Well-boat

They [the "Hollanders", that is, Dutch] have One Hundred Dogger-Boats, of One Hundred and Fifty Tuns a piece, or thereabouts: Seaven Hundred Pincks and Well-Boats, from Sixty to One Hundred Tuns a piece; which altogether fiſh upon the Coaſts of England and Scotland, for Cod and Ling only; [...]

Source: wiktionary

In our way we overtook a great Jonk that came from Palimbam, a Town on the Iſland Sumatra: [...] This Veſſel was of the Chineſe make, full of little Rooms or Partitions like our Well-boats, [...]

Source: wiktionary

[T]hough the people fiſhed ever ſo often, they could never find any ſigns of lobſters being in this part of the ſea: they were therefore continually brought in great wellboats from New England, where they are plentiful; but it happened that one of theſe wellboats broke in pieces near Hellgate, about ten Engliſh miles from New York, and all the lobſters in it got off. Since that time they have ſo multiplied in this part of the ſea, that they are now caught in the greateſt abundance.

Source: wiktionary

VIII. And it be further enacted by the Authority aforeſaid, That no Live Salmon, Salmon Trout, Turbot, Large Freſh Cod, Half Freſh Cod, Haddock, Seate, Freſh Ling, Soles or Whitings, ſhall at any Time after the Arrival thereof at the Nore as aforeſaid be put into any Well Boat or Store Boat from or out of any ſuch Fishing Ship, Sloop, Smack or other Fiſhing Veſſel or Veſſels as aforeſaid, in which the ſame ſhall have been brought to the Nore; [...]

Source: wiktionary