@article{oai:ir.kagoshima-u.ac.jp:00004888,
 author = {植田, 総一 and 玉利, 達夫},
 journal = {鹿児島大学水産学部紀要=Memoirs of Faculty of Fisheries Kagoshima University},
 month = {2016-10-28},
 note = {Since 1952,
the Tunny Catch Fluctuation at the sea fronts spreading over the both South &
Northward of the sea fronts off the Mangoli and Taliabu Islands belonging to the
Sula Islands lying eastward of the Celebes Island has investigated by the crew of
the Kagoshima-maru, Training ship of Kagoshima University, as a part of the fixed
researching plan.
After making some researches according to the features derived from the regional
and seasonal devisions, the following results were obtained.
(1) It was in Winter and at the North side of the sea front that the Fishing Rate
per 100 hooks reached its maximum at the figure of 6.0%; and the next one was
observed, in Summer, at the Southern Sea Front, at the figure of 5.8%.
(2) At the southern sea fronts, an abundant appearance of Big-eye tuna (38%) was
observed, the fish body being large, 30% of those fish caught having the trunk-length
more than 141~150 cm and body-weight more than 60 kg.
At the northern sea front, in winter, the appearance of Marlin's reached 33.7% of the
total, main species of which being Sail Fish.
(3) The main sources of the Catch are, except the Summer Season at the southern
sea front, composed of Yellow-fin tuna.
(4) Through both Summer and Winter, good catch percentage was seen at the
southern sea front along the water-line about 20 miles off the seaside of Taliabu Island.
(5) At the Southern Sea Front, about 25 miles off the seaside and in case of the
Northern Sea Front, about 30 miles off, the Drift-Line could not help being overwhelmed
by the running waves, and this showed the existence of a Tide current. The detailed
Sea condition of these fronts should be reported in the next paper.},
 pages = {154--160},
 title = {マンゴリ・タリアブ両島沿海に於けるまぐろ漁況について(第1報)},
 volume = {7},
 year = {}
}