Category Archives: Wildlife

Freshwater Sharks

Snorkeling in frigid waters for a species at-risk

By Levi Old                                                               

Salvelinus confluentusOn a dead-still summer night, I army-crawl upstream.

“We have a large adult!” says Jen.

I rise to one knee and pull the fogged snorkel mask off my head. “A big one?” I mumble in a haze.

“Yeah, really big. Much larger than I’ve ever seen this far up the creek,” she replies, pointing to where it kicked its caudal fin gently against the downstream flow. “It’s right there beside you.”

I cinch the mask on my face, place the snorkel in my mouth, and dunk back into the frigid water:

Twenty-six inches of wildness.

Jen pops her head out of the water and says, “Isn’t that just a beautiful creature?”

She snorkels one side of the creek and I snorkel the other. An assistant in waders walks the creek, tallies our fish sightings and makes sure we do not go hypothermic.

Jen O’Reilly, a biologist for the US Fish and Wildlife Service, leads the recovery effort for the Odell Lake population of bull trout, a Threatened Species under the Endangered Species Act. The recovery team consists of US Forest Service, Oregon Department of Fish and Wildlife, and Trout Unlimited. In order to monitor recovery of bull trout, biologists conduct an annual juvenile count in Trapper Creek, the only known spawning location for this population.

Trapper Creek is a tributary to Odell Lake. In the shadow of Oregon’s Diamond Peak, the lake lies in a glacier-carved basin physically detached from the Deschutes River by a 5,500 year-old lava flow. The flow enclosed the lake, genetically isolating this population of bull trout.

At midnight this past July, ten of us in dry suits and thick neoprene hoodies shimmied up different reaches (Fig. 1) of Trapper Creek. Shallow in most places, the snorkel is more of a crawl and scramble than a leisurely swim upstream. Even in mid-summer Trapper Creek is icy cold.

We closely observed the nooks of each piece of in-stream wood and dove into pools where rapids converged and bubbles enveloped our sightlines. We held dive lights, counted each fish and estimated its size class. We kept our eyes peeled for the creek’s bull trout.

Bull Trout – A species at-risk from Levi Old on Vimeo.

Named for their broad heads, bull trout (Salvelinus confluentus) serve as apex predators in aquatic systems of the West. Often called “Dolly Varden (S. malma),” they are in fact a separate species. Bull trout exist in less than half their historic range and prefer clean, cold waters. As a member of the char genus, they grow to be shark-like beasts in comparison to their trout relatives. Bull trout can measure up to 41 inches and weigh as much as 42 pounds.

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Figure 1: Trapper Creek runs north into Odell Lake. The three primary snorkeling reaches are labeled on the map (Richardson and Jacobs, 2).

The Trapper Creek bull trout population is known as the only adfluvial, non-reservoir population of bull trout in Oregon. During the 20th century, the building of railroads, construction of revetments, and removal of woody debris turned the creek into a large ditch of rushing water, unsuitable for spawning bull trout.

In 2003, this all changed. The recovery team restored the channel to increase spawning and rearing habitat by deconstructing revetments, placing woody debris and rebuilding a meandering channel. The annual snorkel count of juvenile bull trout increased from 26 in 1996 to 150 in 2005. Restoring, sustaining and monitoring native habitat is crucial to the survival of this iconic species.

If you find yourself on western waters, keep an eye out for these stream predators. Light spots of yellow, red and orange cover their dark bodies, and a white margin can be found on the leading edge of their ventral fins. And watch out, anglers: they will steal a hooked fish right off of your line.

Enjoy the video:

Bull Trout – A species at-risk from Levi Old on Vimeo.

Sources:
  • Montana Water Center. (2009). Trapper Creek. Retrieved on October 16, 2014, from http://wildfish.montana.edu/Cases/browse_details.asp?ProjectID=36.
  • Richardson, Shannon and Jacobs, Steve. (2010). Progress Reports. Retrieved on October 16, 2014, from http://oregonstate.edu/dept/ODFW/NativeFish/pdf_files/Odell_BT_Report_final.pdf.

A Twisted Tale of Red Knot Survival

By Joanne Garton

red-knot-600x450

It has happened countless times: I walk into my favorite restaurant only to find that it is out of breakfast burritos. The manager points me to the tamales without ever explaining if it was a lack of eggs, a problem with the oven, or an angry mob of hungry burrito-eaters that wiped out the supply this weekend. I leave hungry and find somewhere else to eat.

These days, the red knot birds in Delaware Bay are similarly exasperated, but with no other food to eat when their seasonal feast of horseshoe crab eggs are gone, the migratory birds are starving. Horseshoe crabs are the favored bait for a growing market of eel and conch farms, diminishing the supply and diversity of breeding horseshoe crab pairs left in the bay. Continue reading

In Search of Herps

SpottedSalamander800x600April showers bring more than May flowers, and birds aren’t the only creatures producing fantastic choruses in the springtime. While birders will set their alarms for 5:00am in order to catch the rainbow of spring migrants arriving in Vermont, herpetologists – that is, aficionados of amphibians and reptiles – will spend the wee hours of the night up to their knees in muck and water to glimpse the bizarre courtships of frogs and salamanders.

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Lessons from Snow Geese

SnowGeeseBeating wings fill my view. The snow geese are stark white, and the black tips of their wings pulse in contrast with their bodies. Hundreds – no, thousands – of these meaty birds move in unison. They squawk and honk, thousands of calls melting into an urgent and persistent roar.

At least that’s what I envisioned.

I had never seen snow geese, but I set out confidently to find the birds. I wanted to feel the wind from a thousand birds taking off at once. I wanted to feel their thunderous calls in my chest. Continue reading

The Tangle Test

Bobcat5There are many ways to rate a day. Perhaps you determine a day’s merit by how many to-do items you’ve crossed off, how many hours you spent outside, how many friends you ran into around town. My personal favorite rating system is the tangle test. By this measure, the best days leave me with bits of the field tangled in my braid as I untwist it in the evening.

Take February 20th, so good I couldn’t even wait until evening to untangle the mess and try to force my hair back into some semblance of order. As our van pulled away from the LaPlatte River Natural Area in Shelburne, my fingers battled a bird-worthy nest of twigs. Apparently that’s what happens when I, in true naturalist form, try to be a bobcat. Continue reading

Trapped Under the Ice

iceStaying warm in the winter is hard. Chickadees eat constantly in order to survive long, cold winter nights. Squirrels spend precious time and energy creating complex insulated nests. Deer browse on nutrient-poor twigs to get as many calories out of their surroundings as possible. Yet compared to fish and other aquatic organisms, terrestrial wildlife breathe easy – literally. As fish battle the cold through the long winter, they are steadily running out of oxygen.

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Icy Romance

During this arctic grip on Burlington, when almost anything outside seems to groan or crunch or crack, when the cold itself seems evil, a drama begins each morning in frigid waters off Perkin’s Pier. In Lake Champlain, Common Goldeneyes are getting hot.

These perky ducks bob and dive, lunge and flutter, cavort and compete. Nearly four months before our woods will glow with a rainbow of migrating songbirds, Common Goldeneyes are already courting – proof that icy water doesn’t necessarily put a chill on carnal desire. Continue reading

Considering Crows

I stopped running because I was surrounded by hundreds of crows.  It was dusk on the bike path along Lake Champlain.  Great masses of crows were flying in from the east to roost on the cottonwood trees along the shore.  They fed on sumac fruits along the train track; they mobbed the tree-tops and hop-flew from one twig to the next; they perched all over the bare branches of the trees.  In the light of the setting sun, their black feathers shone glossy and strong.  More kept arriving almost continuously from the east, flying in over the barge canal.  As they flew in they gave these weird, multiple-part calls, not at all like the usual “caw-cAW-CAW!”  What were they saying and why were they gathering here? Continue reading

The Burlington Naturalist Scavenger Hunt Series: Williston’s Muddy Brook Wetland

A special series of blog posts brought to you by Liz Brownlee 
The Burlington Naturalist Scavenger Hunt Series: Discover the area’s hidden gems.  Hone your naturalist skills.  Learn to see the treasures along every walking path, trail, and creek.
This series of scavenger hunts is a chance to get outside, look closely at the world around you, and enjoy nature.  The hunts are designed for budding naturalists of any age.
 
Hunt I: Williston’s Muddy Brook Wetland
 
Cruise east, away from the noise of Burlington. Slip south of Highway Two, curving along Hinesburg Road onto Van Slicken Road.  Pass the oldest house in Williston – light grey stones, hand hewn in the 18th century.  Crunch onto the gravel of the parking lot, leave your car (or bike!), and step into the wildness at Muddy Brook Wetland.
Cattails dance on the winter wind, and signs of animals layer this scrubby landscape. To the casual visitor, Williston’s Muddy Brook Wetland rejuvenates and relaxes.  It is a deep breath at the end of the day.
For the budding naturalist equipped with this scavenger hunt, the wetland also offers mid-winter wonder.  Look closely at the ground, the bent grasses, the flowing stream. Find and learn to identify scat, deciduous trees, nests, and other natural treasures. Enjoy!
Find the first scavenger hunt here: Scavenger Hunt- Williston’s Muddy Brook Wetland

Five Bodies

by Danielle Owczarski

I squint as I gaze offshore at the landslide scars jacketing the slopes of the Adirondack Mountains, and become cognizant of the illusion in quiet looking mountaintops, in reality, stark and frigid underneath the winter’s languid sun. I lift the camera to my eye and focus on the lone silhouette of a twisted black willow frozen to the beach, beaten by icy waves. I am in awe of its ability to survive, alone and isolated at the interface of water and earth, defying death.

I am standing on a deserted public beach in Burlington, VT, situated west of the bike path and the Burlington Electric Department. My husband and I, dog in tow and cameras in hand, are in pursuit of stories told by the natural world; those neglected by people behind weatherproofed door jams. During the winter months, protected by the shelter of my apartment, I cannot tune out the arctic breeze whooshing against my door. I imagine the biting wind flowing through my veins, breathing life into my limbs, pushing me to be a part of the world beyond my warm, snug box. Once outside, the indoor fog in my mind lifts and my periphery expands initiating a new awareness. I enter the natural world to feel alive. Continue reading