Maternal allocation of lipid classes and fatty acids with seasonal egg production in Atlantic cod (Gadus morhua) of wild origin

Bachan, Michelle; Fleming, Ian A.; Trippel, Edward A.

doi:10.1007/s00227-012-2014-6

Cited by 17 publications

(14 citation statements)

References 51 publications

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“…fornicata , the ω3/ω6 ratio was twice higher in May and July as compared to February and September, and thus strongly suggested that early embryos had a higher quality in the middle of the reproductive season. Seasonal variations in egg quality have been demonstrated in some fish species with potential consequences on larval survival [79,80]. Although our data cannot allow us to assess such consequences, the observed changes in FA composition over the spawning season are expected to impact hatching success and larval performance in C .…”

Section: Discussionmentioning

confidence: 93%

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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Section: Discussionmentioning

confidence: 93%

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

et al. 2013

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“…Further studies suggest also that oleic acid, a specific fatty acid, is preferentially used in females for yolk supply in fish . High levels of polyunsaturated fatty acids (PUFA) in eggs are also correlated with better quality and fecundity in many fish species . In this way, maternal investment could also affect ovary isotopic composition.…”

Section: Discussionmentioning

confidence: 99%

“…[73,74] High levels of polyunsaturated fatty acids (PUFA) in eggs are also correlated with better quality and fecundity in many fish species. [75,76] In this way, maternal investment could also affect ovary isotopic composition. However, sperm is rich in ATP and glucose, which are essential for its mobility.…”

Section: Lipid Correction Modelsmentioning

confidence: 99%

Methods of lipid‐normalization for multi‐tissue stable isotope analyses in tropical tuna

Sardenne¹,

Ménard

Degroote

et al. 2015

Rapid Comm Mass Spectrometry

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Models using published estimates for parameters from other species cannot be used. Based on a range of lipid content that do not exceed 45%, we recommend the linear model to correct the bulk δ(13)C values in the investigated tissues but the parameters have to be estimated from a proportion of the original data for which chemical extraction is required and the isotopic values of bulk and lipid-free tissues are measured.

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“…Fatty acid composition in embryos and larvae during development may vary both in quality and quantity within the same species depending on environmental conditions (Dantagnan et al 2007), physiological events, or energy demands (Sargent et al 1997). Fish egg quality, determined by its biochemical composition, reflects the maternal contribution and is considered as a key maternal factor for successful embryonic development and hatching (Murua and Saborido-Rey 2003;Bachan et al 2012). In our study, despite attempts made to minimize confounding effects (using fish captured from the same location and feeding them identical diets while in captivity), we still observed noticeable differences in egg composition among females that resulted in large differences in hatching success.…”

Section: Fa Composition In Relation To Hatching Successmentioning

confidence: 99%

Assessing fatty acid remodelling during embryogenesis in Greenland halibut (Reinhardtius hippoglossoides) exposed to hypoxia

et al. 2016

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Eggs of Greenland halibut (Reinhardtius hippoglossoides) are subjected to hypoxic conditions in the deep waters of the Estuary and Gulf of St. Lawrence during their development. The aim of this study was to determine whether there was potential remodelling of fatty acids (FA) during embryogenesis in eggs exposed to several levels of dissolved oxygen (DO). Fertilized eggs were exposed to four DO levels: severely hypoxic (10 and 20% sat [percent saturation]), moderately hypoxic (35% sat), and normoxic (100% sat). No FA remodelling was observed in eggs submitted to the different DO levels. The most abundant FA in the polar lipid fraction were docosahexaenoic (DHA, 22: 6 n-3) and eicosapentaenoic (EPA, 20: 5 n-3) acids (26 and 22%, respectively), the latter being positively correlated with hatching success. Batches with low hatching success were characterized by eggs with decreased levels of polar EPA and DHA at the end of embryogenesis. Whatever the hatching success, the proportion of FA in the neutral fraction was always significantly lower compared to the polar fraction. Oleic acid (18: 1 n-9) (17%) was the main FA found in this fraction; together with gondoic acid (20:1 n-9), they explained most of the variation in hatching success.

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Maternal allocation of lipid classes and fatty acids with seasonal egg production in Atlantic cod (Gadus morhua) of wild origin

Cited by 17 publications

References 51 publications

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

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

Methods of lipid‐normalization for multi‐tissue stable isotope analyses in tropical tuna

Assessing fatty acid remodelling during embryogenesis in Greenland halibut (Reinhardtius hippoglossoides) exposed to hypoxia

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