Search results
Results from the WOW.Com Content Network
Teredo navalis, commonly called the naval shipworm or turu, [2] is a species of saltwater clam, a marine bivalve mollusc in the family Teredinidae. This species is the type species of the genus Teredo .
Shipworm species comprise several genera, of which Teredo is the most commonly mentioned. The best known species is Teredo navalis. Historically, Teredo concentrations in the Caribbean Sea have been substantially higher than in most other salt water bodies. Genera within the family Teridinidae include: [14] Bactronophorus Tapparone-Canefri, 1877
Zopoteredo. Teredo is a genus of highly modified saltwater clams which bore in wood and live within the tunnels they create. They are commonly known as " shipworms;" however, they are not worms, but marine bivalve molluscs (phylum Mollusca) in the taxonomic family Teredinidae. The type species is Teredo navalis. [1]
Much damage was done to these wood constructions with the arrival of the shipworm (Teredo navalis), a bivalve thought to have been brought to the Netherlands by VOC trading ships, that ate its way through Dutch sea defenses around 1730. The change was made from wood to using stone for reinforcement.
Salt water provides for greater organic activity than freshwater, and in particular, the shipworm, teredo navalis, lives only in salt water, so some of the best preservation in the absence of sediments has been found in the cold, dark waters of the Great Lakes in North America and in the (low salinity) Baltic Sea (where the Vasa was preserved ...
A small steam engine, known as the "Sandfly", was used to shunt rail stock the length of the jetty. The jetty was closed in 1897 owing to the danger of collapse. The cyclone of 1897 and being eaten away by teredo navalis, a salt water clam also known as the naval shipworm, eventually caused the jetty to collapse that year. [4]
The comparatively cold and brackish waters of the Baltic Sea are free from the "shipworm" Teredo navalis, which rapidly destroys submerged wood in most other seas. This means that the Baltic waters have an exceptional ability to conserve wrecks for hundreds of years, and has left the wooden construction of the Dalarö wreck largely intact.
In the early 1950s, amateur archaeologist Anders Franzén considered the possibility of recovering wrecks from the cold brackish waters of the Baltic because, he reasoned, they were free from the shipworm Teredo navalis, which usually destroys submerged wood rapidly in warmer, saltier