Physiological and molecular basis of fish oocyte hydration

Cerda, James J.; Fabra, Mercedes; Raldúa, Demetrio

doi:10.1007/978-1-4020-6235-3_12

Cited by 52 publications

(62 citation statements)

References 153 publications

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“…Therefore, more intensive hydration during the period of oocyte maturation in the former species can be suggested. As is known for the species with pelagic eggs, related water content in the oocytes increases from 54-76% before the period of matura tion to 76-93% before ovulation (Cerdà et al, 2007).…”

Section: Discussionmentioning

confidence: 98%

Gonadal condition, sperm motility, and initial stages of embryonic development in freckled goatfish Upeneus tragula (Mullidae)

Emel’yanova

Павлов

Thuan³

et al. 2015

J. Ichthyol.

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Development of sex cells, sperm motility, and initial stages of embryonic development are described in a tropical representative of the family Mullidae, freckled goatfish Upeneus tragula, from the coastal zone of Vietnam. In Nha Trang Bay, the gonads in the majority of sexually mature females are at IV, IV-V, and VI-IV maturity stages over the entire year, and the type of oogenesis is continuous. Anomalous structure of oocytes is registered in 15% of investigated females. In Ha Long Bay, the gonads of almost all sex ually mature females are at maturity stage II in December. In adult males, spermatozoa are the most numer ous in elongated spermiducts. Based on computer assisted analysis of motility of spermatozoa removed from a spermiduct and activated in marine water, sperm velocity reaches 53 µm/s in 1 min after activation, and the duration of progressive movements of spermatozoa does not exceed 5 min.

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Section: Discussionmentioning

confidence: 98%

Gonadal condition, sperm motility, and initial stages of embryonic development in freckled goatfish Upeneus tragula (Mullidae)

Emel’yanova

Павлов

Thuan³

et al. 2015

J. Ichthyol.

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“…In marine finfish that produce buoyant (pelagic) eggs in seawater (pelagophils), the oocyte undergoes a significant increase in size due to a rapid water uptake during maturation (reviewed by Cerdà et al, 2007). This process contributes to the positive buoyancy of eggs and early embryos in the ocean, which is essential for their survival and dispersal.…”

Section: Egg Formationmentioning

confidence: 99%

Functional Genomics and Proteomic Approaches for the Study of Gamete Formation and Viability in Farmed Finfish

Cerdà

Bobe

Babin³

et al. 2008

Reviews in Fisheries Science

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The sustained mass production of alevins in finfish aquaculture requires a deep understanding of the biological processes controlling gametogenesis, which ultimately will determine the quality of eggs and sperm. Functional genomics and proteomics technologies have been recently developed, expanding the scope of biological investigation from studying single genes or proteins to studying potentially all genes and proteins at once in a systematic manner. The application of these methods in aquaculture is still in its infancy, especially with regard to the study of fish reproduction, but in the near future its impact is envisaged because of their potential to uncover the complex genetic control of gamete formation. Here, we review recent studies employing high-throughput genomics and proteomics approaches that have been carried out to investigate the global pattern of gene and protein expression during finfish gametogenesis. The results of these studies have already identified a number of novel genes, maternal molecules, and proteins that may be essential during spermatogenesis, oogenesis, and early embryogenesis, thus greatly contributing to our current knowledge of the molecular mechanisms underlying egg and sperm formation. The full potential of genomics to uncover the molecular basis of fish gametogenesis is about to be unleashed with the sequencing of the genome and transcriptome of additional species and the development of methods to elucidate gene function.

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“…Specifically, in marine teleosts, about 67-75 % of the final egg size is rapidly achieved during oocyte maturation, resulting in a profound alteration or transformation of the structure of the oocyte as it becomes an egg (Cerdà et al 2007). It could thus be supposed that the relative contribution of oocyte hydration as a determinant of egg size should be more profound in marine pelagophils, while morphofunctional restrictions constraining the relationship between maternal body size and egg size should primarily occur during the stage of oocyte hydration in this ecological group of fishes.…”

Section: Introductionmentioning

confidence: 98%

“…The importance of oocyte hydration in the buoyancy of pelagophil eggs has been appreciated for more than a century (Fulton 1898); oocyte volume increase in marine pelagophils (3.1-to 8.4-fold) is much higher to species that produce benthic, non-buoyant eggs (1.0-to 3.0-fold) (Cerdà et al 2007). Specifically, in marine teleosts, about 67-75 % of the final egg size is rapidly achieved during oocyte maturation, resulting in a profound alteration or transformation of the structure of the oocyte as it becomes an egg (Cerdà et al 2007).…”

Section: Introductionmentioning

confidence: 99%

Maternal versus environmental constraints on the oocyte size of a marine pelagophil fish

et al. 2015

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Physiological and molecular basis of fish oocyte hydration

Cited by 52 publications

References 153 publications

Gonadal condition, sperm motility, and initial stages of embryonic development in freckled goatfish Upeneus tragula (Mullidae)

Gonadal condition, sperm motility, and initial stages of embryonic development in freckled goatfish Upeneus tragula (Mullidae)

Functional Genomics and Proteomic Approaches for the Study of Gamete Formation and Viability in Farmed Finfish

Maternal versus environmental constraints on the oocyte size of a marine pelagophil fish

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