Blog5: Seagrass Mapping in the South

Today Micah and I worked together again, and similar to the first field day we went out with James and mapped seagrass and the Tender, a very small boat. Today was a bit different though, on the first day we were in clear water, today we could not see a thing, which was daunting at times but also very exciting. As you can see on the map (use the link from previous blog posts) we were further south than day one and there is a lot more sediment in this region, we also had rain last night and during the day which also made the water more turbid.

During the day Micha and I would take turns diving down to the bottom to collect seagrass samples in water ranging from 1-4 meters. However we could not see the bottom, we would dive down with our arm outstretched in front of us and in good sections you could see the end of you arm, in other sections you couldn’t see that far. At times all you could see was darkness and you would be thinking, what’s going to be down here, sometimes it would be just mud, sometimes seagrass and other times it was so deep that we did not even reach the bottom.

It was another great day and most of the enjoyment came from creating transects, starting close to shore and working our way out, following the changes in species until we found the edge of the grass and the stat of the channel.

We were trying to complete 100 sites for the day and got to 74, we were on the way to our goal! Then Glaucus (the other boat) came along and asked if we wanted to so to snorkeling on a coral reef. Micha and myself were keen to reach 100 but the thought of actually seeing something underwater was too big of a pull and we left James and the Tender and headed off. We were glad that we did as the snorkeling was fantastic, we saw huge Sea Urchins, large numbers of fish, a Lion Fish and Wobbegong Sharks!