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ZC-005 · Ise-Shima

Frame-type Lightweight Dredge (SK-IV)

Sampling gear — benthic dredge

A registered utility-model dredge (Japan Utility Model No. 3224300) with a frame structure for lightweight, balanced sampling on any substrate. Supplied to universities and research institutions — and contributed to the first Nagoya-area sighting of a freshwater mussel (Unionidae) in roughly 30 years.

Frame-type Lightweight Dredge (SK-IV)

Currently paused

Reference prices: hand-thrown ¥40,000 / foldable hand-thrown ¥45,000 / small-vessel-towed ¥70,000 / collection bag from ¥5,000 (each + shipping). Currently paused — please inquire.

Exhibition

Exhibited at the Osaka Museum of Natural History special exhibition “Hooked on Shells,” in the section introducing researchers’ collection and survey tools from the Edo period to the present. Exhibition info ↗

A frame-only structure, with no top or bottom plate, keeps the dredge lightweight while maintaining balance (Japan Utility Model No. 3224300).

Features

  • Frame-only construction keeps it light; the side frames fold inside for transport
  • A detachable ballast weight at the front, adjustable to the substrate
  • Covers a range from a hand-thrown small size to a vessel-towed medium size
  • Usable on both hard and soft substrates
  • Collection bags swap easily with zip ties

Track record

Supplied to universities and research institutions; a survey using this dredge contributed to the first sighting of a freshwater mussel (Unionidae) in the Nagoya area in roughly 30 years.

Currently paused — please inquire about resuming sales.

Inquiries are always welcome.

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