Morphometric variation among four populations of Shemaya (Alburnus chalcoides) in the south of Caspian Sea using truss network
نویسندگان
چکیده
منابع مشابه
assessment of the efficiency of s.p.g.c refineries using network dea
data envelopment analysis (dea) is a powerful tool for measuring relative efficiency of organizational units referred to as decision making units (dmus). in most cases dmus have network structures with internal linking activities. traditional dea models, however, consider dmus as black boxes with no regard to their linking activities and therefore do not provide decision makers with the reasons...
allometric body shape changes and morphological differentiation of shemaya, alburnus chalcoides (guldenstadf, 1772), populations in the southern part of caspian sea using elliptic fourier analysis
study of phenotypic diversity among populations can help better understanding of diversification of species within ecosystems and intraspecific diversification in fishes. a geometric morphometric study was carried out using the elliptic fourier analysis to demonstrate the effect of habitat type on morphological features of shemaya ( alburnus chalcoides ) populations. populations were sampled fr...
متن کاملAge determination and morphology of otolith in Alburnus chalcoides (Guldenstaedt,1772) in the southern Caspian Sea
The aim of this study was to provide necessary information on the age, growth and sex ratio of one of commercially important cyprinid species, Alburnus chalcoides in the southern Caspian Sea (North Iran) from 2010 through 2011. 53 specimens of both sexes (males and females) were collected monthly. The samples were transported tothe laboratory for further biological measurements and otolith extr...
متن کاملreview on the caspian shemaya, alburnus chalcoides (güldenstädt, 1772)
alburnus chalcoides , caspian shemaya, is found in the river systems of the aral, black and caspian sea basins and is an economically valuable cyprinid from the southern caspian sea. this species has been reported as near threatened species in this basin due to damming, over and illegal fishing, destruction of its spawning grounds and water pollution. the caspian shemaya is an important species...
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اندیشمندان و صاحب نظران علوم اجتماعی بر این باورند که مرحله تازه ای در تاریخ جوامع بشری اغاز شده است. ویژگیهای این جامعه نو را می توان پدیده هایی از جمله اقتصاد اطلاعاتی جهانی ، هندسه متغیر شبکه ای، فرهنگ مجاز واقعی ، توسعه حیرت انگیز فناوری های دیجیتال، خدمات پیوسته و نیز فشردگی زمان و مکان برشمرد. از سوی دیگر قدرت به عنوان موضوع اصلی علم سیاست جایگاه مهمی در روابط انسانی دارد، قدرت و بازتولید...
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ژورنال
عنوان ژورنال: The Journal of Basic & Applied Zoology
سال: 2013
ISSN: 2090-9896
DOI: 10.1016/j.jobaz.2013.09.001