. Die kommerzielle Fischerei. Fischerei Fischhandel. Mai 1958 die kommerzielle Fischerei ÜBERPRÜFUNG 41. Gegen Ende des Quartals, junge QUAKEN - äh und Spot, und andere Fische fing in der experimentellen Fänge zu erscheinen. Am 21. Februar, Bären Bluff Laboratorien ves-sel T-19 einen Run southeastward 135 aus dem Norden Edisto meer Boje. In 11 Klafter von Wasser bei ca. 32 17' N 79 52' W. ein paar tote Fische schwimmen auf der Oberfläche festgestellt wurden. Diese erwies sich als Angelfish (Angelichthys isabelita, Jordanien& Rutter). Am gleichen Tag der Trawler Hoffnung, ein paar Meilen nach Süden und ein

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. Commercial fisheries review. Fisheries; Fish trade. May 1958 COMMERCIAL FISHERIES REVIEW 41 will be. Toward the end of the quarter, young croak- er and spot, and other fishes began to reappear in the experimental catches. On February 21, Bears Bluff Laboratories ves- sel T-19 made a run southeastward 135 from the North Edisto sea buoy. In 11 fathoms of water at approximately 32 17' N. and 79 52' W. a few dead fish were noted floating on the surface. These proved to be angelfish (Angelichthys isabelita, Jordan & Rutter). On the same day the trawler Hope, a few miles to the southward and a few miles further offshore than the T-19, reported running through about 15 miles of scattered dead fish. Most of the fish were angelfish, but a few dead porgy and vermilion snapper were also reported. On February 24 and 25, the T-19 again resur- veyed the general area, taking water temperatures and making occasional sample trawls. The pres- ence of several species of live fishes in the trawls, with the observation that the dead fish found on the surface were mostly of one species (angelfish) eliminates manmade devices such as depth charges as the cause of this fish kill. The survey indicated that there was a mass of cold water ranging from 40 to 50 F. lying along the shore out to approxi- mately 15 fathoms. Beyond the 15-fathom curve, the temperature rose rapidly, and at 23 fathoms had reached a temperature of 64 F. The angel- fish, being largely a tropical fish, could not sur- vive the low temperatures of this mass of cold water. Pond Cultivation: This winter, the coldest on record since 1918, the 5 salt-water experimentauL ponds at Bears Bluff were frozen over, and the water temperature under the ice dropped to 32.5 F, Most of the experimental fishes in the ponds had already been killed by a previous cold spell, so that this temperature was of more theoretical than practical importance. The freeze-over did not kill the blue crabs in the ponds, however, and as soon as the wa

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