Table 3. Elements concentrations in sargasso morphotypes.
Median and range (in parenthesis) of elements (ppm DW) in three sargasso species/morphotypes collected from eight localities along the Mexican Caribbean coast in 2018–2019. P values show summary of statistical analyses using Kruskal–Wallis H test (bold if significant) and the last column shows results of multiple comparison test.
| Element | a) S. fluitansIII ( n = 24) |
b) S. natansI ( n = 24) |
c) S. natansVIII ( n = 11) |
P | Multiple comparison test |
|---|---|---|---|---|---|
| Al | 221 (<LOD-392) |
198 (<LOD-500) |
<LOD (<LOD-327) |
0.7341 | |
| As | 59 (34–172) |
55 (32–172) |
123 (24–145) |
0.0213 | c >b |
| Ca | 76,727 (46,599–115,260) |
81,965 (37,260–136,146) |
43,289 (23,723–75,849) |
0.0013 | (a = b) >c |
| Cl | 21,487 (1,831–46,502) |
10,122 (747–46,485) |
32,086 (2,279–53,101) |
0.0111 | c >b |
| K | 19,466 (3,620–44,280) |
14,309 (1,990–39,642) |
32,900 (4,902–46,002) |
0.0121 | c >b |
| Mg | 6,376 (2,062–12,325) |
6,385 (2,062–12,949) |
6,883 (2,062–13,662) |
0.5990 | |
| Mn | 70 (51–112) |
89 (52–139) |
56 (40–135) |
0.0019 | b >(a = c) |
| P | 336 (229–401) |
328 (262–394) |
300 (228–350) |
0.0590 | |
| Rb | 60 (32–102) |
51 (30–143) |
67 (48–120) |
0.0071 | c >b |
| S | 14,341 (11,328–24,773) |
12,776 (9,462–21,170) |
16,231 (12,449–19,500) |
0.1370 | |
| Si | 1,861 (927–2,877) |
2,095 (696–2,564) |
1,049 (447–2,135) |
0.0009 | (a = b) >c |
| Sr | 1,934 (1,641–2,395) |
1,876 (1,605–2,564) |
1,793 (1,633–2,362) |
0.4375 | |
| Th | 10 (5–17) |
8 (6–23) |
9 (8–20) |
0.3021 | |
| U | 22 (11–48) |
23 (12–47) |
27 (16–45) |
0.2321 |
Notes.
LOD, limit of detection.