From MarineBiotech Infopages
Any quantitative estimate of the total mass of organimsms comprising all or part of a population or any other specified unit, or within a given area at a given time; measured as volume, mass or energy..
- Lincoln R., Boxshall G. and Clark P. (1998). A Dictionary of Ecology, Evolution and Systematics (2nd Ed). Cambridge University Press: Cambridge, (England). 361pp.