Explain Piranha Iridescense

[labworm]

Now Blue Fish have a set of choppers than can cause some damage if you are not careful.

I always enjoy playing a Blue Fish, giving him just the correct amount of drag so he can still pull out the line as I retrieve it.
Slowly I wear him down, but I never ignore him because he still can break free.

So if you going for Blues, take it from the labworm, I know how to land them.

 

[Texas Star]

I caught a dorado that looked like a jet propelled rainbow and when I pulled it out of the water the color just drained from it.

Hair, scales and feathers are analogous to each other in that the striations act as prisms to form the iridescent colors. That doesn't explain why people don't have iridescent hair though.

What sort of "dorado"? Some call the dolphin that. To me, the dorado ("golden one") is a salmonid that lives in South American rivers like the Rio de la Plata, between Brazil and Argentina.
Look them up; worth it. Said to be very hard fighters and quite tasty. An imposing fish.

I do understand that the dolphin (fish, not like Flipper) fades rapidly with death. It's mahi-mahi on menus, so people won't confuse it with the dolphin mammals.

 

[Texas Star]

Now Blue Fish have a set of choppers than can cause some damage if you are not careful.

I always enjoy playing a Blue Fish, giving him just the correct amount of drag so he can still pull out the line as I retrieve it.
Slowly I wear him down, but I never ignore him because he still can break free.

So if you going for Blues, take it from the labworm, I know how to land them.

Yes, I know the bluefish. Used to eat them at Red Lobster, but they haven't been there in years. I also miss the little langostino lobsters from Chile.

I know bluefish are so voracious they fill their stomachs with baitfish, then throw up and start all over. I've read about them attacking swimmers. A school of them is bad news in the water. But they're very good to eat.

 

[Texas Star]

It's referred to as bioluminescence. Lots of fish light up, glow and have reflective qualities. The generation of light by living organisms is pretty interesting, so...google is your buddy here. Lots and lots of info on the web.

We've all seen bioluminescence in fireflies. I don't think that's what I'm asking about.

I think the scales act as prisms. But I wonder why. It seems counterproductive, enabling other fish to see piranhas before they can strike. But it may be a warning to other piranhas about territory, or a mating attraction.

 

[labworm]

Get out of the water while surf casting, those Bluefish can be caught on all types of bait.

Usually I have run into schools averaging roughly 10 pounds, a 2 ounce plug (6-8 inches) works well because they have such big mouths.

A fresh 3 lb lobster stuffed with lobster meat, now that is some good eating, although it will cost a few dollars.

I'm getting hungry, maybe a run up to Essex MA this Sunday.

 

[Texas Star]

Get out of the water while surf casting, those Bluefish can be caught on all types of bait.

Usually I have run into schools averaging roughly 10 pounds, a 2 ounce plug (6-8 inches) works well because they have such big mouths.

A fresh 3 lb lobster stuffed with lobster meat, now that is some good eating, although it will cost a few dollars.

I'm getting hungry, maybe a run up to Essex MA this Sunday.

Aren't all lobsters stuffed with lobster meat? I've eaten a number, but don't really seek them out. They usually taste a trifle fishy to me, and I think of their diet.

Did you read, "Jaws"? Not in the movie, but I liked the description of how some restaurants fake serving real scallops. I think I've always gotten the real ones, and do like them. I've eaten fresh oysters, but prefer them in stews.

My paternal grandfather was fond of oyster stew. I guess I inherited the tendency from him. He also was the first to take me fishing.

 

[dcxplant]

And why in death does it fade?

I saw this when fishing for Dorado/Mahi Mahi/Dolphin fish.

I hauled in a huge bull off the coast of Loretto, MX trolling on the Sea of Cortez, my first, and I couldn't believe how beautiful it was!

After the captain's mate gaffed and brought him up, he whacked him in the head to kill him before going into the locker and I watched the color fade to half of what it was right in front of my eyes.

I felt terrible for killing such a beautiful fish, right up until I had some of him in a ceviche later that afternoon!!

Yummy! Best fish I've ever had.

 

[ladder13]

The wonders of nature, sometimes downright terrifying.

 

[labworm]

The wonders of nature, sometimes downright terrifying.

A woodpecker can beat its head against wood 20 times a second, in uninterrupted bursts of almost an hour,
it sets up vibrations in its skull that would probably kill any other bird.

Just call me smarty pants, not bad for copying the info from my "Can Elephants Swim" book.

Did I ever tell you about my drop line?

I wonder how many actually know what it is.

 

[ladder13]

A woodpecker can beat its head against wood 20 times a second, in uninterrupted bursts of almost an hour.
it sets up vibrations in its skull that would probably kill any other bird.

Just call me smarty pants, not bad for copying the info from my "Can Elephants Swim" book.

Did I ever tell you about my drop line?

I wonder how many actually know what it is.

Ahh, the wonders of nature.

 

[reddogge]

Another thing to ponder is a fish will loose its colors quickly in death but a duck's feathers will retain the color and iridescence forever.

 

[Old TexMex]

We've all seen bioluminescence in fireflies. I don't think that's what I'm asking about.

I think the scales act as prisms. But I wonder why. It seems counterproductive, enabling other fish to see piranhas before they can strike. But it may be a warning to other piranhas about territory, or a mating attraction.

I wasn't talking to you, I was answering labworms question, that's why I quoted his post and not yours.
Your question was just asked so you could tell us what you know. We get it, already.
Besides, you're mixed up; Fish use both iridescence and bioluminescence....but you already knew ALL about that. But just so you can confirm, the reflective iridescent and bioluminescent abilities are both protective camouflage ( mirrors seem to disappear under water) communication and as a perhaps unexplained result of stress. Marlin will often change from electric blue to flat black just before striking a baitfish, then when gaffed, will light up like a neon sign, then in death turn near gray.

 

[ChattanoogaPhil]

TS, don't let the guys bother you.

Pugsters likes to watch the glittery fish at Petco too.

 

[CAJUNLAWYER]

Another thing to ponder is a fish will loose its colors quickly in death but a duck's feathers will retain the color and iridescence forever.

That's because Ducks can fly long distances.

 

[Old TexMex]

A woodpecker can beat its head against wood 20 times a second, in uninterrupted bursts of almost an hour,
it sets up vibrations in its skull that would probably kill any other bird.

Just call me smarty pants, not bad for copying the info from my "Can Elephants Swim" book.

Did I ever tell you about my drop line?

I wonder how many actually know what it is.

I know this particular peckerwood can only hit his head against a tree maybe a couple times and I'm DONE....MAN that hurts...

 

[labworm]

I wasn't talking to you, I was answering labworms question, that's why I quoted his post and not yours.
Your question was just asked so you could tell us what you know. We get it, already.
Besides, your mixed up. Fish use both iridescence and bioluminescence....but you already knew ALL about that.

And I thank you for your response.

I was fishing at Plum Island, Newburyport MA.

A Nuclear Power plant is located in Seabrook, NH which is only 7 miles North from where I was.

So I guess some may understand why I got my rear end out of there that morning.

 

[rags]

Knowing what I know now, I have to ask, if a Blue Fish ate a Red Lobster would it turn Purple? (In the Amazon River Basin area of Brazil, of course...)

 

[BearBio]

OK:
I don't know on the prismatic effect of some fish (i.e. dorado/mahi mahi/dolphinfish). I would assume it is some kind of plastid or chromatophore within the cells. Much like how a chameleon changes its color.

The phosphorescence or bio-luminescence is caused by a form of marine algae called a dinoflagellate. Ironically, the compound is called luciferen (after Lucifer, which actually means "Bringer of Light"). It is also what causes "red tides". As a boy growing up in SoCal, my dad and I would go deep sea fishing (and later I'd go out by myself) and if we had time. we'd walk out on the beach (the waves would be lighting up as they hit the shore) and we could leave a trail of glowing footsteps in the wet sand. Some species of dinoflagellate cause "barracuda poisoning" (ciguatera) in tropical waters.

Cross-referencing the piranha bite, I was bitten by a barracuda on one of my fishing trips. Didn't even know it until I reached into the live bait well for an anchovy and the salt-water hit it.

NO, I am not spouting knowledge==just trying to answer the question. I do, because I have Asperger's, tend to over-relate.

 

[Old TexMex]

Knowing what I know now, I have to ask, if a Blue Fish ate a Red Lobster would it turn Purple? (In the Amazon River Basin area of Brazil, of course...)

Only if you were fishing with the Rajah of Salamar and Ernest Hemingway, and numerous well known gun magazine writers.

 

[labworm]

Knowing what I know now, I have to ask, if a Blue Fish ate a Red Lobster would it turn Purple? (In the Amazon River Basin area of Brazil, of course...)

Rare Lobster Found: Calico in Hampton - YouTube