نتایج جستجو برای: rutilus rutilus caspicus

تعداد نتایج: 1051  

Journal: :Molecular phylogenetics and evolution 2004
Joseph A Cook Amy M Runck Chris J Conroy

Evolutionary relationships of red-backed voles and their relatives were examined and used to test biogeographic hypotheses. Sequences of the mitochondrial cytochrome b gene were obtained for 25 individuals representing Alticola macrotis, Clethrionomys californicus, C. gapperi, C. glareolus, C. rutilus, and C. rufocanus. These were combined with 21 partial sequences from GenBank for C. regulus, ...

Journal: :Journal of zoological research 2021

This article considers the natural regulators of blood-sucking Simuliidae subzone mixed forests on territory Belarus and Ukraine. In forests, major preimaginal phases bloodsucking blackflies are microsporidia (Polidyspirenia simulii, Polidyspirenia sp., Thelohania fibrata, Amblyospora bracteata, A. varians), fungi mermithides (Gastromermis boophthorae). Caddisfly larvae (Hydropsyche angustipenn...

ژورنال: توسعه آبزی پروری 2015
بهمنش, شهرام, چکمه دوز قاسمی, فریدون,

رابطه فیلوژنی دو زیر گونه مهم و اقتصادی از جنس Rutilus متعلق به خانواده کپورماهیان شامل ماهی کلمه (Rutilus rutilus caspicus) و ماهی سفید (Rutilus frisii kutum) سواحل جنوبی دریای خزر به‌منظور وجود رابطه خواهری با بخشی از ژن سیتوکروم b میتوکندریایی و روش توالی یابی DNA مورد بررسی قرار گرفت. روش کار شامل نمونه‌برداری از باله دمی، استخراج DNA، PCR و توالی‌یابی بود. جهت تجزیه و تحلیل، از تعدادی از ...

Journal: :E3S web of conferences 2021

Population-ecological analysis of Aral roach ( Rutilus rutilus aralensis ) was conducted in Tuzkan lake Aydar-Arnasay system Uzbekistan. In the system, it analyzed age structure, body weight, 19 morphometric and 5 meristematic indicators 158 fish specimens caught Lake January February 2020. The main selected as a result statistical are: arithmetic mean; error rate; variability morpho-physiologi...

2014
Salar Valinia Göran Englund Filip Moldan Martyn N Futter Stephan J Köhler Kevin Bishop Jens Fölster

Quantifying the effects of human activity on the natural environment is dependent on credible estimates of reference conditions to define the state of the environment before the onset of adverse human impacts. In Europe, emission controls that aimed at restoring ecological status were based on hindcasts from process-based models or paleolimnological reconstructions. For instance, 1860 is used i...

2013
Ben B. Chapman Anders Eriksen Henrik Baktoft Jakob Brodersen P. Anders Nilsson Kaj Hulthen Christer Brönmark Lars-Anders Hansson Peter Grønkjær Christian Skov

Migration has evolved as a strategy to maximise individual fitness in response to seasonally changing ecological and environmental conditions. However, migration can also incur costs, and quantifying these costs can provide important clues to the ultimate ecological forces that underpin migratory behaviour. A key emerging model to explain migration in many systems posits that migration is drive...

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