Despite the threat of overfishing in many fish populations, fisheries managers often lack accurate plans and quota systems to allow a sustainable harvest. Traditional methods of estimating fish ...

onWater Fish is the first-ever recreational mobile mapping app to integrate a photo-based fish measurement tool alongside a suite of community science tools, empowering everyday anglers to make a real ...

A new study by marine biologists reports that seals can essentially act as 'smart sensors' for monitoring fish populations in the ocean's eerily dim 'twilight zone.' Over the past 60 years, marine ...

As regulations tighten on the size of sport-caught halibut on charter boats in Alaska, sport fishermen are faced with a challenge of how to tell the size of a halibut without pulling it out of the ...

The DNA suspended in lake water can be used to effectively estimate the abundance of fish living in it, scientists have shown. The details of this new approach could revolutionize how fish stocks are ...

How long is that fish? The length is important to know, as many species of fish have a minimum length that can be legally kept. Some, like red drum, also have a maximum size that can be kept. Many ...

BELLA VISTA -- With a generator rumbling alongside the boat engine, workers dip their nets into the water to remove stunned bass, bluegill, redear and other fish from a Bella Vista lake. Bella Vista ...

(Phys.org)—"The sea is a big place. Most fish are small. So it stands to reason that it is difficult to work out with any degree of accuracy just how many fish live in the sea. One way is to measure ...

Q: Is there a "gray area" or courtesy consideration given when measuring fish on a lake or river with special regulations? Could I really get a ticket for a fish that is one-eighth of an inch too ...

Cross-sectional validation study using an independent biomarker of fish consumption. Participants completed the questionnaire and provided a fasting blood sample for erythrocyte membrane omega-3 fatty ...

Over the past 60 years, marine biologists at UC Santa Cruz have monitored the behavior of northern elephant seals that journey to nearby Año Nuevo Natural Reserve. With the seals gathering on the ...