 57-130. 1941. Age and growth of the rock bass, Ambloplites rupestris (Rafinesque), in Nebish Lake, Wisconsin.
Página 7 - This project covers the expenses of the two American members of the International Board of Inquiry for the Great Lakes Fisheries...
Página 7 - An investigation of the relative efficiencies of natural and artificial propagation of sockeye salmon (Oncorhynchus nerka) at Cultus Lake, British Columbia.
Página 57 - No. 23, 26 pp. 1948. A record of pilchard eggs and larvae collected during surveys made in 1939 to 1941. US Dept.
Página 60 - I would appreciate it. (The information referred to follows :) DEPARTMENT OF THE INTERIOR, FISH AND WILDLIFE SERVICE, BUREAU OF COMMERCIAL FISHERIES, Washington, DC Hon.