Robust Smallmouth

Nansenia ardesiaca

Fish
IUCN: Not evaluated

Usual depth392–765 m
Water temperature15–29 °C
Best monthsFebruary and November
How commonRare

All species

Where and when

Where it has been recorded

Worldwide

Loading the map

Best months

Worldwide (open data)

January: 0 records
February: 7 records
March: 0 records
April: 6 records
May: 2 records
June: 6 records
July: 1 records
August: 3 records
September: 2 records
October: 5 records
November: 11 records
December: 1 records

Depth and water temperature

Depth

Mostly recorded at 392–765 m · Deepest record: 956 m

320–330 m: 1 records
330–340 m: 0 records
340–350 m: 0 records
350–360 m: 0 records
360–370 m: 1 records
370–380 m: 0 records
380–390 m: 1 records
390–400 m: 1 records
400–410 m: 0 records
410–420 m: 3 records
420–430 m: 2 records
430+ m: 30 records

Water temperature

Recorded in surface water of 15–29 °C

14–16 °C: 4 records
16–18 °C: 3 records
18–20 °C: 1 records
20–22 °C: 10 records
22–24 °C: 11 records
24–26 °C: 2 records
26–28 °C: 5 records
28–30 °C: 9 records

Names and classification

English: Robust Smallmouth

Names in 2 more languages

Japanese: Ginzakeiwashi, ギンザケイワシ
Simplified Chinese: 兔鮭, 南氏魚, 南氏魚(兔鮭)

Other scientific names: Nansenia robusta, Nansenia tanakai

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).
100 open-data records from 1909 to 2011.

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