In this article, Regan shares her opinion on the state of whale populations.
The ocean is a dynamic web of life, each piece a crucial link between the rest. Unfortunately, modern times have brought uncertainty to the fate of many different marine species, leaving disastrous consequences for undersea ecosystems. One of the most impactful species in decline is whales. Human activities have put whale populations in jeopardy and, in turn, have risked the fate of the whole ocean.
Declining Right Whale populations have been monitored by the Anderson Cabot Center for Ocean Life in North Carolina. Their data shows that the Right Whale population has gone from nearly 500 to less than 365 in a matter of five years. They have also found a drastic decrease in mother/calf pairs, which averaged 24 in the 2000s but have dropped to 15 during the 2022-23 calving season. Whale populations such as the Right Whales are in no position to replenish their population, especially if the amount of healthy adult whales continues to decrease. The Anderson Cabot Center for Ocean Life estimated that “human activities are killing as many whales as are being born into the population.” If action is not taken soon to slow whale mortality, the population may never be able to rebound.
The main culprit of whale deaths are human activities. Fishing gear entanglement, boat collisions, and pollution have caused a significant amount of deaths, and severe injuries have impeded on birth rates. A resurgence in whaling has also caused problems, particularly in Japan, where the practice has been legalized. According to CNN, Japanese whalers killed 596 whales from 2017 to 2018 in an attempt to revive the industry. The main whales being hunted are Bryde’s whale, Minke whale, and the endangered Sei whale, whose population is already at severe risk. If whaling continues at this rate, whole whale species could be wiped out, with others significantly shrinking.
To say that whales play an important role in their ecosystem would be an understatement. Whales not only impact life under the sea but life on land, as well. Whale feces nourish phytoplankton, microscopic organisms that absorb carbon dioxide from the atmosphere, helping to negate the effects of global warming. Whales themselves also help absorb carbon as, when they die, their bodies sink to the bottom of the ocean, trapping their stored carbon for centuries. According to the Animal Welfare Institute, “whale species sequester nearly 29,000 tonnes of carbon per year,” This number has decreased by 9.1 million tonnes in recent years due to increases in commercial whaling. Whale carcasses also play a huge role in providing nutrients to deeper parts of the ocean. Due to declining populations, various deep sea organisms have gone extinct, spelling disaster for the ocean's biosphere.
The health of the ocean relies on its organisms and the health of the world relies on the ocean. Though whales may seem like a small piece of a much larger picture, they play a part much greater than themselves. If action is not taken to protect whale populations, the effects could be globally devastating. Not only will the ocean feel the consequences but humanity will suffer, as well.