Bridging Divides by Stephan Gollasch

By Stephan Gollasch

Maritime canals dissolve average obstacles to the dispersal of marine organisms, therefore offering them with many possibilities for typical dispersal, in addition to for shipping-mediated shipping. The creation of alien species proved to be essentially the most profound and destructive anthropogenic deeds - related to either ecological and monetary bills. This publication is the 1st to match the affects of the 3 vital maritime canals Kiel, Panama, Suez as invasion hall for alien biota. the 3 vary of their geographic destinations, hydrological regimes, and of their permeability to alien biota.

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By Stephan Gollasch

Maritime canals dissolve average obstacles to the dispersal of marine organisms, therefore offering them with many possibilities for typical dispersal, in addition to for shipping-mediated shipping. The creation of alien species proved to be essentially the most profound and destructive anthropogenic deeds - related to either ecological and monetary bills. This publication is the 1st to match the affects of the 3 vital maritime canals Kiel, Panama, Suez as invasion hall for alien biota. the 3 vary of their geographic destinations, hydrological regimes, and of their permeability to alien biota.

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Growth in the outer Fjord and the Kiel Canal growth was similar only during summer. However, during fall mussels in the canal have low tissue content and lower shell weight than at Baltic test sites. Also during spring growth was retarded, probably due to abundant organic detritus in the water column. The seston load follows a gradient with increasing intensity from east to west along the canal (Krumm & Rheinheimer 1963). Boje (1965) who studied the eastern part of the canal near the locks of Holtenau (Kiel) suggested bacteria as an important food source for mussels, confirming work by Rheinheimer.

Htm May 27th 2004). The biggest ship ever passed through the canal was the German naval vessel Bismarck. She transited on March 9th 1941. 9 m – exceeding today’s vessel size limits for passage (see above). org July 16th 2004). 000 0 0 95 00 05 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 00 18 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 20 Year Fig. 26. e. merchant ships, navy vessels and others, passing annually through the Kiel Canal since 1895 (canal opening) to 2004.

In contrast with the phytoplankton species Coscinodiscus wailesii that colonized the canal from the Elbe Estuary. 4 Invertebrates Brackish water invertebrates colonised the canal soon after its opening. Two months after the opening, at a time when the Holtenau locks were constantly open, Mytilus edulis was found up to canal km 90. Other common taxa in the Kiel Fjord, such as Aurelia aurita, Cyanea capillata and Mysis vulgaris, were also frequently reported at the same time (Arndt 1931/32). Shortly after its first record in the canal, Aurelia aurita was found in Brunsbüttel, making it the first “immigrant” to appear along the entire canal length (Dechow 1920).

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