Hard clam aquaculture pen Hard clam aquaculture pen Illustration of hard clam aquaculture pen aquaculture, fishing, industry, hard, clams, pens, harvest, cultivation, farming 2008-08-14 image/svg+xml Hard clam aquaculture pen 2008-08-14 Integration and Application Network https://ian.umces.edu/media-library/hard-clam-aquaculture-pen/ https://ian.umces.edu/media-library/hard-clam-aquaculture-pen/ en-US aquaculture, fishing, industry, hard, clams, pens, harvest, cultivation, farming Illustration of hard clam aquaculture pen