Sarcastic Fringehead | Oceana
Home / Sarcastic Fringehead

Marine Life Encyclopedia

Ocean Fishes

Sarcastic Fringehead

Neoclinus Blanchardi

Distribution

Temperate latitudes of the northeast Pacific Ocean

ECOSYSTEM/HABITAT

Rocky reefs and nearby soft bottoms

FEEDING HABITS

Foraging predator

TAXONOMY

Order Blenniiformes (blennies), Family Chaenopsidae (tube blennies)

Female sarcastic fringeheads, like all tube blennies, lay their eggs in a males’ shelter, and the males protect them from potential predators and other threats until they hatch. This sexual selection by females drives a system of intense male competition and territoriality. Male sarcastic fringeheads display to each other by opening their very large mouths in the direction of their rivals. The mouth’s intimidating coloration, combined with the extreme nature of it size (which may be as much as four times its closed size) allow the larger male to establish dominance over the smaller. Oftentimes, the rivals’ mouths are thrust very near to each other, sometimes touching. The smaller individual typically surrenders and leaves the area, without the pair actually fighting.

Little is known about the feeding habits of the sarcastic fringehead, but scientists expect that the grossly oversized mouths of the males may negatively affect their ability to feed. Most tube blennies feed on very small planktonic prey, but this species is unable to suction feed. They likely eat a variety of prey. During squid spawning season, sarcastic fringeheads can be observed eating large numbers of squid eggs, a valuable food source for many species.

The sarcastic fringehead is not targeted by fisheries and is not accidentally captured in fisheries targeting other species. Scientists believe this species to be one of least concern – it is not currently at risk of extinction.

Engage Youth with Sailors for the Sea

Oceana joined forces with Sailors for the Sea, an ocean conservation organization dedicated to educating and engaging the world’s boating community. Sailors for the Sea developed the KELP (Kids Environmental Lesson Plans) program to create the next generation of ocean stewards. Click here or below to download hands-on marine science activities for kids.

Kids Environmental Lesson Plans

Additional Resources:

IUCN Red List

Get Involved

Donate Today

SUPPORT OUR WORK TO PROTECT THE OCEANS BY GIVING TODAY

With the support of more than 1 million activists like you, we have already protected nearly 4 million square miles of ocean.

TAKE ACTION NOW

Support policy change for the oceans

Decision-makers need to hear from ocean lovers like you. Make your voice heard!

VISIT OUR ADOPTION CENTER

SYMBOLICALLY ADOPT AN ANIMAL TODAY

Visit our online store to see all the ocean animals you can symbolically adopt, either for yourself or as a gift for someone else.

DOWNLOAD OCEAN ACTIVITIES

HELP KIDS DISCOVER OUR BLUE PLANET

Our free KELP (Kids Environmental Lesson Plans) empower children to learn about and protect our oceans!