Welfare Interventions in Flatfish Recirculation Aquaculture Systems and Their Economical Implications

Schneider, Oliver; Schram, E.; Kals, J.; Heul, Jan van der; Kankainen, Markus; Mheen, H. van der

doi:10.1080/13657305.2012.729252

Cited by 9 publications

(4 citation statements)

References 13 publications

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“…Schneider et al . () found that a protein skimmer used in a flatfish RAS could increase profit through fish performance and improved fish welfare due to better water quality.…”

Section: Physical Filtration Equipments Of Rassmentioning

confidence: 99%

A review on the research status and development trend of equipment in water treatment processes of recirculating aquaculture systems

Xiao

Wei

et al. 2018

Reviews in Aquaculture

149

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Recirculating aquaculture systems (RASs) are intensive aquaculture facilities models that depend on diverse water treatment equipment to maintain good water quality and produce safe and healthy high-quality aquatic products. This article combines the main farming-mode of water purification recirculating processes with recent cultivation-mode scientific research and the current development of the recirculating aquaculture industry. Harmful substances are present in aquaculture wastewater due to large quantities of residual particulate matter such as residual feed, faeces and small suspended solid particles, as well as ammonia, nitrite, bacteria and carbon dioxide (CO 2 ), in the water. These harmful substances seriously affect the quality of aquatic products, so water treatment equipment is needed to remove these substances, add oxygen (O 2 ) to the water and adjust the temperature of the water to ensure a high-quality environment for fish survival. This article reviews the equipment for physical filtration (e.g. solid-liquid separation equipment, microscreen drum filter and foam fractionator) that could remove suspended solids during the water treatment of RASs and the equipment for biological filtration (e.g. fluidized sand biofilter (FSB), moving-bed biofilm reactor (MBBR) and rotating biological contactor (RBC)) that could remove ammonia nitrogen, nitrite and other hazardous substances from wastewater, as well as equipment for water disinfection and sterilization, O 2 addition, CO 2 removal and temperature control. Comprehensive analysis and discussion of water treatment efficiency are provided for reference to create efficient high-end recirculation aquaculture models and increase the precision and intelligence degree of recirculating water treatment technologies in the future.

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“…Schneider et al . () found that a protein skimmer used in a flatfish RAS could increase profit through fish performance and improved fish welfare due to better water quality.…”

Section: Physical Filtration Equipments Of Rassmentioning

confidence: 99%

A review on the research status and development trend of equipment in water treatment processes of recirculating aquaculture systems

Xiao

Wei

et al. 2018

Reviews in Aquaculture

149

View full text Add to dashboard Cite

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“…Recirculating aquaculture systems (RAS) are rarely used at present (Bjørndal & Øiestad, 2011). In the case of turbot, the high initial investment and high operational costs of the RAS considerably increase the turbot production cost, affecting the profitability of the cultivation (Schneider et al, 2012). Plants that do not have a hatchery must import the juveniles for fattening.…”

Section: Research Contextmentioning

confidence: 99%

“…Most of the economic studies published on the Spanish turbot sector focus on the relative importance of market factors for turbot, as well as on innovation in cultivation technology or future production trends (Bjørndal & Fernandez‐Polanco, 2013; Bjørndal & Øiestad, 2011; Bjørndal & Palmieri, 2008; Fernández‐González, Pérez‐Pérez, & Garza‐Gil, 2020; Rodríguez‐Rodríguez, Morrison, & Troncoso‐Ojeda, 2017; Schneider et al, 2012). Within these previous works, reference has been made to the decrease in the number of companies or the progressive heterogeneity of the composition of the sector.…”

Section: Introductionmentioning

confidence: 99%

Market concentration in the Spanish turbot aquaculture sector: A regional analysis

Fernández‐González

Pérez‐Pérez

Gil

2021

Papers in Regional Science

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This paper analyses the regional evolution of the market structure in the Spanish turbot industry, which is the leading turbot producer in Europe, using different concentration rates. The analysis is performed considering several factors that have influenced the evolution of the sector, the most important being the application of technology, business strategies and the institutional framework. The results confirm a process of concentration. Starting from an initial phase in which the sector was composed of a considerable number of small companies, this industry has evolved towards a situation in which only two large firms dominate the market.

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“…The physical handling periods associated with these spot checks on welfare are themselves stress events, and any subsequent measurement or observation may be compromised [7]. Another common practice is to utilise easily-measured, environmental parameters such as water temperature and quality (pH, oxygen level, nitrogen, turbidity) as a proxy for animal well-being [8,9]. Recent developments in integrated sensor networks have greatly improved the response time and reliability of environmental sensor technologies.…”

Section: Seeing Through Water: Challenges In Monitoring Aquaculture Smentioning

confidence: 99%

Aquaculture Sentinels: Smart-farming with Biosensor Equipped Stock

SJ¹,

Elliott²

2015

J Aquac Res Development

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Aquaculture is globally the fastest growing primary industry (>6% per annum). Smart-farming, using sentinel animals equipped with miniature biosensors alongside environmental sensors and farm management systems has the potential to revolutionize all sectors of the industry. Real-time animal and environmental monitoring together, will support improved farm management decisions, animal welfare, social awareness and consequently sustainable productivity. Biosensors that monitor the physiology and behavior of sentinel animals provide information on animal well-being and its responses to environmental change and management actions. In turn, this information is extrapolated to help with stock management decisions. This paper introduces the sentinel animal concept to commercial aquaculture with a case study using oysters fitted with biosensors that measure heart rate, and other parameters. We demonstrate how sentinel animals can be effectively integrated alongside environmental sensors into an on-farm sensor network and decision support system.

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Welfare Interventions in Flatfish Recirculation Aquaculture Systems and Their Economical Implications

Cited by 9 publications

References 13 publications

A review on the research status and development trend of equipment in water treatment processes of recirculating aquaculture systems

A review on the research status and development trend of equipment in water treatment processes of recirculating aquaculture systems

Market concentration in the Spanish turbot aquaculture sector: A regional analysis

Aquaculture Sentinels: Smart-farming with Biosensor Equipped Stock

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