188
P. Thiriet et al.
Box 1: The nursery role of a kelp forest in New Zealand—from Jones
(1984)
In New Zealand, within the habitat composed by the canopy forming Phaeophyceae Ecklonia and Carpophyllum, Jones (1984) showed that mean juvenile
densities of Pseudolabrus celidotus (Labridae) increased exponentially with
the mean weight of algae per square meter. This relation was even stronger in
shallow (< 8 m) than in deep (> 8 m) areas (see graph). Besides, in the same
study, a macro-algal removal experiment resulted in a significantly lower juvenile fish recruitment (6 folds less juveniles per unit area in the cleared area
vs in the control area). It was confirmed by an increased recruitment observed
after the recovery of an algal forest over a previously barren rocky reef (6 folds
more intense).
P. Thiriet et al.
Box 1: The nursery role of a kelp forest in New Zealand—from Jones
(1984)
In New Zealand, within the habitat composed by the canopy forming Phaeophyceae Ecklonia and Carpophyllum, Jones (1984) showed that mean juvenile
densities of Pseudolabrus celidotus (Labridae) increased exponentially with
the mean weight of algae per square meter. This relation was even stronger in
shallow (< 8 m) than in deep (> 8 m) areas (see graph). Besides, in the same
study, a macro-algal removal experiment resulted in a significantly lower juvenile fish recruitment (6 folds less juveniles per unit area in the cleared area
vs in the control area). It was confirmed by an increased recruitment observed
after the recovery of an algal forest over a previously barren rocky reef (6 folds
more intense).