Impacts of Aquaculture on Habitats and Best Management Practices (BMPs)

Ozbay, Gulnihal; Blank, Grant S.; Thunjai, Taworn

doi:10.5772/57471

Cited by 10 publications

(15 citation statements)

References 97 publications

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“…Affect biodiversity increase risk of selection of antibiotic resistant bacteria, can affect food safety (Ferreira et al, 2007;Burridge et al, 2010) Parasiticides Can affect non-target organisms (Tornero and Hanke, 2016) Antifouling products Can affect non-target organisms (Fitridge et al, 2012;Tornero and Hanke, 2016) Disinfectants Can have negative effects on fish health and other marine organisms (difficult to assess) (Buschmann et al, 2006) Anesthetic Few associated negative effects (Burridge et al, 2010) medicines such as antiparasitics and antibiotics to disinfectants (Burridge et al, 2010;Martinez-Porchas and Martinez-Cordova, 2012;Ozbay et al, 2014;Rico et al, 2018). Antifouling chemicals are also being used at aquaculture facilities to avoid the clogging of meshes.…”

Section: Antibioticsmentioning

confidence: 99%

Towards Environmental Sustainability in Marine Finfish Aquaculture

et al. 2021

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Aquaculture is one of the fastest growing food production sectors and has great potential for food security and livelihoods. However, it generates concerning consequences for the environment, including chemical and biological pollution, disease outbreaks, unsustainable feeds and competition for coastal space. Recent investigations are focusing on sustainable techniques (e.g., polyculture, offshore facilities) to improve the relationship between the industry, environment and society. This review provides an overview of the main factors of ecological concern within marine finfish aquaculture, their interactions with the environment, and highlights sustainable alternatives that are currently in use or development. Adequate environmental monitoring and location of farms, the reduction and exploitation of wastes and chemicals being used is crucial to ensure the growth and continuity of aquaculture production.

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Section: Antibioticsmentioning

confidence: 99%

Towards Environmental Sustainability in Marine Finfish Aquaculture

et al. 2021

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“…Aquaculture as any aquaculture production activity, if not well managed, it can cause environmental damage (Gorlach-Lira et al, 2013;FAO, 2014). Nutrients load and suspended solids in aquaculture effluent can cause eutrophication (Cho et al, 1991;Ozbay et al, 2014), oxygen depletion (Wu et al, 1994) and algae blooms problems in the surrounding aquatic environments. Moreover, releasing aquaculture effluent of poor quality may have a significant impact on the aquatic organisms in the receiving water bodies (Piedrahita, 2003;Stephens and Farris, 2004).…”

Section: Introductionmentioning

confidence: 99%

Nitrogen and Phosphorus budget for Nile tilapia hatchery

Moustafa

Ali

Gomha

et al. 2020

Egyptian Journal for Aquaculture

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Tilapia hatcheries if not well managed, it can cause environmental damage. The present study was designed to quantify the impacts generated by Nile tilapia hatcheries, through applying environmental indicators, which is necessary for tilapia hatcheries sustainable development. Three culture trials, each of 15 days, have been carried out to determine environmental indicators: the nitrogen and phosphorus flux and nutrient mass balance based on inputs from feed and losses in fish harvest, nutrients load in the effluent water, and fish bio-solid wastes (sludge). In each, three cement ponds were assigned to determine the nutrients input and loss for 15 days intervals, fry production cycle. The results showed that every 1 Kg feed of 35% protein produce 420 g sludge, of which 262 gm fish excretion. Uneaten feed was found to represent 15.8-20% of the introduced feed and produce 37.6 -43.2 % of sludge. Fish retained at least 25.8 ± 3.91 % and 2.74 ± 0.37 % of the input feed nitrogen and phosphorus, respectively. While the sludge contained 11.3 ± 0.78 % and 32.62 ± 14.46 of the feed nitrogen and phosphorus, respectively. Effluent water contained 43.64 ± 6.45 % and 50.22 ± 16.63 % of feed nitrogen and phosphorus, respectively, distributed in three main fractions: particulate form; dissolved organic and dissolved inorganic forms. The feed nitrogen recovery in the present study was 80. 57%, while the phosphorus recovery reached 85.58% of the feed phosphorus content. Fry production is discussed in response to the feed protein content and feeding rate.

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“…This index, though of great importance, does not unambiguously determine the excretion of waste in fish farms (the amount of pollutants depends on other parameters as well -rearing methods, feeding practices, feed composition and its assimilation rate. That's why setting and following the best management practice in the general aquaculture industry applies to the management of RAS as well (Boyd, 2003;Summerfield, Vinci, 2008;Ozbay et al, 2014). Generally for above mentioned reasons experiments, seeking to examine the assimilation of nutritional matter in feed produced very different results.…”

Section: Waste In Closed Recirculating Systemsmentioning

confidence: 99%

“…This allows organize a simpler and more effective waste purification. Possible RAS wastewater remediation options include treating it outside the growing facilities using conventional wastewater treatment methods (Mirzoyan et al, 2010) even with connecting to centralized wastewater treatment facilities when it is possible (van Gorder, 2001), treatment in wetlands (Michael, 2003;Sindilariu et al, 2009;Ozbay et al, 2014), using it in integrated agriculturalaquacultural systems for vermicomposting, composting, and land application (Adler, 2000;Integrated…, 2003;Lekang, 2008) or in aquaponics systems (Rakocy et al, 2006;Kloas et al, 2015). Another possibility is to incorporate additional technologies in RAS water treatment loop for more efficient removal of nutrients and organic pollution (Barak, van Rijn, 2000, Shnel et al, 2002.…”

Section: Waste In Closed Recirculating Systemsmentioning

confidence: 99%

“…The emitted waste can take soluble form, (ammonia, nitrates, nitrites, phosphorus, and organic matter) and in the form of solid particles (unconsumed feed and excrements, excreted as part of organism vital processes). The majority of dissolved pollutants are nutritional materials that cause eutrophication of water bodies (Ozbay et al, 2014).…”

Section: Waste In Closed Recirculating Systemsmentioning

confidence: 99%

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Waste and Its Characterization in Closed Recirculating Aquaculture Systems – A Review

Mongirdas¹,

Žibienė

Žibas

2017

Journal of Water Security

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Abstract. Just like every economic activity, aquaculture has a particular effect on environment, which manifests itself due to waste through declining quality of subterranean water and eutrophication of surrounding surface water. Less than half of the feed in aquaculture is digested and assimilated, the rest ending up as waste either solid or dissolved and the nutrients phosphorus (P) and nitrogen (N) that are derived from fish excretion, faeces, and uneaten feed. The advantage of recirculating aquaculture systems (RAS) is that their wastewater discharges are 10-100 times lower and pollutant concentration respectively 10-100 times higher and can reach the level of pollution of household waste. This makes the pollution much easier to control. Additionally, striving to ensure and improve the stability and longevity of RAS, additional technological solutions, warranting the reduction of the amount of used water, waste concentration increase and their secondary utilization as bio stock are added. This article presents the research information from the engineering perspective, summarizing RAS design sensitive data concerning aquacultural waste components excreted in RAS.

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Impacts of Aquaculture on Habitats and Best Management Practices (BMPs)

Cited by 10 publications

References 97 publications

Towards Environmental Sustainability in Marine Finfish Aquaculture

Towards Environmental Sustainability in Marine Finfish Aquaculture

Nitrogen and Phosphorus budget for Nile tilapia hatchery

Waste and Its Characterization in Closed Recirculating Aquaculture Systems – A Review

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