Articles By FishSens Staff

A tussock habitat — a floating island of dense plant growth

Fish Science and Species

Vegetation Biodiversity and Dissolved Oxygen in Aquatic Systems

Aquatic vegetation is important to ecosystems, but overgrowth is also tied to low-light conditions and hypoxia.

  • Posted December 18, 2023
An example of cultural ecosystem services mapping, with green areas showing where a fishery's capacity outweighs the demand of anglers

Fish Science and Species

Ecosystem Service Map Directs Anglers to Mountains Streams

In 2014, researchers conducted a regional study to map the quality, capacity and demand of anglers in several freshwater sources in NC and VA.

  • Posted October 23, 2023
Forested Watersheds

Fish Science and Species

Study: Forested Watersheds Make More Fish Food

A 2014 study in Daisy Lake looks at the effects of forested watersheds on lake fish as they rely on the tree line for food.

  • Posted October 2, 2023

Aquaculture

Eutrophication Can Have a Harmful Effect on Dissolved Oxygen in Aquaculture

Eutrophication can cause dissolved oxygen to crash which is a direct threat to the success of an aquaculture operation.

  • Posted February 25, 2021

Aquaculture

Underwater Cameras: A must-have tool for offshore aquaculture

Whether fixed or mobile, an underwater camera allows a necessary window into a world otherwise difficult to access.

  • Posted January 21, 2021

Aquaculture

The Pros and Cons of Optical Dissolved Oxygen Sensors

For accuracy and ease, dissolved oxygen sensors are the clear favorite over other measurement methods, but not all sensors are created equal.

  • Posted December 2, 2020

Aquaculture

Dissolved Oxygen: The most important measurement for aquaculture

Dissolved oxygen is vital to any healthy, life-sustaining aquatic system. And that includes aquaculture ponds and enclosures.

  • Posted November 19, 2020

Fish Science and Species

Dissolved Oxygen: A Key Component to Ethical Aquaculture

Monitoring and maintaining dissolved oxygen levels in aquaculture ponds is part of an ecosystem wide approach for raising aquatic animals.

  • Posted November 4, 2020

Fish Science and Species

How do dissolved oxygen sensors work? Technology makes it quick and easy

How is dissolved oxygen (DO) measured in aquaculture? We cover the basics of sensor selection and maintenance on todays post.

  • Posted October 29, 2020

Fish Science and Species

How Do Fish Respond to Low Dissolved Oxygen?

Low dissolved oxygen can be a killer on aquaculture farms. Even when it’s not, it can halt growth, help spread disease and more.

  • Posted October 1, 2020

Fish Science and Species

Use Hydrogen Peroxide to Boost Dissolved Oxygen Levels in an Emergency

Hydrogen peroxide can be used to boost crashing dissolved oxygen levels in aquaculture enclosures.

  • Posted September 17, 2020

Fish Science and Species

Finding The Right Aerator to Maintain Dissolved Oxygen in Aquaculture

You can achieve healthy dissolved oxygen levels in aquaculture by aerating your ponds. How to do so is a matter of choice.

  • Posted September 3, 2020

Fish Science and Species

The Daily Dissolved Oxygen Cycle, Explained

In aquaculture, the dissolved oxygen concentration rises and falls daily. Understanding this cycle can help you avoid problems from low DO.

  • Posted August 27, 2020

Fish Science and Species

Top 9 Questions about Dissolved Oxygen and Aquaculture

FishSens answers 9 questions about monitoring dissolved oxygen and it's importance in aquaculture operations and fish farming.

  • Posted August 11, 2020

Fish Science and Species

Ocean Fish Faired Well In Past Climates, With Some Shifts

By reviewing 85 million years of fish fossil records, researchers at Scripps Institution of Oceanography have found that the basic structure of the ocean ecosystem was able to remain fairly stable for tens of millions of years despite large environmental changes of the past.

  • Posted May 24, 2016
lake oahe walleye

Aquaculture

Tagging Study Charts Lake Oahe Walleye

South Dakota State University researchers have tagged more than 26,000 fish in the last three years during a study of Lake Oahe walleye. Plans are for one more year of tagging and an additional year beyond that of data collection to assess the lake’s walleye stocks.

  • Posted May 10, 2016

Fish Science and Species

Pelvis Helps Walking Fish In Thailand

In 1985, scientists discovered a walking fish living in a cave system in Thailand. The waterfall-climbing cavefish, Cryptotora thamicola, is completely blind and yet can make its way up an incline by using what closely resembles a tetrapod (four-limbed vertebrate) gait.

  • Posted March 28, 2016

Fish Science and Species

How Feathertail Knife Fish Can Lie To Each Other

As humans, we can sometimes tell when we’re being lied to. A shift in gaze, lack of eye contact, and changes in voice tone are all good indicators that something’s up. But science is still working to understand how some fish can tell if they’re being deceived.

  • Posted March 7, 2016

Fish Science and Species

Fish Gill Antibodies Keep Fish From Getting Sick

It’s kind of strange how fish can swim around with gills open directly to the water and not immediately get sick from all the waterborne pathogens swimming around them. It’s weird, but also pretty amazing.

  • Posted February 19, 2016

Aquaculture

Preserved Specimens Yield New Electric Fish Find

Scientists don’t prefer to describe new species of anything with only just a few specimens to base their descriptions off of. But in the case of two new electric fishes discovered in Gabon, an African republic, researchers simply had to make due with the fish they had.

  • Posted February 15, 2016