@article{631155, recid = {631155}, author = {Helfman, Gene S.}, title = {Fish conservation : a guide to understanding and restoring global aquatic biodiversity and fishery resources /}, publisher = {Island Press,}, address = {Washington :}, pages = {xiv, 584 p. :}, year = {2007}, url = {http://library.usi.edu/record/631155}, }