Küstenbiologie - Coastal Biology

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Ahoi! - this is the frontpage of Coastal Biology from Northern Germany

Teredo im Herbst

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Im September wurden noch einige Nachzügler registriert. Durch die anhaltend hohen (na ja, relativ hoch mit > 15 Grad) Wassertemperaturen hat Teredo noch die Möglichkeit, Larven zu produzieren. Viel schlimmer ist jedoch, dass die im August festgesetzten Bohrmuscheln diesen Herbst noch sehr lange werden bohren können, bevor sie von Temperaturen unter 5 - 10 Grad verlangsamt werden. Das bedeutet, dass jetzt schon Schäden auftreten können, wie sie sonst erst im Frühjahr messbar sind. Auch sind größere und kräftigere Bohr"Würmer" besser geeignet, den kalten Winter zu überstehen und im nächsten Sommer viele viele Nachkommen zu produzieren ...

Last Updated on Wednesday, 19 October 2011 11:49
 

settlement in August

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This August the settlement picked up quite a bit, to about 1.700 larvae/square meter. Compared to "bad" years with none to a few hundred larvae that is a lot, but nothing to "good" years with mass invasions of tens of thousands of Individuals.

We also saw a typical sequence of settlers apart from Teredo. Initially there were lots of balanids and a few protozoans and Ciona intestinalis. From mid-August we get lots of Mytilus babies. Even though some of the darker panels get almost 100 % cover of balanids, they soon are overgrown and suffocated by mussels.

Last Updated on Wednesday, 07 September 2011 16:41
 

Open Season 2011

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On my first panel, exposed from 01. to 27. of July, there werde 24 little teredoes. Obviously they had just settled and the settlement has just started. Due to low water temperatures one should not expect too many of the critters this summer, but teredo has surprised me before ...

Last Updated on Friday, 29 July 2011 08:45
 

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Who´s knocking?
 

newsflash!

On my first panel, exposed from 01. to 27. of July, there werde 24 little teredoes. Obviously they had just settled and the settlement has just started. Due to low water temperatures one should not expect too many of the critters this summer, but teredo has surprised me before ...