Table 1 Treatments used in settlement assays with crown-of-thorns starfish larvae (n = 12 independent and randomised wells for each treatment).

From: Induction of larval settlement in crown-of-thorns starfish is not mediated by conspecific cues

Treatment

Description

Experiment 1

 1.1 1-m (alg)

1-month old herbivorous juvenile (coralline algae spp.)

 1.2 1-y (alg)

1-year old herbivorous juvenile (coralline algae spp.)

 1.3 1-y (cor)

1 year-old corallivorous juvenile (Acropora spp.)

 1.4 csw 1-m (alg)

fsw conditioned with 1-month old herbivorous juveniles (1.1)

 1.5 csw 1-y (alg)

fsw conditioned with 1-year old herbivorous juveniles (1.2)

 1.6 csw 1-y (cor)

fsw conditioned with 1-year old corallivorous juveniles (1.3)

 1.7 L. pro

0.5 × 0.5 cm live coralline algae chip (Lithothamnion cf. proliferum) (positive control)

 1.8 L. pro + csw

Herbivorous 1-y-o juvenile conditioned fsw (1.5) added to coralline algae chip (1.7)

 1.9 fsw

Filtered seawater (negative control)

Experiment 2

 2.1 tube foot

Adult tube foot obtained from single 20 cm Ø male

 2.2 spine

Adult spine piece (1.5 cm length) obtained from single 20 cm Ø male

 2.3 csw

Conditioned seawater from 1200 L flow-through tank containing 12 males (15–35 cm Ø)

 2.4 L. pro

0.5 × 0.5 cm live coralline algae chip (Lithothamnion cf. proliferum) (positive control)

 2.5 fsw

Filtered seawater (negative control)