Which fish species is not a dominant presence when phytoplankton production is high?

Trout are typically found in cooler, well-oxygenated waters, and they often thrive in environments with lower phytoplankton production. High phytoplankton levels indicate greater nutrient loads, which often lead to warmer, sometimes more turbid water conditions that are less ideal for trout populations. In contrast, bluegill, catfish, and pike are more adaptable to such conditions. Bluegill can thrive in warm, nutrient-rich waters, catfish are often bottom feeders that benefit from high productivity, and pike can hunt effectively in these environments where prey is abundant. Consequently, trout are less dominant in high-phytoplankton production situations due to their specific habitat and water quality preferences.