نتایج جستجو برای: kiwzestan fishes

تعداد نتایج: 19147  

Journal: :Environmental science & technology 2001
K S Kumar K Kannan O N Paramasivan V P Shanmuga Sundaram J Nakanishi S Masunaga

Concentrations of polychlorinated dibenzo-p-dioxins (PCDDs), dibenzofurans (PCDFs), and non- and mono-ortho-substituted polychlorinated biphenyls (dioxin-like PCBs) were measured in tissues of humans, fishes, chicken, lamb, goat, predatory birds, and Ganges River dolphins collected from various locations in India. PCDDs/DFs were found in most of the samples analyzed with the liver of spotted ow...

Journal: :Philosophical transactions of the Royal Society of London. Series B, Biological sciences 2000
A N Popper

The past decade has seen a wealth of new data on the auditory capabilities and mechanisms of fishes. We now have a significantly better appreciation of the structure and function of the auditory system in fishes with regard to their peripheral and central anatomy, physiology, behaviour, sound source localization and hearing capabilities. This paper deals with two of the newest of these findings...

Journal: :Nature 1930

Journal: :Nature 1968

Journal: :iranian journal of ichthyology 0
alireza radkhah department of fisheries, faculty of natural resources, university of tehran, karaj, iran. soheil eagderi department of fisheries, faculty of natural resources, university of tehran, karaj, iran.

this research was conducted to study the length-weight and length-length relationships and condition factor of six cyprinid fish species viz. alburnus atropatena , barbus lacerta , capoeta capoeta , carrasius gibelio , romanogobio macropterus and pseudorasbora parva from zarrineh river (urmia lake basin, iran). a total of 188 specimens ranging from 2.9 to 21.4cm in total length and 0.22 to 176g...

Journal: :iranian journal of parasitology 0
rahul gupta amity institute of biotechnology, amity university uttar pradesh, lucknow-226028, india. ramakant maurya department of zoology, university of lucknow, lucknow-226007, uttar pradesh, india. anand murari saxena department of zoology, university of lucknow, lucknow-226007, uttar pradesh, india.

background: acanthocephalans are fish parasites of worldwide distribu-tion, penetrate their thorny proboscis into the intestinal wall of host and absorb nutrients. no diagnostic tool is available except postmortem inves-tigations and identification by parasitologists. the aim of present study was to explore and assign taxonomical status to pallisentis species prevalent in food fishes of river g...

Journal: :تحقیقات دامپزشکی 0
کاظم عبدی دانشکده دامپزشکی دانشگاه تهران بابا مخیر دانشکده دامپزشکی دانشگاه تهران بهیار جلالی واحد علوم و تحقیقات دانشگاه آزاد ایرج موبدی دانشکده بهداشت دانشگاه تهران محمد رضا احمدی دانشکده دامپزشکی دانشگاه تهران سعید میرزرگر دانشکده دامپزشکی دانشگاه تهران بهنام مشکی

monogenetic termatodes are exoparasites of iranian freshwater fishes with high pervalency in both wild and cultured fishes which cause economoic loss each year. the aim of the present study was to detect parasites of gills in yellow- fin seabreams of persian gulf. this study was conducted for one year (between autumn 2007 to autumn 2008) on both wild and cultured yellow-fin seabreams of persian...

Journal: :The Journal of experimental biology 1950
J C MOTT

Comparatively little work appears to have been done on the circulation in the intact living fish, particularly in the bony fish. This paper describes the circulation in the common eel using angiographic methods. This species is convenient as it can be fairly easily obtained in the autumn and winter, is tolerant of laboratory conditions and can survive for some time out of water. As no general d...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2009
Rosamond L Naylor Ronald W Hardy Dominique P Bureau Alice Chiu Matthew Elliott Anthony P Farrell Ian Forster Delbert M Gatlin Rebecca J Goldburg Katheline Hua Peter D Nichols

Aquaculture's pressure on forage fisheries remains hotly contested. This article reviews trends in fishmeal and fish oil use in industrial aquafeeds, showing reduced inclusion rates but greater total use associated with increased aquaculture production and demand for fish high in long-chain omega-3 oils. The ratio of wild fisheries inputs to farmed fish output has fallen to 0.63 for the aquacul...

Journal: :Kagaku To Seibutsu 1985

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