Publisher's Synopsis
Excerpt from The Food Habits of the Yellowfin Tune Neothunnus Macropterus (Schlegel) From the Celebes Sea
The stomachs were removed from the fish immediately after they were caught and were preserved in formalin. In order to prevent the loss of any of the stomach con tents each stomach was placed separately in a bleached cotton bag. Collections were made at two different times, in February 1933 and from July to September 1934. Stomachs from a total of 57 fish were collected, 34 on the first voyage and 23 on the second.
The fishing grounds were as shown in Figure 1. T can be seen that, except for a part of the stations, these two exploratory fishing cruises were carried out in exactly the same waters. As a result, although they were not both made in the same year, the study can be regarded as providing an Opportunity to compare results from collections made at two diametrically Opposite seasons of the year.
The materials for this study were obtained through the kindness of Mr. Hitoshi Hiratsuka, who was in charge of operations aboard the ship at the time. My pro found gratitude to him is here expressed.
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