Expedition 2015

JBL Expedition 2015: California, South Seas & Australia

JBL Expedition 2015: California, South Seas & Australia

Results: Freshwater

Australia is the home of many rainbow fish and therefore very interesting for us aquarists! Our research team analysed every water where fish or plants were to be found. A mere glance at the salt content (conductivity) showed the adaptability of the rainbow fish: They were to be found in very soft water with only 13 microsiemens as well as in hard water with 5230 microsiemens! Also interesting was that the presence of aquatic plants was never relatable to measurable iron values. Test devices: JBL water tests, Greisinger electronic conductivity meter GLF 100, WinLab lux measuring device with waterproof sensor

country Australia Australia Australia Australia Australia Australia
region Queensland Queensland Queensland Queensland Queensland Queensland
location / biotope type Emerald Creek Lake Barrine Lake Eacham Chambers Rainforest Lodge Tully Gorge
GPS data: longitude 17°03'23'' S 17°14' S 17°17'9'' S 17°40'30'' S
GPS data: latitude 145°32'68'' E 145°38' E 145°37'43'' E 145°31'9'' E
height above mean sea level 562 m
date: 15/10/15 15/10/15 15/10/15 16/10/15 16/10/15 Oct. 16, 2015
time: 12:00 15:50 17:40 07:30 12:00 13:30
cloudiness: 0% 80% 20% 85% 30% 0 %
lux – above surface: 100.4 (200 klux) 12.4 4.1 6.0
lux directly below surface 88.4 (200 klux) 8.8 5.0 3.4
lux in 10 cm depth: 55.6 (200 kux) 13.9 4.0 2.7
lux in 20 cm depth: 56 (200 klux) 8.8 4.0 2.2
lux in 30 cm depth: 40 (200 klux) 12.5 5.9 1.8
lux in 40 cm depth: 40 (200 klux) 34.6 5.9 1.7
lux in 50 cm depth: 40 (200 klux) 22.3 5.9 1.6
visible depth in cm (white lid): 60 cm 200 cm 190 cm max. depth of 30 cm max. depth of 50 cm 40 cm
conductance: 47 77 52 62 58 44
GH: 2 2 1 0 2 2
KH: 2 2 1 0 3 2
pH: 7 7 7 6 6 6
potassium: < 2 < 2 2 < 2 < 2 < 2
magnesium: 0.5 6 2 2 2 1
iron: 0 0 0 0.2 0.4 < 0.2
oxygen: 10 10 6 6 8 6
CO2-Direct: 2 2 0 7 3 4
silicates: > 6 2 > 0,1 > 6 > 6 < 0.1
air temperature: 27 30 26 20 24 28
water temperature: 21.5 24 23 21 21 24
country Australia Australia Australia Australia Australia Australia
region Queensland outback Northern Territories/ Kakadu National Park outback Northern Territory, Litchfield National Park Northern Territories/ Kakadu National Park
location / biotope type Babinda Creek Kathleen Springs Ormiston Gorge Glen Helen Gorge Wangi Falls Gunlom Falls
GPS data: longitude 17°20'46'' S 24°20'18'' S 23°38'15'' S 23°41'16'' S 13°9'38'' S 13°34'26'' S
GPS data: latitude 145°55'30'' E 131°40'51'' E 132°43'33'' E 132°40'43'' E 130°40'53'' E 132°15'19'' E
height above mean sea level 11 m 667 m 704 m 646 m 42 m 171 m
date: 16/10/15 19/10/15 19/10/15 20/10/15 21/10/15 22/10/15
time: 16:30 8:45 17:00 07:30 11:00 14:00
cloudiness: rain 0% 0% 0% 0% 20%
lux-above surface: 102900 51200
lux directly below surface 93000 36900
lux in 10 cm depth: 92000 32200
lux in 20 cm depth: 82000 28800
lux in 30 cm depth: 74400 25100
lux in 40 cm depth: 72300 19800
lux in 50 cm depth: 63800 14600
visible depth in cm (white lid): 20 cm 20 cm 20 cm 500 cm 300 cm
conductance: 44 539 343 5230 14 13
GH: 2 6 3 > 36 0.5-1 1
KH: 2 5 6 11 0.5-1 1
pH: 6 7.3 8 8 < 6 6
potassium: < 2 > 15 < 2 > 15 6 < 2
magnesium: 1 > 10 8.5 > 10 0.5 0.5
iron: < 0.2 0 0 0 0 0.05
oxygen: 6 6 6 5 4 8
CO2-Direct: 4 8 3 10 6 5
silicates: < 0.1 > 6 2.5 0.8 > 6 > 6
air temperature: 28 28 37 26 31 37
water temperature: 24 24 25 22.3 30 28
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