sailfish gill parasitical fishes

 No pictures for this, but i was swimminmg a sail alonside when I noticed a white tail hanging out from his gill plate. Pulled on it, and a pure white, soft-bodied fish slid out, perhaps 75 mm in length. Flattened body with mouth set under. He slid off the body and was gone. As we continued to swim the fish, who eventually released well, the same thing happened again. what would they be, and how many could a sail support without ill-effects? Assuming they latch onto blood-rich  membranes in the gill area to feed.


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Not baby remoras

Thu, 2015-07-23 21:33

thats what it sounds like if the were stuck on  and were easy enough to pull off

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robert1979's picture

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 was it like this? 

Thu, 2015-07-23 22:06

 was it like this? 

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Quite often see them on

Thu, 2015-07-23 23:55

Quite often see them on little bills. Not always in the gills. Using seem to bother them at all. More like a remora type fish. They don't embed themselves. 

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Brucesta's picture

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i'm like dodgy i reckon every

Fri, 2015-07-24 08:26

i'm like dodgy i reckon every 3rd fish or so has one on them and they just look like a baby remora

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ranmar850's picture

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  was it like this?     Yep,

Fri, 2015-07-24 08:34

  was it like this?     Yep, thats them, definitely not a baby remora. They didn't seem to want to hang on once they were out of the gill area, just slipped back and fell off.

Glenn Moore's picture

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Remora

Thu, 2015-07-30 13:24

 This is definately a Remora.  There are eight species of Remora/Suckerfish, but one in particular specialises on billfishes - Spearfish Remora Remora brachyptera.  That would be my guess. 

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ranmar850's picture

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Remora

Fri, 2015-07-31 11:27

 Referring to  Rogers and Swainstons reference book, I see that the common species we refer to as Remora is actually the Slender Suckerfish Echeneis naucrates . I didn't realise there were so many species. This one normally resides within the mouth/gill cavity? Neither of them appeared keen on hanging on to the external surace of the sail as he was being swum for release, after they had appeared from under the gill plate.