Creatures of the Deep - The Amazing Lives of Rockfish

· Galiano Island · Reports & Publications · 2013

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Topics: Marine & foreshore · Climate & environment — our classification, not the Trust's.

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The Amazing Lives of Rockfish
Lia Chalifour, Biologist
Galiano Conservancy Association 
Photo by Scott Stevenson, Pacific Marine Imaging

Rockfish 
Natural History
•
Live larvae – not eggs
•
Territorial 
(Home on the range)
•
Long lived
•
Late bloomers/fine wine
•
Curious 
‘
Mesopredators
’
•
Creatures of the deep
•
Under Pressure

Photo by Scott Stevenson, Pacific Marine Imaging
Threats to Rockfish:•
Overfishing
•
Habitat degradation
•
Pollution
•
Derelict fishing nets
•
Climate Change

Maps from Fisheries and Oceans Canada
http://www.pac.dfo-mpo.gc.ca/fm-gp/
maps-cartes/rca-acs/index-eng.htm
•
164
RCAs in 2007
•
86
in the Strait of Georgia
•
No
hook and line
fishing

Pebble Beach RCA
Trincomali Channel RCA
Gossip RCA



Rockfish Photos by Scott Stevenson

•189 rockfish•5 species•Mostly Quillback
and Copper
Out of 18 transects:

Highest biodiversity and density was seen outside of the RCAs
IN RCAs:13
rockfish per 100m
3
OUTSIDE RCAs:24
rockfish per 100m
3

Multiple benefits of Rockfish Conservation Areas?



Threats to Rockfish:•
Overfishing
•
Habitat degradation
•
Pollution
•
Derelict fishing nets
•
Climate Change?

Photo by Scott Stevenson, Pacific Marine Imaging
Thank You!Travis Beaulieu 
– Dive partner, 
videographer, ‘keystone teammate’Dana Haggarty 
– Aid in methods 
and SurveyingDr. Tom Mommsen 
– Rockfish 
biology and habitat Galiano Community Volunteers!Dr. K. Lynne Yamanaka 
–DFO 
data, background and site choice

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