Saturday, 18 February 2017

Humpback Whales -- Gorgeous Ocean Mammals

Introduction :

Whales are Mammals that live their entire lives in the vast oceans that cover the earth.

As they are Mammals, they give birth to young ones just like Humans do. Their Life -Span is also similar to Humans.

Humpback Whales have bodies that are well geared to move through vast oceans. Their Bodies are constructed in such a way that helps them to survive in oceans where the currents are fairly strong.

Humpback Whales have extremely strong fins that help them to move through vast amounts of water in the Pacific Ocean and Atlantic Ocean.

Since, Humpback Whales are Mammals they need to come to the surface of the water regularly to breathe.

Eating and Breeding Habits :

The average Humpback Whale feeds mostly on Krill and on small fish like Herring. They eat about 500 Kilos of small fish and krill every day in order to maintain body weight.

North Pacific Humpback Whales spend their time breeding in the coastal waters around Hawaii.

Humpback Whales start arriving in the waters around Hawaii from early October and their numbers rapidly rise by February and March.

Humpback Whales that are young mothers usually have their first calf when they are between 8-10 years old. Calves that are just born are around 10-15 Feet in Length.

Humpback Whales that live and breed in the Pacific Ocean are "Pseudo Opera Tenors of the Pacific" because of their seeming sorrowful songs they sing to each other during the breeding cycle.

Conclusion :

It seems like Humpback Whale Populations are generally doing well but yet there are areas of concern.

As, their populations increase there is the possibility of accidents because of collision with Humans on the High Seas namely in the form of deadly accidents with Merchant Navy Ships and getting caught in Fishing Nets of Deep Sea Trawlers.

The need of the Hour is to have a strict "No Fishing Zone" in the Pacific Ocean where Humpback Whales live and breed.

Credits and References :

Humpback Whales of South Eastern Alaska


Thursday, 2 February 2017

Bryde's Whales -- Giant Mermaids of the Indian Ocean

Introduction :

Bryde's Whales that live in and around the Indian Ocean belong to the Family of "Baleen Whales" which includes a number of "Rorqual Whales" such as Blue Whales.

Bryde's Whales have been observed in the recent past in Pods of 4 Whales each off the Coastal Waters of Ratnagiri District in Maharashtra State in the company of "Behemoth"  Blue Whales.

Bryde's Whales are frequently found in warm tropical and sub-tropical Oceanic Waters.

They feed on a variety of Fish found in the Open Ocean like Salmon, Tuna, Mackerel, and specially Krill which makes up a major proportion of their diet.

They normally weigh anything between 10 Tonnes -40 Tonnes. They are normally 13-16 metres in length when they are fully grown adults.

Bryde's Whales that are Male are normally smaller in size than Females. This can be observed all over their range in the Indian Ocean.

Bryde's Whales have between 40-70 Pleats around the region of their bodies that expand when they are feeding on Shoals of Fish and Krill.

Breeding Behaviour :

Male and Female Bryde Whales are physically mature when they are between 10-12 metres in length.

Male Bryde Whales are thought to be 10 -15 years of Age while Female Bryde Whales are thought to be between 8-10 years of age. Female Bryde Whales give birth once every 2 years and Calves are born in the Summer Season.

Conclusion :

The Biggest Challenge with regard to protecting Bryde's Whales in the Indian Ocean is protecting them from Ocean Going Merchant Ships which accidentally collide against them in the open ocean.

Another Danger is protecting them from Industrial Pollutants that are released in the open ocean.

Credits and References :

Whale of a View
Wednesday December 14, 2016
Hindustan Times, Mumbai