Habitat structure is more important than nutrient supply in modifying mussel bed assemblage in an upwelling area of the Peruvian coast

Table 3 Results of t-tests on most important differentiators and functional groups in mussel transplant experiment

	By cm² of total shell area	By cm³ of gap
	t-Value	t-Value
Differentiators
Jehlius cirratus	−3.12**	−1.75
Semimytilus algosus	1.17	2.02
Pseudonereis gallapagensis	–	2.77**
Functional groups
Grazers	−0.15	3.74**
Predators/scavengers	0.53	2.7**
Suspension-feeders	−1.58	0.58
Mobile	−0.09	4.13**
Sessile	−1.58	0.57
Total abundance	−1.38	2.1

ISSN: 1438-3888