English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

In the Caribbean, recruitment of a number of fishes has been found to be low at the edges of patch reefs, intermediate in the grazed halo and highest in dense seagrass. This has been attributed in part to the activities of reef-based predators. We presented small surgeonfishes held in clear glass bottles at 4 distances up to 20 m from the edges of reefs and found that the rate of encounters with predators (and aggressive territorial herbivores) was high at the reef edges, but encounter rates in the halo were much lower and similar to those in the dense seagrass. The low rate of interactions even 2 m from the reef edge implies that reef-based predators avoid the halo also, presumably because of the risk to themselves of predation from still larger piscivores. This implies that the pattern of recruitment is due to avoidance by recruits rather than the depredations of reef-based predators. Many surgeonfishes recruiting to experimental structures in the seagrass were migrant juveniles rather than settling larvae and we suggest that the gradient in recrutment of surgeonfishes reflects proximity to preferred post-settlement habitats.

Grazing halos and predation on juvenile Caribbean surgeonfishes