trout egg Articles

  • The Effect of Creosote on Vitellogenin Production in Rainbow Trout (Oncorhynchus mykiss)

    Abstract  As part of a broader investigation into the effects of creosote treatments on the aquatic biota in pond microcosms, we examined the possible implications for vitellogenin (Vtg) production in Oncorhynchus mykiss [rainbow trout (RT)]. Vtg is the precursor of egg yolk protein and has emerged as a useful biomarker of exposure to estrogenic substances. Our a priori intent was to assess ...


    By Springer

  • PAHs, nitro‐PAHs, hopanes and steranes in lake trout from the Lake Michigan

    This study examines concentrations and risks of polycyclic aromatic hydrocarbons (PAHs), nitro‐PAHs (NPAHs), steranes and hopanes in lake trout collected in Lake Michigan. A total of 74 fish were collected in two seasons at three offshore sites. Σ9PAH concentrations in whole fish ranged from 223 to 1,704 pg/g wet weight (ww), and PAH concentrations and profiles were similar across season, site ...


    By John Wiley & Sons, Ltd.

  • Wild Rose State fish hatchery renovation case study

    Wisconsin Department of Natural Resources Wild Rose, Wisconsin, USA After more than 100 years, the Wild Rose hatchery in central Wisconsin was showing its age. Wastewater discharge to a nearby Class 1 trout stream was also a cause of concern. With HDR as its fisheries consultant, the state decided to replace the facility based on the need to address comprehensive ...


  • For lively fish in the water Oil-free generation of oxygen at fish farm - Case Study

    For 30 years, trout have been cultivated at the Winkelmann farm in Wietzendorf (Lower Saxony), southeast of the city of Soltau. What started out as a hobby ultimately became a business. Since then, the main goal has been the preparation of fish eggs, caviar (roe). The female trout are brought up in concrete semi-circulating basins and slaughtered after 26 to 29 months as salmon trout. The annual ...

  • U.S. Farm-Raised Finfish and Shellfish

    Seafood has long been recognized as an important component of a healthy diet. Seafood contains high quality, complete protein and an important array of nutrients, while it is low in calories, cholesterol, and saturated fats. The health benefits of omega-3 fatty acids found primarily in fish have been clearly documented. U.S. farm-raised seafood is an important center of the plate choice that can ...


    By Aquacare Environment Inc

  • Transgenic fish are ready for us. Are we ready for them?

    After decades of regulatory and legal challenges, AquaBounty aims to bring genetically engineered salmon to U.S. and Canadian markets next year. On a hill above the cold waters around Prince Edward Island, technicians painstakingly create fertilized Atlantic salmon eggs that include growth-enhancing DNA from two other fish species. The eggs will be shipped to ponds in the high rainforest of ...


    By Ensia

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