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Habi a mapping o he A ilés Canyon Sys em and he nea con inen al shel
(Can ab ian Sea)
Con e ence Pape · Sep embe 2013
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In eg a ing gene ic connec i i y and adap a ion in deep-sea A lan o-Medi e anean ben hic in e eb a es o conse a ion pu poses (DEEPCON) View p ojec
Sedimen Wa es View p ojec
F ancisco Sánchez
Ins i u o Español de Oceanog a ia
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Ana Ga cía-Aleg e
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Habi a mapping o he A ilés Canyon Sys em
and he nea con inen al shel (Can ab ian Sea)
F ancisco Sánchez*, Ana Ga cía-Aleg e, Ma ía D ue , Albe o Se ano, San iago Pa a, Ja ie C is obo,
An onio Punzón, Ma ía Gómez-Balles e os, Pila Ríos, Jesus Ri e a, An ia Lou ido and Juan Acos a
* Ins i u o Español de Oceanog a ía, P. Box: 240, 39004, San ande , Spain
E-mail: .sanchez@s .ieo.es
The complex A ilés Canyon Sys em is loca ed in he wes e n a ea o he Can ab ian Sea (Bay o Biscay), whose s udy is cu en ly being ca ied ou by he INDEMARES (LIFE+) p ojec . The aim o his p ojec is o
p o ide he necessa y in o ma ion o es ablish a ne wo k o ep esen a i e Ma ine P o ec ed A eas (MPAs) o he pu pose o biodi e si y conse a ion on Spanish wa e s. Fo he e ec i e design o MPAs, one o he
main objec i es o his p ojec is iden i ying and cha ing he habi a s and he biological communi ies ha inhabi hem. Howe e , he EUNIS hie a chical habi a classi ica ion sys em is s ill no well de eloped o he
cha ac e is ics o se e al ecosys ems and, in gene al e ms, i p esen s impo an disc epancies in hei design. In his s udy we a emp o de e mine he sui abili y o his classi ica ion sys em o he pa icula i ies o
he complex A ilés Canyon’s deep-sea ecosys em, iden i ying he main p oblems o be sol ed in imp o ed e sions o he EUNIS o e lec egional peculia i ies. Th ee majo subma ine canyons a e p esen : A ilés, El
Co bi o and La Ga ie a canyons. I ’s also no iceable in he a ea he Agudo de Fue a High ( ocky ou c op) and El Can o Nue o ma ginal shel . I s s uc u al complexi y, in combina ion wi h a high g adien o
en i onmen al a iables ( om 50 o 4800 m dep h) and he exis ence o s ong hyd odynamic ac i i y associa ed o he opog aphy, p oduce a high di e si y o habi a s and biological communi ies.
Da a collec ion
Ba hyme y and geomo phology
BENTHIC HABITATS IDENTIFICATION
Subs a um
Hyd og aphy and dynamics
Habi a iden i ied
1Ci cali o al ock domina e by D.co nige a and P. en ilab um A4.121 (Phakellia en ilab um) and axinellid on deep ci cali o al ock
1
2Deep ci cali o al coa se sedimen A5.15 Deep ci cali o al coa se sedimen
2
3
Deep ci cali o al sand
A5 27
Deep ci cali o al sand
3
EUNIS habi a
1
Biological sampling
3
Deep
ci cali o al
sand
A5
.
27
Deep
ci cali o al
sand
3
4Ci cali o al sandy mud A5.35 Ci cali o al sandy mud
4
5Mixed sedimen s domina e wi h Lep ome a cel ica A5.45 Deep ci cali o al mixed sedimen s
5
6Deep-sea mixed subs a a wi h B isingida s a ish A6.2 Deep-sea mixed subs a a
6
7B eak shel ba hyal sand A6.3 Deep-sea sand
7
8Deep-sea sand wi h lea he sea-u chins A6.3 Deep-sea sand
8
9Uppe slope ba hyal muddy sand A6.4 Deep-sea muddy sand
9
10 Ba hyal mud wi h Flabellum A6.5 Deep-sea mud
10
11 Ba hyal mud wi h Acanella a buscula A6.5 Deep-sea mud
11
12 Ba hyal ock wi h Dend ophyllia co nige a A6.61 Communi ies o Deep-sea co als
12
13 Ba hyal ock wi h whi e co als (Solenosmillia, Enallopsammia)A6.61 Communi ies o Deep-sea co als
13
14 Ba hyal ock wi h black co als ( Leiopa hes, An ipa hes )A6.61 Communi ies o Deep-sea co als
14
15 Ba hyal ock wi h Callogo gia e icilla a A6.61 Communi ies o Deep-sea co als
15
16
3
Fishe y impac s
16 Deep sea Lophelia pe usa and/o Mad epo a ocula a ee s
A
6.611 Deep-sea (Lophelia pe usa) ee s
16
17 Dea h co al ee mounds (co al amewo k) A6.6 Deep-sea biohe ms
17
18 Ba hyal ock wi h Li is ida sponge A6.62 Deep-sea sponge agg ega ions
18
19 Ba hyal ock wi h big Desmospongiae (Geodidae) A6.62 Deep-sea sponge agg ega ions
19
20 Ba hyal och wi h hexac inellid sponge (Asconema)A6.62 Deep-sea sponge agg ega ions
20
21 Ba hyal mud wi h ca ni o ous sponge (Chond ocladia sp.) A6.62 Deep-sea sponge agg ega ions
21
22 Ba hyal mud wi h Phe onema ca pen e i A6.621 Facies wi h Phe onema g ayi
22
23 Rippled mixed sedimen s on canyon loo A6.81 Canyons,channels,slope ailu es and slumps on he con inen al slope
23
24 Mixed sedimen s on ma ine canyons wi h Phelliac is sp. A6.81 Canyons,channels,slope ailu es and slumps on he con inen al slope
24
6
8141623
The esul s show ha he c i e ia o he classi ica ion o he habi a s acco ding o EUNIS does no seem o be sui able (shown in ed) o he
pa icula habi a s ound in he a ea, especially on he deep-sea, whe e in some cases i was possible o each he hi d le el o he hie a chy. The use
o wo di e en le els o agg ega ions on he deep-sea habi a s, ollowing wo di e en c i e ia (subs a e o geomo phology -canyons, enches,e c.)
imply ha he same habi a can be classi ied in o di e en le els. Also, he e is a s ong ishing p essu e and nea ly 400 essels cu en ly ope a e in
he a ea. Consequen ly some o he habi a s a e al e ed o a g ea e o lesse ex en by ishing ac i i ies. Pa icula ly he habi a s loca ed in
sedimen a y g ounds, be ween 100 and 600 m dep hs, a e ex emely dis u bed by awle s and ha e e y al e ed biological communi ies.
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