نتایج جستجو برای: 281 fish samples were caught by gill
تعداد نتایج: 8300435 فیلتر نتایج به سال:
Fish consumption has been classified as one of the primary pathways of exposure to polychlorinated dibenzo-p-dioxins, dibenzofurans (PCDD/Fs) and biphenyls (PCBs). In this study, we evaluated tissue levels of the 17 laterally substituted PCDD/Fs, 12 dioxin-like PCBs, and 97 non-dioxin-like PCBs in a number of wild-caught and farm-raised catfish collected throughout southern Mississippi. Total l...
The concentrations of Cd, Pb, Ni and Hg were determined in gill, liver and muscle of Barbus xanthopterus in down streams of Karoon and Dez Rivers during summer 2009. Heavy metal concentrations varied significantly, depending on the types of the tissue in fish species. The levels of heavy metals such as Cd, Pb, Ni and Hg in the Barbus xanthopterus of Karoon River were higher than in Barbus xant...
This study was carried out to ascertain the influence of fishing gear used by fisherfolks on yield fish in River Benue, Nigeria. The conducted three villages that are also landing sites. They within Adamawa State axis with Benue passing through them. selected Boranji (Site 1), Damare 2) and Hayin gada 3). bi-monthly for months from month July September 2021. In conduct this study, both primary ...
Concentration of heavy and toxic metals Cu, Zn, Cd, Pb and Hg were determined in liver and muscles of Rutilus frisii kutum and their relationships with growth parameters (length, age, condition factor) and hepatosomatic index were examined. Thirty-six fish samples were collected from February through March 2009 caught by beach seine in the southwest parts of the Caspian Sea. Atomic ab...
Abstract This study evaluated the use of gill parasitic monogenoideans from Sciades herzbergii (Siluriformes: Ariidae) as bioindicators environmental quality in Amazonian estuarine ecosystems. Fish were caught tidal channels an impacted area - IA, near port São Luís and a reference RA, Caeté estuary, Bragança. The influence capture site seasonality on parasite abundance, variables biometric dat...
Levels of contaminants in fish are of particular interest because of the potential risk to humans consuming them. This paper examines the levels of cadmium, lead, zinc and copper in liver and muscle tissue of Esox lucius and in sediments from the Anzali international wetland in Iran. The wetland is a nursery and feeding habitat for fish species both from the lagoon and the Caspian Sea, which ar...
Atatürk Dam Lake, which was established on the Euphrates River for agricultural irrigation and electricity production, is largest dam lake in Turkey. Many fish species, are primary food source humans, live lake. Therefore, possible pollution this will adversely affect not only but also human health. For purpose, study, lead, cadmium, chromium, iron, zinc, copper levels were measured liver, gill...
The dioxin and dioxin-like compounds are regarded as one of the most toxic group of environmental contaminants. Food for the commercial market is regularly monitored for their dioxin levels and the concentration allowed in food is strictly regulated. Less is known about locally caught fish from recreational fishing, which is often brought home for consumption. This can be fish caught from nearb...
Six eelpout species (Zoarcidae) are currently known from the Ross Sea and adjacent areas: Dieidolycus leptodermatus Anderson, 1988; Lycodichthys dearborni (DeWitt, 1962); Ophthalmolycus bothriocephalus (Pappenheim, 1912); Pachycara brachycephalum (Pappenheim, 1912); Seleniolycus pectoralis Møller & Stewart, 2006 and Seleniolycus robertsi Møller & Stewart, 2006 (Anderson, 1990, 2006; Møller & St...
Salinity adaptation and sea water tolerance are vital, challenging phenomena in the life history of anadromous species such as kuttum fish. Evaluation on feed deprivation in gill chloride cell development of kuttum fish is the aim of this study. Kuttum juveniles that weighed an average weight of 0.5 grams were divided into two groups. One group (control) was fed ad libitum during the experiment...
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