RASKOVIC, B., V. POLEKSIC, I. ZIVIC and M. SPASIC, 2010.Histology of carp (Cyprinus carpio L.) gills and pond water quality in semiintensive production. Bulg. J. Agric. Sci., 16: 253-262 Gills of carp from ponds of the “Vrsacki ritovi” fish farm were studied, and the results discussed with reference to the results of physical and chemical properties of pond water. Subepithelial edema and gill h...

The pond bottom soil and the accumulated sediments are integral parts of ponds. Concentrations of nutrients, organic matter and microorganism density in the pond bottom are several orders of magnitude greater than in the water. The accumulation of organic sediments may limit pond intensification. The intensive organic matter degradation at the pond bottom and high sediment oxygen demand exceeds...

Population estimates were made on ~ve .farm ponds in central Iowa during 1965. Age and growth determmat10ns were ma.de from scales of 638 bluegills collected from these ponds. Bluegills standing crops averaged 248 pounds per acre, ranging from 201 to 3 21 pounds per acre. Growth rates of bluegms from the balan~ed ponds were average when compared with growth rates of bluegills from other Iowa la...

The study was undertaken to determine bacterial contamination of warm-water fish ponds and silver carps harvested from those ponds in Guilan province, Iran. In this respect, water samples were taken from 7 ponds and investigated by testing total bacteria, coliforms, and Escherichia coli. In addition, skin swab samples of silver carps caught from each pond were studied for enumeration of the sam...

The results of research on the effect feed with different feeding values and organoleptic properties productivity two-year-old carp are presented. Within same pond, joint use demand feeders (feeds tastes) makes it possible for fish to choose one them in response well-developed chemoreception. Diets calories affect quality resulting production at consumption. combination two types within pond pr...

Soon after the Great East Japan Earthquake and the subsequent accident at the Fukushima Daiichi nuclear power plant, we studied the reproductive biology of freshwater teleost bluegill (Lepomis macrochirus) in a pond in the city of Iwaki, Fukushima Prefecture, about 50 km south of the nuclear power plant. The breeding period of the bluegill was abbreviated and the frequency of spawning decreased...

Department of Natural Resources. The form and content of this report and the interpretations of the data are the responsibility of the University of Illinois and the Illinois Natural History Survey and not the Illinois Department of Natural Resources. References Tables Figures Evaluation of muskellunge and tiger muskellunge stocking program. Executive Summary Size specific survival of muskellun...

This study evaluated the ectoparasite distribution on the gill archs of pond-reared pacu (Piaractus mesopotamicus Holmberg, 1887), hybrid patinga (P. mesopotamicus female x P. brachypomus (Cuvier, 1817) male), hybrid tambacu (Colossoma macropomum (Cuvier, 1816) female x P. mesopotamicus male) and hybrid surubim (Pseudoplatystoma reticulatum female x P. corruscans Spix & Agassiz, 1829 male). A t...

High antibiotic resistance is seen in bacterial infections caused by members of the genus Aeromonas [1]. They are amid the most common diseases of fish especially those in pond systems containing recirculation [2]. The emergence of resistance to antimicrobial agents in bacterial pathogens is a global public health problem [3]. A. hydrophila is a microorganism widely distributed in nature: in wa...

Bream pond aquaculture plays a very important role in China's aquaculture industry and is the main source of aquatic products. To regulate and control pond water quality and sediment, a movable solar pond aquaculture water quality regulation machine (SMWM) was designed and used. This machine is solar-powered and moves on water, and its primary components are a solar power supply device, a sedim...