Integrated Multitrophic Aquaculture: Filter Feeders Bivalves as Efficient Reducers of Wastes Derived from Coastal Aquaculture Assessed with Stable Isotope Analyses - Aquaculture and the Environment: A Shared Destiny - page 111

Control 1

16

14

12

Filter feeders

ZP

10

8

6

H. forskalii

PP

4

POM

2

SOM

0

- 3- 2- 1- 0- 9- 8- 7- 6- 5- 4- 3

δ 13 C

Fig. 3. Mean δ 13 C and δ 15 N values of the different samples in control 1 in years 2008 (▲),
2009 (■) and 2010 (●). ZP: zooplankton; PP: phytoplankton; POM: particulate organic matter
and SOM: sedimentary organic matter. Filter feeders include Mytilus galloprovincialis (white
symbol).

Control 2

16

14

12

10

ZP

Filter feeders

8

H. forskalii

6

4

POM POM

PP

2

SOM SOM

0

-23 -22 -21 -20 -19 -18 -17 -16 -15 -14 -13

δ 13 C

Fig. 4. Mean δ 13 C and δ 15 N values of the different samples in the control 2 in years 2008 (▲),
2009 (■) and 2010 (●). ZP: zooplankton; PP: phytoplankton; POM: particulate organic matter
and SOM: sedimentary organic matter. Filter feeders include Mytilus galloprovincialis (white
symbol) and Chlamys varia (grey symbol).