For those use to seeing monstrous pelagic trawl gear, 1 ton pelagic doors and massive winches . . . . forget it! The Aluette Midwater and Hendricksson Pelagic doors are here to give you the relief you asked for.
No longer does the researcher need to bother with commercial type gear to take samples. I.N.S. has designed and produced a fast, light, mobile and efficient midwater solution. The Aluette Midwater , .85M doors, bridles and weight plates all fit on a 40" x 48" pallet and weighs in at under 125 kg. COMPLETELY RIGGED!
Catch of the Day with the Aluette
Year-0 Arctic Cod inside the Aluette
One of the biggest Urban (Trawl) Legends is that you have to have small mesh to catch small fish.
IF your Net Geometry is correct and your water flow is stable ( NO Internal Pressure Waves)....a 35mm mesh like shown here can and will take a 15mm fish like this Year-0 Arctic Cod.
* All photos courtesy of NOAA*
A complete Aluette midwater set up
The Aluette comes built in a variety of designs each fabricated to do several things all with the same net. It can go deep, shallow, turn quicker and dive faster than any other Research Midwater gear we have seen. It samples in the ocean, river systems, reservoirs and lakes.....it takes fish from .5mm through .75 Meter in length.
It can be worked from an 25' skiff or a 150 Meter vessel.
NO! It is not meant for taking commercial loads of adult anything.....it is meant to takes samples of Y.o.Y through 2-3 year class fish.
Build in UHDPE ( Dyneema™) , HDPE or a combination of both, the Aluette is an easy trawl to work with on limited back deck space. . . . Gone are the days where you have to suffer with that heavy ol' wet sock of a nylon trawl.
NOAA crew, Lake Michigan
When we speak of small scale midwater doors, there are a lot of designs to choose from.
Some are very simple and cheap, others are more dynamic. I.N.S. prefers the Hendricksson Dihedral door ( Icelandic design) as first choice and a similar door from an American manufacturer as a second choice. BOTH work very well with our Aluette trawl. However, the doors shown here . . . DO NOT!
Low Radial door
China "V" Door
Hendricksson Dihedral Door
Which of these midwater doors has the most power to spread?
Which of these midwater doors offers the most settings and adjustments?
Which of these midwater doors do YOU want on YOUR Pelagic sampling trip?
The Aluette trawl was designed for use by small - midsized boats, with limited winch and hp capacity. This gear is scaled down to allow almost any researcher with access to a 25' skiff or larger, to take midwater samples in an easy and efficient way.
Place your order early. . . both the net and the doors take time to build correctly.
Email us for a copy of our ELECTRONIC CATALOG and see the different prices and designs that are best suited to YOUR project or work.
INNOVATIVE NET SYSTEMS * PO BOX 255- 111 ZOTHIQUE RD.* MILTON, LOUISIANA, 70558