Browse Fish and Aquatic Life Resources

Lynn Ketchum
Displaying 1 - 10 of 39 resources

My pond has become a fly nursery. How can I get rid of them?

I have a 4 year old 12,000 gallon koi pond with a large waterfall. I went to clean the waterfall filters and add barley hay for the algae last weekend only to find thousands, maybe millions, of black fly larvae. I scraped the waterfall as best I could and turned the waterfall back on. The koi...

By Will Jessie | Featured Question

Increasing the abundance of a threatened or endangered species can deliver large economic benefits

Aug 14, 2019
A new study provides evidence that increasing the abundance of a threatened or endangered species can deliver large benefits to the citizens of the Pacific Northwest.

By Chris Branam | News Story

Hidden world of stream biodiversity revealed through water sampling for environmental DNA

Jul 23, 2019
For the first time, researchers have used a novel genomics-based method to detect the simultaneous presence of hundreds of organisms in a stream.

By Chris Branam | News Story

Extreme draining of Oregon reservoir aids young salmon and eliminates invasive fish

May 21, 2019
Low-cost, extreme draining of Fall Creek Reservoir aided downstream migration of juvenile chinook salmon – and led to the gradual disappearance of two species of predatory invasive fish in the artificial lake.

By Chris Branam | News Story

Marine scientist joins Oregon Sea Grant and OSU Extension as fisheries specialist

May 9, 2019
Angee Doerr, an interdisciplinary marine scientist, has joined Oregon Sea Grant and the Oregon State University Extension Service to work with the fishing industry on the central Oregon coast.

By Chris Branam | News Story

Young frogs that were stressed as tadpoles move less on land, putting their survival at risk

May 2, 2019
New Oregon State University research shows that juvenile northern red-legged frogs that have experienced climate-related stress as tadpoles are less likely to move on land, putting their survival at risk.

By Chris Branam | News Story

Seeing Climate Change in Bugs and Salmon

There are many ways to measure climate change. In northeast Oregon, scientists are investigating aquatic insects and how land management around waterways could potentially help or hinder salmon, which spawn in the streams.

By David Wooster, Sandy DeBano, | Video

Blend of warmer water, chemical exposure influence gene expression across generations in a coastal fish

Jan 31, 2019
Warmer water temperatures, combined with low-level exposure to chemicals, influence the expression of genes in the offspring of an abundant North American fish species.

By Chris Branam | News Story

2018 Evaluation of Pricing and Online Presence of Oregon Coast Tour Operators

This report is for companies along the Oregon coast that provide guided kayaking, salmon fishing and whale-watching tours.

OSU Sea Grant Publication

Slime proves valuable in developing method for counting salmon in Alaska

Jan 2, 2019
Scientists have published a novel method for counting Pacific salmon – analyzing DNA from the slime the fish leave behind in their spawning streams.

By Chris Branam | News Story