Effect of implanting a passive integrated transponder tag in juvenile chub, Squalius cephalus (L.), on their condition, growth and survival
نویسندگان
چکیده
منابع مشابه
Gonadogenesis in chub Squalius (Leuciscus) cephalus (L. 1758).
The chub is an opportunistic, rheophilic cyprinid species and popular gamefish distributed throughout almost all of Europe, South Caucasus and part of Anatolia. It is most abundant in small rivers and large streams. The process of anatomical and cytological differentiation was analyzed in chub gonads. Material used in the study was derived from artificial spawning of adult individuals caught in...
متن کاملEffect of urban wastewater on age and growth of Chub Squalius cephalus (Linnaeus, 1758) in the Gheshlagh River, Sanandaj
In order to determine the age and growth of Chub in the Gheshlagh River of Sanandaj, two areas were selected; one in upstream of the river (Naysar; high water quality) and the other in downstream (Soaryan; impaired water quality). A total of 280 fish specimen were caught during four seasons. The overall male to female ratio was 1:1.86 in Naysar and 1:0.61 in Soaryan. Both ratios were significan...
متن کاملthe effect of efl teachers beliefs about teaching reading strategies on their students success and motivation in reading comprehension
previous studies regarding teachers’ beliefs have revealed that teachers’ beliefs have influence on their classroom practices. the current study aimed to investigate the effect of teachers’ beliefs about teaching reading strategies on students’ motivation and success in reading comprehension in the context of english teaching as a foreign language in high schools of mazandaran, iran. data were ...
Karyotype analysis of chub, Squalius cephalus (Linnaeus, 1758) (Teleostei: Cyprinidae) from Karasu River, Erzurum, Turkey
The karyotypic characteristics of chub, Squalius cephalus have been investigated by examining metaphase chromosomes spreads obtained from gill and kidney tissues. The fish used in the study were caught with fishing nets from Dumlu Stream, one of the main tributaries of the Karasu River. The live fish were transported to the laboratory, kept in a well aerated aquarium before analysis and then...
متن کاملEffect of different diets on growth and survival of polychaete Perinereis nuntia in laboratory culture condition
With regard to the importance of polychaete Perinereis nuntia in diet of shrimp broodstock, achieving its breeding and culture bio technique is an important goal in shrimp industry. For this purpose, usage of diets inducing the highest growth and the lowest mortality is of importance. The effect of four different dietary treatments including commercial shrimp diet- Biomar, Lansy shrimp diet con...
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ژورنال
عنوان ژورنال: EUROPEAN JOURNAL OF ENVIRONMENTAL SCIENCES
سال: 2019
ISSN: 2336-1964,1805-0174
DOI: 10.14712/23361964.2019.13