Category Archives: Video

Installation of the Remotely Operated Camera 5 at Race Rocks

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This remote controlled camera gives a full 340 degrees view of the land and surrounding waters of Great Race Rocks. The panoramic view with zoom capabilities can be controlled by the viewer.

Photos for this page by G.Fletcher

Be sure to use the manual focus when needed, and we apologize if occasionally the housing is covered with salt spray making viewing difficult, as it is not easy to keep it clean in this exposed location.

The original cam 5 was a SONY camera provided by Apple. This was replaced in 2010 with a canon VBC60, available from Nuspectra.

We have had collaboration from viewers in capturing pictures from this camera. See this example.

Elephant seal mating

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Two elephant seals haul out on the lawn and provide evidence of mating behaviour.  The female has a large cut around her neck indicating an old injury. (Scarlet)

On January 22, 2004 Mike and Carol Slater moved camera 3 over to their house in order to keep track of the male elephant seal, Mirounga angustirostris who has been hauled out on Great Race Rocks recently. They took these images right outside their house. He is the same one (Slash) who was injured a year ago.. See the video footage from January 03, and from August 03

This was the first time an adult female had come up to join him on the lawn. That afternoon there was considerable maneuvering for reproductive purposes.

It turns out that the female has also had an extensive injury. This deep cut, now healing over has probably been caused by a fish net or rope. We have not observed this female before at Race Rocks. She may have been hauled up on the Middle island where they lie on the flat top part and are not very visible from a boat. ( Later, Pam Birley gave this female the name of Scarlet
In 2009, we believe this same female elephant seal has again shown up on Middle Island

 

 

Tide Pool Abiotic factors

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In the high intertidal areas of Race Rocks, there are tidepools with wide fluctuations of abiotic factors. The organisms inhabiting these pools are well adapted to these extremes. Garry talks to a biology class about some of the variables influencing these high tide pools, and the flagellated green algae living within them.

Slash Recovered a Year Later

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This Elephant Seal was struck by a motor boat at Race Rocks in January of 2003. Fortunately he has recovered well as can be seen her in two videos taken by Mike Slater in July and August ,2003. See the footage taken of his original injuries here.

2009: We have called this elephant seal “SLASH” and he now has his own page here

MPA Guardian Carol Slater’s comments on these animals in the Daily log of Jan19, Feb 11, Feb13, Feb 14 and Mar 1, 2003

Underwater Transect at Race Rocks

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The most difficult transects to do at Race Rocks Ecological reserve are those underwater. Through the years we have done a number of these, mostly in training sessions with the Pearson College Divers.  We experimented with various types of spools for laying out a line, types of weighted line, measuring tape, quadrat sizes, types of underwater paper on clipboards, types of pencils or writing devices  etc.  The best arrangement was using a 30- 50 metre long tape which could be attached to the peg on shore  and then taken out by the diver in a predetermined compass direction. The biggest problem other than the narrow window to get the work done was always the kelp cover, making the process very difficult in the later part of the year when the Nereocystis, (bull kelp) cover would make it impossible to access some areas.   The divers working in pairs would then proceed along one side of the line producing a record of the belt transect.  

Laura Verhegge and students of Pearson College doing an underwater transect off peg #1 at Race Rocks.

 


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

Limnodromus griseus: Short-billed Dowitcher–The Race Rocks Taxonomy

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Short -Billed Dowitchers, photo by Riley Strother, April 20 2017

This juvenile short-billed Dowitcher was seen up near the tower in August 18 2009. It was very tame and quite unconcerned with the local humans. Image by Ian Perry.

The same juvenile, (Aug 18/ 09) , shown above. Images by G.Fletcher
Dowitcher probing for invertebrates Note the Halosaccion band of the intertidal zone where it is feeding rear view- note buff colored underparts side view- note dark eye.
Eukarya
Kingdom Animalia
Phylum Chordata
Subphylum Vertebrata
Class Aves
Order Charadriiformes
Family Scolopacidae
Genus Limnodromus
Species griseus
Common Name: Short Billed Dowitcher

The Short-billed Dowitcher breeds in Northern Canada. It winters in South America.
It occurs rarely and solitary at Race Rocks where it stops on migration. Short-billed Dowitchers normally are birds of mudflats along the Pacific Coast. One individual bird was filmed on May 1 2003 (above)as it probed for food among the barnacles and algae of the Halosaccion zone at Race Rocks.

In the photo to the right from September 2005, another dowitcher roamed through the area near the base of the rock on the East side. So presumably we have pictures of the stopover going North and South!

Compare with the size of a gull in this Link to a post showing Dowitchers at Race Rocks-April 20 , 2017

This video shows the Short-billed Dowitcher (Limnodromus griseus) in the intertidal zone to the East of the docks at Race Rocks. Note the “sewing machine ” action as it probes for food. The biology class watched this bird on May1/03 before starting on an intertidal transect in the same area. The coloration was noticeably buff-colored when compared to other shore birds. This individual was very fearless, even returning to feed briefly nearby after we had laid down our transect. This is normally a bird of the Pacific Coast mudflats.

 

Other Members of the Class Aves at Race Rocks.
taxonomyiconReturn to the Race Rocks Taxonomy
and Image File
pearsonlogo2_f2The Race Rocks taxonomy is a collaborative venture originally started with the Biology and Environmental Systems students of Lester Pearson College UWC. It now also has contributions added by Faculty, Staff, Volunteers and Observers on the remote control webcams. May 2003– Garry Fletcher/strong>

Slash, an Elephant Seal Injured by a Motorboat

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This page is directed to all those marine vessel operators who persist in driving at high speeds in areas frequented by Marine birds and mammals. This Elephant Seal was struck by a motor boat somewhere around Race Rocks in January of 2003. Fortunately he will probably survive, he was one of the “lucky” ones. This is the most northern location for haulout of elephant seals . They are docile creatures, unafraid of boats. We just have to slow down and watch the surface carefully to avoid these animals when we are driving around sensitive ecological areas. 

slashmovieiconIn January 2003, two male elephant seals were hauled out on Great Race island. One was suffering from severe injuries, probably inflicted by someone driving a motor boat at high speed in the area around Race Rocks.

 We eventually named  “Slash” and he becomes the docile elephant seal that hangs around the main island for many years. 

injured elephant seal injured elephant seal

 Return to the Index file on Slash.

Slash, the Injured Elephant Seal

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In January 2003, two male elephant seals were hauled up on Great Race island. One was suffering from severe injuries, probably inflicted by someone driving a motor boat at high speed in the area around Race Rocks. This elephant seal we eventually name “Slash” and he becomes ta docile elephant seal that hangs around the main island for many years. Ecoguardian Mike Slater took this video. See other videos of him on this site.

  • See MPA Guardian Carol Slater’s comments on these animals in the Daily log of Jan19, Feb 11, Feb13, Feb 14 and Mar 1, 2003
  • See the recovery a year later below:
  •  Fortunately he has recovered well as can be seen her in two videos taken by Mike Slater in July and August ,2003. later we started vcalling him Slash and have devoted a special page to him on this website

 

Oregonia gracilis: Decorator Crab — The Race Rocks Taxonomy

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Decorator crabs are common in the intertidal and subtidal areas at Race Rocs. Their habit of attaching bits of algae, or shell on their carapace makes them well camouflaged. They are a small crab, only up to 2-3 cm width in their carapace. 

In 1889, William Bateson observed in detail the way that decorator crabs fix materials on their backs. He noted that “[t]he whole proceeding is most human and purposeful”, and that if a Stenorhynchus crab is cleaned, it will “immediately begin to clothe itself again with the same care and precision as before”.[2](Wikipedia)
Domain Eukarya
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Crustacea
Class: Malacostrata
Order: Decapoda
Family: Majidae
Genus Oregonia
Species gracilis
Common Name: Decorator Crab
 

Other Members of the Phylum Arthropoda at Race Rocks 
taxonomyiconReturn to the Race Rocks Taxonomy
and Image File
pearsonlogo2_f2The Race Rocks taxonomy is a collaborative venture originally started with the Biology and Environmental Systems students of Lester Pearson College UWC. It now also has contributions added by Faculty, Staff, Volunteers and Observers on the remote control webcams.

 name 2002 (PC)