Respiration and nitrogen metabolism of Atlantic halibut eggs (Hippoglossus hippoglossus)

Finn, Roderick Nigel; Fyhn, Hans Jørgen; Evjen, M. S.

doi:10.1007/bf01313466

Cited by 59 publications

(57 citation statements)

References 38 publications

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“…In other fish species, e.g. Atlantic halibut Hippoglossus hippoglossus, egg biochemical composition was found to be more size-dependent than egg stage-dependent (Finn et al 1991). although in further species, e.g.…”

Section: Discussionmentioning

confidence: 99%

“…Most of the knowledge on energy reserves and energy metabolism in developing fish eggs and larvae has been primarily based on eggs that have been naturally or artificially fertilised in culture tanks (Watanabe 1982, Vetter et al 1983, Fyhn & Serigstad 1987, Fyhn 1989, Miranda et al 1990, Finn et al 1991, Srivastava & Brown 1991, Tamaru et al 1992. Little information exists in the literature on bioenergetic studies 'E-mail: castor@uvigo es Present addresses: "Instituto Espafiol de Oceanografia.…”

Section: Introductionmentioning

confidence: 99%

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Effect of biotic and abiotic factors on the biochemical composition of wild eggs and larvae of several fish species

Guisande¹,

Riveiro²,

Sola³

et al. 1998

Mar. Ecol. Prog. Ser.

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The aim of this study is to establish possible associations between temperature, salinity and egg and larval abundance, and the biochemical composition of wild ferthsed eggs and larvae of marine fish species. Eggs and larvae of the most abundant species at each station at the time of sampling were collected during 2 surveys carried out from 25 March to 14 Apnl 1995 (MPH-95) for collecting eggs and from 30 May to 16 June (SEFOS-95) for collecting larvae. Both surveys were carried out on the N-NW coast of the Iberian Peninsula. Egg size, egg abundance, egg stage, temperature and salinity explained a small variance in the high variation observed within and between stations in protein, carbohydrate and lipid content of the eggs in both Trachurus trachurus and Scomber scombrus. Conversely, protein, carbohydrate and lipid content of larvae in Sardina pllchardus, Engraulis encrasicolus and T trachurus seemed to vary according to either larval body length, temperature, salinity a n d o r larval abundance. Protein, carbohydrate and lipid content increased as larval body length increased for the 3 species. However, a percentage of lipid and protein in the larvae of the 3 species varied according to prevailing buoyancy conditions. An increment of larval lipid percentage and a reduction of larval protein percentage was observed as temperature increased and salinity decreased, the opposite case causing an increase in protein percentage and a decrease in lipid percentage of the larvae. This trade-off between protein and lipid production is interpreted as a mechanism to achieve optimal larval buoyancy.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of biotic and abiotic factors on the biochemical composition of wild eggs and larvae of several fish species

Guisande¹,

Riveiro²,

Sola³

et al. 1998

Mar. Ecol. Prog. Ser.

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“…Oocyte swelling due to water entry may reach about two-to fivefold the initial volume (Greeley et al, 1986;Selman and Wallace, 1983;Watanabe and Kuo, 1986). This results in the adjustment of the buoyancy of ovulated eggs either to pelagic or to benthic characteristics, depending on the species (Finn et al, 2002b;Finn et al, 2002a;Fyhn et al, 1999). Hydration appears to be induced by the combination of two different biological processes leading to a transient increase of yolk osmolarity.…”

Section: Introductionmentioning

confidence: 99%

Hydration of rainbow trout oocyte during meiotic maturation andin vitroregulation by 17,20β-dihydroxy-4-pregnen-3-one and cortisol

Milla¹,

Jalabert²,

Rime³

et al. 2006

Journal of Experimental Biology

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Although oocytes of many teleost fish, especially marine species, are subjected to a hydration process during meiotic maturation, which leads to an important volume increase, no noticeable hydration of the preovulatory oocyte has ever been reported in rainbow trout (Oncorhynchus mykiss). In the present study, oocyte water content and dry mass were monitored using consecutive samples taken in vivo from the same female rainbow trout, from 4-5·days prior to ovulation to up to 7·days postovulation. In addition, yolk protein electrophoretic patterns were compared between oocytes sampled prior to germinal vesicle breakdown (GVBD) and unfertilized eggs. Furthermore, the effect of the maturation-inducing steroid (17,20␤ ␤-dihydroxy-4-pregnen-3-one, 17,20␤ ␤-P), cortisol and 11-deoxycorticosterone (DOC) on oocyte dry and wet masses, as well as GVBD occurrence was assessed in vitro. Finally, mRNA expression profiles of glucocorticoid and mineralocorticoid receptors as well as 11␤ ␤-hydroxysteroid dehydrogenase (11␤ ␤-HSD) were monitored in the periovulatory ovary by real-time PCR.Both in vivo and in vitro data showed, for the first time in rainbow trout, that a significant oocyte hydration occurs during oocyte maturation. In addition, an intra-oocyte dry matter increase was reported in vivo during the periovulatory period. However, yolk protein migration patterns were similar in preGVBD oocytes and unfertilized eggs, suggesting that no or little yolk proteolysis occurs during oocyte maturation. We also showed that oocyte hydration can be induced in vitro by 17,20␤ ␤-P and cortisol but not by DOC. In contrast, GVBD was only observed after 17,20␤ ␤-P stimulation. Finally, real-time PCR analysis showed an up-regulation of 11␤ ␤-HSD and glucocorticoid receptor 2 transcripts in the ovary at the time of oocyte maturation. Together, these results suggest that cortisol could participate in the control of oocyte hydration and possibly in other periovulatory ovarian functions.

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“…The hydration of the pelagic egg of marine teleosts has also been associated with the appearance of a large pool of free amino acids, FAA (Fyhn 1993, Matsubara & Sawano 1995, Thorsen & Fyhn 1996, Matsubara et al 2000, Reith et al 2001, Wright & Fyhn 2001, Finn et al 2002. The emerging FAA pool has a remarkably similar profile among the examined species (Thorsen & Fyhn 1991, Thorsen et al 1993, Rønnestad et al 1996, Finn et al 2002) and a phylogenetic implication has been suggested (Fyhn et al 1999).…”

Section: Introductionmentioning

confidence: 95%

“…Other marine teleosts spawn benthic eggs. These fishes are termed pelagophils and benthophils, respectively (LaFleur & Thomas 1991, Finn et al 2002. The Labridae are a family of exclusively marine teleosts that are highly diversified and include mostly tropical pelagophils but also some benthophils (Richards & Leis 1984, Nelson 1994.…”

Section: Introductionmentioning

confidence: 99%

Differential processing of yolk proteins during oocyte hydration in marine fishes (Labridae) that spawn benthic and pelagic eggs

Finn

Wamboldt²,

Fyhn³

2002

Mar. Ecol. Prog. Ser.

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Respiration and nitrogen metabolism of Atlantic halibut eggs (Hippoglossus hippoglossus)

Cited by 59 publications

References 38 publications

Effect of biotic and abiotic factors on the biochemical composition of wild eggs and larvae of several fish species

Effect of biotic and abiotic factors on the biochemical composition of wild eggs and larvae of several fish species

Hydration of rainbow trout oocyte during meiotic maturation andin vitroregulation by 17,20β-dihydroxy-4-pregnen-3-one and cortisol

Differential processing of yolk proteins during oocyte hydration in marine fishes (Labridae) that spawn benthic and pelagic eggs

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