What comprised over 70% of the diet by weight for older bass in the lower Mississippi River oxbow lake study?
Answer
Fish, fish eggs, amphipods, and benthic insects.
Diet composition varies geographically and by age class, as demonstrated by studies in specific environments. In research conducted on an oxbow lake situated on the lower Mississippi River, the dietary analysis for older yellow bass (age-2 and older) showed a pronounced leaning toward larger, denser food items. This finding indicated that the combination of fish, fish eggs, amphipods (a type of crustacean), and benthic insects collectively accounted for more than 70% of the total dietary mass consumed by these mature individuals, underscoring the prominence of piscivory and larger invertebrates in their mature menu.
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