Species Use Database

Species Use Database

Scalloped Hammerhead
Sphyrna lewini

Used for Food and feed in Indian Ocean - eastern, Indian Ocean - western, Pacific - eastern central, Pacific - northeast, Pacific - northwest, Pacific - southeast, Pacific - southwest and Pacific - western central

A. Species

Scientific name: Sphyrna lewini

Common name(s): Scalloped Hammerhead

Global IUCN Red List Threat Status: Critically Endangered

B. Location of use

Geographic location(s):

  • Indian Ocean - eastern
  • Indian Ocean - western
  • Pacific - eastern central
  • Pacific - northeast
  • Pacific - northwest
  • Pacific - southeast
  • Pacific - southwest
  • Pacific - western central

Country/Region:

C. Scale of assessment

Scale of assessment: Regional/Continental/Multi-country level

Name/Details of location: Fiji, Palau, Papua New Guinea, Indonesia, Solomon Islands, Vanuatu, Australia. CITES Non-Party but Competent Authorities: Federated States of Micronesia, Kiribati, Marshall Islands, Tonga. CITES external Territories: New Caledonia

D. Timescale of use

Start Year: 2010

End Year: 2014

E. Information about the use

How is the wild species sourced?: Wild species sourced from its natural habitat

Type of use: Extractive

Practice of use: Targeted fishing harvesting/exploiting or collecting wild aquatic resources

Lethal or non-lethal: Lethal

Does this use involve take/extraction of: The whole entire organism

Purpose(s) of end use: Food and feed

Motivation of use: Basic subsistence, Income generation from trade (individual/household/community) and Largescale commercial exploitation for trade

Is this use legal or illegal?: Some use is legal and some is illegal

F. Information about the Users

Which stakeholder(s) does the record primarily focus on?: not recorded

G. Information about the sustainability of use

Is there evidence that the use is having an impact on the target species?: Wild species sourced from its natural habitat

Has an assessment (or judgement) of sustainability of the use of the target species from an ecological perspective been recorded?: No, sustainability not determined

Details of assessment carried out: CITES Non detriment findings

Brief summary on why the use has been assessed/judged to be sustainable or unsustainable: No stock assessments for the Indo-West Pacific Stock have been done. Due to the lack of data, a stock assessment is currently not feasible; The limited catch data precludes any analyses of catch trends with confidence. A standardised Catch per unit effort analyses of the hammerhead shark complex indicated a large increase in CPUE from 1997-2001 in the WCPO and no consistent rise or fall in the following years. BUT: Reported large declines in hammerhead complex abundance of 60-99% over recent decades in Atlantic and Indo-Pacific (CITES 2013a)

Has an assessment (or judgement) of sustainability of the use of the target species from an economic perspective been recorded?: not recorded

Has an assessment (or judgement) of sustainability of the use of the target species from a social perspective been recorded?: not recorded

Has an assessment (or judgement) of sustainability of the use of the target species from a human health perspective been recorded?: not recorded

Has an assessment (or judgement) of sustainability of the use of the target species from an animal health/welfare perspective been recorded?: not recorded

Recommendations provided in the record to maintain or enhance the sustainability of the use of the target species

Record source

Information about the record source: formal_data_stats

Date of publication/issue/production: 2016-01-01T00:00:00+0000

Source Reference(s):

Simpfendorfer and Rigby: Pacific Non-Detriment Finding Template for the Scalloped Hammerhead, Sphyrna lewini

Date of record entry: 2023-09-19