نتایج جستجو برای: fish parasites gandoman lagoon chaharmahal
تعداد نتایج: 146559 فیلتر نتایج به سال:
Population dynamics indices of parasites infected on cultured ornamental fishes according to the climatic changes in kurunagala district,Sri Lanka were estimated.Sample of gold fishes and koi carps which were harvested from mud ponds in ornamental fish breeding and traning center was examined for ecto parasites. Four population indices were calculated for each abundant parasite species and dive...
in less than 150 words) Negombo Lagoon is one of the most productive and sensitive ecosystems in Sri Lanka. The main fresh water input comes to this lagoon from the rivers Dandugam Oya and Ja-ela. The Negombo Lagoon and its coastal environment have had a long association with the fishery industry. The salinity of Negombo Lagoon is strongly related to the monsoon rains and varies from almost zer...
BACKGROUND Farwa is an Island in Libya receives petrochemical wastes generated from General Company of Chemical Industries (GCCI) since more than 40 years. AIM The present work aimed to determine the concentrations of mercury (Hg(+2)) in fish, marine plants and sediment collected from Farwa lagoon to evaluate effect of industrial wastewater from GCCI on the marine environment. METHODS Hundr...
background: fish are constantly exposed to various pathogens and parasites in particular. gyrodactylus from platyhelminthes is an important monogenean ectoparasite that can cause disease and economical losses to cultured, wild, salt and fresh water and ornamental fish. gyrodactylus appears to be one of the most prevalent parasites of ornamental fish especially in cyprinids. objectives: the pres...
The North American freshwater sunfish, Lepomis gibbosus (Centrarchidae), was found in a pond outside Oslo, Norway in October 2005. The large number of fish (>100) in the pond suggests successful reproduction. Two monogenean parasites, nonnative to Norway, were found on the gill filaments of the fish. The origin of the fish and associated parasites is not known.
Water quality of the Jansen Lagoon (São Luís, Maranhão State, Brazil) was assessed through histological biomarkers and microbiological parameters. To this end, 29 fish specimens (11 Centropomus undecimalis and 18 Sardinella sp) and eight water samples were collected during the rainy and dry periods of 2013. The lagoon water showed thermotolerant coliform indices above the limit set forth in CON...
The Boi Cerbus lagoon, facing a mining and industrial site in Sardinia (Italy), is an important fishing area for the local population. Previous studies showed high concentrations of total arsenic (Astot) in fish, molluscs and crustaceans sampled in the lagoon, and a possible exceeding of the provisional tolerable weekly intake set by the Joint FAO/WHO Expert Committee on Food Additives by some ...
Fewer than 200 fish species are found in freshwater habitats in Australia, of which 144 are confined exclusively to freshwater. At least 22 species of exotic freshwater fish have been introduced into Australia, and 19 of these have established selfsustaining populations. However, the parasite fauna of both native and exotic freshwater fishes in Australia is poorly known. This is particularly th...
Ichthyophthirius multifilii (Ich) is likely to cause more damage to freshwater aquarium fish than other eukaryotic pathogens. Due to the reported side effects and environmental effects, scientists are trying to replace chemicals with plant extracts to treat this parasite. In this study, the effect of ethanolic extract of green tea (Camellia sinensis) in the treatment of fish infected with the...
A detailed microbiological and parasitological survey of salmonids and indigenous fish in the upper reaches of selected river systems in Natal was undertaken. Fish were collected from the rivers by electro-fishing, from dams by gill netting and from hatcheries along the rivers. A total of 678 fish from 26 different sites along 8 river systems were collected. No parasites could be detected on fi...
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