Mystery of world record solved?

PHOENIX — Have the redear sunfish at Lake Havasu really gone quagga crazy? Have these panfish that really can fill a pan, and are widely regarded as one of the better fish species to eat, found a surplus of invasive quagga mussels to munch?

A mystery remains: Redear sunfish at Havasu have been reaching world record sizes. But why, exactly? Let’s dive into this piscatory puzzle.

Five years ago, “panfish” took on a new meaning.

We’re at the time of year when Lake Havasu tacked its world-record pin on the fishing map. On February 16, 2014, Hector Brito caught a 17-inch, 5.78-pound world-record redear sunfish on a dropshot-rigged nightcrawler.

“I didn’t expect the record to last this long,” Brito said. “It’s amazing.”

This 45-mile fishing wonderland created by the Colorado River on the western-most strip of Arizona, adorned like a leather belt by the regal London Bridge, allows an angler to fish from the beach on the Arizona side and see the California mountains on the other. Some of those anglers said they witnessed a dramatic increase in the sizes of redear sunfish from 2009-2014 that — coincidence or not — occurred after invasive quagga mussels were first discovered in 2007 at Havasu.

In 2014, the U.S. Bureau of Reclamation (BOR) did a study about the effects of redear and bluegill on quagga populations and found these sunfish do consume quaggas. Even more, the redear reduced quagga numbers by as much as 25 percent. The experiments of the study were conducted in field enclosures of Lake Havasu, as well as in the BOR’s Boulder City, Nevada Fish Lab. See the updated report.

The Arizona Game and Fish Department can’t verify that redear sunfish, also known as “shellcrackers” because of their pharyngeal teeth (teeth in their throat) that allow them to crush crustaceans such as snails, are reaching unprecedented sizes due solely to quaggas as an additional food source. Other biological factors include Havasu’s food base of grass shrimp and redswamp crawdads.

Regardless, Havasu is home to some of the biggest shellcrackers on the globe.

Kaibab National Forest kicks off third year of citizen science project

Photo of a burrowing owl that was submitted as part of the Kaibab National Forest’s iNaturalist citizen science project. – Kaibab Forest Photo

WILLIAMS — Forest Service biologists are inviting eager naturalists, outdoor enthusiasts, and amateur scientists to join the citizen science team and help in documenting the plants and animals that inhabit the Kaibab National Forest. At the beginning of the year, forest specialists launched the Kaibab NF 2019 Citizen Science Project through the free online iNaturalist platform so that visitors can share pictures of flora and fauna they’ve discovered on the forest.

This is the third year that the Kaibab National Forest has promoted an iNaturalist citizen science project, and the observations recorded are helping to improve forest managers’ understanding of the abundance and distribution of species.

Photo of the Typocerus gloriosus beetle that was submitted as part of the Kaibab National Forest’s iNaturalist citizen science project. – Kaibab Forest Photo

“iNaturalist is an amazing platform that was created to document biodiversity throughout the world,” said Natasha Kline, forest biologist on the Kaibab National Forest. “While we’ve scaled it down to the forest level for our project, these observations are both improving forest management practices and wider scientific knowledge.”

When Kaibab National Forest visitors capture photos of plants or animals and share them through iNaturalist, they are contributing to a global biodiversity database. The iNaturalist platform shares findings with scientific repositories to help scientists around the world find and use data. They are also contributing to understanding species closer to home, as Kaibab National Forests biologists are monitoring project-specific findings and participating in helping to identify and confirm local discoveries.

Since the start of this citizen science effort, visitors and employees have made more than 5,000 observations across the Kaibab National Forest. This has included more than 800 different species of plants, birds, insects, mammals, reptiles, fishes and more. Unsurprisingly, due to its abundance in northern Arizona, ponderosa pine holds the top spot for most observations. Other discoveries, however, have proven much more telling about current forest conditions, leading to the potential to help inform future management approaches.

“We didn’t have any physical documentation regarding burrowing owls in the forest,” Kline said. “We’ve had verbal reports of people seeing them but not much else. Over the course of our citizen science projects, though, we have now received two photos of burrowing owls near the end of the breeding season. These kinds of unique observations, when verified, can lead to important scientific documentation.”

The Kaibab National Forest’s citizen science effort has also led to at least one rather remarkable discovery. In 2017, iNaturalist user “birding4fun” posted images of a distinct-looking beetle that turned out to not only be rare but also have no previous photographic evidence in the scientific literature. The insect was identified by a beetle expert on the platform as a Typocerus gloriosus beetle, one of the rarest longhorn beetles in the United States. The observation earned iNaturalist’s “Observation of the Week” title and caught the attention of a variety of media outlets.

Whether rare or common, observations shared as part of the Kaibab NF 2019 Citizen Science Project can help inform forest and wildlife management and provide information about species that might not have previously been known. The iNaturalist platform assists managers by documenting the presence of rare or introduced species so that actions can then be taken to help protect or eradicate them.

Forest managers encourage those interested to “See, Snap, and Share” their Kaibab National Forest discoveries through iNaturalist as part of the citizen science effort. iNaturalist offers the free app for both the iPhone and Android, which makes uploading observations easy. Through the platform, forest visitors can record and organize nature findings, meet other nature enthusiasts, and learn about the natural world.

“These citizen science projects enhance the visitor experience while providing the Kaibab with valuable information about our resources,” said Mark Christiano, GIS coordinator for the Kaibab National Forest. “In 2019, I’m looking forward to creating more educational and outreach opportunities for forest visitors, showing them how they can use iNaturalist to learn more about our forest’s amazing plants and wildlife. I’m hoping to encourage visitors to explore trails and document their fantastic observations.”

Through connecting different perceptions and expertise of the natural world, iNaturalist seeks to create extensive community awareness of local biodiversity and promote further exploration of local environments.

County offices closed in observance of Presidents Day

FLAGSTAFF — All Coconino County administrative offices will be closed Monday, Feb. 18 in observance of Presidents Day.

While the administrative offices at the Sheriff’s Office will be closed, Dispatch, Patrol and Detention will be open. Records will be open on Monday Feb. 18, from 8 a.m. – 4 p.m., with limited staffing. Please dial 9-1-1 for emergencies. For non-emergencies, dial 928-774-4523 to connect with the non-emergency Dispatch number or to leave a message for one of the administrative offices.

In the event of a snow storm or other impactful weather during the holiday, County Public Works crews will be deployed to keep County roadways open and passable.

Coconino County’s parks and natural areas will remain open during the holiday, but administrative offices at Fort Tuthill will be closed and limited staff or services will be available. The Fort Tuthill Bike Park is currently closed. Please do not sled on the Fort Tuthill Bike Park or you will damage the features which were built specifically for cyclists to hone their skills on jumps and flow trails. Drinking water has been turned off at all parks, but bathrooms are still available at Raymond, Peaks View and Sawmill County Parks. Water and bathrooms are available at Louise Yellowman County Park, located in Tuba City.

Coconino County Public Health Services District (CCPHSD) Animal Management will have an officer on duty Monday, Feb. 18 from 7 a.m. – 5:30 p.m. Contact the CCPHSD Animal Management office at 928-679-8756, leave a message and an officer will respond.