Results 101 to 110 of about 21,549 (221)
Culturing Rutilus frisii kutum, a Fish Species of the Caspian Sea, to Marketable Size
Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 1997 Rutilus frisii kutum, belonging to family Cyprinidae, was reared using mono-culture and poly-culture (combined with Chinese carps) methods. The culturing process were carried out in earthen ponds from 22 May to 23 October in 1992 and 1993. Physical and chemical factors, transparency of the water, sanitary control and growth of the fishes were surveyed ...
openaire +3 more sources
Ecosystem Shock: The Devastating Impacts of Invasive Species on the Great Lakes Food Web [PDF]
, 2004 Gives an account of the changes to the Great Lakes ecosystem brought about by non-native aquatic species. Assesses the current and future impacts on fish communities and commercial fisheries.
Gwen White +2 more
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A historical review of the shad fisheries of North America [PDF]
, 1953 A review of the relative productivity and value of the shad fisheries of North America as reflected in recorded commercial catches. A review of reasons for the decline that are biological and socioeconomic.
Kolb, Haven, Mansueti, Romeo
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Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2016 The study is part of a research project on the southern shores of the Caspian Sea (Mazandaran waters- Kelarabad) was conducted in 2012. The aim of this study was to evaluate the effects of fish farming in cages on the distribution, abundance and biomass ...
F. Parafkandeh email ; M.A. Afraei Bandpei; A. Solaimani Rudy
doaj
, 2017 Whiteleg shrimp (Litopenaeus Vannamei) is one of the most important species for aquaculture development, because of tolerance and adaptation to different ecological conditions. The aim of this study was determine the bionormative parameters of vannamei shrimp culture using Caspian Sea brakish water in Mazandaran province and also possibility of ...
Pourgholam, Reza +6 more
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European Neighbourhood Policy:Strategy or Placebo?. CEPS Working Documents, No. 215, 1 November 2004 [PDF]
, 2004 The EU now faces an existential dilemma in the apparent choice to be made between over-extending the enlargement process to the point of destroying its own governability, versus denying one of its founding values to be open to all European democracies ...
Emerson, Michael
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China and the emerging Eurasian agenda: From special interests to strategic cooperation [PDF]
, 2001 Ferguson, R. James
core +2 more sources
Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2008 We collected 100 specimens of Persian sturgeon broodstocks propagated in Shahid Marjani Fish Culture Center to study internal parasites during March, April, and May 2005. The center is located in the southeast of the Caspian Sea. Three different parasite
S. Haghparast; A. Aghaei moghadam; A. Hajimoradlo; M. Pahlavani; K. Amini; A. Taheri; H. Mohmmadkhani
doaj
, 2018 Different studies on Litopenaeus vannamei (Boone, 1931) has performed in Iran, but less noted in water quality conditions. Water quality, in addition to creating optimal environment for the growth of vannamei shrimp, as well as cause the live food production and improve economic performance are produced.
Salehi, Aliakbar +11 more
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Oriental Studies, 2018 In the presented article the author describes the composition of the outstanding Russian and Polish politician, traveler and scientist Yan Pototsky «Travel to Astrakhan» which represents a valuable source on the ethnography of Kalmyks and other people of
Aleksey Burykin
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