spacer gif spacer gif spacer gif spacer gif spacer gif
QUICK SEARCH:   [advanced]


spacer gif
     Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents    

Right arrow Help viewing high resolution images
Right arrow Return to article

(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)
Click on image to view larger version.



Fig. 2. Anatomical landmarks digitized (black points) with the calculated kinematic variables (arrows) on the lateral (A) and ventral (B) high-speed video images of Clarias gariepinus. The landmarks are: 1, middle of the eye; 2, upper jaw tip, interior side; 3, lower jaw tip, interior side; 4, tip of the hyoid; 5, most ventrally positioned point of the branchiostegal membrane; 6, rostral tip of the skull roof; 7, caudal tip of the skull roof; 8, anterior tip of the caudal fin; 9, hyoid symphysis; 10,11, most caudally discernible points on the hyoid bars; 12,14, base of pectoral spine; 13,15, lateral tip of the branchiostegal membrane. The measured linear variables are: gape distance (a), hyoid depression (b), branchiostegal depression (c) and lateral branchiostegal expansion (f, average between left and right). The angular variables are: neurocranial elevation (d) and lateral hyoid abduction (e). The red lines represent the coordinate system moving with the head of the catfish.





Right arrow Return to article