Tag Archives: california sea lion

August 19 – Fog

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Wind: W 4-23 knots
Sea State: rippled
Visibility: 0-15 NM
Sky: fog in morning, clear in late morning, partly cloudy in afternoon, then light rain in evening
Temperature: 12-17 °C
Atmospheric CO2: 412.58 ppm (recorded by NOAA at Mauna Loa Observatory, Hawaii)

The fog began to roll in after sunset yesterday. In the early hours of the morning just before 3:00, the fog got thick enough for the sensor part way up the tower to trigger the fog signal. Three high pitch blasts sounded every minute until 11:20, then the fog gave way to a clear sky.

The steller sea lion with the flasher from yesterday still has it hooked to its mouth and is still on Middle Rock, hanging out with a bunch of other sea lions. I spotted it through the partial fog this morning, but wasn’t able to get a good photo. This afternoon, it was facing away from the main island.

Greg came out in the late afternoon to deliver diesel. We are filling the various storage tanks around the island for the furnaces and generator, in anticipation for the cooler and darker months ahead. There will be more fuel delivered over the coming days, taking advantage of the calm seas.

Other maintenance tasks included trimming the plants growing over parts of the paths, cleaning the solar panels and using the chainsaw to buck up more firewood. I finally cut up a 15 metre log that I saw wash up in a winter storm. It was propped up on rocks in the East Bay.

See the photos below for sights from today:

August 18 -More Sea Lions

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Wind: W 15-29 knots
Sea State: up to 0.5m chop
Visibility: 10-15 NM
Sky: clear in morning, partly cloudy beginning in early afternoon
Temperature: 14-19 °C
Atmospheric CO2: 412.58 ppm (recorded by NOAA at Mauna Loa Observatory, Hawaii)

The groups of steller and california sea lions around the main island and on Middle Rocks have all increased in number. There were two noteworthy sea lions today. In the afternoon, I noticed a lone steller sea lion near the end of the jetty. It had a white and red flasher (fishing lure) hooked to its mouth. Unfortunately, this is a sight that is occasionally seen here. Just last week there was another steller sea lion with a pink and yellow flasher. That sea lion (branded O-19) has not been spotted since. The flashers could have had a fish hooked on the end, which was eaten by the sea lion, or the lure could have appeared to the sea lion to be a fish. The sea lion this afternoon, left the jetty when a large boat went by. A few minutes later, it appeared on Middle Rock where a group of about thirty sea lions were hauled out. I will keep an eye on this sea lion. If it stays around for a few days, it could be a candidate for a rescue from the Marine Mammal Rescue Centre.

When I spotted the sea lion with the flasher haul out on Middle Rock, I noticed a steller sea lion branded 975R. The R means it was branded at Rogue Reef, in Oregon. This animal has been seen here before. See Ecoguardian Anne Stewart’s post from April 6, 2015. The steller was branded as a pup in 2011.

There were about twenty-five eco tour boats that passed through the Ecological Reserve today, some of them repeats. They appeared to be viewing the hauled out sea lions, harbour seals and the floating in the kelp sea otter.

See the photos below for sights and happenings from today:

August 17 – Weekly Census

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Wind: W 19 to 33 knots
Sea State: up to 1m chop
Visibility: 10-15 NM
Sky: clear
Temperature: 15-21 °C
Atmospheric CO2: 412.54 ppm (recorded by NOAA at Mauna Loa Observatory, Hawaii)

Last night after the sunset, a lightning show began. There was at least one flash visible per minute when I was watching from about 21:00 to 22:00.  According to CBC News, there were 1,600 lightning strikes overnight across BC’s South Coast: https://www.cbc.ca/news/canada/british-columbia/august-lightning-weather-bc-south-coast-1.5689195

Weekly census results observed today:
33 steller sea lions
45 california sea lions
1 sea otter
313 harbour seals
1 adult bald eagle
1 Canada goose
3 pelagic cormorants
1256 gulls (approximately 2/3 glaucous-winged gulls and 1/3 california gulls)
4 black oystercatchers
53 pigeon guillemots
42 black turnstones
1 american pipit

There were many ecotour boats passing through the Ecological Reserve today and only a few fishing boats visible in the distance.

 

August 16 – Returning Sea Lions

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Wind: from NE in morning, SE in afternoon, W in evening – between 2 to16 knots
Sea State: calm in morning and rippled in afternoon
Visibility: 15 NM
Sky: clear
Temperature: 16-25 °C
Atmospheric CO2: 412.54 ppm (recorded by NOAA at Mauna Loa Observatory, Hawaii)

While I have only provided the conditions for today, I did step onto the Rock just after noon yesterday. It’s great to be back, having spent the whole winter and the first few weeks of spring here. I will be here for the next two and a half weeks, 100 days shorter than my last stint.

I feel very fortunate to be a part of the amazing team of Pearson students, alumni, staff, volunteers, donors and researchers who keep this Ecological Reserve going.

I spent yesterday afternoon and evening reacquainting myself with this wonderful place, practicing how to avoid disturbing the young gulls, who blend in well with the rocks as they like to hide beside the paths and in plants.

This weekend, there have been a lot of boats (pleasure craft and eco tour boats) taking advantage of the nice weather. The only visitor to the island, other than me, was Greg, who drove me out here from Pearson and brought back Mara and Kai.

In the previous log post, on August 13, a branded sea lion with an attached flasher (fishing lure) was mentioned. The steller sea lion is branded O-19. Bryan Wright, the Marine Mammal Biometrician/Project Leader at the Oregon Department of Fish and Wildlife, gave us an update on the history of the stellar sea lion:

He was captured and branded by us (ODFW, along with WDFW) at Bonneville Dam on the Columbia River on February 2, 2012.  We don’t know his exact age but he was probably 5-7 years old at the time of capture, making him 12-15 now.  He then wasn’t seen again until July 21, 2016, at Tatoosh Island off the tip of the Olympic Peninsula in Washington.  He was then next seen back at Bonneville Dam from August-November, 2019.

Bryan also passed along an interesting article that was just published called “California Sea Lion (Zalophus Californianus) Monitoring In The Lower Columbia River, 1997–2018” (Brown et al 2020). Click here to read the abstract of the article.

See below from photos from the past two days.

Census and a Beautiful Day

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Weather: 

  • Visibility 0-10 NM (some intermittent morning/evening fog)
  • Sky clear
  • wind 25-30 knots W
  • Sea state: rippled, whitecaps
  • A steep decline in humidity today helped dry out the island after a bit of rainfall

Neat Fact: The body temperature of seals is very similar to our own! Endothermic like us, they maintain an internal temperature of 36.5-37.5 degrees Celsius.

Marine Traffic/Visitors: 

  • Greg visited today to top up island supplies before the college vessel goes for regular maintenance
  • Not many boats today- around 5 eco-tourism vessels.

Ecological Observations:

  • Elephant seal V173 was not here today. We wonder if she was just stopping for a rest or if she will be back soon.
  • There have been very large groups gulls and also black turnstones migrating through, intermingled with a few surfbirds. There were so many today that we took a photo from the lighthouse in order to count them!
  • The pigeon guillemots seem to be nesting in full force. We have spotted many carrying fish into crevices on the west side of the island near camera five and also the rock walls on the east side.
  • The seagull takeover has seemingly started to ease and moving around the island is becoming easier day by day. The chicks are beginning to be able to escape the attacks of the rival adult gulls by flapping their wings and flying/hopping away.
  • On a slightly…mushier note (stop reading if you get queasy!): Yesterday we removed the gull that was eviscerated on our back porch. We let it sit for a few days to see if an otter would come back for it or if the gulls might take a nibble (neither occurred). We were surprised by the amount of maggots that had grown in only a couple of days, presumably due to the warm and humid weather recently.
  • The sea lion population is increasing every day and they are started to climb onto the main rock. It’s almost time to put up the electric fence or we will have unwelcome house guests!
  • The geese have suddenly left this week (all but 4). Interestingly, earlier in the week we saw a flock of 17.

Census: 

  • 4 Canada geese
  • 985 Seagulls (does not include chicks)
  • 84 Harbour seals
  • 1 Male elephant seal
  • 25 Stellar sea lions
  • 19 California sea lions
  • 88 Pigeon guillemots
  • 2 Bald eagles
  • 1 Humpback whale (in the straight)
  • 1 Brandt’s cormorant
  • 12 Black oystercatchers
  • 143 Black Turnstones
  • 1 Sandpiper ((?) will update with confirmed id!)

 

 

 

April 11 and 12 – Weekly Census

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Wind: yesterday W-S 0-32 knots, today W-SE 2-17 knots
Sea State: both days calm
Visibility: yesterday 10-15 NM, today 15 NM
Sky: yesterday partly cloudy then clear from mid morning, today clear
Temperature: yesterday 8-14 °C, today 7-14 °C
Atmospheric CO2: 416.33 ppm (recorded by NOAA at Mauna Loa Observatory, Hawaii)

The lawn in front of the house got busier this morning with nine elephant seals, two more than yesterday. A tenth seal, the pup, was near the jetty. The two new arrivals have green tags on their tail flippers. One is a male tagged C887. The other is a juvenile tagged G512 on the right flipper and E779 on the right. I will update the information on age and past sightings when I hear back from the researchers. The green tags signify the elephant seals were tagged at Año Nuevo, south of San Francisco.

[UPDATED April 13: I heard back from Dr. Patrick Robinson, the researcher from Año Nuevo Reserve. The elephant seal with green tags E779 and G512 was tagged as a pup in February 2019, where he was born at Año Nuevo. This is the first time the male juvenile has been spotted outside of Año Nuevo, where he was last seen as a weaner in March, 2019. The elephant seal with the green tag C887 is a juvenile male that was born at Año Nuevo in February 2017. He has been seen at Race Rocks in the month of December in 2017, 2018 and 2019.]

There was one boat seen in the ecological reserve on each of the past two days, a pleasure boat yesterday and a sailboat today.

Census results observed this afternoon at low tide:
10 elephant seals (1 female pup, 1 female juvenile, 1 juvenile, 2 sub adult males, 5 female adults)
16 steller sea lions
91 california sea lions
1 sea otter
72 harbour seals
5 bald eagles (2 juveniles, 3 adults)
16 Canada geese
1 black brant goose
99 gulls (mostly thayer’s)
17 pelagic cormorants
4 brandt’s cormorants
5 double-crested cormorants
6 black oystercatchers
24 pigeon guillemots
7 harlequin ducks
2 surfbirds
5 black turnstones

  • Two eagles on Turbine Rock and a colourful sailboat passing through Race Passage.
  • Newly arrived juvenile elephant seal tagged G512 and E779
  • Green tags G512 and E779 on the juvenile elephant seal.
  • Newly arrived sub adult male elephant seal tagged C887
  • Green tag C887 on the sub adult male elephant seal
  • Black brant goose
  • Four elephant seals waiting for the water to come to them
  • Newly arrived juvenile seal exploring the boardwalk
  • A view from the top of the lighthouse this afternoon of the clear water of the east bay. A group of sea lions can be seen on the rocks.
  • These lucky gulls won of the goose egg hunt

April 7 and 8

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Wind: yesterday W 0-34 knots, today E in am SE in pm 0-16 knots
Sea State: both days calm
Visibility: yesterday 10-15 NM, today 15 NM
Sky: yesterday partly cloudy in morning, clear onwards, today clear
Temperature: yesterday 8-11 °C, today 6-13 °C
Atmospheric CO2: 415.60 ppm (recorded by NOAA at Mauna Loa Observatory, Hawaii)

A sea otter spent most of yesterday afternoon in the South Channel between South Islands and South Seal Rocks. It ate clams, cleaned itself and rested on the rocks. When it dove underwater to grab some more food, I approached to get a closer view from an indent in rocks on South Seal Rocks. See the 16 second video below.

The last elephant seal pup appears to have left today. She was swimming in the jetty bay for most of the day. When I went out in the boat this afternoon, she was floating by the rocks to the north of the jetty bay. When I returned, she wasn’t there anymore or on the land. All three surviving pups left the island within a week of being three months old. The two others haven’t returned. Presumably, they are off feeding themselves after teaching themselves to swim over the past two months, since they weaned from their mothers.

I moved four wheelbarrows of the remainder of this winter’s supply of wood from the cupboards beside the Energy Building to the basement of the house. That wood should last for any cool or damp days of the spring or fall. I fixed some loose boards on the winch deck and boardwalk. Over the winter, the sea lions were rough on that deck.

A single blast was heard yesterday morning just after 11:00, coming from the demolition training area at Rocky Point.

One pleasure boat was seen in the ecological reserve this evening. The Race Rocks station boat was out this afternoon for a quick trip to Pearson College to pick up groceries.

  • Just a few big chunks of fir and skin around her middle remain to moult. T562/T653 is almost done.
  • Sea otter swimming in South Channel in the clear water, as seen from the lantern room of the tower
  • Deconstructed shore crab
  • Watching a sea otter from the south side of the island yesterday evening. See the video below.
  • The full moon rising yesterday evening just after sunset
  • When I headed out in the boat in the late afternoon, the youngest elephant seal pup was floating in the water by the rocks, near a resting california sea lion.
  • The view of the ecological reserve coming out of Pedder Bay, passing Bentinck Island.
A video of a sea otter cleaning itself on the south end of the island. A california sea lion pops up twice.

April 5 and 6 – Orcas

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Wind: yesterday variable 0-17 knots, today variable 0-22 knots
Sea State: both days rippled
Visibility: both days 15 NM
Sky: yesterday partly cloudy, today clear
Temperature: both days 5-10 °C
Atmospheric CO2: 416.03 ppm (recorded by NOAA at Mauna Loa Observatory, Hawaii)

Yesterday morning, I noticed a pod of at least six orcas on the western edge of the ecological reserve. They swam east through Middle Channel, passing just north of the main island. What a treat it was for me to watch them from the front porch. See the photos below.

The older of the two female pups has been gone for the whole day. She left the island at some point early this morning. It’s been 14 days since the oldest of the three surviving pups left the island. Perhaps the pup who left today is following the strict schedule, as she is 14 day younger than the male pup who left 14 days ago.

Today, there were three boats in the ecological reserve: two pleasure craft and one local whale watching boat with two people on board.

  • This gull managed to snatch an egg from a goose nest
  • The large dorsal fin of a male orca and a smaller female.
  • A younger male orca swims by two california sea lions.
  • Orcas swimming by a juvenile bald eagle. The shorelines of Esquimalt and Victoria are in the background.
  • The older of the female pups was resting on this spot above the goose nest for two days, before she went for a swim at some point this morning. Notice the calendula flower in her mouth.
  • This tulip, surrounded by grape hyacinth is taking its time to blossom.
  • Blue bells are starting to appear in a few place.
  • The juvenile elephant seal scared away the goose from this nest with two eggs. The goose came back after the seal left.

 

April 3 and 4 – Weekly Census

Gallery

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This gallery contains 6 photos.

Wind: yesterday W 15-40 knots, today variable 2-17 knotsSea State: yesterday up to 0.5m chop, today up to 1 m chopVisibility: both days 10-15 NMSky: both days partly cloudyTemperature: both days 4-7 °CAtmospheric CO2: 415.60 ppm (recorded by NOAA at Mauna Loa Observatory, Hawaii) … Continue reading →

Census Friday

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Wind: yesterday mostly from W 4-22 knots, today N-NE 2-9 knots
Sea State: yesterday calm in morning 0.5m chop in afternoon, today calm
Visibility: both days 5-15 NM
Sky: yesterday overcast with patches of rain and sun, today partly cloudy
Temperature: both days 6-8 °C
Atmospheric CO2: 415.43 ppm (recorded by NOAA at Mauna Loa Observatory, Hawaii)

Census results from today:
6 elephant seals (2 female pups, 1 female juvenile, 3 female adults)
21 steller sea lions
62 california sea lions
1 sea otter
91 harbour seals
3 bald eagles (1 juvenile, 2 adults)
12 Canada geese
6 brandt’s cormorants
4 double-crested cormorants
10 pelagic cormorants
59 thayer’s gulls
12 black oystercatchers
14 harlequin ducks
108 pigeon guillemots
56 surfbirds
26 black turnstones
1 killdeer
1 song sparrow

There were no boats in the ecological reserve over the past two days.