(Undated)--Leaseholders of New England wind energy ventures are announcing a new joint proposal.The companies - Equinor, Mayflower Wind, Orsted-Eversource and Vineyard Wind - are proposing to the U.S. Coast Guard a uniform turbine layout with one nautical mile spacing between turbines.The companies say the proposal is in response to feedback from key stakeholders.In response, the executive director of pro-fishing industry advocate Saving Seafood said many fishing industry leaders have concerns about this type of announcement before the Coast Guard finishes a study on potential safety effects of turbine spacing.