Tag Archives: bull kelp

Underwater Scenes

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Ecological Notes:

  • Sea Lion numbers range up and down daily. Have notice more smaller sea lions this year, and can hear the higher squawks of younger ones. Unlike last year, I haven’t found any nursing pups yet.
  • Barred Owl is still here. For a couple days, there were zero other birds on the top area of the main island (Canada Geese, Turnstones, Gulls, or Dunlins)….. but they are gradually returning now. I suspect maybe the Owl hunted extensively one night and scared them all away(?)
  • Humpback whales still visible daily
  • On one day, in addition to the Humpbacks, Southern Resident Orca passed south of the reserve heading west, and Bigg’s (Transient) Orca passed heading East. While they were too far to get photographs, both groups were visible by eye (once I located them with binoculars)

Visitors:

  • Group of students and instructor from Pearson College visited for the weekend. They were primarily interested in mapping the kelp forests and how they are affected by Urchins and Sea Otters. They helped with other projects and used the ROV to view the underwater area off the jetty.

Siri, Finn, Maria, Annabelle, and Edgar

Always curious!

Sea Urchins

Young Bull Kelp

  • Contractors to work on the main house windows

Facility Work:

  • Now able to start bucking logs from the ramp area and moving to the full bucking area for firewood.
  • Cleaned and prepped the science house for the students visit
  • Did another full sweep of the main island to remove dead gull carcasses
  • Contractors continue the finishing work on the newly installed windows, moving primarily to the sills and finish on the inside.

  • Communicating with DFO in regards to the salinity measurements. They seem high, even though the meter was recently replaced. Tested with a meter owned by Pearson College and that meter showed numbers I would be expecting.
  • Ongoing spray down of walkways and decks to reduce slim and algae, but wondering if the cooler weather is reducing the effectiveness of the spray(?)

Noted Vessel Traffic:

  • Continued visits by Eco- Tourism vessels
  • Some private vessels transiting, some pausing to enjoy the nature in the reserve.

 Noted Infractions:

  • No attempted fishing detected
  • Transit and departure speeds all good

Weather Events:

  • Winds pretty consistent NNE 10-15 Kts
  • Mixes of partial cloudy, and some fog at night
  • Temperatures ranging 4 to 7 degrees

 

 

** All wildlife photos taken at the furthest distance possible, and may be cropped to improve detail! **

 

Weather – Current:

http://www.victoriaweather.ca/current.php?id=72

 

Weather – Past:

http://www.victoriaweather.ca/station.php?

July 13 and 14 – Weekly Census

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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.

July 11 and 12

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Ecological Notes:

  • I believe most of the gulls eggs have hatched, based on the nests I can see with one to three chicks and discarded empty eggs nearby. The gull parents feed fish to their young. I am impressed how many whole little fish a gull catch then regurgitate for their chicks.
  • I am seeing more nursing harbour seals and pups around the south and east sides of the island. Today, I heard a pup communicating with its mother by little grunting sounds.
  • This afternoon, out of the corner of my eye, I saw a river otter scurry along a path by Tank Shed. I could not see if it was heading for the water or underneath the boardwalk, as they are elusive.
  • See the photo gallery below for more ecological happenings from the past two days.

Weather:

  • Yesterday (July 11):
    • Sky: Clear
    • Wind: W 1-33 kts
    • Sea: rippled, then 2′ chop in evening
    • Temperature Low 11oC, High 20oC
  • Today (July 12):
    • Sky: Clear, fog between 08:45-09:30 with foghorn
    • Wind: W 16-39 kts, gusts up to 44 kts (81 km/h)
    • Sea: 1′ chop in morning, then up to 4′ waves in afternoon and evening
    • Temperature Low 12oC, High 15oC

Visitors:

  • Yesterday, Greg came from the college to refill the diesel tank.

Facility Work:

  • Scrubbed and squeegeed solar panels, routine tidying and checking infrastructure around the island. With the clear days, the solar panels have been fully charging the batteries.

Vessel Traffic:

  • Many Canadian and American ecotour boats have been nearby and heading through the waters of the ecological reserve. There were much fewer boats today, with the high winds.

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

August 30

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Wind: variable 1-18 knots
Sea State: calm in morning, rippled  in afternoon
Visibility: 10-15 NM
Sky: clear, overcast and rain in evening
Temperature: 11-14 °C
Atmospheric CO2: 411.94 ppm (recorded by NOAA at Mauna Loa Observatory, Hawaii)

Here are some sights from around the island today:

August 28

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Wind: W 16-37 knots
Sea State: calm in morning, up to 1m waves in afternoon and evening
Visibility: 0-15 NM
Sky: fog in morning and evening, clear in middle of day
Temperature: 11-16 °C
Atmospheric CO2: 411.60 ppm (recorded by NOAA at Mauna Loa Observatory, Hawaii)

There were two visitors mid afternoon from Pearson College to drop off supplies.

Here are some sights from around the island 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.

 

March 18 – Divers Clean the Underwater Camera

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Sunny
Wind: SW 5-14 knots in the morning, NE 5-9 knots in the late morning to afternoon, calm in the evening
Air Temperature: Low 7.8°C, High 10.7°C
Ocean Temperature: 8.8°C

Nine students came this afternoon with Courtney, Laura and Nazim to dive from the jetty. The seven divers were in groups of two and three for 30 minute dives. The others provided support from above.

Bader and Sean dove together and followed the cable out to the underwater camera, which lies at a depth of 12m of water out from the end of the jetty. They cleaned the plastic dome, which had become dirty with diatoms. See the photos below.

The divers mentioned seeing lots of vivid colours and amazing species including: urchin, anemone, rockfish, greenling, rose star and bull kelp.

Up on land, there was lots of vitamin D to soak up today while doing outdoor tasks: chopping firewood, stacking firewood, sweeping and tending to compost.

There was one fishing boat seen passing through the reserve today.

Nereocystis luetkeana- Videos of Kelp

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Kelp and color. At the end of a live underwater video session, I inadvertently left the camera “on while I was waiting in the kelp bed off the jetty at Race Rocks Ecological Reserve.  It was a sunny day and the effects created by the sunlight streaming through the canopy of the forest gave this interesting effect.” GF-2003

Note: The video pauses on each clump in order to have a better view.

When Race Rocks was declared Canada’s first Marine Protected Area, Holly Arntzen offered Pearson College the opportunity to use some of her songs as video backgrounds. Her CD entitled “The Salish Sea” is about the fading beauties of the oceans and it stresses the importance of their protection.
Using the song “Saltwater” as a background, this video shows images of divers and the bull kelp, Nereocystis leutkeana, a species of brown algae present in high density throughout the summer and fall at Race Rocks. Their lamina provide a special protective canopy for a delicate ecosystem with many species of invertebrates and fish under their canopy. This video was filmed and edited by Jean-Olivier Dalphond (PC yr26) and Damien Guihen (PC yr27) in June 2001.

See the Taxonomy File on Nereocystis

Nereocystis on the beach

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Organisms are often involved in modifying the environment. The images in this file were taken in December 2006 after a strong north east wind pounded the lower end of Vancouver Island with the result that many Nereocystis ended up on local beaches near Race Rocks. Their stipes, lamina and holdfasts formed long twisted drifts of kelp, some of which would later decompose, adding to the energy flow from the marine ecosystem. Moreover, the presence of many kinds of materials carried along by the holdfasts provide an interesting insight into what contributes to accretion or buildup of materials along a coastline. (Che waits patiently while is master picks up seaweed!)

 

 

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Go to the taxonomy file on Bull kelp, Nereocystis leutkeana

Saltwater Images of Race Rocks and music of Holly Arntzen

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When Race Rocks was declared Canada’s first Marine Protected Area, Holly Arntzen offered Pearson College the opportunity to use some of her songs as video backgrounds. Her CD entitled “The Salish Sea” is about the fading beauties of the oceans and it stresses the importance of their protection.

Using the song “Saltwater” as a background, this video shows images of divers and the bull kelp, Nereocystis leutkeana, a species of brown algae present in high density throughout the summer and fall at Race Rocks. Their lamina provide a special protective canopy for a delicate ecosystem with many species of invertebrates and fish under their canopy. This video was filmed and edited by Jean-Olivier Dalphond (PC yr26) and Damien Guihen (PC yr27) in June 2001.