What fishing equipment does the old man use?

From the text:

When they reached the old man’s shack the boy took the rolls of line in the basket and the harpoon and gaff and the old man carried the mast with the furled sail on his shoulder.

“So do I,” the boy said. “Now I must get your sardines and mine and your fresh baits. He brings our gear himself. He never wants anyone to carry anything.”