Table 2.

Species’ OA concentration pairwise comparisons using post hoc Tukey test.

Species pairwise comparisons	z	p
N. lapillus–C. lampas	3.3	0.03
M. glacialis–G. umbilicalis	3.8	<0.01
M. galloprovincialis–G. umbilicalis	5.2	<0.001
N. lapillus–G. umbilicalis	4.7	<0.001
M. lineata–M. glacialis	−3.6	<0.01
M. turbinata–M. glacialis	−3.4	0.02
P. lividus–M. glacialis	−5.6	<0.001
P. intermedia–M. glacialis	−5.5	<0.001
M. galloprovincialis–M. lineata	4.8	<0.001
N. lapillus–M. lineata	4.6	<0.001
M. galloprovincialis–M. turbinata	4.1	<0.01
N. lapillus–M. turbinata	4.0	<0.01
P. lividus–M. galloprovincialis	−7.1	<0.001
P. intermedia–M. galloprovincialis	−6.4	<0.001
P. lividus–N. lapillus	−6.4	<0.001
P. intermedia–N. lapillus	−5.9	<0.001
P. intermedia–P. lividus	−0.6	<0.001