6 June 2026
Kortschrift 2 - Purperkogelzeehaas (Akera bullata)
Simply put 2 - Common bubblesnail (Akera bullata)
I went looking for the Common bubble snail (Akera bullata) at the Bergse Diepsluis. I am anything but a good underwater sniffer dog, but with the second attempt and good directions (thanks) I found nine and many more egg strings from the animal. I collected two of them to take photo’s of at home. It is a special animal to observe. It looks a bit bulky, but it can vary its shape quite a bit. And then that shell that 'hangs' on it. Click here for photo’s at MicksMarineLife.
It crawls incredibly slowly and doesn't seem to attach itself to the surface like 'normal' nudibranchs. In my aquarium they did not hide in the sand. They did lay a few egg strands, more about that in a next post. They have now returned to their original location.
2 June 2026
Kortschrift 1 - Plankton bij nachtduik
Gisteren een nachtduik gemaakt bij de Zeelandbrug. Neem een sterke duiklamp mee en voor de lamp hangt opeens een wolk van planktonformaat fauna: heel veel Atlantische zeekreeftlarven (<100; zie foto maar niet van gisteren/vannacht), Veranderlijke steurgarnalen (<25), mini pijlinktvisjes (<50) en veel epitoke zagers (<25). Op de bodem nog een zeldzame soort Nikagarnaal en een opdringerige Zeekat, die ik zelfs aan kon raken en geen krimp gaf. Prachtig allemaal. Wel verontrustend: in 12 dagen is de watertemperatuur gestegen van 13 naar 18º!
Simply put 1 - Plankton at night dive
Yesterday I did a night dive at the Zeeland Bridge. Bring a strong dive light and suddenly a cloud of plankton-sized fauna hangs in front of the light: lots of Common lobster larvae (<100; see photo, but not from yesterday/last night), Chameleon prawn (<25), mini squid (<50), and many epitoke ragworms (<25). On the bottom, there was also a rare species of Nika shrimp and an intrusive cuttlefish, which I could even touch and didn't flinch. All beautiful. However, it is worrying: in 12 days, the water temperature has risen from 13 to 18º!

