Cytological studies in the smelt (Osmerus eperlanus L.)
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چکیده
منابع مشابه
Quality and quantity of smelt (Osmerus eperlanus L.) sperm in relation to time after hormonal stimulation.
The effect of Ovaprim (salmon GnRH analogue and a dopamine antagonist) treatment on the quantity and quality of smelt (Osmerus eperlanus L.) sperm was studied in relation to time after hormonal stimulation. Sperm was obtained at 0, 24, 48 and 72 h after treatment (n=13/each time point). Computer Assisted Sperm Analysis (CASA) was used to evaluate sperm motility parameters and histological analy...
متن کاملOsmotic pressure-adaptive responses in the eye tissues of rainbow smelt (Osmerus mordax)
PURPOSE The rainbow smelt (Osmerus mordax), is a teleost fish, which avoids freezing by becoming virtually isosmotic with seawater. The effects that such massive changes in osmolarity have on both its visual system and its highly evolved and specialized circulation are not known. New knowledge about the osmotic adaptation of the rainbow smelt eye is highly relevant to the adaptation and surviva...
متن کاملRelationship between food availability, glycerol and glycogen levels in low-temperature challenged rainbow smelt Osmerus mordax.
Rainbow smelt Osmerus modax accumulate glycerol in winter that serves as an antifreeze. Fish were held at 8 degrees C, or subjected to a decrease in water temperature to -1 degrees C over a 19 day period, and subsequently maintained at -1 degrees C from 15 January to 11 May 2004. Starved fish did not survive the challenge of temperature decrease, with death ensuing above the typical freeze poin...
متن کاملEvidence of rainbow smelt (Osmerus mordax) spawning in Mohican Canyon, a tributary of Otsego Lake
Groups of Rainbow smelt were observed spawning in the first riffle in Mohican Canyon upstream of Otsego Lake. Adult smelt were collected with a shore seine on 22 April 2001. Sampled fish (n=17) had an average length of 176.8 mm total length (TL) and weight of 34.2 g. Despite these observations, no larval, juvenile or adult smelt were collected in any trawling or gill netting activities in Otseg...
متن کاملLow temperature directly activates the initial glycerol antifreeze response in isolated rainbow smelt (Osmerus mordax) liver cells.
Rainbow smelt (Osmerus mordax) accumulate high levels of glycerol in winter that serve as an antifreeze. Liver glycogen is a source of glycerol during the early stages of glycerol accumulation, whereas dietary glucose and amino acids are essential to maintain rates of glycerol synthesis. We presently report rates of glycerol and glucose production by isolated hepatocytes. Cells from fish held a...
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ژورنال
عنوان ژورنال: Hereditas
سال: 2009
ISSN: 0018-0661
DOI: 10.1111/j.1601-5223.1971.tb02381.x