Site | Seawater | Sediment | ||||||
---|---|---|---|---|---|---|---|---|
T (°C) | S (PSU) | pH | EC (mS cm−1) | TOC (%) | MD (μm) | Sediment type | Sorting Index | |
I | 28.9 | 38.56 | 8 | 6.9 | 3.5 | 353 | medium sand | poorly sorted |
II | 28.5 | 43.1 | 8 | 5.3 | 3 | 296 | medium sand | poorly sorted |
III | 31.1 | 40.3 | 7.05 | 22 | 3 | 356 | medium sand | poorly sorted |
IV | 27.9 | 38.2 | 7.77 | 6.79 | 1 | 96 | very fine sand | moderately sorted |
V | 28.9 | 40.1 | 7.6 | 10.26 | 3.7 | 208 | fine sand | poorly sorted |
VI | 29.4 | 42.9 | 7.91 | 8.09 | 2.9 | 451 | medium sand | poorly sorted |
VII | 28.7 | 41.5 | 6.75 | 9.95 | 3.3 | 243 | fine sand | poorly sorted |
VIII | 28.5 | 39.3 | 7.45 | 10.1 | 2.5 | 229 | fine sand | poorly sorted |
IX | 32.1 | 43.6 | 7.3 | 9.9 | 3 | 150 | fine sand | poorly sorted |
X | 32.4 | 40.1 | 7.78 | 7.31 | 3.5 | 441 | medium sand | poorly sorted |
XI | 29.3 | 43.1 | 7.82 | 10.1 | 1.8 | 156 | fine sand | poorly sorted |
XII | 28.1 | 41.3 | 7.65 | 10.19 | 2.8 | 366 | medium sand | poorly sorted |
XIII | 29.8 | 41.1 | 7.91 | 8.9 | 2 | 350 | medium sand | poorly sorted |
XIV | 31.5 | 41.1 | 8.01 | 2.31 | 1.1 | 747 | coarse sand | moderately sorted |
XV | 31.2 | 42.1 | 7.61 | 11.65 | 1.9 | 183 | fine sand | poorly sorted |
XVI | 31.1 | 41.1 | 7.95 | 10.19 | 1.9 | 232 | fine sand | moderately sorted |
XVII | 33.2 | 41.3 | 7.87 | 6.79 | 1.3 | 224 | fine sand | moderately sorted |
XVIII | 36.2 | 42.1 | 7.91 | 6.49 | 1.7 | 197 | fine sand | poorly sorted |
XIX | 35.1 | 43.5 | 7.85 | 6.8 | 1.6 | 249 | fine sand | poorly sorted |
XX | 29.2 | 40.8 | 8.08 | 7.76 | 2.5 | 232 | fine sand | poorly sorted |
Order | Family | Genus | Total count | Relative abundance (%) | Feeding type |
---|---|---|---|---|---|
Enoplida | Ironidae | 1155 | 14.0 | 2a | |
86 | 1.0 | 2b | |||
Oxystominidae | 1336 | 16.2 | 1a | ||
Oncholaimidae | 85 | 1.0 | 2b | ||
71 | 0.9 | 2b | |||
Tripyloididae | 40 | 0.5 | 1b | ||
Aegialoalaimdae | 59 | 0.7 | 1a | ||
Chromadorida | Chromadoridae | 91 | 1.1 | 2a | |
63 | 0.8 | 2a | |||
Cyatholaimidae | 135 | 1.6 | 2a | ||
Selachinematidae | 49 | 0.6 | 2b | ||
Desmodoridae | 745 | 9.0 | 2a | ||
29 | 0.4 | 2a | |||
447 | 5.4 | 2a | |||
Leptolaimidae | 48 | 0.6 | 1a | ||
Microlaimidae | 1442 | 17.4 | 2a | ||
198 | 2.4 | 2a | |||
Desmoscolecidae | 17 | 0.2 | 1a | ||
Haliplectidae | 63 | 0.8 | 1a | ||
Monhysterida | Xyalidae | 49 | 0.6 | 1b | |
196 | 2.4 | 1a | |||
201 | 2.4 | 1b | |||
722 | 8.7 | 1b | |||
Linhomoeidae | 90 | 1.1 | 1b | ||
849 | 10.3 | 1a |
Area/Country | Densities (ind. 10 cm−2) | References |
---|---|---|
Minimum–Maximum (mean) | ||
Hunter River, south-eastern Australia | 63–12057 (225) | |
Hunter River, south-eastern Australia | 1–9596 (110) | |
Northeastern Australia | 57–2454 | |
Mangrove mudflats, Australia In the top 1 cm of |
470–5000 (1830) | |
Barwon estuary, Victoria, Australia | 250–8622 (2170) | |
Mngazana estuary, South Africa | 84–530 (246) | Dye (1983 a) |
New Caledonia | 70–5137 | |
West and east coast of Zanzibar, Africa | 205–5263 (1493) | |
West and east coast of Zanzibar, Africa | 271–656 | |
Gazi Bay, Kenya, Africa | 1986–6707 | |
Island of Santa Catarina, South Brazil | 77–1589 (448) | |
South Cuba | 36–245 | Lalana-Rueda & Gosselck (1980) |
Gulf of Batabano, Cuba | 5–594 (109) | |
West coast of Malaysia | 407–1109 (700) | |
Southeast coast of India | 234–890 | |
Northern Red Sea, Egypt | (343) | |
Sudanese coast of the Red Sea Intact mangrove |
(288) | |
Western side of the Red Sea, Egypt | 18–193 (109) | |
Saudi Arabian coast of the Red Sea | 119–1380 (643) | Present study |
Site | S | d | J’ | H’ (log) |
---|---|---|---|---|
I | 2 | 0.27 | 0.95 | 0.66 |
II | 1 | 0.00 | 0.00 | 0.00 |
III | 1 | 0.00 | 0.00 | 0.00 |
IV | 3 | 0.63 | 1.00 | 1.10 |
V | 2 | 0.35 | 0.95 | 0.66 |
VI | 3 | 0.54 | 1.00 | 1.10 |
VII | 3 | 0.59 | 0.99 | 1.09 |
VIII | 1 | 0.00 | 0.00 | 0.00 |
IX | 2 | 0.34 | 0.97 | 0.67 |
X | 4 | 0.91 | 0.98 | 1.36 |
XI | 2 | 0.32 | 0.97 | 0.68 |
XII | 10 | 1.96 | 0.98 | 2.26 |
XIII | 2 | 0.31 | 0.99 | 0.69 |
XIV | 3 | 0.55 | 0.98 | 1.08 |
XV | 2 | 0.37 | 0.94 | 0.65 |
XVI | 4 | 0.80 | 0.91 | 1.26 |
XVII | 11 | 2.15 | 0.98 | 2.36 |
XVIII | 10 | 2.00 | 0.98 | 2.25 |
XIX | 5 | 1.03 | 0.99 | 1.59 |
XX | 2 | 0.34 | 0.99 | 0.69 |
References | Area/Country | Densities (ind. 10 cm−2) Minimum–Maximum (mean) | % of total meiofauna | Number of families | Number of genera |
---|---|---|---|---|---|
Hunter River, south-eastern Australia | 63–11892 | 87–100 | 23 | 55 | |
Cape York, north-east Australia | 3–987 | – | (205 sp.) | ||
In the top 1 cm of |
Mangrove mudflats, Australia | 113–451 | – | 26 | 38 |
Mngazana estuary, South Africa | 62–411 | 80.4 | – | – | |
Gazi bay, Kenya | – | 54–95 | – | – | |
West-east coast of Zanzibar, Africa | 131–5210 | 64-99 | 30 | 94 | |
West-east coast of Zanzibar, Africa | 271–656 | 58–87 | 13 | 28 | |
Island of Santa Catarina, South Brazil | 196–811 | 85–94 | 28 | 86 | |
Pernambuco state, Northeastern Brazil | – | – | 25 | 73 | |
Gulf of Batabano, Cuba | 5–591 (104) | 33–100 (88) | – | – | |
Bay of Bengal, India | 35–280 | 50–67 | – | – | |
Southeast coast of India | 234–890 | 86–93 | 20 | 36 | |
Central west coast of India | – | – | 13 | 20 | |
Sundarbans, India-Bangladesh | – | – | 29 | 84 | |
Somerfield et al. (1988) | North-western coast of Malaysia | (122) | – | 32 | 85 |
West coast of Malaysia | 374–885 | 80–93 | – | 17 | |
Sudanese coast, Red Sea | 10–370 | 40–98 | 20 | 35 | |
Western side of the Red Sea, Egypt | 8–162 (73) | 42(–6784) | – | – | |
Present study | Saudi Arabian coast of the Red Sea | 72–1100 | 29–100 | 15 | 25 |
Location | Site No. | Latitude N | Longitude E | Remarks |
---|---|---|---|---|
Jazan | I | 16°25’6.85” | 42°45’49.08” | Fringing reef |
II | 16°41’54.15” | 42°43’1.78” | Inland lagoon (dead mangrove) | |
III | 16°43’54.71” | 42°42’29.12” | Inland lagoon (dead mangrove) | |
IV | 16°47’3.69” | 42°40’23.07” | Fringing reef (near a sewage outlet) | |
V | 17°3’3.16” | 42°27’8.85” | Fringing reef | |
Al-Birk | VI | 17°48’0.89” | 41°53’21.16” | Inland lagoon (fish farm outlet) |
VII | 17°57’9.17” | 41°41’10.91” | Fringing reef | |
VIII | 18°7’11.42” | 41°34’52.77” | Fringing reef | |
IX | 19°47’30.24” | 40°37’52.13” | Fringing reef | |
Al-Lith | X | 20°9’56.94” | 40°12’50.01” | Inland lagoon (fish farm outlet) |
Jeddah | XI | 21°16’8.74” | 39°7’34.40” | Fringing reef (sewage plant outlet) |
XII | 21°58’57.73” | 38°58’44.60” | Inland lagoon | |
XIII | 22°15’11.33” | 39°4’50.23” | Fringing reef | |
Rabigh | XIV | 22°52’50.29” | 38°56’33.66” | Inland lagoon |
XV | 22°51’3.09” | 38°57’35.99” | Inland lagoon | |
XVI | 23°8’10.01” | 38°47’47.27” | Inland lagoon (fish farm outlet) | |
XVII | 23°19’47.25” | 38°41’37.06” | Inland lagoon | |
Al-Wajh | XVIII | 5°34’39.25” | 36°58’13.98” | Inland lagoon |
XIX | 25°59’27.67” | 36°42’39.29” | Fringing reef | |
Duba | XX | 27°25’52.30” | 35°36’9.54” | Inland lagoon |
Parameter | Meio | Nema | Poly | Oligo | Turb | Cope | Ostr | Amph |
---|---|---|---|---|---|---|---|---|
Sand (%) | 0.675 Correlation is significant at the 0.01 level (2-tailed) |
0.591 Correlation is significant at the 0.01 level (2-tailed) |
0.39 | 0.29 | 0.34 | 0.614 Correlation is significant at the 0.01 level (2-tailed) |
0.24 | 0.06 |
VC sand | −0.13 | −0.11 | 0.03 | −0.30 | 0.13 | −0.22 | −0.26 | 0.12 |
CS sand | 0.32 | 0.24 | 0.26 | 0.00 | 0.39 | 0.37 | −0.10 | 0.10 |
M sand | −0.08 | −0.08 | −0.08 | −0.09 | −0.10 | 0.06 | 0.07 | 0.01 |
F sand | 0.38 | 0.34 | 0.09 | 0.40 | 0.13 | 0.38 | 0.492 Correlation is significant at the 0.05 level (2-tailed); |
−0.17 |
VF sand | −0.448 Correlation is significant at the 0.05 level (2-tailed); |
−0.35 | −0.23 | −0.09 | −0.502 Correlation is significant at the 0.05 level (2-tailed); |
−0.573 Correlation is significant at the 0.01 level (2-tailed) |
−0.28 | 0.01 |
Silt-clay | −0.675 Correlation is significant at the 0.01 level (2-tailed) |
−0.591 Correlation is significant at the 0.01 level (2-tailed) |
−0.39 | −0.29 | −0.34 | −0.614 Correlation is significant at the 0.01 level (2-tailed) |
−0.24 | −0.06 |
pH | 0.39 | 0.33 | 0.31 | 0.32 | 0.35 | 0.12 | 0.16 | 0.13 |
EC | −0.28 | −0.29 | −0.11 | −0.06 | −0.01 | −0.25 | 0.02 | −0.03 |
OC (%) | −0.38 | −0.39 | −0.19 | −0.19 | −0.01 | −0.23 | −0.13 | −0.11 |
Temperature | 0.17 | 0.31 | −0.10 | −0.25 | −0.09 | 0.08 | 0.06 | −0.08 |
Salinity | −0.02 | 0.03 | −0.13 | −0.11 | −0.21 | 0.10 | −0.02 | −0.02 |