After a weekend in picturesque Esbjerg, the third week of the BTS has started. For part of our team this is the second and last week on board. Currently we are sampling closer to the Danish and German coastline. There are more bigger fish in our catches which makes it more fun to go through our catches. The crew of the vessel is a great help in sorting through catches and benthos, which makes our work a lot easier.
|de vis gesorteerd per soort op de lopende band, klaar om gemeten en gewogen te worden//|
fish sorted by species on the conveyor belt, ready to be measured and weighed
|overige soorten gesorteerd, klaar om geteld en gewogen te worden//|
other species sorted, ready to be counted and weighed
|touw met aangegroeide anemonen//|
rope with attached anemones
As promised in the previous blog, we will discuss the collection of garbage and plastics in this blog. We separate all human made items from the catches. We encounter a wide range of items such as fisheries materials, lamp holders, soda cans, glass, legs of trousers and many other things. Every item is categorized based on the material it is made off (plastic, rubber, glass, wood), measured, identified (if possible) and weighted. Last but not least, we determine animal growth on each item. Frequently, we find organisms such as sponges, ascidians, anemones and bryozoans.
|afval van één van de trekken. rechts een broekspijp//|
litter from one of the catches. on the right side a leg of trousers
Zo nu en dan komen er uit een object, soms wel tientallen, porceleinkrabbetjes (Pisidia longicornis) gelopen. Deze krabbetjes blijven erg klein en hebben buiten proportie grote schaartjes. Daarnaast zie je ze in allerlei groottes en kleuren.
Every now and then, small porcelain crabs (Pisidia longicornis) emerge from an item, sometimes in tens at the same time. These small crabs, which occur in a variety of colours and sizes, have disproportionally large scissor arms.