Fish-Fish
Explorer les poissons

Rock-pool Blenny

Parablennius parvicornis

Rock-pool Blenny (Parablennius parvicornis) is a small intertidal blenny that lives among tide pools and rocky shore crevices. It is chiefly an inshore fish rather than a target angling species, and reliable fishery information is limited.

Saltwater
Rock-pool Blenny reference image
Donald Davesne, cc-by, via Wikimedia Commons. Source: Wikimedia Commons.

Identification points

  • Small elongated blenny with a blunt head and large eyes set high on the head
  • Mottled brown-green body that blends with algae and rock, often with faint vertical bars
  • Continuous dorsal fin running nearly the full length of the back, typical of blennies

Habitat

Shallow rocky intertidal zones, tide pools, kelp-fringed boulders, and crevices on exposed or sheltered shores; often clings close to cover near the waterline.

Bait notes

Not a common game fish. If taken by accident on tiny hooks, it may strike small pieces of prawn, shrimp, or ragworm, and occasionally small soft plastics meant for micro-predators.

Behavior

Benthic and territorial, darting between rocks and algae while picking small crustaceans and other tiny invertebrates from surfaces; often remains hidden except at close range.

Caution

Handle carefully: small blennies have spiny fins and fragile skin, and rock-pool habitats are slippery and hazardous. Check local rules, as some intertidal species may be protected from collection.

Fishing notes

Best approached with ultra-light tackle around tide pools and rock edges if you are observing or sampling; avoid heavy pressure and use very small hooks. Release immediately if caught, since it has little angling value.