Search Results for: resident

New tools for orca sound annotation

Here’s a glimpse into the future of killer whale sound archives. Steven Ness and collaborators at the University of Victoria have created the Orchive — a suite of open-source, web-based tools for listening to and annotating the recordings of northern … Continue reading

Chinook data needed to interpret orca baby boom

Good national news is rolling in about 5 new southern resident whales and no deaths in 2009, plus one new baby thus far in 2010. Howard, Ken, and Brad allude to looking for correlations or explanations in chinook salmon abundance: … Continue reading

First outer coast hydrophone nearly live

On December 8th the NEPTUNE Canada cabled ocean observing system started pouring data on to the Internet.  This opens the door for John Ford and his collaborators to listen for killer whales on the outer coast of southwest Vancouver Island.  … Continue reading

+3dB noise reduces ‘effective listening area’ 30%

Jim Cummings of the Acoustic Ecology Institute has posted another great synopsis of an important new bioacoustics paper that has big implications for southern resident killer whales.  After defining a new bioacoustic metric “effective listening area” (which is MUCH more … Continue reading

Kalimari for orcas, or another salmon predator

Ron Hirschi, a local marine naturalist, is reporting Humbolt squid being caught on salmon gear in the central Strait of Juan de Fuca. Will they come all they way in in 2010? 11.30.09 Recreational salmon fishers are now catching them … Continue reading

How NZ orcas hunt sharks

I was most impressed by this underwater photograph taken by Ingrid Visser of a New Zealand killer whale pursuing a mako shark. The associated article from the Daily Mail describes hunting techniques that smack of likely Southern Resident tactics: collaborative … Continue reading

Salmon court fallacy: we must spill or spew

There are some great observations and quotes in the liveblog of Matthey Preusch during the Nov 23, 2009, Salmon Court. This first one suggests a slight of hand or an ignorance of the primary findings of the Bright Future report … Continue reading

Bob Pitman talk on Antarctic orcas Nov. 18, 2009

It was like watching a lecture by a 19th century anthropologist just back from a scientific expedition deep in the Amazon jungle, enthralling the audience with incredible tales of outlandish natives and their curious customs. Continue reading

How to: share salmon or orca news

I’ve been enjoying using orcasphere.net as a forum for sharing breaking news about southern residents, salmon, and related environment issues.  In the hopes of inspiring others to join me, this post is the first in a series that describe how … Continue reading

Orcas not in the NW Power Plan

Today’s the last day for killer whale advocates to ensure that the southern residents get some consideration in the power plan that guides the Pacific Northwest on a 20-year horizon and won’t be reviewed for 5 years.  Currently, the complete … Continue reading