It spawns at a distance from the shore, and its eggs are buoyant, like those of many other marine fishes and unlike those of the herring, which are adhesive and demersal, i.e.
When that has been done (it has been achieved by the present writer in the case of the sea fish Cottus with demersal eggs,) it would be possible to deposit the young fish in suitable localities on a large scale, with a reasonable prospect of influencing the local abundance of the s p ecies of fish in question.
A mixed demersal trawl How are demersal trawl How are Demersal Fish Caught?
The majority of trawl vessels directly target Nephrops but they are also taken as by catch inthe demersal fishery.
A mixed demersal trawl How are Demersal Fish Caught?