July1 , 2022

Ocean Disposal of Fish Wastes



Ocean Disposal of Fish Wastes

Under the Marine Protection, Research and Sanctuaries Act (MPRSA), a permit is not required for the ocean disposal of fish wastes unless such disposal occurs in:

  • harbors or other protected or enclosed coastal waters; or any other location where EPA finds that such disposal may reasonably be anticipated to endanger health, the environment or ecological systems.

Read also: Use of chicken manure in aquaculture 


Environmental Concerns for Disposing of Fish Wastes in the Ocean

Fish waste may include, but is not limited to, particles of flesh, skin, bones, entrails, shells or liquid stick water. Fish wastes degrade rapidly in warm temperatures. If not appropriately stored or managed, fish wastes create aesthetic problems and strong odors as a result of bacterial decomposition. The organic components of the waste have a high biological oxygen demand and, if not managed properly, high oxygen demand poses environmental and health problems. Some fish wastes are transported for disposal at sea. Environmental concerns associated with disposal of fish wastes into ocean waters include:

  • reduced oxygen levels in the seawaters at the ocean bottom;
  • burial or smothering of living organisms; and
  • introduction of disease or non-native and invasive species to the ecosystem of the sea floor.

Read also: Risk and challenges of fish farming

Marine Protection, Research and Sanctuaries Act (MPRSA) Permits for Fish Waste

EPA has issued special permits and research permits under the MPRSA for the ocean disposal of fish wastes. Please see our Special and Research Permits for Ocean Dumping Web page for examples of MPRSA permits for fish wastes.

For more information and updates join our WhatsApp group HERE

Like our page on Facebook HERE


We do everything possible to supply quality information for farmers day in, day out and we are committed to keep doing this. Your kind donation will help our continuous research efforts.