Mackerel Fishermen, Maine 1891 (IMAGE) University of Massachusetts Amherst Caption Penobscot Bay fishermen cleaning mackerel near their saltwater farm. The shore mackerel fishery documented in Alexander and colleagues' paper lasted for over 100 years. Credit NOAA Library, Silver Spring, Md. 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.