Damselfish species density estimates obtained from remotely operated vehicle (ROV) footage from natural and artificial reef sites in the northern Gulf of Mexico from 2018-05-14 to 2019-11-21

Remotely operated vehicle (ROV) footage was used to obtain density (fish per 100m2) estimates of damselfish observed on natural and artificial reef sites located in the northern Gulf of Mexico from 2018-05-14 to 2019-11-21 aboard charter fishing vessels. The non-native regal demoiselle was first sighted on artificial reefs in August 2018. Dataset includes estimated densities of regals along with a suite of other damselfish to document their expansion onto northern Gulf of Mexico reef sites.