MOLLUSCA
isnt this animal quite??
this is known as Carribean Reef squid...it it an invertribate and belongs to the phylum Mollusca..the same phylum to which octopus belongs....
its science exhibition time in ma college and im doing a project on molluscs..i love the life under water and selected mollusca because the bivalved oysters belong to this phylum who produce the most sought after "pearls"...(just for additional info...not all oysters produce pearls....and even those who produce them..the pearls of Pinctada punctatus are of highest standards)...so thought why not put some pics here too....along wid some info;)
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The majority of squid are no more than 60 cm in length, but the giant squid is reportedly up to 20 m in length, which made it the largest invertebrate in the world, and it has the largest eyes of all. Recently, however, an even larger specimen of a poorly understood species, Mesonychoteuthis hamiltoni (the Colossal Squid) has been discovered. Giant squids are featured in literature and folklore, with a strongly frightening connotation.
A giant squid was observed for the first time on September 30, 2005, by two Japanese scientists: Tsunemi Kubodera of the National Science Museum (of Japan) and Kyoichi Mori of the Ogasawara Whale Watching Association. From their initial observations, the scientists concluded that giant squid appear to be more aggressive than previous thought. A 5.5 meter long tentacle was retrieved (accidentally) from the creature and DNA tests compared with other giant squid specimens previously washed up on shore confirmed that indeed they had observed a live giant squid. The scientists estimated the total size of the squid to be eight meters.
--------------------------------------------------------------------------------------------FRESHWATER PEARL CULTURE
More than 50 species of freshwater mussels are found in Indian rivers and lakes, but "L. marginalis" is yet found suitable for pearl culture. In the pearl culturing operation in freshwater, one to two years old healthy mussels are collected, it remains at the bottom of the freshwater lake/pond. Its shell is oblong-ovate, thin and smooth. Periostracum is blackish-brown, shinning with alight brown border along the ventral margin. Posterior end of the shell is broad, roundly angular, produced the wing being narrow. Dorsal margin is slightly curved, anterior side short and narrow, the ventral margin contracted the middle. Hinges has two cardinal teeth the lower one being more developed. A single lateral tooth with a trace of the second tooth is present on the slightly developed cardinal and two lateral teeth.
Healthy mussels are collected by hand picking from the bottom of a lake/pond. After cleaning those are kept for pre-operative condition to prepare them for implantation. Then these mussels are sorted in to two groups, mussels to be operated termed as" recipient mussels" and those to be sacrificed designated as "donor mussels".
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An octopus has eight arms called tentacles. Each tentacle has 240 suction cups on it. If you multiply 8 times 240, you get 1,920 suction cups!
Octopuses like to eat shellfish, especially crabs. When an octopus sees something it likes to eat, it reaches out with a long rubbery arm and grabs it. The suction cups help it get a good grip. Then it carries the prey to its mouth.
Sometimes the octopus can be injured by another animal. If it loses an arm, another one will grow back! Starfish can do this too. It is called regeneration.
The tentacles also come in handy when the octopus wants to creep along the ocean floor among the rocks and plants. The suction cups help it grip the rocks and pull itself along.
Goliaths of the octopus world, giant octopuses can grow to be 30 feet long and weigh 600 pounds. People once called it "devilfish"—they said it was ferocious, blood-thirsty and strong enough to sink ships. In fact, the giant octopus is shy and poses little danger to divers, fishers or swimmers.  | |
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its think this much is enough..the post is getting lengthy and boring.....:)(not for me haan....i can sit and watch these creatures for a life time)
wont be coming up with a new post next weeks....so please read this one in bits and parts:)
babyeeee
posted by preetishere @ 2:31 AM
10 Comments:
Oh my GOD!!!
So zoology has infiltrated blog world too..lol
my dad is a zoologist n so i am continuously bombarded with these species n family stuff.. mollusca, arthropoda n et al
u working in the same field kya?
n btw, the invitations r always open to all
EVERYONE IS INVITED :)
oh thats soo coool....i would love to meet your dad:):)
im still a student..one of my optional subject is zoology...i just love the subject.
thanks ill make it sure to be there:)
WAWWWW...
Nice read...
I was not aware of all these things...though had heard about it in bits and pieces..
Thanks for sharing it with us Preeti zeeeeeeeee!!!
Btw, how you doing??
Long time no see...or heard from your side :(
Hmmmmmm....
Now that read about Octopus...I would luv to have one in ma fish tank :)
What say??
Psssstt...smuggle me one if you have on in ur college lab ;)
u in hyderabad, he is in himachal n i m in pune..
meeting??? .. lollzz
u luv zoology... tht means u r the 2nd preety gal i know who luvs tht subject.. first being Aishwarya Rai herself ;)
Preeti, tats informative post.... im scared of Octopus!...... during my school day i hate the subject.....
Cheers!
:)
hey ZOONIE zeeeee....u have a cat and a fish tank too??..thats cool zeeee...i do have a octopus in my college but its dead...sorry:(....
i do read your posts dear but dont know wat to comment...i even read your 8 wishes for your kinda girl:)...
hey SUDEEP...whenever i go to himachal i will definetly meet him...:)...
Hi VISHNU...im scared of them too...but love to look at them from far off...:)...
Oh thats like watching a discovery channel... so informative...
am gonna save this post for my future kids ;-) lol
so much research for a science exhibition I thought ur doing a PhD ;-)
Oh my !!
i m reading it part by part.
are octopus and squids part of 'nutrition' curriculum?
hey PUNEET...thanks for the compliment....in schools we get bound in the fixed curriculum...and otherwise we dont touch these subjects....so this is the only way left i increase ma knowledge.....
HEY INCI VINCI....no they are not....it is one of my subject other than nutrition and chemistry..:)
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