from coral habitats along the southeastern Rockall Bank
slope, Duineveld et al. (2007) noted a remarkable paucity
of deposit-feeders compared to abyssal communities and
a short trophic length of the food chain dominated by filter-feeders, added by predators and scavengers. The major
food source is from suspended particles. However, our
present knowledge is limited if not contradictory as to
what extent zooplankton forms a significant part of the
suspended load (see Duineveld et al., 2007 for discussion).
Summary
In the recent years, knowledge on the general distribution,
biology, geology, and hydrography has generated a wealth
of information on the subject of cold-water coral reefs and
their associated communities through the application of
state-of-the-art marine instrumentation (Roberts et al.,
2009a). Cold-water coral reefs are formed by a small
group of colonial azooxanthellate scleractinians as biological engineers and thereby providing a great variety of
habitats attractive for a diverse associated community.
These framework-constructing corals trap suspended sedimentary particles to generate a three-dimensional structure within an astonishingly short time and at rates
comparable to some tropical shallow-water coral reef
systems.
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