Special Scientific Report: Fisheries, Números 525-540National Marine Fisheries Service, 1965 |
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Página 9
... species other than shad , listed temperature as the obvious environmental factor that may produce differences at the time these charac- ters are formed in the embryo . Although shad spawn earlier in southern rivers and progressively ...
... species other than shad , listed temperature as the obvious environmental factor that may produce differences at the time these charac- ters are formed in the embryo . Although shad spawn earlier in southern rivers and progressively ...
Página 1
... species synopses , issued by F.A.O. Fisheries Biology Branch , in connection with the world species meetings on sardine and tuna . Under the present agreement the Bureau has assigned the preparation of synopses on various eco- nomically ...
... species synopses , issued by F.A.O. Fisheries Biology Branch , in connection with the world species meetings on sardine and tuna . Under the present agreement the Bureau has assigned the preparation of synopses on various eco- nomically ...
Página 2
... species , T. tra churus ( L ) and T. picturatus ( Bowdich ) , with T. symmetricus in the latter . In 1920 Nichols described the Peruvian form as T. murphyi and included a key to the species of Trachurus . Hildebrand ( 1946 ) was ...
... species , T. tra churus ( L ) and T. picturatus ( Bowdich ) , with T. symmetricus in the latter . In 1920 Nichols described the Peruvian form as T. murphyi and included a key to the species of Trachurus . Hildebrand ( 1946 ) was ...
Página 3
... species appears to consist of a single population . As the fish increase in length it appears that the relative lengths of the pectoral fins in- crease , and the last two rays in the dorsal and anal fins become more finletlike in ap ...
... species appears to consist of a single population . As the fish increase in length it appears that the relative lengths of the pectoral fins in- crease , and the last two rays in the dorsal and anal fins become more finletlike in ap ...
Página 5
... species , the sardine , Sardinops caerulea ( Girard ) , the Paci- fic mackerel , Pneumatophorus diego ( Ayres ) , and the anchovy , Engraulis mordax Girard , taken by the purse seine fishery . 3 2.4 Hybridization No evidence of ...
... species , the sardine , Sardinops caerulea ( Girard ) , the Paci- fic mackerel , Pneumatophorus diego ( Ayres ) , and the anchovy , Engraulis mordax Girard , taken by the purse seine fishery . 3 2.4 Hybridization No evidence of ...
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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.