|
 The rain was dripping on us as we embarked on our most difficult task of staring at stuff on a rubber skirt attached to the dock on our beautiful campus. Being generally good-natured, we pressed on regardless.
Purpose of the field lab: To observe the unique biodiversity that can be found on a rubber skirt.
Procedure: We looked at the plant and animal life present, learning their names and functions within our system, and measured both the air and water temperatures within that system. We decided the boundaries of our system, i.e. 25 cm deep, one metre long, and one metre from the dock. This being said, we kept in mind that the surrounding area directly affects our system.
Structure-biotic-species list
tube worms, pink sponge, yellow sponge, limpets, mussels, ulva, school of anchovies, jelly fish, obelia, phytoplankton. The amount of plankton was such that one could see 3.25 metres towards the ocean floor.
The system of the community of organisations:
Producers:
Ulva, phytoplankton, diatoms
Primary consumers:
anchovies, limpets,
Secondary consumers:
salmon, seagulls ( In general seagulls eat salmon, which makes them tertiary consumers too. )
Abiotic factors:
Temperature: 10.1 C ; Salinity: 27 ppt (parts per thousand)
The salinity rate of the water in Pedder Bay is lower than the one of the Pacific Ocean ( 36 ppt ) As Pedder Bay is in an estuary ( fresh and sea water ).Wave action: There were 5 waves ( about 30cm high ), when a boat passed. We noticed that there were less plankton when we made our measure with the Secchi disc.
|
