North Shore lobstermen could benefit from a state grant awarded last week to Salem Sound Coastwatch to study the fouling of lobster traps by invasive species.The $24,509 in state funds, coupled with a matching $31,200, will be used to learn how glob-like tunicates now found in Massachusetts marine waters spread quickly, out-compete native species and cover existing structures, including fishing gear.”This project will expand monitoring of marine invasive species to deeper waters of Salem Sound and will focus on evaluating if these species are fouling fishing gear,” said Catherine Williams, a spokesman for Energy and Environmental Affairs (EEA) Secretary Ian Bowles.”Through partnerships with commercial lobstermen, fouling organisms on lobster traps within Salem Sound will be identified and cataloged.”The public and commercial fishing industry will also be provided information on how to address this problem, she said. The Salem grant was one of four announced Wednesday to protect coastal habitat, totaling $102,000. The funded projects include programs to monitor and manage invasive species on the North Shore and to restore water quality and natural river flow to sites on Cape Cod. The grants are being matched by $94,329 in state, private or municipal funds, further extending the power of the grant program, Williams said.According to Bowles, “These grants will help communities secure large and lasting environmental results and continue their important work of conserving precious habitats for wildlife and plants up and down the Massachusetts coastline.”