Oncorhynchus

Rainbow trout (Oncorhynchus mykiss) is one of the most cultured fish species in the worldwide aquaculture industry, such as China, Norway and Turkey for its fast growth and adapting to low temperature[1]. The market demand for rainbow trout is heavy meanwhile the natural resources are limited, all that leads to the intensification of production system. The intensive farming with the overcrowding space and poor water quality is likely to make the physiological changes and increase the susceptibility

Marr, Hansen, Meyer, Cacela, Podrabsky, Lipton and Bergman (1998) investigated the effects of cobalt and copper to rainbow trout (Oncorhynchus mykiss). These two are heavy metals that are obtained from mining operations. Marr et al. (1998) focused on the effects of cobalt but in order to simulate environmental conditions, such as run offs caused by mining operations, they included copper in their study. Due to insufficient toxicity studies of cobalt and copper, they deemed it significant to find

Introduction Rivers and streams receiving urban runoff have been shown to be toxic to aquatic species (e.g. H. azteca), due to the presence of pyrethroids (Budd et al., 2007; Weston and Lydy, 2010; Weston et al, 2014). These pyrethroids are greatly toxic, with acute species mortality possible at even small concentrations of one part per trillion (Weston and Jackson, 2009), yet urban runoff regularly contains concentrations greater than 20 parts per trillion (Weston and Lydy, 2012). A significant

Zoarces americanus antifreeze protein promoter (opAFP), opAFP-ccGH, grew 1.4 to 1.6 fold larger than their non-transgenic siblings, and transgenic channel catfish containing channel catfish growth hormone (ccGH) cDNA, driven by the rainbow trout Oncorhynchus mykiss metallothionein promoter (rtMT), rtMT-ccGH, grew 1.35 to 1.8 fold larger than their non-transgenic siblings (Table 2; Fig. 10a) (P < 0.0001). However, there is no significant between transgenic of opAFP-ccGH family number 1 and non-transgenic

through the turn of the century until researchers finally saw that the fish were reproducing. Out of the six species introduced, there are only two types of fish still living in Crater Lake today which are the Kokanee Salmon (Oncorhynchus nerka) and the Rainbow Trout (Oncorhynchus mykiss). The Kokanee Salmon is a dwarf fish. These types of fish are the best fish in the lake. The last recorded stockings were silver salmon in 1937 and rainbow trout in 1941. Today there are thousands of fish in Crater

The California State Fish: the magnificent golden trout. It flawlessly glides through the water, its golden underbelly and blue-green back cloaking its body, making it one with the water. Appointed in 1947, the golden trout, or Oncorhynchus Mykiss Agua Bonita, are native to California, having populated only a handful of icy streams in the Sierra. However, this concoction of color is threatened, and every year, their population lessens. The golden trout’s skin is a gradient, ranging from deep blue

Assessing rising invertebrate indicator species presence using the kick-and-sweep method at Laurel Creek in Waterloo Graham Mantha 20553752 Keywords Benthic Invertebrate: commonly used to provide information on the status of a water system. Having a short life span and a limited range of motion, this organism can do little to avoid pollution and therefore provides significant data concerning anthropogenic impacts. (Beatty et al., 2006) Indicator Species: an organism that provides information

treated with (Thy+ Ch) compared to the control. Similar results were reported by (Serdaroğlu and Felekoğlu, 2005, Ozogul et al., 2010; Uçak et al., 2011; Emir Çoban et al., 2014). Moreover, an increase in FFA results from the enzymatic hydrolysis and lipid oxidation (Ashton, 2002, Uçak et al., 2011). Gomez-Guillén et al., (2009) investigated the effect of gelatin-based films with incorporated aqueous extracts of either oregano or rosemary on cold-smoked sardine, recorded a significant between samples

Chinook salmon (known by its scientific name as Oncorhynchus tshawytscha) is the largest species out of the Pacific salmon genus, with an individual chinook measured over 120 pounds (fishwatch.gov, 2014). Often known by the name as “king salmon”, it is one of the most expensive salmons as this species of the Pacific salmon is not abundant in North America. This salmon is originated in rivers ranging from Central California to northwest Alaska, but can also be found outside the United States such

Lipids are the generic names assigned to a group of fat soluble compounds found in the tissues of plants and animals and are broadly classified as: fats, phospholipids, sphingomyelins, waxes and sterols. Fats are the fatty acid esters of glycerol and are the primary energy depots of animals. Fish have the unique capability of metabolizing lipid and fats readily and as a result, can exist for long periods of time under conditions of food deprivation. In general lipids in marine fish species contain