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Basking shark (Cetorhinus maximus) — Cetorhinidae

Basking shark

Cetorhinus maximus
Family: Cetorhinidae
EN · Endangered

The Basking shark (Cetorhinus maximus) is a saltwater fish of the family Cetorhinidae that grows up to 1520 cm.

Length
1520 cm
Water
Saltwater
Depth
0.0–2000.0 m
Diet
Carnivore
Behaviour
Small groups
Activity
Diurnal
Body shape
Elongated (eel-like)
Substrate
Open water
Danger
Harmless
Edibility
Not eaten

Description

The basking shark is, after the whale shark, the largest fish in the world; this shark of the family Cetorhinidae reaches over 10 metres. The grey-brown, torpedo-shaped body has a pointed snout, a crescent tail and very long gill slits that almost encircle the head. Despite its size the basking shark is a harmless, slow filter feeder: it swims with its mouth wide open and sieves zooplankton, mainly copepods, from the water with its gill rakers. The species occurs in temperate coastal and ocean waters worldwide, including the north-eastern Atlantic and the Mediterranean, and is often seen at the surface in spring and summer. Through slow reproduction and past hunting for its liver oil it is assessed as Endangered (EN) and is protected.

Frequently asked questions

How do you recognise the Basking shark?

The Basking shark has an elongate, eel-like body, is mainly brown and shows a plain pattern.

Where does the Basking shark live?

The Basking shark lives in the sea (marine waters) and is mostly found around open water.

How big does the Basking shark get?

The Basking shark grows to a maximum of about 1520 cm. On average the species is around 700 cm.

Is the Basking shark dangerous to humans?

No, the Basking shark is harmless to humans.

Is the Basking shark edible?

The Basking shark is not usually eaten.

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All data

Identification

Dutch name
Reuzenhaai verified
English name
Basking shark verified
Scientific name
Cetorhinus maximus
Family
Cetorhinidae
Other names
Basking shark verified

Appearance

Size class
Extra large verified
Max length (cm)
1520.0 verified
Average length (cm)
700.0 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Brown sourced
Pattern
Plain sourced
Tail shape
Crescent (lunate) inferred
Mouth position
Terminal inferred
Lips
Thin inferred
Barbels
No verified
Dorsal fins
Two separate sourced
Dorsal spines
No verified

Habitat & distribution

Water type
Saltwater verified
Substrate
Open water sourced
Min depth (m)
0.0 verified
Max depth (m)
2000.0 verified
Origin
Native verified

Behaviour & biology

Diet
Carnivore verified
Social behaviour
Small groups verified
Territorial
No verified
Activity
Diurnal inferred
Reproduction
Separate sexes verified
Sexual dimorphism
No verified

For anglers

Edibility
Not eaten verified
Fishing method
Strikt beschermd; gericht vissen is verboden. Bewonder de soort vanaf afstand en houd bij het varen ruim afstand van een filterende reuzenhaai. sourced
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless verified

Status & sources

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

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