Spiny Dogfish Shark (IMAGE) University of New Hampshire Caption Spiny dogfish sharks have experienced changes in their growth rates in the Gulf of Maine during the past 20 years, according to UNH researchers. Credit Rebecca Zeiber, N.H. Sea Grant Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.