Marine species eat garbage not because they want to, but because they often mistake it for food. From floating plastic bags that resemble jellyfish to microplastics hiding in plankton, the ocean is now a buffet of the wrong kind. But among all the creatures in the sea, which marine species eats the most garbage?
Let’s dive into the most affected marine animals — and what we can do about it.
Table of Contents
🐢 1. Sea Turtles – Mistaking Plastic for Jellyfish

Sea turtles are one of the most tragic victims of ocean pollution. They often mistake plastic bags for jellyfish, one of their favorite foods. According to marine biologists, over 50% of sea turtles have ingested plastic at some point in their lives.
Once consumed, plastic can cause blockages, infections, or even starvation, as the turtle feels “full” but isn’t getting any nutrients.
🐦 2. Seabirds – Especially Albatrosses

Albatrosses and other seabirds like shearwaters and gulls are notorious for feeding garbage to their chicks. Researchers studying Midway Atoll found albatross carcasses filled with plastic lighters, bottle caps, and bits of plastic packaging.
Why? They mistake shiny, colorful pieces of plastic floating on the water for fish or squid.
🐬 3. Dolphins and Whales – Plastic in the Deep
Though they usually eat fish and squid, dolphins and whales have been found with plastic in their stomachs—especially sperm whales and pilot whales. Some have ingested fishing nets, ropes, and plastic sheeting. These can cause internal wounds or lead to deadly blockages.
As top predators, they’re also affected by microplastic buildup through bioaccumulation — meaning plastic travels up the food chain, reaching even the most majestic animals.
🐟 4. Small Fish – The Silent Victims of Microplastics
Small fish such as anchovies and sardines ingest microplastics directly from the water or through contaminated plankton. These plastics may not kill them immediately, but they harm fish digestion, reproduction, and even behavior.
These fish are also part of human diets — meaning plastic pollution is coming full circle back to our plates.
🌍 Why This Matters for Tourists & Island Lovers
If you’re planning a boat trip or snorkeling tour in places like the Phi Phi Islands, Similan Islands, or Surin Islands, remember: the beauty of the sea depends on us keeping it clean. Choosing eco-friendly island tours and avoiding single-use plastics helps protect the wildlife you came to see.
Love Andaman supports sustainable tourism and marine education across destinations like:
🌱 How You Can Help
- Say no to plastic straws and bags.
- Join a beach cleanup or support eco-tour providers.
- Use reef-safe sunscreen to protect coral.
- Share marine awareness posts on Instagram or Facebook.
Let’s protect our oceans — save marine species from eating garbage, not just for the animals, but for future travelers too.