For recognise different species of shark look at well the dorsalan finish. For instance at the dusky-shark the first dorsala finish slopes and start over or a bit before the free peaks of the pektoralaj finishes. Black-shed sharks own long finishes with more triangular form than other species.
At them the first dorsala finish starts only over or behind the pektoralaj finishes except that they have little second dorsalan finish. Stocky-shark projects by means of his terrific rounded first dorsala finish and long broad pektoralaj finishes that usually has white verston or white spots.
How to Identify Sharks by Their Dorsal Fin
Some sharks have genuinely separate forms. Big hammerhead-shark bears slim big curved dorsalan finish similarly to falĉono. Sicklefin-citronaj sharks have very high and slim dorsalan finishes that stands more closely one to the another beside the tail.
They do not swim beside the surface. Young citronaj sharks have yellowish colour and body that is not thick as that of virbovaj sharks. The position of the dorsala finish at citrona shark coincides more with its body than at virbova shark.
Thresher-shark famas because of his extremely long upper lugs of the vosta finish that can reach the longon of the whole body. If the finish is not like this long it can not be thresher-shark.
You can also observe special marks or colours. Shark maybe shows cicatrojn behind the second dorsala finish on the right aspect of the body or bright akvomarcon on the right pektoralo. Some finishes have slim striking eventual edge and ruĝbrunon colour.
Longfina mako commonly have rounded dorsalan finish with dark edges. Resting sharks visit the Cape laŭsezone and commonly swim beside the surface. If you see two finishes deals about shark that show his dorsalan finish and the top of the tail.
Although many modes for identify sharks exist as scars and korpomarkoj some scientists use method called identigado of dorsala finish. Dorsala ŝarkfino have almost direct line on the cefala aspect rather to delfenfino who curves back distinctly. Fin of shark as that of big white are much more big triangular and muskolita than other forms.