While fish near the surface may die when lightning strikes the water, the fish that are deep underwater are likely to survive. Lightning strikes the surface of the water, but its electricity is neutralized deeper down.
A:Goliath grouper are the largest members of the sea bass family in the Atlantic ocean. They weigh up to 800 pounds and are up to 8.2 feet in length. They are also heavily built, and their bodies are half as wide as they are long at their widest point.
A:A fish has a heart, which acts as the center of its circulatory system, pumping blood throughout the body and transporting vital nutrients and oxygen to cells. The size, placement and strength of a fish's heart differs between species.
A:Betta fish approach their prey while swimming sideways. Betta fish are primarily carnivorous surface feeders that consume zooplankton, crustaceans, the larvae of mosquitoes and other water-bound insects.
A:Fish use their gills to breathe by extracting oxygen from the surrounding water. The oxygen that fish and other animals with gills use is bonded to hydrogen molecules and is dissolved in the water. Water molecules are composed of two parts hydrogen and one part oxygen.
A:Guppies add life and color to a home aquarium, but they require special care to ensure their longevity. Caring for guppies requires a tank, a lighting unit, an air pump, a filtration unit, a siphon vacuum, water and fish food.
A:Fish that do not have scales include catfish, sharks, rays, chimaeras, skates, moray eels, sturgeons, paddlefishes, salifin blennies, combtooth blennies, hagfishes and lampreys. Many of these fish have evolved scale alternatives.
A:Baby catfish in the fry stage eat the same foods that any other egglayer fry would eat. Egglayer fry eat the smallest foods that can be given, including infusoria, which is a culture of swimming protozoa. After a week, catfish fry can also eat nutritious brine shrimp and nematodes.
A:Freshwater angelfish are a popular type of aquarium fish. Their anal and dorsal fins have an exaggerated shape that remind people of the wings of angels. Angelfish come in several bright colors and patterns, and they are easy to care for and not particular about their diet.
A:Salmon do have scales, and the scales have concentric rings that can be counted to determine the age of the fish. Salmon scales and skin do not have to be removed before cooking, which makes preparation easy.
A:Clownfish, also called anemonefish, live in the warm waters of the Pacific and Indian Oceans, the Red Sea and the Great Barrier Reef. These fish have a symbiotic relationship with anemones, which are slow-moving invertebrate animals that look like flowering plants. Clownfish never venture far from their anemone partners.
A:Manta rays and stingrays differ in size, diet and appearance. Manta rays are significantly larger than the stingrays, with oceanic mantas reaching a size of 23 feet from wing tip to wing tip, and reef mantas, a smaller species, reaching a wing span of 9 to 15 feet. Larger stingrays grow to 6.5 feet in length. The manta ray also lacks the characteristic venomous stinger found on the stingray's tail.
A:Salmon return to rivers from the ocean and swim upstream to their original hatching place to lay and fertilize their eggs. Swimming upstream is hard work, and only the strongest complete the journey and spawn the next generation of salmon.
A:Koi carp grow to an average size of 24 to 36 inches long. It is possible for some to reach lengths greater than 4 feet but only when pond conditions replicate their natural environment and they have plenty of space.
A:While there is no way to know how many fish are in the sea, the number of fish species in the world's oceans, seas and other bodies of water is estimated to be between 27,300 and 32,000 total as of 2014. This number includes both freshwater and saltwater fish.
A:While fish near the surface may die when lightning strikes the water, the fish that are deep underwater are likely to survive. Lightning strikes the surface of the water, but its electricity is neutralized deeper down.