Three Decades of f De Debris Da Data: What regular cleanup - - PowerPoint PPT Presentation

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Three Decades of f De Debris Da Data: What regular cleanup - - PowerPoint PPT Presentation

Sep 01, 2023 444 likes •707 views

Three Decades of f De Debris Da Data: What regular cleanup activities reveal about marine debris recovery efforts in Hawaii Megan R. . Lamson, , Barbara Wie iedner, Wil illiam Gil ilmartin, , Carl Berg, g, Hannah Bernard, Sc

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Three Decades of f De Debris Da Data:

What regular cleanup activities reveal about marine debris recovery efforts in Hawai‘i

Megan R. . Lamson, , Barbara Wie iedner, Wil illiam Gil ilmartin, , Carl Berg, g, Hannah Bernard, Sc Scott t Mc McCubbins, Stacey Breining, g, Cy Cynthia We Welti an and Kevin Br Brinck

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Effic icient

Definition per Dictionary.com (adjective)

  • 1. performing or functioning in the best possible

manner with the least waste of time and effort; having and using requisite knowledge, skill, and industry; competent; capable: a reliable, efficient assistant.

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  • J. Viezbicke / NOAA

US FWS

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Collectively from 2003 - 2017, HWF and SRK have removed >793,4 ,406 lbs. . of f de debris (359.8 .8 Mt) from the shores of Hawai‘i Island (15 yrs.), Kaua‘i (11 yrs.) and Maui (4 yrs.).

Luu Kai Photography

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Marine Debris Removal – Summary Stats

Hawai‘i, 461529 lbs., 209.3 mt, 58% Maui, 31799 lbs., 14.42 mt, 4% Kaua‘i, 300078 lbs., 136.1 mt, 38%

Hawai'i Wildlife Fund & Surfrider Foundation Kaua'i

(2016 – 2017*) (2003 – 2017) (2013 – 2017*)

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Op Optimal efficiency cy?

Weight of non-net debris (lbs.) Participants per mile of beach (log scale)

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50 100 150 200 250 300 350 400 20,000 40,000 60,000 80,000 100,000 120,000 140,000 2003 2005 2006 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017

Total Weight Removed by Year vs Cleanup Count (Lbs.)

Hawai'i Kauai Count (H) Count (K)

Hawai‘i Island Kaua‘i

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20 40 60 80 100 120 5 15 25 35 45 55 65 75 85

Lbs. Group

Average Weight Collected Per Person by Group Size (Lbs.)

Hawai‘i Island Kaua‘i

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Beach cleanups

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Net Patrols

  • M. Connolly / UHH MOP
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Net Patrols

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Average Weight Collected by (wo)Man-Hour

20 40 60 80 100 120 140 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017

Hawai‘i Beach Cleanup Kaua‘i Beach Cleanup Hawai‘i Net Patrol Kaua‘i Net Patrol

  • Lbs. Removed
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Volunteer Effort (% Time Spent on Debris Activities)

Hawai‘i Island (BC) Kaua‘i (NP)

CLEANUP (74%)

CLEANUP (31%)

DRIVING / HAULING (50%)

Hauling (11%) Sorting / recycling / dump (13%) Weighing (12%)

  • Misc. (6%)
  • Admin. (3%)
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Net Patrols vs. Beach Cleanups

Participants

  • Lbs. / Event
  • Lbs. / Man Hour

HWF Beach Cleanups

28 1122.8 7.2

HWF Net Patrols

4 735.4 32.4

SRK Beach Cleanups

33 764.7 11.3

SRK Net Patrols

4 403.3 64.8

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Outreach

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Pre Preferred Disposal Hi Hierarchy

REUSE

RECYCLE

Art & Research

Landfill

Pull Above Tideline Burn

Do Nothing

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Recycling Options – Hawai‘i

(2014 - 2015) (2017 – 2018?) (… 2018?)

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Studio KCA

Pam Longobardi

Reuse / Debris Art Projects

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Future Projects

Above photo from James King-Holmes / Science Source ByFusion / Inhabit.com

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Mahalo / acknowledgements

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Photo by Noni Sanford

megan@wildhawaii.org

HWF Debris Hotline 808-769-7629

surfriderkauai@gmail.com

Surfrider Hotline 808-635-2593