Overview

Distribution

Range Description

This species is known from the Indo-west Pacific and East Africa. It ranges from: Kenya to Cape Province, Madagascar to the Mauritius-Seychelles Ridge, from Korea and Japan, to the South China Sea including Taiwan, Viet Nam, the Philippines, and Western Australia (Holthuis 1991).
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This species is found on soft sediments at a depth range of 37 - 400 m (Holthuis 1991).

Systems
  • Marine
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Depth range based on 5 specimens in 1 taxon.
Water temperature and chemistry ranges based on 3 samples.

Environmental ranges
  Depth range (m): 35 - 203.5
  Temperature range (°C): 15.348 - 26.692
  Nitrate (umol/L): 2.522 - 21.401
  Salinity (PPS): 33.548 - 34.889
  Oxygen (ml/l): 2.157 - 4.567
  Phosphate (umol/l): 0.271 - 1.621
  Silicate (umol/l): 9.586 - 28.637

Graphical representation

Depth range (m): 35 - 203.5

Temperature range (°C): 15.348 - 26.692

Nitrate (umol/L): 2.522 - 21.401

Salinity (PPS): 33.548 - 34.889

Oxygen (ml/l): 2.157 - 4.567

Phosphate (umol/l): 0.271 - 1.621

Silicate (umol/l): 9.586 - 28.637
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Dispersal

Depth range

37 to 400m depth
  • Holthuis, L.B. 1991. FAO species catalogue. Vol 13. Marine lobsters of the world. An annotated and illustrated catalogue of species of interest to fisheries known to date. FAO fisheries Synopsis. 125 (13):292 p.
Creative Commons Attribution 3.0 (CC BY 3.0)

© WoRMS for SMEBD

Source: World Register of Marine Species

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Molecular Biology and Genetics

Molecular Biology

Barcode data: Ibacus novemdentatus

The following is a representative barcode sequence, the centroid of all available sequences for this species.


No available public DNA sequences.

Download FASTA File
Creative Commons Attribution 3.0 (CC BY 3.0)

© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Statistics of barcoding coverage: Ibacus novemdentatus

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 1
Specimens with Barcodes: 1
Species With Barcodes: 1
Creative Commons Attribution 3.0 (CC BY 3.0)

© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2011

Assessor/s
MacDiarmid, A., Cockcroft, A. & Butler, M.

Reviewer/s
Collen, B., Livingstone, S. & Richman, N.

Contributor/s
Batchelor, A., De Silva, R., Dyer, E., Kasthala, G., Lutz, M.L., McGuinness, S., Milligan, H.T., Soulsby, A.-M. & Whitton, F.

Justification
Ibacus novemdentus has been assessed as Least Concern due its wide distribution. While this species is harvested as by-catch, it is not taken across its entire range and is not thought to pose a significant threat to the population at this time.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Population

Population
There is no population information available. This species is caught as by-catch throughout its range.

The combined landings of this species and I. ciliatus reported for Taiwan, are as follows (tonnes):
1989 - 663; 1990 - 310; 1991 - 389; 1992 - 514; 1993 - 456; 1994 - 236; 1995 - 1,224; 1996 - 1,115; 1997 - 642; 1997 - 642; 1998 - 696; 1999 - 676; 2000 - 1,600; 2001 - 1,607; 2002 - 1,005; 2003 - 1,637; 2004 - 1,596; 2005 - 1,553; 2006 - 1,570 (FISHSTAT Plus 2000). Further species specific information is needed on whether the increases or decreases in the landings reflect changes in fishing effort.

Population Trend
Unknown
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Threats

Major Threats
This species is harvested for food in Korea, Taiwan and Japan and is sold fresh in local markets, where it is taken by trawlers and long line (Holthuis 1991).

There is no targeted fishery for this species in the Western Indian Ocean, although it is common in trawls, with numbers as high as 22.6 kg per hour (Ivanov and Krylov 1980). The by-catch of this species is not thought to pose a significant threat to the population at this time.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Management

Conservation Actions

Conservation Actions
There are no species-specific conservation measures in place for this species.

Further research is needed on the extent of this fishery, with data on fishing effort and landings.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Disclaimer

EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

To request an improvement, please leave a comment on the page. Thank you!