Category Archives: Ecological Monitoring

Tagged Elephant Seal Resight Histories

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The following resight histories were provided by Dr. Patrick Robinson, Director of Año Nuevo Reserve in California. The five elephant seals listed are presently at Race Rocks.

Animal: 48288, tags: GD019R-iu-So,GD018L-ol-So                  
Season 2017                        
OrigTag Age AnimalID ResightID Date Area Tags Read Comment TagComm MarkComm Age Sex Mlt Observer
GD019 0 48288 297540 2017-02-01 AP         P UK   C. Casey
GD019 0 48288 298632 2017-02-09 BBS         W     B. McDonald
GD019 0 48288 298988 2017-02-11 BBS         W M   P. Morris
GD019 0 48288 299787 2017-02-15 BBSU         W M   P. Morris
GD019 0 48288 301742 2017-02-23 BBS GD019R-iu-So,GD018L-ol-So THIS IS THE SECOND 30C, THE FIRST ONE WAS WEIGHED AT NP W M 5 C. Nasr
Season 2019                        
OrigTag Age AnimalID ResightID Date Area Tags Read Comment TagComm MarkComm Age Sex Mlt Observer
GD019 1 48288 330944 2018-04-19 Race Rocks, B.C. Canada GD018 Observed by Laas Parnell    juv     other
GD019 2 48288 330943 2019-04-09 Race Rocks, B.C. Canada GD018 Observed by Laas Parnell   juv     other
Season 2020                        
OrigTag Age AnimalID ResightID Date Area Tags Read Comment TagComm MarkComm Age Sex Mlt Observer
GD019 3 48288 335337 2019-12-14 Race Rocks, B.C. Canada GD018 Observed by Laas Parnell    juv     other
GD019 3 48288 335420 2019-12-29 Race Rocks, B.C. Canada GD019R,GD018L-ol-So reported by Nick Townley (eco-guardian)  juv     other
GD019 3 48288 347129 2020-04-01 Race Rocks, B.C. Canada GD018L-ol-So,GD019R-i Observed by Race Rocks ecoguardian Nick Townley and confirmed with photo. Seal is in great body condition but fur/skin is in poor condition. SA1 M   other
GD019 3 48288 347638 2020-04-12 Race Rocks, B.C. Canada GD018,GD019 Observed by Nick Townley (Race Rocks Ecoguardian)  juv   0 other
                           
                           
Animal: 49134, tags: GE103R-ou,GE135R-il-si                  
Season 2018                        
OrigTag Age AnimalID ResightID Date Area Tags Read Comment TagComm MarkComm Age Sex Mlt Observer
GE103 0 49134 313030 2018-02-05 NP0N   With G7644, Card # 548, but not her original pup. It was raised jointly by G9454 and G7644 after G7644 lost her own pup. P     P. Morris
GE103 0 49134 313518 2018-02-06 NP0N   Is with female 9454 but female 7644 is squabbling with her trying to reach the pup. This is a separate pup from the one marked 76 on LSh. Also has 2 blotches on top of its shoulders, P     P. Morris
GE103 0 49134 314153 2018-02-09 NP1   nursing from female 9454 but 7644 was near P     P. Robinson
GE103 0 49134 314987 2018-02-13 NP0   With Female G7644, Card # 548. It remains to be seen if this is the same pup that is marked 644 L and blotches on top of its shoulder. 6 is backwards, mark almost on ventral side P     T. Keates
GE103 0 49134 315582 2018-02-15 NP0   looks like it could be with either G7466 or G9454 P     R. Holser
GE103 0 49134 316021 2018-02-17 NPG0   This is FOR SURE the pup of 9454 and not 7644. The pup of 7644 is 76. This is one of my study pups that has been adopted by 7644. W     J. Linossier
GE103 0 49134 316052 2018-02-19 NP GE103R-ou One of Juliette Linossier’s study animals W     C. Casey
GE103 0 49134 316341 2018-02-20 NP0S       also 644 L W F   P. Morris
GE103 0 49134 316497 2018-02-22 NP GE103L-ou-So   also has 476? on belly W     T. Keates
GE103 0 49134 316665 2018-02-23 NP GE103R-ou-Si     Noticed marks on L and R, but could not read them. W     R. Cuthbertson
GE103 0 49134 316693 2018-02-23 NP GE135R-il-si,GE103L-ou-si Juiliette study animal. genetic sample AF00375791 database has disagreement on placement of GE103 also 476 on the right and the 6 is backwards W F 25 L. Johansen
Season 2019                        
OrigTag Age AnimalID ResightID Date Area Tags Read Comment TagComm MarkComm Age Sex Mlt Observer
GE103 0 49134 318448 2018-04-17 BBSL GE135R,GE103L-ou-Si     W   100 Robinson class
GE103 0 49134 318974 2018-04-17 BMB GE103L-ou-Si,GE135R-il-Si Cathy Debier 4x blubber biopsy original tag location for GE103 was incorrect W F 100 P. Robinson
Season 2020                        
OrigTag Age AnimalID ResightID Date Area Tags Read Comment TagComm MarkComm Age Sex Mlt Observer
GE103 2 49134 334454 2019-09-07 Race Rocks, B.C. Canada GE103L-ou Observed by Mara Radawetz @ Race Rocks Colony Confirmed by photograph. Seal looks healthy and in good body condition juv     other
GE103 2 49134 334574 2019-10-01 Race Rocks, B.C. Canada GE103 reported by Laas Parnell    juv     other
GE103 2 49134 334575 2019-10-11 Race Rocks, B.C. Canada GE103       juv F   other
GE103 2 49134 346669 2020-03-23 Race Rocks, B.C. Canada GE103L-ou,GE135R-il reported by Nick Townley and confirmed with photo juv   0 other
GE103 2 49134 347639 2020-04-12 Race Rocks, B.C. Canada GE103,GE135 Observed by Nick Townley (Race Rocks Ecoguardian)  juv   0 other
                           
Animal: 52226, tags:                        
Season 2020                        
OrigTag Age AnimalID ResightID Date Area Tags Read Comment TagComm MarkComm Age Sex Mlt Observer
    52226 346670 2020-03-23 Race Rocks, B.C. Canada PT563,PT562 reported by Nick Townley and confirmed with photo ad F 0 other
Season 2021                        
OrigTag Age AnimalID ResightID Date Area Tags Read Comment TagComm MarkComm Age Sex Mlt Observer
    52226 347640 2020-04-12 Race Rocks, B.C. Canada PT562,PT563 Observed by Nick Townley (Race Rocks Ecoguardian) ad F 100 other
                           
Animal: 50727, tags: GE779R-iu-so,GG512L-ol-si                  
Season 2019                        
OrigTag Age AnimalID ResightID Date Area Tags Read Comment TagComm MarkComm Age Sex Mlt Observer
GE779 0 50727 329337 2019-02-20 NP3         P     C. Casey
GE779 0 50727 329365 2019-02-23 NP3         W     M. Emard
GE779 0 50727 329392 2019-02-23 NP3 GE779R-iu-so       W     P. Robinson
GE779 0 50727 329711 2019-02-24 NPG3         W     E Levy
Season 2020                        
OrigTag Age AnimalID ResightID Date Area Tags Read Comment TagComm MarkComm Age Sex Mlt Observer
GE779 0 50727 330651 2019-03-12 NPD GG512L-ol-si,GE779R-iu-so     W M 99 P.Robinson
GE779 1 50727 347641 2020-04-12 Race Rocks, B.C. Canada GG512R,GE779L Observed by Nick Townley (Race Rocks Ecoguardian)  juv     other
                           
Animal: 48066, tags: GC887R-iu-So                    
Season 2017                        
OrigTag Age AnimalID ResightID Date Area Tags Read Comment TagComm MarkComm Age Sex Mlt Observer
GC887 0 48066 298641 2017-02-09 BMC         P     B. McDonald
GC887 0 48066 298732 2017-02-10 BMS         W     T. Barclay
GC887 0 48066 298955 2017-02-11 BMC         P     P. Morris
GC887 0 48066 299024 2017-02-12 BMS         P     M. Voisinet
GC887 0 48066 300206 2017-02-21 BMN         W     T. Russell
GC887 0 48066 300244 2017-02-21 BMC         W     E Levy
GC887 0 48066 300257 2017-02-21 BMC GC887R-iu-So     W     R. Holser
GC887 0 48066 300557 2017-02-22 BMC         W     P. Morris
GC887 0 48066 302743 2017-03-10 BBNS GC887R       W     P. Morris
Season 2019                        
OrigTag Age AnimalID ResightID Date Area Tags Read Comment TagComm MarkComm Age Sex Mlt Observer
GC887 2 48066 330772 2019-03-26 Race Rocks, B.C. Canada GC887R-iu-So Also reported present at Race Rocks in December 2017 and December 2018. juv M   other
Season 2020                        
OrigTag Age AnimalID ResightID Date Area Tags Read Comment TagComm MarkComm Age Sex Mlt Observer
GC887 3 48066 335252 2019-12-07 Race Rocks, B.C. Canada GC887       juv M   other
GC887 3 48066 347642 2020-04-12 Race Rocks, B.C. Canada GC887R Observed by Nick Townley (Race Rocks Ecoguardian)  M   other

Decade Comparisons:Sea Surface Temperature at Race Rocks-

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Link to Race Rocks Mean Monthly Sea Temperature 1921-present,

Monthly temperature averages in degrees Celsius for Race Rocks
1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 Average Month
Jan 6.4 7.1 7.1 6.6 7.8 7.6 6.9 7.1 6.5 7.0 Jan
Feb 7.1 6.1 6.4 7.3 6.9 8 7.4 7.3 6.3 6.6 6.9 Feb
Mar 7.3 6.6 6.7 7.7 7.3 8.6 7.8 7.8 7.1 7.1 7.4 Mar
Apr 7.7 7.5 7.6 7.9 8 9.2 8 8.6 7.8 8.2 8.1 Apr
May 8.5 8.3 8.6 9 9.2 10.1 8.8 9.7 9 9.3 9.1 May
June 9.5 9.5 9.3 9.8 10.1 10.7 9.8 10.2 9.8 10 9.9 June
Jul 10.3 10.5 10.3 10.5 11.1 11.1 10.5 10.8 10.8 10.6 10.7 Jul
Aug 10.5 10.3 10.5 10.3 10.8 10.9 10.9 10.9 10.8 10.8 10.7 Aug
Sept 10.3 10.2 10.6 10.2 10.2 10.5 10.3 10.3 10.7 10.6 10.4 Sept
Oct 9.8 9.3 9.6 9.2 9.2 9.8 9.7 9.2 9.8 9.4 9.5 Oct
Nov 9.1 8.4 8.7 8.8 8.3 9.1 8.6 8.6 8.8 8.6 8.7 Nov
Dec 8.2 7.1 7.9 7.3 8.2 8.5 7.6 7.9 7.8 8 7.9 Dec
8.8 Decade
average
Average
1995 1996 1997 1998 1999 2000 2001 2002 2003 2004
Jan 8.2 8.2 7.7 8.7 8 7.5 7.9 8.1 8.8 7.8 8.1 Jan
Feb 8.6 7.8 7.9 9.2 7.8 7.7 7.7 7.9 8.5 7.9 8.1 Feb
Mar 8.8 8.4 8.1 9.7 8.1 8.1 8.1 7.7 8.7 8.3 8.4 Feb
Apr 9.2 9.2 9 9.9 8.9 9.1 8.7 8.7 9.2 9.1 9.1 Apr
May 10.2 10 10.3 10.4 9.5 10 9.7 9.4 9.9 10.4 10.0 May
June 11.2 10.4 10.9 11.4 10.4 11.1 10.6 10.5 10.9 11 10.8 June
Jul 11.8 11.5 11.7 11.7 11.1 11.3 11.3 11.2 11.3 11.8 11.5 Jul
Aug 11.5 11.5 12.2 12.3 11.5 11.7 11.4 11.7 11.4 11.9 11.7 Aug
Sept 11.3 10.5 11.6 12.1 11.9 11.4 11.4 11.3 11.4 11.2 11.4 Sept
Oct 10.2 9.9 11.3 10.7 10.1 10.3 10.2 10 10.9 10.6 10.4 Oct
Nov 9.4 8.7 9.9 9.8 9 9 9.2 9 9 9.4 9.2 Nov
Dec 8.9 7.6 9.3 9 8.5 8 8.3 8.8 8.5 8.6 8.6 Dec
9.8 Decade
Average
This analysis has been done by Garry Fletcher using the monthly averages of the daily temperatures.
See this file for the complete set of monthly data1921 to present
The following is a comparison between 1951-1960 and 2001-2010

Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dec
1951 7.5 6.9 6.7 8.1 9.2 10.2 10.4 11.1 10.9 9.5 8.5 7.7
1952 6.9 7.1 7.6 8.2 9 9.6 10.4 10.5 10.2 9.8 8.6 7.9
1953 7.8 7.9 7.6 8.1 9.3 9.8 10.6 11 10.6 9.9 9.3 8.5
1954 7.1 7.3 7.5 7.9 8.7 9.3 9.9 10 10 9.4 9.1 8.4
1955 7.5 7.1 6.7 7.5 8.4 9.3 9.8 10.2 10 8.9 7.5 6.6
1956 6.7 6.4 6.3 7.6 8.7 9.6 10.2 10.4 10.1 9.2 8.1 7.1
1957 6.3 6.2 7.2 8.1 9.3 10 10.3 10.5 10.5 9.8 8.8 8.3
1958 8 8.3 8.6 9.3 10.3 10.7 11.5 11.5 11 9.9 8.7 8.1
1959 7.6 7.4 7.9 9.1 9.7 10.4 11.3 11 10.4 9.7 8.3 7.8
1960 7.1 7.5 7.5 8.6 9.6 10.3 11.4 10.8 10.1 9.5 8.6 7.9
Mean 7.25 7.21 7.36 8.25 9.22 9.92 10.58 10.7 10.38 9.56 8.55 7.83

2001 7.9 7.7 8.1 8.7 9.7 10.6 11.3 11.4 11.4 10.2 9.2 8.3
2002 8.1 7.9 7.7 8.7 9.4 10.5 11.2 11.7 11.3 10 9 8.8
2003 8.8 8.5 8.7 9.2 9.9 10.9 11.3 11.4 11.4 10.9 9 8.5
2004 7.8 7.9 8.3 9.1 10.4 11 11.8 11.9 11.2 10.6 9.4 8.6
2005 7.7 8 8.8 9.4 10.7 11.2 11.6 12.1 11.5 10.4 9.5 8.3
2006 8.61 8.49 8.41 8.75 10.08 10.86 11.66 12.09 11.49 10.55 9.29 8.5
2007 7.8 7.9 7.9 9 10 10.2 11.2 11.6 11 10 9 8
2008 7.46 7.33 7.68 8.06 9.36 9.77 10.84 11.3 11.16 10.14 9.39 7.87
2009 7.29 7.2 7.5 8.4 9.54 10.4 11.4 11.74 11.8 10.5 9 7
2010 8.11 8.68 9.12 8.96 9.54 10.36 11.16 11.93 11.08 10.37 8.98 8.5
Mean 7.95 7.96 8.22 8.82 9.862 10.58 11.34 11.71 11.33 10.36 9.17 8.24

Monthly Means
2001-2010 1951-1960
Jan 7.96 7.25
Feb 7.96 7.21
Mar 8.22 7.36
Apr 8.83 8.25
May 9.86 9.22
June 10.58 9.92
july 11.34 10.58
Aug 11.71 10.7
Sept 11.33 10.38
Oct 10.36 9.56
Nov 9.17 8.55
Dec 8.24 7.83

See also https://www.env.gov.bc.ca/soe/indicators/climate-change/sea-surface-temperature.html

Seagulls lay eggs

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Weather

  • Visibility: 15 Miles
  • Wind: 15-20 NW
  • Sky: Partly cloudy
  • Water: Ripply/Calm

Boats/Visitors

  • Few ecotour boats scattered through the day

Ecological

  • Spotted a young elephant seal (about 3-4 ft in length) near the jetty.
  • Seagulls have laid their eggs! I estimate about 30-40 eggs on the island so far, definitely growing in number. Some seagulls are still building their nest/adding more straw
  • Spotted a tagged elephant seal near the jetty. Tag number was B198. Photo below

 

Photos of the tagged Elephant seal:

The Grand Sailboat Regatta

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Weather

  • Visibility: 8 miles in the early morning, 15 later on
  • Wind: 15-20 knots East, then North, then West
  • Sky: foggy and overcast, then sunny, then overcast
  • Scattered raindrops throughout the day
  • Water: mostly calm, with swells in the afternoon

DSC_6437

Ecological

  • Maya and Tazi conducted 4 intertidal transects today.
  • Studying an intertidal transect involves measuring out a certain distance from a peg, and then documenting the different species found every 0.5 metre.
  • In some transects the 0.5 metres are measured by water elevation; in others simply by distance.
  • By comparing the species found in every zone of the transect with transect data from previous decades, you can see the change in intertidal ecosystems due to climate change.
  • We saw a California Sea Lion with the brand U374 and another with a tracker.
  • While most of the gull eggs all look the same, one particular egg is quite different.

Maintenance

  • Maya and I ran the fire pump in the morning.
  • This added a few inches to the cistern.
  • We removed the old Canadian flag and hoisted a fresh one.
  • Tazi and I removed some algae.
  • Ali whacked away at the thistles.
  • We cleaned the solar panels.

Boats

  • Over 150 sailboats from Victoria passed by Race Rocks in the late morning on their way towards the Western horizon.
  • Some of them started to return as late as 22:30.
  • The colours of their sales included: red, blue, white, fluorescent yellow, green, purple, black, orange, and many combinations of all of the above.
  • Some standouts included the Miles Davis sail and the Union Jack.
  • I couldn’t stop taking photos and ended up with dozens. Below is a selection of the best.
  • One coastguard zodiac and a search and rescue boat appeared to be accompanying the sailboats.
  • Several eco-tours came by, including one Eagle Wings tour that drove through the South Channel.
  • Passing through the South Channel is prohibited as the width is too narrow.

Transect Peg Locations on Great Race Rocks

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Expand this map of Great Race Rocks in order to see the numbered pegs in red around the shoreline. Some of these pegs were intended as intertidal locators, and some as subtidal tethering pegs. The ones with question marks still need to be located to be sure.

Some of the  pegs were established pre-1980 and some were established after 2000.

centrelargeandislepegs
Peg 1: off west side of jetty end- subtidal
Peg 2: off point of bay west of jetty–subtidal
peg 3: further along north side– subtidal
peg 4: off base of cliff– subtidal (proved impractical because of high current)
peg 5: inter and subtidal
peg 5a:later installation- inter and subtidal
peg 5b: later installation-inter and subtidal
peg 6: for tidepool locator and intertidal and subtidal
peg 7: for subtidal minimal use
peg 8: for subtidal not used
peg 9: for subtidal not used
peg 9 : for subtidal not used
peg 10: for subtidal not used
peg 11: subtidal not used as too close to old outfall.
peg 12 inter and subtidal
peg 13: used for annual intertidal algae stratification lab exercise.
peg 14: subtidal- outer extreme North East corner.
peg 14b: inter and subtidal concrete mound with stainless steel hole for peg – inter and subtidal
peg 15: large boat mooring post — used for intertidal lab exercises
peg 15a: inter and subtidal concrete mound with stainless steel hole for peg – inter and subtidal

From peg 5 and 5a:
See Transect A0050101
See Transect A0050102
See Transect A0050103

___________________________________________________________

Return to the Contents page for Environmental modelling with Transects..

Marine Sciences Field Exam

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Weather

  • Visibility: 15 miles
  • Wind: 5-10 knots West, in the evening up to 20.
  • Sky: clear
  • Water: calm

Ecological

  • The 15 elephant seals were slower down to the water today, perhaps due to the influx of students.
  • One California Sea Lion spent most of the exam at the end of the jetty, unfazed by all the activity going on. Quite unusual for a sea lion!
  • All manner of barnacle, shell creatures, and algae plant things were examined today by the Pearson College students.

Visitors!

  • Approximately 30 folk from Pearson College made their way out to Race Rocks today.
  • This included Laura Verhegge who was running the Marine Sciences field exam, Johanna who was observing Pearson’s instruction techniques, one 2nd year student, one alumni, Chris, and 25 or so students.
  • The first group arrived at 8:15, the final group left at about 12:15.

Maintenance/Chores

  • Weed whacking.
  • Algicide application. Photo shows before scrubbing.
  • Safety observation and hosting of students during exam.
  • Ran the desalinator.

Algae before

Boats

  • The Ocean River Kayak Discovery Shuttle and Haiaku each took two trips of students to and from Race Rocks.
  • On the return voyage the tide was very low, and the sea lions were in the way, so the shuttle boat “docked” against the rocks on the NE part of Great Race.
  • At least 4 eco-tours came by the reserve today.
  • Saw a nice red sailed sailboat to the north of the reserve.
  • One boat spent much of the day fishing on the edge of the reserve.

Marine Mammals Hauled out on Race Rocks Jan 2014-Feb 2016

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This graph represents the 6 marine mammal species which haul out on Great Race Rocks in the Race Rocks Ecological reserve.  providing the population numbers and the time of year  CLICK to enlarge. The data was obtained from the Posts on census done by the Ecoguardians at Race Rocks.mammalcraph

The graph below represents the Elephant seal population at Race Rocks Ecological reserve with data taken from the Ecoguardian logs for January 2014 to January 2016. Click to enlarge.

elephantseal2014-2015

Humpback and Orca Sightings from Race Rocks in the Strait of Juan de Fuca

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In preparing for the oral presentation that the Friends of Ecological Reserves  will give on January 28 in Burnaby, as an intervenor for the National Energy board Hearings, I have recently updated or graphs on Humpback and Orca sightings by the Ecoguardians at Race Rocks: The posts done by our Ecoguardians tagged for orcas or  humpback whales assisted in this tabulation.

image003 orcadays

Concern for the 19 Marine Ecological Reserves which could be affected by the KM/TMX pipeline.

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The  Board of Friends of Ecological Reserves,  submitted their final report as Intervenors in the National Energy Board Hearings on the Kinder Morgan Trans Mountain Expansion Project.

The report deals with what they see as a flawed process in the NEB and with the concern  for proper funding from the oil company and ecological monitoring to be provided in Marine Ecological Reserves before any approval of the project can be allowed. It deals with the 19 Ecological Reserves in the Southern part of Vancouver Island, and Juan de Fuca and Georgia Straits. Since Race Rocks Ecological reserve lies within a few kilometres of the proposed tanker route,  it is used extensively for examples in this report. Our thanks to the Race Rocks Ecoguardians of the past few years who have, through their observations and photos provided a valuable resource from which we have drawn data and images.  —Garry Fletcher.

finalreportcover