Profile updated on 5 June 2019

SUMMARY

SUMMARY

IDENTIFICATION

SCIENTIFIC NAME(s)

Alopias pelagicus

SPECIES NAME(s)

Pelagic thresher, Pelagic thresher shark

A study using mtDNA identified two populations of pelagic thresher shark within the Pacific Ocean, considered Evolutionary Significant Units (ESU) (Cardeñosa et al. 2014). One in the eastern and the second in the western Pacific Ocean, with individuals from Hawaii composed of both ESU's (Cardeñosa et al. 2014). A previous study (Trejo 2005) have shown strong population structure between the eastern and western Pacific, indicating limited flow of gene's across the Paciifc

RELATED LINKS:


ANALYSIS

Weaknesses
  • There is no stock wide assessment for this species
  • This species is caught in fisheries that incidentally capture ETP species such as other sharks, seabirds and sea turtles

FISHSOURCE SCORES

Management Quality:

Management Strategy:

NOT YET SCORED

Managers Compliance:

NOT YET SCORED

Fishers Compliance:

NOT YET SCORED

Stock Health:

Current
Health:

NOT YET SCORED

Future Health:

NOT YET SCORED


FIPS

No related FIPs

CERTIFICATIONS

No related MSC fisheries

Fisheries

Within FishSource, the term "fishery" is used to indicate each unique combination of a flag country with a fishing gear, operating within a particular management unit, upon a resource. That resource may have a known biological stock structure and/or may be assessed at another level for practical or jurisdictional reasons. A fishery is the finest scale of resolution captured in FishSource profiles, as it is generally the scale at which sustainability can most fairly and practically be evaluated.

ASSESSMENT UNIT MANAGEMENT UNIT FLAG COUNTRY FISHING GEAR
Eastern Pacific Ocean Costa Rica Costa Rica Longlines
Ecuador Ecuador Longlines

Analysis

OVERVIEW

Weaknesses
  • There is no stock wide assessment for this species
  • This species is caught in fisheries that incidentally capture ETP species such as other sharks, seabirds and sea turtles

1.STOCK STATUS

STOCK ASSESSMENT

No stock wide assessment of pelagic thresher sharks in the Pacific Ocean has been conducted. Some regional assessments have been conducted. For example, an assessment of pelagic thresher sharks along the US west coast was conducted by the National Marine Fisheries Service in 2018 (Teo et al. 2018).

CURRENT STATUS

The International Union for the Conservation of Nature (IUCN) considers this species Vulnerable with a decreasing population trend (Reardon et al. 2009).

2.MANAGEMENT QUALITY

3.ENVIRONMENT AND BIODIVERSITY

FishSource Scores

MANAGEMENT QUALITY

STOCK HEALTH:

No data available
No data available
No data available
No data available
No data available
No data available
No data available
No data available
No data available
No data available
No data available
No data available

Fishery Improvement Projects (FIPs)

No related FIPs

Certifications

Marine Stewardship Council (MSC)

No related MSC certifications

Sources

References

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    Pelagic thresher - Eastern Pacific Ocean, Costa Rica, Costa Rica, Longlines

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