Related Experiment Video
Updated: May 15, 2025

Sampling and Pretreatment of Tooth Enamel Carbonate for Stable Carbon and Oxygen Isotope Analysis
Published on: August 15, 2018
Stable isotopic differences (δ13C and δ15N) between muscle and fin ray tissues from juvenile Atlantic goliath grouper
Ester F Barbosa1,2,3, Rodrigo F Bastos1,4,5, Lorena L Almeida1,3
1Laboratório de Ecologia de Peixes Marinhos-LEPMAR, Departamento de Ciências Agrárias e Biológicas, CEUNES, Universidade Federal do Espírito Santo, São Mateus, Litorâneo, Brazil.
Abstract:
The Atlantic goliath grouper (Epinephelus itajara) is the largest species of grouper in the Atlantic Ocean and is classified as critically endangered in Brazil. This study compared the isotopic ratios of carbon (δ13C) and nitrogen (δ15N) between the muscle tissue and dorsal-fin rays of 37 juveniles to assess fin rays as a non-lethal alternative to muscle tissue sampling. The δ13C values in rays were significantly higher than those found in muscle, whereas the δ15N values did not differ significantly between tissues. Both stable isotopes showed high Spearman correlation coefficients (>0.80) between tissues. Thus, the study can enhance future research and broaden the application of stable isotope techniques in a non-lethal manner.
More Related Videos
12:10Stable Isotopic Profiling of Intermediary Metabolic Flux in Developing and Adult Stage Caenorhabditis elegans
Published on: February 27, 2011
10:16Design and Operation of a Continuous 13C and 15N Labeling Chamber for Uniform or Differential, Metabolic and Structural, Plant Isotope Labeling
Published on: January 16, 2014
Related Concept Videos
Mass Spectrometry: Isotope Effect
High-Resolution Mass Spectrometry (HRMS)
Isotopes
An element's atomic mass, or weight,...
¹H NMR Chemical Shift Equivalence: Homotopic and Heterotopic Protons
Isotopes and Radioisotopes
An isotope containing...
Atomic Nuclei: Nuclear Spin State Population Distribution