The type locality of Gasterosteus
aculeatus williamsoni and its significance in the taxonomy of Californian Sticklebacks.
Systematics of Gasterosteus
aculeatus, with particular reference to intergradation and introgression along the Pacific Coast of North American: a commentary on a recent contribution.
2004) reported gonadal sex reversal in a species of wild fish Gasterosteus
aculeatus following treatment with 17a ethinylestradiol (estrogen).
5,11-13) M n EUGLENOPHYTA (6) Euglenophyceae--Euglenales Euglena gasterosteus
Skuja (2,4) D l E.
28 ng g-1 fish respectively which is in agreement of cortisol values among adult Gasterosteus
aculeatus held under control conditions (2-8 ng g-1 fish; Pottinger et al.
The fish community of the river was dominated numerically by three-spined stickleback Gasterosteus
aculeatus (on average 45% in the seasonal catches), followed by gudgeon (25%).
Administration of melatonin has been reported to mimic a short non-stimulatory photoperiod cycle and to influence maturation in male three-spined sticklebacks Gasterosteus
aculeatus, kept under stimulatory long photoperiods (Bornestaf et al.
Selective predation for vertebral phenotype in Gasterosteus
aculeatus: reversal in the direction of selection at different larval sizes.
In addition, 28 species of fishes have been recorded between Penobscot and Cobscook Bays including Myoxocephalus aenaeus, Pseudopleuronectes americanus, Gasterosteus
aeuleatus, and Microgadus tomeod (Lazzari & Stone 2006), all of which feed predominantly on the zoobenthos (Bowman et al.
Frequency distribution of parasites in a population of three-spined sticklebacks Gasterosteus
Phenotypic manipulation by the cestode parasite Schistocephalus solidus of its intermediate host, Gasterosteus
aculeatus, the threespine stickleback.
Unfortunately, all these fossil spines are waterworn to some extent and there is the possibility that a waterworn Gasterosteus
spine could be that of Pungitius.
aculeatus Linnaeus, Threespine stickleback.
This study will characterize the mating system of Gasterosteus
aculeatus, a territorial fish with parental care.
Factors associated with and fitness effects of nest-raiding in the three-spined stickleback, Gasterosteus
aculeatus, in a natural situation.