July 13 and 14 – Weekly Census

Ecological Notes:

  • The sea lion population is growing. For the past few days there have been 18 Steller sea lions hauled out on Middle Rocks. That is up from four sea lions one week ago. One of the sea lions has a brand. It appears to say 620R, although the researcher I contacted in Oregon mentioned it is what they call a bad brand and he was unable to determine the brand from the photos I sent. I will keep a look out for the sea lion and see if I can get a better view. The researcher will check his records to see if he can identify the sea lion and be able to record the resighting.
  • The super moon on Wednesday night rose in the southeast at 10:00pm. It was a big bright orange orb that looked more like the rising sun, than the moon.
  • Today’s extremely low tide of -0.2m or -0.7′ was at 10:13am. The overnight high tide at 00:55am was 3.0m or 9.8′. It is apparently the lowest tide in a decade. I was fascinated to see the extended edge of the water all around the many islands. I looked at the exposed intertidal zone from a distance and up on the jetty, so as not to disturb the many delicate species.
  • See the photo gallery below for more ecological happenings from the past two days.

Weekly Census Results from July 13:

  • Steller/Northern sea lions: 18
  • Sea otter: 1
  • Harbour seals: 133
  • Bald eagles: 2 (1 juvenile and 1 adult)
  • Canada geese: 9 (5 adults, 4 goslings)
  • Black oystercatchers: 11 (8 adults, 3 chicks)
  • Cormorant: 4
  • Glaucous-winged gulls nesting on the main island: 247
  • Glaucous-winged gull chicks: approximately 200 (it is hard to get an exact number due to their camouflage in the grass and hiding under their parents)
  • Gulls not nesting (some glaucous-winged and some other species) on the south end of the main island and outer islands: 96
  • Pigeon guillemots: 142
  • Black turnstones: 2
  • Western sandpiper: 2

Weather:

  • Yesterday (July 13):
    • Sky: Part Cloudy
    • Wind: W 12-32 kts
    • Sea: rippled, then up to 3′ waves in afternoon and evening
    • Temperature Low 12oC, High 16oC
  • Today (July 14):
    • Sky: Part Cloudy
    • Wind: W 15-27 kts
    • Sea: rippled, then up to 2′ chop in afternoon
    • Temperature Low 11oC, High 13oC

Visitors:

  • No visitors

Facility Work:

  • Scrubbed and squeegeed solar panels, routine tidying and checking infrastructure around the island.

Vessel Traffic:

  • Many Canadian and American ecotour boats have been nearby and heading through the waters of the ecological reserve.

Here are photo highlights from the past two days. Click on the photos for larger views and captions.

Neat Intertidal Finds

Weather:

  • Visibility 6 NM
  • Sky overcast
  • Wind 5-10 knots W
  • Sea state: Calm

Marine Traffic/Island Visitors:

  • Greg visited with supplies on Friday
  • There have been a steady trickle of eco-tourism boats, 5-10 per day.
  • On Thursday DFO and Marine Mammal rescue visited the reserve (more on this below).

Ecological Observations: 

  • There has been a young sea lion in the reserve that appeared to be very underweight and weak. It was first spotted in the reserve on July 1st, and a few more times following. Marine mammal rescue notified us of the sightings earlier this week, and we were able to find the animal where it had originally been reported by a local eco-tourism company. With the assistance of DFO, they were able to make the journey from Vancouver to RR on Thursday July 9th, but unfortunately they weren’t able to spot the sea lion, and we have not seen it in the reserve since July 8th.
  • The seagull hatching is in full swing! There are now many chicks in various stages of development.
  • The goslings and their parents left for their first swim on the ocean yesterday at slack tide, but we haven’t seen them return. We wonder if they got caught in the stronger currents or perhaps made the journey to shore.
  • There are a few more sea lions in the reserve this week, roughly ten stellar sea lions on middle rocks.
  • We have had some low tides this week in the middle of the day, making for a great opportunity to explore the intertidal- photos below!

Gentle Winds and Plentiful Wildlife

Weather:

  • Visibility 15+ NM
  • Sky partly cloudy
  • Wind 5-10 knots N
  • Sea state: Calm

Visitors/Boats:

  • Yesterday Laura and Greg came at low tide to deliver fuel and for Laura to teach her online class.
  • Greg came this morning to deliver a load of fresh water which we pumped into our storage tank with the fire pump and hoses.
  • Today we saw a dive vessel in the reserve but no divers. They were fairly close to the wildlife but the sea lions did not seem particularly bothered.
  • One small pleasure craft hovered just outside of the reserve for the majority of the day. They were too far away to see what they were doing, but usually boats like this are fishing.

Ecological:

  • The small seal pup is still here, but she has become more adventurous over the past week. We have seen her napping on the east side of the island, and beside the decommissioned diesel tank on the west side.
  • The sea lion population continues to grow, and so does the smell! We will need to set up more fencing soon before they begin to take over the island completely.
  • The pair of crows that we have been seeing returned today and spent most of their day at Race Rocks.
  • We have continued to observe bald eagles in the reserve. We enjoy watching them swoop overhead and cause a stir amongst the seagulls.
  • One of the seals that we have been joined by over the past weeks was also spotted here in December (juvenile female V173). We are still waiting to hear from the researchers who tagged her to see if there is anything interesting to learn.
  • The elephant seals activity has been uneventful as they continue to moult. They spend their days napping and lounging on our “lawn” or wiggling down to the jetty to soak in the shallow water (and perhaps relieve the itchiness of all that peeling fur!).
  • At low tide yesterday we spotted many neat creatures in the exposed pool on the east side of Great Race Rock: urchins, anemones, crabs, fishes, chitons, barnacles, and tubeworms!

 

March 30 and 31

Wind: yesterday variable 4-40 knots, today W 3-25 knots
Sea State: yesterday up to 1 m chop, today rippled
Visibility: yesterday 10 NM, today 15 NM
Sky: yesterday partly cloudy with rain in morning, today clear
Temperature: yesterday 5-8 °C, today 5-7 Â°C
Atmospheric CO2: 415.65 ppm (recorded by NOAA at Mauna Loa Observatory, Hawaii)

I took soundings on all the water and fuel tanks as well as other notable measurements for the month end report. Here are some of the numbers. The desalinator produced 6,650 L of water, which was used mostly for pressure washing the buildings and other cleaning. 540 L of diesel was used to run the generator to top of the batteries, when there wasn’t enough sun to charge the solar panels. The generator ran for 141 hours over the month, for an average of 4.5 hours/day. There were 24 visitors (16 unique visitors) to the island over the course of the month.

No boats were seen in the ecological reserve over the past two days.

See the gallery below for views around the island.

Exciting Sightings

Wind: yesterday 0-31 knots from W to E to N, today 10-17 knots from N-NE
Sea State: yesterday rippled, today rippled with chop up to 1 m in morning
Visibility: both days 10-15 NM
Sky: both days clear
Temperature: yesterday 5-7 °C, today 4-6 °C
Atmospheric CO2: 413.85 ppm (recorded by NOAA at Mauna Loa Observatory, Hawaii)

There were some exciting sightings over the past two days. Just before sunset this evening, a pod of orcas was swimming in the current to the west of the island. There were at least five or six orcas of various ages.

This morning, between 20 to 30 pigeon guillemots were paddling through the Middle Channel, to the north of the main island. Some still have grey-ish heads of their winter plumage.

Yesterday one tour boat, two sailboats and three pleasure crafts passed through the ecological reserve. Today three tour boats travelled by the islands. No visitors were on the island.

The military was doing demolition training for the past two days on Bentinck Island.

See the photos below for sights from the past two days: