Difference between revisions of "Monika Bright's Lab"

Revision as of 18:12, 23 February 2020

en:

University of Vienna

Piran

Emissions in social networks

The wooden cubes were covered with bryozoans ...

and diverse sea squirts and anemone

Work in and out of the water in front of the Marine Biology Institute in Piran

This is the BORG in about 4 m depth in front of the institute. Also here we recovered three wooden and one plastic cube.

Another successful recovery

collection of cubes, water and sediment

Wood eating creatures Wood gets degraded by bacteria and fungi but also by animals. While shipworms live in symbiosis with wood degrading, nitrogen fixing bacteria, some isopods and amphipods can digest wood without the help of symbionts. After sampling the wooden cubes we took pictures of all surfaces. The surface of this wooden plate was covered by hydozoans and algae. Only from the inside the occurrence of many shipworms became apparent.

We found all kinds of size classes ranging from less than a few mm to almost 10 cm. This indicates several colonization events, known in Teredo navalis, the species we found here.

All wooden cubes were heavily infested with the amphipod Chelura terebrans (orange) but we detected only a few specimens of Limnoria quadripunctata (white with 4 spots at the rear end).

(Video to be included here)