“Aggression and territory defence is a really high-energy behaviour, so it requires a high level of nutrients in order for that behaviour to be carried out,” says Gunn. It doesn’t make sense for the fish to aggressively defend a larger territory with lower value. “It just isn’t worth investing that extra energy in being aggressive,” she says.
According to a report in New Scientist, Rachel Gunn, then at Lancaster University, UK, and her colleagues have now shown that this change in nutrient flows directly affects the behavior of reef fish.
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The right balance of biospecies and nutrients in aquarium design
Though the research studies the impact of rats, but the theory can be extended to a bio-space like aquarium as well. Gunn says, “Removing rats would bring back seabirds, restore nutrient flows into the reefs, and give the resident fish a chance to revert to their naturally aggressive behaviors.”
If we have some aggressive fish or other aquatic species in our aquarium, they will have a similar effect as the aggressive rats in the abovementioned research. Therefore, the aggressive nature of biospecies and their right mix become very important in aquarium design.
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