Measurements
|
Description of the measurements with the landmarks
|
Standard length |
From the anteriormost point of the snout (1) to the distal margin of the hypurals (2) |
Body depth |
From dorsal-fin insertion (3) to the pelvic-fin insertion (4) |
Head length |
From the anteriormost point of the snout (1) to the posteriormost point of the opercle, not including the opercular membrane (5) |
Supraoccipital process |
From the Supraocciptal’s base (6) to the Supraocciptal’s distal tip (7) |
Predorsal length |
From the anteriormost point of the snout (1) to the dorsal-fin insertion (3) |
Postdorsal length |
From the dorsal-fin insertion (3) to the distal margin of the hypurals (2) |
Prepectoral length |
From the anteriormost point of the snout (1) to the pectoral-fin insertion (8) |
Prepelvic length |
From the anteriormost point of the snout (1) to the pelvic-fin insertion (4) |
Preanal length |
From the anteriormost point of the snout (1) to the anal-fin insertion (9) |
Dorsal-fin length |
From the dorsal-fin insertion (3) to the distal tip of the longest dorsal-fin unbranched ray (10) |
Interdorsal length |
From the dorsal-fin origin (11) to the anterior end of the adipose-fin base (12) |
Pectoral-fin length |
From the pectoral-fin insertion (8) to the pectoral-fin distal tip (13) |
Pelvic-fin length |
From the pelvic-fin insertion (4) to the pelvic-fin distal tip (14) |
First anal-fin lobe length |
From the anal-fin insertion (9) to the distal tip of the longest anal-fin unbranched ray (15) |
Second anal-fin lobe length |
From the base of the longest branched ray of the second anal-fin lobe (16) to its tip (17) |
Adipose-fin length |
From the anterior end of the adipose-fin base (12) to the distal end of the anterodorsal margin of the adipose fin (18) |
Dorsal-fin base length |
From the dorsal-fin insertion (3) to the dorsal-fin origin (11) |
Adipose-fin base length |
From the anterior end of the adipose-fin base (12) to the posterior end of the adipose-fin base (19) |
Anal-fin base length |
From the anal-fin insertion (9) to the posterior end of the anal-fin base (20) |
Caudal-peduncle depth |
The shortest distance between the dorsal and ventral profiles of the caudal peduncle (21 to 22’) |
Width of peduncle |
Point in which the caudal peduncle is wider (33 to 33’) |
Supraoccipital to dorsal-fin |
From the supraocciptal’s base (6) to the dorsal-fin insertion (3) |
Snout to Supraoccipital |
From the anteriormost point of the snout (1) to the supraocciptal’s distal tip (7) |
Snout to base of supraocciptal |
From the anteriormost point of the snout (1) to the supraocciptal’s base (6) |
Pelvic-anal distance |
From the pelvic-fin insertion (4) to the anal-fin insertion (9) |
Pectoral-pelvic distance |
From the pectoral-fin insertion (8) to the pelvic-fin insertion (4) |
Dorsal-fin origin to anal-fin origin |
From the dorsal-fin insertion (3) to the anal-fin insertion (9) |
Dorsal-fin end to anal-fin origin |
From the dorsal-fin origin (11) to the anal-fin insertion (9) |
Dorsal-fin end to anal-fin end |
From the dorsal-fin origin (11) to the posterior end of the anal-fin base (20) |
Head width |
Point in which the head is wider (32 to 32’) |
Postorbital distance |
From the posteriormost margin of the eye (23) to the posteriormost point of the opercle, not including the opercular membrane (5) |
Fourth infraorbital width |
From the middle point of the anteromargin of the fourth infraorbital (23) to the middle point of its posterior margin (24) |
Third infraorbital width |
From the middle point of the anterordorsal margin of the third infraorbital (25) to the middle point of its posteroventral margin (26) |
Cheek gap width |
From the middle point of the third infraorbital posteroventral margin (26) to the internal angle of the preopercle (27) |
Interorbital width |
Between the dorsalmost point of the orbits (28 to 28’) |
Eye vertical diameter |
From the dorsalmost point of the orbit (28) to its ventralmost point (29) |
Snout length |
From the anteriormost point of the snout (1) to the anteriormost point of the orbit (30) |
Mouth length |
From the anteriormost point of the snout (1) to the distal end of the maxilla (31) |
Mouth width |
Between the distal tip of the maxillae (31 to 31’) |