Fish Stocks Major Adaptations of Fishes

Glossary Biomass Collective weight or mass of all the members of a given population or stock at a given time, or, on the average, over a certain time period. Bioquads Occurrence record of organisms, serving as key units for biodiversity research and consisting of four elements (species names, location, time, and source). Catches The fish (or other aquatic organisms) of a given stock killed during a certain period by the operation of fishing gear. This definition implies that fish not landed, that is, discarded at sea, or killed by lost gear (ghost fishing), should be counted as part of the catch of a fishery. Ecosystem Area where a set of species interact in characteristic fashion, and generate among them biomass