Hydro - Bios Biological Bottom Dredge

Robust device to excavate material from river or lake bottom

The Biological Bottom Dredge is a compact sampler to be towed along the bottom for collection of biological or mineral specimen. The dredge has a rugged rectangular stainless steel frame with a size of 50 x 20 cm. It is delivered with a pair of folding V-Arms and a bridle for connection to the towing line. A sturdy net bag of 6 mm mesh size, protected by a heavy canvas cover, is attached to the rear of the frame. The net bag is 60 cm long. The weight of the complete dredge comes to approximately 9.5 kg.

Hydro - Bios Bongo Net

Oceanographic double-ring net for horizontal or oblique tows

TECHNICAL DATA
Material	Net rings and coupling: Stainless steel Net bag: MOnyl (PA) Net bucket: PVC
Dimensions	250 cm x 135 cm x 60 cm  (l x w x h)
Weight	20 kg
Mouth opening	2 x 60 cm dia./2 x 0.2827m²
Mesh size	500 microns (or select mesh size for each bag independently between 100 and 1000 mircons)

ORDERING INFORMATION
Products
438 750	1. Double Net ring of stainless steel,  with Nylon webbings and zip fasteners  2. Two Net Parts (one per ring) with zip fastener,  conical, upper diameter 60 cm, lower diameter 11 cm,  length 250 cm, 500 micron (or as per choice between  100 and 1000 microns) 3. Two Plastic Net Buckets, each consisting of: a) Fixing Ring with over centre fasteners for attaching to the end of a net b) PVC-Net Bucket with side window, covered with sieve gauze 4. Distance Rod for Plastic Net Buckets
Accessories
438 416	V-Fin Depressor with steel rope and shackle, weight 22 kg
438 110	Mechanical Flow Meter for counting the  amount of water passing through the net
438 753	Net Part for Bongo Net (one single net) with bolt rope for Soft Net Bucket 500 microns (or as per choice between 100 and 1000 microns)
438 935	Mounting ring for Soft Net Bucket
438 930	Soft Net Bucket with bolt rope 500 microns (or as per choice between 100 and 1000 microns)
Spare Parts
438 752	Spare Net Part (one single net), 500 microns (or as per choice between 100 and 1000 microns)
438 150	Spare Plastic Net Bucket, consisting of: a) Fixing Ring with over centre fasteners  for attaching to the end of a net b) PVC-Net Bucket with side window,  covered with sieve gauze

Hydro -Bios Ring Trawl (CalCOFI) Net

Oceanographic net for horizontal or oblique tows in CalCOFI design

TECHNICAL DATA
Material	Net ring: Stainless steel Net bag: MOnyl (PA) Net bucket: PVC
Dimensions	100 cm x 400 cm (dia. x l)
Weight	19 kg
Mouth opening	100 cm dia. / 0.7854 m²
Mesh size	500 microns (or as per choice between 100 and 1000 mircons)

ORDERING INFORMATION
Products
438 700	Ring Trawl (CalCOFI) - Net 1. Bridle with thimble and shackles  2. Net ring of stainless steel, with Nylon  webbing and zip fastener  3. Net Part consisting of: a) Net Part with zip fastener, cylindrical,  diameter 1m, length 1 m, 500 microns  (or as per choice between 100 and 1000 microns) b) Net Part, conical, upper diameter 1 m,  lower diameter 11 cm, length 3 m, 500 microns  (or as per choice between 100 and 1000 microns) 4. Plastic Net Bucket, consisting of: a) Fixing Ring with over centre fasteners for attaching to the end of a net b) PVC-Net Bucket with side window,  covered with sieve gauze
Accessories
438 416	V-Fin Depressor with steel rope and shackle, weight 22 kg
438 110	Mechanical Flow Meter for counting the amount of water passing through the net
438 703	Net Part for Ring Trawl (CalCOFI) Net with bolt rope for Soft Net Bucket
438 935	Mounting ring for Soft Net Bucket
438 930	Soft Net Bucket with bolt rope
Spare Parts
438 702	Spare Net Part for Ring Trawl (CalCOFI) Net,  500 microns (or as per choice between 100 and 1000 mircons)
438 955	Spare Plastic Net Bucket, consisting of: a) Fixing Ring with over centre fasteners for attaching to the end of a net b) PVC-Net Bucket with side window,  covered with sieve gauze

Hydro -Bios High Speed Plankton Collector ”Nackthai”

Gulf V sampler, modified for higher sampling efficiency

TECHNICAL DATA
Material	Tube frame: Stainless steel Net bag: MOnyl (PA) Net bucket: PVC
Dimensions	275 cm x 100 cm x 70cm  (l x w x h)
Weight	70 kg
Mouth opening	20 cm dia./0.03142 m²
Mesh size	405 microns (or as per choice between 100 and 1000 mircons)

ORDERING INFORMATION
Products
438 410	High Speed Plankton Collector ”Nackthai”  1. Metal frame - sides to net open  2. Net Part consisting of: a) Ring Bond of Nylon webbing with zip fastener  b) Net Bag with zip fastener, conical,  front opening 38 cm,  back opening 11 cm, length 150 cm,  of synthetic material, mesh size 405 micron 3. Plastic Net Bucket, consisting of: a Fixing Ring with over centre fasteners  for attaching to the net end b) PVC-Net Bucket with side window,  covered with sieve gauze  4. V-Fin Depressor with steel rope  and shackle, weight 22 kg
Accessories
438 110	Mechanical Flow Meter
Spare Parts
438 412	Spare Net Bag for High Speed Plankton Collector ”Nackthai”,  405 microns (or as per choice between 100 and 1000 microns)
438 955/B	PVC-Net Bucket with side window, covered with sieve gauze 405 microns (or as per choice between 100 and 1000 mircons)
440 416	V-Fin Depressor with steel rope  and shackle, weight 22 kg

Hydro - Bios IKMT Isaacs-Kidd Midwater Trawl Net

Oceanographic midwater trawl for horizontal or oblique tows

TECHNICAL DATA
Material	Depressor and spreader bar: Aluminium Net bag: MOnyl (PA) Covering net: Nylon,  40 mm mesh size
Dimensions of net bag	10 m x 2 m x 2.6 m (l x w x h)
Dimensions of depressor:	0.65 m x 3 m x 0.8 m (l x w x h)
Weight	approx. 120 kg
Mouth opening	7 m²
Mesh size	500 microns (or as per choice between 500 and 1000 microns).

ORDERING INFORMATION
Products
438 250	IKMT Isaacs-Kidd Midwater Trawl Net,  mesh size standard: 500 microns  (or as per choice between 500 and 1000 microns)
Spare Parts
438 252	Spare Net Part of MOnly,  500 micron mesh size  (or as per choice between 500 and 1000 microns)
438 255	Spare Covering Net of 40 mm mesh size

Hydro - Bios Neuston Net acc. to David/Hempel Model 300

Plankton net for sampling surface and sub-surface fauna

TECHNICAL DATA
Material	Catamaran, spreader bars and double net frame: aluminium Net bags: MOnyl (PA) Net bucket: PVC
Dimensions	300 cm x 220 cm x 60 cm (l x w x h) Immersion depth of swimmer: approx. 30 cm
Weight	95 kg
Mouth opening of net bags	2 x 30 x 15 cm / 2 x 0.045 m²
Length of net bag	400 cm
End dia. of net bag	11 cm
Mesh size	300 microns (or as per choice between 100 and 500 mircons)

ORDERING INFORMATION
Products
438 210	Neuston Net acc. to David/Hempel Model 300 1. Catamaran Swimmer body of aluminum with adjustable holding rack for the net parts 2. Bridle for selectable use from port side, starboard or stern 3. Double Net Frame for surface and sub-surface net with Nylon webbings and zip fasteners 4. Surface Net Bag with zip fastener, 300 microns 5. Sub-surface Net Bag with zip fastener, 300 microns 6. Two Plastic Net Buckets, consisting of: a) Fixing Ring with over centre fasteners for attaching to the end of a net b) PVC-Net Bucket with side window, covered with sieve gauze
Spare Parts
438 212	Spare Net Bag for Neuston Net, 300 microns (or as per choice between 100 and 500 mircons)
438 955	Plastic Net Bucket, consisting of: a) Fixing Ring with over centre fasteners for attaching to the end of a net b) PVC-Net Bucket with side window, covered with sieve gauze 300 microns (or as per choice between 100 and 500 mircons)

Hydro -Bios Nets for Microplastic Sampling

Different nets adapted to various environmental conditions

FEATURES

• Two different floating devices available
• Large variety of mesh sizes
• Light weight but robust soft net buckets
• High-speed version (up to 8 knots) available

TECHNICAL DATA
Net bag	70 x 40 x 260 cm (w x h x l)
Material	Neuston Net: Anodized aluminium Microplastics Net: Stainless steel
Dimensions	Neuston Net katamaran: 220 x 60 x 300 cm (w x h x l) Microplastics Net frame: 115 x 45 x 20 cm
Weight	Neuston Net: 100 kg Microplastics Net: 12 kg

ORDERING INFORMATION
Products
438 211	Neuston Net for microplastic sampling Katamaran swimmer body of aluminium, length 300 cm With adjustable holding rack for one single net Mouth opening 70x40cm, length of net bag 260cm Mesh size 300 microns (or to be specified) Soft net bucket with boltrope and fixing ring
438 214	Microplastics Net with two lifting bodies Mouth opening 70x40cm, length of net bag 260cm Mesh size 300 microns (or to be specified) Soft net bucket with boltrope and fixing ring
438 213	Net Part for both Microplastic nets: 438 211 and 438 214 Mouth opening 70x40cm, length of net bag 260cm Mesh size 300 microns (or to be specified)

Hydro - Bios Indian Ocean Standard Net

Oceanographic non-opening/non-closing net for vertical operations

TECHNICAL DATA
Material	Net ring and net bucket frame: Stainless steel  Net bag: Monyl (PA)  Net bucket: PVC
Dimensions	113 cm x 500 cm (dia. x l)
Weight	35 kg
Mouth opening	113 cm dia. /1 m²
Mesh size	335 microns (or as per choice between 100 and 1000 mircons)

ORDERING INFORMATION
Products
438 815	Indian Ocean Standard Net 1. Bridle of Nylon rope with  thimble and shackle 2. Net ring of stainless steel with  loops for bridle and bucket ropes,  with Nylon webbing and zip fastener. 3. Net Part, consisting of: a) Net part, cylindrical,  length 1,7 m, 335 microns b) Net part, conical,  length 3 m, 335 microns 4. Vertical Net Bucket consisting of: a) Fixing Ring with over centre fasteners b) PVC Net Bucket with side windows  covered with sieve gauze c) Net Bucket Frame for vertical operation
Accessories
438 115	Mechanical Flow Meter with back-run  stop for counting the amount of  water passing through the net
Spare Parts
438 517	Spare Net Part,  335 microns (or as per choice between 100 and 1000 mircons)
438 975	Spare Vertical Net Bucket,  complete with net bucket frame  335 microns (or as per choice between 100 and 1000 mircons)