description Doryteuthis pealeii Overview
Doryteuthis pealeii, commonly known as the longfin inshore squid, is a species of small squid found in the western Atlantic Ocean from the Gulf of Mexico to Newfoundland. The species is of major importance to commercial fisheries along the eastern coast of North America, particularly in the Mid-Atlantic and New England regions. In scientific research, Doryteuthis pealeii has been extensively studied because its unusually large giant axon provides an accessible model for investigating nerve impulse propagation and neuronal electrophysiology. The squid typically lives less than one year and occupies coastal and continental shelf waters where it is prey for many fish and marine mammals.
help Doryteuthis pealeii FAQ
Where is Doryteuthis pealeii found?
The longfin inshore squid ranges through the western Atlantic from Newfoundland to the Gulf of Venezuela, including the Gulf of Mexico region. NOAA lists Doryteuthis pealeii as a commercially important species in the New England and Mid-Atlantic area.
What habitat does the longfin inshore squid use?
Adults live over mud or sand-mud bottoms on the continental shelf and upper slope, at depths reaching about 1,300 feet. They tend to stay near the seabed during the day and move upward in the water column at night.
How many eggs does a female Doryteuthis pealeii lay?
A female typically lays egg capsules containing about 150 to 200 eggs each and may produce roughly 3,000 to 6,000 eggs in total. Depending on water temperature, the eggs hatch in about 11 to 26 days.
Why is Doryteuthis pealeii important to fisheries and marine ecosystems?
Longfin squid support commercial fishing along the eastern coast of North America and are managed in U.S. federal waters by NOAA Fisheries and the Mid-Atlantic Fishery Management Council. They are also important prey for marine mammals, seabirds, and predatory fish.
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