نتایج جستجو برای: oxynoemacheilus argyrogramma
تعداد نتایج: 104 فیلتر نتایج به سال:
this study provides new data on chromosomal characteristics and dna barcoding of three endemic loaches of iran: spiny southern loach cobitis linea (heckel, 1847), persian stream loach oxynoemacheilus persa (heckel, 1848) and tongiorgi stream loach oxynoemacheilus tongiorgii (nalbant & bianco, 1998). the chromosomes of these fishes were investigated by examining metaphase chromosome spreads ...
Lake Van is the largest saline soda lake in world and one of world’s few endorheic lakes greater than 3,000 km 2 surface area. Despite its huge size, no fish species have so far been known to permanently occur this due extreme environmental conditions. Here, we report discovery a population that inhabits some unique microbialites lake, at maximum depth 13 m about 500 offshore. We tested whether...
Information on density and abundance of globally threatened species such as tigers Panthera tigris is essential for effective conservation as well as to evaluate the success of conservation programmes. We monitored tigers in Parsa Widlife Reserve, Nepal, using camera traps, in , and . Once believed to be a sink for tigers from adjacent Chitwan National Park, Parsa now provides a ne...
Faeces provide relevant biological information which includes, with the application of genetic techniques, the sex and identity of individuals that defecated, thus providing potentially useful data on the behaviour and ecology of individuals, as well as the dynamics and structure of populations. This paper presents estimates of the sex ratio of different felid species (jaguar, Panthera onca; pu...
The surrounding thermal environment has a direct influence on the well-being of an animal. However, few studies have investigated the microclimatic conditions that result from outdoor zoo enclosure designs and whether this affects where animals choose to spend time. Two African lions (Panthera leo) and two Siberian/Amur tigers (Panthera tigris altaica) were observed for a total of 18 full days ...
بررسی فونستیک خانواده سگ‌ماهیان در رودخانه‌های شرق استان تهران از پاییز 1392تا تابستان 1393به اجرا درآمد. برای این منظور 12 ایستگاه نمونه‌برداری انتخاب شد. نمونه‌ها پس از صید توسط الکتروشوکر با فرمالین 10 درصد تثبیت شدند و جهت بررسی‌های زیستسنجی به آزمایشگاه منتقل شدند. نتایج نشان داد که دو گونه متعلق به خانواده لوچ ماهیان در رودخانه‌های شرق استان تهران زیست می‌کنند. گونه Paracobitis malapter...
Analysis of zoogeographic, paleogeographic, and molecular data has shown that the ancestors many fresh- brackish-water cold-tolerant hydrobionts Mediterranean region Danube River basin likely originated in East Asia or Central Asia. The fish genera Gasterosteus, Hucho, Oxynoemacheilus, Salmo, Schizothorax are examples these groups among vertebrates, Magnibursatus (Trematoda), Margaritifera, Pot...
Translocation of cymtDNA into the nuclear genome, also referred to as numt, has been reported in many species, including several closely related to the domestic cat (Felis catus). We describe the recent transposition of 12,536 bp of the 17 kb mitochondrial genome into the nucleus of the common ancestor of the five Panthera genus species: tiger, P. tigris; snow leopard, P. uncia; jaguar, P. onca...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید