July 5

Northwest winds peaked at 15 knots around noon. Overcast skies with some rain near noon.

There were a dozen recreational fishing boats on the east edge of the reserve this morning but a total of five actually passed through today. 6 whale watching boats were in the reserve.

The two male elephant seals have barely moved at all today. While taking the seawater sample this evening, a young harbour seal pup was murmuring lightly while finding its way through the kelp bed off the end of the jetty. The oystercatcher eggs near the jetty have yet to hatch.

A group of 4 kayakers from Port Angeles stopped at the island today for a quick rest before continuing on their way to Victoria.

Installed the VHF antenna today in the guest residence.

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Pictures

Clear skies. Moderate West in the am, Force 3. Strong West this evening, Force 6.
Barometer rose until 1600, then dropped. The daily West wind cycle continues, light in the am and picking up in the pm.

3 tour boats

The Race Rocks website says that there are typically 6 Oystercatcher nests on Great Race, I have only found two. Tomorrow I will see if I can find more. The Oystercatcher nest next to the jetty no longer has eggs in it. A bird was sitting on the nest yesterday when I showed the nest to my Mom. If I had to guess, I would say that the River otter ate the eggs because it lives under the walkway very close to the nest. I am curious to see if the pair tries another nesting site. I saw two Oystercatchers poking around the rocks on the West side of the jetty so maybe they will try again. There has been a lot of Eagles around lately. Juveniles and adults. My Mom saw one empty the eggs out of a Gull’s nest. Apparently Glaucous winged Gulls can learn to recognize particular people, to a point where they will allow familiar researchers right up to their nests. My new plan is to befriend the Gulls that are nesting next to the tank shed and maybe they will stop flying at my head whenever I walk past.

Continue reading

kayak disturbance, tagged e-seals, pup, etc

Wind has varied between W and NE less than 20 NMPH over the past few days.  We have had some patches of fog during the week and partly clear skies today and yesterday.

On the 15th a group of 20 kayakers passed through the reserve on the East side heading West.  They passed on both sides of East rock and caused one of the largest sea lion disturbances I have seen here, several hundred sealions scrambled into the water.  I was able to talk to one of the kayakers as they passed by the south side and told him that they are not allowed to cause this kind of disturbance to marine mammals at race rocks. Though I love kayaking and prefer kayaks to motorized vessels, kayakers need to realize that because they are so nice and silent they can also easily surprise wildlife.  Once startled sealions stampede and can easily trample younger sealions or injure themselves rushing over the jagged rocks.

1 dive boat in the reserve today, 1 eco tour in the afternoon, 1 sports fishing boat in the morning which traveled too close to sealions on the East rocks. I called Pedder Bay Marina and gave them the ID number and a description and asked them to talk to the operator about regulations at Race Rocks (thanks Pedder Bay Marina!).

The elephant seal pup seems to be in good shape and is drinking milk regularly. Chunk seems fairly well behaved, a few times a day he we will arise from his slumber and chase after Bertha. Sometimes it seems he is trying to separate her from the pup and restrain her. I have seen him with his mouth around the pup’s head as well as with the pup partly underneath him though on all occasions I have observed he has clearly not harmed the pup when he easily could have. Chunk went off the island last night, I assume to middle rock and was back in the morning. There are two elephant seals on middle rock, both fairly large, one possibly a young male. I have been hearing what sounds like a male’s call coming from middle rock today. There were also two smaller scruffy, moulting female elephant seals in the shoreline of the main island today one tagged green 7502 the other tagged pink N93_ the last number is not visible. That brings the current e-seal population to 7.

Past week maintenance:
-cleaned solar panels daily
-flushed media filter on desal
-changed pre-filters on desal
-troubleshooting cam 5 with help from Jonathan, replaced POE unit. took measurements to replace leaky cable housing at base of cam stand
-ran desal x2
-ran fire pump
-replaced leaky hydraulic line on crane, pressure tested line
-cut, chopped, stacked fire wood
-replaced fire extinguishers which had been sent in for annual servicing
-brought temporary fire extinguishers off island for servicing
-troubleshooting of failed internet system with help from Jonathan
-swapped out 1 propane tank on main house

Visitors this week:
-on the 15th Erik came with a guest to drop off supplies
-on the 16th Erik brought Jonathan out to replace switch in the tower as well as the Marine sciences class for a field trip (12 students and Ann)

Disturbance from Kayaks at Race Rocks Ecological Reserve

Kayaks are frequently a problem in the reserve, as kayakers seem to think they are so environmentally friendly that they can approach the bird and marine mammal areas without causing disturbance. We believe from our observations however, that kayaks are in fact the most disruptive form of transportation around the islands. Their quiet, stealthy approach to within the flight distance of the birds and mammals often leads to a greater stampede effect when the kayaks are noticed. There must also be continued enforcement of speed limits in the reserve, and a total exclusion is recommended for all motorized ski craft, before it becomes an issue.Link to the Ecoguardians posts which demonstrate the Problem with Kayaks
All of the margins of the islands are especially sensitive when seal pupping takes place from April to August. In particular, the channel to the south of the tower must be off limits to all boats. Harbour seals and cormorants especially are spooked at any time of the year when kayaks or other boats approach. Research has been done on this problem by Trudy Chatwin. It is available here: http://ecoreserves.bc.ca/category/17+management/entitled How Close is too close and Development of Scientifically base Guidelines for Viewing Seabirds
On February 3, 2007, the cormorants in the photos below on the left were suddenly disturbed by kayakers approaching too closely to the shore of Race Rocks . An observant viewer on the cam 5 robotic camera sent these photos with the comment: ” There was a sizeable group of cormorants with those seagulls and suddenly they took to the air – I thought it was an eagle approaching but it was the paddlers, so they did indeed scare the birds.  The first picture was taken a few seconds before the kayaks were seen.”.

Distance between the main islands. This map shows the 100 metre zone around areas of marine mammal haulout and seabird colonies. This is the recommended minimal viewing distance. See DFO regulations

Return to the file on : Index of Disturbances of the Ecosystem at Race Rocks
Link to: Updated Draft of the Marine Mammal regulation  (DFO)

birds

Morning fog. Moderate East wind. Sunny the rest of the day.
Tour boats: 4

It seems that, as the sea lions are leaving, more gulls and birds are moving onto Greater Race Rock. There have also been a lot of dense groups of gulls and diving birds on the water in and around the reserve.

The juvenile elephant seal with scabby molt (aka ‘Cranky Pants’) has returned to the boat ramp. Her skin has healed up a bit since she was last here a few weeks ago.

Kayakers next to South Rock

Kayakers next to South Rock-This kind of approach regularly scares birds and the seals and sea lions form the rocks.

-took the boston whaler in, traded it for a zodiac
-loaded the boat dolly onto Second Nature with Erik
-ran desalinator
-cleaned and scraped the zodiac
-tidied basement

Animal Visitors

Yesterday two Whimbrels were seen on the south shore of Great Race and this morning a posse of California Sea Lions was swimming about South Rocks barking in their distinctive manner. Garry alerted me to another weaner elephant seal pup on West Rocks. Today we have 5 e-girls here at the station: Bertha, Squall, Divot (she has raw sores/holes in her skin but seems otherwise healthy), Goat (this one crawled up to the weather station in  the middle of the island), and 5086 (Fifty/Fiddy) whom I believe we first saw in December. I had thought Squall had left as I didn’t see her for a few days but turns out she had crawled up into the boathouse to get some peace and quiet!

Plenty of recreational fisherfolk are fringing the reserve. I suppose it makes a cunning sort of sense to hunt near the place where most of the fish are, but there is a self-serving element to that way of thinking that is reflective of why we need to have parks, reserves and preserves in the first place! Personally I prefer finding my dinner on the shore within the intertidal zone where I can be sure of what I am catching and can ensure there are plenty left to restock the locale. Unfortunately for me I won’t be eating creatures from the reserve though!

Today 6 kayakers lingered for quite a while at Middle Rocks; the Sea Lions didn’t like it and went in the water. We think of kayaks as benign but i have found that most animals prefer to know when the humans are coming and kayaks allow us to sneak up on them, ironically causing more panic than a motorized vessel. Yesterday I observed a huge submarine pass within 2 miles of the island. I reckon it was a Trident nuclear sub as it was escorted by the American Coast Guard. I can’t imagine the Sea Lions liked that either!

Kayak Disturbance a Continuing Problem at Race Rocks

‘2011-03-22′, ’11:50:03’, ‘Too Close: — 2 kayaks: Two gentlemen, one wearing orange in a black kayak the other wearing red in a yellow kayak entered the reserve to surf the strong ebb currents.  Their course took them within 1m of the rocks, grazing submerged rocks on the E side of Great Race.  Their recreational activities disturbed  Harlequin ducks (6), Pigeon guillemots (21), and Black Oystercatchers (2) who were foraging in this area., ‘Ryan Murphy’, ’11:53:53.