A Sperm Whale Calf Approached The Ship! (Ogasawara Islands)

小笠原 父島 マッコウクジラ マッコウクジラの子供 Bonin Island Sperm Whale (2)

The water of Chichi-jima (Father Island) in the Ogasawara Islands, at depth of 1,500-2,000meters, are known as a place where female sperm whales with their calves observed throughout the year.

Having said that, it is best to visit this area when the seas are calmer, usually from July to October.

In October, on a day when the conditions were favorable, we headed to the whale watching area off Chichi-jima. We were lucky to encounter a group shortly after we started our search. Each of the groups was made up of 3 to 6 individuals.
Then, we found a lone calf by itself, patiently waiting for its mom, who had gone for a dive into the deep sea.

小笠原 父島 マッコウクジラ マッコウクジラの子供 Bonin Island Sperm Whale (5)

The baby looks as if it is flying, with such clear water. The calf’s body was a lighter color, but it had the typical wrinkles primarily seen on Sperm Whales, along with some scars of bitemarks from the cookie-cutter sharks.

小笠原 父島 マッコウクジラ マッコウクジラの子供 Bonin Island Sperm Whale (4)

This young sperm whale, swimming upside down towards our boat, was so close, that we could actually hear the “talking” clicking sounds on our ship!

小笠原 父島 マッコウクジラ マッコウクジラの子供 Bonin Island Sperm Whale (3)

We could so clearly see the lower jaw of the whale!!!

小笠原 父島 マッコウクジラ マッコウクジラの子供 Bonin Island Sperm Whale (8)

We parted for a little, but then it returned, approaching the boat again. This time with its mouth open.

小笠原 父島 マッコウクジラ マッコウクジラの子供 Bonin Island Sperm Whale (13)

This is the calf with its mouth wide open. We could clearly hear the clicking sounds again.

小笠原 父島 マッコウクジラ マッコウクジラの子供 Bonin Island Sperm Whale (12)

Amazingly, it flattened its fins and rotated while swimming into the edge of the ship, making the suckerfish scuttle around. Perhaps this was an offensive ?

小笠原 父島 マッコウクジラ マッコウクジラの子供 Bonin Island Sperm Whale (6)

A sperm whale swimming towards the direction of Chichi-jima.

小笠原 父島 マッコウクジラ マッコウクジラの子供 Bonin Island Sperm Whale (1)

This young sperm whale also came up alongside our ship, raised its face and seemed to look up over at the top of our boat.
The youngster seemed to enjoy spending time with us and then, eventually left and swam back to its mother and the family.

In Ogasawara, you can see these groups of females with their calves, but I wonder if we could ever see a male that comes to have mate someday? It would be such a dream to be able to see a male sperm whale in such clear water like this!

Photo & text: Mariko SAWADA
Observation: Oct 2020, Chichijima, Ogasawara Islands
Special Thanks: FISH EYE

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