Marine life tattoos often symbolize emotional depth, resilience, and adaptability, as these creatures thrive in the vast and unpredictable ocean. Shellfish and jellyfish tattoos can represent protection, creativity, and transformation, while fish and sharks can signify strength, courage, and perseverance. These tattoos also commonly represent a connection to the natural world and the subconscious, serving as a reminder of the intricate balance between human life and the ocean's ecosystem.