A new study shows since 1970, more than 80% of the global populations of freshwater migratory fish have declined significantly. The report calls developments in its Living Planet Index "distressing," and faults habitat loss and degradation. It says factors like river fragmentation due to dams, and agricultural encroachment, account for half of the threats.

Michele Thieme, deputy director of freshwater for the World Wildlife Fund, monitors freshwater species, and said though the trend is heading downward, there are efforts underway to save these species.

"On average, we've seen freshwater migratory fish populations in North America decline by 34% since 1970. This is a little bit lower within what we're seeing globally, but it's still not a good number," she said.

The Index follows more than 1,800 populations of 284 native, migratory freshwater fish species from around the world. Thieme said these fish often make the difference in food security and nutrition for vulnerable communities, while supporting the livelihoods of millions in local and recreational fishing industries and global trade.

Thieme added despite the bad news, she is heartened by efforts to reverse the trend. Last month during Earth Week, state, Tribal and local leaders from across the country gathered for a White House Water Summit. At the event, the Biden Administration announced a Freshwater Challenge, part of its America the Beautiful initiative to conserve and restore America's rivers, lakes, streams and wetlands.

"We're very excited that the U.S. government has taken such a leadership role in setting the specific target of restoration of rivers and other freshwater habitats. That's really going to be critical for time, for the populations of freshwater species to rebound," Thieme said.

Thieme added more than 100 inaugural members - including her organization - have signed on to support freshwater restoration in communities in seven states, with eight Native nations and 24 local governments.

The federal Bureau of Land Management has published a new plan for managing public lands which will put oil and gas management in sync with Colorado's big-game conservation policies.

Suzanne O'Neill, executive director of the Colorado Wildlife Federation, said the proposed final plan, which will impact BLM-managed lands in all 64 Colorado counties, is an important move to protect Colorado's iconic wildlife.

"It will help safeguard mule deer, elk, pronghorn and bighorn sheep habitats," O'Neill outlined. "These populations inhabit almost three quarters of the 8.3 million surface acres that the BLM manages."

The plan would amend management plans for 12 BLM field offices in Colorado by limiting active oil and gas sites to one per square mile in big-game high priority habitat. It also requires operators to minimize and offset direct, indirect and cumulative adverse impacts on wildlife. The BLM's proposed final Western Solar Plan revision is expected to be published this summer.

John Howard, former chairman of the Colorado Parks and Wildlife Commission during the Hickenlooper administration, believes the plan will give energy developers more certainty and should also cut the red tape found when dealing with multiple regulatory environments, which are not always on the same page.

"I think most of them are going to react very positively to having something that aligns so well between the federal government, the state government and local government," Howard projected.

The BLM is charged with managing lands owned by all Americans for multiple uses, including hunting, fishing, camping, rafting and hiking. O'Neill pointed to a 2020 report showing work is also needed to ensure trails and other recreation areas do not harm wildlife.

"They need to be appropriately sited, so they don't disturb wildlife that are birthing in the spring, or trying to migrate," O'Neill urged. "They need to be located in the right places."

Support for this reporting was provided by The Pew Charitable Trusts.


get more stories like this via email

Virginia's Marine Resources Commission is ending the winter blue crab harvest prohibition.

Crabbing is permitted from March to the middle of December. Extending the harvesting season targets adult female crabs which can harm this species' future. Environmental groups argued the Blue Crab Stock Assessment Committee's research does not support increasing the harvest.

Chris Moore, Virginia executive director for the Chesapeake Bay Foundation, said recent winter dredge survey results showed it is an ill-timed decision.

"For the last 8 or 9 years or so, we had actually seen higher numbers of adult females every year going back to 2016 except for 2022," Moore outlined. "That was the year where we actually saw the lowest number of crabs total in that winter dredge survey."

The most recent winter dredge survey showed a continued decline of about 20 million blue crabs in Chesapeake Bay. Moore noted the committee's decision is preliminary and depends on several previous determinations, ranging from the season's duration, number of participants, allowable catch and harvest location. A final decision is set for September.

Reopening the winter harvest will not endanger or eliminate blue crabs from Virginia waterways due to thresholds for the population. Moore thinks the committee should wait for a stock assessment with Maryland and the National Oceanic and Atmospheric Administration to be completed. Since the last one was done in 2011, he argued more is known about blue crabs.

"We continue to learn more about the population dynamics of the blue crab," Moore emphasized. "We continue to learn more about some of the predators of the blue crab, like catfish, and so we really need to be thinking about what is the state of the resource now when it comes to managing the species."

Moore added the stock assessment's results can better determine how to manage blue crab populations. Studies show around a quarter of the female blue crab population was removed from Chesapeake Bay by fishing in 2023, below both the threshold to pause the harvest and the target for sustainable blue crab fishing.


get more stories like this via email

The Bureau of Land Management says it will start a wild horse roundup in Wyoming's White Mountain area, but wildlife advocates say the plan exceeds the agency's authority.

The BLM aims to gather nearly 600 wild horses starting August 15, in an area northwest of Rock Springs - to prevent what it calls 'further deterioration' of the land health due to impacts from the animals.

The group Wild American Horse Conservation says the agency used incorrect data to reach that number, improperly including foal counts.

Suzanne Roy, executive director of the group, said bad numbers are a problem for the local eco-tourism business the horses support, through a Wild Horse Scenic Loop drive.

"We're very concerned that the BLM is playing with numbers to remove more horses than they're legally allowed to," said Roy. "And if they are allowed to proceed, it will reduce the herd to such a low number, you'll never be able to view the horses."

Roundups involve gathering horses into holding pens until they're adopted.

But Roy said there are more horses being held than the adoption market can absorb, and that difference costs taxpayers about $70 million a year.

Roundups are an alternate population control method to sterilization. But Roy said her group advocates instead for fertility control.

"Basically, it's called immunocontraception," said Roy, "and it's a vaccine that creates an immune response in the animals and it prevents fertilization."

Roy said this method is also reversible, which is important in case of unexpected population die-offs.

The BLM is a multiple-use agency charged with balancing numerous interests - including those of the public, grazing rights and multiple wildlife species.

James "Micky" Fisher - lead public affairs specialist with the BLM Wyoming field office - said the agency isn't opposed to fertility treatments, but they're more difficult to implement.

"Unfortunately, with herd management areas of this size and even larger ones," said Fisher, "the sheer number of horses that we're required to gather to get down to the appropriate management level, fertility treatments and darting practices, they're just - they're insufficient."

A larger roundup is currently underway across four Herd Management Areas in central Wyoming.

Fisher said the BLM started the roundup on July 1, to gather over 2,700 animals.




get more stories like this via email