Sea Lion Thermoregulation

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.

Pinnipeds galore

There was a moderate breeze for most of the day.  The barometer dropped slightly throughout the day. There was a low cloud cover and occasional light rain.

There was only one whale watching boat seen in the reserve today.

Two juvenile bald eagles took the rocky perch on the South Islands that was occupied by the adult bald yesterday morning.  Occasionally one of the eagles would assert its authority over the gulls by flying around Great Race and sending the thousands of gulls skyward into a panic.

The pinnipeds are still occupying the reserve in large numbers.  Perhaps wanting solitude from the cacophony of sea lion barking, a lone california sea lion parked itself in the middle of the island for the whole day.

This afternoon, a group of five harlequin ducks were hanging out by the kelp beds to the west of the jetty.

It looks like I'm not the only one excited about the arrival of the new desalinator pump.  This California sea lion spent the whole day in the middle of the island.

It looks like someone else is also excited about the arrival of the new desalinator pump. This california sea lion spent the whole day in the middle of the island near the desalinator bunker.

A male elephant seal making a splash.

A male elephant seal making a splash.

Flake, the elephant seal, flaking out on the ramp near the tank room.

Flake, the elephant seal, flaking out on the ramp near the tank room with the lighthouse in the background.

A cuddle puddle of elephant seals. Notice the two tags on the seal in the foreground: 7688 and 7625.

A cuddle puddle of elephant seals on the boat ramp. Notice the two tags on the seal in the foreground: 7688 and 7625.

A Good Day for the Birds

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

Clear Skies

As the daylight broke, the fog began to burn off near the entrance of Pedder Bay and to the west of Race Rocks. The wind rose slightly throughout the day to a medium breeze of 11 knots in the evening. Clear skies prevailed through the day as the barometer rose slightly.

Maintenance tasks were performed throughout the day, giving me a chance to spend lots of time outside: painting, tidying, sweeping, cleaning the solar panels, and topping up the batteries with the generator.

There were ten boats in the seen in the reserve. Several whale watching boats passed by. The Juan De Fuce Warrior from Ogden Point Dive Centre spent a few hours with two groups of divers. Two boats from Royal Canadian Marine Search and Rescue (RCMSAR) Station in Sooke passed through Middle Channel at noon. A sailboat went against the current through Middle Channel at 15:30.

Divers from Ogden Point Dive Centre with curious California Sea Lions looking on

Divers from Ogden Point Dive Centre with curious sea lions looking on

sailors

A sailboat heads northeast by Middle Rock

Elephant seal

Flag at half mast with the sunset in the background

Shift Change

The wind was blowing northeast this morning 20 – 25 knots, it dropped mid-afternoon for about an hour and then swung to the west. The west came on strong in the late afternoon and blew over 25 before settling down to 15 -20 knots. The barometer, which has been falling all day, started climbing at 19:00 and the forecast for tomorrow is looking better with light winds forecast.
There were only two whale watching vessels spotted in the Ecological Reserve today. There were no other vessels other than Second Nature dropping off Nick Townley the new eco-guardian and Pearson College student Riikka who is here to finish her project week.
The results of the census are as follows:
Steller Sealion 447

California Sealion 433

Northern Elephant Seal 16

Harbour Seal 17

Canada Goose 24

Greater White-fronted Goose 1

Double-crested Cormorant 324

Pelagic Cormorant 29

Brown Pelican 2

Black Turnstone 12

Sanderling 3

Dunlin 4

Black Oystercatcher 24

Killdeer 4

Glaucous-winged Gull 700

Thayer’s Gull 2400

California Gull 3

Western Gull 45

Heerman’s Gull 76

Fox Sparrow 1

Savannah Sparrow 11

Most of the work today was packing, cleaning,  and training Nick in preparation for departure tomorrow.

Mega-fauna Draw

It was another north-northeasterly day on Race Rocks. There was even some sunshine during the late morning and early afternoon but it clouded over for the latter part of the day. The barometer is dropping again and the forecast is for windy, cloudy and wet.

The weather did not deter the hardy whale watchers and nine tour vessels were observed in the Ecological Reserve.

Meno and WW

Killer Whales, Humpback Whales, Steller and California Sealions, Northern Elephant Seals and Harbour Seals were also observed from the Ecological Reserve creating the draw for tourists.

Sealions lounging

Most of my day was tied up with supporting the water technician’s visit to repair the desalinator, briefing fending off Elephant Seals, stowing fire hoses and entering/organizing data. During my tower trip I was able to see all of these species and noted three new brands on Steller’s Sealions on MiddleRock.

Mian boat ramp

Sealions from west of 140W at Race Rocks.

It was another day of mixed weather at Race Rocks. Gentle breezes less than five knots, tended north to northeast all day. While the sea surface appeared calm, there was a big sea running that caused spectacular waves on the west side of the islands. The barometer rose until noon and then started to slip back down. Although it looks like rain coming on the horizon now, it was a fairly dry day while apparently pouring down over on the American side.

In spite of many Humpback Whales in sight from Great Race, the season must be winding down, as there were only five whale-watching boats observed within the Ecological Reserve and only one sports fisher stopped by for a look at the seals and sealions.

The interesting, new (to me), Steller’s Sealion brand of the day comes from almost as far away as yesterday’s George Island animal whose branding location was indicated by the ‘Y.’ Today’s ‘T’ stands for Marmot Island which is just off the southeast end of Kodiak Island. So both of these animals are from the western Alaskan Stellers Sealion population, west of 140 degrees west. The western population is considered to be endangered due to its inexplicably, declining numbers. How interesting that these guys are hanging out here, where there is a lots of food right now, far from home.

This branded Stellers Sealion was born on Marmot Island just off Kodiak Island, Alaska. He was branded as a pup, July 4, 2010.

This branded Stellers Sealion was born on Marmot Island just off Kodiak Island, Alaska. He was branded as a pup, July 4, 2010.

Second Nature, with Courtney at the helm, brought out the chimney specialists who cleaned and inspected the chimneys in both houses. A young Frenchman from Lille who is volunteering at Pearson College came along as well. I did some more trouble-shooting with the desalinator and called an expert for help. I strung the fire-hoses and fired up the Briggs & Stratton and pumped seawater into the cistern. The hoses are getting a nice fresh water rinse over-night.

Spot the Mian.

Weather was happening all around Race Rocks today but it was pretty nice here. There was a significant swell, which is nice to watch, unless you want to launch a boat. Across the Strait, on the American side, it was really pouring on the Olympic Peninsula especially in the Elwah Valley. Here, clouds came and went, it rained a little, it shone a bit and the barometer was actually up and steady after yesterday’s low. Forecast is for more of the same.

There were only two whale-watching boats observed in the Ecological Reserve today and one was a “new” catamaran vessel that I have not seen before, called “4-Ever Wild”.

Juan de Fuca Warrior spent the day with a crew diving in the Ecological Reserve most of the day again today. I forgot to mention that yesterday there were three happy kayakers enjoying a paddle in the Ecological Reserve and unwittingly getting a little too close to the sealions.

happy kayakers
Kayakers disturb sealions too

Some of the photos of sealions taken from the tower actually show Elephant Seals too. Can you spot the Elephant Seals in these two photos?
spot the Mian
spot the Mian2

I spent quite a bit of time troubleshooting web-cams, “watertight boxes”, power and ethernet lines, not very successfully, but maybe tomorrow. I changed both of the cartridge filters on the desalinator today. I worked on further organization of the brand, tag and entanglement data for both species of sealion and got some new photos of brands.
Zaca U255 Oct 20

The Steller Sealion in the background Euju 299Y was I believe, tagged on St. George Island in the Bering Sea. The Y refers to that location which is close to 5,000 kilometers away from Race Rocks. Looking for confirmation of this amazing voyage.

The Steller Sealion in the background Euju 299Y was I believe, tagged on St. George Island in the Bering Sea. The Y refers to that location which is close to 5,000 kilometers away from Race Rocks. Looking for confirmation of this amazing voyage.

The Tie That Binds

It was another northeast day, with really not much happening weather wise. It blew NE about ten knots, was mostly overcast in the morning, with some sun in the afternoon. The barometer rose gradually all morning and then started to slowly slide after noon. It is expected that tomorrow’s southeast will bring rain, starting late tonight.

The whale watching boats were busy in the afternoon with Humpback Whales to the southeast of Race Rocks and more activity out to the west. A total of eight tour boats were seen in the Ecological Reserve.

Today was mega-fauna census day and these are the results:
Steller Sealion 298
California Sealion 508
Harbour Seal 79
Northern Elephant Seal 9
River Otter 2
Canada Goose 22
Greater White-fronted Goose 1
Harlequin Duck 5
Double-crested Cormorant 61
Pelagic Cormorant 15
Black Turnstone 9
Surfbird 5
Black Oystercatcher 38
Glaucous-winged Gull 145
Thayer’s Gull 1482
California Gull 3
Western Gull 7
Heermann’s Gull 35
Gull sp. 52
Common Murre 1
Common Raven 2
Fox Sparrow 2
Savannah Sparrow 15

Here are a couple of shots of Surfbirds, alone and with Black Turnstones.

Surfbirds resting in the Jetty Bay.

Surfbirds resting in the Jetty Bay.

Subi & Bltu
The census was challenging due to the numbers and species of gulls and the fact that both Steller Sealion and Harbour Seal numbers were lower than expected during the morning count, so they were re-counted in the early evening. I generally like to count Harbour Seals on the morning low tide but the tide wasn’t really doing much today. The evening counts were higher for both the Steller and the Harbour Seals. Two new Elephant Seals arrived today. They are both moulting, the smaller one hung out with the dual tagged three year-old, which appears to be staying on. The bigger animals may have gone back to Middle Rock as there were still six animals visible there.

Ring-necked animals as well as tagged and branded animals were also re-surveyed today. I am still working on the branding data from a month ago. Two of the ring-necked Steller Sealions that have been observed since August are still here and languishing as the plastic straps cut into the backs of their necks. I am putting out an appeal to the disentanglement crew again.
Euju plastic_strap Oct16
Euju oct 16 close-up
The second ring-necked animal ‘highlighted’ here is also branded on its’ left side 946R. I believe that it was branded at its’ natal colony which from the R should be Rogue Reef in southern Oregon. From the number it was branded after 2009 but I will find out more.

If it is not lying on its' left side this ring-necked Steller's Sealion is easy to tell apart from the others.

If it is not lying on its’ left side this ring-necked Steller’s Sealion is easy to tell apart from the others.

Like the other Steller it has plastic strapping, which is visible on the ventral surface.

Like the other Steller it has plastic strapping, which is visible on the ventral surface.

This is a bit gory but I hope it will inspire the disentanglement team to come to Race Rocks.

This is a bit gory but I hope it will inspire the disentanglement team to come to Race Rocks.

The Atlin Post passed by Race Rocks today but did not slow. Must have been in a hurry.

The Atlin Post passed by Race Rocks today but did not slow. Must have been in a hurry.

Did not do much maintenance today other than the basic cleaning, making water with the desalinator and electricity with the generator.

Weather Day

A series of squalls and thunder showers turned Race Rocks into an emerald isle today.

A series of squalls and thunder showers turned Race Rocks into an emerald isle today.

Today was a weather day; we had all kinds. The morning fog was thick but lifted early and a westerly wind blew in squall after squall with dramatic downpours interspersed with glorious sunshine. The island had several good fresh water rinses, much needed after a long dry season.

Gulls lifted after the heavy rain and flew above the Davis Weather station drying their wings.

Gulls lifted after the heavy rain and flew above the Davis Weather station drying their wings.

There were dramatic cloud towers with thunder rumbles in the distance. Late afternoon the west wind simmered down to a steady 20 knots and the sky cleared. The barometer rose all day as it became nicer and nicer. A strong wind warning remains in effect for central Juan de Fuca and the outlook is for west winds, showers and increasing cloudiness Sunday and then a shift to southeasterly winds and rain on Monday.

Some of the whale watching boats seemed to be in a hurry today. The speed limit within 400 meters of the islets is 7 knots.

Some of the whale watching boats seemed to be in a hurry today. The speed limit within 400 meters of the islets is 7 knots.

It was a busy day for whale watching boats visiting the Ecological Reserve. A total of eleven boats were noted watching pinnipeds and more passed just outside the boundaries following the lags and watching Humpbacks just to the south and east of Race Rocks. Several of whale watching boats were pushing the boundaries of speeding in the reserve.

In a hurry? King Salmon of Great Pacific Adventures rushing through the Ecological Reserve at Race Rocks.

In a hurry? King Salmon of Great Pacific Adventures rushing through the Ecological Reserve at Race Rocks.

The usual dive boat spent most of the day in the Ecological Reserve doing multiple dives to the north of Great Race and finishing their last dive just off the jetty.

The Steller's Sea Lion would be a good candidate for disentanglement. He is robust and the strapping is not cutting into the back of his neck, yet.

The Steller’s Sea Lion would be a good candidate for disentanglement. He is robust and the strapping is not cutting into the back of his neck, yet.

Ecological observations were made throughout the day as opportunities arose.
I spotted a new (to me), entangled, Steller’s Sea Lion. It looked as though the culprit was plastic strapping again and there is a tiny glimmer of hope for the animal because, although the plastic had cut into the flesh of its throat, there was a bit of it unraveling and maybe there will be more. Again this would be a good candidate for disentangling because the plastic strap could easily be cut on the back where it was not embedded and because the individual is (for now) otherwise healthy-looking and robust enough to get into several scraps just finding a place to sleep.

If it wasn't so anthropomorphic, I might be tempted to suggest that these two are both saying do something, please.

If it wasn’t so anthropomorphic, I might be tempted to suggest that these two are both saying, ‘do something, please’.

 

You can see the extent of the injury being caused by the plastic cutting into this animals' neck.

You can see the extent of the injury being caused by the plastic cutting into this animals’ neck.

Alex and I took advantage of the downpours to collect rainwater in the wheelbarrow and wash outside windows. Alex made a sturdy, long handle for the squeegee and we worked as a team to clean and squeegee the exterior of the windows on both houses. The science house windows were still covered from gull breeding season, dive bombings and will benefit from a few more downpours which are on the horizon now. We tried to trouble-shoot the wind direction problems (again) with the Davis Weather system. Holding the vane at ninety degrees did not affect the reading on the console display. The usual chores regarding power, water and seawater sampling were also completed.