نتایج جستجو برای: basin morphology

تعداد نتایج: 201841  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید بهشتی - دانشکده علوم 1386

چکیده ندارد.

Journal: :Science 2008
Scott L Murchie Thomas R Watters Mark S Robinson James W Head Robert G Strom Clark R Chapman Sean C Solomon William E McClintock Louise M Prockter Deborah L Domingue David T Blewett

The Caloris basin, the youngest known large impact basin on Mercury, is revealed in MESSENGER images to be modified by volcanism and deformation in a manner distinct from that of lunar impact basins. The morphology and spatial distribution of basin materials themselves closely match lunar counterparts. Evidence for a volcanic origin of the basin's interior plains includes embayed craters on the...

Journal: :Evolution; international journal of organic evolution 2010
Robert W Bryson Adrian Nieto-Montes de Oca Jef R Jaeger Brett R Riddle

We investigate the evolutionary history of the wide-ranging Nearctic treefrog Hyla arenicolor through the integration of extensive range-wide sampling, phylogenetic analyses of multilocus genetic data, and divergence dating. Previous phylogeographic studies of this frog documented a potential signature of introgressive hybridization from an ecologically and morphologically divergent sister spec...

Journal: :international journal of aquatic biology 0
brian w. coad canadian museum of nature, ottawa, ontario, k1p 6p4 canada.

the systematics, morphology, distribution, biology, economic importance and conservation of the freshwater eel ( anguilla anguilla ) of iran are described, the species is illustrated, and a bibliography on this fish in iran is provided. the species is found in the caspian sea basin as an exotic.

Journal: :international journal of aquatic biology 0
brian w. coad canadian museum of nature, ottawa, ontario, k1p 6p4 canada.

the systematics, morphology, distribution, biology, economic importance and conservation of the perches of iran are described, the species are illustrated, and a bibliography on these fishes in iran is provided. there are three species, perca fluviatilis , sander lucioperca and s. marinus , found naturally in the caspian sea basin, with s. lucioperca translocated.

Some 78 specimencs of trout barb (Capoeta trutta) from four rivers of Bushehr Basin were caught by seine net to compare their morphology using geometric morphometrics. The specimens after anestethizing in 1% clove oil, were fixed in bufferd 10% formalin and transferred to the Isfahan University of Technology Ichthyology Museum for further studies. Geometric morphometric method were applied to a...

Journal: :iranian journal of ichthyology 0
brian w coad research scientist, ichthyology section, canadian museum of nature, ottawa, canada.

the systematics, morphology, distribution, biology, economic importance and conservation of the freshwater catfishes of iran are described, the species are illustrated, and a bibliography on these fishes is provided. there are four families with four genera and six species, one of which is an exotic; the family bagridae with one genus and species, mystus pelusius in the persian gulf, hormuz and...

Journal: :international journal of aquatic biology 0
brian w. coad canadian museum of nature, ottawa, ontario, k1p 6p4 canada.

the silversides or sand smelts are found in coastal areas of temperate to tropical seas and in fresh water. there are about 14 genera and 68 species with only one native species in the caspian sea basin, atherina caspia . in this review, the systematics, morphology, distribution, biology, economic importance and conservation of the caspian silverside of iran are described, the species is illust...

Journal: :Japanese Journal of Limnology (Rikusuigaku Zasshi) 1997

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