Computed tomographic and cross-sectional anatomy of the normal pacu (Colossoma macroponum)

Alaina Carr, E. P Scott Weber, Christopher J Murphy, Allison Zwingenberger

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


The purpose of this study was to compare and define the normal cross-sectional gross and computed tomographic (CT) anatomy for a species of boney fish to better gain insight into the use of advanced diagnostic imaging for future clinical cases. The pacu (Colossoma macropomum) was used because of its widespread presence in the aquarium trade, its relatively large body size, and its importance in the research and aquaculture settings. Transverse 0.6-mm CT images of three cadaver fish were obtained and compared to corresponding frozen cross sections of the fish. Relevant anatomic structures were identified and labeled at each level; the Hounsfield unit density of major organs was established. The images presented good anatomic detail and provide a reference for future research and clinical investigation.

Original languageEnglish (US)
Pages (from-to)184-189
Number of pages6
JournalJournal of Zoo and Wildlife Medicine
Issue number1
StatePublished - 2014
Externally publishedYes


  • Anatomy
  • Colossoma
  • computed tomography
  • fish
  • pacu

ASJC Scopus subject areas

  • Animal Science and Zoology
  • veterinary(all)


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