Hemitriakis complicofasciata 

Scope: Global
Language: English

Translate page into:

Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Chondrichthyes Carcharhiniformes Triakidae

Scientific Name: Hemitriakis complicofasciata Takahashi & Nakaya, 2004
Common Name(s):
English Ocellate Topeshark, Ornate Topeshark

Assessment Information [top]

Red List Category & Criteria: Data Deficient ver 3.1
Year Published: 2009
Date Assessed: 2008-12-01
Assessor(s): Nakaya, K.
Reviewer(s): Valenti, S.V. & Fowler, S.L. (Shark Red List Authority)
The Ocellate Topeshark (Hemitriakis complicofasciata) is a recently described shark likely to be found in inshore waters at a depth of 90–100 m from Okinawa, Japan to Philippines, including the coast of Taiwan, Province of China. This species is believed to reach around 96 cm TL. Little else is known about this species biology. Ocellate Topeshark is possibly caught as bycatch in gillnet fisheries, but no information is available at this time. Due to the lack of data concerning this species’ biology and interaction with fisheries, it is assessed as Data Deficient, but should be reassessed as more information becomes available.

Geographic Range [top]

Range Description:Northwest Pacific: from Okinawa, Japan to Philippines, including the coast of Taiwan, Province of China (Takahashi and Nakaya 2004).
Countries occurrence:
Japan (Nansei-shoto); Philippines; Taiwan, Province of China (Taiwan, Province of China (main island))
FAO Marine Fishing Areas:
Pacific – northwest; Pacific – western central
Additional data:
Lower depth limit (metres):100
Upper depth limit (metres):90
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:Population size is unknown.
Current Population Trend:Unknown
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:Probably found in inshore waters (Compagno et al. 2005) at 90–100 m depth (Takahashi and Nakaya 2004). Produces five to eight pups per litter. Size at birth is 24 cm total length (TL). Males reach maturity at 76 cm TL and females at 81 cm TL. Maximum size is 96 cm TL (Takahashi and Nakaya 2004).

Threats [top]

Major Threat(s): Possibly a bycatch in gillnet fisheries but no information is available at this time (Nakaya pers. obs. 2007).

Conservation Actions [top]

Conservation Actions: No specific conservation measures in place.

Research is required on abundance, biology, population, threats and capture in fisheries.

Citation: Nakaya, K. 2009. Hemitriakis complicofasciata. The IUCN Red List of Threatened Species 2009: e.T161368A5407735. . Downloaded on 25 May 2018.
Disclaimer: To make use of this information, please check the <Terms of Use>.
Feedback: If you see any errors or have any questions or suggestions on what is shown on this page, please provide us with feedback so that we can correct or extend the information provided