gill

The floor of the mobula ray's mouth is lined on either side with parallel, comb-like structures, called plates, that siphon water into the ray's gills.

The fishing practices, including trawling and the use of gill and seine nets, were shown to cause physical pressures such as abrasion, smothering, siltation and total habitat loss.

But its wormy shape gives it the ability to swim right into the gills of fish, where it drinks its fill of blood.

Instead of having gill covers like most other fish, moral eels breathe by opening and closing their mouths, appearing as if they’re gasping for breath.

NRW said Samuel deliberately used a large spinning bait with a barbed treble hook, and when the fish was examined by the officer the lure was still lodged deep in its throat and gill rackers.