Fish Breeding Articles

  • Revitalizing a hog waste lagoon

    A North Carolina hog grower with a brood barn of 200 full grown sows contacted Reliant Water Technologies to see if we could assist him with one of his waste lagoons. All of his lagoons were identical, measuring only .05 acres in size, and designed to be 8 feet deep. When we arrived at the farm all of the lagoons looked like the one in Figure 1. The lagoon that he chose for us to work with was ...


    By Reliant Water Technologies

  • Researchers around the world are learning from indigenous communities. Here’s why that’s a good thing.

    From Canada’s Far North to Australia, pursuing a more respectful relationship between science and traditional knowledge In the rugged Sahtú Region of Canada’s Northwest Territories, a district so remote that in winter only a single treacherous ice road connects it to the outside world, life revolves around caribou. For millennia, the Dene people lived as nomads, ...


    By Ensia

  • CRISPR is coming to agriculture — with big implications for food, farmers, consumers and nature

    Gene editing offers dramatic advances in speed, scope and scale of genetic improvement. It also offers an opportunity for more nuanced GMO governance. Very few technologies truly merit the epithet “game changer” — but a new genetic engineering tool known as CRISPR-Cas9 is one of them. Since we first developed the ability to alter the genetic material inside a plant or animal in ...


    By Ensia

  • The Role of Mangroves in Fisheries Enhancement

    In 2011 humans caught and consumed 78.9 million tonnes of fish, crustaceans, molluscs and other species groups from the world’s oceans, accounting for 16.6% of the world’s animal protein intake (FAO 2012). This is projected to increase further, to over 93 million tonnes by 2030 (World Bank 2013). Global demand for fish products has increased dramatically over recent decades. Fishing ...


    By Wetlands International

  • 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 ...

  • Fishing for a Solution

    As writer Rowan Jacobsen explores in our recent feature “Has Meat Met Its Match?,” animal agriculture’s hefty environmental footprint is creating interest in exploring ways to meet humans’ growing appetite for animal protein that extend beyond beef, chicken and pork. In some places, that ...


    By Ensia

  • Previous exposure of predatory fish to a pesticide alters palatability of larval amphibian prey

    Habitat preferences of organisms are reliant upon a variety of factors. Specifically with amphibians, preferences can depend on factors such as food availability, water quality, or the presence of potential predators. Because some amphibians breed in permanent bodies of water (e.g., ponds), the threat of predation (e.g., from fish) is constant. Thus, some amphibians are unpalatable to many ...


    By John Wiley & Sons, Ltd.

  • Effects of the herbicide imazapyr on juvenile Oregon spotted frogs

    Conflict between native amphibians and aquatic weed management in the Pacific Northwest is rarely recognized because most native stillwater‐breeding amphibian species move upland during summer, when herbicide application to control weeds in aquatic habitats typically occurs. However, aquatic weed management may pose a risk for aquatic species present in wetlands through the summer, such as the ...


    By John Wiley & Sons, Ltd.

  • Intellectual property and Freedom To Operate in the flax breeding world: Canada in the global context

    Through one-on-one in-depth interviews of Canadian public sector flax breeders, this study explores issues around Intellectual Property (IP) and Freedom To Operate (FTP) in flax breeding from a Canadian perspective. The results are supported by a scan of flax breeding efforts worldwide, an in-depth patent analysis (using Patent Lens and the US Patent and Trademark Office (USPTO) databases) and a ...


    By Inderscience Publishers

  • A spatially and temporally explicit risk assessment for salmon from a prey base exposed to agricultural insecticides

    This risk assessment applied a framework for determining probable co‐occurrence of juvenile spring Chinook salmon (Oncorhynchus tshawytscha) with agricultural pesticides in the Willamette Basin, Oregon (Teply et al. this issue) to characterize risk to the threatened population. The assessment accounted for spatial and temporal distribution of 6 acetylcholinesterase‐inhibiting insecticides in ...


    By John Wiley & Sons, Ltd.

  • A spatially and temporally explicit model for determining the exposure of juvenile salmon to agricultural pesticides in freshwater

    In this paper, we present a novel approach for determining the probable co‐occurrence of juvenile salmon or steelhead with agricultural pesticides and apply it to spring Chinook (Oncorhynchus tshawytscha) salmon in the Willamette Basin, Oregon. We adapted a published exposure analysis framework by explicitly considering fish migration among habitat units and assuming that habitat use is ...


    By John Wiley & Sons, Ltd.

  • Aquaculture case study

    Customer: USDA-ARS Catfish Genetics Research Unit,USA Casey C. Grimm from the Southern Regional Research Centre New Orleans, USA. This research was executed by Ph.D. Paul V. Zimba from the USDA-ARS Catfish Genetics Research Unit, USA and Casey C. Grimm from the Southern Regional Research Centre New Orleans, USA, utilizing the LG Sonic ultrasound technology in channel catfish production. An ...


    By LG Sonic

  • AZUD solutions to fish farms

    All the elements in the exploitation guarantee that larvae, the juvenile and adult breeding of bivalves keep the quality conditions inside the correct values, which allow a high reproduction and growing rates. ...


    By Sistema Azud, S.A.

  • Outcrossing in early-stage spring wheat breeder seed development

    Outcrossing (OC) during the initial stages of spring wheat (Triticum aestivum L.) breeder seed development ('head-rowing') may lead to off-types appearing in later generations of pedigreed seed. The objective of this research project was to measure OC in a simulated short (1.3 m) breeder row nursery of spring wheat. Rows of four cultivars known to differ in OC potential were grown at up to 12 ...

  • Spanish Fish Farmer chooses LIT

    Spanish fish farmer chooses LIT-UV Isidro de la Cal is a Spanish group of companies that are active in the fish industry. The company controls the entire process of farming, capturing, processing and finally selling the end product to the stores where consumers buy the various fish products. The fish that is processed by Isidro de la Cal comes from various national, mainly Galician, and ...

  • High Power Drives for Vineyard

    High Power VLT® AQUA Drives supply the vertical turbine pumps for two main water supply wells at Seven Hills Vineyards in Milton Freewater, Oregon.The two main water supply wells consist of one 250 kW vertical turbine pump and one 630 kW vertical turbine pump. The 250 kW pump can deliver water to the east and middle ponds, while the 630 kW pump can deliver water to all three ponds. Both pumps ...

  • Identification of Fish-Eating Birds

    There are 61 species in 14 families of fish-eating birds in Iran. The fish-eating birds of the north of Iran belong to 41 species in 10 families which include 67.2 percent of total fish eating bird species and 71% of fish-eating bird’s family of ...


    By University of Tehran

  • Individual Rationality and the “Zonal Attachment” Principle: Three Stock Migration Models

    Shared fish stocks migrate across borders between different countries’ exclusive economic zones. This paper discusses the individual rationality of fish-sharing agreements based on the zonal attachment of such stocks. Three types of migrations are considered: (i) a common stock that grows and reproduces and is then distributed in given proportions between two countries’ zones at the beginning of ...


    By Springer

  • A review of vertebrate community composition in seasonal forest pools of the northeastern United States

    Abstract  Seasonally-flooded wetlands occur throughout the world and provide important foraging, resting, and breeding habitat for a broad array of organisms. This review summarizes our current understanding of vertebrate community composition at seasonal forest pools in the northeastern United States. These wetlands typically have hydroperiods that range from temporarily flooded to ...


  • Mercury Concentrations in Bicknell’s Thrush and Other Insectivorous Passerines in Montane Forests of Northeastern North America

    Anthropogenic input of mercury (Hg) into the environment has elevated risk to fish and wildlife, particularly in northeastern North America. Investigations into the transfer and fate of Hg have focused on inhabitants of freshwater aquatic ecosystems, as these are the habitats at greatest risk for methylmercury (MeHg) biomagnification. Deviating from such an approach, we documented MeHg ...


    By Springer

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