200 



FISHERY BULLETIN OF THE FISH AND WILDLIFE SERVICE 



Kanagawa Prefecture fisheries experiment Station. 

 — Continued 



nities, notes on plankton; fishing logs, 

 N. macropteriis and P. mebachi recorded 

 from stomach contents; shipboard refrig- 

 eration experiments. 

 1952a. Report of experimental tuna fishing on the 

 eastern grounds by the Sagami Maru. Maguro 

 gyogyo shiken hokoku 4:21 p. [J.P] 



Report of an exploratory longlining cruise 

 in Feb.-Mar. around 32°N., 171°E. Catch 

 rates of albacore and bigeye; average 

 sizes; length frequency distribution of al- 

 bacore; estimated depth of capture; sex 

 ratios; water temperatures and salinities 

 to 300 m. ; fishing correlated with oceano- 

 graphic conditions. Complete fishing logs. 

 1952b. Report of experimental tuna fishing on the 

 eastern grounds by the Sagami Maru. Maguro 

 gyogyo shiken hokoku 5:26 p. [J,P] 



Report of an exploratory longlining cruise 

 in Feb.- Apr. around 30 °N., 175 °E. Alba- 

 core and bigeye catch rates, sex ratios, 

 length frequency distribution; water tem- 

 perature and salinities to 300 m., correla- 

 ted with fishing conditions; catch by 

 branch line number. Complete fishing 

 logs. 

 KANAI, MOTO, and NOBORU KASU. 



1938. Report of an investigation of the economics 

 of the Okinawan tuna longline and deep-sea 

 handline fisheries. Okinawa-ken suisan shi- 

 kenjo hokoku 1:1-42. [J,P] 



History of the fishery, charts of grounds 

 showing expansion, fishing seasons; des- 

 cription and figures of gear and vessels; 

 list of vessels, catch statistics; economics 

 of the fishery: costs of gear, provisions, 

 bait, fuel. 

 Kanamura, Masami, and Kakuji Imaizumi. 



1936a. Report of experimental tuna longlining east 

 of Formosa. In Report of experimental fish- 

 ing by the Shonan Maru in 1935. Taiwan s6- 

 tokufu suisan shiken jo shuppan 3:165-202. 



[J,P] 



Results of fishing at 21°-23°N., 121°-126° 

 E. in Nov.-Dec. Gear dimensions, station 

 plot, fishing log, weather, surface and 

 subsurface temperature and salinity, 

 transparency, water color; yellowfin, big- 

 I eye: catch rates, depth of capture; body 



temperature, sex, maturity, length, weight 

 of 25 yellowfin and 3 bigeye; shark dam- 

 age rate; tuna catch and water tempera- 

 ture correlated. 

 1936b. Fishing conditions for tuna longline boats 

 based at Takao. Taiwan sotokufu suisan shi- 

 kenjo shuppan 3: 203-207. [J,P] 



Operational data (average cruises per 



kanamura, Masami, and Kakuji Imaizumi. — Cont. 



season, Oct. -May, average fishing effort, 

 average catch per cruise by species) for 7 

 commercial boats fishing the Celebes, 

 Sulu, and S. China Seas; plots by 1° 

 squares of catch rates for yellowfin and 

 bigeye. 



Kanamura, Masami, and Haruo Yazaki. 



1940a. Investigation of tuna longline fishing 

 grounds in the East Philippine Sea. In Report 

 of fishing ground investigations by the Sho- 

 nan Maru in 1937. Taiwan sotokufu suisan 

 shiken jo shuppan 21:1-65. [J,P] 



Results of exploratory longlining at 3°- 

 20°N., 123°-131°E. in June-Sept. Fishing 

 log, track chart and station plot; setting, 

 hauling, and soaking time; construction of 

 gear. Subsurface temperatures and salini- 

 ties, transparency, water color at stations. 

 Yellowfin, bigeye, skipjack, albacore catch 

 rates; depth of capture; catch rates plotted 

 against latitude; stomach contents (non- 

 quantitative) ; sex and maturity; body 

 temperature (compared with water tem- 

 perature) ; length, weight, length-weight 

 relation, age according to Aikawa's tables, 

 condition factor; correlation of yellowfin 

 catch with water temperature, salinity, 

 currents, and weather examined; shark 

 damage rates. 



1940b. Investigation of tuna longline fishing 

 grounds in the South China Sea. In Report 

 of fishing ground investigations by the Shonan 

 Maru in 1937. Taiwan sotokufu suisan shi- 

 kenjo shuppan 21:67-117. [J,P] 



Results of exploratory longlining at 16°- 

 22°N., 116°-121°E. in Feb.-May. Fishing 

 log with operational data, track chart and 

 station plot; gear construction. Subsur- 

 face temperatures and salinity, transpar- 

 ency, water color at stations. Yellovirfin, 

 albacore: catch rates; depth of capture; 

 stomach contents (non-quantitative) ; body 

 temperature, compared with water tem- 

 perature; length, weight, age according 

 to Aikawa's tables, condition factor, sex 

 and maturity; correlation of dark or 

 "green" flesh color with kind of feed, con- 

 dition factor, and sexual maturity at- 

 tempted. 

 Kashiwada, Kenichi, Daiichi Kakimoto, 

 and YOSHISHIGE Horiguchi. 



1952. Biochemical studies on skipjack (Katsu- 

 wonus vagaiis). I. Chemical components of 

 pyloric caeca and extractive matter. Bull. Jap. 

 Soc. sci. Fish. 18(4) : 147-150. [Je,P] 



Fat, moisture, ash, protein content; 

 changes in nitrogen compounds by auto- 

 lysis. 



