Results 91 to 100 of about 1,478 (178)

ラオス南部における水産資源管理 [PDF]

open access: yes, 2016
 ラオス南部のメコン河集水域における水産資源管理について1990 年代から2005 年の調査時点までの急激な変化を追跡した。国際組織による上からの水産資源管理の方策が導入されたが、村落の実情に合わないので、欠点が多くプロジェクトとしてはおおむねうまくいった点と成功しなかった面が浮き彫りになった。これにかわって、2000 年くらいから村落を基盤とした村民のための管理方式を採用する動きがでてきた。もっとも、これはチャンパサック州のメコン河本流域の話であり ...
秋道 智彌
core  

Residual soil-applied zinc improves grain zinc nutritional quality of maize grown under contrasting soil types in Malawi

open access: yesFrontiers in Soil Science
IntroductionA proper understanding of the residual value of zinc (Zn) is essential for sustainable biofortification of food crops. This study hypothesized that Zn applied at rates higher than the current national recommendation would have significant ...
Lester Botoman   +11 more
doaj   +1 more source

KHả NăNG Sử DụNG CáC LOạI SINH KHốI ARTEMIA TRONG ƯƠNG NUÔI MộT Số LOàI Cá NƯớC NGọT

open access: yesTạp chí Khoa học Đại học Cần Thơ, 2010
Ba loài cá nước ngọt tiêu biểu của vùng đồng bằng sông Cửu Long (ĐBSCL) gồm cá lóc đen (Channa striata), cá thát lát còm (Notopterus chitala) và cá bống tượng (Oxyeleotris marmorata) có trọng lượng và chiều dài ban đầu là 0,35± 0,08g và 3,4± 0,3cm;  0,45±
Nguyễn Thị Hồng Vân   +3 more
doaj  

The Impact of Investments in Maize Research and Dissemination in Zambia Part I: Main Report [PDF]

open access: yes
Michigan State University (MSU) is currently assessing the impact of agricultural research on various commodities in seven African countries: Cameroon (maize, cowpea, sorghum), Kenya (maize, wheat), Malawi (maize), Mali (maize), Niger (sorghum, cowpea ...
Chitala, George M.   +2 more
core   +1 more source

Fisheries Sciences [PDF]

open access: yes, 2015
The history of fisheries research in India goes back to the early 19th century, when dried or preserved material was sent to the Museums of Natural History in England and other European countries for identification and cataloguing (Silas, 2003).
Ayyappan, S   +7 more
core  

Fish fauna of Tripura [PDF]

open access: yes, 1983
The ichthyofauna collected from the sub Himalayan region of Tripura from 1976 to 1981 reveals the presence of 93 species of fish belong to 26 families and 11 orders.
Lipton, A P
core  

Home - About - Disclaimer - Privacy