Results 181 to 190 of about 7,920 (201)
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Liver and Breast Feather Mercury in Piscivorous Birds of the Caspian Sea: Monitoring Changes
Bulletin of Environmental Contamination and Toxicology, 2011Mercury in the liver and breast feathers of the Common Cormorant, and in three species of Grebes from the southern coast of the Caspian Sea, were determined. The Common Cormorant had significantly more mercury in its tissues (liver: 8.5 ± 1.5; feather 8 ± 1 mg/kg dry weight) than Grebes (Great Crested Grebe: 3 ± 0.5, 8 ± 1.5; Black-necked Grebe: 3 ± 0 ...
F, Rajaei +4 more
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Ardea, 2018
This study aims to select piscivorous bird species to be used as indicators to monitor changes in fish diversity at the Banc d'Arguin, Mauritania. Such species should have a high diet diversity, low dietary overlap and data should be easy to collect. We compared the diets of five colony nesting bird species at the Banc d'Arguin: the Slender-billed Gull
Jan Veen, Hanneke Dallmeijer, Thor Veen
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This study aims to select piscivorous bird species to be used as indicators to monitor changes in fish diversity at the Banc d'Arguin, Mauritania. Such species should have a high diet diversity, low dietary overlap and data should be easy to collect. We compared the diets of five colony nesting bird species at the Banc d'Arguin: the Slender-billed Gull
Jan Veen, Hanneke Dallmeijer, Thor Veen
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Recovery of infectious pancreatic necrosis virus from the faeces of wild piscivorous birds
Aquaculture, 1992Abstract Faecal samples were collected from wild birds frequenting salmonid fish hatcheries to determine if birds excrete infectious pancreatic necrosis (IPN) virus in their faeces. Samples were collected from early June through early September. IPN virus was detected in faeces from herons, mallards, and other birds at titres similar to the titres ...
P.E. McAllister, W.J. Owens
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Killing of piscivorous birds at Scottish fin fish farms, 1984–1987
Biological Conservation, 1994Abstract In recent years there has been growing concern about the environmental consequences of the rapidly expanding Scottish fish farm industry. One such concern is the control of fish predators. A questionnaire survey (covering 78% of all Scottish fin fish farms) in 1985 showed that many farmers thought piscivorous birds were a problem and that ...
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THE ABUNDANCE AND FOOD CONSUMPTION OF PISCIVOROUS BIRDS ON LAKE KARIBA, ZIMBABWE-ZAMBIA
Ostrich, 1996Summary Hustler, K. & Marshall, B.E. 1996. The abundance and food consumption of piscivorous birds on Lake Kariba, Zimbabwe-Zambia. Ostrich 67:23-32. About 40 species of piscivorous birds have been recorded on Lake Kariba (Zimbabwe-Zambia) but only 26 were observed during this study, carried out in 1986–87.
K. Hustler, B. E. Marshall
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Canadian Journal of Zoology, 1988
Experimental infections of laboratory-raised birds supported field data indicating that Common Mergansers (Mergus merganser L.) (prevalence = 20.8%, mean intensity = 3.2) and Red-breasted Mergansers (Mergus senator L.) (prevalence = 4.0%, mean intensity = 1) are important hosts of Eustrongylides tubifex in Ontario.
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Experimental infections of laboratory-raised birds supported field data indicating that Common Mergansers (Mergus merganser L.) (prevalence = 20.8%, mean intensity = 3.2) and Red-breasted Mergansers (Mergus senator L.) (prevalence = 4.0%, mean intensity = 1) are important hosts of Eustrongylides tubifex in Ontario.
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African journal of biomedical research
Birds exhibit distinct adaptations and food requirements.The remarkable migratory capacity exposes the birds to different habitats with a variety of food items and thus possess a complex gut microbial community. The Little cormorant,Microcarbo niger, an aquatic piscivorous bird, mainly depends on fresh water and inshore habitat for foraging.
Raghunathan PP +6 more
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Birds exhibit distinct adaptations and food requirements.The remarkable migratory capacity exposes the birds to different habitats with a variety of food items and thus possess a complex gut microbial community. The Little cormorant,Microcarbo niger, an aquatic piscivorous bird, mainly depends on fresh water and inshore habitat for foraging.
Raghunathan PP +6 more
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Canadian Journal of Zoology, 1988
The genus Eustrongylides Jägerskiöld, 1909 (Nematoda: Dioctophymatoidea) is revised based on examination of adult E. tubifex from experimentally infected Common Mergansers (Mergus merganser) and specimens of Eustrongylides spp. from various museums. Only three species are considered distinguishable: E.
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The genus Eustrongylides Jägerskiöld, 1909 (Nematoda: Dioctophymatoidea) is revised based on examination of adult E. tubifex from experimentally infected Common Mergansers (Mergus merganser) and specimens of Eustrongylides spp. from various museums. Only three species are considered distinguishable: E.
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Study of Piscivorous bird in and around galorgi lake, Akkalkot Tahsil, District Solapur
Abstract: The study area is 55 km away from solapur district and near about 15 km away from Akkalkot tahsil. Galorgi Lake is one of the largest artificial lake. It is provide the nutrient rich flora and fauna which attracts the birds.Salgar, Satish N. +2 more
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Experimental approach on the impact of piscivorous birds on a littoral extensive fish-farming
1993Une étude quantitative de la prédation par deux espèces d'oiseaux piscivores a été réalisée dans un bassin situé dans un ensemble de réservoirs à poissons. Deux enclos, l'un protégé par des filets et des fils, l'autre accessible aux oiseaux, ont été étudiés.
Génard, Michel +2 more
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