(1) In general a correlation exists between fish that lack or have small M-cells and a demersal habitat.
(2) The major water-soluble arsenic compound was isolated from the muscle of shortnose dogfish Squalus brevirostris and of starspotted shark Mustelus manazo, both of which are demersal sharks.
(3) Ciguateric fishes (mainly demersal reef fishes) cause a range of distressing and often debilitating gastrointestinal neurological and cardiovascular disturbances.
(4) It is suggested to differ: 1) common secondary transformation, when secondary flattening (for example, in birds) or secondary specialization (for example, in fish demersal roe) embraces the whole epithelium of the follicle.
(5) Surveys of demersal fishes and macrofaunal invertebrates in the North Atlantic indicate 1) there is little evidence of coherence and continuity of faunal zones around the ocean basin and 2) that the community concept should be abandoned because faunal assemblages only persist on a local scale.
(6) In contrast, white muscle from demersal species was unstained for the same enzymes and was devoid of mitochondria.
(7) Yolk proteins of prematuration occytes and postmaturation eggs were compared by SDS gel electrophoresis in several teleosts, including freshwater species that produce demersal eggs, estuarine and marine species with demersal eggs, and marine species with pelagic eggs.
(8) Analysis of gut contents indicates that during the day piper feed primarily on copepods, and terrestrial insects trapped on the water surface; after dark the demersal zooplankton which enter the water column form the major dietary component.
(9) Histochemical profiles and capillarisation data of the red and white muscle were compared to those of less active demersal species.
(10) Contrasting environmental conditions during embryogenesis of these two species may be reflected by the thin membrane and simple lamellar structure in the pelagic egg of the starry flounder, and the thick membrane and complex lamellar structure in the demersal egg of the pink salmon.
(11) When released into seawater, spermatozeugmata retain their structural integrity for varying periods (up to 24 hours) and become demersally distributed in still water.
(12) When gut samples were examined, the incidence was highest in demersal fish (cod and flatfish) as compared with pelagic fish (herring).
Immerse
Definition:
(a.) Immersed; buried; hid; sunk.
(v. t.) To plunge into anything that surrounds or covers, especially into a fluid; to dip; to sink; to bury; to immerge.
(v. t.) To baptize by immersion.
(v. t.) To engage deeply; to engross the attention of; to involve; to overhelm.
Example Sentences:
(1) The efficacy of the process is dependent on immersion medium, while the degree of surrounding tissue damage is dependent on energy dose.
(2) Water immersion (WI) to the neck induces prompt increases in central blood volume, central venous pressure, and atrial distension.
(3) In contrast, in paraffin as well as in frozen sections of chick oviduct, fixed by immersion or in vapor, PR was exclusively nuclear, including in the absence of progesterone, and the intensity of immunostaining was not modified by progesterone treatment.
(4) Clinical use of this instrument is no more difficult than conventional immersion ultrasonography.
(5) The bond strength of the resins did not change with the time spent immersed in water up to 6 months, but decreased with any further increase in time.
(6) Perfused or immersion-fixed epithalamic tissues, sectioned, and mounted on glass slides were processed through the avidin-biotin immunofluorescence method.
(7) The heat uptake that resulted from immersing the hand and wrist into a water-filled calorimeter maintained at temperatures between 37-40 degrees C was measured under standard conditions in a group of eight subjects of either sex.
(8) Immersion-fixed tissue was found to be inferior to perfusion-fixed tissue for immunocytochemical staining of this serum protein.
(9) In the first few days of immersion high concentrations of dissolved metal ions were observed.
(10) An improved technique to record high-equality electrocardiographic (ECG) signals on the surface, from immersed humans during rest and exercise, in both normothermic and hypothermic exposures, has been devised.
(11) The inactivation of exogenous and neural norepinephrine (NE) by helical strips of rat tail artery was studied with a combination of the techniques of transmural stimulation and oil immersion.
(12) The immersion did not influence the state of ventilation and gas exchange at rest, diminished significantly the functional capabilities of external respiration.
(13) We measured closing volume (CV), expiratory reserve volume (ERV) regional distribution of lung volume (Vr) and perfusion in 7 normal subjects in air and during immersion to the neck in water.
(14) Immersion of polymer membranes blended with the thrombin inhibitor in phosphate-buffered saline for 10 d resulted in the loss of nonthrombogenicity, while the polymer membranes grafted with the thrombin inhibitor derivative maintained the nonthrombogenicity over a long period.
(15) With few exceptions, there is no alteration in cellular morphology if the brain is refrigerated after death, and fixed by immersion within 3 hours.
(16) It was observed that during the cold immersion the linear regression coefficients between the heart rate and the Q-S2T in the supine position as well as between the heart rate and the LVET, Q-S2T and the PEP in the head-up position were greater than the regression coefficients used in the rate correction.
(17) In situations where excessive grooming is elicited by other peptides or by water immersion, TRH does not further activate the operating systems involved in the existing excessive grooming.
(18) During immersion the renal excretion of calcium and magnesium also grew, especially in the evening and at night.
(19) Steady-state responses obtained after the 3rd h of immersion in never-immersed (NI) penguins were compared with those of penguins acclimatized to seawater temperature (A).
(20) SEM and TEM examinations suggested that dentinal collagen exposed by the etching but not entangled and impregnated by poly (4-META-co-MMA) easily deteriorated by water during the longer immersion.