BENTHOS (EKOLOGI PERAIRAN)

Summary

In this educational video, Muhammad Rozi from the Biology program at UIN Ar-Raniry presents a practical session on aquatic ecology, specifically benthos sampling. He outlines the tools required, including a PVC pipe, small shovel, sieve, and sample bottles, as well as the procedure for collecting and preserving benthic organisms from a river in Aceh Besar. The session emphasizes safety and proper documentation, offering a comprehensive guide for students to conduct fieldwork in aquatic ecology, with a friendly and encouraging conclusion.

Takeaways

• 😀 The speaker introduces themselves as Muhammad Rozi from the Biology program at UIN Ar-Raniry, Faculty of Science and Technology.
• 😀 The lecture is part of an online practical session for the 'Aquatic Ecology' course, conducted during the pandemic.
• 😀 The focus of the practical session is on the collection of benthic samples from a river in Samahani, Aceh Besar.
• 😀 The river in Samahani is fed by water from Mount Samahani and has a substrate composed of sand and large rocks.
• 😀 The necessary tools for collecting benthos include a 1x1 meter PVC pipe, a small shovel, a multi-layer sieve, paper envelopes, labels, and alcohol.
• 😀 To collect the sample, place the PVC pipe on the riverbed, dig out the substrate with a small shovel, and place it in the multi-layer sieve.
• 😀 After sieving, transfer the collected benthos into sample bottles that have been pre-filled with alcohol.
• 😀 Attach labels to the sample bottles and write down the relevant information regarding the research.
• 😀 The benthic samples will be brought to a laboratory for further analysis and research.
• 😀 The speaker encourages the audience to stay healthy and motivated in their learning, wishing them success in their studies.

Q & A

What is the purpose of the video in the transcript?

The purpose of the video is to demonstrate how to collect benthos samples for an ecology practical in a river environment, specifically in Menolong, Aceh Besar. The video guides viewers through the sampling process and provides instructions on the necessary tools and materials.

What is the geographical location of the river mentioned in the script?

The river discussed in the video is located in Menolong, Samahani, Aceh Besar. The river is sourced from Mount Samahani.

What are the main types of substrates found in the river?

The riverbed has a substrate consisting mainly of sand and large rocks.

What are the key materials required for benthos sampling as described in the video?

The key materials required for benthos sampling include: a 1-meter PVC pipe (square cross-section), a small shovel, a tiered sieve, sample bottles, paper labels, and alcohol for preservation.

What is the first step in the benthos sampling process?

The first step is to place the 1-meter square PVC pipe on the riverbed to demarcate the sampling area.

How is the substrate collected for the benthos sample?

The substrate within the 1-meter square PVC pipe is collected using a small shovel.

What happens after the substrate is collected in the script?

After the substrate is collected, it is placed into a tiered sieve to separate the benthos from the substrate.

What is done with the benthos once separated from the substrate?

Once separated, the benthos is transferred into a sample bottle that already contains alcohol for preservation.

What should be written on the labels for the sample bottles?

The labels on the sample bottles should contain the relevant information about the research, such as the date and location of the sample collection.

What is the final step after collecting the benthos samples?

The final step is to take the collected benthos samples to the laboratory for further analysis.