Definition: The fourth post-naupliar life stage of a copepod. All copepodid stages are characterised by two pairs of unsegmented swimming appendages, and an unsegmented "hind-body" comprising the thorax and the abdomen. (http://en.wikipedia.org/wiki/Copepodid#Copepoda)
Definition: In population biology, the generation time is a quantity that reflects the average time between two consecutive generations. Reciprocal of Generation Frequency
Definition: An aquatic biome that comprises systems of open-ocean and unprotected coastal habitats, characterized by exposure to wave action, tidal fluctuation, and ocean currents as well as systems that largely resemble these. Water in the marine biome is generally within the salinity range of seawater: 30 to 38 ppt.
Definition: A group of species that exploit the same food resources, and/or use the same feeding or foraging methods. http://en.wikipedia.org/wiki/Guild_(ecology)
