Aquatic Environment and Biodiversity Annual Review 2012

AEBAR 2012: Protected species: Seabirds
For white-chinned petrel, captures rates increased between 2002/03 and 2010/11 in squid and scampi
trawlers (Figure 5.9) but showed no trend for bottom longliners targeting ling and bluenose. Together,
these fisheries account for 81% of all estimated captures of white-chinned petrel in these years.
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White-chinned petrel captures and capture rates
Captures Capture rate
Ling longline: 32% of captures
2003 2004 2005 2006 2007 2008 2009 2010 2011
Squid trawl: 30% of captures
2003 2004 2005 2006 2007 2008 2009 2010 2011
Bluenose longline: 11% of captures
2003 2004 2005 2006 2007 2008 2009 2010 2011
Scampi trawl: 8% of captures
2003 2004 2005 2006 2007 2008 2009 2010 2011
Fishing year
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0.03
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0.03
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2003 2004 2005 2006 2007 2008 2009 2010 2011
2003 2004 2005 2006 2007 2008 2009 2010 2011
2003 2004 2005 2006 2007 2008 2009 2010 2011
2003 2004 2005 2006 2007 2008 2009 2010 2011
Figure 5.9: Model-based estimates of captures (left panels) and capture rates (right panels, captures per
100 trawl tows or 1000 longline hooks) of white chinned petrels in the four fisheries estimated to have
taken the most captures between 2002/03 and 2010/11 (cumulatively, 81% of all white-chinned petrel
captures). Data version v20121101.