Last updated on 12 October 2016

SUMMARY

SUMMARY

IDENTIFICATION

SCIENTIFIC NAME(s)

Sebastes alutus

SPECIES NAME(s)

Pacific ocean perch

Pacific ocean perch is assessed and managed as a single unit in the in the Bering Sea/Aleutian Islands (BSAI), but the stock structure of this species is still not fully understood (Spies and Spencer, 2012; Kamin et al., 2013; Spencer and Ianelli, 2014). Some recent studies indicate a finer scale stock structure exists within the Gulf of Alaska and BSAI (e.g., Palof et al., 2011; Kamin et al., 2013). Research is underway to clarify genetic structure of this species and its relationship to population dynamics (Spencer and Ianelli, 2014).


ANALYSIS

Strengths
  • Regular stock assessments are in place for Pacific ocean perch in both Canadian and U.S. waters
  • Catches in both commercial hook and line and trawl fisheries are well monitored.
  • Total Allowable Catch (TAC) limits are in place and well enforced in U.S. waters.
Weaknesses
  • Early catch history and biomass indices are not available for the period prior to mid-1960s, with most of the age composition data starting in 1978, which is a concern due to the relatively long lived nature of this species.
  • There is a need to improve data collection for discards in this fishery for many jurisdictions.

FISHSOURCE SCORES

Management Quality:

Management Strategy:

8

Managers Compliance:

10

Fishers Compliance:

10

Stock Health:

Current
Health:

10

Future Health:

10


RECOMMENDATIONS

CATCHERS & REGULATORS
  • Start a fishery improvement project to address sustainability issues in this fishery. For advice on starting a FIP, see SFP’s Seafood Industry Guide to FIPs.
  • Communicate to fishery managers that there are sustainability issues in this fishery that may be affecting the sale of products, and request that they comprehensively evaluate and address such issues.
RETAILERS & SUPPLY CHAIN
  • Encourage your supply chain to start a fishery improvement project. For advice on starting a FIP see SFP’s Seafood Industry Guide to FIPs.
  • Work with other suppliers and buyers on a pre-competitive basis to start a supplier roundtable to review improvement needs in this and other similar fisheries, catalyze fishery improvement projects, and monitor progress in improvement efforts.

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
Bering Sea and Aleutian Islands US Bering Sea and Aleutian Islands United States Bottom trawls

Analysis

OVERVIEW

Last updated on 21 July 2012

Strengths
  • Regular stock assessments are in place for Pacific ocean perch in both Canadian and U.S. waters
  • Catches in both commercial hook and line and trawl fisheries are well monitored.
  • Total Allowable Catch (TAC) limits are in place and well enforced in U.S. waters.
Weaknesses
  • Early catch history and biomass indices are not available for the period prior to mid-1960s, with most of the age composition data starting in 1978, which is a concern due to the relatively long lived nature of this species.
  • There is a need to improve data collection for discards in this fishery for many jurisdictions.
RECOMMENDATIONS

Last updated on 12 October 2016

Improvement Recommendations to Catchers & Regulators
  • Start a fishery improvement project to address sustainability issues in this fishery. For advice on starting a FIP, see SFP’s Seafood Industry Guide to FIPs.
  • Communicate to fishery managers that there are sustainability issues in this fishery that may be affecting the sale of products, and request that they comprehensively evaluate and address such issues.
Recommendations to Retailers & Supply Chain
  • Encourage your supply chain to start a fishery improvement project. For advice on starting a FIP see SFP’s Seafood Industry Guide to FIPs.
  • Work with other suppliers and buyers on a pre-competitive basis to start a supplier roundtable to review improvement needs in this and other similar fisheries, catalyze fishery improvement projects, and monitor progress in improvement efforts.

1.STOCK STATUS

STOCK ASSESSMENT

Last updated on 21 July 2012

Stock assessments have been conducted regularly in both U.S. and Canadian waters using catch at age, length-at-age, and age structured models (Edwards et al., 2012; Schnute et al., 2001; Wetrheim 1977; Spencer and Ianelli 2001; Ianelli and Zimmerman 1998; AFSC 2011a,b; DFO 2011; Hamel and Ono 2011; PFMC 2011; Ianelli and Ito 1992).

SCIENTIFIC ADVICE

Last updated on 21 July 2012

Reference Points

Last updated on 21 Jul 2012

Reference points (Source: Hamel and Ono 2011).
Natural Mortality (M): 0.050
SB0 (million mt): 0.066
2010 SPR ratio: 0.261

Reference points (Source: Hamel 2009).
SBmsy = 15112
Fmsy = 0.0406
MSY = 1124

CURRENT STATUS

Last updated on 21 July 2012

The 2011 North Pacific Fisheries Management Council North Pacific Groundfish Stock Assessment and Fishery Evaluation Report suggests that Pacific Ocean Perch (POP) stock in Bering Sea and Aleutian Islands is not overfished (AFSC 2011).

2.MANAGEMENT QUALITY

COMPLIANCE

Last updated on 21 July 2012

The Pacific ocean perch (POP) fish stocks have been well managed with reported catches well below ABC and OFL limits for the years 2010 and 2011 (AFSC 2011a).

3.ENVIRONMENT AND BIODIVERSITY

BYCATCH
ETP Species

Last updated on 21 July 2012

There is limited to very low interactions of AK Bering Sea, Aleutian Islands rockfish trawl gear with PET species, with no documented mortalities of marine mammals in this fisheries (NOAA 2011). Most of the interactions with Marine mammals are under category III (remote likelihood of / no known interactions) (NOAA 2011).

Other Species

Last updated on 21 July 2012

All reported interactions with non-target species and by-catch are monitored through observer programs (NOAA Fisheries). Vessel owner/ operator or fisher must also report incidental injury or mortalities of marine mammals during a fishery operation (NOAA Fisheries 2012).

The National Marine Fisheries Service uses Steller Sea Lion Protection Measures for Alaska Groundfish Fisheries to ensure that groundfish fisheries of Alaska have minimal impact on stellar sea lion populations (Stellar sea lion No-Entry zones and critical habitat areas include a 20 nautical mile buffer area around all major rookeries and haulouts, as well as associated aquatic zones and three offshore foraging areas (See here for more information).

FishSource Scores

MANAGEMENT QUALITY

As calculated for 2012 data.

The score is 8.0.

This measures the F at low biomass as a percentage of the F management target.

The F at low biomass is 0.320 (from management plan). The F management target is 0.630 .

The underlying F at low biomass/F management target for this index is 50.8%.

As calculated for 2012 data.

The score is 10.0.

This measures the Set TAC as a percentage of the ABC.

The Set TAC is 24.7 ('000 t). The ABC is 24.7 ('000 t) .

The underlying Set TAC/ABC for this index is 100%.

As calculated for 2012 data.

The score is 10.0.

This measures the Catch as a percentage of the Set TAC.

The Catch is 18.4 ('000 t). The Set TAC is 24.7 ('000 t) .

The underlying Catch/Set TAC for this index is 74.5%.

STOCK HEALTH:

As calculated for 2012 data.

The score is 10.0.

This measures the SSB as a percentage of the SSB40%.

The SSB is 285 ('000 t). The SSB40% is 184 ('000 t) .

The underlying SSB/SSB40% for this index is 155%.

As calculated for 2012 data.

The score is 10.0.

This measures the F as a percentage of the F management target.

The F is 0.0400 (age-averaged). The F management target is 0.630 .

The underlying F/F management target for this index is 6.35%.

To see data for biomass, please view this site on a desktop.
To see data for catch and tac, please view this site on a desktop.
To see data for fishing mortality, please view this site on a desktop.
No data available for recruitment
No data available for recruitment
To see data for management quality, please view this site on a desktop.
To see data for stock status, please view this site on a desktop.

Download Source Data

Registered users can download the original data file for calculating the scores after logging in. If you wish, you can Register now.

Fishery Improvement Projects (FIPs)

No related FIPs

Certifications

Marine Stewardship Council (MSC)

No related MSC certifications

Sources

Credits
  1. AFSC. 2011a. Appendix A. Stock Assessment and Fishery Evaluation Report for the Groundfish Resources of the Bering Sea/Aleutina Islands Regions, December 2011, 9. Assessment of the Pacific ocean perch stock in the Gulf of Alaska, 72 pages.http://www.afsc.noaa.gov/REFM/docs/2011/GOApop.pdf
  2. AFSC. 2011b. Appendix B, Stock Assessment and fishery evaluation report for the Groundfish Resources of the Gulf of Alaska, December 2011, 50 pages.http://www.afsc.noaa.gov/REFM/docs/2011/GOAintro.pdf
  3. DFO. 2011. Stock assessment for Pacific ocean perch (Sebastes alutus) in Queen Charlotte Sound, British Columbia, Canadian Science Advisory Secretariat, Department of Fisheries and Oceans Canada, 180 pages. http://www.dfo-mpo.gc.ca/Csas-sccs/publications/resdocs-docrech/2011/2011_111-eng.pdf
  4. Hamel, O.S. 2009. Status and Future Prospects for the Pacific Ocean Perch Resource in Waters off Washington and Oregon as Assessed in 2009, Northwest Fisheries Science Center, 58 pages.http://www.pcouncil.org/wp-content/uploads/POP_Assessment_2009_Final_SAFE_version.pdf
  5. Hamel, O.S., Ono, K. 2011. Stock Assessment of Pacific Ocean Perch in Waters off of the U.S. West Coast in 2011, Pacific Fishery Management Council, 168 pageshttp://www.pcouncil.org/wp-content/uploads/Pacific_Ocean_Perch_2011_Assessment.pdf
  6. Kamin, L.M., Palof, K.J., Heifetz, J. and Gharrett, A.J., 2014. Interannual and spatial variation in the population genetic composition of young-of-the-year Pacific ocean perch (Sebastes alutus) in the Gulf of Alaska. Fisheries Oceanography, 23, 1: 1-17.http://dx.doi.org/10.1111/fog.12038
  7. NOAA. 2011. Final 2011 List of Fisheries (LOF), The List of Fisheries (LOF) classifies U.S. commercial fisheries into three Categories according to the level of interactions that result in incidental mortality or serious injury of marine mammals.http://www.nmfs.noaa.gov/pr/interactions/lof/final2011.htm
  8. NOAA Fisheries. 2012. Fisheries Interactions/Protected Species Bycatch, NOAA Fisheries Office of Protected Resources.http://www.nmfs.noaa.gov/pr/interactions/
  9. Palof, K., Heifetz, J. and Gharrett, A., 2011. Geographic structure in Alaskan Pacific ocean perch (Sebastes alutus) indicates limited lifetime dispersal. Marine Biology, 158, 4: 779-792http://dx.doi.org/10.1007/s00227-010-1606-2
  10. PFMC. 2011. Pacific Ocean Perch Stock Assessment Review (STAR) Panel Report, Hotel Deca, Seattle, Washington 20‐24 June 2011, 17 pages.http://www.pcouncil.org/wp-content/uploads/G4a_SUP_ATT2_STAR_POP_SEPT2011BB.pdf
  11. Schnute, J.T., Haigh, R., Krishka, B.A., Starr, P. 2001. Pacific Ocean Perch Assessment for the West Coast of Canada in 2001, Department of Fisheries and Oceans Canada, 96 pages.ftp://ftp.pcouncil.org/pub/GF_STAR_2_2011_POP_PetraleSole/POP_reports_Canada%20assessment%202009.pdf
  12. Spencer, P.D. and Ianelli, J.N. 2010. Assessment of Pacific ocean perch in the Bering Sea/Aleutian Islands. BSAI Pacific Ocean Perch http://www.afsc.noaa.gov/refm/docs/2008/BSAIpop.pdf
  13. Spencer, P.D and Ianelli, J.N., 2014. Assessment of the Pacific ocean perch stock in the Bering Sea/Aleutian Islands. Chapter 12. In: North Pacific Fishery Management Council (ed.) STOCK ASSESSMENT AND FISHERY EVALUATION REPORT FOR THE GROUNDFISH RESOURCES OF THE BERING SEA/ALEUTIAN ISLANDS REGIONS. Anchorage. p. 1329-1394.http://www.afsc.noaa.gov/REFM/Docs/2014/BSAIpop.pdf
  14. Spies, I. and Spencer, P., 2014. Evaluation of stock structure for the Bering Sea/Aleutian Island Other Rockfish complex. September 2014 Plan team draft. Alaska Fisheries Science Center. 22 pp.http://www.afsc.noaa.gov/refm/stocks/plan_team/2014/Sept/BSAI%20Other%20Rockfish%20Stock%20structure%202014.pdf
  15. Westrheim, S.J. 1977. Production and Stock Assessment of Principal Groundfish Stocks off British Columbia, Pacific Biological Station, August 1977, Fisheries & Marine Service Industry Report No. 94, 52 pages.http://www.dfo-mpo.gc.ca/Library/38939.pdf

Additional References and Sources

Edwards, A.M., Starr, P.J. and Haigh, R. 2012. Stock assessment for Pacific ocean perch (Sebastes alutus) in Queen Charlotte Sound, British Columbia. DFO Can. Sci. Advis. Sec. Res. Doc. 2011/111. viii +172 p.

Ianelli, J. N., D. H. Ito. 1991. Stock assessment of Pacific ocean perch (Sebastes alutus) using an explicit age structured model. In Stock assessment and fishery evaluation report for the groundfish resources of the Bering Sea/Aleutian Islands region as projected for 1992 (November 1991), North Pacific Fishery Management Council, 20 pp.

Ianelli, J. N., D. H. Ito. 1992. Pacific ocean perch. In Stock assessment and fishery evaluation report for the groundfish resources of the Bering Sea/Aleutian Islands region as projected for 1993 (November 1992), North Pacific Fishery Management Council, 36 pp.

Ianelli, J.N., Zimmerman, M. 1998. Status and Future for the Pacific Ocean Perch Resource in waters off Washington and Oregon as assessed in 1998, Alaska Fisheries Science Center
National Marine Fisheries Service, October 6, 1998, 61 pages.

Love, M.S, Yoklavich, M.M. and Thorsteinson, L., 2002. The Rockfishes of the Northeast Pacific. University of California Press, Los Angeles. 407 pp.

Spencer, P.D., J.N. Ianelli. 2001. The implementation of an AD Modelbulder catch at age model for Bering Sea/Aleutian Islands Pacific ocean perch. In Stock assessment and fishery evaluation report for the groundfish resources of the Bering Sea/Aleutian Islands region (September 2001), North Pacific Fishery Management Council, 36 pp.

References

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