Fish identification archive / Corky Sea Finger

Corky Sea Finger

Briareum asbestinum

Fun facts for your next surface interval

It lacks a central supporting axis. [source]
Its rods do not branch. [source]
A rod looks much thicker when its long polyps are extended. [source]

Florida and local context

Florent Charpin’s individual photograph page identifies Briareum asbestinum and explicitly places that photograph at Key Largo, Florida.

A documented past record does not establish present abundance or guarantee an encounter.

Sources: Biology or local occurrence reference

How to recognize this animal

One or several upright, unbranched rods rise from a shared encrusting base. Long extended polyps give the rods a furry outline.

Sources: Biology or local occurrence reference

Size and life stages

The field guide reports 0.5 to 2 ft. (15 to 60 cm). Its measurement axis and sampling scope are not specified, so this is not presented as a verified maximum or life-stage range.

Sources: Biology or local occurrence reference

Habitat and where to look

Found in shallow reef environments in the NSU account.

Sources: Biology or local occurrence reference

Range and local context

The local field guide lists Caribbean, Bahamas, Florida. The corridor evidence is a historical record from Key Largo, Florida, not a survey of present distribution.

Sources: Biology or local occurrence reference

What is on the menu?

Coral polyps use tentacles and stinging cells to capture food. NOAA also describes collection of fine organic particles by many corals. This is general coral feeding context; no species-specific prey list, feeding rate or balance of energy sources is asserted.

Sources: Biology or local occurrence reference

Daily habits and behavior

Extended polyps make a rod appear much thicker than it does after they withdraw.

Sources: Biology or local occurrence reference

Mating and the next generation

Species-specific reproductive details and a local spawning calendar were not verified in the recovered evidence.

Look-alikes and identification traps

Briareum polyanthes forms knobby encrustations, often over other octocorals. Compare the upright rods and shared base.

Sources: Biology or local occurrence reference

Observe without disturbing

Maintain buoyancy and distance. Do not touch, feed, collect, turn over, detach or reposition the animal or its substrate for a photograph. A historical locality record is not permission to harvest.

Harvest, protection and eating safety

Do not harvest (CC guidance)

CC means conservation and common sense. Leave this animal in place; do not collect, spear, kill or retain it. This is conservation guidance, not a claim that all harvest is legally prohibited. Independent statutory rules and unresolved legal questions remain separate below.

Separate legal assessment retained:

Unknown: exact harvest rules need verification

Exact species and jurisdiction clearance is unresolved. Unknown is not a protected or prohibited classification.

This color is a qualified summary, not permission to collect or a guarantee that a particular animal is safe to eat.

Can it be hunted or harvested?

Briareum asbestinum has encrusting and upright growth forms. Encrusting octocorals are prohibited; a common name or photo does not resolve legal form coverage. Do not apply an erect-octocoral allowance without verification.

Florida seasons and areas

No affirmative annual season or current-trip openness is established. Check exact mapped boundaries before any take. Blue Heron Bridge designated dive-site waters prohibit marine-life collection, not all Palm Beach County fishing. Biscayne ornamental collection requires a superintendent collecting permit; its mapped seasonal fishing/possession closure runs March 1–May 31, effective March 2026, with properly stowed continuous transit excepted. Pennekamp protects specimens and coral, prohibits tropical-fish collection and spearfishing, and allows fishing only under its designated-area rules; it is not permission to collect ornamental invertebrates. Key Largo Management Area prohibits taking coral and other marine invertebrates. Its exceptions are commercial spiny-lobster and stone-crab trapping and recreational spiny-lobster hand/hand-gear harvest under applicable rules, not recreational collection of the crabs or other taxa here. Sanctuary Preservation Areas prohibit collection and fishing subject only to expressly stated exceptions. These site rules do not establish a corridor-wide prohibition.

Can it be speared?

Species-specific spearing clearance remains unverified. FWC restricts spearfishing near public swimming beaches, fishing piers/bridges and jetties, and in state parks. The Long Key-north Monroe restriction concerns state waters; Key Largo Management Area separately prohibits spearfishing. Federal location alone is not clearance.

Is it safe to eat?

No exact-species, site-specific food-safety clearance or meal frequency was verified. Legal take does not establish safety; some marine toxins survive cooking and freezing. Check current Florida Health advice and shellfish-area status where relevant. No dated, species-matched local menu evidence was verified; recipes remain disabled.

This review covers the Vero Beach–Key Largo Atlantic corridor: Indian River, St. Lucie, Martin, Palm Beach, Broward, Miami-Dade and Monroe counties. Florida Atlantic state waters and South Atlantic federal waters are distinct jurisdictions. Do not extend a state-water season tag to federal waters or transfer Atlantic rules to Gulf-side Keys waters. Park and sanctuary boundaries can override a species allowance.

Before you act: Confirm the species, date, exact management area, state or federal waters, gear, licenses and current local closures. A local occurrence record never grants permission to take an animal.

Official rules and health guidance

Reviewed 2026-11-11. Rules and advisories can change; check the linked authorities before acting.

Identification and source cautions

Reconstructed after workspace loss; new independent source review required.
Local photos establish historical occurrence only; they were not independently reidentified.
Unverified reproductive and feeding details are deliberately left unknown.

Sources and review

Reconstructed 2026-11-11; independent biology review pending. Photographs on cited sites are reference material and are not reproduced here.

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