Results 161 to 170 of about 1,528 (194)

Observaciones de tiburones (Chondrichtyes Euselachii) en aguas de Catalunya (Mediterráneo NO), con algunos aspectos generales de su ecología [PDF]

Barrull, J., Bueno, M., Mate, I.
core  

Novel duplication remnant in the first complete mitogenome of Hemitriakis japanica and the unique phylogenetic position of family Triakidae

Gene, 2022
In this study, we firstly determined the complete mitogenome of the Japanese topeshark (Hemitriakis japonica), which belong to the family Triakidae and was assessed as Endangered A2d on the IUCN Red List in 2021. The mitogenome is 17,301 bp long, has a high AT content (60.0%), and contains 13 protein-coding genes, 22 tRNA genes, 2 rRNA genes, a control
Chen Wang, Pierre Feutry, Ting Zhu
exaly   +3 more sources

Phylogeny of sharks of the family Triakidae (Carcharhiniformes) and its implications for the evolution of carcharhiniform placental viviparity

Molecular Phylogenetics and Evolution, 2006
We present a study of inter- and intra-familial relationships of the carcharhiniform shark family Triakidae aimed at testing existing hypotheses of relationships for this group and at improving understanding of the evolution of reproductive traits in elasmobranchs.
Olivier Fedrigo, Gavin J P Naylor
exaly   +4 more sources

Hifalomicose em Mustelus schmitti (Springer) (Chondrichthyes, Triakidae) [PDF]

Revista Brasileira De Zoologia, 1999
Both fungai and algal infections have been reported in elasmobranchs. This study describes the first record of hyphalomycosis infection in Mustelus schmitii (Springer, 1940). The data was obtained through the examination of one animal in captivity and ninety five in their natural environment.
exaly   +4 more sources

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Family Triakidae

2018
exaly   +2 more sources

First record of a dicephalic specimen of tope Galeorhinus galeus (Elasmobranchii: Triakidae)

Journal of Fish Biology, 2011
The first case of dicephalia in tope Galeorhinus galeus analysed in developing foetuses removed from a pregnant female caught off the Mar del Plata coastal waters, Argentine Sea, is reported here.
Santiago A Barbini, D E Figueroa
exaly   +3 more sources

Hemitriakis complicofasciata, a new whitefin topeshark (Carcharhiniformes: Triakidae) from Japan

Ichthyological Research, 2004
Hemitriakis complicofasciata sp. nov. is described from 18 specimens from the waters of the Ryukyu Islands, southern Japan. This new species is distinguishable from other congeners by the following characters: higher vertebral counts (46–52 monospondylous vertebrae and 124–131 precaudal total vertebrae), presence of a developed posterior nasal flap ...
Masafumi Takahashi, Kazuhiro Nakaya
openaire   +3 more sources

Mitochondrial genome of the spotless smooth-hound Mustelus griseus (Carcharhiniformes: Triakidae)

Mitochondrial DNA Part A, 2014
The complete mitochondrial genome of Mustelus griseus was first determined in this study. It is 16,754 bp in length, consisting of 13 protein-coding genes, 2 rRNA genes, 22 tRNA genes and 1 control region with the typical gene order in vertebrates. Overall nucleotide base composition of the mitogenome is 30.7% A, 24.9% C, 14.0% G and 30.3% T.
Xiao, Chen, Zaiqing, Peng, Lianghao, Pan, Xiaofang, Shi, Ling, Cai   +4 more
openaire   +2 more sources

Triakis acutipinna (Galeoidea, Triakidae), a New Species of Shark from Ecuador

Copeia, 1968
COCHRAN, W. G. AND G. M. Cox. 1957. Experimental designs. 2nd ed. John Wiley and Sons, New York. DICE, L. R. AND H. J. LERAAS. 1936. A graphic method for comparing several sets of measurements. Contrib. Univ. Mich. Lab. Vert. Genet. No. 3. HUBBS, C. L. AND C. HUBBS. 1953. An improved graphical analysis and comparison of series of samples. Syst. Zool. 2(
exaly   +2 more sources