Which species are affected (netted and killed) by some of the yellowfin tuna industries?
Mainly spotted and spinner dolphins. Because yellowfin tuna associate with these dolphin species, fisherman encircle the dolphins with purse-seine nets in order to capture the tuna below. The problem arises when either the dolphins get entangled in the nets and drown or when calves get seperated from their mothers. To what length to bottlenose dolphins grow? Tursiops truncatus can reach 3-4 metres in length. The Monkey Mia dolphins tend to average about 2 metres. How much do bottlenose dolphins weigh? On average, they weigh 200kgs (440lbs.), with a maximum of one extraordinary weighing in at 650kgs (1430lbs.) The Monkey Mia dolphins probably weigh much less – around 100kgs. How long do bottlenose dolphins live? Wild bottlenose dolphin females can live into their late forties. Male dolphins typically do not live as long as females. The oldest reported male dolphin was in his mid-thirties. Dolphins can be aged by counting the rings inside their teeth. Holeyfin was approximately 35 years
