Proximate and fatty acid composition of the gonads of wild versus hatchery-conditioned Pinctada margaritifera broodstock

Ehteshami, Fariborz; Christianus, Annie; Rameshi, Hossein; Harmin, Sharr Azni; Saad, Che Roos

doi:10.1111/j.1365-2095.2010.00821.x

Cited by 11 publications

(10 citation statements)

References 40 publications

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“…The observed positive correlation between PUFAs content and the quantity of ingested planktons in this study further suggested that a variation in fatty acids contents during different gonad development stages was closely related to the fatty acid contents of planktons [27]. The high content of the gonadal PUFAs during the advanced gametogenesis stages of P. viridis was due to the increased ingestion of plankton, particularly Bacillariophyceae and dinoflagellates, which contain higher amounts of n-3 fatty acids [76,77]. More precisely, it was reported that Bacillariophyceae are rich in eicosapentanoic acid (EPA), while dinoflagellates (Pyrrophyceae) are enriched with docosahexaenoic acid (DHA) [76,77].…”

Section: Discussionsupporting

confidence: 69%

“…The high content of the gonadal PUFAs during the advanced gametogenesis stages of P. viridis was due to the increased ingestion of plankton, particularly Bacillariophyceae and dinoflagellates, which contain higher amounts of n-3 fatty acids [76,77]. More precisely, it was reported that Bacillariophyceae are rich in eicosapentanoic acid (EPA), while dinoflagellates (Pyrrophyceae) are enriched with docosahexaenoic acid (DHA) [76,77]. In our study, it was revealed that during the gonadal mature stages, P. viridis consumed more than two times the amount of Bacillariophyce and Pyrrophyceae compared to that during the spent and resting stages (see Table S3).…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Reproductive Biology and Ecology of the Green Mussel Perna viridis: A Multidisciplinary Approach

Asaduzzaman

Noor

Rahman

et al. 2019

Biology

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A multidisciplinary approach was applied to explore deeper knowledge about the reproductive biology and ecology of the green mussel (Perna viridis) by interlinking among ecological factors, ingested gut plankton, gonad fatty acid profile, and reproductive traits. Mussels were collected throughout the year from the coastal region of the Bay of Bengal of Bangladesh, and the histological analysis of 242 mussels revealed five stages of gametogenesis with an annual spawning season from January to April. The gonadosomatic index showed a strong correlation with the water quality parameters, ingested gut plankton groups, and gonadal fatty acids, and also displayed prominent effects of seasonality. In all datasets, we performed principal component analysis in which the first two principal components showed that seasonality explained >65% of the variability, and the multivariate spaces of seasonality corresponded to the gonad development. High salinity, nutrients, chlorophyll a, and plankton abundance in the water column were positively correlated with gonad development and the spawning of mussels. During the development stage, mussel ingested more plankton, particularly Bacillariophyceae and Pyrrophyceae, which were an important source of increased n-3 polyunsaturated fatty acids content in gonads. Furthermore, gonads accumulated more lipids and saturated fatty acids during the mature and spawning stages, which were probably utilized during embryogenesis and early larval development as energy sources and constituents of the cell membrane. This research provides a model toward a better understanding of reproductive biological traits and how these traits are interrelated with the surrounding environmental variables of the green mussel, which would be helpful in marine aquaculture and the sustainable exploitation of the fishery resources.

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Section: Discussionsupporting

confidence: 69%

Section: Discussionmentioning

confidence: 99%

Reproductive Biology and Ecology of the Green Mussel Perna viridis: A Multidisciplinary Approach

Asaduzzaman

Noor

Rahman

et al. 2019

Biology

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“…The composition of the major fatty acids from these microalgae species has already been published elsewhere (Ehteshami et al . ), and therefore, only the major fatty acids and groups of each tested microalgae species will be briefly mentioned and presented. T. Iso had the highest levels of 18:2n‐6, 18:3n‐3 and 22:6n‐3 as well as significantly higher ( P < 0.05) total saturated (SFA), monounsaturated (MUFA) and polyunsaturated fatty acids (PUFA) than the diatom species (Table ).…”

Section: Resultsmentioning

confidence: 99%

Effect of different dietary microalgae combinations on growth and survival of black-lip pearl oyster (Pinctada margaritifera) larvae and the feasibility of replacing microalgae with a dietary lipid emulsion

et al. 2016

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A 10-day experiment was performed to examine different mono, binary and ternary dietary combinations on survival and growth of D-shaped and umbone black-lip pearl oyster, Pinctada margaritifera, larvae. The three tropical microalgae species were the flagellate Isochrysis galbana clone T. Iso (CS-177) and diatoms Chaetoceros calcitrans (CS-178) and Chaetoceros muelleri (CS-176) which were fed to D-shaped and umbone larvae at a density of 7000 and 14 000 cells mL À1 , respectively. A second experiment was performed to investigate the feasibility of replacing T. Iso with a lipid emulsion for both D-shaped and umbone larvae for 10 and 12 days, respectively. The treatments included only T. Iso, unfed and lipid emulsion to substitute T. Iso at levels of 10% (LIP10), 30% (LIP30) and 100% (LIP100). In the first experiment, results showed that a monospecific diet of T. Iso led to significantly higher (P < 0.05) survival and growth of D-shaped larvae than all the other treatments. Meanwhile, D-shaped larval survival was significantly lower when only fed C. calcitrans as well as growth for those fed C. calcitrans or in combination with C. muelleri. However, for umbone larvae, survival and growth were significantly higher when fed a binary combination of T. Iso and C. muelleri or the ternary combination of T. Iso, C. muelleri and C. calcitrans compared with all other treatments. For the second experiment, results showed that with increasing lipid emulsion replacement, survival of both D-shaped and umbone larvae significantly decreased (P < 0.05); however, the LIP100 treatment was not significantly different (P > 0.05) from the unfed treatment. For D-shaped larvae, no significant growth difference was detected (P > 0.05) between the T. Iso and LIP10 fed treatments while for umbone larvae, the T. Iso, LIP10 and LIP30 were not significantly different (P > 005). These results indicate that microalgae combinations appear more necessary for later staged P. margaritifera larvae. In addition, the use of a lipid emulsion appeared to provide some nutrition to the larvae, although more research should be conducted to improve the use of such replacements.

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“…Fatty acids, including PUFA, are provided by microalgae, the primary food source to bivalves, and the amount of these compounds may vary with microalgae species (Rivero-Rodríguez et al, 2007). It is widely accepted that PUFA derive mainly from microalgae diet (Langdon and Waldock, 1981) because bivalves have a limited capacity to synthesize them (Ehteshami et al, 2011;Fernández-Reiriz et al, 2017). Thus, the nutritional value of the diet is often determined by the amount of PUFA, such as EPA and DHA.…”

Section: Discussionmentioning

confidence: 99%

Fatty Acid Profile of Pacific Oyster, Crassostrea gigas, Fed Different Ratios of Dietary Seaweed and Microalgae during Broodstock Conditioning

Rato

Pereira

Joaquim

et al. 2019

Lipids

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The fatty acid (FA) profile of oysters generally reflects the dietary FA composition. Moreover, incorporation of FA into tissues is modulated by various metabolic factors, and final composition will depend upon the dietary sources, cumulative intake, and oysters' development stage. Thus, the aim of this study was to assess the impact of dietary incorporation of seaweed (SW) Ulva rigida, in replacement of traditional microalgae diet, on the FA composition of Pacific oysters Crassostrea gigas, during broodstock conditioning. The dietary conditioning consisted of direct replacement of microalgae (33% Tisochrysis lutea, 50.25% Skeletonema costatum, and 16.75% Chaetoceros calcitrans) by SW at four different substitution levels (0%, 25%, 50%, and 100% diet). The dietary docosahexaenoic acid (DHA) (22:6n‐3) and eicosapentaenoic acid (EPA) (20:5n‐3) contents showed a positive correlation with the dietary microalgae level. During the trial, oysters fed with higher percentages of microalgae revealed a depletion of DHA and accumulation of EPA. The 100% SW caused a significant reduction in oxygen consumption and, consequently, in the standard metabolic rate. Based on these results, a partial substitution of up to 25% of dietary microalgae seems to be a suitable alternative, because it elicited similar results to the commercial 100% microalgae diet.

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Proximate and fatty acid composition of the gonads of wild versus hatchery-conditioned Pinctada margaritifera broodstock

Cited by 11 publications

References 40 publications

Reproductive Biology and Ecology of the Green Mussel Perna viridis: A Multidisciplinary Approach

Reproductive Biology and Ecology of the Green Mussel Perna viridis: A Multidisciplinary Approach

Effect of different dietary microalgae combinations on growth and survival of black-lip pearl oyster (Pinctada margaritifera) larvae and the feasibility of replacing microalgae with a dietary lipid emulsion

Fatty Acid Profile of Pacific Oyster, Crassostrea gigas, Fed Different Ratios of Dietary Seaweed and Microalgae during Broodstock Conditioning

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