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Can volunteer trappers halt the green crab invasion in Puget Sound?

The war against the invasive European green crab continues in Puget Sound, as this year’s Legislature offers financial support, while the Puget Sound Crab Team responds to crabs being caught for the first time in Samish Bay in North Puget Sound and at Kala Point near Port Townsend.

In other parts of the country where green crabs have become established, the invaders have destroyed native shoreline habitat, diminished native species and cost shellfish growers millions of dollars in damages. See Environmental Protection Agency report (PDF 1.3 mb).

European green crab trapping sites in Puget Sound.
Map: Washington Sea Grant

In Puget Sound, it’s hard to know whether the crabs are being trapped and removed rapidly enough to defeat the invasion, but so far humans seem to be holding their own, according to Emily Grason, who manages the Crab Team volunteer trapping effort for Washington Sea Grant.

“The numbers are still in line with what we saw the past two years,” Emily told me. “Since the numbers have not exploded, to me that is quite a victory. In other parts of the world, they have been known to increase exponentially.”

The largely volunteer Crab Team program is focused on placing baited traps at 56 sites in Puget Sound, as shown in the first map on this page. About 220 trained volunteers are involved in that work, with various federal, state and tribal agencies adding about 40 additional people.

Last year, 69 78 crabs were caught in the traps. All but eight of those were on or near Dungeness Spit, where officials with the U.S. Fish and Wildlife Service have increased their trapping in an effort to catch every crab willing to crawl into a trap. The agency manages the Dungeness National Wildlife Refuge.

In Samish Bay, east of the San Juan Islands in North Puget Sound, three green crabs — including a female bearing eggs — were captured in January while shellfish growers were tending to shellfish beds in the bay. This was the first time that green crabs have been caught in the winter, when they usually move offshore, according to Emily. For that reason, the overall trapping program begins in April and ends in September. But far out on the mudflats, during a low tide, the crabs might be found by those working the shellfish beds. See Emily’s Crab Team blog post from Jan. 23.

Staffers at Padilla Bay National Estuarine Research Reserve added a fifth trapping site in an extremely muddy area of Samish Bay, an area that would be tough for volunteers to monitor, Emily said.

A new Port Gamble site was added in an effort to detect any crabs that may have arrived during their larval stage and begun to grow. Port Gamble on the Kitsap Peninsula is considered to be in the proximity of Kala Point near Port Townsend, where a single green crab was found in September, just before the end of the trapping season. Further extensive trapping located another green crab in nearby Scow Bay between Indian and Marrowstone islands. See Emily’s Crab Team blog post from Sept. 25.

The monitoring at Point Julia in Port Gamble Bay will be managed by the Port Gamble S’Klallam Tribe, which may propose additional sites in the area.

Based on research since the Crab Team was formed in 2015, more crabs are caught in May than any other month, Emily told me, so everyone is waiting to see what shows up this month. As the waters warm and the crabs go out in search of food, they may become more vulnerable to trapping. So far this spring, 16 green crabs have been trapped along Dungeness Spit with one from nearby Sequim Bay.

Another big trapping month comes in August, before the crabs move offshore, she said.

The trapping effort is geared to catching as many crabs as possible at a young age, because a large population of breeding adults in any location could threaten to spread the infestation throughout Puget Sound. Having Crab Team volunteers putting out their traps in strategic locations increases the probability that green crabs will be found before they get established. If needed, larger eradication or control efforts can be launched with the help of other agencies.

As part of the effort, the Washington Department of Fish and Wildlife added a staffer last year to do spot checking in vulnerable areas not regularly trapped. That increases the chances of detecting an invasion.

For the first time this year, the Legislature funded the Crab Team’s operating budget, which allows Emily and other Crab Team leaders to focus on finding crabs, rather than spending their time searching for funding to keep the program going.

The hope, of course, is that fewer crabs will be caught this year, as an indication that the population is being held in check. It would be nice to think that all the major infestations have been found.

“We hope that this is going to be an easier year,” Emily said, “but we don’t get to determine that. We have to be responsive to whatever happens.”

Officials working along the Washington Coast, led by the Makah Tribe, have their hands full with an invasion that may have started as early as 2014 and has resulted in more than 1,000 green crabs being caught. Check out the story on the website of the Northwest Indian Fisheries Commission.

The interactive map below allows for selection of trapping sites, locations where crabs have been found and areas with suitable habitat for invaders. For those who would like to get involved in the Crab Team’s efforts, check out Sea Grant’s website and the “Get Involved” page.

This blog post was revised from an earlier version to correct changes in the total number of green crabs found last year and to clarify the overall effort.

‘Survive the Sound’ salmon game now open to all with no charge

“Survive the Sound,” an online game that involves tracking salmon migrations in Puget Sound, has thrown open its doors for everyone, whether you donate money or not.

The idea of buying a salmon character to participate in the game has been abandoned after two years, and now the fish are free for the choosing. Long Live the Kings, which sponsors the game, still welcomes donations, of course, but money is not a prerequisite.

“We wanted to make sure that everyone has an opportunity to learn more about salmon and steelhead and support the movement to recover them,” Lucas Hall, project manager for LLTK, told me in an email. “So, we’ve simplified the sign-up process and eliminated any fees associated with participation.”

Eliminating the fees also makes it easy to form or join a team, which can consist of any number of people. The winner is the team with the greatest percentage of fish surviving to the end of the five-day migration. So far, more than 400 teams have been created among more than 2,000 players signed up for the game.

If you register with “Survive the Sound,” you will receive daily emails tracking your fish character, based on actual fish that were tracked during past research projects. Most fish characters in the game will perish somewhere along the way, as salmon do in real life, but some will make it all the way through Puget Sound to the ocean.

The deadline for joining the game is May 5. Go to “Survive the Sound” for details or to sign up. The game begins the following day.

Many teachers are involving their students in the game, which can be a springboard for describing the life cycle of salmon and the perils they face from egg to adult spawner. Last year, more than 30,000 students participated through their classroom, and many classroom teams continue. See “Getting started in the classroom” for classroom materials, including a live webinar involving salmon scientists.

If you have questions about the project, you can check with Lucas Hall, lhall@lltk.org.

Amusing Monday: A new Earth Day anthem from a comedic rapper?

Loving the Earth is the theme of a new music video by comic rapper Lil Dicky, who enlisted the voices of two dozen famous singers to play the roles of animals in the video.

Just released Thursday, the video is one of the hottest-trending items on YouTube, where it reached 25 million views just before I posted this. With its catchy tune, the song is being promoted as a new anthem for Earth Day. Happy Earth Day!, by the way.

It feels almost redundant to share this video, considering all the anticipation and attention surrounding it, but it is a far more fun and amusing than the dull and somewhat ironic Earth Day message posted by Andrew Wheeler, the current administrator of the Environmental Protection Agency.

It was clever of Dave Burd, Lil Dicky’s real name, to put the voices of some famous singers into the bodies of animals, including Justin Bieber as a baboon, Ariana Grande as a zebra, Halsey as a lion cub, Zac Brown as a cow, Adam Levine as a vulture, Shawn Mendes as a rhino, Charlie Puth as a giraffe, Miley Cyrus as an elephant, Katy Perry as a pony, Ed Sheeran as a koala, Leonardo DiCaprio as himself, and several others.

Proceeds from the video will go to help out the Leonardo DiCaprio Foundation, which strives to educate the public about the environment and climate change while working on environmental projects.

“Dicky frolics with penguins, analyzes chatty microbes under a microscope, and talks to a marijuana plant voiced by Snoop Dogg (duh),” writes Zoya Teirstein for Grist magazine. “The video might look like a Disney channel special, but isn’t too concerned with being wholesome (Justin Bieber’s line: ‘I’m a baboon. I’m like a man just less advanced and my anus is huge).’

“If you don’t want to watch an animated Lil Dicky sing about the planet in a loincloth g-string for seven minutes, I don’t blame you,” she continues. “But think of it this way: what if this whole video is a critique of the tired and worn-out tropes used by old-school Earth Day advocates? Hmm??”

Ellen DeGeneres was able to preview the video on her show last week, but she didn’t seem to have much time or know what to ask Lil Dicky — or Dave Burd, who turned 31 last month.

Burd, who grew up in a middle-class, Jewish family, launched his career by emphasizing feelings of self-consciousness in his characters. Lil Dicky’s first rap video in 2013 was “Ex Boyfriend,” which contains sexually explicit lyrics about feelings of inadequacy around a hot girlfriend. Ellen said she liked “Freaky Friday,” in which Lil Dicky suddenly finds himself in the body of Chris Brown with all of the implications that brings.

Dave Burd clearly has a knack for rap, and that may be where he continues to grow his comedic fame and fortune, but there is another side to this man who graduated from the University of Richmond in Virginia, and began working in account management for the advertising agency Goodby, Silverstein & Partners (Bio, Wikipedia).

In a 2014 interview with Michael Trampe of HipHop magazine, Burd said: “I started rapping simply to get attention comedically, so I could write movies, write TV shows and act. I had very little interest in being a rapper. I fell in love with rapping though, so I’m not leaving that game until I’ve proved my point. However, I plan on having two concurrent careers going on at the same time, as a rapper, and as a comedian/actor/writer. I value the non-musical career just as much as the rap career, and can’t wait to begin acting on that.”

Amusing Monday: New satellite enhances images of East Pacific region

An amazing new satellite, designed to peer down on the West Coast and Hawaii, started transmitting stunning images last week, when heavy snows blanketed parts of Alaska while California wildfires sent plumes of smoke into the air. The satellite is called GOES-17.

CLICK TO LAUNCH ANIMATION — This full-disc image of the Earth, taken Thursday, shows clouds at three altitudes: Band 10 is low-level; Band 9 is mid-level; and Band 8 is upper-level.
Image: Cooperative Institute for Meteorological Satellite Studies, University of Wisconsin, Madison

“With GOES-17’s coverage area now centered over the Pacific Ocean, we now have high-resolution geostationary satellite coverage of Alaska, Hawaii and much of the Pacific Ocean for the very first time,” states a news release from the National Oceanic and Atmospheric Administration.

GOES stands for Geostationary Operational Environmental Satellite. GOES-17 will remain in stationary orbit at 137.2 west longitude and 22,300 miles above the equator. Much of the equipment in GOES-17 uses the same advanced technology as GOES-16, also known as GOES East, which covers the East Coast. See map below.

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Salish Sea photo contest emphasizes local species, habitats and activities

I’m eager to see the photographs judged as the top 100 in the Salish Sea nature photography competition, called “Salish Sea in Focus.” If you have a favorite photo that tells a story or captures the essence of an animal or a place in our inland waterway, you have until June 4 to submit your image.

Kelp // Photo: Pete Naylor

I’ve featured many nature photography contests in this blog, but I don’t believe we’ve ever had one focused exclusively on the Salish Sea. I hope everyone takes a little time to consider whether a favorite photograph deserves special recognition. The competition is organized by The SeaDoc Society.

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Amusing Monday: World Water Day addresses natural purification

World Water Day, coming up this Thursday, is an annual worldwide event designed to focus attention on the importance of water to all living things.

Promoted by the United Nations, the 25-year-old World Water Day has always raised concerns about the 2.1 billion people in the world who don’t have easy access to clean water, creating a major health crisis in some communities.

This year’s theme is “nature for water” — although the discussion remains focused mainly on humans. Human actions have contributed to increasing flooding, drought and water pollution — and humans are able to use natural systems to help reduce the problems.

So-called “nature-based solutions” include protecting and improving water quality by restoring forests and wetlands, reconnecting rivers to their floodplains and creating vegetated buffers along lakes and streams, even in urban areas.

A fact sheet (PDF 2 mb) put out by UNESCO (U.N. Educational, Scientific and Cultural Organization) lays out the arguments on behalf of nature-based solutions. A larger 150-page report, titled “Nature Based Solutions for Water” (PDF 42.7 mb) can be downloaded from the UNESCO website.

A series of posters and cards related to this year’s theme can be downloaded from the World Water Day website. For the creative, I’m intrigued by the idea that you can create your own collage, using individual elements taken from the four posters. See “collage kit” on the same resources page.

Considering that this is the 25th World Water Day, I anticipated more events and celebrations. The one event listed for Washington state is a guided tour of Edmonds Marsh, one of the few urban saltwater estuaries still remaining in the Puget Sound region. Details of the walk are provided in a brief article in Edmonds News.

The first video on this page is a promotional piece by UNESCO.

Official poster of World Water Day
Source: UNESCO

I found the second video, filmed in Istanbul, Turkey, to be revealing about people’s attitudes about water. I imagine the reaction might be the same in some U.S. cities — although the specific location probably makes a lot of difference. The video, produced in 2015, was created for Standart Pompa, a manufacturer of water pumps.

The video shows a video screen next to a water faucet with a dying tree depicted on the screen. When passersby turned off the water faucet, the tree suddenly transformed into a healthy green condition. Although the weather was cold during the filming, nearly a third of the people going by took their hands out of their pockets and turned off the water, which was actually recirculating from the drain so that no water was wasted.

The third video is a cartoon designed to drive home a message about the importance of water, beginning with the simple act of brushing your teeth. It was produced by TVNXT KIDZ.

Become a witness for ‘king tides’ in Puget Sound now and later

Witnessing Puget Sound’s “king tides” could return as a more popular outdoor activity this year, as Washington Sea Grant takes the lead in promoting the event.

Locations where people have posted king tide photos on the Witness King Tides website

“King tides,” which are recognized in coastal areas across the country, is the name given to the highest tides of the year. These are times when people can observe what average tides might look like in the future, as sea levels continue to rise.

The highest tide of 2018 is forecast for this Friday around 8 a.m., although the exact time depends on the location in Puget Sound.

Activities include taking pictures of shoreline structures during these high-tide events and then sharing the photos with others. One can try to imagine what the landscape would look like in a given location if the water was a foot or more higher. King tide activities can be fun while adding a dose of reality to the uncertainty of climate change.

King tides by themselves have nothing to do with climate change, but these extremes will be seen more often in the future as new extremes are reached. As things are going now, experts say there is a 50 percent chance that sea levels in Puget Sound will rise by at least 7 inches in the next 22 years and keep going from there. They say there is a 99 percent chance that sea levels will be at least 2.4 inches higher by then. Check out the story I wrote in October for the Encyclopedia of Puget Sound.

Washington Department of Ecology, which had been promoting king tides each year, has backed away from the event in recent years. In the beginning, I thought the idea of king tides seemed kind of silly, because high tides are affected by weather conditions on a given day. But I came to embrace the idea that watching these high-tide events will help shoreline residents and others understand the challenges we are facing in the Puget Sound region.

Addressing sea level rise may not be easy, but some waterfront property owners are beginning to face the problem, as I described in another story in the Encyclopedia of Puget Sound.

During a king tide event in December 2012, the Kitsap Sun and other newspapers covered the resulting flooding by running photographs of high water in many places throughout Puget Sound. A low-pressure weather system that year made extreme high tides even more extreme. In fact, officials reported that the high tide came within 0.01 feet of breaking the all-time tidal record set for Seattle on Jan. 27, 1983. See Water Ways, Dec. 18, 2012.

Washington Sea Grant, associated with the University of Washington, has now taken over promotion of king tides, and we should soon see an improved website, according to Bridget Trosin, coastal policy specialist for Sea Grant. Bridget told me that she hopes to promote more local events, such as getting people together to share information during extreme high tides.

Sea Grant is sponsoring a King Tide Viewing Party this Friday at Washington Park boat launch in Anacortes, where Bridget will spell out what high tides may look like in the future. Warming refreshments will be provided, according to a news release about the event.

Wherever you live around Puget Sound, you can go down to the water to document the high tide, perhaps starting a new photo gallery to show how high tides change at one location during king tides in the future, as some folks are doing in Port Townsend.

For tips on preparing and posting photos, visit the “Witness King Tides — Washington State” website, then check out the page “Share Your Photos.” To see the locations where photographs have been taken, go to the map page. One can click on locations on the map to see the photographs taken from that spot.

King tides occur when the moon and sun are on the same side of the Earth at a time when the moon comes closest to the Earth. Their combined pull of gravity raises the sea level. The presence of a low-pressure system can raise the tides even higher than predictions published by the National Oceanic and Atmospheric Administration.

Friday’s high tide is predicted to be 13.2 feet in Seattle at 7:55 a.m. We won’t have a tide that high again until January of 2019, according to NOAA. Still, Feb. 2 will see a 13.1-foot tide in Seattle, and tides exceeding 12 feet are predicted for June 16, Nov. 27, Dec. 1, Dec. 10, and daily high tides from Dec. 26 through the end of this year.

Weather extremes now surpassing the realm of natural possibilities

A new report from the American Meteorological Society makes a rather stunning statement about climate change. For the first time, researchers have concluded that specific weather-related events could not have happened without the influence of climate change caused by human activity.

Three events studied in 2016 were so extreme that they did not fit into the context of natural climate conditions, according to researchers working on separate projects. One involved the global heat record for 2016; another was focused on warmth across Asia; and the third was the “blob” of warm ocean water familiar to folks who follow weather in the Pacific Northwest.

A “blob” of warm water off the Northwest coast from 2013 to the end of 2016 could not have occurred without human-induced climate change, experts say.
Map: NOAA’s Earth System Research Laboratory

“This report marks a fundamental change,” said Jeff Rosenfeld, editor-in-chief of the Bulletin of the American Meteorological Society, in a news release. “For years scientists have known humans are changing the risk of some extremes. But finding multiple extreme events that weren’t even possible without human influence makes clear that we’re experiencing new weather, because we’ve made a new climate.”

Personally, I did not expect to see this sort of demonstrable statement about man-made climate change anytime soon. In classes and seminars on the subject of climate change, I’ve often seen lecturers present frequency curves that show the number of times that certain weather-related phenomena — such as temperatures or rainfall — are observed over a given time.

We’re told by climatologists that many of these curves are steadily shifting, so that fairly extreme conditions occur more often and truly extreme conditions emerge for the very first time in certain locations.

Researchers are loathe to say that a given storm, drought or hurricane is the result of climate change. They would rather say climate change affects the likelihood of extreme weather events, plotted at the end of the frequency curve. In the realm of statistics, there is a tendency to hold onto the idea that almost any kind of weather could occur almost anytime, provided that a perfect storm of conditions line up together.

Against that backdrop, comes the new report titled “Explaining extreme events of 2016 from a climate perspective,” which examines extreme weather events throughout the world.

“First, it is important to note that climate scientists have been predicting that … the influence of human-caused climate change would at some point become sufficiently strong and emergent to push an extreme event beyond the bounds of natural variability alone,” state the six editors in an introduction to the report.

“It was also anticipated that we would likely first see this result for heat events where the human-caused influences are most strongly observed,” they continue. “It is striking how quickly we are now starting to see such results, though their dependence on model-based estimates of natural variability … will require ongoing validation …”

In other words, the conclusion comes from computer models that can analyze the probability of an extreme event taking place when greenhouse gases are found at different concentrations. Results using today’s observed conditions are compared with results using conditions before the industrial release of greenhouse gases.

In the three highlighted papers, the researchers calculated the “fraction of attributable risk,” or FAR, for the extreme event they were studying. FAR is a statistical approach used in epidemiology to measure the likelihood of an event under various conditions. For explanations, see Boston University School of Public Health and the 2007 IPCC report.

“All three papers concluded that the FAR was 1, meaning that the event was not possible in the ‘control’ planet and only possible in a world with human-emitted greenhouse gases,” the editors say.

Although this is the first time that researchers have concluded that extreme events could not have happened without human-induced climate change, the editors are quick to point out that the same phenomenon may have occurred unnoticed in the past on a smaller geographic scale.

These findings do not mean that the climate has reached any kind of tipping point. It simply adds to the evidence that mounting weather extremes are not the result of natural processes.

Reporters Brad Plumer and Nadja Popovich of the New York Times do a nice job of delving into the concept of attribution science while mentioning five of the extreme events covered in the new report. They quoted Heidi Cullen, chief scientist at Climate Central, which produces news stories about climate issues.

“In 2011, people were still of the mind-set that you couldn’t attribute any individual event to climate change,” Cullen said. “But with each subsequent issue (of the BAMS report), people are able to say that climate change really is increasing the risk” that extremes will occur.

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Amusing Monday: The evolution and danger of packaging drinks by six

When I was a young child, we didn’t have to worry about wildlife getting strangled by six-pack rings, because these plastic binders for cans had not been invented yet. I was 9 years old in 1961 when this simple, convenient form of packaging was invented, so I clearly remember the transition. (See Hi-Cone history.)

At the time, nobody predicted the conservation consternation that would be created by such a simple piece of plastic. During the 1970s and up to present, pictures of entrapped birds and other sea creatures became common, suggesting that we at least cut the plastic to save the animals. The first video provides a story of potential revenge.

Before the invention of six-pack rings, people bought soft drinks and beer in cardboard packages, which sort of wrapped around the cans. Pabst Blue Ribbon may have been the first beer sold in cardboard cartons (second video), although Coca Cola may have started the phase. The Coke company claims to be the first to take its bottles out of wooden crates and begin offering cardboard packaging for consumers as early as 1923.

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Amusing Monday: Baby river otters must be taught how to swim

Baby river otters appear to be reluctant swimmers when they enter the water for the very first time. As you can see in the first video, the mother otter pulls, pushes and practically wrestles her offspring to begin a swim lesson at Columbus Zoo in Ohio.

The second video, from Oregon Zoo in Portland, features otter keeper Becca VanBeek, who provides us some details about the life of a young otter. Shown is a baby otter named Molalla. The mom seems a bit rough with her baby, but she’s just trying to teach a diving and breathing pattern.

If we want to be formal about it, what should we call a baby otter? A baby walrus is called a calf, and a baby sea lion is called a pup. So a baby otter is called a ______? If you said pup, you are right.

Now for the parents. If a male walrus is called a bull and a male sea lion is also called a bull, what is a male otter called? The answer is boar, but please don’t ask me who comes up with this stuff. Correspondingly, female walruses and female sea lions are called cows, while female otters are called sows.

Thirteen kinds of otters exist in the world. Some, such as the sea cat of South America, are so endangered that almost nothing is known about them Read about all 13 on the h2g2 website.

In the Northwest, many people confuse the sea otter with the river otter. Both are related to the weasel, and both have webbed feet and two layers of fur to maintain their body temperature in cold water. But there are many differences:

  • River otters spend more time on land than water. Sea otters almost never climb up on land.
  • River otters live in freshwater and marine estuaries. Sea otters live in seawater, including the ocean.
  • River otters generally grow to 20-25 pounds, sea otters to 50-100 pounds.
  • River otters swim with their bellies down and expose little of their back. Sea otters generally swim belly-up and float high in the water because of air trapped in their fur.
  • River otters have rounded webbed paws, front and back. Sea otters’ rear paws are elongated like flippers with webbing going to the end of the toes.

Sources: Sea Otter Recovery and Aquarium of the Bay

Other otter videos worth watching:

Below is one of the two live cameras in the sea otter exhibit at Seattle Aquarium. The cameras are in operation from 9 a.m. to 6 p.m. Visit the aquarium’s Otter Cams webpage to see both cams and read about the otters.

Monterey Bay Aquarium also has a live otter cam, which is in operation from 7 a.m. to 7 p.m. Visit the aquarium’s Sea Otter page for feeding times, when the otters are introduced to the audience and a live discussion takes place with otter experts.