Bottom-up budgeting can be a good thing because lower management plans the budget based on the needs of the specific department. A manager of a department is more familiar with what is required, like supplies, labor and capital, to meet departmental goals.
Swim Bladder. Swim bladder is an illness that affects a fish's equilibrium and is common in goldfish, causing the fish to float to the top or sink to the bottom, or to float sideways or upside down. Other signs include difficulty in swimming and swimming sideways or upside down. Constipation is the most common cause of swim bladder.
Therefore it is likely any fish that could survive in brackish water, in shallow water or on land even for a short time could get plenty of food that was easy to take. This could apply to carnivores or herbivores and could have been a factor in fish evolving to live on land.