Answer:
True
Step-by-step explanation:
In bottom trawling a large sized net with heavy weight is dragged across the sea floor to collect everything that comes up in its path. Sometimes in this practice, along with targeted species some unwanted species like old coral species get entrapped which are very essential for the marine ecosystem . Not only corals, all living beings coming in way of net are destroyed thereby leading to habitat destruction which lead to the permanent marine ecosystem damage.