Quality of Six Indian Populations of<i>Artemia franciscana</i>for Larval Finfish Culture

Vikas, P A; Chakraborty, Kajal; Sajeshkumar, N. K.; Thomas, P C; Sanil, N K; Vijayan, Koyadan Kizhakedath

doi:10.1080/10454438.2014.942124

Cited by 6 publications

(3 citation statements)

References 35 publications

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“…Recent research reported that A. franciscana colonized in many salterns in India and it occupied all the salterns of South India [18]. Later, it was proven by molecular markers and it showed that all belong to the same species A. franciscana [19,20,28,29]. These invader populations also showed many phenotypes within a population [20].…”

Section: Discussionmentioning

confidence: 99%

Do environmental factors influence the morphotypes in Artemia franciscana Kellogg, 1906 (Crustacea: Anostraca)?

Thirunavukkarasu

Munuswamy

2019

SN Appl. Sci.

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The present study investigates the impact of environmental factors on the occurrence of morphotypes in Artemia franciscana (Article 4; ICZN, 2000) encountered from different salterns of Tamilnadu, southeast coast India. Samplings of brine shrimp were done at four different sites (Kelambakkam, Vedaranyam, Tuticorin and Nagarcoil) on a seasonal basis from December, 2014 to August, 2016. Variations of physicochemical factors (temperature, pH, salinity, DO, nitrate, nitrite, ammonia, phosphate and silicate) were recorded in water samples at all the sampling sites. Intensive survey indicated the occurrence of morphotypes M1, M3, M4 in males and F1, F2, F3 in females from all sampling sites. Principal component analysis, Pearson's correlation and regression analysis indicated that all physicochemical factors are not significantly correlated with the occurrence of morphotypes. From these studies, it is evident that morphotypes are not seemed to be influenced by physicochemical factors prevailing at the salterns. However, the variation in water temperature seems to influence the abundance of morphotypes M1 and M4 in males and F1 and F2 in females from all the sampling sites, which was further confirmed by cluster analysis.

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Section: Discussionmentioning

confidence: 99%

Do environmental factors influence the morphotypes in Artemia franciscana Kellogg, 1906 (Crustacea: Anostraca)?

Thirunavukkarasu

Munuswamy

2019

SN Appl. Sci.

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“…This is partly due to high resistance of commercial feed to physical breakdown and ineffectiveness of mechanical digestion processes in larval fish [7, 8]. Commercial feed also contains lower percentage of soluble proteins when compared to commonly used live foods, which further aggravates nutrient assimilation, given the low digestive protease activity in larval gut [9, 10, 11, 12]. Additionally, because of specific processes applied during feed manufacturing, like heating and fat coating, commercial feed is usually presented with low phospholipid and excess neutral lipid amount on its surface [13, 14, 15].…”

Section: Introductionmentioning

confidence: 99%

Solid state treatment with Lactobacillus paracasei subsp. paracasei BGHN14 and Lactobacillus rhamnosus BGT10 improves nutrient bioavailability in granular fish feed

et al. 2019

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The aim of this research was to improve nutritive value of fishmeal-based feed by lactobacilli in order to achieve satisfactory nutrient availability needed to support fish development. Feed was solid-state treated at a laboratory scale with the combination of Lactobacillus paracasei subsp. paracasei BGHN14 and Lactobacillus rhamnosus BGT10 in different experimental settings, which included the variation of strain ratio, total lactobacilli concentration, percentage of moisture and duration of incubation. Short peptides, soluble proteins, phospho-, neutral and unsaturated lipids were quantified. Differences among treated and control feeds were evaluated by Student t-test, while Gaussian process regression (GPR) modeling was employed to simulate the incubation process and define the optimal treatment combination in the context of overall feed nutritional profile. Treatment duration was shown to be the critical determinant of final outcome, either as single factor or via interaction with strain ratio. Optimal nutrient balance was achieved with 12 h incubation period, 260% moisture, 75:25 and 50:50 BGHN14:BGT10 ratios and 200 mg of lactobacilli per g of dry feed. This study should serve as the basis for large-scale tests which would simulate on-farm production of both fishmeal-based and unconventional, lower cost aquafeed with added value.

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“…Both, marine and freshwater organisms possess different mechanisms to cope up with the varying environmental conditions. The brine shrimp, Artemia are distributed along the hypersaline, inland salt lakes and salt pans around the globe (Vikas et al, 2012;2014) They are rarely found in waters with salinity lower than 45 ppt, although physiologically they thrive in seawater and even in brackishwater. Salinity is without any doubt the predominant abiotic factor determining the presence of Artemia and the natural defense mechanism against predators, consequently limiting its geographical distribution.…”

mentioning

confidence: 99%

Effect of salinity stress on biochemical constituents and ArHsp22 gene expression in Artemia franciscana

Vikas

Thomas²,

Kumar³

et al. 2016

Indian J. Fish.

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The present study analysed the effect of salinity stress on survival, biochemical constituents such as soluble protein, amino acid, trehalose and fatty acid, as well as real time expression of the Artemia heat-shock protein 22 (ArHsp 22) gene in Artemia franciscana. Results of the study revealed that Artemia can withstand sudden salinity increase up to 200 ppt without any mortality up to 6 h. Significantly higher mortality percentage was recorded at 24 h of incubation at 200 ppt. Short-term exposure to hypersaline conditions significantly reduced the protein content in Artemia while the protein biosynthesis enhanced after 24 h of incubation at 150 ppt salinity. Long term exposure to 200 ppt salinity did not show any further increase in amino acid content as observed at 100 and 150 ppt conditions, indicating reduced rate of amino acid metabolism and stress. Salt stress induced the synthesis of total polyunsaturated fatty acids (PUFA) in Artemia especially the 22:6n-3 and 20:5n-3 after 24 h of incubation at 150 ppt . Exposure to higher salinity induced trehalose production which indicated its vital role in combating salt stress in Artemia. The present study also indicated that short-term salt stress can significantly enhance the ArHsp22 gene expression in Artemia adults.

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Quality of Six Indian Populations ofArtemia franciscanafor Larval Finfish Culture

Cited by 6 publications

References 35 publications

Do environmental factors influence the morphotypes in Artemia franciscana Kellogg, 1906 (Crustacea: Anostraca)?

Do environmental factors influence the morphotypes in Artemia franciscana Kellogg, 1906 (Crustacea: Anostraca)?

Solid state treatment with Lactobacillus paracasei subsp. paracasei BGHN14 and Lactobacillus rhamnosus BGT10 improves nutrient bioavailability in granular fish feed

Effect of salinity stress on biochemical constituents and ArHsp22 gene expression in Artemia franciscana

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