Small Aquarium Two
- After regaining colour at the beginning of the month, the Goniopora coral colony now continues to be very pale, and appears to be colonised by encrusting polychaetes (worms).
- Mini coral frame – resident crabs detached two fragments, so these were promptly reattached. There are four dead/missing fragments, but the older fragments continue to look healthy and encrust steadily.
- Clark’s anemonefish (Amphiprion clarkia) breeding pair – no eggs were observed this month, despite characteristic “cleaning” behaviour often seen before laying.
Linckia multifora sea stars
- SS3 – healthy, but no size increases this month.
- SS4 – scarred, due to from predation from resident crabs.
- Rotifers – production continues, and we are maintaining good quality and a steady population size.
- Artemia – production increased to 4g/day, to provide feed for our jellyfish, polyps, basslets, pipefish, and the main aquarium.
- Algae – production remains consistent and steady.
We have a new Lab-made net (photo), to gain practise and refine methodology before the remainder of our equipment arrives (nets and pipettes). Thanks to our resort colleagues for all their invaluable help, including Engineering (custom metal ring) and Laundry (stitching).
During collection, we will experiment with different duration/speed/distance, to ensure a large enough sample without bursting the fine netting (150µm). We will practice using our Lab-made motodo splitter, and try sub-sampling with spring-loaded pipettes. We will also be practising: separation, rinsing and dehydration, storage (in formalin), and most importantly, actually identifying the zooplankton samples.
Many thanks to our overseas mentors at: MBA [UK] (Dave Conway), and CSIRO [AUS] (Dr Anthony Richardson and Frank Coman).