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Equipment and Services for Aquatic Research · Plankton Nets · Water Samplers · Plankton Samplers · Sediment Corers · Laboratory Equipment

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Simple Plankton Nets
Closing Plankton Nets
Bongo Plankton Nets
Multi-Net (Tucker) Trawl
Student Plankton Nets
Stream Sampling Nets


Horizontal Water Samplers
Vertical Water Samplers
Student Water Samplers
Secchi Disks
Limnology Field Kits


Universal Percussion Corer
Gravity Corer
Russian Peat Borer
Piston Interface Corer
Large Bore Sediment Sampler
Pore-Water Sampling
Extension Rods and Percussion
Core Extruding Apparatus
Discrete Point Piston Corer


Plankton Traps
Haney Grazing Chambers
Light Traps
Limnocorrals, Microcosms, Enclosures


Utermoehl (Phytoplankton) Sedimentation Chambers
Folsom Plankton Sample Splitter
Motoda Plankton Sample Splitter
Zooplankton Counting Trays


Light Traps

Larval Fish and Aquatic Macro Invertebrate & Larval Fish Light Traps

  • Passive sampling of a broad range of planktonic organisms
  • Compact, rugged design is suitable for lotic, lentic and hatchery environments
  • Modified design includes an alternative light source, collection assembly and floatation device

light trap


Quadrafoil Type Larval Fish Light Traps Acc. to Secor

  • Cloverleaf Shaped Array, 30 cm (diameter) x cm x 25 cm (Height) with four entry slits x 5 (+/- 1.5) mm wide.
  • Robust design, clear polycarbonate construction w/fixed slit width x 5 (+/- 1.5) mm wide (custom split widths available)
  • Collection Basin/Seive x 250 micron (or specify mesh size)
  • Top plate closed cell flotation block
  • Central light tube 20 mm diameter x 25 cm long with cap
  • Rigging hardware, one chemical light stick

Commonly Used Light Sources (Light Source Not Included):

  • Chemical Light Sticks
  • Squid Fishing Jigs
  • Waterproof flashlights
  • LED pool lights


Secor, D.H., J. Hansbarger, 1992. Modification of the quatrefoil light trap for use in hatchery ponds. Prog. Fish. Cult, 54:3, pp 202-205. Floyd, K.B., W.H. Courtenay, and R. D. Hoyt. 1984. A new larval fish trap: the quatrefoil trap. Prog. Fish Cult., 46:216-219. Ulrich, G.W., 1986. Construction of a compact submersible aquatic light trap. Pan-Pac. Entomol. 52:2, pp 144-149. Faber, D.J., 1990. A light trap to sample littoral and limnetic regions of lakes. Verh. Int. Ver. Theor. Limnol. 21:2.


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