Carbon isotopic changes of 16 proteinogenic amino acids during trophic transfer in a cultured marine consumer

Key Points

• Amino acids show significant changes in carbon isotopic composition during trophic transfer, highlighting complex dietary influences.
• The study found that fluctuations in carbon isotopes among 16 proteinogenic amino acids are indicative of food web dynamics.
• Isotopic analysis was conducted on cultured marine consumers to observe variations in amino acid composition across trophic levels.
• These findings suggest that understanding isotopic variation may enhance knowledge of marine nutritional ecology.