Identification of Fine-Scale Marine Benthic Ecoclines by Multiple Parallel Ordination
Table 9
Species associated with the negative (Neg) and positive (Pos) extremes of DCA axes 1 and 2, with indication of feeding strategy, species loading on axes (“Load” column), and raw total abundance for each species (“Abund” column). Only species with DCA. species loadings with absolute values >1.25 and with a raw total abundance above 10 were chosen.
Axis
End
Load
Species
Su
SD
SSD
G
Sc
P
Abund
DCA1
Neg
−2.00
Thyasira gouldi (M)
x
x
17
−1.96
Sige fusigera (P)
x
x
13
−1.81
Pista lornensis (P)
x
18
−1.47
Thyasira flexuosa (M)
x
x
206
−1.46
Melinna cristata (P)
x
66
−1.36
Thyasira sarsi (M)
x
x
207
−1.34
Ennucula tenuis (M)
x
2216
−1.26
Spiophanes kroyeri (P)
x
x
2389
Pos
2.78
Lepeta caeca (M)
x
x
46
2.59
Hiatella arctica (M)
x
x
12
2.46
Scoloplos armiger (P)
x
41
1.94
Pseudopolydora pauchibranchiata (P)
x
x
746
1.76
Corbula gibba (M)
x
132
1.75
Glycera lapidum (P)
x
x
53
1.66
Eupolymnia nebulosa (P)
x
15
1.61
Amphiura chiajei (E)
x
x
28
1.58
Pseudamussium peslutrae (M)
x
19
1.44
Ophiocten affinis (E)
x
105
1.41
Melinna elisabethae (P)
x
x
54
1.31
Anobothrus gracilis (P)
x
381
DCA2
Neg
−3.38
Scoloplos armiger (P)
x
41
−1.79
Astarte elliptica (M)
x
19
−1.71
Macoma calcarea (M)
x
x
x
70
−1.65
Aphrodita aculeata (P)
x
24
−1.56
Ophiura albida (E)
x
x
x
23
−1.35
Lepeta caeca (M)
x
x
46
Pos
4.81
Dipolydora coeca (P)
x
x
11
1.77
Amphicteis gunneri (P)
x
x
11
1.65
Amphiura chiajei (E)
x
x
28
1.59
Phyllodoce rosea (P)
x
12
1.54
Streblosoma bairdi (P)
x
x
21
1.38
Corbula gibba (M)
x
132
Feeding strategies: Su: suspension; SD: surface deposit; SSD: subsurface deposit; G: grazer; Sc: scavenger; P: predator. Taxon: E: echinoderm; M: mollusca; P: polychaeta. Bold symbols indicate the feeding strategy that species with multiple feeding strategies have the highest affinity for. Data on feeding strategy collected from the Norwegian Institute of Water Research's Biological Traits Database [75] and World Register of Marine Species [76].
