Zobrazeno 1 - 10
of 86
pro vyhledávání: '"Bertil Borg"'
Autor:
Yi Ta Shao, Feng-Yu Wang, Wen-Chun Fu, Hong Young Yan, Kazuhiko Anraku, I-Shiung Chen, Bertil Borg
Publikováno v:
PLoS ONE, Vol 9, Iss 6, p e100330 (2014)
Optomotor studies have shown that three-spined sticklebacks (Gasterosteus aculeatus) are more sensitive to red during summer than winter, which may be related to the need to detect the red breeding colour of males. This study aimed to determine wheth
Externí odkaz:
https://doaj.org/article/5bb74e13f2ae4105adbae78c7a213932
Publikováno v:
General and Comparative Endocrinology. 257:122-129
Leptin modulates all levels of the reproductive endocrine axis in mammals, and in turn, both leptin and the leptin receptor are regulated by sex steroids. The aim of this study was to investigate if sex steroids regulate the leptin system also in fis
Autor:
Bertil Borg, Chrysoula Roufidou
Publikováno v:
Journal of fish biology. 94(3)
The ovarian fluid properties of the three-spined stickleback Gasterosteus aculeatus were studied in overripe and non-overripe ovulated female sticklebacks and in females that were implanted with Silastic capsules containing testosterone (T), oestradi
Autor:
Ian Mayer, Bertil Borg, Marion Sebire, Monika Schmitz, Ioanna Katsiadaki, Chrysoula Roufidou, Yi Ta Shao
Publikováno v:
General and comparative endocrinology. 257
Female three-spined sticklebacks are batch spawners laying eggs in a nest built by the male. We sampled female sticklebacks at different time points, when they were ready to spawn and 6, 24, 48 and 72h post-spawning (hps) with a male. Following spawn
Publikováno v:
General and Comparative Endocrinology. 158:178-182
In many animals, including the three-spine stickleback (Gasterosteus aculeatus), photoperiod strongly influences reproduction. The aim of this study was to investigate if feedback mechanisms on the brain-pituitary-gonadal axis play a role in mediatin
Publikováno v:
Behaviour. 145:509-525
11-ketotestosterone is not responsible for the entire testicular effect on male reproductive behaviour in the threespine stickleback
Publikováno v:
Journal of Experimental Biology. 209:4230-4237
SUMMARYSperm of the three-spined stickleback Gasterosteus aculeatusdisplay a prolonged motility in the presence of ovarian fluid. The ovarian fluid prolongs sperm motility in freshwater from approximately 1 min to several hours, a trait that possibly
Autor:
E. Hoffmann, Bertil Borg
Publikováno v:
Journal of Fish Biology. 68:1451-1459
The pectoral muscle index (I PM ) (I PM = 100 M PM M -1 , where M PM and M are the pectoral muscle and body masses, respectively) fin-area and fin ray length were studied over a year in male and female three-spined stickleback Gasterosteus aculeatus
Publikováno v:
General and Comparative Endocrinology. 145:263-269
In teleost fishes, like in other vertebrates, the gonadal development is stimulated by two gonadotropic hormones; luteinizing hormone (LH) and follicle-stimulating hormone (FSH). To achieve a better understanding of the role of gonadotropins in teleo