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In Virginia and South Carolina hatcheries, biologists keep a close eye on shad and striped bass while taking time to focus on something that will never wear scales: mussels.
And down in Florida, hatchery scientists charged with making sure rivers and streams are stocked with catfish and bass are singing the praises of a tiny bird they鈥檙e raising outside their labs.
Over in Oklahoma and Louisiana? Fishery biologists have become experts in the art of raising — and the correct way of handling — alligator snapping turtles.
Mussels, birds, turtles: these creatures, and more, are living at national fish hatcheries across the nation. The bet365下载ios (Service) which operates the hatcheries, welcomes their presence. After all, preserving species is what the Service does.
Last year, 13 hatcheries nationwide were involved in propagating creatures other than fish. Those hatcheries are hosts to 30 non-fish species — shelled, feathered, hopping — as well as growing more than 100 species of fish.
Statistics show that the past decade witnessed a spate of non-fish species growing in hatcheries. Among them: the Wyoming toad, the Barton Springs salamander and the gopher tortoise.
The expansion of hatcheries鈥 duties 鈥渟peaks to the need out there鈥 to look after imperiled creatures, said Nate Wilke, the Service鈥檚 branch chief of hatchery operations and applied science.
What is happening at fisheries is eye-opening, added David Miko, the Service鈥檚 division chief of fisheries and aquatic conservation.
Miko, who joined the Service about four years ago after two decades of fisheries work in Pennsylvania, has watched fisheries take on ever more duties.
Was he surprised to learn that fisheries were so closely involved with raising creatures that lacked fins? 鈥淚鈥檇 change the word 鈥榮urprised鈥 to 鈥榠mpressed鈥,鈥 he said.
The host hatcheries vary, but have at least one thing in common: They had the space to accommodate something new.
And this: The people running them recognized they needed to act.
鈥榃e鈥檝e come full circle鈥
They don鈥檛 have gills. They aren鈥檛 covered in scales. And they don鈥檛 swim. No matter: They鈥檙e residents of the Welaka National Fish Hatchery.
Earlier this year, 18 federally endangered Florida grasshopper sparrows arrived at the hatchery, midway between Jacksonville and Orlando. Tony Brady, the hatchery鈥檚 deputy project leader, enjoys having them on site.
鈥淲e go out in the evenings and watch them,鈥 said Brady, who鈥檚 been with the Service 16 years. 鈥淭hey chase crickets.鈥
They鈥檙e young birds, in their second year, and will stay at the hatchery for about a year before they鈥檙e released into the wild. Some may be sent to a facility to be used as breeders.
The birds, housed in a free-standing, netted structure structure
Something temporarily or permanently constructed, built, or placed; and constructed of natural or manufactured parts including, but not limited to, a building, shed, cabin, porch, bridge, walkway, stair steps, sign, landing, platform, dock, rack, fence, telecommunication device, antennae, fish cleaning table, satellite dish/mount, or well head.
Learn more about structure originally designed to be a build-it-yourself carport, are doing just fine.
And let鈥檚 not forget the hatchery鈥檚 other non-finned residents — Eastern indigo snakes. The snakes, which are listed as threatened, live in specially built trays until spring, when they鈥檙e sufficiently mature for release into the wild.
The hatchery is home to 30 snakes. By snake standards, they鈥檙e living the good life — fed three times a week, their living quarters cleaned daily.
Indigos, Brady noted, are non-venomous and are North America鈥檚 longest native snake. Some can exceed 8 feet.
The hatchery, Brady noted, continues doing what it鈥檚 always done — raising two strains of striped bass for release in different river systems, as well as catfish and Atlantic sturgeon.
The hatchery once was a deer and quail farm before converting to raising fish. Now, with grasshopper sparrows flitting about in an aviary and snakes wiggling about in trays, said Brady, 鈥渨e鈥檝e come full circle.鈥
Rescuing turtles
Ask the biologists at Tishomingo hatchery in Oklahoma about raising catfish and bass and they can rattle off stats faster than you can cast a Jitterbug fishing lure into a lake. They also can tell you about another swimming species — one that can take off your finger with a single snap.
For almost 20 years, the hatchery has been raising endangered alligator snapping turtles, the largest snapping turtle in North America.
In the late 1990s, biologists learned that the species was in 鈥渟teep decline,鈥 said Kerry Graves, who manages the hatchery, located 100 miles south of Oklahoma City. In Oklahoma, the population had dwindled to one viable population, Graves said.
Somebody had to do something. Tishomingo opened its doors, and a pond, to nearly a dozen turtles from the Oklahoma population.
鈥淥ur interest in the beginning was to figure out how to raise these things in captivity,鈥 he said. That meant phone calls and visits to zoos.
The research paid off. In 2002, the hatchery hosted its first nest in the pond. Five years later, with a growing population in captivity, the hatchery released its first turtle at the Sequoyah National Wildlife Refuge. 鈥淭hrough the years,鈥 Graves said, 鈥渋t鈥檚 just evolved.鈥
An evolution fueled by experts and energetic grad students who aren鈥檛 afraid to get wet — or worse. Alligator snapping turtles are as pleasant as they are pretty — in other words, not at all. 鈥淥ne time, a young one bit me, yeah,鈥 Graves said. Another time, a grown snapper took the tip of a colleague鈥檚 index finger.
Over the years, the folks who knew nothing about alligator snapping turtles have become experts. 鈥淲e鈥檝e pretty much written the book on alligator snapping turtle culture,鈥 Graves said.
Others have read it. Tishomingo fields requests for turtles from Louisiana, Illinois, Texas and other states where the big reptile鈥檚 future remains shaky.
For Graves, the turtle is a hard-shelled reminder of how far he鈥檚 come in Service work. He started as a grad student in Texas, bounced around a bit, and finally came to Tishomingo — never dreaming he鈥檇 become a turtle guy.
That鈥檚 fine, too. 鈥淚t keeps life interesting,鈥 he said. 鈥淭hey鈥檙e really neat creatures.鈥
Mussels and more
In Virginia, the Harrison Lake National Fish Hatchery for years has specialized in stocking rivers that run to the Atlantic Ocean. Then it got into mussels.
The hatchery is part of a collection of Service hatcheries that have embraced mussel propagation, and for good reason: Mussels help keep rivers and streams clean. They鈥檙e also an indicator of water quality. Hatcheries in West Virginia, Wisconsin, Tennessee, Kentucky and South Carolina, among others, make mussel propagation a priority. The Service is working with North Carolina partners to propagate mussels, too.
The same is true at Harrison Lake. In 1994, biologist Michael Odom wrote a proposal to expand the fishery鈥檚 duties to include growing mussels. A decade would pass. Odom would be promoted to hatchery manager.
But the words Odom wrote apparently weren鈥檛 forgotten. In 2004, officials gave him a green light to propagate mussels. By 2007, with the help of the Virginia Department of Game and Inland Fisheries, Harrison Lake had its first mussel 鈥済row-out,鈥 taking juvenile mussels and raising them until they would be large enough to be planted in streams.
That first effort produced mixed results and spawned the Virginia Fisheries and Aquatic Wildlife Center at Harrison Lake, a cooperative venture between the Service and Virginia鈥檚 game and inland fisheries department.
Odom realized that he and his colleagues had a learning curve not unlike a mussel鈥檚 shell — something that rose sharply to a crest. In 2008, they tried to propagate the mussels the way nature intended, with gravid, or pregnant, females releasing their young to temporarily mature on a host fish鈥檚 gills before dropping on a stream bed. At the hatchery, that bed was located inside a tank.
Since then, the cooperative work at Harrison Lake has increased mussel production nearly every year. In 2018, it propagated 898,000 mussels. Some will be ready to be placed in streams early next year; others will need to mature longer.
The mussels range from green floaters to the James spinymussel, which is listed as endangered. Odom hopes the work at Harrison Lake will help recover some listed mussels and keep other at-risk species from taking a place on the Service鈥檚 threatened and endangered list.
As manager, Odom isn鈥檛 involved in the day-to-day mussel operations; he leaves that to others. Since he was schooled in the affairs of finned swimmers, Odom recognizes that he鈥檚 not the expert on mussels. 鈥淚鈥檓 still a fish guy,鈥 he says.
But the shelled creatures, he admitted, have muscled their way in to his affections.
Saving toads
Ana Bode wasn鈥檛 long out of the University of Wyoming when a professor pointed her to a job at the Saratoga National Fish Hatchery. She鈥檇 be working with a grumpy looking creature called the Wyoming toad. Bode said OK.
That was four years ago. Since then, Bode, a biological technician at the hatchery, has become knowledgeable in the life cycles of an endangered little hopper that is prey to a fungus affecting amphibians worldwide, as well as to predation.
The hatchery has been propagating them since 1997, from tadpole to toad. It is a process involving injecting the toads with hormones to enhance their reproduction. Specialists also outfit some of the creatures with tiny transmitters to chart their movements — toad tracking, if you will.
Attaching the transmitters calls for a deft touch, said Bode. 鈥淭hey鈥檙e really sensitive,鈥 she said.
Bode has learned a truism about toads, too. Their grimace belies their true nature. The toads only look crabby.
And, yes, she has her favorites — usually, those that look her in the eye. Forthright toads.
鈥淚t just depends on the toad,鈥 she said. 鈥淚t鈥檚 as if they鈥檙e acknowledging you, whether they really are or not.鈥
Wilke, the Service鈥檚 branch chief of hatchery operations and applied science, acknowledges something else: Some hatcheries will continue their mission to propagate creatures that may not swim. More hatcheries may join them, too.
鈥淭he breadth of knowledge in raising species in the bet365下载ios is massive,鈥 he said. 鈥淲e have the facilities, the people and the experience to make this work.鈥
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