'Assessment of invasive species effects on benthic ... · Sphaerechinus granularis Striarca lactea...

''AssessmentAssessment ofof invasiveinvasive

speciesspecies effectseffects onon benthicbenthic

communitiescommunities throughthrough stablestable

isotopesisotopes shiftsshifts at at thethe marine marine

environmentenvironment''

''AssessmentAssessment ofof invasiveinvasive speciesspecies effectseffects onon benthicbenthic

communitiescommunities throughthrough stablestable isotopesisotopes shiftsshifts at at thethe marine marine

environmentenvironment''

S. Deudero & S. Deudero & collaboratorscollaborators

LabLab. . BiologiaBiologia MarinaMarina

Universitat Illes BalearsUniversitat Illes Balears

& COB& COB

Instituto Español de Oceanografía IEOInstituto Español de Oceanografía IEO

UIB, 24th January 2009

Talk Talk todaytoday

•• Basic definitionsBasic definitions

•• Application of stable isotopes in littoral ecology:Application of stable isotopes in littoral ecology:

–– Assessing effects of species invasions through Assessing effects of species invasions through

trophic structure and isotopes shiftstrophic structure and isotopes shifts

Why stable isotopes?Why stable isotopes?

What do we use? What do we use? Basic Basic definitionsdefinitions

•• Applications of stable isotope ratios in food web ecologyApplications of stable isotope ratios in food web ecology1515N/N/1414N N δδ1515N N 1313C/C/1212C C δδ1313C C

•• ‘‘WeWe are are whatwhat wewe eateat’ Trophic ’ Trophic enrichmentenrichment, Trophic , Trophic fractionationfractionation::

�� δδ1515N exhibit stepwise enrichment in trophic transfers, powerful N exhibit stepwise enrichment in trophic transfers, powerful tool for estimating trophic positiontool for estimating trophic position

�� δδ1313C vary substantially among primary producers with different C vary substantially among primary producers with different photosynthetic pathways (photosynthetic pathways (egeg. C. C33 vs.Cvs.C44 plants), but change little plants), but change little with trophic transfers. Therefore, with trophic transfers. Therefore, δδ1313C can be used to determine C can be used to determine ultimate sources of dietary carbonultimate sources of dietary carbon

•• isotopes ratios have become one of the most common tools isotopes ratios have become one of the most common tools employed in the study of trophic structureemployed in the study of trophic structure

Application of stable isotopes in Application of stable isotopes in

littoral ecologylittoral ecology

Assessing effects of species invasions through Assessing effects of species invasions through

trophic structure and isotopes shiftstrophic structure and isotopes shifts

–– Levels of concern:Levels of concern:

–– Algal effects of Caulerpa spp over Algal effects of Caulerpa spp over macrofaunalmacrofaunal

community (invertebrates)community (invertebrates)

–– Fish responses to Caulerpa ingestionFish responses to Caulerpa ingestion

–– Sessile species: bryozoan Sessile species: bryozoan Reteporella grimaldiiReteporella grimaldii and and

bivalve bivalve Pinna nobilisPinna nobilis

Invasive species ecosystem responsesInvasive species ecosystem responses

Increase in biodiversity or reduction of the ecosystem function?Increase in biodiversity or reduction of the ecosystem function?

Changes at biological level and ecosystem functioning Changes at biological level and ecosystem functioning

Homogenization of communitiesHomogenization of communities

Economical changesEconomical changes

Native population invaded by invasive speciesNative population invaded by invasive species

SeagrassesSeagrasses

Function, structure and fate of productionFunction, structure and fate of production

High structural diversity due to vegetated systems?

Patchiness

High diversity? Trophic enhancement/Refuge

Habitat structureHabitat structure-- architecturearchitectureSubstrate availabilitySubstrate availability

RationaleRationale

•• Is there a change in functional biodiversity at shallow seagrassIs there a change in functional biodiversity at shallow seagrass

beds induced by invasive macroalgae species?beds induced by invasive macroalgae species?

•• Are macroalgae invasive species Are macroalgae invasive species Caulerpa Caulerpa spp and spp and LophocladiaLophocladia

lallemandiilallemandii changing changing macrobenthicmacrobenthic biodiversity at biodiversity at Posidonia Posidonia oceanicaoceanica

seagrass beds at Western Mediterranean?seagrass beds at Western Mediterranean?

Posidonia Posidonia oceanicaoceanica seagrass seagrass bedsbeds

Invasive macroalgaeInvasive macroalgaeCaulerpa taxifolia and C. racemosaCaulerpa taxifolia and C. racemosa

Native seaweed Caulerpa Native seaweed Caulerpa proliferaprolifera

Invasive Invasive LophocladiaLophocladia lallemandiilallemandii

Seagrass structure and biomass distribution

Fate of production

Invasive macroalgae effectsInvasive macroalgae effects

HypothesisHypothesis

•• Change in species composition at the community levelChange in species composition at the community level

•• Shifts in trophic functioning, functional biodiversityShifts in trophic functioning, functional biodiversity

–– Trophic guildsTrophic guilds

–– Fate of productionFate of production

Experimental designExperimental design

•• Shallow vegetated systemsShallow vegetated systems

•• Seagrass beds: Seagrass beds: Posidonia Posidonia oceanicaoceanica

•• MacroalgalMacroalgal mats:mats: Caulerpa Caulerpa proliferaprolifera

•• 3 invasive species: 3 invasive species:

–– Caulerpa racemosaCaulerpa racemosa

–– Caulerpa taxifoliaCaulerpa taxifolia

–– LophocladiaLophocladia lallemandiilallemandii

–– LophocladiaLophocladia lallemandiilallemandii detritusdetritus

Caulerpa prolifera

Ace.ace

Ara.iri

Asc.fra

Asp.mue

Bit.ret

Bry.sp.

Cau.pro

Cau.tax

Cer.vul

Chi.oli

Cli.ery Col.rus

Cor.elo

Cor.jul

Das.ver

Dic.dic

Dip.ann

Euclymene sp.

Eun.vit

Gla.tra

Gob.sp.

Hal.fil

Hex.tru

Hol.for

Hol.pol

Jan.rub

Lum.gra

Maj.squ

Maj.ver

Mur.hel

Nem.uni

Pad.pav

Pag.sp.

Par. liv

Pec.kor

Pel.are

Pey.rub

Pil.hir

Pis.cre

POM

Pon.chr

Pos.oce

Ser.scr

Sip.nud

SOM

SOMa

Syn.typ

Tel.ser

Hal.tun

Sco.por

Tha.hae

2

4

6

8

10

12

14

16

-22,00 -20,00 -18,00 -16,00 -14,00 -12,00 -10,00 -8,00 -6,00 -4,00 -2,00

δδδδ13C

δδ δδ15N

Sedimentivores,

detritivores

Fish

Primary

producers

Posidonia oceanica

Caulerpa prolifera

Caulerpa taxifolia

ResultsResults-- 22--Trophic shiftsTrophic shiftsStable isotopes, ecological tracersStable isotopes, ecological tracers

Trophic dispersion at community level Trophic dispersion at community level CaulerpaCaulerpa vsvs

PosidoniaPosidonia

Acar ina

Acetabul ar ia acetabulum

Amphiur idae

Anadyomene stel lata

Ar ca noae

Ascobul la f r agi l is

Aspidosiphon muel ler i Aster ina pancer i i

Calcinus tubular is

Caul er pa pr ol i f er a

Caul er pa racemosa

Chr omi s chromis

Cl ibanar ius er ythr opus

Columbel l a r ust ica

Cor is jul i s

Ctena decussataCymodoce sp1

Dasycladus vermicular is

Dictyota dichotoma

Halopter is

Hal opter is f i l icina

Halopter is scopar i a

Harmothoe spini f er a

Hexapl ex tr unculus

Ir cinia

Laur encia

Lur ia lur i da

Mul lus surmul etusNassar ius i ncr assatus

Neanthes agulhana

Obl ada melanur a

Octopus vulgar isOphi oderma longicauda

Ophi othr i x f r agi l is

Ophiur i dae

Pagel lus acar ne

Paphia aur ea

Pectinar i a (Lagis) kor eni

Pel ogenia ar enosa

Peyssonnel ia

Pher usa eruca

Phyl lophor a cr i spaPOM

Pontogenia chr ysocoma

Por i f er a

Rissoa simi l is

Scor paena por cus

Smar agdia vi r idis

Str amonita haemastoma

Symphodus (Cr eni labr us) doder l ei ni

Ulva

Upogebia del taur aUpogebia medi ter r anea

Val oni a

Venus ver r ucosa

Di plodus annular isDi pl odus sar gus

Echinaster (Echinaster ) seposi tus

Echinoi dea

Ecteinascidia tur binata

Euni ce vi ttata

Flabel l ia peti ol ata

Glans tr apezi a Hal imeda tuna

Diplodus vulgar is

Ar abel l a (Ar abel l a) i r icolor

Al pheus dentipes

Athanas ni tescens

Bi ttium r eticulatum

Cer i thium vulgatum

Chiton ol ivaceus

Codium bur saCodium vermi l ara

Dictyota

Galathea bol i var iHal iotis tuber culata lamel losa

Holothur ia

Jania r ubensLimar ia hians

Lumbr iner is gr aci l i s

Lumbr iner is latr ei l l i

Ophiur oidea

Padi na pavonica

Paracentr otus l ivi dus

Peyssonnel ia squamar iaPisa muscosa

Posidoni a oceanica

Ser r anus scr iba

SOM

Xantho pi l ipes

0

2

4

6

8

10

12

14

16

-35 -30 -25 -20 -15 -10 -5 0

δδδδ 13C/

12C

δ

δ

δ

δ 15N/14N

Acar ina

Alpheus macr ocheles

Amphiur idae

Ar ca noae

Cal ci nus tubul ar i s

Caul er pa taxi f ol i a

Cor is jul is

Cymodoce sp2


Hexaplex tr unculus

Ir cinia

Ophioderma longi cauda

Ophiothr ix f r agi l is

Pelogenia ar enosa

Peyssonnel ia

Polyplacophor a sp1

Polypl acophor a sp2

POM


Sabel l idaeSar cotr agus f asciculatus

Schizobr achiel la sanguinea

Diplodus annular is


Echinocyamus pusi l lus

Echinoidea

Epinephelus mar ginatus

Eunice vi ttata

Fibular i idae

Flabel l ia petiolataGalaxaura oblongaGlans tr apezia

Hal imeda tuna

Diogeni dae

Achaeus cr anchi i

Alpheus

Alpheus dentipes

Amphir oa r igida

Ar ca

Aster inidae

Athanas ni tescens

Bittium r eticulatum

Cer i thium vulgatum

Champia

Chiton ol ivaceus

Codium bur sa

Codium vermi lar a

Dictyota

Galathea bol ivar i

Hal iotis tuber culata l amel losa

Holothur ia

Hyal inoeci a bi l i neata

Jania rubens

Labr i dae

Limar ia hians

Lumbr iner is gr aci l is

Lumbr iner i s latr ei l l i

Lysidice ninetta

Mur aena helena

Nematoner ei s hebes

Ophiur oidea

Padina pavonica

Pagur idae

Par acentr otus l ividus

Peyssonnel ia squamar ia

Pisa muscosa

Pista cretacea

Polypl acophora sp3Posi donia oceanica

Ser r anus scr i ba

SOM

Sphaer echi nus granular is

Str i arca lactea

Symphodus (Creni labr us) t inca

Ter ebel l idae

Thyone f usus

Xantho pi l ipes

0

2

4

6

8

10

12

14

16

-35 -30 -25 -20 -15 -10 -5 0

δδδδ 13C/

12C

δ

δ

δ

δ 15N/14N

Eucl ymene

Acetabular i a acetabulum

Amphiur a chiaj ei

Amphiur i dae

Anthur idae

Ascobul la f r agi l is

Aspidosiphon muell er i

Br yopsi sCalci nus tubular is

Capr el l idae Cauler pa pr ol i f er aCauler pa taxif ol i a

Cli banar ius er ythr opusColumbell a r usti ca

Cor al l ina

Cor is jul i s

Cyathur a car i nata

Cymodoce sp1Cymodoce sp3


Di ctyota di chotoma

Di lophus f asciol a

Halopter i s f i l ici na

Lor i pes lacteusLucinel la di var i cata

Maja squinado

Maja ver r ucosa

Maldanidae

Mysida

Neanthes agulhana

Ner eidi dae

Notomastus sp1

Ophicemidae

Ophiur i dae

Oxynoe ol ivacea

Pagur us

Paphia aur ea

Pecti nar i a

Pecti nar i a (Lagis) kor eni

Pelogenia ar enosa

Peyssonnel ia

Pi lumnus hir tel l usPista

Pol ysi phonia

POM


Posidonia detr i tus

Pr axi l l ur a

Scor paena por cus

Sipunculus nudus

Str amonita haemastoma

Symphodus (Cr eni labr us) r oi ssal i

Syngnathus typhle

Tel l i na ser r ata

UpogebiaXantho por essa

Diplodus annular is


Euni ce vi ttata

Flabel l i a peti olata

Glans tr apezia

Gobius

Hal imeda tuna

Ar abell a (Ar abel l a) i r icolor

Alpheus denti pesAthanas ni tescens

Bitti um r eti culatum

Cer ithium vulgatum

Chi ton ol ivaceus

Dictyota

Holothur i a

Hyal inoecia bi l i neata

Jania r ubens


Lysidi ce ni netta

Mur aena helena

Nematoner ei s hebes

Padina pavonica

Par acentr otus l ivi dus

Pista cr etacea

Posidonia oceani ca

Ser r anus scr i ba

SOM

Ter ebel l i dae

Thyone f usus

Xantho pi l ipes

0

2

4

6

8

10

12

14

16

-35 -30 -25 -20 -15 -10 -5 0

δδδδ 13C/

12C

δ

δ

δ δ 15N/14N

C. racemosa

P. oceanica

Ebalia edwar dsi i

Acetabular ia acetabulum

Alpheidae

Alpheus macr ocheles

Amphiphol is squamata

Amphiur a chiaj ei

Anthur a

Ar ca noaeAscobul la f r agi l is

Bolma r ugosa

Calci nus tubular is

Cauler pa taxi f ol ia

Chr omis chr omis

Codium adhaer ens

Cor i s jul is

Cymodoce

Cymodoce sp1

Cymodoce sp2

Cymodoce sp3

Dictyota dichotoma

Dilophus f asciol a

Halocynthia papi l losa

Halopter is f i l i cina

Hexaplex tr unculus

Ir cini a

Jel l yf ish

Liocar ci nus cor r ugatusLithognathus mor myr us

Loveni idae

Maja squinado

Mull us surmuletus

Neanthes agulhana

Oblada melanur a

Ophioder ma l ongi cauda

Ophiur i dae

Pachygr apsus marmor atus

Pectinar ia

Pelogenia ar enosa

Peyssonneli aPeyssonnel ia r ubr a

Pher usa er uca

Phymatol i thon calcar eum

POM


Por if er a

Por if er a epiphyte PosidoniaPseudocapetel l i da

Scor paena por cus

Ser r anus cabr i l l a

Sipunculus nudus

Spicar a smar is

Spondylus

Synodus saur us

Venus ver r ucosa

Diplodus annular is

Diplodus sar gus

Ebal ia seplexaur a



Echinoidea

Eunice vittata

Exogonidae

Flabel l i a peti olata

Gibbula ar dens

Glans tr apeziaHalimeda tuna

Diplodus vulgar is

Achaeus cr anchi i

AlpheusAlpheus denti pes

Ar ca

Athanas nitescens

Boops boops

Cer ithium vulgatum

Codium bur sa

Galathea bol ivar i Holothur ia

Hyali noecia bi l i neata

Limar ia hi ans

Lumbr iner is gr aci l is


Lysidi ce ninetta

Mur aena helena

Ophiur oidea

Padina pavonica

Pagur idae

Pisa muscosa

Pista cr etacea

Posidonia oceanica

Ser r anus scr i ba

SOM

Symphodus (Cr eni l abr us) ti nca

Ter ebel l idae

Xantho pi l i pes

0

2

4

6

8

10

12

14

16

-35 -30 -25 -20 -15 -10 -5 0

δδδδ 13C/

12C

δ

δ

δ

δ 15N/14N

C. prolifera

C. taxifolia

Trophic shifts at Functional groupsTrophic shifts at Functional groups

Posidonia oceanica

DE HE

BIF

BIF/FF

CA

FLF

HE/BIF

OMPOS

PP

SC

2

4

6

8

10

12

14

-22 -20 -18 -16 -14 -12 -10 -8 -6 -4 -2

δδδδ13C

δδ δδ15

15

15

15N

Caulerpa prolifera

BIF

BIF/FF

DEDF

FLF

HE

HE/DE

OM

PP

SC

SC/BIF

2

4

6

8

10

12

14

16

-22 -20 -18 -16 -14 -12 -10 -8 -6 -4 -2

δδδδ1 31 31 31 3C

δδ δδ15N

Caulerpa prolifera

Caulerpa taxifolia

BIF

BIF/FF

BIF/HE

DE

DF

FLF

HE

OM

PP

SC

2

4

6

8

10

12

14

-22 -20 -18 -16 -14 -12 -10 -8 -6 -4 -2

δδδδ13C

δδ δδ15

15

15

15N

Caulerpa taxifolia

Caulerpa racemosa

PP

BIF

BIF/FF

BIF/PPF

CA

DE

DF

FLF

HE

HE/BIF

HE/DEOM

POS

SC

SC/BIF

2

3

4

5

6

7

8

9

10

11

-20 -18 -16 -14 -12 -10 -8 -6 -4 -2 0

δδδδ13C

δδ δδ15N

Caulerpa racemosa

PERMANOVA, p<0.05

Trophic guildsTrophic guilds

MDS MDS infaunalinfaunal spsspsMDS trophic MDS trophic guildsguildsTrophic guilds invasive species

Resemblance: S17 Bray Curt is s im ilarity

P.oceanica

C.prolifera

C.taxifolia

C.racemosa

Lophocladia

Lophocladia detritus

2D Stress: 0

Resemblance: S17 Bray Curtis similarity

P.oceanica

C.prolifera

C.taxifolia

C.racemosa

Lophocladia


2D Stress: 0


FLF

2E-2

8E-2

0,14

0,2

P.oceanica

C.prolifera

C.taxifolia

C.racemosa

Lophocladia


2D Stress: 0

Filter feeders


DF

3E-2

0,12

0,21

0,3

P.oceanica

C.prolifera

C.taxifolia

C.racemosa

Lophocladia


2D Stress: 0

Detritus feeders

Food sources contribution Food sources contribution ((IsosourceIsosource mixing models)mixing models)

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

Posidonia oceanica Caulerpa prolifera Caulerpa taxifolia Caulerpa racemosa

Glans trapezia Glans trapezia Glans trapezia Glans trapezia

Sourc

e c

ontr

ibution (%

)

Posidonia oceanica Halimeda tuna Padina pavonica POM SOM Caulerpa spp.

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%


Cerithium vulgatum Cerithium vulgatum Cerithium vulgatum Cerithium vulgatum

Sourc

e c

ontr

ibution (%

)


0%

20%

40%

60%

80%

100%


Athanas nitescens Athanas nitescens Athanas nitescens Athanas nitescens

Sourc

e c

ontr

ibution (%

)


0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%


Xantho pilipes Xantho pilipes Xantho pilipes Xantho pilipes

Sourc

e c

ontr

ibution (%

)


Xantho pillipes Glans trapezia

Athanas nitescensCerithium vulgatum

1

2

3

2.5

4

Biodiversity within the food webBiodiversity within the food web

Invasive macroalgae effectsInvasive macroalgae effects

HypothesisHypothesis

•• Change in species composition at the community levelChange in species composition at the community level

•• Shifts in trophic functioning, functional biodiversityShifts in trophic functioning, functional biodiversity

–– Trophic guildsTrophic guilds

–– Fate of productionFate of production

CommunityCommunity--widewide mesures mesures ofof trophic trophic

structurestructure

•• Which are the next steps?Which are the next steps?

•• Determine convex hull area occupied by species Determine convex hull area occupied by species

in in δδ1313CC--δδ1515N niche space as a representation of N niche space as a representation of

the total extent of trophic diversity within a food the total extent of trophic diversity within a food

web web

•• More metrics on trophic community structureMore metrics on trophic community structure

Layman et al., Ecology 2007

Facilitation, Facilitation, spssps synergysynergy

Assessing effects of species invasions Assessing effects of species invasions

through trophic structure and isotopes through trophic structure and isotopes

shiftsshifts

–– Fish responses to Caulerpa ingestionFish responses to Caulerpa ingestion

–– Sessile species: bryozoan Sessile species: bryozoan Reteporella grimaldiiReteporella grimaldii and and

bivalve bivalve Pinna nobilisPinna nobilis

Lophocladia lallemandii effects on sessile

invertebrates (bryozoans, bivalves)

FALTA FOTO DETALL

Interaction between the invasive macroalga Lophocladia lallemandii and the bryozoan Reteporella grimaldiiat seagrass meadows: density and physiological responses. Deudero et al. Biological Invasions 2009

RL

RP

POM

Seagrass detritus

L. lallemandiiP. oceanica

0

1

2

3

4

5

6

7

-30 -25 -20 -15 -10 -5 0

δ13C/

12C

δ15N/14N

Posidonia oceanica

0

5

10

15

20

0 20 40 60 80 100

Frequency (%)

Lophocladia lallemandii

0

5

10

15

20

0 20 40 60 80 100

Source contribution (%)

Frequency (%)

Seagrass detritus

0

5

10

15

20

0 20 40 60 80 100


Frequency (%)

POM

0

5

10

15

20

0 20 40 60 80 100


Frequency (%)

6.5 ± 5.0

30.5 ± 12.5

17.8 ± 12.2

40.5 ± 24.2

16.5 ± 11.9

40.4 ± 24.2

12.6 ± 9.6

35.5 ± 24.5

Non-invaded

ChangesChanges in in Spondyliosoma Spondyliosoma cantharus cantharus dietdiet

Ingestion of Caulerpa racemosa in Spondyliosoma cantharus: physiological responses and

trophic effects. Box et al., JEMBE submitted

Spondylosoma

cantharus

Invaded 1

POM

Spondylosoma

cantharus

Non-invaded 1

Spondylosoma

cantharus

Non-invaded 2

C. racemosa

Squad lobster

(Anomura)

Polychaeta

(Aciculata)

Shrimp

(Caridea)

Spondylosoma

cantharus

Invaded 2

0

2

4

6

8

10

12

14

16

-20 -19 -18 -17 -16 -15 -14 -13

δδδδ 13C/

12C

δ δ δ δ 15N/14N

FishFish dietdiet changeschanges

POM

0

5

10

15

20

0 20 40 60 80 100Source contribution (%)

Frequency (%)

Squad lobster (Anomura)

0

5

10

15

20

0 20 40 60 80 100


Frequency (%)

Polychaeta (Aciculata)

0

5

10

15

20


Frequency (%)

Shrimp (Caridea)

0

5

10

15

20


Frequency (%)

Caulerpa racemosa

0

5

10

15

20


Frequency (%)

POM

0

5

10

15

20


Frequency (%)

Squad lobster (Anomura)

0

5

10

15

20

0 20 40 60 80 100


Frequency (%)

Polychaeta (Aciculata)

0

5

10

15

20


Frequency (%)

Shrimp (Caridea)

0

5

10

15

20


Frequency (%)

Caulerpa racemosa

0

5

10

15

20


Frequency (%)

δ13C/12C δ15N/14N

22.2 ± 17.5

27.0 ± 12.1

12.3 ± 9.8

11.7 ± 9.3

26.8 ± 12.115.1 ± 8.5

23.6 ± 14.8

31.1 ± 18.9

23.9 ± 17.9

6.9 ± 5.7

7.9 ± 6.5

8.2 ± 6.7

28.2 ± 22.0

48.9 ± 16.1

23.0 ± 13.9

23.5 ± 14.3

29.6 ± 18.5

23.9 ± 13.2

Non-invaded

Alteration of filtering capacity Pinna nobilis

Antioxidant response of the bivalve Pinna nobilis to epiphytism by invasive red macroalgae Lophocladia lallemandii. Comp

Biochem. Physiol C. Box et al. 2009

SeasonalSeasonal variationsvariations at at filterfilter feedersfeeders

Stable isotopes signatures (δδδδ13C and δδδδ15N) on different tissues of Pinna nobilis Linnaeus, 1758 (Mollusca, Bivalvia): tissue fractionation and seasonal variations. Cabanellas-Reboredo et al.

IsosourceIsosource

contributioncontribution

Effects of invaded Posidonia oceanica meadows by the red macroalga Lophocladia lallemandii on the diet of Pinna

nobilis and its guests Pontonia pinnophylax and Nepinnotheres pinnotheres. Cabanellas-Reboredo et al. Marine Biology

Acknowledgements

Research project effects of macroalgae invasions on seagrass beds faunal

assemblages

•• Miquel Ribas, IUNICS, Biel Martorell Miquel Ribas, IUNICS, Biel Martorell SCT UIBSCT UIB

•• Staff Marine Staff Marine LabLab UIBUIB

•• Expansión de Expansión de Caulerpa prolifera, C. taxifolia Caulerpa prolifera, C. taxifolia y C. racemosay C. racemosa en el Mediterráneo: en el Mediterráneo: dinámica clonal, producción y destino de dinámica clonal, producción y destino de la producciónla producción REN2002REN2002--00701/MAR00701/MAR

•• Macroalgas marinas invasoras en las islas Macroalgas marinas invasoras en las islas Baleares: evaluación de riesgos y efectos Baleares: evaluación de riesgos y efectos en comunidades bentónicas CTM2005en comunidades bentónicas CTM2005--01434/MAR01434/MAR (2006(2006--2009)2009)

•• “Desarrollo de técnicas para evaluar “Desarrollo de técnicas para evaluar juveniles del bivalvo endémico juveniles del bivalvo endémico Pinna Pinna nobilisnobilis mediante dispositivos de mediante dispositivos de asentamiento” AE Govern Balearasentamiento” AE Govern Balear

•• ParcParc Natural Natural SaSa Dragonera CIMDragonera CIM

•• DG Pesca CAIB, Govern BalearDG Pesca CAIB, Govern Balear

•• DG DG InnovacióInnovació CAIB, Govern BalearCAIB, Govern Balear

[email protected]

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