Journal ArticleDOI
Integrating seaweeds into marine aquaculture systems: a key toward sustainability
Thierry Chopin,Alejandro H. Buschmann,Christina Halling,Max Troell,Nils Kautsky,Amir Neori,George P. Kraemer,José A. Zertuche-González,Charles Yarish,Christopher D. Neefus +9 more
TLDR
By adopting integrated polytrophic practices, the aquaculture industry should find increasing environmental, economic, and social acceptability and become a full and sustainable partner within the development of integrated coastal management frameworks.Abstract:
The rapid development of intensive fed aquaculture (e.g. finfish and shrimp) throughout the world is associated with concerns about the environmental impacts of such often monospecific practices, especially where activities are highly geographically concentrated or located in suboptimal sites whose assimilative capacity is poorly understood and, consequently, prone to being exceeded. One of the main environmental issues is the direct discharge of significant nutrient loads into coastal waters from open-water systems and with the effluents from land-based systems. In its search for best management practices, the aquaculture industry should develop innovative and responsible practices that optimize its efficiency and create diversification, while ensuring the remediation of the consequences of its activities to maintain the health of coastal waters. To avoid pronounced shifts in coastal processes, conversion, not dilution, is a common-sense solution, used for centuries in Asian countries. By integrating fed aquaculture (finfish, shrimp) with inorganic and organic extractive aquaculture (seaweed and shellfish), the wastes of one resource user become a resource (fertilizer or food) for the others. Such a balanced ecosystem approach provides nutrient bioremediation capability, mutual benefits to the cocultured organisms, economic diversification by producing other value-added marine crops, and increased profitability per cultivation unit for the aquaculture industry. Moreover, as guidelines and regulations on aquaculture effluents are forthcoming in several countries, using appropriately selected seaweeds as renewable biological nutrient scrubbers represents a cost-effective means for reaching compliance by reducing the internalization of the total environmental costs. By adopting integrated polytrophic practices, the aquaculture industry should find increasing environmental, economic, and social acceptability and become a full and sustainable partner within the development of integrated coastal management frameworks.read more
Citations
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Journal ArticleDOI
Integrated aquaculture: rationale, evolution and state of the art emphasizing seaweed biofiltration in modern mariculture
Amir Neori,Thierry Chopin,Max Troell,Max Troell,Alejandro H. Buschmann,George P. Kraemer,Christina Halling,Muki Shpigel,Charles Yarish +8 more
TL;DR: Plants can drastically reduce feed use and environmental impact of industrialized mariculture and at the same time add to its income through nutrient-assimilating photoautotrophic plants, which counteract the environmental effects of the heterotrophic fed fish and shrimp and restore water.
Journal ArticleDOI
Ecological engineering in aquaculture — Potential for integrated multi-trophic aquaculture (IMTA) in marine offshore systems
Max Troell,Max Troell,Alyssa Joyce,Alyssa Joyce,Alyssa Joyce,Thierry Chopin,Amir Neori,Alejandro H. Buschmann,Jian-Guang Fang +8 more
TL;DR: The development of offshore IMTA requires the identification of environmental and economic risks and benefits of such large-scale systems, compared with similarly-scaled monocultures of high trophic-level finfish in offshore systems.
Journal ArticleDOI
Seaweed production: overview of the global state of exploitation, farming and emerging research activity
Alejandro H. Buschmann,Carolina Camus,Javier Infante,Amir Neori,Alvaro Israel,María C. Hernández-González,Sandra V. Pereda,Juan Luis Gómez-Pinchetti,Alexander Golberg,Niva Tadmor-Shalev,Alan T. Critchley +10 more
TL;DR: There are some fundamental and very significant hurdles yet to overcome in order to achieve the potential contributions that seaweed cultivation may provide the world, and an outline for future needs is provided in the anticipation that phycologists around the world will rise to the challenge.
Journal ArticleDOI
The genus Laminaria sensu lato : recent insights and developments
Inka Bartsch,Christian Wiencke,Kai Bischof,Cornelia Buchholz,Bela H. Buck,Anja Eggert,Peter Feuerpfeil,Dieter Hanelt,Sabine Jacobsen,Rolf Karez,Ulf Karsten,Markus Molis,Michael Y. Roleda,Hendrik Schubert,Rhena Schumann,Klaus Valentin,Florian Weinberger,Jutta Wiese +17 more
TL;DR: This review about the genus Laminaria sensu lato summarizes the extensive literature that has been published since the overview of the genus given by Kain in 1979, and covers recent insights into phylogeny and taxonomy, and discusses morphotypes, ecotypes, population genetics and demography.
Journal ArticleDOI
Integrated mariculture: asking the right questions
Max Troell,Max Troell,Christina Halling,Amir Neori,Thierry Chopin,Alejandro H. Buschmann,Nils Kautsky,Nils Kautsky,Charles Yarish +8 more
TL;DR: This study examines the major findings and methodology aspects from 28 peer-reviewed studies on marine aquaculture systems integrating fed and extractive organisms to analyse the degree of relevance these findings have for large-scale implementation of integrated mariculture practices.
References
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Journal ArticleDOI
Effect of aquaculture on world fish supplies
Rosamond L. Naylor,Rebecca J. Goldburg,Jurgenne H. Primavera,Nils Kautsky,Malcolm Beveridge,Jason Clay,Carl Folke,Jane Lubchenco,Harold A. Mooney,Max Troell +9 more
TL;DR: If the growing aquaculture industry is to sustain its contribution to world fish supplies, it must reduce wild fish inputs in feed and adopt more ecologically sound management practices.
Journal ArticleDOI
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Journal ArticleDOI
The effect of salmon farming on the benthos of a Scottish sea loch
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Journal ArticleDOI
Effects of mussel aquaculture on the nitrogen cycle and benthic communities in Kenepuru Sound, Marlborough Sounds, New Zealand
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Journal ArticleDOI
Integrated marine cultivation of Gracilaria chilensis (Gracilariales, Rhodophyta) and salmon cages for reduced environmental impact and increased economic output
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