Month: September 2022

Killer whale census shows another down year, with three deaths and two births

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Three deaths and two births. Over the past year, the endangered Southern Resident killer whale population has declined by a total of one, according to the annual census report submitted yesterday by the Center for Whale Research. Now the number of whales in all three pods stands at 73, down from 74 last year and declining from 98 animals the past 25 years. The births of J59 last February and K45 in May have been widely reported, along with the death of the much-loved K21, a 35-year-old male named Cappuccino. […]

PSI monthly roundup: September 2022

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PSI monthly roundup: September 2022 View the fully formatted newsletter Six things that people should know about ecosystem modeling and virtual experiments Mathematical models running on high-speed computers are being used successfully to describe and predict all sorts of environmental changes, from annual salmon runs to sea-level rise to warming waters in streams, bays and oceans. We talked with six experts involved in a variety of ecosystem models. Here’s what they said you should know about how models work and why computer simulations are becoming increasingly important to our understanding of the […]

Six things that people should know about ecosystem modeling and virtual experiments

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The Puget Sound Institute is facilitating a series of online workshops and discussions to explore the technical uncertainties related to the science of Puget Sound water quality. As part of the project, we are publishing informational blogs and articles, including this look at how computer models are becoming increasingly important to our understanding of the natural world. The project is jointly sponsored by King County and the Puget Sound Institute. By Christopher Dunagan If you are planning a hike, picnic or other outdoor activity, it might be wise to take a look at the local […]

Add-on structure will begin to address steelhead crisis at the Hood Canal Bridge

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The Hood Canal Bridge, which connects the Kitsap and Olympic peninsulas, has proven to be a dangerous impediment to juvenile steelhead trout. As many as half of the young migratory steelhead in Hood Canal may get picked off by seals, birds and other predators as the fish try to pass under the floating highway, according to studies. While a permanent solution may be years away, the first step at reducing predation at the bridge may be just around the corner, as construction crews prepare to fabricate a floating structure that […]

Upcoming workshops on tools to evaluate water quality and biological integrity 

An image of brackish water mixing in the Salish Sea as shown by the Salish Sea Model. Image courtesy of the Salish Sea Modeling Center.
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New event: More than 130 researchers, scientists, modelers, and other experts attended our first workshop in July on The Science of Puget Sound Water Quality. The discussion continues with two interrelated workshops focusing on scientific tools for evaluating marine conditions and species health. Join us:  September 29th from 8 – 10 AM PT for Tools to Evaluate Water Quality. Learn about tools and new analyses from monitoring and modeling that help us better understand water quality and potential eutrophication impacts. We will look in particular at increased access to spatial and temporal […]