Nitrogen budget and effluent nitrogen components at an intensive shrimp farm

Jackson, Christopher J.; Preston, Nigel P.; Thompson, Peter J.; Burford, Michele A.

doi:10.1016/s0044-8486(03)00014-0

Cited by 222 publications

(178 citation statements)

References 22 publications

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“…No ecological characteristics could be related to water purification, as the role of mangroves is negligible in most aquaculture management regimes or not yet explored in eco-certified aquaculture. Furthermore, see Jackson et al (2003) for a discussion and overview of N-emission and budgets of shrimp aquaculture, and alternative ways of measuring / recalculating them.…”

Section: E) Water Purificationmentioning

confidence: 99%

“…Furthermore, N and P removal from water only constitutes a small part of the nutrient cycle within mangrove ecosystems and aquaculture systems. We refer to Jackson et al (2003) for a discussion and overview of N-emission and budgets of shrimp aquaculture, and Twilley and Day (1999) for an overview of mangrove ecosystems' nutrient cycle. Furthermore, most sources on N removal did not take into account nutrient loss through denitrification.…”

Section: E) Water Purificationmentioning

confidence: 99%

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Effects of different management regimes on mangrove ecosystem services in Java, Indonesia

Oudenhoven

Siahainenia

Sualia³

et al. 2015

Ocean & Coastal Management

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Section: E) Water Purificationmentioning

confidence: 99%

Section: E) Water Purificationmentioning

confidence: 99%

Effects of different management regimes on mangrove ecosystem services in Java, Indonesia

Oudenhoven

Siahainenia

Sualia³

et al. 2015

Ocean & Coastal Management

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“…Aquaculture effluent is more complex, with different ratios of organic and organic nutrients (e.g. see Jackson et al, 2003;Webb et al, 2012) and Webb et al (2012) found that halophyte wetlands had different removal efficiencies for dissolved inorganic nitrogen and dissolved organic nitrogen. In addition, nutrient removal efficiencies in constructed wetlands are principally influenced by nutrient inflow concentration, hydraulic load (which is inversely related to hydraulic residence time) and the accumulation of solids, which lead to wetland clogging (Rousseau et al, 2008;Zachritz et al, 2008;Sindilariu et al, 2009).…”

Section: The Role Of Constructed Wetlands In Treatment Of Effluent Frmentioning

confidence: 99%

The potential of a salt-tolerant plant (Distichlis spicata cv. NyPa Forage) to treat effluent from inland saline aquaculture and provide livestock feed on salt-affected farmland

Lymbery

Kay

Doupé

et al. 2013

Science of The Total Environment

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Dryland salinity is a major problem affecting food production from agricultural land in Australia and throughout the world. Although there is much interest in using saline groundwater to grow marine fish on salt-affected farmland, the disposal of nutrient enriched, saline aquaculture effluent is a major environmental problem. We investigated the potential of the salt-tolerant NyPa Forage plant (Distichlis spicata L. Greene var. yensen-4a) to trap nutrients from saline aquaculture effluent and subsequently to provide a fodder crop for livestock. Sub-surface flow wetlands containing NyPa Forage were constructed and their efficacy in removing total nitrogen, ammonia, nitrite/nitrate, total phosphorus and orthophosphate was monitored under different levels of nutrients and salinity. The wetlands removed 60 -90% of total nitrogen loads and at least 85% of ammonia, nitrite/nitrate, total phosphorus and orthophosphate loads, with greater efficiency at high nutrient and low salinity levels. The above-ground yield, sodium, crude protein (CP) and in vitro dry matter digestibility (DMD) of NyPa Forage plants were measured after fertilisation with different nutrient levels and cropping at different frequencies. Yield of plants increased with increased nutrient, while nutritive value was greater when nutrients were applied but did not differ among nutrient levels. Yield was not affected by cropping frequency, but nutritive value was greatest when plants were cropped at intervals of 21 or 42 days. At optimum nutrient addition and cropping levels, the plants had a mean CP content of 16.7 % and an in vitro DMD of 67.6 %, equivalent to an energy value of 9.5 MJ kg -1 . Assuming an equivalent fibre content and voluntary food intake as grass hay, and no accumulation of other toxic minerals, these nutritive values would be sufficient for maintenance or moderate liveweight gains in dry adult sheep or cattle. Keywords:salinity; inland saline aquaculture; effluent; constructed wetlands; saltland pasture; agri-aquaculture 3 IntroductionSecondary salinisation, in which human activities lead to high concentrations of ions (principally sodium and chloride) in the landscape, is a major environmental problem affecting freshwater and soil in many arid and semi-arid areas of the world (Ghassemi et al., 1995;Rozema and Flowers, 2008). Secondary salinisation occurs because of rising water tables, as a result of irrigation (irrigation salinity) or land clearing (dryland salinity). It is a particular problem in economically less-developed countries (e.g. India, Tunisia, Morocco, Peru and Bolivia) although more-developed regions, such as Australia, may also be badly affected (Rozema and Flowers, 2008). In Australia, the widespread clearing of native vegetation has resulted in approximately 5.7 M ha of agricultural land being adversely affected by dryland salinity, and this figure may grow to 17 M ha by 2050 (National Land and Water Resources Audit, 2001).The salinisation of agricultural land in arid regions is largely irreversible because ...

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“…Among anthropogenic sources, intensive shrimp aquaculture accounted for environmental impacts associated with the emission of large amounts of P directly to estuarine waters Jackson et al, 2003). For example, in northeast Brazil emission scenarios for 25 estuaries showed that shrimp farming P contribution varied from <1 to 13% of the total anthropogenic P emission and in many areas compares with emissions from waste waters and agriculture (Figueiredo et al, 2005;Lacerda et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Anthropogenic sources and distribution of phosphorus in sediments from the Jaguaribe River estuary, NE, Brazil

Marins¹,

Filho²,

Eschrique³

et al. 2011

Braz. J. Biol.

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This paper estimates annual P emission to the Jaguaribe River estuary, NE Brazil, responsible for approximately 30% of the country's farmed shrimp production. Emissions increased three times between 2001 and 2006 and reached 43.9 t.year -1. These emissions make aquaculture the third main source of P for this estuary and are much smaller than emissions from agricultural sources and slightly lower than emissions from wastewater. Their relative contribution also increased from 10.5% to 20.5%. Temporal variability of P concentrations in estuarine bottom sediments also suggest an increase, but not as evident as the emissions. The spatial distribution and speciation of P (total P and inorganic P) in sampling stations located upstream and downstream from the main aquaculture area confirmed the importance of this source. Inorganic P was the dominant form present in sediments downstream and showed an increase from 67% to 75% of the total P present in the sediment.Keywords: nutrients, emission, estuary, shrimp culture, wastewaters. Emissão e distribuição de fósforo de fontes antrópicas no estuário do rio Jaguaribe, Nordeste do BrasilResumo É apresentada uma estimativa da emissão anual de P para o estuário do rio Jaguaribe, Ceará, Nordeste do Brasil, área responsável por cerca de 30% da produção total de camarão cultivado no país. As emissões aumentaram por um fator de três entre 2001 e 2006, atingindo 43,9 t.year -1 . Essa emissão coloca a aquacultura como a terceira fonte principal de P para esse estuário, sendo bem menor que a emissão de fontes agrícolas e um pouco menor que as emissões por águas servidas. A contribuição relativa da aquacultura também aumentou de 10,5% a 20,5%, no mesmo período. A variação temporal das concentrações de P em sedimentos estuarinos sugere um aumento no período, porém não tão evidente quanto das emissões. A distribuição espacial e a especiação do P (P total e P inorgânico) em estações de coleta localizadas à montante e à jusante da principal área de aquacultura confirmaram a importância desta fonte. O P inorgânico foi a forma dominante presente em sedimentos à jusante e mostrou um aumento de 67% a 75% do total de P presente no sedimento.Palavras-chave: nutrientes, emissão, estuário, carcinicultura, águas servidas.

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Nitrogen budget and effluent nitrogen components at an intensive shrimp farm

Cited by 222 publications

References 22 publications

Effects of different management regimes on mangrove ecosystem services in Java, Indonesia

Effects of different management regimes on mangrove ecosystem services in Java, Indonesia

The potential of a salt-tolerant plant (Distichlis spicata cv. NyPa Forage) to treat effluent from inland saline aquaculture and provide livestock feed on salt-affected farmland

Anthropogenic sources and distribution of phosphorus in sediments from the Jaguaribe River estuary, NE, Brazil

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