fish damage Articles
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Installing the pHishGard
The pHionics pHishgard™ is a device that easily slips over the electrode and provides additional protection from large fish scraping or otherwise damaging the electrode tip with their fins. It works by expanding and contracting at the top via handles, similar to scissors. This allows the pHishgard™ to lock in the groove at the top of the sensor and stay securely in place when force ...
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Project Harrison Hot Springs, Canada - Case Study
Landustrie supplied two LANDY Archimedes screw pumps for flood control in the village of Harrrison Hot Springs, Fraser Valley, Canada. The screw pumps replaced the existing axial pump and had to meet increased environmental requirements and ensure fish survival rate exceeding 90%. For this project a special wristband around the outside diameter of the screw has been developed by Landustrie. This ...
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Managing environmental impacts of fishing: input controls versus outcome-oriented approaches
Fishery management has focused primarily on limiting the total catch of key target species to sustainable levels, but fishery managers and the public are becoming increasingly concerned with environmental impacts of fishing such as damage to habitat and bycatch of non-target species, particularly marine mammals and seabirds. There are two main approaches to managing environmental impacts of ...
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Monitoring exposure of brown bullheads and benthic macroinvertebrates to sediment contaminants in the Ashtabula River before, during, and after remediation
In 2007, approximately 420,500 cubic meters of contaminated sediment were removed from the Ashtabula River by dredging. The primary objective of this study was to monitor contaminant exposure in fish and macroinvertebrates before, during, and following dredging. This was done by measuring tissue concentrations of polychlorinated biphenyl (PCB) and polycyclic aromatic hydrocarbon (PAH) in brown ...
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Time to stop losing ocean data to vandalism
More must be done to prevent damage of ocean data buoys that costs money, vital data — and lives, say Sidney Thurston and M. Ravichandran. The global community relies on a rapidly expanding ocean observing network to understand the climate and ecosystems, to help warn against ocean-borne hazards such as tsunamis and storm surges caused by cyclones, and to support sea rescue missions. ...
By SciDev.Net
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Perspectives from the field: Ecosystem-based approaches to disaster risk reduction
UNEP - Starting this week at the Third World Conference on Disaster Risk Reduction, the international community is expected to approve the next ten year plan to strengthen the resilience of countries and communities against disasters. The task at hand is a critically important one, particularly as the number of people affected by disasters has already doubled over the past decade and is expected ...
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Protecting Endangered Coral Reefs
What Reefs Do for Us Coral reefs are the source of multiple important benefits—to humans, animals, oceans, and the entire planet. Occupying less than 1% of all ocean spaces, reefs provide habitat for a full 25% of all marine species. Fish, mollusks, worms, crustaceans, echinoderms, sponges, and other marine animals all thrive in healthy reef habitats, which provide those species with ...
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Control Algae and Improve the Water Quality in Waste Stabilization Ponds
Due to population growth, accelerated urbanisation and economic development, the quantity of waste water generated is increasing globally. Mainly in low-income areas, a large proportion of the waste water is discharged directly in the environment. When the waste water is treated, the treatment plants may not remove certain pollutants that can have a negative impact on the people and ecosystem. ...
By LG Sonic
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Study: Wastewater treatment improves fish health
A decade-long study by Canadian researchers concludes that improved water treatment benefits fish populations. University of Waterloo researchers found that within a year after an upgrade to one of the area’s municipal wastewater treatment plants, there was a 70 percent decrease in the occurrence of intersex fish in Ontario’s Grand River. Within three years there was a full recovery ...
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A Spill on Tradition - How Lubicon Lake Nation is coping with disaster
Resource development often conflicts with traditional land use and can be a source of frustration for many Aboriginal communities focused on protecting their traditional territories. In areas where oil and gas development is taking place, oil spills are not uncommon and many companies struggle to find local capacity to assist them in establishing both preventative and reactive planning to ensure ...
By ECO Canada
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Air pollution control regulations and possible damage to the food chain
According to the UN report, the application of scrubbers to reduce air pollution may cause an increase of particulate pollutants discharged into the sea. To be more precise, the International Maritime Organization claims that new air pollution control regulations introduced earlier this year could damage people by contaminating fish and crustaceans with toxins. The thing is that at the moment ...
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Which Type of Pond Liner is Best
The two types of geomembrane for breeding have their own advantages. The two main functions of the two kinds of geomembrane are anti-seepage. If only from the perspective of anti-leakage, their effect is the same. They are often required to have more functions when people use them. Also to the function of anti-seepage, other functions determine their use places. Let me explain to you what are ...
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HDPE Geomembrane Pond Liner for Shrimp Pond Project in Kenya
Case Study: Location: Kenya Product:0.75mm HDPE Geomembrane Pond Liner Application: Shrimp Pond Project Status Quo: Kenya faces the Indian Ocean to the east, with many ports and pollution-free, suitable for the development of marine fisheries. To the southwest is Lake Victoria, which is the largest freshwater lake in Africa. Kisumu, an important town in the southwest, is an important fishery base ...
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Fish Pond Anti-seepage Geomembrane Liner
Introduction Of Fish Pond Anti-Seepage Geomembrane Liner Whether it is used for ornamental fish ponds or fish farms, fish pond anti-seepage geomembrane, as a new type of anti-seepage and waterproof material, has anti-seepage, anti-corrosion properties, good chemical stability, high and low-temperature resistance, asphalt, oil and tar resistance, acid and alkali resistance, young, etc., and can ...
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Top International News in Chemical Policy and Regulation
AUSTRALIA Australia Releases Third Consultation Paper Concerning NICNAS Reform: On April 29, 2016, the National Industrial Chemicals Notification and Assessment Scheme (NICNAS) published the third consultation paper on its reform initiative. This consultation paper summarizes the main stakeholder comments on the second consultation paper, and builds on the themes in the second consultation paper ...
By Acta Group
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