MERAMED
Metadata
|
Partners Research Links |
This coverage represents the
data collected during the MERAMED project (funded by the EU). Data were
collected during a screening cruise in July 2001 where 7 marine fish cage
farms in Greece were surveyed to test Scottish and Norwegian environmental monitoring
techniques. A second more detailed
cruise was undertaken at 3 of the original Aegean sites in March 2002. The
objective of this cruise was to validate modelling predictions with real
data. The third and final cruise
took place in October 2002 at the same 3 sites and all tasks were repeated in
order to collect data after the summer season when the highest feeding rate
takes place and the cages have the highest biomass before fish are sold. |
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Research Projects
|
Partners Research Site details Data Links |
Current Research Projects AQCESS: Aquaculture
and Coastal Economic and Social Sustainability Quality of Life QLRT-99-31151, 01-12-2000 - 31-11-2003 BIOFAQs: BIOFiltration
and AQuaculture: an evaluation of hard Substrate deployment performance
within mariculture developments Quality of Life QLRT-99-31305, 01-12-2000 - 31-11-2003 MERAMED: Modelling
Environmental Response to Aquaculture in the MEDiterranean Quality of Life QLRT-99-31779 01-12-2000 - 31-11-2003 MED-VEG: Effects of
nutrient release from MEDiterranean Fish farms on benthic VEGetation in
coastal ecosystems Quality of Life QLRT – 2000-02456 01-11-2001 - 31-11-2004 Past Research Projects EPET: Interactions
of aquaculture and the marine environment Greek General Secretariat for Research and
Technology. 2nd Operational Programme for R&T 01-01-1996 - 31-12-1998 |
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Web Page
Maintained by Jos Keogeler
|
Partners Research Site details Data Links |
Biological data ·
Macrofauna ·
Meiofauna ·
Biomass ·
Diversity Chemical data ·
Dissolved O2 above the bottom ·
Redox Physical data ·
Water currents ·
Salinity ·
Wind speed ·
Sediment temperature
·
Conductivity,
Temperature and Depth (CTD) profiles |
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Web Page
Maintained by Jos Keogeler
|
TITLE: |
Meiofaunal
abundances below and at various distances of marine fish farms in the eastern
Mediterranean |
|
VARIABLES: |
Location
name, Location code, Collection date, Distance from cages, Sediment depth, Abundance |
|
DATA RANGE (Individuals/10cm2): |
July 2001:Not available at present; March 2002: 52-1340; October 2002: Not available at
present |
|
METHODS: |
Meiofaunal
samples were collected by subsampling the Smith & McIntyre grab, by
subsampling the Van Veen grab or with corers by divers. Samples were first
relaxed in 5% MgCl 6% and stored in 5% formalin (2% formaldehyde) |
|
PRINCIPAL INVESTIGATOR |
Dr.
Ioannis (Yannis) Karakassis, Assistant Professor in Ecology e-mail:
jkarak@imbc.gr |
|
RESEARCH SCIENTIST: |
Dr. Nikolaos Lampadariou e-mail: nlamp@imbc.gr |
|
LOCATION: |
Confidential |
|
DATES: |
July
2001, March 2002, October 2002 |
|
CITATION: |
Feller RJ,
Warwick RM (1988) Energetics. In: Higgins RP, Thiel H (eds)
Introduction to the study of meiofauna. Smithsonian Institution Press,
Washington DC, London, p 181-196 Heip C, Vincx
M, Vranken G (1985) The ecology of marine nematodes. Oceanogr Mar Biol Annu
Rev 23:399-489 Pfannkuche O, Thiel H (1988) Sample
processing. In: Higgins RP, Thiel H (eds) Introduction to the study of
meiofauna. Smithsonian Institution Press, Washington,
D.C., London, p 135-145 Somerfield PJ, Clarke KR (1995) Taxonomic
levels, in marine community studies, revisited. Mar Ecol
Prog Ser 127:113-119 |
MERAMED MEATADATA FILE
|
TITLE: |
Particulate
organic carbon concentrations below and at various distances of marine fish
farms in the eastern Mediterranean |
|
VARIABLES: |
Location
name, Location code, Collection date, Distance from cages, Sediment depth,
Total organic carbon (TOC), Total organic nitrogen (TON), TOC/TON |
|
DATA RANGE (%): |
July 2001: 0.3-5.1; March 2002: Not available at present; October 2002: Not available at
present |
|
METHODS: |
Total
organic carbon and nitrogen were determined by means of a Perkin Elmer 2400
CHN Elementar Analyzer. |
|
PRINCIPAL INVESTIGATOR |
Dr.
Ioannis (Yannis) Karakassis, Assistant Professor in Ecology e-mail:
jkarak@imbc.gr |
|
RESEARCH SCIENTIST: |
Dr. Nikolaos Lampadariou e-mail: nlamp@imbc.gr |
|
LOCATION: |
Confidential |
|
DATES: |
July
2001, March 2002, October 2002 |
|
CITATION: |
Hedges JI, Stern JH
(1984) Carbon and nitrogen determination of carbonate-containing solids. Limnol Oceanogr 29:657-663 |
MERAMED METADATA FILE
|
TITLE: |
Chlorophyll-á concentrations below and at
various distances of marine fish farms in the eastern Mediterranean |
|
VARIABLES: |
Location
name, Location code, Collection date, Distance from cages, Sediment depth,
Chlorophyll-á, Chloroplastic pigment equivalent (CPE), Phaeopigments,
|
|
DATA RANGE (ěg/g): |
July 2001: 0.05-16.1; March 2002: 0.3-0.5; October 2002: Not available at
present |
|
METHODS: |
Algal
pigments were extracted with 90% acetone and calculated with a Turner
fluorometer (model 112) |
|
PRINCIPAL INVESTIGATOR |
Dr.
Ioannis (Yannis) Karakassis, Assistant Professor in Ecology e-mail:
jkarak@imbc.gr |
|
RESEARCH SCIENTIST: |
Dr. Nikolaos Lampadariou e-mail: nlamp@imbc.gr |
|
LOCATION: |
Confidential |
|
DATES: |
July
2001, March 2002, October 2002 |
|
CITATION: |
Yentsch
CS, Menzel DW (1963) A method for the determination of phytoplankton
chlorophyll and phaeophytin by fluorescence. Deep-Sea Res 10:221-231 |
MERAMED METADATA FILE
|
TITLE: |
Dissolved
oxygen above the bottom below marine fish farm cages and at a control
station in the eastern Mediterranean |
|
VARIABLES: |
Location
name, Location code, Collection date, Distance from cages, Dissolved oxygen. |
|
DATA RANGE (ml/l): |
October 2002: 4.8 – 6.8 |
|
METHODS: |
Water
samples were taken using Niskin bottles for the measurement of Oxygen Content
(ml/l) in the Bottom Water Layer. The water samples were taken in the close
vicinity of the cages and the control station at each site and the oxygen
concentration was measured by means of Winkler titration. |
|
PRINCIPAL INVESTIGATOR |
Dr.
Ioannis (Yannis) Karakassis, Assistant Professor in Ecology e-mail:
jkarak@imbc.gr |
|
RESEARCH SCIENTIST: |
Dr. Nikolaos Lampadariou e-mail: nlamp@imbc.gr |
|
LOCATION: |
Confidential |
|
DATES: |
October
2002 |
|
CITATION: |
|
MERAMED METADATA FILE
|
TITLE: |
Redox
potential (Eh) of the sediment, below and at various distances of marine fish
farms in the eastern Mediterranean |
|
VARIABLES: |
Location
name, Location code, Collection date, Distance from cages, Sediment depth, Redox |
|
DATA RANGE (ml/l): |
July 2001: (-256) – (+574); March 2002: (-192) – (+533); October 2002: (-242) – (+448) |
|
METHODS: |
Redox
potential (Eh) was measured in larger core samples at 1cm intervals from the
water/sediment interface by means of an electrode standardized with Zobell’s
solution. |
|
PRINCIPAL INVESTIGATOR |
Dr.
Ioannis (Yannis) Karakassis, Assistant Professor in Ecology e-mail:
jkarak@imbc.gr |
|
RESEARCH SCIENTIST: |
Dr. Nikolaos Lampadariou e-mail: nlamp@imbc.gr |
|
LOCATION: |
Confidential |
|
DATES: |
July
2001, March 2002, October 2002 |
|
CITATION: |
Zobell CE (1946)
Studies on the redox potential of marine sediments. Bulletin of the American
Association of Petroleum Geologists 30:477-513 Gray JS (1981)
The ecology of marine sediments. Cambridge University Press, London |
MERAMED METADATA FILE
|
TITLE: |
Salinity
around fish farms in the eastern Mediterranean |
|
VARIABLES: |
Location
name, Location code, Collection date, Distance from cages, Water depth,
Salinity |
|
DATA RANGE (ml/l): |
July 2001: 38.4-39.2; March 2002: 38.8-39.1; October 2002: Not available at
present |
|
METHODS: |
Standard
CTD profiles were obtained various distance from the cages as well as at a Control station. |
|
PRINCIPAL INVESTIGATOR |
Dr.
Ioannis (Yannis) Karakassis, Assistant Professor in Ecology e-mail:
jkarak@imbc.gr |
|
RESEARCH SCIENTIST: |
Dr. Nikolaos Lampadariou e-mail: nlamp@imbc.gr |
|
LOCATION: |
Confidential |
|
DATES: |
July
2001, March 2002, October 2002 |
|
CITATION: |
|
MERAMED METADATA FILE
|
TITLE: |
Wind
speed near fish farms in the eastern Mediterranean |
|
VARIABLES: |
Location
name, Location code, Collection date, Mean wind speed, Max wind speed,
Direction |
|
DATA RANGE (ml/l): |
July 2001: 0.0-13.9; March 2002: 0.0-17.4; October 2002: Not available at
present |
|
METHODS: |
Wind
speed was measured with two AANDERAA 3634 type meteorological stations |
|
PRINCIPAL INVESTIGATOR |
Dr.
Ioannis (Yannis) Karakassis, Assistant Professor in Ecology e-mail:
jkarak@imbc.gr |
|
RESEARCH SCIENTIST: |
Dr. Nikolaos Lampadariou e-mail: nlamp@imbc.gr |
|
LOCATION: |
Confidential |
|
DATES: |
July
2001, March 2002, October 2002 |
|
CITATION: |
|
MERAMED METADATA FILE
|
TITLE: |
Sediment
temperature below and at various distances of marine fish farms in the
eastern Mediterranean |
|
VARIABLES: |
Location
name, Location code, Collection date, Distance from cages, Sediment
temperature |
|
DATA RANGE (°C): |
July 2001: 18-25; March 2002: 16-18; October 2002: 22-25 |
|
METHODS: |
Temperature
was measured with a standard |
|
PRINCIPAL INVESTIGATOR |
Dr.
Ioannis (Yannis) Karakassis, Assistant Professor in Ecology e-mail:
jkarak@imbc.gr |
|
RESEARCH SCIENTIST: |
Dr. Nikolaos Lampadariou e-mail: nlamp@imbc.gr |
|
LOCATION: |
Confidential |
|
DATES: |
July
2001, March 2002, October 2002 |
|
CITATION: |
|
MERAMED METADATA FILE
|
TITLE: |
CTD
Profiles around marine fish farms in the eastern Mediterranean |
|
VARIABLES: |
Location
name, Location code, Collection date, Distance from cages, Water depth, Water
temperature, Irradiance, Chlorophyll-á, Transmitance, Oxygen,
Salinity |
|
DATA RANGE (°C): |
July 2001: Not available at present; March 2002: Not available at present; October 2002: Not available at
present |
|
METHODS: |
All
measurements were done with a Seabird 25 type CTD |
|
PRINCIPAL INVESTIGATOR |
Dr.
Ioannis (Yannis) Karakassis, Assistant Professor in Ecology e-mail:
jkarak@imbc.gr |
|
RESEARCH SCIENTIST: |
Dr. Nikolaos Lampadariou e-mail: nlamp@imbc.gr |
|
LOCATION: |
Confidential |
|
DATES: |
July
2001, March 2002, October 2002 |
|
CITATION: |
|
|
Partners Research Site details Data Links |
Farm background information |
../index.html/index.html
Web Page
Maintained by Jos Keogeler
|
TITLE: |
Site
selection report |
|
ABSTRACT |
Within Greece there is a
wide variation of farm sites ranging: Ø Geographically from Ionian, north and south Aegean Ø Farm size and type from small rectangular wooden
cages to large circular cages Ø Management style from family operated to large
company managed Ø Degree of exposure from very sheltered sites to
relatively exposed sites In order to cover all possible types of farms found
in Greece, a wide variety of factors, which could potentially affect impact of a fish cage farm
on the local environment were taken
into account. |
|
RESPONSIBLE PERSON |
Patrick
White e-mail:
pwhite@hol.gr <mailto:pwhite@hol.gr> |
|
VARIABLES: |
Exposure,
Currents, Depth, Seabed type, Production, Cage type, Average temperature,
Fedding (hand/auto), Average chlorophyll |
|
LOCATION: |
Confidential |
|
DATES: |
July
2001 |
Farm background information / selection
criteria
|
Site
No |
Seabed
type |
Production |
Cage
type |
Average
temp |
Feeding
(hand/auto) |
Average
Chlorophyll |
|||
|
Code
1 |
Sheltered |
Strong |
Shallow
< 25 m |
Silt |
Small
< 100 t |
Small
rectangular |
17
– 18 |
Hand
feeding |
<
0.3 |
|
Code
2 |
Medium |
Medium |
Medium
25 – 35 |
Fine
sand |
Medium
100 – 300 |
medium |
18
– 19 |
Both |
0.3
– 0.5 |
|
Code
3 |
Exposed |
Weak |
Deep
> 35 m |
Sand |
Large
> 300 t |
Large
circular |
19
– 20 |
Automatic |
.>0.5
|
Site characteristics
|
Sheltered |
3 farms |
|
|
|
Medium |
2 farms |
|
|
Exposed |
2 farms |
|
Strong |
2 farms |
|
|
|
Medium |
3 farms |
|
|
Weak |
2 farms |
|
Shallow < 25 m |
3 farms |
|
|
|
Medium 25-35 m |
2 farms |
|
|
Deep > 35 m |
3 farms |
|
Seabed type |
Silt |
1 farm |
|
|
Fine sand |
2 farms |
|
|
Sand |
4 farms |
|
Farm production |
Small: <100t |
None |
|
|
Medium: 100-300t |
2 farms |
|
|
Large: >300t |
5 farms |
|
Cage Type |
Small rectangular |
2 farms |
|
|
Medium |
2 farms |
|
|
Large circular |
4 farms |
|
Average Temperature |
17-18 |
none |
|
|
18-19 |
3 farms |
|
|
19-20 |
4 farms |
|
Feeding Hand/Auto |
Hand feeding |
1 farm |
|
|
Automatic |
1 farm |
|
|
Both |
5 farms |
|
Average Chlorophyll in the water column |
<0.3 |
4 farms |
|
|
0.3-0.5 |
3 farms |
|
|
>0.5 |
2 farms |