Blogging about animal behaviour (2010)

LSM1303 Animal Behaviour student posts

The Extremely Scarifying Mother

Filed under: Uncategorized — u0907920 at 12:54 pm on Saturday, April 3, 2010  Tagged

Octopus mother

Despite regarding as a monster of the sea, in protecting eggs, octopus ( octopus vulgaris) turns out to be one of the most extremely scarifying mothers in the planet.

Life of octopus mother is mainly for reproduction. From an egg to an adult (for about one year), octopus mother has to live a fearless way as she needs to hunt and eat as much as possible to prepare for laying eggs. Octopus lays eggs once in its life but an enormous number of eggs from 50,000 to 200,000 is produced. After this, unfortunately, everything is not over for an octopus mother.
Octopus eggs

She then is so busy to look after her eggs that she even does not have time to hunt and eat. She must keep flowing water over eggs and gives them the gentle wash regularly. It is to provide octopus babies with oxygen so that they can breathe through tiny holes in eggs’ cell. She also needs to watch over and fights against her ancestors like the cod, which always try to steal her eggs if they have chance.  It takes eggs roughly 40 days to hatch so it is also 40 days without eating and resting of an octopus mother. Nevertheless, no matter how hungry she is, she never leaves her eggs unprotected. Octopus mother has been  known to digest her own arms to live during this period.

After egg hatching, octopus mother completes her mission and falls into serious condition. She is too weak and exhausted due to long time nurturing and protecting her eggs. It can be said that at this time, life is over for an octopus mother as she can not protect herself from attacks of other fishes.

Although she dies,  a new generation of octopus is produced thanks to her extraordinary devotion. In brief, it can be seen  that octopus is really one of the most extremely scarifying mothers becauseshe invests all of her life in her babies.

The Most Extreme – Octopus Mother

Female Octopus Death Cycle

Reference

P. R. Boyle and Daniela Knobloch (1983). The female reproductive cycle of the octopus, Eledone cirrhosaJournal of the Marine Biological Association of the United Kingdom, 63 , pp 71-83

E. J. Batham ( 1956). Care of Eggs by Octopus maorum. Portobello Marine Biological Station, Protobello, New Zealand.URL: http://rsnz.natlib.govt.nz/volume/rsnz_84/rsnz_84_03_005810.pdf ( accessed on 3 March 2010)

” Octopus” . Wikipedia, 2 April 2010. URL: http://en.wikipedia.org/wiki/Octopus ( accessed on 3 April 2010)

” Top 10 animals mom”. Animal Planet, 3 March 2010. URL:http://animal.discovery.com/tv/a-list/creature-countdowns/moms/moms-09.html ( accessed on 3 March 2010).

” Female Octopus Death Cycle”, by TheRealSeanoftheDead. National Geographic Youtube Channel, 3 March 2010. URL: http://www.youtube.com/watch?v=5I_F2EC7au0 ( accessed on 3 March 2010)

” Octopus Mother”, by 0205bunny. The most extreme. Animal Planet  Youtube Channel, 3 March 2010. URL:http://www.youtube.com/watch?v=EB-qu370BFE ( accessed on 3 March 2010)

” She would fight any intruder to protect her young”, by Bart River. The Octopus Mother, Science Stories, 3 March 2010. URL:http://www.highlightskids.com/Science/Stories/SS0897_octopusmother.asp ( accessed on 3 March 2010)

” Octopus eggs”, by Miklos Volner. Flickr,  6 May 2009. URL:http://www.flickr.com/photos/volner-underwater/3508340030/ ( accessed on 3 March 2010)

” Friday Sprog Blogging: syngnathids vs. cephalopods”, by Janet D. Stemwedel. Science Blog, 15 September 2006. URL:http://scienceblogs.com/ethicsandscience/2006/09/friday_sprog_blogging_syngnath.php ( accessed on 3 March 2010)



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