Investigation of serum thyroid hormones, iodine and cobalt concentrations across common aquarium-housed elasmobranchs.

ABSTRACT:

Introduction

Thyroid disease is an important condition to understand in elasmobranchs, with goiters being predominant. To identify dysfunction, measuring serum thyroid hormone levels is a standard of practice for diagnosing disease in most species. Although these levels have been reported in elasmobranch literature, the testing methodology is varied and values are not clinically useful for most aquarium species. In a group of aquarium-housed elasmobranchs, thyroid hormone levels had been persistently low or not detectable in otherwise healthy animals as well as animals with thyroid disease. The concern for reliability of these results to diagnose thyroid disease, prompted a shift to serum iodine levels as a proxy to determine thyroid health.

Methods

This study assesses thyro

SUBMITTER: Wheaton CJ 

PROVIDER: S-EPMC11924943 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature