aquaculture environmental impact Articles

  • Rational application of chemicals in response to oil spills may reduce environmental damage

    Oil spills, for example those due to tanker collisions and groundings or platform accidents, can have huge adverse impacts on marine systems. The impact of an oil spill at sea depends on a number of factors, such as spill volume, type of oil spilled, weather conditions, and proximity to environmentally, economically, or socially sensitive areas. Oil spilled at sea threatens marine organisms, ...


    By John Wiley & Sons, Ltd.

  • Use of molecular markers for early warning detection of harmful algal blooms

    Harmful Algal Blooms (HABs) are a biological hazard for, and can also result from, aquaculture. To minimise economic and environmental impacts, an early warning detection system is needed. In this paper, two most commonly used molecular techniques are introduced with applications and examples involving work on the putatively toxic dinoflagellate Pfiesteria piscicida. Unlike previous reviews ...


    By Inderscience Publishers

  • Modifications of macrobenthos assemblages on land–based fish farm phytotreatment basins in the Orbetello lagoon

    In the Orbetello lagoon basin there are some intensive land–based fish–farming facilities which contribute to cause a significant cyclic development of the opportunistic chorophycea Ulva laetevirens, and consequent serious decay events in spring and summer. To minimise the nutrients' impact, fish farming was supplied with phytotreatment system. The purpose of this study was to evaluate the ...


    By Inderscience Publishers

  • Marine and coastal environment

    Although not always immediately apparent, our wellbeing as humans is affected by the environmental state of our seas, because many aspects of our lives benefit from the goods and services provided by well-functioning marine and coastal ecosystems. These ecosystem services offer a multitude of opportunities to provide an income for people for instance through production of fish and shellfish for ...

  • Re-oligotrophication as a challenge for tropical reservoir management with reference to Itaparica Reservoir, São Francisco, Brazil

    The process of reservoir eutrophication has been recognised as a central problem in tropical reservoir environmental quality. Effects of eutrophication are complex interactions involving a decrease in water quality, especially loss of aquatic biodiversity, occurrence of undesired species such as cyanobacteria with its cyanotoxins, mass development of macrophytes such as Egeria densa with its ...


    By IWA Publishing

  • Water quality in the Arosa Bay

    Background One of the great impediments to further development of shellfish aquaculture in the north-west region of Spain isa perception that industry expansion and tourism could have negative environmental effects on the coastal waters. Especially the bay around Villagarcia de Arosa is very famous because of its excellent areas for shellfish farming. The government of Spain is ...

  • Questions and Answers on the Directive on Maritime Spatial Planning

    Why do we need a Directive on Maritime Spatial Planning? The uncoordinated use of coastal and maritime areas creates competition for maritime space and is an inefficient use of marine resources. A lack of predictability regarding appropriate access to the maritime space has created an uncertain climate for investment. With rapidly increasing demand for maritime space for new ...

  • Ultrasound technology in water treatment: Algae control and reduction of biofilm formation

    Recent research projects have underlined the potential of ultrasound as a chemical free treatment in water-related applications. This article reviews the use of ultrasound produced by the LG Sonic technology, with a focus on wastewater, irrigation and aquaculture applications. Sound Sound can be described as mechanical energy transmitted by pressure waves in a material medium. Thus, sound can ...


    By LG Sonic

  • Valuing Plastic – The Case for Business Action

    Concern is growing over the threat that widespread plastic waste poses to marine life, with conservative estimates of the overall financial damage of plastics to marine ecosystems standing at US$13 billion each year, according to two reports released last week at the first United Nations Environment Assembly. The eleventh edition of the United Nations Environment Programme (UNEP) Year Book looks ...


    By GLOBE Foundation

  • Wetland Solutions for People and Nature

    Wetlands act as water sources, sinks and purifiers. They protect our shores. They are Earth’s greatest natural carbon stores. They support abundant and unique nature. But we have lost so much of our wetland treasure. And those that remain are under growing pressure. This makes people and nature vulnerable. It’s time to reverse the trend. ...


    By Wetlands International

  • Algae Control Solution for Chilean Salmon Industry?

    Since February 2016, Salmon farms in Chile have been suffering from an intensive Harmful Algal Bloom (HAB) which is causing massive numbers of salmon deaths. Ultrasonic technology combined with algae detection could be the solution for an industry facing economic losses totaling millions. Currently the Dutch algae control company, LG Sonic, is discussing the implementation of ultrasonic ...


    By LG Sonic

  • Coastal zones: achieving sustainable management

    Coastal zones are the link between land and the sea and are unique areas, highly diverse in species, habitats and ecosystems. They are environmentally sensitive and economically valuable, with ecosystems rich in biodiversity also providing benefits such as protection from the elements, food and opportunities for the generation of renewable energy. They are also extremely important to human ...

  • Tools to improve water quality

    This post is part of a series on World Water Week, an annual event designed to draw attention to and discuss global water issues. Read more posts in this series. Agricultural production often comes at the expense of water quality. As my colleague, Mindy Selman, ...

  • To build a sustainable world, academics need to tear down the Ivory Tower

    Avoiding societal collapse means building bridges between science and the rest of the world. Until recently, Earth was so big compared with humanity’s impacts that its resources seemed limitless. But that is no longer the case. Thanks to rapid growth in both human population and per capita consumption, we are now on the edge of irrevocable damage to our planetary life ...


    By Ensia

  • Ocean science for sustainable development: Facts and figures

    Sarah Grimes explores why we need good ocean monitoring, how to get it, and why it still fails Small Island Developing States. Oceans are a critically important component of the Earth system, supporting ecosystem and human health. They regulate the weather and climate; are essential for producing freshwater; and soak up ...


    By SciDev.Net

  • Questions and answers on the Commission Communication `Towards a Circular Economy` and the Waste Targets Review

    What is a circular economy? A circular economy preserves the value added in products for as long as possible and virtually eliminates waste. It retains the resources within the economy when a product has reached the end of its life, so that they remain in productive use and create further value. It may involve: Increasing the time products deliver their service before ...

  • Eco-Industrial Development: The case of the United States

    Issue: Businesses, local government and community groups are all seeking new answers for how to assure greater compatibility between environmental and economic opportunities. One possible contribution to meeting this challenge is a new phenomenon capturing the imagination of those concerned with responsible economic development in the United States. This phenomenon is known by various names, ...


  • Taming taste and odor (T & O) problems in a water treatment plant

    Taming Taste & Odor (T&O) Problems Some taste and odors are caused by mineral constituents in the water, e.g. excess chlorine and hydrogen sulfide. However the majority of taste and odor are the result of biologic activity. Spring turnover of lakes and algal blooms are responsible for Blue-green algae (Cyanobacterium), Green algae and diatoms that introduce filter clogging organisms ...


    By Jenfitch, LLC

  • Sustainable food production: Facts and Figures

    Farming must feed more people more sustainably. Zareen Bharucha looks at scientific approaches past and present. Advances in agricultural science and technology (S&T) have contributed to remarkable increases in ...


    By SciDev.Net

  • The Global Food Challenge Explained in 18 Graphics

    The world is projected to hold a whopping 9.6 billion people by 2050. Figuring out how to feed all these people—while also advancing rural development, reducing greenhouse gas emissions, and protecting valuable ecosystems—is one of the greatest challenges of our era. So what’s causing the global food challenge, and how can the world solve it? We begin to answer these questions ...

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