Bioremediation of nitrogenous compounds from oilfield wastewater by<i>Ulva lactuca</i>(Chlorophyta)

Shrimp farming has been the fastest‐growing sector in seawater aquaculture and has contributed to improving the farmers income and the utilization efficiency of aquaculture resources in China. The shrimp industry has deployed ever‐improved and innovated methods, from extensive farming to semi‐intensive and intensive farming. Various high‐density intensive culture models, such as high‐land, greenhouse and indoor industrialized culture models, have been used for shrimp pond farming in the coastal area. However, efficiency, environmental and social considerations have led to an increasing adoption of the environmentally‐friendly culture model called integrated multi‐trophic aquaculture (IMTA). This has occurred most rapidly along the northern and central coasts of China. The deployed IMTA culture models reviewed here are shrimp + crab, shrimp + fish, shrimp + sea cucumber, shrimp + jellyfish + clam, shrimp + crab + clam, shrimp + crab + clam + fish and the ridgetail white shrimp polyculture in saline alkaline water, which have been tailored to local conditions and organisms' characteristics. Suitable organism varieties and the maintenance of suitable eco‐friendly water quality have been key to success. The eco‐friendly IMTA culture models described here fully exploit the pond culture resources, to increase production with minimal additional feed and labor inputs, while reducing effluent emissions and treatment cost. The performance of shrimp IMTA models is compared to shrimp monoculture models regarding the economics. An equally important outcome of this publication is making generally accessible the findings from a vast Chinese scientific literature on shrimp culture that has hitherto been unavailable in English.

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“…2014; de Oliveira et al . 2016). In addition, algae are often antagonistic to aquaculture pathogens (Naviner et al .…”

Section: Key Issues In Pond Imta Culturementioning

confidence: 99%

Development and current state of seawater shrimp farming, with an emphasis on integrated multi‐trophic pond aquaculture farms, in China – a review

Chang

Neori

et al. 2020

Reviews in Aquaculture

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“…“physiologically robust” organisms and suitable candidates to be used as a biological filter (macroalgal “nutrient traps”) to mitigate eutrophication [ 15 , 16 ]. Ulva species have already proven their effectiveness for nutrient removal from water, e.g., in finfish and shellfish aquaculture, bio-reactor sludge, or industrial wastewater treatment [ 17 , 18 , 19 , 20 , 21 , 22 ]. However, there are still large knowledge gaps around their efficiency for nutrient removal, especially in “extreme environmental conditions”, such as low salinity, high nutrient loads, and varying temperatures.…”

Section: Introductionmentioning

confidence: 99%

Applications of Ulva Biomass and Strategies to Improve Its Yield and Composition: A Perspective for Ulva Aquaculture

Simón

McHale

Sulpice

2022

Biology

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Sea lettuce (Ulva spp.), with its worldwide distribution and remarkable ability to grow rapidly under various conditions, represents an important natural resource that is still under-exploited. Its biomass can be used for a wide range of applications in the food/feed, pharmaceutical, nutraceutical, biofuel, and bioremediation industries. However, knowledge of the factors affecting Ulva biomass yield and composition is far from complete. Indeed, the respective contributions of the microbiome, natural genetic variation in Ulva species, environmental conditions and importantly, the interactions between these three factors on the Ulva biomass, have been only partially elucidated. Further investigation is important for the implementation of large-scale Ulva aquaculture, which requires stable and controlled biomass composition and yields. In this review, we document Ulva biomass composition, describe the uses of Ulva biomass and we propose different strategies for developing a sustainable and profitable Ulva aquaculture industry.

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“…is probably the most studied genus, due to its cosmopolitan distribution and easy collection (inhabiting the upper mesolittoral) (Joly 1965, Villaça et al 2010. Ulva species have prominent ecological and economic importance such as applications in bioremediation (Neori et al 1991, Vijayaraghavan and Joshi 2014, Oliveira et al 2016), production of noxious blooms (Kong et al 2011, Wang et al 2011, Guidone and Thornber 2013, study of the bacterial-algae interaction (Provasoli and Pinter 1980), as bioindicators of eutrophication conditions (Kozhenkova et al 2006), potential source of biofuels (Li et al 2013), and as a source of food (Mabeau and Fleurence 1993). Ulva species also produce bioactive molecules with biomedical applications on cancer and other therapies (Ryu et al 2013, Wang et al 2013).…”

Section: Ulva Sppmentioning

confidence: 99%

Physiological responses of Ulva fasciata Delile (Ulvales, Chlorophyta): comparison of two populations from thermally distinct sites from Brazilian coast

Martins¹

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Ulvales, Chlorophyta): comparison of two populations from thermally distinct sites from Brazilian coast. Respostas fisiológicas de Ulva fasciata Delile (Ulvales, Chlorophyta): comparação de duas populações de locais termicamente distintos do litoral brasileiro. São Paulo 2016 2 Nuno Tavares Martins Physiological responses of Ulva fasciata Delile (Ulvales, Chlorophyta): comparison of two populations from thermally distinct sites from Brazilian coast. Respostas fisiológicas de Ulva fasciata Delile (Ulvales, Chlorophyta): comparação de duas populações de locais termicamente ABSTRACTIn a global warming scenario, an increase temperature is expected in addition to the occurrence and intensity of extreme climate events. One example of extreme events is the marine heat waves, which are a major threat to marine macroalgae. Ulva fasciata is a cosmopolitan species that occur in the whole Brazilian coast. This study was performed in two regions of Rio de Janeiro State (RJ) coast. Both regions are tropical, however, Arraial do Cabo/RJ is naturally colder than Niterói/RJ due upwelling phenomenon. This study aimed to: (i) confirm that U. fasciata individuals from these two Brazilian coast regions are of the same species; and (ii), physiologically analyze individuals of U. fasciata in the field and under in-laboratory controlled temperature experiment. We hypothesized that U. fasciata populations grown at thermally different locations would present distinct ecophysiological responses. In the field, it was accessed maximum quantum yield (Fv/Fm) and pigment content, and in laboratory, it was also evaluated growth rate. The in-laboratory controlled experiment comprised three phases: (i) a temperature gradient; (ii) a 5-day heat wave (+ 5 °C);and (iii) a 5-day recovery (-5 °C). The molecular data allow us to state that the two populations belong to the same species. No differences of the fluorescence-derived factors were observed between individuals from both populations in the field, suggesting acclimation. However, differences were detected along all three experimental phases. The analysis of pigment content field data evidenced that individuals from the population of Niterói (warmer site) had higher concentrations of chlorophyll a than individuals from Arraial do Cabo (colder site). However, individuals of population from Niterói when cultured at 21 °C showed the lowest values of pigment. The differences observed suggest ecotypes. In conclusion, as the planet becomes warmer and extreme weather events become more frequent, the likelihood that heat wave to occur is higher. Therefore, U. fasciata from Arraial do Cabo showed better physiological responses to the effects of heat wave, what could confer them higher competitiveness ability to overcome thermal stress.

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Bioremediation of nitrogenous compounds from oilfield wastewater byUlva lactuca(Chlorophyta)

Cited by 13 publications

References 37 publications

Development and current state of seawater shrimp farming, with an emphasis on integrated multi‐trophic pond aquaculture farms, in China – a review

Development and current state of seawater shrimp farming, with an emphasis on integrated multi‐trophic pond aquaculture farms, in China – a review

Applications of Ulva Biomass and Strategies to Improve Its Yield and Composition: A Perspective for Ulva Aquaculture

Physiological responses of Ulva fasciata Delile (Ulvales, Chlorophyta): comparison of two populations from thermally distinct sites from Brazilian coast

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