Local Differences in the Body Proportions of the Lobster, Homarus americanus

The claws of males and the width and depth of abdomen of females increase at a higher rate than body length with approaching sexual maturity. Consequently for lobsters over 20 cm. in length males possess claws relatively larger and females an abdomen relatively wider and deeper in an area such as that near Pointe du Chene where sexual maturity occurs at about 20 cm. than in that near Grand Manan where lobsters only become sexually mature at about 34 cm.