نتایج جستجو برای: کپور سرگنده hypophthalmichthys nobilis
تعداد نتایج: 3054 فیلتر نتایج به سال:
In the Mississippi River Basin of North America, invasive bigheaded carp (silver carp Hypophthalmichthys molitrix and bighead carp H. nobilis, also referred to as Asian carp) have spread rapidly over the past several decades. In the Illinois River, an important tributary of the Upper Mississippi River, reproduction appears to be sporadic and frequently unsuccessful, yet bigheaded carp densities...
Bighead carp (Hypophthalmichthys nobilis) have been introduced throughout Europe, mostly unintentionally, and little attention has been given to their potential for natural reproduction. We investigated the presence of young-of-the-year bighead carp in an irrigation canal network of Northern Italy and the environmental conditions associated with spawning in 2011-2015. The adult bighead carp pop...
fillet yield determination and nutritional labeling of bighead (hypophthalmichthys nobilis) products
estimation of fillet biochemical composition and processing yield is primary needs for fish processing. present study was aimed to investigate for determining fillet biochemical composition and processing yield of bighead (hypophthalmichthys nobilis) for nutritional labeling and economical estimation of its products by regression equations. for this purpose 55 specimen of bighead were applied i...
more than 32 alien (exotic) fish species belonging to 10 orders and 12 families (cyprinidae, gobiidae, salmonidae, anguilidae, mugilidae, centrarchidae, heteropneustidae, gasterosteidae, cichlidae, poecilidae, adrianichthyidae and pleuronectidae) were reported from iran of which 25 species are confirmed by specimens. some of the alien fishes (e.g., cyprinus carpio , carassius auratus , pesudora...
هدف از این تحقیق تعیین فلور پلانکتونی استخرهای پرورش ماهیان گرمابی بعد از کوددهی و تعیین میزان رشد ماهی کپور نقرهای در ارتباط با ترکیب فیتوپلانکتونی بود. برای این منظور 4 استخر پرورش ماهی گرمابی که وسعت هر کدام حدود 12 هکتار بود، انتخاب و بعد از آمادهسازی و آبگیری، تعداد 2400 قطعه بچهماهی کپورنقرهای به ازای هر هکتار با وزن 120 گرم در آن ها رهاسازی شد. میزان کود حیوانی (کود گاوی) مورد استفا...
The prevention of non-indigenous aquatic invasive species spreading into new areas is a goal of many resource managers. New techniques have been developed to survey for species that are difficult to capture with conventional gears that involve the detection of their DNA in water samples (eDNA). This technique is currently used to track the invasion of bigheaded carps (silver carp and bighead ca...
An environment intensively studied from many perspectives, through the efforts of an interdisciplinary team of biologists, ecologists, geneticists, chemists, pedologists, etc. is Moara Domnească agroecosystem. Located in the North-East of Bucharest, the Moara Domnească Lake is used for irrigation of the neighbouring agricultural areas and also for pisciculture (Stavrescu-Bedivan et al., 2011). ...
Genetic variation and inheritance of randomly amplified polymorphic DNA (RAPD) markers in female grass carp (Ctenopharyngodon idella) and male bighead carp (Hypophthalmichthys nobilis) and their F1 offspring hybrid have been studied. For this purpose, genomic DNA was extracted from muscle tissue according to phenol-chloroform method, and six decamer primers were used for amplifying polymorphic ...
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