ATTI XLIV Congresso SIBM

ISSN 1123-4245
BIOLOGIA MARINA MEDITERRANEA
Società
Italiana
di Biologia
Marina
Vol. 20 - fasc. 1 - 2013
ATTI XLIV Congresso SIBM
Vol. 20
fasc. 1 - 2013
€ 35,00
ROMA
14-16 Maggio 2013
Biologia Marina Mediterranea
(Biol. Mar. Mediterr. / ISSN 1123-4245)
S.I.B.M. – SOCIETÁ ITALIANA DI BIOLOGIA MARINA / ITALIAN SOCIETY OF MARINE BIOLOGY
Cod. Fisc. 00816390496 – Cod. Anagrafe Ricerca 307911FV
Sede legale/Headquarters c/o Acquario Comunale, Piazzale Mascagni 1 – 57127 Livorno
Direttore Responsabile/Editor in chief
Giulio Relini, Univ. di Genova – e-mail: [email protected]
Editori Associati/Associate Editors
GIACCONE G., Univ. di Catania - e-mail: [email protected]
GUIDETTI P., Univ. di Nizza - e-mail: [email protected]
OCCHIPINTI A., Univ. di Pavia - e-mail: [email protected]
PRONZATO R., Univ. di Genova - e-mail: [email protected]
Comitato di Redazione/Editorial Advisory Board
BELLAN Gérard, (Marseille, France)
BELLAN SANTINI Denise (Marseille, France)
BELLUSCIO Andrea (Roma, Italy)
BERTRAND Jacques (Nantes, France)
BORTONE Stephen (Tampa, USA)
DAVENPORT John (Cork, Ireland)
GAMBI Maria Cristina (Napoli, Italy)
HALLEGRAEFF Gustaaf M. (Hobart, Australia)
HAWKINS Stephen J. (Bangor, U.K.)
JENSEN Antony (Southampton, U.K.)
KALLIANIOTIS Argyris (Kavala, Greece)
NEVES dos SANTOS Miguel (Olhão, Portugal)
PAPACONSTANTINOU Costas (Athens, Greece)
RYLAND John (Swansea, U.K.)
SCHEMBRI Patrick (Msida, Malta)
SEAMAN William (Gainesville, USA)
SERENA Fabrizio (Livorno, Italy)
SOCAL Giorgio (Venezia, Italy)
Segreteria di Redazione/Editorial Assistants
E. Massaro, S. Queirolo, R. Simoni
Redazione/Editorial Office
S.I.B.M. c/o DISTAV, University of Genova, Viale Benedetto XV, 3 – 16132 Genoa, Italy
Tel. e fax 0039 010 357888
e-mail: [email protected]
Editore Stampatore/Production Editor/Publisher
Erredi Grafiche Editoriali S.n.c., Via Trensasco, 11 – 16138 Genova
Abbonamenti ed arretrati/Subscription and back issues
Erredi Grafiche Editoriali S.n.c.
tel. 0039 010 8356880
e-mail: [email protected]
Biologia Marina Mediterranea è la rivista ufficiale della Società Italiana di Biologia Marina e viene
repertoriata da ASFA e da Zoological Record.
Biologia Marina Mediterranea is a journal of Italian Society for Marine Biology and is currently indexed
and abstracted by ASFA and Zoological Record.
Biologia Marina Mediterranea è una rivista che tratta ogni aspetto della biologia marina. Al momento
pubblica solo gli atti di congressi e simposi organizzati dalla SIBM, o sintesi su argomenti specifici.
Come supplementi della rivista sono pubblicati anche manuali e guide. Tutti i lavori sono sottoposti a
qualificati referee nazionali ed internazionali.
Biologia Marina Mediterranea is an international journal dealing with all aspects of marine biology. At
present only proceedings of workshops and congresses organized by SIBM or synthesis on special
subjects are published. Guides and manuals are printed as supplements of the Journal. All papers are
rigorously peer reviewed by national and international experts.
Periodico della S.I.B.M. edito dalla Erredi Grafiche Editoriali, Genova – Autorizzazione Tribunale di Genova n. 34/94 del 13 dicembre 1994
BREVE STORIA DELLA S.I.B.M. (SOCIETÁ ITALIANA DI BIOLOGIA MARINA - ONLUS)
La Società Italiana di Biologia Marina (SIBM) è stata fondata il 4 giugno 1969 a Livorno presso il
cui Acquario Comunale si trova la sede legale.
L’associazione è una ONLUS dal 1998 ed ha per scopo principale la tutela e la valorizzazione della
natura ed in particolare dell’ambiente marino e del suo biota. Fin dalla fondazione la SIBM ha promosso studi sulla vita marina, anche organizzando e coordinando gruppi di ricerca e campagne in
mare in tutte le acque italiane. Un costante sforzo viene profuso nella diffusione delle conoscenze
scientifiche di base ed applicate e nella promozione dell’educazione e sensibilizzazione sulle problematiche della vita nell’ambiente marino, anche organizzando riunioni, congressi, tavole rotonde e
pubblicando appositi volumi a carattere scientifico. L’attività della SIBM è coordinata da un Consiglio
Direttivo, composto da Presidente, vice Presidente, Segretario più altri quattro membri. Nell’ambito
della Società ci sono cinque Comitati scientifici, ciascuno coordinato da un direttivo composto dal
Presidente, Segretario e quattro membri.
A SHORT HISTORY OF S.I.B.M. (ITALIAN SOCIETY OF MARINE BIOLOGY - ONLUS)
The Italian Society for Marine Biology (SIBM) was founded the 4th June 1969 in Livorno, the
registered office of SIBM was at Aquarium of Livorno (Piazzale Mascagni, 1).
The Association is an ONLUS (like registered charity) since 1998 and has the main aim to promote
the conservation and valorisation of nature and in particular of the marine environment and biota.
Since its foundation SIBM has promoted studies on marine life also organizing coordinated groups
of researchers and surveys in all Italian seas. A constant effort is done to diffuse basic and applied
technical and scientific knowledge to promote education and awareness on marine life also organizing
meetings, congresses, workshops and publishing scientific papers and volumes. Each year a congress and at least a General Assembly is organized in different sites and Proceedings are published.
The activity of SIBM is managed by the Council Board, composed by the President, the vice President, the Secretary and four Councilmen, elected every three years. Inside SIBM there are five Committees, each chaired by a President, Secretary and four Council Members.
CONSIGLIO DIRETTIVO (in carica fino al dicembre 2015)/COUNCIL BOARD (in charge until December 2015)
Stefano DE RANIERI – Presidente/President
Giovanni Fulvio RUSSO – Vice Presidente/Vice President Anna OCCHIPINTI – Consigliere/Member
Roberto PRONZATO – Segretario Tesoriere/Secretary Antonella PENNA – Consigliere/Member
Marina CABRINI – Consigliere/Member
Fabrizio SERENA – Consigliere/Member
Giulio RELINI - Presidente Onorario/Honorary President
PRESIDENTI E SEGRETARI DEI 5 COMITATI SCIENTIFICI/
PRESIDENTS AND SECRETARIES OF 5 SCIENTIFIC COMMITTEES
BENTHOS
(Benthos)
Roberto SANDULLI (Pres.)
Maria Cristina GAMBI (Segr.)
PLANCTON
(Plankton)
Carmela CAROPPO (Pres.)
Olga MANGONI (Segr.)
ACQUACOLTURA
(Aquaculture)
Giovanni SANSONE (Pres.)
Pierluigi CARBONARA (Segr.)
NECTON e PESCA
(Necton & Fishery)
Paolo SARTOR (Pres.)
Alessandro MANNINI (Segr.)
GESTIONE e VALORIZZAZIONE
della FASCIA COSTIERA
(Management of the Coastal Zone)
Leonardo TUNESI (Pres.)
Andrea BELLUSCIO (Segr.)
Segreteria Tecnica ed Amministrazione/Technical and Administrative Secretariat
c/o DISTAV. Università di Genova – Viale Benedetto XV, 3 – 16132 GENOVA
e-mail [email protected]
web site www.sibm.it
G. RELINI
E. MASSARO, S. QUEIROLO, R. SIMONI
tel. e fax 0039 010 3533016
tel. e fax 0039 010 357888
ATTI
del
XLIV
Congresso
ATTI
DEL
della
XLIV
CONGRESSO
SOCIETÀ ITALIANA DELLA
DI BIOLOGIA MARINA
SOCIETÀ ITALIANA DI BIOLOGIA MARINA
ROMA
14-16 MAGGIO 2013
ROMA
14 - 16 MAGGIO 2013
Biol. Mar. Mediterr. (2013), 20 (1): 178-179
E.
de
Sabata, S. Clò
MedSharks, Via Ruggero Fauro, 82 - 00197 Roma, Italy.
[email protected]
SOME BREEDING SITES OF THE NURSEHOUND
(SCYLIORHINUS STELLARIS) (CHONDRICHTHYES,
SCYLIORHINIDAE) IN ITALIAN WATERS,
AS REPORTED BY DIVERS
ZONE DI RIPRODUZIONE DEL GATTOPARDO
(SCYLIORHINUS STELLARIS) (CHONDRICHTHYES,
SCYLIORHINIDAE) NEI MARI ITALIANI
SEGNALATE DAI SUBACQUEI
Abstract - The Mermaid’s Purse project collects volunteer divers’ reports of nursehound egg cases,
Scyliorhinus stellaris (Linnaeus, 1758) (Chondrichthyes, Scyliorhinidae). Preliminary results of this
ongoing study are presented here and identify some breeding areas of this species. This project is an
example of citizen science as a valuable tool in providing information on species seldom caught by
professional fishermen.
Key-words: Scyliorhinus stellaris, breeding sites, citizen science.
Introduction - The nursehound, Scyliorhinus stellaris (Linnaeus, 1758) is a medium
sized catshark, living in the NE-East Atlantic and throughout the Mediterranean
Sea. Presently there is no data on population size and breeding areas in the
Mediterranean, where it is patchily distributed (Ellis et al., 2009), seldom caught by
professional fishermen (IREPA, unpublished data) and has drastically declined in
some areas, with a –99% decrease in scientific trawl surveys in the Tyrrhenian Sea
in the last 20 years (Ferretti et al., 2005). This species lays large egg cases (10-14 cm),
also called “mermaid’s purse”, that take 10-12 months to hatch in captivity (Capapé et
al., 2006). They are highly detectable underwater and a favourite sight with SCUBA
divers. The Mermaid’s Purse project (www.uovodigattuccio.it), launched in 2012, is
collecting divers’ sightings of nursehound egg cases in order to identify some of the
as-yet unknown breeding areas of this species. Misidentification with S. canicula
eggs can be ruled out, as this species lays smaller eggs (7-8 cm) at about 200 m
of depth, thus beyond the range of scuba divers (Ellis et al., 2009). On clear and
easy targets volunteer divers can contribute much-needed information with direct
observations, monitoring the marine environment on a scale that was previously
impossible (Goffredo et al., 2010).
Materials and methods - In this ongoing study, diving centre staff members from
all Italian coastal regions are interviewed to record the presence of nursehound egg
cases in local dive sites. Their observations are deemed reliable since they regularly
dive the same sites for months and often years. Amateur divers are also invited to
take part in the survey, but mainly for awareness reasons. Collected information
includes dive site location, depth, habitat, number of eggs sighted and presence of live
specimens. This project will continue over the next two years, extending interviews
to technical divers regularly diving up to 90 meters of depth.
Results - This project received much attention within the diving community and
was recently sponsored by the main dive training agencies: 123 records were collected
in 6 months by diving centre staff (57%) and recreational divers (43%). Breeding areas
Some breeding sites of the nursehound in Italian waters, as reported by divers
179
months by diving centre staff (57%) and recreational divers (43%). Breeding areas
were
including several
several dive
dive sites in
in the
the
werereported
reportedinin 99out
out of
of 15
15Italian
Italian coastal
coastal regions, including
Ligurian
in
LigurianSea
Sea(the
(thePortofino
Portofinopromontory)
promontory) and
and the
the Tuscan
Tuscan Archipelago
Archipelago (particularly
(particularly in
Elba,
Giannutri
and
Argentario).
The
highest
number
of
egg
cases
(estimated
5+
per
Elba, Giannutri and Argentario). The highest number of egg cases (estimated 5+ per
dive
divesite)
site)was
wasreported
reportedininthe
theGulf
GulfofofNaples:
Naples:ininthe
the Pontine
Pontine Islands,
Islands, Ischia,
Ischia, Procida,
Procida,
Capri
and
the
Sorrento
Peninsula.
Off
the
northern
Adriatic
coast,
mermaid’s eggs
eggs
Capri and the Sorrento Peninsula. Off the northern Adriatic coast, mermaid’s
were reported on the “tegnùe”, rocky reefs on the muddy seafloor off Venice (Fig. 1).
were reported on the “tegnùe”, rocky reefs on the muddy seafloor off Venice (Fig. 1).
Fig. 1 - Nursehound
breeding
areasareas
reported
by divers
Fig. 1 - Nursehound
breeding
reported
by
and average
number
eggs per
dive site.
divers
and of
average
number
of eggs per dive
Zone di site.
riproduzione del gattopardo segnalate dai
subacqueiZone
e numero
medio di
avvistate
per
di riproduzione
del uova
gattopardo
segnalate
punto d’immersione.
dai subacquei e numero medio di uova avvistate
per punto d’immersione.
Divers reported that egg cases are mostly laid in rocky habitats on Paramuricea
clavata, but also on Eunicella cavolini, sponges, nets and wrecks, mostly between 30 to
50Divers
m of reported
depth, which
also cases
matches
limitlaid
of inrecreational
SCUBA
dives. Live
that egg
are the
mostly
rocky habitats
on Paramuricea
clavata,
but are
alsoseen
on 30%
Eunicella
sponges,
nets
and
wrecks,
mostly between
specimens
of thecavolini,
times on
the same
dive
site,
free swimming
and/or 30
in
tocrevices;
50 m ofpictures
depth, provided
which also
matches
theboth
limit
of recreational
SCUBA dives. Live
by divers
show
S. stellaris
and S. canicula.
specimens
are -seen
30% of the
times
on theconcentrate
same dive in
site,
free swimming
and/or
in
Conclusions
Recreational
divers
typically
specific
areas and dive
sites
crevices;
pictures
provided
diversprovide
show both
S. stellaris and
and homogeneous
S. canicula. picture
that are most
pleasing,
thusby
cannot
a representative
of Conclusions
wide areas, - depths
or habitats.
to the
uneven nature
of sampling,
Recreational
divers Due
typically
concentrate
in specific
areas andareas
dive
highlighted
in
this
project
simply
represent
confirmed
breeding
of the
sites that are most pleasing, thus cannot provide a representative and areas
homogeneous
nursehound.
This
project
is another
example
citizen science
cansampling,
provide
picture
of wide
areas,
depths
or habitats.
Dueonto how
the uneven
nature of
valuable
information,
especially
speciesrepresent
that are rarely
caught.breeding areas of the
areas
highlighted
in this
projectforsimply
confirmed
nursehound. This project is another example on how citizen science can provide
Acknowledgments
- The especially
authors would
to thank
all are
diversrarely
takingcaught.
part in this study; IREPA for
valuable
information,
forlike
species
that
landings data; the Save Ours Seas Foundation and A.DI.SUB. for their generous support.
Acknowledgments: The authors would like to thank all divers taking part in this study; IREPA for
References
landings
data; the Save Ours Seas Foundation and A.DI.SUB. for their generous support.
CAPAPÉ C., VERGNE Y., VIANET R., GUELORGET O., QUIGNARD J.P. (2006) - Biological
observations on the nursehound, Scyliorhinus stellaris (Linnaeus, 1758) (Chondrichthyes:
References
Scyliorhinidae)
in captivity.
Acta Adriat.,
(1): 29-36.
CAPAPÉ
C., VERGNE
Y., VIANET
R.,47
GUELORGET
O., QUIGNARD J.P. (2006) - Biological
ELLIS
J.,
SERENA
F.,
MANCUSI
C.,
HAKA
F., MOREY
GUALLART
SCHEMBRI T.
observations on the nursehound, Scyliorhinus
stellaris G.,
(Linnaeus,
1758)J.,(Chondrichthyes:
(2009)
- Scyliorhinus
stellaris.Acta
In: IUCN
Scyliorhinidae)
in captivity.
Adriat.,2012.
47 (1):IUCN
29-36.Red List of Threatened Species. Version
2012.2.J., SERENA F., MANCUSI C., HAKA F., MOREY G., GUALLART J., SCHEMBRI T.
ELLIS
FERRETTI
F., MYERSstellaris.
R., SARTOR
P., 2012.
SERENA
(2005)
Term Dynamics
of the
(2009) - Scyliorhinus
In: IUCN
IUCNF.Red
List -ofLong
Threatened
Species. Version
Chondrichthyan
Fish Community in the Upper Tyrrhenian Sea. ICES CM, 25: 1-34.
2012.2.
GOFFREDOF.,S.,MYERS
PENSAR.,F.,SARTOR
NERI P.,
GAGLIARDI
M.S.,Dynamics
VELARDI
FERRETTI
P., ORLANDI
SERENA F.A.,(2005)
- Long Term
of A.,
the
PICCINETTI
C., ZACCANTI
F. (2010)
Unite
research
with what
do for25:
fun:
“recreational
Chondrichthyan
Fish Community
in -the
Upper
Tyrrhenian
Sea.citizens
ICES CM,
1-34.
monitoring” ofS.,
marine
biodiversity.
Ecol.P.,Appl.,
20: 2170-2187.
GOFFREDO
PENSA
F., NERI
ORLANDI
A., GAGLIARDI M.S., VELARDI A.,
PICCINETTI C., ZACCANTI F. (2010) - Unite research with what citizens do for fun:
“recreational monitoring” of marine biodiversity. Ecol. Appl., 20: 2170-2187.