Abercrombie et al_Fi..
Abercrombie et al_Fi..
Abercrombie et al_Fi..
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Porbeagle shark (Lamna nasus)<br />
Distribution: Widely distributed in temperate and subpolar regions (absent in North Pacific).<br />
Habitat: Pelagic. Mostly taken in pelagic fisheries.<br />
Pector<strong>al</strong> fin description<br />
The fin is short, broad from<br />
leading edge to trailing edge with<br />
a rounded apex. The dors<strong>al</strong><br />
surface is dark, slate grey or<br />
greyish-brown or in color, with a<br />
white margin running <strong>al</strong>ong the<br />
leading edge of the free rear tip.<br />
The ventr<strong>al</strong> surface is dark <strong>al</strong>ong<br />
the leading edge, and from the<br />
apex throughout the middle of<br />
the fin.<br />
Similar species: Shortfin mako pector<strong>al</strong> fins have a similar shape and the dors<strong>al</strong> surface is a similar<br />
color but the ventr<strong>al</strong> side is compl<strong>et</strong>ely white, lacking the dark coloration of porbeagle pector<strong>al</strong> fin.<br />
White shark pector<strong>al</strong> fins <strong>al</strong>so have a similar shape and color on the dors<strong>al</strong> side but have black<br />
markings on the ventr<strong>al</strong> surface that are confined to the fin apex.<br />
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