The ocean covers 71% of the Earth’s surface, and 26 out of the 28 animal phyla inhabit aquatic environments. It is estimated that over 1000 crustacean species and more than 50,000 mollusk species live in the sea, making marine ecosystems a rich reserve of animal resources with diverse biological activities. In recent years, as traditional terrestrial biological resources have become scarce, the sustainable development of marine biological resources has emerged as a key research focus. Shellfish, which are widely distributed across various water bodies, are valued for their fresh, tender meat and high nutritional content. Marine shellfish are rich in active substances such as proteins and peptides, serving as both a critical raw material for the comprehensive utilization of marine protein resources and a major component of global aquatic food supplies. Shellfish primarily belong to mollusks, a group of invertebrates. Their soft tissues are categorized into cephalic and visceral regions, and they can be further classified into bivalves and gastropods. Bivalves of significant commercial value include mussels, oysters, clams, and scallops, while gastropods include abalone, sea snails, and conchs. According to the 2024 State of World Fisheries and Aquaculture report, global fisheries and aquaculture production reached 232.2 million tons in 2022, a 4.4% increase from 2020. Of this total, aquatic animals accounted for 185.4 million tons, and algae contributed 37.8 million tons. The world’s leading marine shellfish farming countries include China, Chile, Japan, South Korea, the United States, Spain, Canada, France, Italy, and New Zealand.