Tag Archives: Steller Sea lion

Getting Ready for the Census

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The northeasterly wind picked up to 23 knots in the middle of day, producing a choppy swell with frequent whitecaps.  Mixed with the inflowing tide, the standing waves off the end of the jetty became quite large.  The barometer dropped steadily.  There was a low cloud cover with a few scattered showers.

The Juan De Fuca Warrior from Ogden Point visited twice with two groups of four divers.

I prepared for tomorrow’s census by practicing my species identification and counting.  The numbers will be double checked tomorrow and revealed on the log.  The sea lions are proving difficult to count, due to their large cuddle puddles.  Where does one sea lion begin and the other end?

I checked the underwater camera twice today.  Both times there was a sea lion swimming across the screen just as it loaded, but I wasn’t fast enough to click the button to save the image.

Up on land, the california sea lion that was camped out by the desalinator bunker for the past two and a half days decided to move this evening.  It must have got tired of waiting for the new desalinator pump.  Don’t worry, it should be here by Friday.  Just before sunset, the sea lion waddled on all four flippers eastward over the salt water cistern and down the rocks to the water.  Taking many breaks along the 50m overland journey, it collapsed and exhaled large lungfuls of steamy breath.

Desalinator lion

Desalinator sea lion

These steller and california sea lions don't make it easy to count them.

The steller and california sea lion cuddle puddles don’t make it easy to count them.

A self loading self dumping log barge is towed towards the west past the reserve. Where is this floating forest from? Where is it going?

A self loading self dumping log barge is towed towards the west past the reserve. Where is this floating forest from? Where is it going?

Sea Lion Thermoregulation

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The barometer rose steadily throughout the day as a moderate westerly breeze whipped across the reserve. The clouds parted mid morning to bring an afternoon of sun and a high of 13.1 oC.

The solar panels weren’t the only things soaking up the sun’s rays. Sea lions were floating in small groups with one or all four flippers exposed to the air, using thermoregulation to their advantage. The sun warms the seal’s flippers, which are poorly insulated, then the warmed blood is pumped throughout their body.

One whale watching boat was seen in the reserve, after they spotted humpback whales surfacing a few kilometres to the east of the Race Rocks.

Courtney visited on the Second Nature to give a quick lesson on some of the mechanical systems on the island.

Maintenance tasks were performed today: running the generator, cleaning the solar panels, tracking down equipment and parts, figuring out how to use the equipment, vacuuming, flag care, and sweeping the paths.

Sea lions thermoregulating by sticking a fin out of the water.

Sea lions sticking flippers out of the water for thermoregulation.

A Good Day for the Birds

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As the sun rose, the wind and sea were calm. The wind picked up throughout the morning to become a moderate breeze with light rain and choppy seas during the afternoon. The barometer rose during the morning and dropped slightly in the afternoon, levelling out at 1014 hPa in the evening.

Eight boats were seen visiting the ecological reserve: 4 whale watching boats, 1 pleasure craft, 2 visits from SCUBA divers at Ogden Point Dive Centre and one boat from Pearson College to pick up Rikka, a student who was visiting for the last four days.

Maintenance tasks were performed today: chopping driftwood for the fire, daily seawater salinity test, running the generator and cleaning the houses.

Two crows were making their rounds on the reserve throughout the day. A juvenile bald eagle flew around Great Race at 0800, landing on Turbine Rock. An adult bald eagle landed on the high point of the South Islands at 1345 and took watch for an hour.

A bald eagle and sea lions on South Islands

A bald eagle and sea lions on South Islands

Bigg’s Killer Whales Kill in Reserve.

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The barometer rose all day and so did the westerly winds, so by the time the tide started to ebb, the opposing forces made spectacular waves. Tonight is the last full moon of the summer and it is in perigee, closest to the Earth, so it appears to be a big one, marking the third of a trilogy of super-moons we have been enjoying. It also means bigger than usual tides, making things seem even more dramatic. It was clear all day, no fog, but there are low clouds sneaking in along the Olympic Mountains and the look of fog out to sea. The westerly is supposed to be a little tamer on Tuesday.

Twenty-one tour boats were noted in the reserve today as well as one dive charter boat. A couple of the whale watchers looked like they were pushing the speed limit in the reserve and pushing the marine mammal viewing regulations outside the reserve. No illegal fishing was observed.

I am adding photos to the sea lion branding/tagging observations and that will make the data much more rigorous. Another entangled, aka ring-necked California Sea Lion was photographed. This time it looked like plastic strapping cutting a deep and infected wound.

Bigg’s Killer Whales visited again today. It appeared that they chased Steller Sea Lions all the way here from at least Albert Head. It was very dramatic here as they wove in and out of the kelp and through the tidal rips and standing waves, going with the tide and at great speed. One exhausted male Steller’s hauled out just as the chase was passing and he looked as though he may have been part of it all. He collapsed in a heap and immediately went to sleep. He was the lucky one. The kill happened in the reserve, just southwest of Great Race. There appeared to be a fairly small baby in the family of whales. The group was purportedly the T-61s (not sure of the source however). I tried to take photos so will report back with verified identification information once that comes in.

I finished some more of the set up to protect the ‘Science House’ today and started to clean out the northwest entrance to the generator room. There is a lot of very satisfying cleaning here, when you sweep you really get results, today it was many, many, generations of Ligia pallasii exoskeletons. Wow it’s a moult room instead of a cloak room.

What’s your number?

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It was a day without fog at Race Rocks and as the westerlies continue, some serious clouds can be seen piling up on far horizons. The barometer rose all day, which bodes well for tomorrow but there may be a few needed showers.

It was a busy day on the water with 26 whale watching boats visiting the reserve. From the expressions on the tourists’ faces, they seemed to enjoy watching the sea lions. All the skippers were respectful except for two travelling together who did not heed the go-slow zone.

There were so many recreational fishing boats that I could only keep track of the ones who were in contravention of the DFO Rockfish Conservation Area closure which runs around the reserve at a 40m depth. Many of those fishing inside the boundary were in rental boats but some of the other speed boats were doing what they do best…speeding. The Pedder Bay Marina is really good about talking to folks who rent from them and informing them about the conservation area.

I looked for tagged and branded sea lions again today and can report another nine California Sea Lions and four Stellers’ Sea Lions bringing the total number of branded individuals sighted up to 29. Eventually we will know a bit more about their stories from those numbers they carry. There are also two Stellers with neck rings cutting into their flesh and one with a flasher hanging out of its’ mouth. There are individual Harbour Seals, as well as both species of sea lions with major wounds. Speaking of wounds, there were two new, (to me), very small Elephant Seals on the ramp today, probably young of the year, judging from the size.

A few Pigeon Guillemots are still carrying into fish into the large boulder area by the jetty. The chicks must leave for sea at night as I haven’t seen any on the water and most are probably fledged by now. Each day, there are more Pelagic and Double Crested Cormorants roosting on the southwest side of the island.

The desalinator worked for a couple of hours during the sunshine today, making fresh water thanks to the solar panels.

Month end inventory was conducted today with measurements taken of all the fuel, fresh water, and equipment run times recorded.

My other task was to try and stake out a small territory on the jetty so that I can come and go and do the sampling. The elephant seals are no problem, they just sleep as you pass, or open one eye. Keeping the more belligerent California sea lions off the jetty seems to be a losing battle and has made getting out to the end of the jetty to sample seawater, extra challenging.

Injured Steller Sea lion

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Clear skies. Strong West winds. Force 6-7.
Barometer was rising most of the day, started to drop around 1200. West gale warning continues for tomorrow as a low pressure moves towards the mainland.

9 tour boats
2 recreational boats passed through the reserve

Yesterday, around midday, an injured Steller Sea lion arrived at Great Race. I saw it swimming through the current below the West cliffs while I was looking for transect pegs. It sussed out the boat ramp (which was full of Elephant seals) and then settled just East of the boat ramp, not far from the crane. It was in the same spot this morning, and stayed there all day. It has a salmon flasher caught in its mouth, and large wounds on both sides. Garry Fletcher suggested it might be an injury from a shark or orca bite. A lot of tour boats have gone through the reserve these past two days, right past this Sea lion, so I expect that it has been thoroughly documented in many people’s vacation photographs.

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