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Thread: Friday Fish Factoid - #2
02-22-2014, 03:54 AM #1
Friday Fish Factoid - #2
This may seem a bit late.. but its still Friday here! (I've actually had this one since last Friday, was reminded yesterday and then got all caught up in something else so... sorry its a wee later)
Today's Factoid is about Sequential Hermaphroditism (And Clownfish... and maybe some interesting bits about Nemo...)
While it only happens rarely in freshwater fish, its not very uncommon for marine fish to change from one gender to the other over the course of their lifetime. The most commonly seen example in aquariums is the Clownfish.
All clownfish are born as males.
In a hosted anemone colony there is One Female, One Male that is her mate and any other clownfish are immature males. Should the female die, or be removed from the colony, then the largest male(who was her mate) changes gender into a female. The next largest/dominant immature male then matures and becomes the new Female's mate.
Now here's the interesting bit as it relates to Finding Nemo.... (Spoiler warning if you really haven't seen the film, then don't read below)
When Nemo's mother was killed. Nemo's father would have changed into a female, and Nemo, being the only immature male we see left in the colony would then have become the mature breeding male.
02-22-2014, 04:20 AM #2
This is a very disturbing take on that film. I don't think I can look Nemo in the eye again.
02-22-2014, 04:35 AM #3
you have truly ruined finding nemo forever for meCurrent tanks:
37G FW - 3 Pearl Gourami, 4 Black Mollies, approximately 20+ Molly Fry, 5 Assassin Snails | 10G Planted FW - 14 Molly Fry, rocks, DW and an Anubias Nana - journal
"We come from the land of the ice and snow" | "I reject your reality and substitute my own" - Adam Savage | What part of "Ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn" don't you understand?
How to cycle without fishies!
02-22-2014, 04:36 AM #4
That's messed up.
02-22-2014, 06:08 AM #5
02-22-2014, 10:57 AM #6
LOL, you took that one in a unexpected direction
This can also be common from some types of Anthias as wellIf you take your time to do the research FIRST, you can successfully set-up and keep ANY type of aquarium with ease.
"Not using a quarantine tank is like playing Russian roulette. Nobody wins the game, some people just get to play longer than others." - Anthony Calfo
Fishless Cycle Cycling with Fish Marine Aquarium Info [URL="http://saltwater.aquaticcommunity.com/"]
02-22-2014, 03:52 PM #7
02-22-2014, 04:50 PM #8
I wonder....doesn't that lead to inbreeding? Or incest if you must, lol. Do other fish join the group as immature males? Does anyone know?20 gallon with a male betta, neons, glowlights, and red cherry shrimp. (work in progess) Recently added a few LIVE plants and driftwood, Woooohoooo!
02-22-2014, 05:02 PM #9
That is a great question and one I hadn't looked at... so I just did.
It appears that the young males (Nemo if you will) leave their home anemone when they are still immature and go looking for a new colony where they hope to move up the ranks to eventually be a breeding male. Based on how many other immature males are in line, he may or may not ever fully mature into a breeding male.
So to revise the above scenario.. Nemo's Dad still becomes female, but one of Nemo's "uncles" *wink*nudge*wink* would have been the largest immature male that would finally get his w̶i̶n̶g̶s̶ sexual maturity, and Nemo would have left home to join up with another family to make winky eyes at the mated pair and any males ahead of him in line in hopes that someday he would have the privilege of fertilizing eggs and being a house husband.
02-22-2014, 05:44 PM #10
That's very interesting... And creepy.Don't poke the crazy