Depletion of nutrient reserves during embryogenesis in the scallop Patinopecten yessoensis (Jay)

Whyte, J. N. C.; Bourne, N.; Ginther, Norma G.

doi:10.1016/0022-0981(91)90117-f

Cited by 49 publications

(25 citation statements)

References 31 publications

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“…Similar results were reported in P. margaritifera (Acosta-Salmon 2004;Vahirua-Lechat et al 2008) and P. maximus (Soudant, Marty et al 1996). DHA plays an essential role at the structural and functional levels of cellular membranes involved in oogenesis and embryogenesis (Uki, Kemayama & Watanabe 1985;Whyte et al 1991;Soudant, Marty et al 1996;Soudant,Van Ryckeghem, Marty, Moal, Samain & Sorgeloos 1999). The greater egg number, size and better hatching rate produced by broodstock fed with supplementary food may be associated with higher contents of DHA.…”

Section: Discussionsupporting

confidence: 70%

“…Results of this study con¢rm the theory that there is a positive relationship between broodstock diet, lipid content and egg size. The importance of endogenous reserves laid down in the eggs for providing energy during embryogenesis and growth before larvae are able to feed on exogenous sources has been quoted (Gallager & Mann 1986;Whyte, Bourne & Ginther 1991;Labarta, Ferna Ł ndezreiriz & Pe¤ rez-Camacho 1999). However, Cannuel and Beninge (2005) found that there is no relationship between conditioning treatment and oocyte quality predictor or subsequent validator.…”

Section: Discussionmentioning

confidence: 99%

“…However, it appears that microalgae, especially Isochrysis, had enough DHA; therefore, no signi¢cant di¡erence between T2 and T3 was observed. DHA plays an essential role at the structural and functional levels of cellular membranes involved in oogenesis and embryogenesis (Uki, Kemayama & Watanabe 1985;Whyte et al 1991;Soudant, Marty et al 1996;Soudant,Van Ryckeghem, Marty, Moal, Samain & Sorgeloos 1999). Comparatively DHA/EPA ratios in neutral and polar lipids show that DHA was incorporated selectively in the polar lipids of gonads.…”

Section: Discussionmentioning

confidence: 99%

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The effects of dietary supplements of polyunsaturated fatty acid on pearl oyster, Pinctada margaritifera L., gonad composition and reproductive output

Ehteshami

Christianus

Rameshi

et al. 2010

Aquaculture Research

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Black-lip pearl oyster, Pinctada margaritifera broodstock was collected from the wild. Egg production, hatching rate and larval development were compared between oysters induced to spawn within 2 days after collection in the wild (T1), oysters fed a pure microalgae diet during 24 days before spawning (T2) and oysters fed the same microalgal diet in which 10% of the algae were replaced with 2 mm polyunsaturated fatty acid (PUFA)-rich microspheres (T3). Administration of lipid microspheres resulted in larger sized eggs, a higher percentage of D-larvae and larger sized 48-h-old larvae (Po0.05). The total and neutral lipid contents of the gonad increased after oysters were fed with microalgae only or with supplementary diet. The major neutral and polar fractions of saturated fatty acid (SFA) were 16C and 18C fatty acids, and not in£uenced by the diet (P40.05). The gonads of oysters fed supplementary PUFA contained more docosahexaenoic acid (DHA) and less monounsaturated fatty acids. Higher level of DHA in gonads of T3 was associated with oogenesis and embryogenesis success. The n-3/n-6 ratio in the neutral lipid fraction provides a good indication of the spawning condition and predicting egg size and hatching rate.

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Section: Discussionsupporting

confidence: 70%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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The effects of dietary supplements of polyunsaturated fatty acid on pearl oyster, Pinctada margaritifera L., gonad composition and reproductive output

Ehteshami

Christianus

Rameshi

et al. 2010

Aquaculture Research

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“…For example, Tapes semidecussata (= Venerupisphilippinarum , Reeve 1864) and Mercenaria mercenaria , Linnaeus 1758, needed 22:6ω3 (DHA) while Crassostrea sp., Sacco 1897, showed a fundamental need for 20:5ω3 (EPA) [95,98]. EPA has also been reported to decrease during embryonic and larval development in many bivalve species [4,26,95,99-101]. Finally, we observed a linear decrease (from approximately 5.0% to 3.0% in May, July, and September) of the MUFA 18:1ω7 which suggested a nutritive role, contrary to the observation of its linear increase during embryonic development of the pectinid Crassadoma gigantea by Whyte et al [4], which suggested an essential structural role for this FA.…”

Section: Discussionmentioning

confidence: 99%

Seasonal Variations in Maternal Provisioning of Crepidula fornicata (Gastropoda): Fatty Acid Composition of Females, Embryos and Larvae

et al. 2013

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Recruitment success of marine invertebrate populations not only depends on the number of recruits but also on their quality which affects their survival. In species characterized by a mixed development (encapsulated embryonic development and release of planktotrophic larvae), the offspring quality depends on both maternal provisioning and larval feeding. Here, we investigated potential changes of maternal provisioning over the whole reproductive period in a gastropod with a mixed development: Crepidula fornicata . In its introduction area, C . fornicata reproduces from February to October, which implies that both adults and larvae are exposed to different food availabilities. Maternal provisioning was assessed by measuring the fatty acid (FA) composition of females, encapsulated embryos and larvae, in February, May, July and September 2009. FA are essential resources for the development of embryos and larvae, and are key biomarkers of offspring quality. Our results showed differences in FA composition between muscles, visceral masses, and encapsulated embryos. In particular, FA composition of embryos was similar to that of the visceral mass. Seasonal variations in FA composition were observed: in the middle of the reproductive season (May and July), female tissues and embryos showed a higher proportion of polyunsaturated fatty acids and especially ω3, as compared to the beginning and end of the reproductive season (February and September). This showed that through maternal provisioning the quality of C . fornicata offspring was higher in the middle of the reproductive season. Whether this would result in an increase of recruitment success and juvenile performance would require further investigations.

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“…Some fatty acids that have a double bond in (n-3) and (n-6) are considered essential for marine invertebrates because they are not biosynthesised by these invertebrates (Holland 1978). The decrease of 22:2 and 22:6 (n-3) in the gonads of scallops in treatments II and IV and the still monounsaturated 20:Ͼ1 and 22:5 (n-3) in all the samples implies eggs of less quality (Whyte et al 1991). Therefore, the incorporation of these fatty acids (n-3, n-6) occurs through diets containing microalgae.…”

Section: Discussionmentioning

confidence: 92%

Lipid and Polypeptide Profiles in the Female Portion of Gonads from Diet-Conditioned Broodstock of North Chilean ScallopsArgopecten purpuratus

Cerpa

González

Becerra

et al. 2003

North American Journal of Aquaculture

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Broodstock of North Chilean scallops Argopecten purpuratus were transferred from Tongoy (30Њ16ЈS, 71Њ32ЈW) to Dichato (36Њ32ЈS, 72Њ57ЈW), Chile, to be conditioned in a hatchery. The scallops were subjected to four different microalgal feeding treatments for 45 d. The feeding treatments were as follows: (1) equal parts of Isochrysis galbana and Dunaliella tertiolecta, (2) equal parts of I. galbana, Chaetoceros gracilis, and D. tertiolecta, (3) equal parts of I. galbana and C. gracilis, and (4) equal parts of C. gracilis and D. tertiolecta. All microalgae were collected in the exponential phase of growth (feed quantities, 1-3 ϫ 10 5 cells/mL) in the hatchery. One group of scallops kept in ''lanterns'' in the sea served as a control. After 20 and 45 d of conditioning, gonad samples were taken from both immature and mature scallops (distinguished by coloring) from the treatment and control groups for biochemical analysis. Higher-molecular-weight polypeptides (72)(73)(74)(75)(76)(77)(78)(79)(80)(81)(82)(83)(84)(85)(86)(87)(88)(89) in the treatment groups and 69-107 kDa in the control group) were found more frequently in mature than in immature scallops. Moreover, a greater amount of polypeptides of a higher total molecular weight was observed in mature gonads. Polypeptide quality was unaffected by treatment but differed from that of scallops in the control group. Polypeptides of specific molecular weights in each maturity stage were detected. Although the quantity of total lipid was high in both treatment and control scallops, qualitative and quantitative differences in several fatty acids were observed. The presence of 20:5, 22:6, and 18:3 (where the number before the colon is the number of carbon atoms and the number after the colon is the number of double bonds) shows that the development of female gonads was good when the scallops were fed I. galbana and C. gracilis. Female gonad development was similar in scallops fed D. tertiolecta and C. gracilis.to the next. Therefore, it is necessary to condition adults to develop high-quality gonads that produce gametes throughout the year. It is also important that the gametes produced by hatchery broodstock be in good condition to ensure high survival of the larval stages, with high growth ratios and more resistance to bacterial and fungal diseases. Physical (temperature) and nutritional factors are important to the successful conditioning of a scallop broodstock. Spawners fed an adequate diet that is rich in proteins and polyunsaturated fatty acids

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Depletion of nutrient reserves during embryogenesis in the scallop Patinopecten yessoensis (Jay)

Cited by 49 publications

References 31 publications

The effects of dietary supplements of polyunsaturated fatty acid on pearl oyster, Pinctada margaritifera L., gonad composition and reproductive output

The effects of dietary supplements of polyunsaturated fatty acid on pearl oyster, Pinctada margaritifera L., gonad composition and reproductive output

Seasonal Variations in Maternal Provisioning of Crepidula fornicata (Gastropoda): Fatty Acid Composition of Females, Embryos and Larvae

Lipid and Polypeptide Profiles in the Female Portion of Gonads from Diet-Conditioned Broodstock of North Chilean ScallopsArgopecten purpuratus

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