The bar chart provides information about changes in population of 3 marine spices (Seal, Whales, and Dolphin) in salt water between 2006 and 2018.
Overall, number of seals were higher in beginning compared to whales and dolphins, but the population of three species changes during given period and at the end population of dolphins were higher from whales and seals.
In contrast, number of seal in 2006 were 42 whereas, number of whales and dolphin were not even half of that (nearly 23 and 15 respectively). In 4 years, population of all 3 marine species were fall down, number of the whales outrace seal and became highest (25) while population of seal and whales were 24 and 21 respectively.
In 2014, population of whales shows downward trend and reaches to 22 while rise were seen in numbers of seals and dolphins, with both exceeding 30. However, all 3 spices population increased in 2018, numbers of seals and dolphin crossing 40 (43 and 45 respectively) and population of whales were lowest at 28.
