Seem to recall these lines (Iliad 24.80-82) being quoted in Plato’s Ion…? But they also leap out at one anyway.
ἣ δὲ μολυβδαίνῃ ἰκέλη ἐς βυσσὸν ὄρουσεν,
ἥ τε κατ᾽ ἀγραύλοιο βοὸς κέρας ἐμβεβαυῖα
ἔρχεται ὠμηστῇσιν ἐπ᾽ ἰχθύσι κῆρα φέρουσα.
The fish hook “brings fate to the flesh-eating fish.” The only time I can think of fish feasting on flesh is book 21, in which they set upon Astropalaios (who has been killed by Achilles and tossed in the river) and start eating the fat around his kidneys. In this instance, however, it is probably less a statement about the fishes than it is about Astropalaios, who is the grandson of a river, being ironically mistreated by a river’s inhabitants.
.i`` * ^ / . . . . . ` `~ 