What Does a Marine Engineer Do? Marine engineers design the vessels that we use to navigate and explore the world's lakes and oceans. Marine engineers' work supports key activities like naval defense, environmental research, international trade, and resource extraction. Read this article to learn what it's like to be a marine engineer.
An adult can weigh anywhere from 2,200 to 6,600 pounds (1,000 to 3,000 kilograms) and can measure from 12 to 18 feet (3.7 to 5.5 meters) in length. Finally, the largest dolphin is the killer whale, or orca.An adult female orca can weigh in at a whopping 16,500 pounds, and the male can weigh up to about 22,000 pounds (a range of 7,500 to 10,000 kilograms).Female orcas measure about 28 feet (8.5 meters) in length, and males are about 32 feet (10 meters) long at their largest.nother small dolphin is the Indus river dolphin; as an adult, this dolphin weighs about 150 to 200 pounds (70 to 90 kilograms) and measures 7.5 to 8.5 feet (2.3 to 2.6 meters) in length.
The average lifespan of female orcas in the wild is 50 years, with several individuals living as long as 80â100 years. Male orcas become fully sexually mature at age 25. Between ages 12-15 their dorsal fin begins to grow taller and straighter, indicating the onset of sexual maturity. They typically donât mate until after the age of 20. Male orcas in the wild live 29 years on average, with a maximum of 50â60 years. J2âs relative, J1 (died in 2010) was estimated to be 59 at his death. A captive orca's lifespan is typically much shorter, often by 25 years or more. Killer whales are the largest members of the dolphin family.