Seaweed Blenny

Entomacrodus marmoratus

The Seaweed Blenny, also known as the marbled blenny, is a small fish endemic to the rocky reefs of Hawaii. It features a long, narrow body reaching up to 15.2 cm in length, with dark skin adorned with white spots and distinctive 'eyelashes' above its eyes. This species is well adapted to its environment, using its fins to jump out of the water and navigate tide pools. Divers can spot these blennies in shallow, rocky areas along the Hawaiian coast, typically at depths of up to 6 meters. The Seaweed Blenny is a benthic fish, often found dwelling in holes and crevices to escape heavy wave action. It primarily feeds on algae, detritus, and small invertebrates, making it a key player in the reef's ecosystem. The blenny is oviparous, laying adhesive eggs on the seabed, which are attached to the substrate with a sticky base. The larvae are planktonic, drifting in the open water near the coast. An encounter with the Seaweed Blenny offers a glimpse into its unique behavior and habitat. Divers may observe it grazing on algae or darting into crevices. The species is classified as Least Concern by the IUCN.