. Commercial fisheries review. Fisheries; Fish trade. 120° Calif., and TINRO (Pacific Scientific Research Institute of Marine Fisheries and Oceano- graphy) at Vladivostok, USSR. Sampling was begun off Pt. St. George. It was interrupted by a 2-day port call to San Francisco (Feb. 10-11) for supplies and change of scientific personnel. It was completed just north of Pt. Conception (fig. 3). The plankton sampling gear used off Cali- fornia, of CalCOFI design, consisted of two nets mounted on a single frame. One net of 505-micron mesh had a mouth diameter of ft.(lm.); the other, of 333-micron
. Commercial fisheries review. Fisheries; Fish trade. 120° Calif., and TINRO (Pacific Scientific Research Institute of Marine Fisheries and Oceano- graphy) at Vladivostok, USSR. Sampling was begun off Pt. St. George. It was interrupted by a 2-day port call to San Francisco (Feb. 10-11) for supplies and change of scientific personnel. It was completed just north of Pt. Conception (fig. 3). The plankton sampling gear used off Cali- fornia, of CalCOFI design, consisted of two nets mounted on a single frame. One net of 505-micron mesh had a mouth diameter of ft.(lm.); the other, of 333-micron mesh, had a mouth diameter of ft. (^ m.). Each net was equipped with a flow meter; on most tows, a bathykymograph recorded the depth- time path of the net. Oblique tows were carefully controlled to about 656 ft. (water depth permitting). Plankton samples were preserved in formalin, buffered with sodium borate, and sent for processing to the Fish- ery-Oceanography Center at La Jolla. OceanographJc data were gathered to de- termine relation^ between fish and their en- vironment. Salinity and temperature were measured by an STD probe to 1,986 feet (600 m.). Surface isohalines, surface iso- therms, and 10-meter isotherms are given in figures 4, 5, and 6, respectively. Water sam- ples for nutrient determinations were col- lected at about 30-ft. (10-m.) depth and frozen for later analysis. Fig. 3 - Stations fished off California in January and February 1969 to study the distribution and abundance of eggs and larvae of fish. Open circles- plankton tow stations, solid circles plankton tow and STD Fig. 4 - Surface salinity {%jj) of water off California during the study of fish eggs and larvae in January and February 1969,. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. National Marine
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