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Brown topknot (Notoclinus compressus) — Tripterygiidae

Brown topknot

Notoclinus compressus

The Brown topknot (Notoclinus compressus) is a saltwater fish of the family Tripterygiidae that grows up to 9 cm.

Length
8.5 cm
Water
Saltwater
Depth
0.0–5.0 m
Activity
Diurnal
Body shape
Elongated (eel-like)
Substrate
Sand / mud bottom
Danger
Harmless
Range
Oceania: New Zealand

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Description

The brown topknot is a small clinid (Clinidae) from coastal waters around New Zealand. The species grows to about 8 cm and has an elongate, laterally compressed, green-brown body with a long, continuous dorsal fin and small tufts (cirri) on the head. As a bottom-dweller it lives among weed, seagrass and in tide pools of rocky shores and snaps at small crustaceans and invertebrates. The fish is harmless to humans.

Frequently asked questions

How do you recognise the Brown topknot?

The Brown topknot has an elongate, eel-like body and is mainly brown.

Where does the Brown topknot live?

The Brown topknot lives in the sea (marine waters) and is mostly found around sand or mud bottom. Oceania: New Zealand

How big does the Brown topknot get?

The Brown topknot grows to a maximum of about 9 cm.

Is the Brown topknot dangerous to humans?

No, the Brown topknot is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.

More photos

Brown topknot (Notoclinus compressus) — Tripterygiidae — 2
Shaun (CC BY 4.0) via GBIF — iNaturalist
Brown topknot (Notoclinus compressus) — Tripterygiidae — 3
iNaturalist ((c) Shaun, some rights reserved (CC BY))
Brown topknot (Notoclinus compressus) — Tripterygiidae — 4
iNaturalist ((c) Sarah Milicich, some rights reserved (CC BY-NC))
Brown topknot (Notoclinus compressus) — Tripterygiidae — 5
Luca Davenport-Thomas (CC BY-NC 4.0) via GBIF — iNaturalist
Fin

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All data

Identification

English name
Brown topknot sourced
Scientific name
Notoclinus compressus
Family
Tripterygiidae

Appearance

Size class
Small verified
Max length (cm)
8.5 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Brown sourced
Tail shape
Rounded inferred

Habitat & distribution

Water type
Saltwater sourced
Substrate
Sand / mud bottom sourced
Min depth (m)
0.0 verified
Max depth (m)
5.0 verified
Natural range
Oceania: New Zealand sourced
Origin
Native inferred

Behaviour & biology

Territorial
No inferred
Activity
Diurnal inferred
Reproduction
Separate sexes inferred
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred

For anglers

Fishing method
Small in size and barely an angling target; mostly caught incidentally or as baitfish. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless verified
First aid
This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status. verified

Status & sources

Sources
FishBase via GBIF (DwC-A), CC-BY-NC 4.0

Same genus Notoclinus

More from the family Tripterygiidae

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