Restocking
California salmon hatchery managers likely gave a well deserved sigh of relief when record winter rains of 2016/17 ended a five year drought and restored flows to the state’s salmon producing rivers.

But the legacy of those drought years continues to haunt them, as poor adult returns this fall have reduced the egg production goals at Coleman hatchery, the states largest producer of Chinook fry, by half, according to Sacramento area media.

Coleman aims for 12 million smolts to release each spring into Battle creek, a tributary of the Sacramento river. This year, it will be around six million. Poor adult returns to their natal stream, prevented staff from collecting and fertilizing enough eggs.

However, there were plenty of Chinook around the California Central valley last fall, enough to provide a commercial and sports fishery, and other hatcheries met and exceeded their goals, but the Coleman fish just didn’t come straight home. Managers say that giving smolts a ride down river in the spring, in response to past drought conditions, is to blame.

Hatchery staff were able to collect sufficient eggs and sperm to produce fry on target during the drought years. But spring river conditions in 2014 and 2015 were described as “abysmal”. Warm water temperatures and low river levels could harm the freshly released smolts and increase the likely hood of predation, so in those years they were pumped into tanker trucks and driven the 280 miles down stream to acclimatization pens at the mouth of the Sacramento river. This means that they missed the normal “river imprinting” process and that has disoriented the fish that attempted to find their way home this fall.

Historical returns to the Coleman are around 143,000 adult fish. Last fall saw merely 3,000. That was only enough to collect and fertilize about four million eggs. But staff were able to round up some of the missing brethren. Wire tags indicated that many of the strays ended up at Nimbus hatchery on the America River, another branch of the Sacramento, and they gave up another two million eggs for Coleman production.

In an effort to avoid mixing genetic strains, US Fish and Wildlife Service officials declined to bring in fish from other watersheds to increase Coleman numbers.
How government and tribal members have combined forces to save a rare and endangered species of trout in Arizona.


The Apache trout is named for the people and the place that are intertwined with one another. The yellow trout ornamented with black spots, white-tipped fins, and a raccoon-like eye mask lives naturally only in the headwaters of the White, Black, and Little Colorado rivers near the New Mexico border. These waters harbor some of the last remaining populations of this pretty trout found nowhere else but in streams that rim the White Mountains of Arizona.

The fish has been well known to anglers for some time. Local farmers and ranchers made summertime forays into the high country to catch them. One correspondent, simply “J.H.” from Show Low, Arizona, wrote in a July 1886 issue of the St. John’s Herald: “I speak truly when I say it was the most enjoyable period of my life.” He recounted how he and his pals caught scads of Apache trout from the White River during a prolonged summer outing. The sport fishery was renowned.

The Apache trout had become known to science a few years earlier in 1873, when it was collected by members of the U.S. Geographical Survey, and wrongly identified it as a Colorado River cutthroat trout. Other scientists collected it from the White Mountains from time to time, but it wasn’t until a century later in 1972 that the fish was properly recognized as a unique species and assigned its current scientific- (Oncorhynchus apache) and common names. A year later it was placed on the endangered species list.

Places everywhere have their scars, and the White Mountains are no exception. The loss of habitat from excessive timbering and grazing and the introduction of non-native trout species were detrimental to the native Apache trout. High sedimentation during the spring run-off affected trout reproduction; fine sediments clogged porous gravel beds where oxygen-rich water should percolate over incubating eggs.

Over the last 75 years, through the actions of the White Mountain Apache Tribe, followed by work with the U.S. Fish and Wildlife Service (Service), U.S. Forest Service, and Arizona Game and Fish Department, Apache trout populations have rallied. The future looks sunny for the species; it could be the first sport fish to be recovered and removed from federal threatened or endangered species protection.

Conservation work continues. Cattle have been fenced out of select Apache trout streams within the Apache-Sitgreaves National Forest and along streams within the Fort Apache Indian Reservation. Non-native sport fishes are no longer stocked near Apache trout waters. Alchesay-Williams Creek National Fish Hatchery, located on the reservation, continues to raise Apache trout for sport fishing. Apache trout from the federal fisheries facility are stocked on the reservation and they are shared with the Arizona Game and Fish Department to be stocked in neighboring national forest waters. Many streams are open to anglers.

The Service’s Arizona Fish and Wildlife Conservation Office (FWCO) biologists remain shin-deep in Apache trout work, striving toward that goal of recovering the threatened species. They expend a great deal of energy removing non-native brown trout and brook trout from Apache trout waters. They accomplish this with backpack-mounted electrofishing gear where the unwanted fish are stunned and netted from high mountain streams.

A new technology known as environmental DNA (eDNA) guides their work. Fish shed skin cells and of course eliminate bodily waste into the water, which then contains the animal’s DNA that can be detected in the water. Biologists from the FWCO and tribe collect stream water from several sites over long reaches, and pass the water through filters that are analyzed by U.S. Forest Service’s Rocky Mountain Research Station. These lab results then identify those stream sections that contain the unwanted non-native trout.

Periodic population monitoring continues, as does barrier monitoring. Where unwanted non-native fishes occur downstream, constructed barriers keep those below at bay, and the pure Apache trout populations protected above. Constructed barriers now exist on 23 creeks.

At present, Apache trout exist in 28 populations and swim in 170 miles of streams. The lot of Apache trout has changed significantly. In a relatively brief period the species has emerged from anonymity and mistaken identity to the point when the White Mountain Apache Tribe stepped up to protect their trout. It’s now the official state fish of Arizona and a favorite among anglers.

For more information contact: Craig Springer, U.S. Fish and Wildlife Service – Southwest Region, Albuquerque, New Mexico. www.fws.gov/southwest

The Inner Bay of Fundy Atlantic Salmon were declared endangered in 2003. Of the more than 40 rivers that were home to the species, mostly have none now.
The Cook Inlet Aquaculture Association’s (CIAA) board of directors has decided to proceed with caution. It will reduce the number of pink salmon planned for release in the spring from its Tutka Bay Lagoon Hatchery. The hatchery is located on a lagoon connected to Kachemak Bay which lies within Kachemak Bay State Park.
The Apache trout is named for the people and the place that are intertwined with one another. The yellow trout ornamented with black spots, white-tipped fins, and a raccoon-like eye mask lives naturally only in the headwaters of the White, Black, and Little Colorado rivers near the New Mexico border. These waters harbor some of the last remaining populations of this pretty trout found nowhere else but in streams that rim the White Mountains of Arizona.

Three hatcheries from Krasnodar Krai in Russia will release 500,000 sturgeon fry per year, or 1.5 million in total, to the Kuban River and Azov Sea from 2017 to 2019, partly to help mitigate damage done by construction of the Kerch Strait Bridge.

Hokkaido’s hatchery stock enhancement program began in the late 19th century and has continued for over 120 years. The first facility to be constructed was the Chitose Central Salmon Hatchery, built in 1888 on a tributary of the Ishikari River in northwestern Hokkaido.

The Whiskey Creek Shellfish Hatchery at Netarts Bay in Tillamook Oregon produces a third of all oyster larvae on the West Coast of the US, according to Alan Barton, Production Manager. It is the state’s only shellfish hatchery. Owner-operator, Sue Cudd confirmed for HI that 2016 was the hatchery’s best year yet for production of oyster spat. After such a banner year, it could be hard to forget that the operation nearly shut down a decade ago.

A new $4+ million research project in British Columbia, Canada will result in identification of genes that will help trout better survive future conditions, including warmer lake water temperatures and perhaps higher alkalinity.

Late last fall, the US Fish and Wildlife Service working with its partner agencies, the New Mexico Department of Game and Fish and the US Forest Service, released two age classes of Gila trout into Mineral Creek ranging up to a foot long.

Inhabiting the cool, fast flowing reaches of the Murray River and her tributaries, the ecological niches of the trout cod and Macquarie perch have been disrupted by agriculture and forest clearing, and their migratory routes blocked by dam construction.

“When I first started growing oysters in Willapa Bay in 1979, we could put out shells and collect seed,” recalls Dave Nisbet, owner of Goose Point Oyster Company. “That’s the way I built up my business.”

Most of Ontario’s native freshwater mussel species have a unique life history that includes a parasitic larval stage known as glochidia. To complete their life cycle these glochidia need to attach themselves to the gills of host fish where they embed and eventually metamorphose into fully formed juvenile mussels.

The UK energy supplier, Scottish and Southern Energy Plc (SSE), recently completed a £750,000 salmon hatchery investment in Scotland to honour its commitment to ensure that its hydro schemes don’t result in the reduction of local wild salmon stocks.

Troutlodge’s European Rainbow trout egg production sites lie within the British Isles on the independently governed Isle of Man. The island’s status is that of a self-governing Crown dependency, but via the UK’s current membership in the EU it is considered part of the customs territory of the European Union, facilitating trade and stock movements.

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