(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.
Plevin
Definition:
(n.) A warrant or assurance.
Example Sentences:
(1) The case involved Susan Plevin, who found that 72% of the £5,780 premium she paid was commission for the lender and the broker that sold her the loan, with the rest going to the PPI provider, Norwich Union.
(2) A court ruling in the Plevin v Paragon Personal Finance case also looks likely to add to the PPI bill.