(v. t.) Any one of numerous species of small fishes of the genus Gasterosteus and allied genera. The back is armed with two or more sharp spines. They inhabit both salt and brackish water, and construct curious nests. Called also sticklebag, sharpling, and prickleback.
Example Sentences:
(1) Territorial sticklebacks were habituated to a male conspecific confined to a clear glass tube in a two stage experiment.
(2) The activity of the three enzymes was determined in the liver of ten-spined stickleback, a host of S. pungitii plerocercoids.
(3) Blood cells from Baltic salmon, Salmo salar, three-spined stickleback, Gasterosteus aculeatus, eel pout, Zoarces viviparus, crucian carp, Carassius carassius, African catfish, Clarias gariepinus, and reedfish, Calamoichthys calabaricus, were incubated with tritiated 11 beta-hydroxyandrostenedione (OHA) or 11-ketoandrostenedione (OA).
(4) The distribution of olfactory fibers in the brain of the three-spined stickleback was visualized by means of immunohistochemistry.
(5) At one extreme they are well developed (macrosmatic) such as in sharks and eels, and at the other they are poorly developed (microsmatic) such as in pike and stickleback.
(6) Stickleback Vg can be purified by con A-Sepharose chromatography.
(7) The costs of parental behaviour (fanning) were examined in male 1+ and 2+ three-spined sticklebacks (Gasterosteus aculeatus) by comparing the loss of wet mass incurred by starved parental males during the egg care period to those incurred by starved non-parental males during this same period.
(8) Kidney cells of the marine stickleback Spinachia have been studied with histochemical methods for the demonstration of glycoconjugates.
(9) The effect of administration of homologous prolactin on fanning behavior, an important aspect of parental care in sticklebacks and many other teleost fish, was studied.
(10) In the corpuscles of Stannius of sticklebacks and eels two cell types are described of presumably endocrine nature.
(11) These branches are only occasionally observed in the sensory epithelium of the nine-spined stickleback.
(12) Tritiated androstenedione was in vitro aromatized to estrone and estradiol by the stickleback brain.
(13) These findings suggest the existence of a physiological positive feedback within the gonadal-pituitary axis of the male stickleback when stimulated into its breeding condition by long photoperiod.
(14) The findings strongly suggest that the male sex hormone may exert a double control on the renal cells in the stickleback, at both the cytoplasmic and nucleolar levels.
(15) The results obtained demonstrate that administration of cyproterone acetate to male sticklebacks has an inhibitory effect on renal target cells, apparently indistinguishable from the changes induced by lack of male sex hormone, and that this drug may be a valid substitute for castration in fish.
(16) Thus, the three-spined stickleback and the nine-spined stickleback show considerable differences in the organization of the sensory regions of the olfactory epithelium.
(17) Gasterosteus aculeatus was the most heavily infected fish with 4 larval cestode species; for two of them (D. ditremum and S. solidus) the three-spined stickleback was found to be the required fish intermediate host.
(18) Field observations at one site on brown trout (Salmo trutta) and three-spined sticklebacks (Gasterosteus aculeatus) concurrently infected with mature Neoechinorhynchus rutili, together with the knowledge that large trout can be piscivorous in habit led to the proposition that the post-cyclic transmission of N. rutili may occur between these fish species.
(19) No significant mortality of caged stickleback fish occurred in these pools.
(20) The electrophoretic pattern of a sixth locus, mitochondrial NADP-dependent isocitrate dehydrogenase (IDH), was found to be sexually dimorphic but otherwise invariant in sticklebacks.
Water
Definition:
(n.) The fluid which descends from the clouds in rain, and which forms rivers, lakes, seas, etc.
(n.) A body of water, standing or flowing; a lake, river, or other collection of water.
(n.) Any liquid secretion, humor, or the like, resembling water; esp., the urine.
(n.) A solution in water of a gaseous or readily volatile substance; as, ammonia water.
(n.) The limpidity and luster of a precious stone, especially a diamond; as, a diamond of the first water, that is, perfectly pure and transparent. Hence, of the first water, that is, of the first excellence.
(n.) A wavy, lustrous pattern or decoration such as is imparted to linen, silk, metals, etc. See Water, v. t., 3, Damask, v. t., and Damaskeen.
(v. t.) An addition to the shares representing the capital of a stock company so that the aggregate par value of the shares is increased while their value for investment is diminished, or "diluted."
(v. t.) To wet or supply with water; to moisten; to overflow with water; to irrigate; as, to water land; to water flowers.
(v. t.) To supply with water for drink; to cause or allow to drink; as, to water cattle and horses.
(v. t.) To wet and calender, as cloth, so as to impart to it a lustrous appearance in wavy lines; to diversify with wavelike lines; as, to water silk. Cf. Water, n., 6.
(n.) To add water to (anything), thereby extending the quantity or bulk while reducing the strength or quality; to extend; to dilute; to weaken.
(v. i.) To shed, secrete, or fill with, water or liquid matter; as, his eyes began to water.
(v. i.) To get or take in water; as, the ship put into port to water.
Example Sentences:
(1) These surveys show that campers exposed to mountain stream water are at risk of acquiring giardiasis.
(2) 5-Azacytidine (I) stability was increased approximately 10-fold over its stability in water or lactated Ringer injection by the addition of excess sodium bisulfite and the maintenance of pH approximately 2.5.
(3) And this is the supply of 30% of the state’s fresh water.” To conduct the survey, the state’s water agency dispatches researchers to measure the level of snow manually at 250 separate sites in the Sierra Nevada, Rizzardo said.
(4) We report a case of a sudden death in a SCUBA diver working at a water treatment facility.
(5) We assessed changes in brain water content, as reflected by changes in tissue density, during the early recirculation period following severe forebrain ischemia.
(6) The water is embossed with small waves and it has a chill glassiness which throws light back up at the sky.
(7) The reduction rates of peripheral leukocytes, lung Schiff bases and lung water content were not identical in rats depleted from leukocyte after inhalation injury.
(8) And that, as much as the “on water, operational” considerations, is why we are being kept in the dark.
(9) Excretion of inactive kallikrein again correlated with urine flow rate but the regression relationship between the two variables was different for water-load-induced and frusemide-induced diuresis.
(10) The Hamilton-Wentworth regional health department was asked by one of its municipalities to determine whether the present water supply and sewage disposal methods used in a community without piped water and regional sewage disposal posed a threat to the health of its residents.
(11) Comprehensive regulations are being developed to limit human exposure to contamination in drinking water by the United States Environmental Protection Agency (EPA) under the authority of the Safe Drinking Water Act (SDWA).
(12) Undaunted by the sickening swell of the ocean and wrapped up against the chilly wind, Straneo, of Woods Hole Oceanographic Institution, one of the world's leading oceanographic research centres, continues to take measurements from the waters as the long Arctic dusk falls.
(13) Streaming is shown to occur in water in the focused beams produced by a number of medical pulse-echo devices.
(14) The role of adrenergic agents in augmenting proximal tubular salt and water flux, was studied in a preparation of freshly isolated rabbit renal proximal tubular cells in suspension.
(15) These studies also suggest at least two mechanisms for uric acid reabsorption; one sodium dependent, the other independent of sodium and water transport.
(16) Proposals to increase the tax on high-earning "non-domiciled" residents in Britain were watered down today, after intense lobbying from the business community.
(17) The amount of water, creatinine, electrolytes, proteins, and enzymes were higher during the day (up to three fold, p always less than 0.05), while equal amounts of amino acids were excreted in the day and the night period.
(18) It is especially efficacious in evaluating patients with cystic lesions, especially those with complex cysts not clearly of water density.
(19) 'The only way that child would have drowned in the bath is if you were holding her under the water.'
(20) Changes in regional cerebral blood flow (rCBF) were measured over 254 cortical regions during caloric vestibular stimulation with warm water (44 degrees C).