What is the lifespan of an octopus?

In this brief blog, we will answer the query,”What is the lifespan of an octopus?” We will also look at why octopus have short lifespans. We will finally briefly discuss if octopuses are endangered because they only reproduce once and have short lifespans.

What is the lifespan of an octopus?

The lifespan of many species of octopus averages between 1 to 2 years. However there are various species of octopuses and they have different lifespans such as below:

Common octopus

These octopuses are brownish green and are usually 1 to 3 feet long including the arms. These species have a lifespan of 1 to 2 years.

Mimic octopus

The mimic octopus also known as Thaumoctopus mimicus are a species with dark brown stripes, two feet that includes arms that usually mimic other animals and can do acts such as hiding their legs as a way of camouflaging. They have a lifespan of 1 to 2 years

Blue-ringed sea octopus

These are a species of octopus which are yellow with bright blue circles and are small, usually about eight to ten inches when including their arms. These species are very poisonous with a venom that is 1000 times more potent than venom. They have a lifespan of 1 to 2 years

Dumbo octopus

This species is characterized by a universal tan color and has short arms. It tends to reside in the deeper waters of the ocean and usually has fins on the side of its head. It has a lifespan of 3 to 5 years.

Giant Pacific octopus

This species is usually reddish pink in color and 14 to 16 feet including its arms. It is the largest octopus and has the longest lifespan at 3 to 5 years.

Why do octopuses have short lifespans?

Octopuses are one of the many species of animals that usually die after they mate or give birth. Male octopuses usually fertilize the female eggs by themselves or alternatively give the females their sperm for safekeeping until the female eggs are ready for fertilization.

Once this happens, the male octopuses usually die shortly after. The female octopuses usually live long enough so as to give birth to their young ones and then shortly die thereafter after the young octopuses are born.

Are there any other animals that die soon after mating?

There are animals that die after mating in what is known as semelparity. There are several spider species where the female will eat the male after mating, this also applies with the praying mantis. 

The male kalutas which are small mouse like marsupials majorly found in the arid regions of Northwestern Australia usually die right after mating and are among the few mammals that undergo this.

Fish such as salmon are also known to travel to their spawning grounds where they end up dying soon after they have reproduced. Although these animals only reproduce once they usually have large no.s of offspring in an episode.

If octopuses only reproduce once and have a short lifespan are they endangered?

No, octopuses are not endangered according to The International Union for Conservation of Nature (IUCN). The common octopus species are listed as “Least Concern” by the IUCN. Human activities such as fishing and harvesting are not a big issue to the population of octopuses at the moment.

However, the fishing industry is advised to maintain any fishing regulations out there so as to ensure that there is a great balance of octopuses and the populations do not dwindle over time.

Conclusion

In this brief blog, we have answered the query,”What is the lifespan of an octopus?” We have also looked at why octopus have short lifespans. We have finally briefly discussed if octopuses are endangered because they only reproduce once and have short lifespans.

We hope you enjoyed reading this blog and found it to be insightful. If you have any queries and comments, please feel free to leave them down below.

Citations 

https://animals.mom.com/animals-die-giving-birth-9247.html

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