Different sizes and species produce different number of eggs, often in the millions.Light plays a vital role in the life of all oceans. They all breed via spawning, where the females and males release their eggs and sperm into the water, and fertilization occurs outside of the body. However, each species has its own specific breeding rates. The mating habits of each species vary slightly. These migrations often occur seasonally or based on water temperature. The size of these schools varies based on the species as well. They have social lifestyles and live in groups known as schools. The exact behavior of these creatures varies based on the species. They often house them with other large predatory fish, and feed them herring, capelin, smelt, squid, shellfish, and more. The tanks often have slightly rounded edges to prevent the fish from hitting the sides. Those that do house them in massive tanks designed for pelagic species. Tuna CareĪquariums do not frequently keep these fish. They reach lengths much too large to house in a home aquarium. No, you could not keep these fish as pets. Humans have not domesticated this species in any way. The IUCN lists each species differently, and many face dire threat. This activity has led to decline in virtually all species, but the extent of this decline varies. Depending on the species, people often hunt them commercially and/or for sport. Each faces different pressure from fishing. Humans utilize the various species as food sources. They eat a wide range of different fish, squid, and invertebrates. Smaller individuals and species hunt for smaller prey, while large fish can hunt larger prey. As a whole, their most common prey includes fish and squid. Diet of the TunaĪll eight species have carnivorous feeding habits, which means that they hunt for smaller animals.

They live in the Atlantic Ocean, Pacific Ocean, Indian Ocean, and more. As a whole, they utilize temperate and tropical seas and you can find various species throughout these regions. Other species live only in specific regions. Some species have cosmopolitan range and live across nearly the entire globe. Distribution of the TunaĮach species has its own unique distribution. Some range into relatively deep waters, though this varies by species. As a whole, they live both near the coast and offshore. They have pelagic habits, which means that they live in open water rather than utilizing the sea floor. Though each species has its own specific preferences, as a whole they utilize similar habitat types. They catch juvenile fish and transfer them to the pens, where they raise them to their adult size and sell them. In Australia, “ranchers” build offshore pens to raise fish. Tuna Farming – People in some areas have attempted raising these fish in an aquaculture, or farming, setting.This allows them to maintain their body temperature in cold waters, letting them hunt in deep water without losing strength or speed. Self-Regulation – Researchers recognize this group as one of the few fishes that can maintain their body temperature in a way similar to mammals.International pressure for fish has caused depletion in many regional and global populations of these fish. Sushi and Sashimi – People utilize many of the various species as a source of food for sushi and sashimi.The Eight “True” Tunas – The eight species in this group are the albacore, southern bluefin, bigeye, Pacific bluefin, Atlantic bluefin, yellowfin, blackfin, and longtail Tuna.

These fish have a number of different traits and adaptations that make them unique. long, and weigh up to 570 lbs! Interesting Facts About the Tuna Each species has its own size and weight ranges.

Lantern fish feeding habits