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Stock assessment method: CMSY By Jessika Woroniak At QuantitativeAquatics May 30 th 2019

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Page 1: Stock assessment method: CMSY - q-quatics.org€¦ · Microsoft PowerPoint - Ppt0000002.ppt [Read-Only] Author: JGlorioso Created Date: 6/10/2019 2:18:43 PM

Stock assessment method: CMSY

By Jessika WoroniakAt Quantitative‐Aquatics May 30th 2019

Page 2: Stock assessment method: CMSY - q-quatics.org€¦ · Microsoft PowerPoint - Ppt0000002.ppt [Read-Only] Author: JGlorioso Created Date: 6/10/2019 2:18:43 PM

General overview:

1. Brief description of the CMSY method

2. CMSY project ‐ what has been done

3. CMSY project ‐ what we are doing nowImproving the analysesBuilding a database for Relative Biomass

4. CMSY on the web

5. Global Fishing Index

Page 3: Stock assessment method: CMSY - q-quatics.org€¦ · Microsoft PowerPoint - Ppt0000002.ppt [Read-Only] Author: JGlorioso Created Date: 6/10/2019 2:18:43 PM

CMSY – Catch Maximum Sustainable Yield

CMSY toolINPUTS OUTPUTS

• Catch timeseries• Resilience• (Stock health indicator)

Fisheries management data•msy•rmax•k•Stock biomass•Exploitation rate

Page 4: Stock assessment method: CMSY - q-quatics.org€¦ · Microsoft PowerPoint - Ppt0000002.ppt [Read-Only] Author: JGlorioso Created Date: 6/10/2019 2:18:43 PM

Lethrinus miniatus

Trumpet emperoron the Great Barrier Reef

MEs: Torres Strait Northern Great Barrier Reef & Central and Southern Great Barrier Reef & Coral Sea

Page 5: Stock assessment method: CMSY - q-quatics.org€¦ · Microsoft PowerPoint - Ppt0000002.ppt [Read-Only] Author: JGlorioso Created Date: 6/10/2019 2:18:43 PM
Page 6: Stock assessment method: CMSY - q-quatics.org€¦ · Microsoft PowerPoint - Ppt0000002.ppt [Read-Only] Author: JGlorioso Created Date: 6/10/2019 2:18:43 PM

CMSY – Catch Maximum Sustainable Yield

CMSY toolINPUTS OUTPUTS

• Catch timeseries• Resilience

Fisheries management data•msy•rmax•k•Stock biomass•Exploitation rate

• (Stock health indicator)

Indication of relative biomass:CPUEBiomassSpawning stock biomassB/Bmsy or B/k…

Page 7: Stock assessment method: CMSY - q-quatics.org€¦ · Microsoft PowerPoint - Ppt0000002.ppt [Read-Only] Author: JGlorioso Created Date: 6/10/2019 2:18:43 PM

Lethrinus miniatus

Trumpet emperoron the Great Barrier Reef

MEs: Torres Strait Northern Great Barrier Reef & Central and Southern Great Barrier Reef & Coral Sea

Page 8: Stock assessment method: CMSY - q-quatics.org€¦ · Microsoft PowerPoint - Ppt0000002.ppt [Read-Only] Author: JGlorioso Created Date: 6/10/2019 2:18:43 PM
Page 9: Stock assessment method: CMSY - q-quatics.org€¦ · Microsoft PowerPoint - Ppt0000002.ppt [Read-Only] Author: JGlorioso Created Date: 6/10/2019 2:18:43 PM

2. What has been done.

Page 10: Stock assessment method: CMSY - q-quatics.org€¦ · Microsoft PowerPoint - Ppt0000002.ppt [Read-Only] Author: JGlorioso Created Date: 6/10/2019 2:18:43 PM

Marine Ecoregions of the world (MEOW or ME)

232 MEs218 Countries

Page 11: Stock assessment method: CMSY - q-quatics.org€¦ · Microsoft PowerPoint - Ppt0000002.ppt [Read-Only] Author: JGlorioso Created Date: 6/10/2019 2:18:43 PM

Marine Ecoregions of the world (MEOW or ME)

EEZ ME

Page 12: Stock assessment method: CMSY - q-quatics.org€¦ · Microsoft PowerPoint - Ppt0000002.ppt [Read-Only] Author: JGlorioso Created Date: 6/10/2019 2:18:43 PM

1320 Stocks

483 Species

Palomares et  al. (2018) A preliminary global assessment of the status of exploited marine fish and invertebrate populations

Page 13: Stock assessment method: CMSY - q-quatics.org€¦ · Microsoft PowerPoint - Ppt0000002.ppt [Read-Only] Author: JGlorioso Created Date: 6/10/2019 2:18:43 PM

Palomares et  al. (In press) Biomass time series trends of fish populations in marine ecoregions, climatic zones and ocean basins

Page 14: Stock assessment method: CMSY - q-quatics.org€¦ · Microsoft PowerPoint - Ppt0000002.ppt [Read-Only] Author: JGlorioso Created Date: 6/10/2019 2:18:43 PM

Palomares et  al. (In review) Biomass time series trends of fish populations in marine ecoregions, climatic zones and ocean basins

Page 15: Stock assessment method: CMSY - q-quatics.org€¦ · Microsoft PowerPoint - Ppt0000002.ppt [Read-Only] Author: JGlorioso Created Date: 6/10/2019 2:18:43 PM

3. What we are doing now.

Improving our results by including external data 

&Building a relative biomass database

Page 16: Stock assessment method: CMSY - q-quatics.org€¦ · Microsoft PowerPoint - Ppt0000002.ppt [Read-Only] Author: JGlorioso Created Date: 6/10/2019 2:18:43 PM

4. CMSY results on the website

Page 17: Stock assessment method: CMSY - q-quatics.org€¦ · Microsoft PowerPoint - Ppt0000002.ppt [Read-Only] Author: JGlorioso Created Date: 6/10/2019 2:18:43 PM

CMSY results on the website

BiomassCatchExploitation rateAll

Page 18: Stock assessment method: CMSY - q-quatics.org€¦ · Microsoft PowerPoint - Ppt0000002.ppt [Read-Only] Author: JGlorioso Created Date: 6/10/2019 2:18:43 PM

CMSY results on the website

Page 19: Stock assessment method: CMSY - q-quatics.org€¦ · Microsoft PowerPoint - Ppt0000002.ppt [Read-Only] Author: JGlorioso Created Date: 6/10/2019 2:18:43 PM

5. Global Fishing Index (GFI)Project in partnership with the Minderoo FoundationFlourishing Oceans umbrella:

“A flourishing ocean is one that can withstand a changing climate and increasing human pressures. It’s healthy, resilient, free from pollution 

with a plentiful biomass of fished species.Our key objective is to return our oceans to a flourishing state by eliminating overfishing and marine pollution and facilitating world 

class research.”

Page 20: Stock assessment method: CMSY - q-quatics.org€¦ · Microsoft PowerPoint - Ppt0000002.ppt [Read-Only] Author: JGlorioso Created Date: 6/10/2019 2:18:43 PM

Thank you