Special Scientific Report: Fisheries, Números 525-540National Marine Fisheries Service, 1965 |
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Página 3
... offshore ( Fig . 2 ) . The seaward extension of spawning has not been delimited by the present surveys . Abundance of eggs and larvae decreases to the south , and none are taken off southern Baja California . Spawning also occurs at ...
... offshore ( Fig . 2 ) . The seaward extension of spawning has not been delimited by the present surveys . Abundance of eggs and larvae decreases to the south , and none are taken off southern Baja California . Spawning also occurs at ...
Página 7
... offshore between Point Conception , California , ( about lat . 35o N. ) and San Quentin Bay , Baja California , ( about lat . 300 N. ) ; 10.7 percent of the larvae were taken north of this area and 9.2 percent south . The spawning area ...
... offshore between Point Conception , California , ( about lat . 35o N. ) and San Quentin Bay , Baja California , ( about lat . 300 N. ) ; 10.7 percent of the larvae were taken north of this area and 9.2 percent south . The spawning area ...
Página 11
... offshore waters at night contained lantern fish . Both the mackerel and lantern fish were probably attracted to a light suspended over the stern of the vessel . Large jack mackerel taken by the sport fishery are usually caught with ...
... offshore waters at night contained lantern fish . Both the mackerel and lantern fish were probably attracted to a light suspended over the stern of the vessel . Large jack mackerel taken by the sport fishery are usually caught with ...
Página 13
... offshore ( Clothier and Greenhood , 1956 ) . When sardines are more abundant the purse seiners do not range so far offshore . Jack mackerel are also taken in unknown but relatively small amounts by Mexican purse seiners off northern ...
... offshore ( Clothier and Greenhood , 1956 ) . When sardines are more abundant the purse seiners do not range so far offshore . Jack mackerel are also taken in unknown but relatively small amounts by Mexican purse seiners off northern ...
Página 9
... offshore Gulf of Maine by Redfield ( 1941 ) . He showed a progres- sive west - to - east seasonal increase in the Gulf calanoid population from a low in winter to a high in late summer and early fall . This change occurred during an ...
... offshore Gulf of Maine by Redfield ( 1941 ) . He showed a progres- sive west - to - east seasonal increase in the Gulf calanoid population from a low in winter to a high in late summer and early fall . This change occurred during an ...
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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.