Question

based on the fishway efficiency table, which change to a fish lift would have the least effect on the overall efficiency of the fish lift? hide all a the size of the fish basket b the height of the dam the fish lift is built for c the flow rate of water through the fish lift d the number of fish gates the fish need to navigate

Explanation:

To determine which change has the least effect on fish lift efficiency, we analyze each option:

• Option A (fish basket size): Likely has a minor impact as it relates to holding capacity but not core operational efficiency drivers like water flow, dam height, or gate navigation.
• Option B (dam height): Dam height directly influences the lift's work, so changes here would significantly affect efficiency.
• Option C (water flow rate): Flow rate is crucial for fish movement and lift operation, so changes impact efficiency.
• Option D (number of fish gates): More gates mean more navigation challenges, affecting fish passage and thus efficiency.

Among these, the size of the fish basket (A) is the least impactful on overall efficiency.

Answer:

A. the size of the fish basket