ER Wardens Report, Sept.21

Today, Guy Ouradou from Pearson College drove me out to Race Rocks Ecological reserve with David Obura, Pearson College alumni from Kenya year 10. The main change since I was there last was the predominance of California sea lions over most of the island. Northern sealions occupied a small portion of rock near the docks and the isthmus below the light tower. Each year the college has to put up an electric fence to prevent the sealions from invading the centre of the island which can result in damage to conduits, and facilities.

Laas adjusts the electric fence on the south side of the house.

A new fence system is being installed this year, which has so far proven to be very effective. Another aspect of the sealions being on the centre part of the island is that they have been damaging the structure of the rocks arranged in the areas of the aboriginal burial cairns. The big change in sealion distribution is that previously they have concentrated on West Race Rocks, North Race Rocks and the south Islands off the tower. This year there are none out on those islands  and they are all on the main island.

 

CODAR antenna and sealions

I also was able to observe the equipment installed by Oceans Network Canada for CODAR. Hopefully we can get a connection to the output of the data obtained from this equipment when we neet with Kevin Bartlett from Ocean Networks Canada next week on Sept 28.

Earlier this year, Lester Pearson College upgraded the solar batteries which have served for the past 11 years. New inverters were also installed.

Leaving the island we have to deal with a dock full of sealions which have returned since our arrival.

Census

Weather

  • Visibility: 15 miles
  • Wind: 25-30 knts W
  • Sky: Overcast
  • Water: small white caps

Boats/Visitors/Sightings

  • A few ecotour boats in the area

Marine Mammals

  • All the Elephant seals seemed to be huddled up on the north side of the student residence, possibly to stay out of the wind

Census

  • Elephant Seals
    • Male = 4
    • Female = 0
  • Sea Lions
    • California = 1
    • Steller = 0
  • Seagulls = 200
  • Pigeon Guillemot = 90
  • Eagles = 5
  • Oystercatchers = 9
  • Harbour Seals = 65
  • Geese = 2

Molting Harbour Seal

Weather

  • Visibility: 15 miles
  • Wind: 25-30 knts W
  • Sky: Partly Cloudy
  • Water: Ripply

Boats/Visitors/Sightings

  • An average number of ecotour boats today – the tourists were treated with quite a spectacular sunset!

Marine Mammals

  • Saw a single California Sea Lion on the jetty early this afternoon – the only sea lion to be visible in the last 3 days.
  • Spotted a molting harbour seal near the jetty that seemed to be in a lot of pain. It’s unusual for harbour seals to come to the main island, but this one seemed to be trying to stay out of the water, possibly due to sensitive skin. I kept an eye on it for the evening, and went to check on it this morning but it was gone.

Another Elephant Seal fight and Orcas in the distance

Weather

  • Visibility: 15 Miles
  • Wind: 5-10 knts N
  • Sky: Partly Cloudy
  • Water: Ripply

Boats/Visitors/Sightings

  • Average amount of ecotour boats around the island today

Marine Mammals

  • The additional male Elephant Seals from yesterday remained on the island today, causing yet another fight between a new adult male and the existing adult male. Neither was seriously injured.
  • Some harbour seals got closer to the main island than I’ve seen before – they usually hang out around the south islands.
  • Saw some whale watching boats gathered probably a couple of kilometers away in the south, and with my camera I got some shots of the orcas they were watching. It was too far to see the orcas themselves with the naked eye, but I could see the water sprays they were making.

Visitors and volunteers!

Weather

  • Visibility: 15 Miles
  • Wind: 5-10 knts W
  • Sky: Partly cloudy
  • Water: Ripply

Boats/Visitors/Sightings

  • Quite a few ecotour boats today
  • One of the whale watching boats entered the channel on the East side of the main island. I was busy trying to get them to reverse out and couldn’t run to get a picture unfortunately. I’ll be on the lookout for the same boat again.
  • Guy brought several volunteers and visitors to the island today! The volunteers helped Guy place some of the old batteries on the upper shelves of the battery room. Guy was also able to help me with the desalination and power washer issues. We were also able to test the YSI meter to confirm that it is giving inaccurate readings and needs to be fixed.

Marine Mammals

  • There were 3 female and 1 male Elephant Seals on the island today. The second male from yesterday was nowhere in sight.

Very windy day

Weather

  • Visibility: 15 Miles
  • Wind: 20-30 knts W
  • Sky: Partly cloudy
  • Water: White caps, 1-2 meters
  • Some light showers during the afternoon

Boats/Visitors

  • Just a couple of ecotour boats today due to the strong wind.
  • Not much private boat traffic either

Birds

  • The seagulls have gotten noticeably more aggressive but still no signs of offspring

Marine Animals

  • There were four Elephant seals on the main island today – one male and three female. The male and one female seemed to occasionally get aggressive with each other, but no harm was done to either.
  • One of the females still seems to be undergoing the molting process.
  • Elephant Seal tagged B198 is still on the island and has been in the same spot over the last few days.

Overall, quite an uneventful day.

Census Day!

Weather

  • Visibility: 15 Miles
  • Wind: 15-30 NW
  • Sky: Mostly clear
  • Water: Waves 1-2 metres

Boats/Visitors

  • one or two scattered ecotour boats
  • Guy brought 3 tour groups, only one of which docked. The tides and currents were uncooperative for the other two groups. The group that came ashore spent about 30 mins visiting the student residence and lighthouse.

Census

  • stellar sea lions – 16
  • california sea lions – 8
  • elephant seals – 3 female, 1 male
  • gulls – 200
  • pigeon guillemots – 105
  • oyster catchers – 12
  • geese – 4
  • eagles – 4

 

Christmas Bird Count at Race Rocks- Dec 28, 2017

This year is our 20th year in assisting the local birders with the Rocky Point Bird Observatory in doing a count at Race Rocks. Given the time of year this has to occur, it is often thwarted by bad weather, but in the past counts, some very interesting species and population numbers have shown up.  See this index of past years Bird Counts. https://www.racerocks.ca/race-rocks-animals-plants/bird-observations-at-race-rocks-3/christmas-bird-counts-starting-in-1997/

Kim Beardmore same along to record the birds for the 2017 Christmas bird count. Here Kim on the left and the Ecoguardian Mikey Muscat check on one of the 5 male elephant seals.

Although we went to count birds, I found that the most impressive thing was that there were 5 large male elephant seals on the island and two juvenile females. When compared with other years this was quite unusual, and it could be interesting when the females come back in January to have pups. I predict there will be a lot of male aggression going on in mid-January.

These four species other than several gull species and bald eagles were part of the count  which we will add below .

Other observations around the island:

Romanzoffia tracyi

I took advantage of the few hours there to check on other aspects of the island from the ecological reserve warden point of view.  Especially noticeable this year were the massive fields of mud over most parts of the island where the california sea lions hauled out over the past few months. I was concerned about the erosion and rock disturbance that this has caused.   Most of the plants in many parts of the island have been obliterated. I did however find this one healthy patch of Romanzoffia tracyi behind the boathouse. Protected because of its location among  the rocks. I checked some of the other known locations of this rare plant but didn’t see any.

Black oystercatcher midden

 

One feature that was very evident with the lack of vegetation was the extensive beds of chiton shells which are evidence of black oystercatcher middens from last season.

 

 

 

Two immature or juvenile female elephant seals were on the island, one tagged ..green C887

The five males:

I have been watching the vegetation cover made up of the introduced species of Sedum or stonecrop which was on the top of the reservoir.. In my September photo the bed was quite dried and cracked. Now it  has partially recovered.. This is one place the sealions seem to avoid.

 

Because Pearson College could not provide boat transportation this year, and because I was determined to continue the 20 year tradition of this valuable baseline collection of bird population data, we rented a boat from Pedder Bay marina for the trip to Race Rocks.  A list of the birds observed by Kim Beardmore is  attached here.

 

Race Rocks,
Dec 28, 2017 9:05 AM – 11:37 AM
Protocol: Traveling
7.5 kilometer(s)
Comments:     CBC, Race Rocks
16 species (+1 other taxa)Harlequin Duck  10  (North and west Race Rocks)
Surf Scoter  55  (outer pedder bay)
Red-breasted Merganser  18 (mostly outer Pedder bay)
Common Loon  2
Horned Grebe  1
Brandt’s Cormorant  14
Pelagic Cormorant  18
Double-crested Cormorant  10
Bald Eagle  4
Black Oystercatcher  42
Black Turnstone  59
Common Murre  1  ( in outer Pedder bay)
Pigeon Guillemot  10
Mew Gull  14
Iceland Gull (Thayer’s)  8
Glaucous-winged Gull  69
Western x Glaucous-winged Gull (hybrid)  2

First Week as Ecoguardian

Weather

  • Visibility: Very foggy early morning but cleared right up by 8:30am
  • Wind: 11-16 NE throughout the day
  • Sky: sunny with cloudy periods
  • Water: mostly calm, a bit choppy

Boats/Visitors

  • Had about 7 boats cruise by in the last week
  • had a small tour come ashore last saturday morning of pearson college students

Ecological

  • had a young harbour seal that was on the island for a few days but is gone now
  • there are a pair of eagles hanging around for the last week
  • large male elephant seal was here for 6 days and left last night
  • caught a quick glimpse of what looked like a small sea otter running by the jetty yesterday morning

Other

  • had a very large blast go off from Rocky Point that shook the house and startled birds.

Notes

  • enjoyed my first week here at Race Rocks!

Warden’s report Race Rocks September 2017

I was able to get out to Race Rocks Ecological reserve with Guy today and went with former student Joao Luis de Castro and Yan Corriveau. I  wanted to check on what changes have occurred on Great Race Rock Island  since my last visit. Since it was an exceptionally dry summer, the effect on vegetation was evident. The spread of hauled out sealions into parts of the island traditionally not invaded also has left a significant impact on vegetation. It will be important to  follow up on vegetation recovery once the rains start.

This year the sea lions have hauled out and inhabited many parts of the island formerly not used as a haulout . I am concerned that erosion because of obliteration of most of the plants in the area of the First Nations burial cairns could be detrimental to the cairns. It will be inprtant to check on this once the sealions have left again.

The lack of precipitation since May has resulted in a shrinking of the stonecrop that covers the top of the Reservoir. I had never seen it quite this dry before.

 

The sealion haulouts at Race Rocks do not segregate by species as they do in some other parts of the coast. Note the cookie-cutter shark bites on the California Sealion on the right hand picture.

 

Garry Fletcher, Sept 25, 2017