Biochemical composition and quality of captive-spawned cobia Rachycentron canadum eggs

Faulk, Cynthia K.; Holt, G. Joan

doi:10.1016/j.aquaculture.2008.03.050

Cited by 34 publications

(45 citation statements)

References 43 publications

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“…Phaeocystis) [16], and as a result EFA production in the oceans is expected to decrease [12,16]. Beyond this shift in availability of EFAs, OA may alter the way that animals process and store FAs obtained from their diet, which would have consequences for the animal's survival and the transfer of FAs to higher trophic levels [17][18]. We selected the marine fish red drum (Sciaenops ocellatus) as a model species to conduct the first experiments on the potential effect of OA on FA composition of fish larvae.…”

Section: Introductionmentioning

confidence: 99%

“…We selected the marine fish red drum (Sciaenops ocellatus) as a model species to conduct the first experiments on the potential effect of OA on FA composition of fish larvae. Red drum is a species of high economic importance in aquaculture and recreational fisheries, inhabiting estuarine and coastal areas on the east coast of North America, which are endangered by global change and OA [2], and the species has been the subject of intense research on the dynamics and ecological significance of variations in FA composition of eggs and larvae [17][18].…”

Section: Introductionmentioning

confidence: 99%

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Ocean acidification increases fatty acids levels of larval fish

et al. 2015

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Rising levels of anthropogenic carbon dioxide in the atmosphere are acidifying the oceans and producing diverse and important effects on marine ecosystems, including the production of fatty acids (FAs) by primary producers and their transfer through food webs. FAs, particularly essential FAs, are necessary for normal structure and function in animals and influence composition and trophic structure of marine food webs. To test the effect of ocean acidification (OA) on the FA composition of fish, we conducted a replicated experiment in which larvae of the marine fish red drum (Sciaenops ocellatus) were reared under a climate change scenario of elevated CO 2 levels (2100 matm) and under current control levels (400 matm). We found significantly higher whole-body levels of FAs, including nine of the 11 essential FAs, and altered relative proportions of FAs in the larvae reared under higher levels of CO 2 . Consequences of this effect of OA could include alterations in performance and survival of fish larvae and transfer of FAs through food webs.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ocean acidification increases fatty acids levels of larval fish

et al. 2015

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“…In particular, the roles of chemical constituents of yolk on early embryonic development have been intensively investigated in a number of fish species (Furuita et al 2003;Faulk and Holt 2008;Lanes et al 2012a). However, less data are available on the role of non-yolk cytoplasmic components such as structural and regulatory proteins, cortical alveoli content and maternal transcripts that are accumulated during oogenesis (Brooks et al 1997;Bobe and Labbé 2010;Lubzens et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Transcriptome of Atlantic Cod (Gadus morhua L.) Early Embryos from Farmed and Wild Broodstocks

et al. 2013

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A number of efforts have been made to elucidate factors regulating egg quality in fish. Recently, we have shown that eggs originating from wild broodstock (WB) of Atlantic cod (Gadus morhua) are of superior quality to those derived from farmed broodstock (FB), and this is associated with differences in chemical composition of egg yolk. However, non-yolk cytoplasmic components accumulated during oogenesis, such as maternal transcripts, have not been studied extensively in fish. The aim of the present study was to characterize putative maternal mRNA transcriptome in fertilized eggs of Atlantic cod, and to compare transcript pools between WB and FB in order to investigate the relation between egg developmental potential and putative maternal mRNA deposits. We performed high-throughput 454 pyrosequencing. For each WB and FB groups, five cDNA libraries were individually tagged and sequenced, resulting in 98,687 (WB) and 119,333 (FB) average reads per library. Sequencing reads were de novo assembled, annotated, and mapped. Out of 13,726 identified isotigs, 238 were differentially expressed between WB and FB, with 155 isotigs significantly upregulated (P<0.05; fold change ≥2.0) in WB. The sequence reads were mapped to 11,340 different Atlantic cod transcripts and 158 sequences were differentially expressed between the two groups. Important transcripts involved in fructose metabolism, fatty acid metabolism, glycerophospholipid metabolism and oxidative phosphorylation were differentially represented between the two broodstock groups, showing potential as biomarkers of egg quality in teleosts. Our findings contribute to the hypothesis that maternal mRNAs affect the egg quality and, consequently, early development of fish.

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“…(Osure & Phelps, 2006). It is well accepted that the biochemical composition of eggs depends on diet, age of broodstock, genetic differences and spawning season (Faulk & Holt, 2008). In our study, tilapia broodstock from different hatcheries were fed with a commercial diet adequate for reproduction, which explains the similarity in biochemical composition of eggs from the three broodstock groups, despite the different origin of brooders.…”

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confidence: 68%

Evaluating quality of Nile tilapia (Oreochromis niloticus) eggs and juveniles from different commercial hatcheries

Rodriguez

García-Ulloa

Llamas

et al. 2017

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ABSTRACT.Our objective was to assess the quality of eggs and juvenile of Nile tilapia (Oreochromis niloticus) from broodstock of three commercial hatcheries (H1, H2, and H3). Larval weight was significantly higher for H2 and H3 hatcheries (P < 0.05). After 45-day growth, weight of juveniles of H2 was higher, while specific growth rate was significantly higher for H1 and H2 (P < 0.05). After the ammonia stress test, no significant differences in mortality were found among larvae from the three hatcheries, although a positive relationship between carbohydrate content in eggs and juvenile mortality was observed (P < 0.05). After the salinity stress test, the lowest and highest mortality (P < 0.05) occurred respectively in tilapia larvae from the H1 (24.2%) and H3 (57.8%) hatcheries. We concluded that egg quality was not affected by tilapia broodstock from the three hatcheries studied, but differences were obtained for growth performance, carbohydrate content, and survival of juveniles when exposed to the salinity stress test. These three indexes should be considered as potential juvenile quality criteria for tilapia.

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Biochemical composition and quality of captive-spawned cobia Rachycentron canadum eggs

Cited by 34 publications

References 43 publications

Ocean acidification increases fatty acids levels of larval fish

Ocean acidification increases fatty acids levels of larval fish

Transcriptome of Atlantic Cod (Gadus morhua L.) Early Embryos from Farmed and Wild Broodstocks

Evaluating quality of Nile tilapia (Oreochromis niloticus) eggs and juveniles from different commercial hatcheries

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