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VM244: Diagnostic Methods for the Comprehensive Health Assessment of the Long-Spined Sea Urchin, Diadema antillarum

Figure G10-1. Gross recognizable abnormalities (some pathologies) shown. (a) Red alimentary tract of juvenile specimen. (b) Red alimentary tract of adult specimen. (c) Erosion (arrow) of periproct of adult specimen. (d) Another angle view of (c). (e) Periproct exhibiting nodular appearance in juvenile specimen. (f) Periproct exhibiting elongated appearance in juvenile specimen. (g) Periproct prolapsed in adult specimen. (h) In situ view of elongated periproct in juvenile specimen. (i) In situ view of nodular appearance of periproct in juvenile specimen. (j) Enlarged view of (i). (k) Needle mark artifact at the small intestine in juvenile specimen. (l) Enlarged view of (k). (m) Needle puncture artifact at the small intestine near esophagus of juvenile specimen. (n) Another juvenile specimen showing a needle puncture artifact at the small intestine near esophagus. (o) Tissues extracted view for the needle puncture artifact at the small intestine near esophagus of juvenile specimen. (p) Enlarged view of (o). (q) Enlarged hole possibly occurred following multiple needle punctures in an adult specimen. (r) High-magnification view and different angle of (q). (s) Black spots found at mesenteries of the esophagus within dashed area. (t) Enlarged view of (s) showing black spots. Black arrow = erosion; Esoph = esophagus; Go = gonad; LI = large intestine; Rect = rectum; SI = small intestine; White arrow = possible needle puncture mark artifact; White arrow head = nodule; White dashed arrow = black spots.

Credit: Yasunari Kiryu, FWC/FWRI