Toshi's work

I encountered the same misunderstanding about the cost of fish in Japan market many times. Just like the blue fin tuna, a very variable fish that cost about USD120/100g!!!. Wait, wait !. You should know the story behind that the price comes in particular condition such fish is wild one (not cultured), has a premium quality (freshness, color, texture and contents of lipid) and is served at high class Sushi restaurants in the middle of Tokyo . Furthermore, the premium meat comes only less than 10 % from total body weight that calls "Otoro". The average price of blue fin tuna is USD25/Kg or less and culture one is one half of it. Even so still the price is attractive at developing countries what I understand. So, I commented about Japan market and fish price in Tokyo market on 2004 which is converted to USD. Refer file name "-marketing-japan-050419" at above address or crick "Toshi" at side bar. http://groups.google.com/group/toshif 海外で私は日本の市場における魚の値...

I worked in Ecuador under JICA http://www.jica.go.jp/ project from 1993 to 1997. I transfered technology of broodstock collection, seed production and juvenile rearing about flounder ( Paralichthis woolmani ) and white snook ( Centropomus viridis ). Maturation control by water temperature is one of the most useful technique that supply seed on demand, synchronize to rotifer production and reduce cost. The system consist broodstock tank (17.5 ton, 0.9 m depth) , egg collection tank, filter tank, heat pump and UV, and rearing water recirculate by pump. Flounder (Biomass 47Kg, 8 males and 11 females) spawned 165 million egg naturally from June 1995 to May 1997. The spawning was abundant between 18 to 20 C. I use same method in Malawi with carps, Barbus litamba “Thamba”, Labeo cyrinduricus “Ningwi” and Clarias gariepinus “Mlamba” are mature at water temperature 27 to 29 ℃ . Thamba and Ningwi spawn egg after hormone injection and produce some hatch-out fry. １９９３年から１９９７年に南米のエクアド...

According to The Santiago Times on August 10, 2007 , " Chile 's National Fishing Service (SERNAPESCA) has instructed salmon farmers to kill fish found to be infected with the lethal Infectious Salmon Anemia (ISA), a highly contagious virus that was recently detected on several fish farms around Chiloe , region X " http://www.tcgnews.com/santiagotimes/index.php?nav=story&story_id=14410&topic... . Chile is one of the biggest salmon producer in world market, it produced 618 thousand ton (US$2.2 billion) in 2006. The industry is contributing to social very much similar to the mining industry. However, it give negative impacts to environment, like contamination of lake http://www.worldwildlife.org/cci/dialogues/salmon.cfm . Penaeus prawns virus reached epidemic word wide more than two decades. I hope salmon virus solve soon. Hopefully those problems can be solved soon. I like to recommend optional indigenous species that can be large scale industry. There are thre...

We transported San pedro broodstock from Antofagasta to our hatchery, 300 miles away from Iquique , on Dec. 27, 2007 . Antofagasta is capital city of 2nd region and the biggest city at north of Chile http://en.wikipedia.org/wiki/Antofagasta . The city is developing very quickly by expansion of mineral businesses, especially exportation of copper. In fact, the population increased from 297 thousands (2002) to 548 thousands (2006) and it has big shopping mall and hotels. We left Iquique in the afternoon passing Atacama Desert drive all night. One of my colleague wanted see his mother who lives near Antofagasta and he turned to sub road. The road was wide and asphalted at the beginning then going to gravel and finally sandy road. So, he chose wrong road and the car got stacked in beach around 10 PM . We tried to pull out the car joking at beginning but were silent passed 3 hours. Finally, he requested mother to send somebody to pull out the car. We arrived Antofagasta Univers...

I worked in Ecuador as JICA ( Japan International Cooperation Agency http://www.jica.go.jp/ ) expert in CENAIM (Centro Nacional de Acuicultura e Investigaciones Marinas "Edgar Arellano M." http://www.cenaim.espol.edu.ec/ ) from 1993 to 1997. The jobs were technical transfer of marine fish seed production, particularly broodstock collection, maturation inducement, seed production and juvenile rearing of snook and flounder. The part of broodstock collection is one of the most important and exciting job, because premium broodstock promise to produce excellent seeds. We used to buy the fish from fisherman directory by cash during fishing. Once we pay, the cost was non refundable even if we found some defect of the fish later. Thus, broodstock purchaser require the abilities which evaluate fish quality in an instance under chaotic fishing condition. The conditions of broodstock are as follows. · The fish is matured or the size is able to mature · Less ...

I worked in Ecuador as JICA ( Japan International Cooperation Agency http://www.jica.go.jp/ ) expert in CENAIM (Centro Nacional de Acuicultura e Investigaciones Marinas "Edgar Arellano M." http://www.cenaim.espol.edu.ec/ ) from 1993 to 1997. The jobs were technical transfer of marine fish seed production, particularly broodstock collection, maturation inducement, seed production and juvenile rearing of snook and flounder. Fine flounder ( Paralichthys woolmani "Lenguado") is one of very popular fish in Ecuador . The fish were fished by gill-net at off-shore where 30 to 50 m depth during winter season, June to September. Water temperature showed 21 to 25C at surface during collection season. The nets, more or less 10 cm mesh and 200 m long, were set in the afternoon and raise in the following morning. We followed the fisherman in the morning and purchased fish which was ideal for brood stock. The conditions for brood stock are the same as robalo. Especially, d...

I worked in Malawi as JICA ( Japan International Cooperation Agency http://www.jica.go.jp/ ) expert in NAC ( National Aquaculture Center in Domasi http://project.jica.go.jp/malawi/5241021E1/index.htm ) from 2000 to 2004. The jobs were technical transfer of broodstock collection, seed production and juvenile rearing of carp, catfish and tilapia. Ntchila ( Labeo mesops ) is very popular and abundant fish before like it figure show in coin. I hard that Ntchila gather and swing grasses at shore during spawning season. But we can't see in market except inside national park. We collected Ntchila at Shire River inside Liwonde National Park http://www.theplateau.com/malawi/liwonde.htm with fishing permission. First thing to do, we visit fisherman village to get fisherman and bring to fishing area to drew a canoe. Fisherman set drift gill net on sunset and drew a net every an hour and it was done until late midnight . Brood fish should not have any damage, such as bleeding f...

I worked in Malawi as JICA ( Japan International Cooperation Agency http://www.jica.go.jp/ ) expert in NAC ( National Aquaculture Center in Domasi http://project.jica.go.jp/malawi/5241021E1/index.htm ) from 2000 to 2004. The jobs were technical transfer of broodstock collection, seed production and juvenile rearing of carp, catfish and tilapia. We collected broodstock at Shire River inside Liwonde National Park http://www.theplateau.com/malawi/liwonde.htm with fishing permision. The fish were scarce due to over fishing except inside the park where fishing is prohibited. Shire River is 402 Km length starting from the outlet of Lake Malawi passing through the middle of country to Zambia . We had fishing during night time when fish are active. We worked with park ranger who armed with M1 rifle to protect from poacher and animals. There was atime when a crocodile was tangled by the gill-net and pulled our canoe. Hippos rouse to the surface and intimidated to blow snort wh...

I will transfer my blog "Toshi F's Blog" from http://360.yahoo.com/chiletoshi. Work in 2000-2007 (Back number, Japanese only) 私は２０００年から２０００４年にかけて、アフリカのマラウイで働いていました。当時の生活や仕事に関しては http://www5f.biglobe.ne.jp/~SDC9ki/page074.htmlをご覧ください。また、２００４年１２月から２００７年８月にわたるチリでの生活についてはhttp://www5f.biglobe.ne.jp/~SDC9ki/page008.htmlをご覧ください。 ところで私が大学時代に所属していたダイヴィングクラブ SDCのHPは http://www5f.biglobe.ne.jp/~SDC9ki/にあります。学生時代はチョッとヘンな（良く言えばユニーク）連中だなーと思っていましたが、今でもやっぱりヘンなおじさん連中です。でも私にとってはブエンアミーゴなのです。