نتایج جستجو برای: silver carp
تعداد نتایج: 51941 فیلتر نتایج به سال:
—The silver carp Hypophthalmichthys molitrix has spread throughout the Mississippi River drainage. During 2003, we determined its population status and potential impact in the middle Mississippi River (MMR), the conduit between the lower Mississippi River and the upper Mississippi, Missouri, and Illinois rivers. We quantified growth, age structure, fecundity, and diets of silver carp sampled wi...
At the present study, the distribution of Cd, Hg and Pb in water and their accumulation in fish species (silver carp, rainbow trout and shrimp) in three different farms. Totally 63 samples of three species and the water of their ponds were obtained during summer 2008 from Gilan, Mazandaran and ChabaharIran. The concentrations of three heavy metals in fish and shrimp flesh were measured by flame...
Numerous studies throughout North America allege deleterious associations among invasive Asian Carp and native fishes; however, no empirical evidence on a system-wide scale exists. We used Mississippi River Basin fish community data collected by the Long Term Resource Monitoring program and the Missouri Department of Conservation to evaluate possible interaction between Asian Carp and native fi...
Some issues in risk assessment reports on grass carp and silver carp.
investigation on the food and feeding habits of silver carp in gobindsgar reservoir indicated that the diet of silver carp was dominated by cyclotella spp. (diatom) followed by chlorophyceae, cyanophyceae, crustacea, dianophyceae and rotifera. the size range of cyclotella spp. varied between 5-25 µm indicating that silver carp is capable to collect the food particles smaller than distance betwe...
Two species of common edible fish, common carp (Cyprinus carpio) and silver carp (Hypophthalmichthys molitrix), were exposed to a Microcystis spp.-dominated natural cyanobacterial water bloom for two months (concentrations of cyanobacterial toxin microcystin, 182-539 microg/g biomass dry wt). Toxins accumulated up to 1.4 to 29 ng/g fresh weight and 3.3 to 19 ng/g in the muscle of silver carp an...
The purpose of the study was to determine the microbiological status of 161 samples cooled and frozen fish products collected from retail markets in the Republic of Bulgaria. The highest total viable counts (TVCs) in cooled fish products were established for silver carp (7.30 log cfu/g), Black sea roach (7.28 log cfu/g) and trout (7.11 log cfu/g), followed by common carp (6.81 log cfu/g), vacuu...
some biochemical characteristics of common carp (cyprinus carpio) and silver carp (hypophtalmichthys moltrix) surimi prepared by a conventional washing method and protein isolated using alkaline-acid-aided processes were investigated. solubility of protein in silver carp and common carp were found to be highest by using the conventional washing method. decreases in myoglobin and lipid contents ...
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...
Aim of this study was to evaluate the effects of diazinon toxicity (LC50) on silver carp and roach fry for measuring resistnce of these fishes. Roach with an average weight of 7 ± 1 g and silver carp 30 ± 1 g were studied to measuring lethal concentration LC50 at 96 hours. Experiment was used with a completely randomized design in 9 treatments and 3 replications for both silver carp and roach. ...
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