Large bodies of water, especially those that are enormous, are highly complex environments. However, they’re extremely vulnerable to the elements of weather. When air masses move across the ocean unimpeded, their strength can impact everything from the fish themselves to every dimension of their surroundings. Fish can survive in this environment because they bare highly sensitive to changes. All fish have lateral line systems—organs that detect even the slightest movements and pressure changes in the water around them. Many species of bony fish also have a swim bladder—a gas-filled chamber that controls buoyancy and helps a fish maintain a particular depth. Air pressure above also affects the air pressure in the swim bladder even though the fish are underwater. To what degree depends on the species. For example, Red Grouper, Black Sea Bass and Gag have large swim bladders. In contrast, Sharks, Flounder, Cobia and Mackerel are examples of fish that don't have a swim bladder and are less vulnerable to air pressure changes. Science gives us a tidy way of layering a body of water by temperature and density. It’s called the thermocline, and it basically defines the boundaries of survivability for various species. How Inclement Weather (Hurricanes & Tropical Storms) Impacts Fishing
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