epifauna


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Related to epifauna: faunas

epifauna

[′ep·ə‚fȯn·ə]
(zoology)
Benthic fauna that live on a surface, such as the sea floor, other organisms, or objects.
References in periodicals archive ?
Using the "flying array" a range of epifauna were enumerated from flatfishes on the sandy plains in the north of the channel to crustaceans and bryozoans on the heterogeneous reef habitat in the main channel.
Los materiales arqueomalacologicos, que se encuentran depositados en el Centro de Investigacion y Museo de Altamira, se estudian desde varios puntos de vista: se clasifican los restos a nivel de especie; se analizan las alteraciones que poseen, tanto las existentes en las conchas antes de ser recogidas por los grupos humanos (erosion marina, epifauna), como las provocadas por ellos (huellas de fuego, de trabajo, fragmentacion), asi como otras modificaciones en el material una vez que ha sido enterrado (precipitacion de carbonato calcico, presion del sedimento); y se realizan analisis biometricos en las especies mas abundantes (Patella vulgata y Littorina littorea), con el fin de saber si existio una seleccion de tamano de los animales vivos.
Considerando un deposito de basuras al lecho marino, el elemento mas afectado en primer lugar es el impacto visual, el cual no solo afecta el fondo mismo sino que tambien al ver la pesca acompanada de todos los desechos que se han arrojado a este y luego, dependiendo de la cantidad, vendrian las implicaciones para la epifauna y endofauna en todos sus procesos, entendiendo que muchos de ellos son bases o elementos primarios de la cadena alimenticia.
The polychaete worm Spirorbis is abundant in a single, small, grey mud-filled channel at 352 m in the measured section, where the epifauna densely adheres to drifted cordaitalean trunks (see below).
Fishery managers were concerned about the effects of fishing in areas with emergent epifauna, particularly corals and sponges that may be vulnerable to fishing impacts.
Total obliteration of kinematically produced aqueous primary structures is consistent with high aerobic levels in the water column and within the upper part of the sedimentary column as attested by the rich epifauna (Brenchley and Harper, 1998).
The objectives of this project were to determine if: 1) bioaccumulation of copper, cadmium, and lead occurs in seagrass, epiphytes, and epifauna, 2) metal levels are higher in samples from a more impacted site, and 3) trophic transfer of copper occurs from epiphytes to snails in the laboratory.
An example of a pre-listening activity to prepare for a video on marine geology might be: How many of the following can you define: epifauna, sesile, crevices, infauna, substrate, planktonic, lecithotrophic, demersal, foraminiferan protozoans, macrofauna, meiofauna, abyssal plain, continental shelf, oscillate, flotsam and jetsam.
Bottom-tending mobile gear reduces habitat complexity by (1) removing emergent epifauna; (2) smoothing sedimentary bedforms; and (3) removing taxa that produce structure (Auster et al.
During the winter and early spring, seaweed assemblages on hard substrata support very high densities of mobile epifauna, dominated by the suspension-feeding amphipods Caprella penantis and Jassa marmorata (formerly J.
High tracer enrichment in subtidal epifauna.--Whereas the rapid, high-level tracer enrichment in zooplankton and planktivorous fish in the food web of the water column was a predicted result of the tracer amendment, a similar response was not anticipated in the subtidal benthos.
Measurements of short-term turnover of epifauna within seagrass beds using an in situ staining method.