Red Swimming Crab

Where and when

Where it has been recorded

Worldwide

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Best months

Worldwide (open data)

January: 23 records
February: 11 records
March: 15 records
April: 11 records
May: 44 records
June: 10 records
July: 16 records
August: 10 records
September: 10 records
October: 25 records
November: 10 records
December: 13 records

Depth and water temperature

Depth

Mostly recorded at 23–192 m · Deepest record: 976.5 m

0–10 m: 2 records
10–20 m: 5 records
20–30 m: 12 records
30–40 m: 12 records
40–50 m: 8 records
50–60 m: 15 records
60–70 m: 9 records
70–80 m: 15 records
80–90 m: 9 records
90–100 m: 7 records
100–110 m: 10 records
110+ m: 46 records

Water temperature

Recorded in surface water of 8–18 °C

6–8 °C: 1 records
8–10 °C: 17 records
10–12 °C: 43 records
12–14 °C: 66 records
14–16 °C: 8 records
16–18 °C: 17 records
18–20 °C: 2 records

Photos

(c) Luca Davenport-Thomas, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Javier, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Kelvin Perrie, some rights reserved (CC BY) · CC BY · iNaturalist
(c) wild_wind, some rights reserved (CC BY) · CC BY · iNaturalist
(c) John Barkla, some rights reserved (CC BY) · CC BY · iNaturalist
(c) John Barkla, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Luca Davenport-Thomas, some rights reserved (CC BY) · CC BY · iNaturalist

Names and classification

English: Red Swimming Crab

Other scientific names: Portunus antarcticus

Similar species

rough rock crab
Nectocarcinus integrifrons
Velvet Crab
Nectocarcinus tuberculosus
Nectocarcinus bennetti
Nectocarcinus pubescens
Nectocarcinus spinifrons
Chaceon albus

Sources and credits

Names and taxonomy: WoRMS (CC BY 4.0) and the GBIF Backbone (CC BY 4.0). Photos: iNaturalist observers, each under the licence shown (CC0, CC BY or CC BY-SA).

Depth, temperature, months and maps: records from OBIS and GBIF under CC0 or CC BY.
Conservation status as published by GBIF (IUCN Red List).
185 open-data records from 1907 to 2018.
Species data updated November 4, 2026.