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The salmon fishery of the Penobscot basin is carried on with
practically a single type of apparatus, namely, the brush weir. In
most parts of the region this trap is used in the same form that it
had in the primitive days of the fishery, but in some sections the
weir has undergone evolution into a combination brush and twine trap,
and in places into a trap made wholly of netting.

Some of the types of salmon nets used in this region are illustrated
and described by the accompanying figures. In addition to these, which
are wholly or partly of brush, a common apparatus is the floating
trap, constructed entirely of twine, such as is now generally employed
in the New England States. This is the only salmon net in use at
Islesboro and in some other sections. The local and individual
variations in the form of the nets depend on the topography of the
bottom and shore and the habits of the salmon, and are the result of
long experience.

The fishing begins as soon as the ice moves out in spring and
continues until some time in July. Fish are rarely taken before
the last two weeks in Apri