The state Department of Land and Natural Resources is investigating the large-scale die-off of fish and squid on Kauai.
The department said Wednesday between 500 and 800 lanternfish and squid were reported dead or dying near Nawiliwili.
Both types of marine life live in waters 300 to 600 feet deep or deeper. The department says they are known for migrating to shallower waters at night.
Division of Aquatic Resources staff and U.S. Geological Survey biologists are collecting samples to determine why the fish and squid are dying.
The department is asking the public to help it understand how widespread the die-off is. It's asking people to look for dead or dying marine life on the beach and report what they find on the Eyes of the Reef Network website.