Phytoplankton Nets

Nylon tow nets for concentrating phytoplankton from ponds, raceways, sea cages and open water. Mesh apertures run from 20 to 250 microns, with stainless steel mouth rings of 150, 250 or 300 mm and a detachable cod end for clean sample recovery. Choose a mesh finer than the smallest cell you need to retain.

Categories: Fish Nets, Hatchery, Lab Equipment

Applications: Hatchery, Pond, Water & Wastewater Treatment

Product Information

Key Features

Nylon Nitex® mesh tow nets for concentrating phytoplankton from ponds, raceways, sea cages, lakes, rivers and open ocean
Stainless steel mouth ring with a three-point adjustable nylon bridle for a stable, square tow
Detachable cod end with lateral apertures so the concentrate drains off without losing the sample
Weight loops fitted, so the net can be ballasted to hold depth on vertical and horizontal tows
Cod end filters of 50 mm diameter in 20, 35, 53, 100 and 250 µm to match or refine the net mesh
Mouth ring diameters of 150, 250 and 300 mm, with net lengths of 0.45, 0.55 and 0.88 m
Sizing: pick the mesh aperture from the 20–250 µm range — the net retains everything coarser than the aperture, so specify a mesh finer than the smallest cell you need to keep, then match ring diameter to the volume you need to filter

Specifications

Parameter	Specification
Net mesh aperture	20–250 µm nylon (Nitex®) — retains particles coarser than the stated aperture
Cod end filter mesh	20 µm, 35 µm, 53 µm, 100 µm or 250 µm
Cod end filter diameter	50 mm, detachable lower section with lateral apertures
Mouth (ring) diameter	150 mm, 250 mm or 300 mm
Net length	0.45 m, 0.55 m or 0.88 m
Ring material	Stainless steel
Bridle	Three-point adjustable nylon rope harness
Ballast	Loops provided for adding weights
Tow method	Vertical or horizontal towing

Frequently Asked Questions

Which micron mesh do I need?

Pick an aperture finer than the smallest cell you need to retain — the net keeps everything coarser than the mesh, and apertures run from 20 to 250 µm.

What mouth diameters and net lengths are available?

Stainless steel rings of 150 mm, 250 mm and 300 mm, with net lengths of 0.45 m, 0.55 m and 0.88 m.

Does the cod end filter have to match the net mesh?

No — cod ends are 50 mm diameter and come in 20, 35, 53, 100 and 250 µm, so they can match the net or run finer.

Can the nets be towed horizontally?

Yes, they suit vertical and horizontal tows, and weight loops are fitted so the net can be ballasted to hold depth.

What are the nets made from?

Heavy-duty Nitex® nylon mesh with a stainless steel mouth ring and a three-point nylon rope bridle.

How is the sample recovered?

The lower cod end section detaches and has lateral apertures, so water drains off and the concentrate is decanted.

Where are these nets used?

Aquaculture ponds, raceways and sea cages, plus lakes, rivers and oceans, and water quality monitoring in treatment systems.

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Phytoplankton Nets

Product Information

Key Features

Specifications

Frequently Asked Questions

Spare Parts & Consumables

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