Trophic behaviour

The overall extent of seep communities in the deep ocean is not well known because margin environments are incompletely explored (Tunnicliffe etal., 2003). Despite this lack of detailed information, Sibuet and Olu (1998) established patterns of biodiversity, biogeography, trophic behaviour and fluid dependence of seep biological communities. 

Negre-Sadargues, G., Segonzac, M., and Castillo, R. (1997) Carotenoid pigments and trophic behaviour of Cmstacea from the Snake Pit hydrothermal area (Mid-Atlantic Ridge, 23°N). Cah. Biol. Mar., 38,134—135. 

This phrase is understood as a process which maintains a population or community as an entity (Khailov, 1971). Particular metabolites act as signals , either attracting or repelling other fish, while others have trophic significance. The former have already been given close consideration in a number of books on behaviour and ethology, so need no further comment here. The latter captured the attention of researchers relatively recently. It was found that the uptake of metabolic products is an important factor that cements aquatic ecosystems, from plants to lower animals (protozoans, coelenterates, molluscs and some others). Metabolites that play a trophic role are inorganic... 

The Antarctic food chains are unique, both on land and in the sea. It is not therefore possible to directly transfer temperate data and models of toxicity to Antarctica since several of the trophic levels are missing, many organisms live for much longer than in temperate regions and grow much more slowly. In addition it appears that for many compounds little is known of their behaviour (such as chemical speciation, distribution and life time in the environment) at very low temperatures. Research is essential to fill both of these gaps. 

Although a number of studies have been devoted to the purely trophic relationship between phytoplankton and zooplankton, there are few data to be found concerning the behaviour of, and competition between, these two groups through free chemical substances. 

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