Endocrine changes during natural spawning in the white sucker, Catostomus commersoni

Stacey, N. E.; MacKenzie, Duncan S.; Marchant, Tracy A.; Kyle, Laurence H.; Peter, Richard

doi:10.1016/0016-6480(84)90076-5

Cited by 122 publications

(32 citation statements)

References 45 publications

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“…It is difficult to compare meaningfully our results with those of Stacey et al (1984). We determined the plasma growth hormone level during the major phase of gonadal growth, spawning, and subsequent recovery, a period of 8 months in all.…”

Section: Discussionmentioning

confidence: 99%

“…Only a single study in fish has investigated plasma growth hormone levels during sexual maturation (Stacey et al, 1984). This reported that growth hormone levels in male white suckers (Cutostomus commersoni) were not obviously related to changes in reproductive status (though these authors investigated the final stages of maturation only), whereas in female suckers the plasma growth hormone level increased significantly at ovulation, and remained elevated following spawning.…”

Section: Accepted August 2 1990mentioning

confidence: 99%

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Plasma growth hormone levels during sexual maturation in diploid and triploid rainbow trout (Oncorhynchus mykiss)

Sumpter

Lincoln

Bye

et al. 1991

General and Comparative Endocrinology

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Plasma growth hormone concentrations were determined in diploid and triploid rainbow trout of both sexes during sexual maturation. Diploid females grow large ovaries, whereas triploid female trout show no ovarian development. The plasma growth hormone concentration in triploid female trout remained low and unchanged throughout the study, whereas it rose slightly, but significantly, in the diploid females that matured, but not in those that remained immature. On the other hand, triploid males do develop testes like their diploid counterparts. In both groups spermiation was accompanied by a steady rise in the plasma growth hormone concentration. The results suggest that the elevated growth hormone concentration in mature male trout was a consequence not of reproduction per se, but of the loss of condition that accompanied spawning. This hypothesis was supported by the results from the females. Apart from a temporary loss in the mature diploids caused by stripping of the eggs, female trout did not lose condition, neither did they show any change in the plasma growth hormone concentration during the period when they ovulated. These results suggest that it was the nutritional insuffrciency accompanying reproduction in male fish that caused the elevation in growth hormone concentration. In fact, a strong negative correlation between the plasma growth hormone concentration and the condition factor of the fish was observed. Q

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Section: Discussionmentioning

confidence: 99%

Section: Accepted August 2 1990mentioning

confidence: 99%

Plasma growth hormone levels during sexual maturation in diploid and triploid rainbow trout (Oncorhynchus mykiss)

Sumpter

Lincoln

Bye

et al. 1991

General and Comparative Endocrinology

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“…There was, at this time, considerably less information available on hormone-behaviour interactions in free-living populations and this tended to be restricted to spawning migrations or events where fish could be captured and sampled from the shore (e.g. Scott et al 1984;Stacey et al 1984). There was very little known about these relationships in marine species.…”

Section: Reproductive Behaviourmentioning

confidence: 99%

Fish physiology and ecology: the contribution of the Leigh Laboratory to the collision of paradigms

Pankhurst

Herbert

2013

New Zealand Journal of Marine and Freshwater Research

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The often pragmatic division of studies of function (physiology), and the regulation of distribution and abundance of organisms (ecology), as laboratory and field studies respectively, can create an unhelpful intellectual division that runs the risk of ignoring the interaction of physiology, behaviour and environment that regulates the lives of animals in the wild. This review examines the historical and current contribution of ecophysiological research conducted from the University of Auckland's Leigh Laboratory in bridging these paradigms, and generating new insights into animal function and community organisation. The assessment focuses on endocrine control processes, and metabolic and behavioural responses of fish to artificial and natural stressors, and examines tracks of future research needed to underpin understanding of likely effects of predicted environmental change on individuals and populations.

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“…Later on, high levels of circulating GH were reported in the final stages of the reproductive cycle: During gonadal recrudescence and spawning in goldfish (Marchant and Peter 1986) at the time of ovulation in white sucker (Stacey et al 1984), and during spermiation in trout and Atlantic salmon, but not so clearly in the females (trout: Sumpter et al 1991;Le Gac et al 1991 and salmon: Le Gac, unpublished data). Yu et al (1991) showed synchronised sharp GH surges in ovulatory females and spawning male goldfish.…”

Section: Growth Hormone Influences Puberty and Gonad Developmentmentioning

confidence: 99%

Growth hormone (GH) and reproduction: a review

Gac

Blaise

Fostier

et al. 1993

Fish Physiol Biochem

171

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ResumeLes interactions entre les fonctions de croissance et de reproduction mises en evidence chez de nombreux vert6br6s, sont particulierement aigiies A certaines tapes du cycle vital des poissons. Nous d6crivons les interactions endocrines existant entre les axes somatrope et gonadotrope en insistant sur le role jou6 par l'hormone de croissance (GH). L'analyse compare de ces phenomenes chez les mammiferes, les poissons et les amphibiens permet de sugg6rer que la GH joue un rle sp6cifique dans la physiologie de la puberty, la gametog6nese et la fertility. Nous mettons en evidence l'apport original des tudes effectu6es sur le module poisson dans ce champ d'investigation. AbstractInteraction between growth and reproduction occurs in many vertebrates and is particularly obvious at certain stages of the life cycle in fish. Endocrine interactions between the gonadotropic axis and the somatotropic axis are described, the potential role of GH being emphasised. A comparative analysis of these phenomena in mammals, amphibians and fish, suggests a specific role of GH in the physiology of puberty, gametogenesis and fertility. It also shows the original contribution made by studies on the fish model in this field of investigations.

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Endocrine changes during natural spawning in the white sucker, Catostomus commersoni

Cited by 122 publications

References 45 publications

Plasma growth hormone levels during sexual maturation in diploid and triploid rainbow trout (Oncorhynchus mykiss)

Plasma growth hormone levels during sexual maturation in diploid and triploid rainbow trout (Oncorhynchus mykiss)

Fish physiology and ecology: the contribution of the Leigh Laboratory to the collision of paradigms

Growth hormone (GH) and reproduction: a review

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