The state of Washington estimates that the Puget Sound area will grow by more than 1.5 million residents within the next two decades. That is expected to have profound effects on the environment as more and more people move to undeveloped areas. The race is on to protect this critical rural habitat, but planners say what happens in the cities may be just as important.
This week in Salish Sea Currents: PSI senior writer Christopher Dunagan reports on a new approach to flood control in Puget Sound. Rivers, scientists say, can be contained by setting them free. Conservationists hope this is good news for salmon recovery.
The story is part of our ongoing series on the science of Puget Sound recovery. Funding for the series is provided by the Environmental Protection Agency.
New in Salish Sea Currents: We continue our series on Puget Sound’s EPA-funded Implementation Strategies. This week we take on Chinook recovery.
As threatened Chinook populations continue to lose ground, the state is looking to new strategies to reverse the trend. In the Skagit watershed, the scientists — and the fish — are among those leading the way.
Puget Sound-area writer Bob Friel reports from the newly-established Fir Island Farms Reserve where he witnessed the discovery of the very first Chinook to be found at that restoration project.
By Christopher Dunagan
A desire to come up with “bold actions” for rebuilding Chinook salmon runs in Puget Sound has slowed approval of the first Chinook Implementation Strategy designed to accelerate recovery efforts for the threatened species.
The Puget Sound Salmon Recovery Council, which oversees salmon-related planning, was scheduled to adopt the Chinook Implementation Strategy at its March meeting. The strategy underwent 14 months of study, discussion and review, and council staffers said it was ready for approval.
Before the meeting, however, representatives of Puget-Sound-area Indian tribes disagreed with that assessment, saying the proposed strategy was not specific enough about actions needed to save salmon. The document, they said, failed to provide enough direction to agencies and nonprofit groups working on salmon-restoration projects. Continue reading
New in Salish Sea Currents: After a long struggle with pollution, Drayton Harbor has reopened to year-round commercial oyster harvesting for the first time in 22 years. Here’s how the community cleaned up its act, potentially showing the way for shellfish recovery throughout Puget Sound.
Our story last week about the impacts of predators on Chinook salmon populations in Puget Sound continues to gather strong interest from our readers. Several thousand viewed it after it came out last Thursday, and it was reprinted in the Kitsap Sun on Monday.
The story was written by PSI senior writer Christopher Dunagan and reports on a new study showing that area seals and sea lions are eating a much higher amount of threatened Chinook than previously known. Many questions still remain, but it is the first time that a peer-reviewed study has attempted to quantify these predator impacts to such a degree and in such detail.
Here are a few highlights: As many as one in five young Chinook are eaten before they can make it out of Puget Sound into the open ocean. Area seals and sea lions eat twice the amount of Chinook as do Puget Sound’s endangered orcas, and six times the annual commercial and recreational catches from local fishermen combined. Scientists attribute the large numbers to an increase in seals and sea lions since the 1970s after the animals were protected under the Marine Mammal Protection Act.
Not surprisingly, scientists and policymakers will have to look more closely at these numbers to determine what to do. Seals and sea lions are rightly protected, and old (and undesirable) policies of hunting the animals to protect salmon are not an option. Scientists say that even if such policies were possible, there is no saying that they would actually protect the salmon population.
The fact is that the seals and sea lions are just doing what they do naturally, and while their populations are healthy, there aren’t necessarily more of them than there should be. Some would argue that this study is a reminder that we need to continue to recover habitat and create better conditions for the salmon to withstand what are essentially normal pressures from the environment. Historically, Puget Sound’s Chinook and predators co-existed just fine, but that was before millions of humans started destroying the local streams and floodplains, degrading beaches and polluting the water. See a harbor seal with a salmon in its mouth? That can also be seen as a sign of Puget Sound’s health.
A new study shows that increased populations of seals and sea lions are eating far more of Puget Sound’s threatened Chinook than previously known, potentially hampering recovery efforts for both salmon and endangered killer whales.
Read the story in Salish Sea Currents.
Many groups have been formed around the goal of saving salmon, but few people talk about a concerted effort to save microscopic creatures. Whether or not a pro-bug movement catches on, future strategies to save salmon are likely to incorporate ideas for restoring streambound creatures known as benthic invertebrates. Read our latest story in Salish Sea Currents.
When a scientist wades into an eelgrass bed or measures the weight of a Chinook salmon, their connection to the environment is clear. Much of what we know as the ‘scientific process’ takes place on the ground at a local scale. Measurements and observations are made and extrapolated. Scientists get their feet wet.
But what do you do when you are studying an entire ecosystem? In the case of Puget Sound, you can’t wade — or even see – the whole thing. To some degree, such a large system is an abstraction. It is infinitely complex and unknowable, with thousands of species and countless other variables.
Here at the Puget Sound Institute, our scientists conduct plenty of on-the-ground research, but we also look at this big picture. In the fall of 2016 our team began working closely with other scientists funded by the EPA to establish what are known as Implementation Strategies. These strategies will identify and apply solutions to improve Puget Sound’s overall Vital Signs, a series of indicators established by the Puget Sound Partnership to measure the region’s health.
It is part of a “learn and adjust” approach known as adaptive management (read more about adaptive management on the Encyclopedia of Puget Sound). Adaptive management is gaining traction for ecosystem conservation worldwide and has played a central role in state and federal Puget Sound cleanup efforts since 2007.
PSI’s role will help to synthesize and analyze the state of the science for many of the Vital Sign indicators, and will provide recommendations for science-based solutions aimed at improving them. Watch for stories about the process in our Salish Sea Currents series in the coming weeks and months.
A “learn and adjust” strategy known as adaptive management plays a central role in state and federal Puget Sound recovery efforts. It is an approach that is gaining traction for ecosystem management worldwide. An article this week from the Puget Sound Institute provides an overview of the concept and how it is being applied locally.