Experimental Evaluation of the Halophyte, <scp><i>Salicornia virginica</i>,</scp> for Biomitigation of Dissolved Nutrients in Effluent from a Recirculating Aquaculture System for Marine Finfish

Watanabe, Wade O.; Farnell, Robert D.

doi:10.1111/jwas.12490

Cited by 5 publications

(5 citation statements)

References 32 publications

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“…The reason for the different thresholds between Sai Kachout et al [45] and the present study may be the media in which the tests were conducted. Salinity in irrigation water can lead to the accumulation of salt in the soil [37,59]. On the other hand, red orache in the present study was grown in hydroponics and the salinity level in the water changed little.…”

Section: Plantsmentioning

confidence: 60%

Evaluation of Pacific Whiteleg Shrimp and Three Halophytic Plants in Marine Aquaponic Systems under Three Salinities

Chu

Brown

2020

Sustainability

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The effect of salinity on the growth performance of whiteleg shrimp (Litopenaeus vannamei) and three halophyte plants, red orache (Atriplex hortensis), okahijiki (Salsola komarovii), and minutina (Plantago coronopus), in a marine aquaponic system with biofloc was evaluated in this study. The experiment was conducted for 4 weeks, and the three treatments were 10, 15, or 20 ppt (parts per thousand). The growth performance of the shrimp and the three halophytes were affected by the salinity. Compared to the shrimp reared in 10 ppt, those reared in 15 and 20 ppt had higher final weight, weight gain rate (WGR), and specific growth rate (SGR), and lower feed conversion ratio (FCR). The results from shrimp raised in 15 ppt were 2.0 ± 0.1 g, 89.9 ± 2.2%, 2.3 ± 0.0%, and 1.5 ± 0.0, respectively, and those in 20 ppt were 2.0 ± 0.1 g, 93.9 ± 5.4%, 2.4 ± 0.1%, and 1.4 ± 0.1, respectively. On the other hand, the growth performance and nutrient content in halophyte plants decreased with the increasing salinity. In general, the three halophyte plants had better results in the 10 and 15 ppt treatments than those in 20 ppt. Therefore, the salinity of 15 ppt was suggested as the optimal condition for the integrated cultivation of whiteleg shrimp and the three halophytes in marine aquaponics. Additionally, they are compatible species for the development of marine aquaponics.

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Section: Plantsmentioning

confidence: 60%

Evaluation of Pacific Whiteleg Shrimp and Three Halophytic Plants in Marine Aquaponic Systems under Three Salinities

Chu

Brown

2020

Sustainability

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“…On the other hand, targeting Salicornia towards agri-aquaculture integrated farms, the use of water in aquaculture activities near coastal lines can reach sustainability by using this halophyte as a biofilter barrier, when irrigated with discharged effluents. In southern Israel, Salicornia persica was used as a biofilter for seawater-culture effluents, effectively removing N, P, and suspended solids from this activity with proven emissions [35,36].…”

Section: Irrigation Requirementsmentioning

confidence: 99%

Environmental and Management Considerations for Adopting the Halophyte Salicornia bigelovii Torr. as a Sustainable Seawater-Irrigated Crop.

Garza‐Torres

Troyo-Diéguez²,

Nieto‐Garibay³

et al. 2020

Sustainability

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Salicornia bigelovii Torr. is a potential new crop for coastal and saline lands, because of the oil content of its seeds, its properties as fresh vegetable, forage, and other uses. As a true halophyte, it can grow with seawater irrigation. The aim of this study was to determine the phenology and water requirements of Salicornia as a new plant resource in growing areas for salt-tolerant crops in coastal and saline lands, and elucidate scenarios of sustainability about these issues. Water requirements were estimated in experimental plots on the coastal line and fulfilled with drip irrigation connected to seawater aquaculture discharge ponds, 30 m from the sea. The recorded phenological events were germination, flowering, fructification, maturation, and physiological death. Results reflect the difficulty to adopt it as a new crop because of its long-life cycle, around nine months, contrasting with the life cycle of common crops, from three to four months. Irrigation needs reached a depth of 240 cm, significantly exceeding those of conventional crops. Such limitations are highlighted, but also its potential use as a biofilter of coastal aquaculture effluents, being a productive target-biomass, feasible to be used as a dual-purpose use of water and energy required in aquaculture farms.

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“…258 Salicornia is perhaps one of the most attractive halophyte plants for marine finfish RASs. 299 Salicornia bigelovii includes 35% protein and 30% unsaturated fatty acids (mainly linoleic acid) and thus is considered a valuable food ingredient for fish and shellfish. 300 Thus, incorporating seaweed would allow fish to be cultured in favourable water conditions and provide increased benefits based on the resource utilization of seaweed.…”

Section: Seaweedmentioning

confidence: 99%

“…Seaweed harvested from aquaculture systems is currently receiving attention as a potential source of nutrients 258 . Salicornia is perhaps one of the most attractive halophyte plants for marine finfish RASs 299 . Salicornia bigelovii includes 35% protein and 30% unsaturated fatty acids (mainly linoleic acid) and thus is considered a valuable food ingredient for fish and shellfish 300 .…”

Section: Removal and Recovery Of Dissolved Phosphorusmentioning

confidence: 99%

Review of waste phosphorus from aquaculture: Source, removal and recovery

Luo

2022

Reviews in Aquaculture

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The contribution of phosphorus to water body eutrophication is a global environmental problem, and rapid increases in aquaculture are considered a significant source of phosphorus discharged into the environment. The current review focuses on the source of aquaculture waste phosphorus and measures to decrease phosphorus release into the environment. Because diets are a significant source of phosphorus in fed aquaculture systems, improving the utilization efficiency of dietary phosphorus can reduce the amount of waste phosphorus at the source. A wide range of removal and recovery technologies has been identified, including adsorption, crystallization, enhanced biological phosphorus removal (EBPR), denitrifying phosphorus removal, heterotrophic nitrification aerobic denitrification (HAND) and photosynthetic organism removal. Recovery technologies were also reviewed, particularly sludge phosphorus from recirculating aquaculture systems. A new method using bacteria to immobilize waste nitrogen and phosphorus into bioflocs has been proposed as a better solution. However, most of these technologies have only been implemented at the lab scale to pilot scale. Further studies are necessary to determine the working conditions and removal capacities of related technologies on a commercial scale.Moreover, phosphorus removal methods must be selected based on a consideration of recyclability.

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Experimental Evaluation of the Halophyte, Salicornia virginica, for Biomitigation of Dissolved Nutrients in Effluent from a Recirculating Aquaculture System for Marine Finfish

Cited by 5 publications

References 32 publications

Evaluation of Pacific Whiteleg Shrimp and Three Halophytic Plants in Marine Aquaponic Systems under Three Salinities

Evaluation of Pacific Whiteleg Shrimp and Three Halophytic Plants in Marine Aquaponic Systems under Three Salinities

Environmental and Management Considerations for Adopting the Halophyte Salicornia bigelovii Torr. as a Sustainable Seawater-Irrigated Crop.

Review of waste phosphorus from aquaculture: Source, removal and recovery

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