Tag Archives: Orca

Killer Whale?

Underwater orcaSitting and waiting is often one of the best strategy during a whale-watching safari. Orcas like their cousin dolphins are curious and will often approach a boat if it is stationary and quite.  This orca is on its side looking at the boat as it passes by if it weren’t its dorsal fin would be visible above the surface. Not an every day occurrence but often enough to get good pictures.

 

Blackfish in green water

Orca and glacial waterBlackfish, aka Orca, or more commonly, killer whale – a creature that inspires awe in BC boaters. “Blackfish” is what the coastal Kwakwaka’wakw band (First Nation’s peoples) the original inhabitants of the Northern Vancouver Island area in British Columbia called the orca.  In fact one area most frequented by the orca is known as Blackfish Sound.  However, this photo was taken in Knight Inlet as indicated by the colour of the water. Knight Inlet is fed by fresh glacial water and this “floats” on the salt water.  The rock flour, or glacial flour, consists of fine-grained, silt-sized particles of rock, generated by mechanical grinding of bedrock by glacial erosion. Those rock particles or glacial milk refract the green spectrum of the sun’s light so it appears green.

 

Orca while whale watching

Resident OrcaResident male orca

Click photo to enlarge

The resident orcas arrive in the area adjacent to the East Coast of Vancouver Island in the Johnstone Strait normally by the start of July and remain in the area through October.  The residents are the salmon eating orca. The transient orca, mammal eaters, is in the are all year but spend much of their time is the inlets away from much of the marine traffic. R. W. Baird says “Membership in each (group) begins at birth and cultural bonds and identity continue throughout life. Residents and transients differ in diet, vocal traditions, habitat range, morphology (shape of dorsal fin, etc.), pigmentation patterns (such as the eye patch) and genetically. Though they cross paths routinely throughout the inland waters of BC and Washington State, the two forms are becoming, or by some accounts are already, separate species. DNA work indicates that they have not interbred for at minimum one hundred thousand years.” This great photos provided by Marc and Solange Edouard from France are of two female resident orcas and a lone male.

 

Orca in a rest line or sleeping

Orca pod resting
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The website “eHow” provides the best explanation of “How Do Killer Whales Sleep?”“Like dolphins, killer whales are voluntary breathers, meaning their breathing is not automatic like it is for humans. Instead, they must consciously rise to the surface and breathe. This makes sleeping for them much different than it is for other animals. Studies on dolphins and beluga whales have shown that they sleep by shutting down only one hemisphere of the brain at a time, thereby allowing them to both rest and have control over their breathing. It is thought that killer whales, being closely related to dolphins, do the same thing. Resting behaviors differ depending on whether the killer whale is by itself or part of a pod. If it is alone, it will rest by staying near the surface, with dorsal fin, blowhole and part of the head out of the water. Usually this only lasts for a few minutes at a time, but there have been reports of killer whales resting this way for up to eight hours.Killer whales in pods sleep differently. The pod will form a tight circle, and their breathing and movements will synchronize. They take several breaths at the surface, and then submerge for a period of time before surfacing again. The time spent submerged increases as the “sleep” becomes deeper, and they may take up to ten breaths near the surface before submerging for as long as ten minutes. Pods resting like this will avoid boats and contact with other animals during this process. It is thought that this kind of group resting may strengthen the animals’ bond and cohesiveness as a unit.”

Classic orca photo

Click to enlarge
Click to enlarge

The whale / orca watching safari day from Grizzly Bear Lodge start with a fifty minute boat ride from the lodge to the area of Johnstone Strait.  Along the way we search the shore for black bears, eagles and anything else that moves.  Once we are in the Strait’s area or eyes turn to the water for marine wildlife such as seals, sea lions, dall’s porpoise, white-sided dolphins, minkie whales, humpback whales and of course killer whales or orca. The resident or salmon eating orca we normally see in this area travel in family pods of ten to twenty members. The pods are dominated by the “mother” (oldest female) making them matriarchal however it is older males (sons stay with their mother all their life) that tend to attract most of the picture taking.

Orca Watching?

glensbest-spyhop08-b028

Spyhoping is an action taken by orca to get a better view of their surroundings. Although most books published on whale / orca behaviour show many pictures of this activity it is very hard to get a picture. If you have your camera pointed in the right direction and happen to be taking a picture on another orca activity you might just get a spyhop.

 

Whale identification

hbidentify

Many of the humpback whales we observe in the waters of British Columbia have been identified with a number / name and have their pictures in a catalogue. The underside of a whale’s tail shows a range of white patterns. These patterns added to any scars or other markings are unique to each whale.

 

Orca watching safari

orca1

The whale / orca watching requires a short run to Johnstone Strait in the area of Telegraph Cove on BC’s Vancouver Island. Guidelines are in place to prevent whale harassment but that does not mean that we don’t manage to obtain good photos. Orca being curious will frequently investigate us while we watch them.

 

Large Male Orca on Whale Watching Safari

Resident Male Orca

The day whale watching means we travel to the area of Johnstone Strait near Telegraph Cove on Vancouver Island BC.  The resident, salmon eating orca, arrive in early late June and stay through October while the transient, mammal eating orca are in the area all year.  Confused?  The first serious study of the orca populations in the mid-1970’s started as a summer study so when the scientist arrived in July and left in September the orca were always in the area and therefore there named resident orca.  Little did they know that this was a summer feeding area as the orca followed the salmon?  The transient orcas, which were in the area, spend more time in the remote inlets in the summer because there was more boat traffic.  The transient orca still travel through our viewing area in the summer but this photo is of a resident as determined by the size and shape of its dorsal fin, taller and narrower at the base. Photo provide by guest Alferd Bittner.

Whale Watching day with orca breaching

Orca Breaching

Orca Calf breaching

These photos are not as good as my guests as I was using a small Pentax Opti 6.0 megapixels and running the boat – that is my excuse.  But I remember the day in Johnstone Strait off the shore of Vancouver Island we came upon an adult orca that seemed to be teaching a younger orca about breaching.  The adult would breach and in less than a minute the younger would do the same.  As you can see there were no other boats in the area and this behaviour continued for fifteen or twenty minutes must have been more than a dozen sets of breaching. As a guide we experience many interesting every summer but this ranks in the top ten for me.