Exhibit E Recreational Abalone Fishery Management
March 16th, 2018
Scott Groth, Pink Shrimp/ South Coast Shellfish Project Leader Steve Rumrill, Shellfish Program Leader
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Exhibit E Recreational Abalone Fishery Management March 16 th , - - PowerPoint PPT Presentation
Exhibit E Recreational Abalone Fishery Management March 16 th , 2018 Scott Groth, Pink Shrimp/ South Coast Shellfish Project Leader Steve Rumrill, Shellfish Program Leader 1 Why are we here? Issue at hand: Consider management options for
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Red abalone in a crevice
Red abalone amongst red sea urchins
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– Sedentary
– Only live in shallow kelp beds
– Tight aggregations critical – Short larval period (local)
~ 15 years to minimum size Maximum age 35-54 years
Two red abalone
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Source: CDFG, 2003
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Commercially caught flat abalone 2001-2008 Recreational red abalone harvest- 1960’s Photo: Eugene Heflin
Depoe Bay Charleston Port Orford Gold Beach Brookings
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– Added free harvest permit
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– South Coast – Shallow kelp beds
50% SCUBA 28% Free dive 22% Shore pick
~ 300/ year
~ 189/ year (2007-2016)
Depoe Bay Charleston Port Orford Gold Beach Brookings
SCUBA, 50% Free dive, 28% Shore pick, 22%
~ 25,000/ year ~ 239,000/ year (2002-2015) No SCUBA allowed
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success
detecting changes using fishery data
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0.44 0.15 0.03 0.00 0.10 0.20 0.30 0.40 0.50 California (2012-2016) California (2017) Oregon (2015) Red abalone density/m²
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0.3 abalone/m² CA fishery closure trigger (ARMP) 0.2- 0.15 abalone/m² Vulnerable to collapse (Shepard and Partington, 1995)
Principal stock, fishing, and science
Oregon
Crescent city, CA
Mendocino to Channel Islands, CA
– purple sea urchins – sea star wasting syndrome
Orford Reef 2014, lots of kelp Orford Reef 2016, little kelp
50 100 150 200 250 300 350 1996 1998 2000 2002 2004 2006 2008 2010 2012 2014 2016
# of permits
Rock scallops added Shellfish license
Permits
50 100 150 200 250 1996 1998 2000 2002 2004 2006 2008 2010 2012 2014 2016
# abalone
Harvest
– Description of suspension/ current problems – Questionnaire to understand what works for harvesters
fishery rules, status quo)
– Most prefer to continue fishery with alternate rules
– Most prefer to reduced annual take
Alternate Fishery Rules 65% Closure/ Suspension 27% Defer to ODFW 4% Status quo 4%
– Surveys results “off the charts”
– Historic high, likely to increase further
Pros: 1. Conservative approach on this very sensitive species 2. Reduces potential for ESA actions 3. Could allow recovery, reduces risk 4. Time to revisit Oregon red abalone stock monitoring 5. Monitoring of California stock trends/ management choices Cons: 1. Closes fishery 2. Monitoring is expensive 3. Does not assure a fishery will be advised in future
Pros: 1. Easy to implement 2. Affords opportunity 3. Possibly reduces overall take Cons: 1. Harvest is upon a sensitive, imperiled stock 2. Not likely to reduce overall take, via increased permits
Pros: 1. May reduce take in cooperation with other measures Cons: 1. Harvest is upon a sensitive, imperiled stock 2. Seasonal closures make the fishery more dangerous to fishery participants 3. Increased size limitation likely cause more sorting of abalones (bycatch injuries are lethal)
Pros: 1. VERY popular among free divers 2. Elegant, easy to understand 3. Easy to implement Cons: 1. Harvest is upon a sensitive, imperiled stock 2. Has no conservation benefit (no depth reserve in OR) 3. Likely conservation negative (more bycatch mortalities) 4. Makes fishery more dangerous for participants 5. Did not work in CA areas with only shallow populations 6. Did not work for current CA situation
Pros: 1. Affords a high value recreation opportunity 2. Allows managers to regulate annual take Cons: 1. Harvest is upon a sensitive, imperiled stock 2. Limits would be expected to be low and permits very expensive 3. Complex and expensive to administer 4. We would have to survey regularly, costly