On the Scales of Ayu, Plecoglossus altivelis Temminck & Schlegel
نویسندگان
چکیده
منابع مشابه
On the Food of the Salmonoid Fish , Ayu (Plecoglossus altivclis Temminck & Schlegel). II
The present paper, as we have mentioned in the previous report, embodies our more extensive studies concerning the food of the Ayu and also its food-habit as to whether it changes or not according to the ages¤ locality, or season. In the young stage, living in the sea or lake, Ayu feeds entirely on zooplankton (Copepoda, Ostracoda, Phyllopoda etc.); and also on the similar matters until it has ...
متن کاملStudies on Morphology and Cytochemistry in Blood Cells of Ayu Plecoglossus altivelis altivelis
Peripheral blood cells from ayu, Plecoglossus altivelis altivelis, were separated using a density gradient. Blood cells were then smeared using Shandon Cytospin and subjected to cytochemical staining. Blood cells were categorized based on morphological and cytochemical characteristics, and the density fractionation range and nucleus area/cell area ratio were observed. Lymphocytes are distinguis...
متن کاملCloning and characterization of metallothionein gene in ayu Plecoglossus altivelis.
Metallothionein (MT) has been used widely as a potential molecular marker to detect the deleterious effects of heavy metals in aquatic ecosystem. Here we exposed ayu, Plecoglossus altivelis, to zinc (Zn) and tested the distribution as well as the induction of MT in various tissues such as liver, kidney, intestine and stomach. MT induction was significant in liver tissue, followed by kidney and ...
متن کاملProlactin and upstream migration of the amphidromous teleost, ayu Plecoglossus altivelis.
Changes in mRNA levels of prolactin (PRL) during the upstream migration were examined in fry of the amphidromous fish, ayu Plecoglossus altivelis. Quantification of mRNA has been done with real-time PCR and expressed as whole body or pituitary contents depending the body size of fry. PRL mRNA levels of ayu caught in seawater of the coastal area remained low during early spring. Prior to the sta...
متن کاملPlasmid profiling of Flavobacterium psychrophilum isolates from ayu (Plecoglossus altivelis altivelis) and other fish species in Japan
In order to evaluate the genetic variability of the causative agent of cold water disease (CWD), plasmid profiling was used to characterize Flavobacterium (F.) psychrophilum isolates (n = 169). Size analysis of plasmids in F. psychrophilum isolates (n = 128) from several fish species demonstrated that six kinds of plasmids were harbored, and ayu isolates had different profiles compared to other...
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ژورنال
عنوان ژورنال: Japanese Journal of Limnology (Rikusuigaku Zasshi)
سال: 1936
ISSN: 0021-5104,1882-4897
DOI: 10.3739/rikusui.6.56