| * Designed for deep oblique tows where up to three replicate nets can be sequentially operated by a double release mechanism |  |
| Unit Includes: - galvanized and stainless steel opening and closing frame; mouth opening 0.25, 1.0, or 2.0 m - three plankton nets; available in standard Nitex(r) sizes - three, 2-piece PVC collecting buckets lined with specified mesh - cast bronze and stainless steel double release mechanism with two 1.0 kg messengers - lead weight ballast |
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| General Procedure: - nets # 2 & 3 are secured in the closed position to upper frame member by lanyards that snap into the double release mechanism - weighted messenger # 1 actuates the opening of plankton net # 2 and closure of plankton net # 1 - weighted messenger # 2 actuates the opening of plankton net # 3 and closure of plankton net # 2 |
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| Options: - custom sizes and modifications -single and double net configurations -extra buckets, nets, and messengers |
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MULTIPLE NET MID-WATER (TUCKER) TRAWL: 1.0 m x 1.4 m
galvanized and stainless steel construction, lower pipe is treaded and
capped at both ends where lead ballast bars (approx 60 kg., not included)
can be inserted, three plankton nets 1.0 m x 1.4 m x 4.0 m x 333 micron
with heavy reinforced net cowling positions nets at 45 degree angle during
fishing which results in an effective fishing area of 1.0 square meter),
cast bronze double release mechanism and two 1.0 kg. split messengers,
three 2-pc PVC cod end assemblies, spares kit, complete: Approx Cost. $3,800
Notes: Net #1 open upon deployment: Net #3 open upon recovery. Very reliable and cost effective sampling as compared to “Mock-Ness” and Bongo net systems. No obstruction of the sampling area during deployment. Plankton nets are available in a variety of Nitex nylon mesh sizes (< 1000 microns) and knotless nylon meshes (< 10 cm). |
© Aquatic Research Instruments
