Subsea technology developer Sonardyne International Ltd. said it has acquired maritime and marine science technology specialist Chelsea Technologies Group Ltd. as part of a long-term growth strategy that includes market diversification.In acquiring Chelsea (also known as CTG), Sonardyne said it looks to strengthen its presence in the maritime, marine and ocean science sectors and create new opportunities in the water environmental, defense and process control markets. Chelsea will gain access to Sonardyne’s considerable research…