The tale of two cods in a changing system
Oceans are experiencing both warming temperatures and increasing acidification. Rising oceanic carbon-dioxide levels lead to a decrease in pH, resulting in a phenomenon called ocean acidification. These physicochemical changes are […]
Living Inside the Cisco Layer
Northern Indiana is home to around 450 natural lakes created from the movement of glaciers across the landscape thousands of years ago. In the cold, oxygenated waters of some of […]
‘Cloud’ technology for fish?
You’re in a canoe floating down the river, and you hear a splash not far off. By the time you turn your head, the cause of this sound is now […]
Low oxygen degrades habitat but makes fish easier to catch
Lake Erie has a long history of cultural eutrophication (excessive nutrient inputs), algal blooms and low oxygen levels. A widespread campaign in the 1970s to eliminate phosphorus from household detergents, […]
Habitat Connectivity in Amazon Floodplain Fisheries
Many fish in the Amazon river floodplain, including several economically important species, exhibit some form of migration behavior. Some, such as the catfish Brachyplatystoma rousseauxii, migrate the entire length of […]
Supporting National Fish Habitat Partnership’s conservation and restoration activities near you
I stood at the cliff’s edge, looking down on the winding river below me and watched schools of Steelhead as the migrated up a gorgeous river in Washington State. The […]
Non-native Predator Influences Habitat Preferences in a Freshwater Fish
The year of 1894 marked the first time Rainbow Trout Oncorhynchus mykiss, a species sought out by anglers on all six continents except Antarctica, were introduced into the streams of […]
Remove the dam, restore the river
Our need for water to power our homes, irrigate our fields, and control flooding has resulted in the obstruction of rivers through the construction of dams. We are aware of […]
Protecting sharks through spatial management
In recent years, shark populations have seen a significant decline due to a variety of factors including fishing pressure. Highly migratory, large bodied sharks are particularly susceptible to fishing pressure […]
Intentional River Fragmentation: Can It Be a Good Thing for Fish?
“We’ve spent years convincing the public of the need to maintain connectivity in aquatic systems. Now the challenge is to explain why there are exceptions to that paradigm.” – F. […]
Considering Future Antarctic Oceanic Conditions in Concert
Our oceans are becoming warmer and more acidic due to anthropogenic CO2 and marine ectotherms, or animals dependent on external sources of body heat, must adjust to these new environmental conditions. Many […]
Climate change may impact salmon habitat
Changes in land use and local habitat conditions threaten aquatic life in streams and rivers, but this occurs against the backdrop of climate change. To overcome local and watershed degradation, […]
Knutson Dam removed by Midwest Glacial Lakes Partnership and collaborators
Cass Lake is a beautiful 16,000 acre lake in northern Minnesota known for its abundant and large Walleye (Sander vitreus). The Upper Mississippi River flows from Cass Lake into Lake […]
Persistent in pollution: Invasive Round Goby succeed in highly contaminated areas
You’ve probably heard of invasive species. You may even be able to name a few and describe how they impact ecosystems. Invasive species are non-native species that have undesirable effects […]
Where does fish habitat restoration fit in plans to revitalize the Los Angeles River?
The Los Angeles River Revitalization Master Plan is an ambitious project, seeking to balance flood protection with ecological, economic, and community development interests along 32 river miles. Passing between the […]
Assessing fish abundance using underwater video
Overfishing threatens many fisheries world-wide. Conservation strategies and regulations put in place to protect fisheries rely heavily upon estimates of the abundance and distribution of fish. Fisheries managers have traditionally […]
Fish Community Structure in the Cenotes of Mexico
The Yucatán Peninsula is home to a unique group of underwater habitats that look like circular swimming pools. These beautiful formations are known as cenotes, meaning “natural well” in Spanish. […]
Improving our Impoundments
Dams are concrete roadblocks along an aquatic road; a perceptible challenge to habitat connectivity. Impounding rivers creates reservoirs, turning a natural river system into a lake. This can affect water […]
Attention: World Fish Migration Day Needs Your Help!
Rivers are an important part of our way of life. They provide hydropower, drinking water, fishing, irrigation, recreational activities, and transportation, among other benefits. Rivers are often altered to enhance […]
Reef habitats and fishermen: developing a community-based marine reserve in Antigua
Sometimes to save the thing you love most, you have to leave it behind. That is exactly what Ruleo Camacho did when he left his home in Antigua and traveled […]
