Marine Food Chain Diagram: Seagrass to Fish Energy Flow #3640823 (License: Personal Use)

The diagram depicts a linear marine trophic cascade: vibrant green seagrass serves as the primary producer, supporting a herbivorous snail; the snail is preyed upon by a green crab, which in turn becomes food for a blue predatory fish like a tuna. Blue arrows indicate unidirectional energy transfer between trophic levels. Each organism is illustrated in realistic style against a transparent background for educational clarity.

Used in biology or environmental science web pages, lesson plans, or interactive ecology modules to teach primary production, consumer roles, and energy transfer in coastal ecosystems. Matches user intent for visual learning resources on food webs.