The global fish peptones market is projected to grow from USD 1,746.9 million in 2025 to USD 2,566.4 million by 2035, registering a robust CAGR of 3.9%. Enzymatic hydrolysis peptones hold the largest product segment share at 44.2% in 2025, driven by their superior yield and high bioavailability. Microbial culture media will dominate the application segment with a 36.5% market share, owing to its essential role in biotechnology and fermentation-based diagnostics.