نتایج جستجو برای: aquaculture techniques

تعداد نتایج: 638453  

Journal: :Applied and environmental microbiology 2008
Naglaa M Mohamed Julie J Enticknap Jayme E Lohr Scott M McIntosh Russell T Hill

The changes in bacterial communities associated with the marine sponge Mycale laxissima on transfer to aquaculture were studied using culture-based and molecular techniques. M. laxissima was maintained alive in flowthrough and closed recirculating aquaculture systems for 2 years and 1 year, respectively. The bacterial communities associated with wild and aquacultured sponges, as well as the sur...

2012
A. Doaa M. Atia Faten H. Fahmy Ninet M. Ahmed Hassen T. Dorrah

Temperature is one of the most principle factors affects aquaculture system. It can cause stress and mortality or superior environment for growth and reproduction. This paper presents the control of pond water temperature using artificial intelligence technique. The water temperature is very important parameter for shrimp growth. The required temperature for optimal growth is 34C, if temperatur...

2005
Reginald B. Blaylock Daryl S. Whelan

Since its inception, aquaculture has developed into a major industrial complex, a major component of which is cage culture. Along with the growth, however, problems arose. Translocations of animals and diseases, as well as concerns over environmental effects limited the growth of the industry. The concept of fish health management whereby the host, pathogen, and environment are proactively mana...

Journal: :تحقیق در علوم شیلاتی 0
f.a.h nur a christianus z mute harah f.f ching r shapawi c.r saad

hippocampus barbouri is one of the seahorse species found in shallow water of malaysia. it is used as known as a global trade species in ornamental fish industry. to date, there is no documented report on seahorse aquaculture especially for h. barbouri in malaysia even in southeast asia region. seahorse aquaculture should be considered as an alternative source of seahorses to reduce the pressur...

Journal: :Indian journal of experimental biology 2005
A D Diwan

One problem in aquaculture is obtaining brood because many commercially important species are incapable of spontaneous maturation under artificial conditions. Commercial shrimp hatcheries commonly use eyestalk ablation to stimulate gonadal maturation in shrimps. Research has been conducted on the inhibition of reproductive maturation by hormones originating in the eyestalk glands and on other e...

2009
MICHAEL J. LEAVER JOSÉ M. BAUTISTA BJÖRN THRANDUR BJÖRNSSON ELISABETH JÖNSSON GRIGORIOS KREY DOUGLAS R. TOCHER BENTE E. TORSTENSEN

Lipids are the predominant source of energy for fish. The mechanisms by which fish allocate energy from lipids, for metabolism, development, growth and reproduction are critical for understanding key life history strategies and transitions. Currently, the major lipid component in aquaculture diets is fish oil (FO), derived from wild capture fisheries that are exploited at their maximum sustaina...

2015
Stuart E. Hamilton John Lovette

In this paper we estimate the living carbon lost from Ecuador's mangrove forests since the advent of export-focused shrimp aquaculture. We use remote sensing techniques to delineate the extent of mangroves and aquaculture at approximately decadal periods since the arrival of aquaculture in each Ecuadorian estuary. We then spatiotemporally calculate the carbon values of the mangrove forests and ...

2002
T. C. Telfer

As mariculture production increases in both northern and southern Europe its conflict with other users of the marine environment, for space and other environmental services, becomes ever greater. Implications of these increases and conflicts require that careful environmental management of aquaculture practices be considered, which rely heavily on the process of monitoring. Monitoring studies f...

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