242A Calls

There were 61 northern resident discrete calls identified for tape 242A (August 5, 2004, 19:30 - 20:17). The majority of calls were; N4 (40%), N16 (20%), and N7 (15%) respectively. The A12s were identified at Cracroft Island where the majority of calls were heard.

242B Calls

There were 80 discrete northern resident calls identified for recording 242B (August 5, 2004). The majority of calls were N4 (41%), N1 (31%), and N5 (14%). A1 and A4 pods were identified, whales were rubbing on pebbles at 20:29.

Griffin Photography

246B

Year - 2004
Tape - 246B
Date - Friday, Aug06
Time - 06:39
Annotations - 174
Whales - A30,A12,A36,A11,A35,A73,A24,A4 2,A43,A25,I15
Comments - Faint calls at beginning, boat noise increases. A30, A12, A36, and I15s, travel east in Johnston Strait, A1 and A5 calls. Echolocation and good calls at 06:57.
Link - http://orchive.cs.uvic.ca/recordings/show/11929

246A

Year - 2004
Tape - 246A
Date - Aug06
Time - 05:51
Annotations - 249
Whales - A30,A12,A36,A11,A35,A73,A24,A4 2,A43,A25,I15
Comments - Lots of nice calls at the beginning, A30s at Cracroft Point.
Link - http://orchive.cs.uvic.ca/recordings/show/11928

Orchive - 245B

Year - 2004
Tape - 245B
Date - Aug06
Time - 05:04
Annotations - 9
Whales - A30,A12,A36,A11,A35,A73,A24,A4 2,A43,A25,I15
Comments - Echolocation, faint calls, A36s, I15s, calls at end of tape from Cracroft Point.
Link - http://orchive.cs.uvic.ca/recordings/show/11927

NOAA Issues Final Killer Whale Vessel Regulations

New regulations to protect killer whales in inland waters of Washington State from the effects of various vessel activities.

1. vessels must not approach any killer whale within 200 yards
2. vessels must stay out of the path of oncoming whales out to 400 yards.

Website for more information on the vessel regulations.

Orchive - 239B

Year - 2004
Tape - 239B
Date - Aug05
Time - 15:25
Annotations - 68
Whales - A30,A12,A36,A11,A35,A73,A24,A4 2,A43,A25,I15
Comments - Lots of rubbing and few calls to start then strong calls at 15:47.
Link - http://orchive.cs.uvic.ca/recordings/show/11915

J pod

Orchive - 237B

Year - 2004
Tape - 237B
Date - Aug05
Time - 11:29
Annotations - 147
Whales - A30,A12,A36,A11,A35,A73,A24,A4 2,A43,A25,I15
Comments - Lots of boat noise at the beginning of the tape, drops off 1/4 way through with some nice calls around 11:30 then boat noise picks up again at 11:40, loud close calls annotated (orca!).
Link - http://orchive.cs.uvic.ca/recordings/show/11911

Killer Whale Exhause Exposure

Cara L. Lachmuth, Lance G. Barrett-Lennard, D.Q. Steyn, William K. Milsom (2011) Estimation of southern resident killer whale exposure to exhaust emissions from whale watching vessels and potential adverse health effects and toxicity thresholds. Marine Pollution Bulletin, 28 January 2011.

Southern resident killer whales in British Columbia and Washington are exposed to heavy vessel traffic. This study investigates their exposure to exhaust gases from whale-watching vessels by using a simple dispersion model incorporating data on whale and vessel behavior, atmospheric conditions, and output of airborne pollutants from the whale-watching fleet based on emissions data from regulatory agencies. Our findings suggest that current whale-watching guidelines are usually effective in limiting pollutant exposure to levels at or just below those at which measurable adverse health effects would be expected in killer whales. However, safe pollutant levels are exceeded under worst-case conditions and certain average- case conditions. To reduce killer whale exposure to exhaust we recommend: vessels position on the downwind side of whales, a maximum of 20 whale-watching vessels should be within 800 m at any given time, viewing periods should be limited, and current whale-watch guidelines and laws should be enforced.

J1/Ruffles Missing

The 60 year old killer whale Ruffles/J1 was last seen on Novermber 21st, 2010. He would travel with Granny/J2 (100 years old) who has been seen several times since without Ruffles. Male longevity, typically is less than females, averaging about 29 years, some live well into their 40s and up 50-60 years of age. The average lifespan for females is about 50 years, however some may reach 80-90 years of age (Ford et. al. 2000).

King5

Ford, K.B., Ellis, G.M., Balcomb, K.C. (2000) Killer Whales: The natural History and genealogy of Orcinus orca in British Columbia and Washington. UBC Press p.22

Orchive Logs

Digital logs to document progress on the Orchive Project.

Parks Photography

Photos

Slideshow

Offshore Killer Whales eating Sleeper Sharks

John Ford and colleagues were observing the whales, they noticed them engaging in feeding behaviour. Immediately following this they discovered chunks of pink meat on the water’s surface which upon genetic analysis turned out to be the meat of at least 16 different Pacific sleeper sharks (Somniosus pacificus).

Link

Social-10

The Social-10 objective is to estimate the risk and minimize the impact of human sound and military sonar. It includes suction-cup tagging, listening, and tracking of whales, dolphins, seals, and sea lions. Preliminary findings show marine mammal response varied by species, behaviour, and sound type. For example, beaked whales were more responsive than other species, like pilot whales.

Sonar's Effects on Marine Mammals - Brandon Southall

Institute of Marine Sciences - UC Santa Cruz

SRKW Population

L54 and L108

L5 has a new calf L117, increasing the L pod population to 42 individuals.

L pod - 42
K pod - 20
J pod - 28

Making a total of 90 killer whales endangered in this community.

CWR

Humpback Comeback Project

VOTE Now!

Steller Sea Lion Managment Plan

There are two populations of Steller Sea Lions (Eumetopias jubatus) that live in the north Pacific; the Eastern and the Western populations. The animals living in Canada are part of the Eastern population extending from southern California to southeastern Alaska. The Eastern population has grown in the past few years, contrary to the Western population. The Eastern population is listed as of special concern by the Species at Risk Act (SARA) and therefore a management plan has been proposed. A species of special concern could become threatened or endangered.

Paper - Proposed Management Plan for the Steller Sea Lion (Eumetopias jubatus) in Canada

Sleeper Sharks and Sea Otter Decline

Sea otter - Hotsprings Cove, Tofino BC

Sea otters off the Aleutian Islands, Alaska, have decreased drastically over the past 15 years. Transient killer whales have been suggested as a cause but sea otters are relatively low in energy reserves versus other marine mammals due to their thin blubber layer. Otters have a very thick fur layer with a million hairs per square inch to keep them warm. Their pelts is why they became extinct off the British Columbia coast during the fur trade and decimated in the Pacific. Sleeper sharks have concurrently increased in population and need to be further investigated as a cause of the sea otter decline. The change in abundance of sea otters is cause for concern as they are a top predator in the kelp forest. Sea otters feed on urchins allowing for the kelp bed to grow. The forest provides protection and is a nursery for many species of fish and invertebrates. Disease and high contaminant levels have not been ruled out as a significant contributor to the sea otter decline.

Paper - A re-evaluation of the role of killer whales Orcinus orca in a population decline of sea otters Enhydra lutris in the Aleutian Islands and a review of alternative hypotheses