Table 4. ALOHA and Km3 oceanographic data.
North Pacific ALOHA | Mediterranean Km3 | |||||||
coordinates | 22°45′N, 158°W | 36°30′N, 15°40′E | ||||||
max.depth (m) | 4800 | 3243 | ||||||
depth (m) | 10 | 70 | 130 | 200 | 500 | 770 | 4000 | 3010 |
Sampling Time | Oct. 7th 2002 | Oct. 7th 2002 | Oct. 6th 2002 | Oct. 6th 2002 | Oct. 6th 2002 | Dec. 21st 2003 | Dec. 21st 2003 | Nov. 17th 2004 |
Temp. (°C) | 26.40 (24.83±1.27)* | 24.93 (23.58±1.00)* | 22.19 (21.37±0.96)* | 18.53 (18.39±1.29)* | 7.25 (7.22±0.44)* | 4.78 (4.86±0.21)* | 1.46 (1.46±0.01)* | 13.93 (13.80±0.05)* |
Salinity (PSU) | 35.08 (35.05±0.21)* | 35.21 (35.17±0.16)* | 35.31 (35.20±0.10)* | 35.04 (34.96±0.18)* | 34.07 (34.06±0.03)* | 34.32 (34.32±0.04)* | 34.69 (34.69±0.00)* | 38.74 (38.69±0.03)* |
Chl (μg/Kg) | 0.08 (0.08±0.03)* | 0.18 (0.15±0.05)* | 0.10 (0.15±0.06)* | 0.02 (0.02±0.02)* | ND | ND | ND | ND |
DOC (μM/Kg) | 78 (90.6±14.3)* | 79 (81.4±11.3)* | 69 (75.2±9.1)* | 63 (60.4±9.8)* | 47 (47.8±6.3)* | 39.9 (41.5±4.4)* | 37.5 (42.3±4.9)* | 54.2±5.85* |
Oxygen (μM/Kg) | 204.6 (209.3±4.5)* | 217.4 (215.8±5.4)* | 204.9 (206.6±6.2)* | 198.8 (197.6±7.1)* | 118.0 (120.5±18.3)* | 32.2 (27.9±4.1)* | 147.8 (147.8±1.3)* | 203.7 (202.66±1.2)* |
DIP (nmol/Kg) | 41.0 (56.0±33.7)* | 16 (43.1±25.1)* | 66.2 (106.0±49.7)* | 274.2±109.1* | 2153 (2051±175.7)* | 3070 (3000±47.1)* | 2558 (2507±19)* | 159.0±22.6* |
N+N (nmol/Kg) | 1.0 (2.6±3.7)* | 1.3 (14.7±60.3)* | 284.8 (282.9±270.2)* | 1161.9±762.5* | 28850 (28460±2210)* | 41890 (40940±500)* | 36560 (35970±290)* | 4706±133.3* |
SLCA (μl/Kg) | 1.30±0.37* | 1.34±0.37* | 1.72±0.56* | 5.31±0.74* | 45.37±5.75* | 92.06±4.08* | 160* | 8.32±0.24* |
HPP (cell×104 ml−1) | 30.2±16.2* | 25.2±9.9* | 19.9±6.9* | 13.03±2.5* | 5.19±1.5* | 3.15±0.7* | 0.55±0.06* | 3.1±1.73* |
POC (μM C / Kg) | 2.16±0.54* | 1.97±0.35* | 1.29±0.36* | 0.55±0.15* | 0.39±0.13* | 0.30±0.13* | - | 1.925±0.56* |
Values shown are those from the same CTD casts as the samples (DeLong et al. 2006 and this work). *Archival data are from ALOHA HOT-DOGS© database (http://hahana.soest.hawaii.edu/hot/hot-dogs/) or in the case of Km3 from the ICES oceanographic database (http://www.ices.dk/ocean) and correspond to several datasets collected at the depth and approximate location (less than 50 NM away) as the samples. Values in parentheses are the average value±standard deviation. Abbreviations are Temp, Temperature; Chl, chlorophyll; DOC, dissolved organic carbon; DIP, dissolved inorganic phosphate; N+N, nitrate plus nitrite; SLCA, silicate; HPP, heterotrophic picoplankton (DAPI counts); POC, particulate organic carbon.