Real-time shrimp monitoring with Notus Echo

Real-time shrimp monitoring with Notus Echo The combined sensor and Echo display shows the gear configuration and the catch rate of shrimp during a tow

Notus has developed what it describes as the first shrimp detector for trawl gears, and reports from the first users to fit the system to shrimp trawls have been highly positive.

​“It’s awesome!” said Jimmy Burns, who skippers the Galway Bay. “Worked right out of the box. I can see if I’m catching 500lbs/hr or 2000lbs/hr.”

“Conventional sounders cannot detect shrimp as, unlike fish, they have no swim bladder,” said Francis Parrott at Notus. “The main question for any shrimp trawler skipper is, where on my tow am I catching my shrimp?”

The Notus Echo consists of a sensor and a microphone mounted on a shrimp trawl’s sorting grid. The microphone picks up the sound of shrimp hitting the grid through the tow, registering the increase or decrease in shrimp volume, and transmitting the data back to the catching vessel to be picked up by a towed or hull-mounted hydrophone.

The information is displayed on a control module in the wheelhouse, providing a real-time indication of catching efficiency, while also monitoring the grid angle and water temperature.

“Seeing where I am catching shrimp changed our fishing operation,” commented Ben Downs of the Pacific Dove. “We would not want to fish without it.”

“The results have been outstanding in increasing catches. A skipper can detect exactly where he is catching shrimp on a 3-4 hour tow.  He can turn around and hit the same hot spot a second time,” Francis Parrott said, commenting that the Notus Echo can be supplied either as a standalone installation or as part of a set of trawl sensors.

LATEST PRESS RELEASES

A progressing cavity pump with EHEDG certification – is that really new?

The EHEDG (European Hygienic Engineering & Design Group) was founded in the last century at the end ... Read more

Economic and environmental advantages of the two-speed gearbox

Finnøy Gear & Propeller’s two- speed gearbox is used on vessels with large differences in power need... Read more

Leading specialist in design and manufacturing of gearboxes and propellers invests in CNC lathe for future product development

Norway- based Finnøy Gear & Propeller have recently invested in a new high- performance CNC lathe ma... Read more

MACDUFF SHIP DESIGN LOOKS FORWARD TO A BUSY 2019

Macduff Ship Design have over the past 10 years spent considerable time specialising in the design o... Read more

Kinarca participated in the construction of the most ecological, efficient freezing trawler.

Kinarca participated in the construction of the most ecological, efficient freezing trawler with gre... Read more

CORDEX ON A PERMANENT AND SUSTAINABLE GROWTH.

Cordex maintains a permanent stable growth on its CordexAqua segment – Ropes and Yarns for Fishing &... Read more

View all