نتایج جستجو برای: Fish farms

تعداد نتایج: 125711  

2014
Thomas A. A. Adcock

While wind farms have no inherent storage to supply power in calm conditions, this paper demonstrates that large tidal turbine farms in channels have short-term energy storage. This storage lies in the inertia of the oscillating flow and can be used to exceed the previously published upper limit for power production by currents in a tidal channel, while simultaneously maintaining stronger curre...

Journal: :Proceedings. Mathematical, physical, and engineering sciences 2014
Ross Vennell Thomas A A Adcock

While wind farms have no inherent storage to supply power in calm conditions, this paper demonstrates that large tidal turbine farms in channels have short-term energy storage. This storage lies in the inertia of the oscillating flow and can be used to exceed the previously published upper limit for power production by currents in a tidal channel, while simultaneously maintaining stronger curre...

2014
Keshvad Hedayatianfard Mostafa Akhlaghi Hassan Sharifiyazdi

Five common tetracycline resistance genes tet(A), tet(B), tet(M), tet(O) and tet(S) were studied by polymerase chain reaction in 100 bacteria isolated from Iranian fish farms. In the antibiogram test most of the bacteria were either intermediately or completely resistant to tetracycline. Nine isolates out of 46 Aeromonas spp. contained either tet(A/M/S) resistant genes as follows: tet(A) in A. ...

Journal: :Marine pollution bulletin 2014
Leonardo Laiolo Alberto Barausse Zvy Dubinsky Luca Palmeri Stefano Goffredo Yury Kamenir Tariq Al-Najjar David Iluz

The northern Gulf of Aqaba is an oligotrophic water body hosting valuable coral reefs. In the Gulf, phytoplankton dynamics are driven by an annual cycle of stratification and mixing. Superimposed on that fairly regular pattern was the establishment of a shallow-water fish-farm initiative that increased gradually until its activity was terminated in June 2008. Nutrient, water temperature, irradi...

2011
Tim Dempster Pablo Sanchez-Jerez Damian Fernandez-Jover Just Bayle-Sempere Rune Nilsen Pal-Arne Bjørn Ingebrigt Uglem

BACKGROUND Ecological traps form when artificial structures are added to natural habitats and induce mismatches between habitat preferences and fitness consequences. Their existence in terrestrial systems has been documented, yet little evidence suggests they occur in marine environments. Coastal fish farms are widespread artificial structures in coastal ecosystems and are highly attractive to ...

روح الهی, شقایق, سلطانی, مهدی, شفیعی, شفیق, طاهری میر قائد, علی, محمدیان, سمیرا, پیرعلی خیرآبادی, اسماعیل,

Background & Objectives: Sterpococcosis/lactococcosis is an economically important zoonotic disease in aquaculture industry particularly in farmed rainbow trout. The annual loss due to the disease is tens millions US dollars. This descriptive study was aimed to identify the regional distribution of these economically important bacterial diseases in 50 farmed trout in Charmahal-va-Bakhteyari (25...

2012
RANA A. BROWN ERIK V. THUESEN WA

Aquaculture of the geoduck, Panopea generosaGould, 1850, has increased dramatically during the past decade in southern Puget Sound, WA, and the effects of these intertidal aquaculture geoduck beds on local fauna is mostly unknown. This study examined the species composition, relative abundances, and biodiversity indices of mobile benthic fauna in geoduck farm areas of southern Puget Sound. Surv...

2018
Tadaishi Yatabe Simon J More Fiona Geoghegan Catherine McManus Ashley E Hill Beatriz Martínez-López

Salmonid farming in Ireland is mostly organic, which implies limited disease treatment options. This highlights the importance of biosecurity for preventing the introduction and spread of infectious agents. Similarly, the effect of local network properties on infection spread processes has rarely been evaluated. In this paper, we characterized the biosecurity of salmonid farms in Ireland using ...

Journal: :iranian journal of veterinary research 2014
s. m. modarres mousavi behbahani m. akhlaghi h. sharifiyazdi

samples from the kidney of 100 diseased fish with signs of haemorrhagic septicemia and 50 samples from outlet water of fish farms were taken aseptically and cultured. in the laboratory, 75 colonies of gram-negative bacteria were biochemically diagnosed as motile aeromonads in our bacteriology laboratory unit using api 20e rapid identification system. the genotype identification using specific p...

2015
E. James Hehre J. J. Meeuwig

As the global demand for seaweed-derived products drives the expansion of seaweed farming onto shallow coral ecosystems, the effects of farms on fish assemblages remain largely unexplored. Shallow coral reefs provide food and shelter for highly diverse fish assemblages but are increasingly modified by anthropogenic activities. We hypothesized that the introduction of seaweed farms into degraded...

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