(1) Although the crew reckoned it was a poor day, we still caught two good sailfish, a white marlin and a barracuda.

(2) The riskiest fish are large and predatory such as tuna, marlin and swordfish.

(3) Billfish fall into four groups, treated under marlin , sailfish, spearfish, and swordfish.

(4) The blue marlin and its cousins, the white marlin , swordfish and sailfish, bring up the rear.

(5) In turn, the squid is preyed upon by large fish such as marlin and swordfish, and it's a main staple of sperm whales.