Deprecated: Hook custom_css_loaded is deprecated since version jetpack-13.5! Use WordPress Custom CSS instead. Jetpack no longer supports Custom CSS. Read the documentation to learn how to apply custom styles to your site: in /home/users/waleedkhalid/www/ on line 6078
Why Are Blue Whales Endangered?
Image source

Why Are Blue Whales Endangered?

November 1, 2017
1 min read

The blue whales population has now dwindled due to the direct exploitation of these whales during the 20th century. In the past, the blue whales were subject to commercial whaling but it is no longer a threat now. It is probable that the two major threats facing these whales are the vessel strikes and the entanglement in fishing gear. However, even these are not frequently reported and a very few cases of ship strikes or fisheries interaction have been documented. All in all, there seems to be no real threat to these whales.

Apart from these, there are some other possible threats that may endanger the survival of these whales. Some of these other threats include chemical pollution, anthropogenic noise, loss of habitat and disturbance caused by whale-watching vessels.

Global warming may also have a detrimental impact on the population of krill, the favorite diet of blue whales. Besides, there are certain pollutants that acidify the ocean waters thereby destroying the food supply and habitat of these massive whales.

The frontal zones are beneficial for the food supply of the whales as they bring a lot of nutrients from deep inside the ocean water thereby allowing phytoplankton and other food supplies to grow. Sad to say, the climate change had an adverse impact on the frontal zones, that appear to be moving southward. Thus, the blue whales has to travel farther away for about 200 to 500 kilometres in search of these feeding sites.

The vessel strikes can also cause fatal injuries to the blue whales. Off southern California (Santa Barbara Channel), three blue whales were killed due to ship strikes in the year 2007. Likewise, they are more vulnerable to collision with ships in areas where there is heavy ship traffic like in Gulf of St. Lawrence off western North Atlantic, where the ships caused injury to more than 9 percent of whales.


“Blue Whale”. WWF

“Blue Whale”. National Oceanic and Atmospheric Administration – NOAA FISHERIES

Reilly, S.B., Bannister, J.L., Best, P.B., Brown, M., Brownell Jr., R.L., Butterworth, D.S., Clapham, P.J., Cooke, J., Donovan, G.P., Urbán, J. & Zerbini, A.N. 2008. Balaenoptera musculus. The IUCN Red List of Threatened Species 2008: e.T2477A9447146

Latest from Blog

Cane Rat (Thryonomyidae)

Cane rats are robust rodents with stocky bodies, small ears, and short tails; body covered with sharply pointed, but pliable, spiny hairs; broad, heavily built orange-colored chisel-shaped incisors, with the upper ones grooved longitudinally at the front. They will make habitats in grasslands and wooded savanna. What Do Cane Rats…

What Do Antbirds Eat?

Antbirds (Formicariidae) are small to medium-sized songbirds with short, rounded wings, a short or long tail, and a stout or slender bill slightly hooked at the tip, feed on insects on the ground or in trees or thickets; prey is usually gleaned from foliage, although some species also catch flying…

Where Do Mountain Beavers Live?

Mountain beavers do not hibernate and so are active throughout winter. They are primarily nocturnal but are frequently active for short periods during the day. Mountain Beaver Habitat Habitats used by mountain beavers vary, but are typically forests with dense patches of herbs and shrubs. This vegetation supplies not only…

What Do Pangolins Eat?

Pangolins love munching on bugs, especially ants and termites. They sniff out their insect feasts, and sometimes the big pangolins go for the larger bugs. What’s on the menu can change depending on what’s available or the time of year. What Do Pangolins Eat? Pangolins can be a bit choosy,…

Proper Nutrition for Pets

Pet care is a complicated topic, as it is challenging to come to a single opinion. However, most owners will agree that the choice of food has a substantial impact on the condition of cats and dogs. Since much depends on the correct determination of needs, it is worth paying…
Go toTop