Which consequence results when excessive freshwater influx overwhelms a salmon's active osmoregulation?

💡 Explanation

Reduced salinity causes water influx; the effect overwhelms active transport, causing hyposmotic conditions. Active osmoregulation removes water, but it is insufficient because the influx is too great; therefore, plasma osmolarity drops excessively rather than maintaining ion balance or altering kidneys.

• Which outcome occurs when nitrogen-fixing bacteria lacks molybdate?
• Which photosynthetic constraint increases when photorespiration rate rises proportionally to oxygen concentration?
• Which outcome consistently decreases xylem tension as atmospheric humidity increases around a plant?
• Which effect occurs when a swim bladder rupture prevents barotrauma compensation at depth?
• Which outcome directly results when diadromous fish encounter downstream osmotic gradient reversal?
• Which risk increases when avian plumage develops significant oil fouling?