scholarly journals A case of tetrophthalmia with unilateral synophthalmia in an unborn fetus of blue shark Prionace glauca (Carcharhiniformes, Carcharhinidae)

2018 ◽  
Vol 53 ◽  
pp. 25
Author(s):  
Víctor Pastén-Marambio ◽  
Valentina Hevia-Hormazábal ◽  
Enzo Acuña ◽  
Alonso Vega
Keyword(s):  
Gravid Female ◽  
Axial Skeleton ◽  
Biological Study ◽  
Blue Shark ◽  
Prionace Glauca ◽  
Central Chile ◽  
Caudal Portion ◽  
World Report ◽  
First World ◽  
Unborn Fetus

This study describes and classifies a case of multiple malformations in an unborn blue shark Prionace glauca fetus, which was extracted from a gravid female captured during a research campaign addressed to the biological study of sharks in northern and central Chile. The analyzed specimen shows tetrophthalmia with unilateral synophthalmia, anomaly characterized by the existence of 4 ocular globes, two of which are partially fused. In addition, the axial skeleton of the fetus shows thoracic lordosis and helical torsion in the abdominal-caudal portion. This is the first world report of tetrophthalmia with unilateral synophthalmia in chondrichthyans.

Isotopic niches of the blue shark Prionace glauca and the silky shark Carcharhinus falciformis in the southwestern Indian Ocean

2012 ◽  
Vol 17 (1) ◽  
pp. 83-92 ◽  
Author(s):  
N Rabehagasoa ◽  
A Lorrain ◽  
P Bach ◽  
M Potier ◽  
S Jaquemet ◽  
...  
Keyword(s):  
Indian Ocean ◽  
Blue Shark ◽  
Prionace Glauca ◽  
Silky Shark ◽  
Carcharhinus Falciformis ◽  
Southwestern Indian Ocean

Seasonal migrations of pregnant blue shark Prionace glauca in the northwestern Pacific

2020 ◽  
Author(s):  
Y Fujinami ◽  
K Shiozaki ◽  
Y Hiraoka ◽  
Y Semba ◽  
S Ohshimo ◽  
...  
Keyword(s):  
Northwestern Pacific ◽  
Blue Shark ◽  
Prionace Glauca ◽  
Seasonal Migrations

Spatial distribution of the parasite Kroyeria carchariaeglauci Hesse, 1879 (Copepoda: Siphonostomatoida: Kroyeriidae) on gills of the blue shark (Prionace glauca (L., 1758))

1987 ◽  
Vol 65 (5) ◽  
pp. 1275-1281 ◽  
Author(s):  
George W. Benz ◽  
Kevin S. Dupre
Keyword(s):  
Spatial Distribution ◽  
Natural Selection ◽  
Distribution Pattern ◽  
Surface Area ◽  
Blue Shark ◽  
Prionace Glauca ◽  
Homogeneous Groups ◽  
Secondary Lamellae ◽  
Gill Filaments ◽  
Gill Surface Area

Five blue sharks (Prionace glauca) were examined for gill-infesting copepods. Three species of siphonostomatoid copepods were collected: Gangliopus pyriformis, Phyllothyreus cornutus, and Kroyeria carchariaeglauci. The spatial distribution of K. carchariaeglauci was analyzed. The number of K. carchariaeglauci per shark was positively related to gill surface area and host size. Copepods were unevenly distributed amongst hemibranchs; flanking hemibranchs could be arranged into three statistically homogeneous groups. Female K. carchariaeglauci typically attached themselves within the middle 40% of each hemibranch; males were more evenly dispersed. Eighty percent of all K. carchariaeglauci attached themselves to secondary lamellae, the remainder were in the underlying excurrent water channels. Most K. carchariaeglauci were located between 10 and 25 mm along the lengths of gill filaments. Overall, the spatial distribution of K. carchariaeglauci was quite specific in all study planes. Explanation of this distribution is set forth in terms of natural selection pressures; however, the equally plausible explanation that the distribution pattern exhibited by these copepods is phylogenetically determined and may have little to do with contemporary selective constraints should not be ignored.

Preliminary age and growth estimates of the blue shark (Prionace glauca) from Papua New Guinea

2021 ◽  
Author(s):  
Sushmita Mukherji ◽  
Jonathan Smart ◽  
Brooke D’Alberto ◽  
Leontine Baje ◽  
Andrew Chin ◽  
...  
Keyword(s):  
Papua New Guinea ◽  
New Guinea ◽  
Age And Growth ◽  
Blue Shark ◽  
Prionace Glauca

scholarly journals The World Health Organization/World Bank’s First World Report on Disability

2011 ◽  
Vol 3 (2) ◽  
pp. 11-14 ◽  
Author(s):  
Katherine D. Seelman
Keyword(s):  
New York ◽  
World Health Organization ◽  
Communication Technology ◽  
World Health ◽  
The World Bank ◽  
The World ◽  
Information And Communication ◽  
World Report ◽  
Health Organization ◽  
First World

In June, 2011 at the United Nations (UN) in New York City, the World Health Organization (WHO) and the World Bank launched the first World Report on Disability. This short overview of the Report provides information about its purpose, development and content, intended audiences, and outcomes.  Special attention is directed to the sections of the Report which address telerehabilitation and information and communication technology.

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