(1) A shorter period of vitellus resorption (50 vs 65 day) was observed in (n-3)-deficient alevins as compared to controls.
(2) The rheotactism which appears as soon as the eyes are pigmented has been used for the presentation of lures, thus allowing the study of the stimuli releasing the feeding activity and the breeding of 913 individuals up to the alevin stage.
(3) In order to examine the role of thyroid hormones during salmonid development, techniques were developed for quantitative extraction of thyroxine from eggs, whole embryos, and alevins of chum salmon (Oncorhynchus keta) at various stages of development.
(4) In general, juvenile life stages of the three species tested were more sensitive to these inorganics than the alevin life stage.
(5) Among juveniles, no single species was consistently more sensitive to the inorganics than another; among alevins, Arctic grayling were generally more sensitive than coho salmon and rainbow trout.
(6) Frozen eggs, embryos, alevins, or fry were homogenized in ice-cold methanol.
(7) For Arctic grayling, sensitivity to all four inorganics was significantly greater in swim-up fry from Alaska than in alevins from Montana, and sensitivity to arsenic and copper was significantly greater in juveniles from Alaska than in juveniles from Montana.
(8) DNA cytofluorometric analysis of nuclei suspensions obtained from trout white myotomal muscle during different developmental stages (eleutherembyronic; alevin; yearling and adult) showed a consistently low S-cytometric phase during all stage in which myofibres of small diameters were present.
(9) Incubation of eggs at low pH caused a lower median survival, delayed hatching, higher alevin mortality and reduced the efficiency of yolk conversion to tissue of yolk-sac alevins.
(10) Nonadditive genetic variance accounted for more of the variation in fry size characters than in those of alevins.
(11) Large numbers of AChE cells were present in freshwater living alevins, in all stages of presmolts (n = 307-544), and in adult spawners (n = 696-1774), whereas seawater-living postmolts displayed a total lack of labeled cells.
(12) The resulting embryos and alevins were incubated at constant water temperatures of 4, 8, and 16 degrees C for pink salmon and 3, 8, and 15 degrees C for chum salmon.
(13) Polyamine composition of eggs and alevins from cultured and wild Atlantic salmon, Salmo salar, was compared during early development.
(14) The mean family survival of pure Harrison alevins (13.0%) was significantly lower than that of Capilano alevins (64.1%).
(15) The dense populations of AChE-stained cells in the alevins were all situated in the caudal part of the pineal end-vesicle.
(16) Mortality of an unknown etiology occurs after hatching and before emergence among Harrison River chinook salmon (Oncorhynchus tshawytscha) alevins incubated in the Chehalis River Hatchery, British Columbia.
(17) Atlantic salmon embryos and alevins can synthesize polyamines which could be associated with their growth and development.
(18) The most sensitive stages of development during chronic or episodic exposure to low pH were early embryonic development and newly-hatched alevins.
(19) Alevin survival by family ranged from 0 to 100%, with a mean value of 35.2%.
(20) Inter- and intra-stock genetic variation for alevin survival and time to death was investigated at Chehalis Hatchery in factorial crosses among chinook salmon from the Harrison and Capilano rivers.
Fish
Definition:
(n.) A counter, used in various games.
(pl. ) of Fish
(n.) A name loosely applied in popular usage to many animals of diverse characteristics, living in the water.
(n.) An oviparous, vertebrate animal usually having fins and a covering scales or plates. It breathes by means of gills, and lives almost entirely in the water. See Pisces.
(n.) The twelfth sign of the zodiac; Pisces.
(n.) The flesh of fish, used as food.
(n.) A purchase used to fish the anchor.
(n.) A piece of timber, somewhat in the form of a fish, used to strengthen a mast or yard.
(v. i.) To attempt to catch fish; to be employed in taking fish, by any means, as by angling or drawing a net.
(v. i.) To seek to obtain by artifice, or indirectly to seek to draw forth; as, to fish for compliments.
(v. t.) To catch; to draw out or up; as, to fish up an anchor.
(v. t.) To search by raking or sweeping.
(v. t.) To try with a fishing rod; to catch fish in; as, to fish a stream.
(v. t.) To strengthen (a beam, mast, etc.), or unite end to end (two timbers, railroad rails, etc.) by bolting a plank, timber, or plate to the beam, mast, or timbers, lengthwise on one or both sides. See Fish joint, under Fish, n.
Example Sentences:
(1) Both the vitellogenesis and the GtH cell activity are restored in the fish exposed to short photoperiod if it is followed by a long photoperiod.
(2) Roadford Lake with over 730 acres for watersports, fishing and birdwatching plus paths and bridleways.
(3) External exposures to a contaminated fishing net and fishing boat are considered pathways for fishermen.
(4) Two fully matured specimens were collected from the blood vessel of two fish, Theragra chalcogramma, which was bought at the Emun market of Seoul in May, 1985.
(5) The telencephalon of teleost fish shows high affinity uptake for D-[3H]aspartate, intermediate levels of GABAergic markers and low levels of cholinergic enzymes.
(6) The authors present the first results on the utilization of fish infusion (IFP) as a basic medium for the cultivation of bacteria.
(7) In telecost fishes, the corpuscles of Stannius contain Bowie-stainable granules and a renin-like pressor substance.
(8) Fish were trained monocularly via the compressed or the normal visual field using an aversive classical conditioning model.
(9) Alternatively, try the Hawaii Fish O nights, every Friday from 26 July until the end of August, featuring a one-hour paddleboard lesson, followed by a fish-and-chip supper looking out over the waves you've just battled (£16.75).
(10) Small and medium fish swim up when stressed, whereas larger fish swim down.
(11) Macron hit back on Twitter, saying her proposals to take France out of the EU would destroy France’s fishing industry.
(12) Careless Herbicidal aerial spray of a field for weed control and defoliation of cotton before machine picking, resulted in the contamination of an adjoining reservoir, killing large volume of fish.
(13) The function of these triple cones can not be deduced from the behavior patterns of these fishes.
(14) Both fatty acid composition and the degree of lipid peroxidation were measured in this study in 23 OTC fish oil preparations.
(15) The possibility of mammalian mitochondria functioning in fish embryos has been studied.
(16) Instead, they say, we should only eat plenty of lean meat and fish, with fruit and raw vegetables on the side.
(17) The nerve endings in the heart of fishes were studied using silver impregnation techniques.
(18) As for fish attractiveness, motion, freshness, size, color and species were found as important parameters in the food-preference mechanism.
(19) Interest in the antithrombotic potential of diets enriched with fish oil-derived polyunsaturated fatty acids (omega-3 PUFAs) prompted us to examine how these fatty acids, when taken preoperatively, affect hemostasis, plasma lipid levels, and production of prostacyclin (PGI2) by vascular tissues in atherosclerotic patients undergoing coronary artery bypass graft surgery.
(20) The olfactory organs of fishes are diversely developed.