Siganus rivulatus

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	CHORDATA	ACTINOPTERYGII	PERCIFORMES	SIGANIDAE

Scientific Name:

Siganus rivulatus

Species Authority:

Forsskål, 1775

Common Name/s:

English	–	Marbled Spinefoot, Rivulated rabbitfish
French	–	Cordonnier blanc
Spanish	–	Sigano jaspeado, Siguro

Synonym/s:

Amphacanthus rivulata (Forrskål, 1775)

Amphacanthus sigan Klunzinger, 1871

Amphacanthus siganus (Forsskål, 1775)

Scarus rivulatus (Forsskål, 1775)

Scarus siganus Forsskål, 1775

Siganus siganus (Forsskål, 1775)

Teuthis rivulata (Forrskål, 1775)

Teuthis rivulatus (Forsskål, 1775)

Teuthis sigan (Klunzinger, 1871)

Teuthis sigana (Forsskål, 1775)

Teuthis siganus (Forsskål, 1775)

Assessment Information [top]

Red List Category & Criteria:	Least Concern ver 3.1
Year Published:	2010
Assessor/s:	Fricke, R.
Reviewer/s:	Collen, B., Richman, N., Beresford, A., Chenery, A. & Ram, M.
Contributor/s:	De Silva, R., Milligan, H., Lutz, M., Batchelor, A., Jopling, B., Kemp, K., Lewis, S., Lintott, P., Sears, J., Wilson, P. & Smith, J. and Livingston, F.
Justification: Siganus rivulatus has been assessed as Least Concern. Over the last century this species has expanded its range from the Red Sea up into the Mediterranean. This species is one of the most abundant species in parts of its range. Despite harvesting as a food source there are no reported declines in the population of this species. Monitoring of the harvest levels of this species is needed to ensure that continued

Geographic Range [top]

Range Description:	The original distribution of Siganus rivulatus ranged from South Africa to the Red Sea, including Madagascar, the Comoros and Seychelles. The distribution of this species has spread to the eastern Mediterranean via the Suez Canal from Egypt, to Libya and Greece. This species has also been recorded from Malta.
Countries:	Native: Comoros; Djibouti; Egypt; Eritrea; Madagascar; Mozambique; Saudi Arabia; Seychelles; Somalia; South Africa; Sudan; Yemen Introduced: Cyprus; Greece; Israel; Lebanon; Libya; Malta; Syrian Arab Republic; Turkey
FAO Marine Fishing Areas:	Introduced: Indian Ocean – western; Mediterranean and Black Sea
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population:	Siganus rivulatus is a common fish in the eastern Mediterranean (Kuiter and Debelius 2001). This is one of the most abundant species in the Levantine rocky shore area off Turkey (Golani and Ben-Tuvia 1995).
Population Trend:	Unknown

Habitat and Ecology [top]

Habitat and Ecology:	Siganus rivulatus is found in subtropical climates and feeds mainly on green algae. This species forms schools of about 50 to several hundred individuals, in sheltered bays over rocky/ algal covered bottoms to a maximum depth of 60 m. This species is also found in the vicinity of coral reefs.
Systems:	Marine

Threats [top]

Major Threat(s):	This species is harvested throughout much of its range and forms an important component of many artisinal fisheries. It is typically harvested using beach seines, gill nets, and occasionally by trawling. However, there are no reported significant declines in the subpopulations. There are no separate catch statistics available for this species. Landings are combined with other siganid species. In a few parts of this species range, it is being infected with the bacteria Mycobacterium marinum. However, infection mainly occurs in individuals that have become trapped in aquaculture cages where they are exposed to already infected individuals (Diamant et al. 2000).

Major Threat(s):

This species is harvested throughout much of its range and forms an important component of many artisinal fisheries. It is typically harvested using beach seines, gill nets, and occasionally by trawling. However, there are no reported significant declines in the subpopulations. There are no separate catch statistics available for this species. Landings are combined with other siganid species.

In a few parts of this species range, it is being infected with the bacteria Mycobacterium marinum. However, infection mainly occurs in individuals that have become trapped in aquaculture cages where they are exposed to already infected individuals (Diamant et al. 2000).

Conservation Actions [top]

Conservation Actions:	Siganus rivulatus is farmed for human consumption and this reduces pressure on wild stocks of this species. The distribution of this species coincides with a number of marine protected areas affording this species some protection from harvesting. Monitoring and further research of the harvest levels and biology of this species is needed.

Conservation Actions:

Siganus rivulatus is farmed for human consumption and this reduces pressure on wild stocks of this species. The distribution of this species coincides with a number of marine protected areas affording this species some protection from harvesting.

Monitoring and further research of the harvest levels and biology of this species is needed.

Citation:	Fricke, R. 2010. Siganus rivulatus. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 20 June 2013.
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