—Juvenile chinook salmon Oncorhynchus tshawytscha were subjected to handling and tagging protocols typical of normal hatchery operations and monitored for their physiological response to stress. Treatments included coded-wire-tagging, counting, ventral fin clipping, adipose fin clipping, and a procedure simulating a pond split. Treatment fish were also subjected to a standardized stress challen...

In the absence of purified standards of toxins from Pfiesteria species, appropriately conducted fish bioassays are the "gold standard" that must be used to detect toxic strains of Pfiesteria spp. from natural estuarine water or sediment samples and to culture actively toxic Pfiesteria. In this article, we describe the standardized steps of our fish bioassay as an abbreviated term for a procedur...

The study of interaction between fish cage culture and sediment population dynamics heterotrophic bacteria in the southern Caspian Sea (Nowshahr region)

Streptococcus iniae is one of the most important agents that causes high mortality and losses in rainbow trout farms in Iran and the world. These bacteria can affects the consumers and people who deal with aquaculture via affected fish. So, viability of this bacterium in frozen fish and fish product can be useful for health care of consumers. A total of 90 rainbow trout, with average weight of ...

Çalışmada, kültür deniz balıkları işleme endüstrisi artıklarından formik asit hidrolizi ile balık silajı ve yağı üretilmesi, elde edilen ürünlerin kimyasal mikrobiyolojik kalitesinin tespiti yağının yağ kompozisyonun belirlenmesi amaçlanmıştır. Bu kapsamda yapılan çalışmalar sonucunda silajının nem içeriği %80,40, tüm aşamalarda ürün önemli göstergelerinden birisi olan pH değerinin de 3,62 3,89...

fish oil is the important fat source in fish nutrition. high demand for fish oil and low global supply arise a need of alternative oils in fish culture. plant oils are a good candidate in this case. the aim of the present study was to compare the efficacy of fish oil and linseed oil on growth and stress resistance of tiger barb ( puntius tetrazona ) larvae. artemia nauplii were enriched by 2.5,...

fast development of aquaculture and increasing fish demand lead to intensification of fish culture, magnifying stressors for fish and thus heightening the risk of disease until now, chemotherapy has been widely used to prevent and treat disease outbreaks, although use of chemical drugs has multiple negative impacts on environment and human health e.g. resistant bacterial strains and residual ac...