The theme of the excerpt is overcoming obstacles and difficulties. The author establishes the need to be brave and courageous despite sadness and despair. At the beginning of the fragment the author states the challenging and painful situation the group has to face as well as the slight chances of survival of the pilot whale. This description makes them feel frustrated and sad about the apparent inevitable consequences. Despite this, as the passages continue, Mr. Manning encourages the group to stay calm, to be positive and work hard to overcome this appalling situation.