@book{bhlpg9005470, title = {NOAA technical report NMFS CIRC }, volume = {no. 440 (1981)}, url = {https://www.biodiversitylibrary.org/page/9005470}, publisher = {U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service}, author = {United States. National Marine Fisheries Service. }, year = {1981}, pages = {Page 49}, }