Inter-population differences in otolith morphology are genetically encoded in the killifish <i>Aphanius fasciatus</i> (Cyprinodontiformes)
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چکیده
منابع مشابه
Sex differences in neuronal morphology in the killifish hypothalamus.
This study examined the neuroarchitecture of the male and female killifish (Fundulus heteroclitus) hypothalamus to evaluate whether sexual dimorphism of this brain region exists in fishes as it does in mammals and other vertebrates. The rostral medulla, a brain region distinct from the hypothalamic-pituitary-gonadal axis, was also examined to determine if any observed differences were region-sp...
متن کاملDivergent karyotypes of the annual killifish genus Nothobranchius (Cyprinodontiformes, Nothobranchiidae)
Karyotypes of two species of the African annual killifish genus Nothobranchius Peters, 1868, Nothobranchius brieni Poll, 1938 and Nothobranchius sp. from Kasenga (D.R. Congo) are described. Both species displayed diploid chromosome number 2n = 49/50 for males and females respectively with multiple-sex chromosome system type X1X2Y/X1X1X2X2. The karyotypes of studied species are considerably diff...
متن کاملAphyosemion pamaense, a new killifish species (Cyprinodontiformes: Nothobranchiidae) from Cameroon.
Aphyosemion panaense sp. nov. is described from the Pama River, a small tributary of the Nyong, in the surroundings of Pama, Cameroon. It belongs to the subgenus Chromaphyosenion Radda, 1971 and is distinguished from its relatives by a unique/diagnostic combination of characters: orange unpaired fins, an anal fin without spots, an orange throat and purple to blue-grey flanks. The new species is...
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 کاملGender Differences in the Prevalence of Electrocardiogram Abnormalities in the Elderly: A Population Survey in India
Background: The health transition in India reflects the growing burden of cardiovascular diseases. It is well-known that there are significant and meaningful differences in the measured electrocardiogram (ECG) parameters between females and males. Specific to ECG diagnosis and ischemia, reports have indicated a higher number of false positive results in female patients than in male patients. Th...
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ژورنال
عنوان ژورنال: Scientia Marina
سال: 2013
ISSN: 1886-8134,0214-8358
DOI: 10.3989/scimar.03763.02a