Symposium Program and Book of Abstracts

12th International Deep-Sea Biology Symposium Reykjavík, Iceland 7-11 June, 2010 Hosted by the University of Iceland

Symposium Program and Book of Abstracts

Organizing committee: Jörundur Svavarsson, chair Halldór Pálmar Halldórsson Sigurður Þórðarson Eric dos Santos

Poster no.

Authors

Title

130

Van Oevelen D., Soetaert K., Novoa R., De Stigter H., Cunha M., Pusceddu A. and Danovaro R.

The food web structures of three canyon regions revealed by linear inverse modeling and network analysis

27

Verissimo A., McDowell J.R. and Graves J.E.

Genetic population structure of the Portuguese dogfish Centroscymnus coelolepis within the Eastern Atlantic

131

Vetter E.W., Smith C.R. and De Leo F.C.

Enhanced megafaunal abundance and diversity in submarine canyons on the Oceanic Islands of Hawaii

87

Vinogradov G.M. and Falkenhaug T.

Pelagic amphipods from the North Atlantic Ridge in summer 2004

111

von Thun S. and Simmons K.

Observations of deep pelagic polychaete egg cases

44

Waller R.G., Matheson C., Taviani M., Shank T.M., Adkins J. and Robinson L.F.

Methodological advances in ancient DNA techniques for cold-water corals: utility for phylogenetic studies.

45

Waller R.G., Robinson L.F., Scanlon K.M. and Blackwood D.

Cold-water coral distributions in the Drake Passage from towed camera observations – the nbp08-05 expedition

32

Wedding L.M., Friedlander A.M., Watling L., Gaines S. and Smith C.R.

Design of marine protected areas for nodule mining in the abyssal Pacific using principles of ecosystem based management

28

Zamarro-Camino M., GarcíaAlvarez O., Urgorri V. and Señaris M.P.

Report about two new species of Pruvoinidae (Mollusca, Solenogastes, Cavibelonia) from the DIVA-Artabria I (02-03) Expeditions

132

Aguirre-Villaseñor H., Garcia-Gasca S. A., MadridVera J. and Salas-Singh C.

Genetic Paternity test of Cephalurus cephalus, lollipop catshark (Scyliorhinidae), by random amplified polymorphic DNA techniques

133

Aguirre-Villaseñor H., Moreno-Flores D. J., MadridVera J. and Salas-Singh C.

134

Salas-Singh C. and AguirreVillaseñor H.

New depth record of Coryphaenoides capito (Garman, 1899) Bighead grenadier (Gadiformes: Macrouridae) from the Gulf of California, Mexico Dibranchus spinosus (Garman, 1899) distribution in the Mexican central Pacific

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Abstracts of Poster Presentations Molecular genetic characterization of Desmophyllum dianthus (Anthozoa, Hexacorallia) from the Mediterranean Sea: a preliminary study Addamo Anna M.1,2,Taviani Marco2, Machordom Annie1 1

Consejo Superior de Investigaciones Científicas MNCN - Museo Nacional de Ciencias Naturales, José Gutiérrez Abascal 2, 28006 Madrid, Spain 2

Consiglio Nazionale delle Ricerche ISMAR – UOS Bologna, Via Gobetti 101, 40129 Bologna, Italy

Desmophyllum dianthus (Esper, 1794) is an azooxanthellate scleractinian coral widely distributed in the ocean in a depth range comprised between 8-2500 m. D. dianthus is currently classified in the family Caryophylliidae on the basis of skeletal morphology. Caryophylliidae is not convincingly characterized by well defined morphological characters and available molecular data are somewhat equivocal (Romano and Cairns, 2000). In the Atlantic ocean and Mediterranean Sea Desmophyllum dianthus typically occurs at bathyal depths often associated with framework building species such as Lophelia pertusa and Madrepora oculata. In spite of its relative abundance in geographically disconnected coral stocks throughout its range, virtually no comprehensive molecular information is available on this taxon. Living specimens have been then collected from several sites of Mediterranean Sea at depths of c. 300 - 500 m in order to carry out their genetic characterization. The main scope of this research aims at clarifying the phylogenetic relationships of Desmophyllum dianthus and, above all, the structure and divergence within and among Mediterranean populations based on molecular analyses of ITS and 28S encoding genes. Our initial results seem to document only a slight genetic difference between corals specimens, perhaps suggesting the case of slow evolution for this species but also calling for further in-depth genetic investigation based upon new markers.

Genetic Paternity test of Cephalurus cephalus, lollipop catshark (Scyliorhinidae), by random amplified polymorphic DNA techniques Aguirre-Villaseñor H., Garcia-Gasca S. A., Madrid-Vera J. and Salas-Singh C. Instituto Nacional de Pesca CIAD/Unidad Mazatlán Escuela de Biología, Universidad Autónoma de Sinaloa

Cephalurus cephalus (Gilbert, 1892) is a bathydemersal species found in the tropical eastern Pacific from Baja California to northern Chile. Lollipop catshark is an aplacental viviparous or ovoviviparous species. On 11 February 2007, during the launch of the TALUD project, a total of 18 C. cephalus were caught (13 embryos and 5 adults) at depths between 464 to 486 m in the Gulf of California (TALUD X, St. 12, 28º01’36 N; 111º51’50”W). Total length (LT, mm) were recorded. Because there is a possibility that embryos has been aborted for one of 93

the two mature females cached in the same haul, the random amplified polymorphic DNA (RAPD) assay was used to test paternity. Almost the same band pattern were recorded for all 13 neonates (genetic similarity > 95%), and between them and female F1 (243 mm LT) genetic similarity were >92%. results could have different interpretations. For example: If Female F2 is a rare genotype (p=0.001) and F1 is a common genotype (p=0.99) then the fact that the neonates have a similar genotype to the female F1 is not especially significant (Case 1). However, if it is the other way around such that F1 is the rare genotype (p=0.001) and F2 the common genotype (p=0.99), then the fact that the neonates have the same genotype as the F1 female would likely be very significant (Case 2). If Case 2 is true, then 13 embryos are brothers and sons of F1 female.

New depth record of Coryphaenoides capito (Garman, 1899) Bighead grenadier (Gadiformes: Macrouridae) from the Gulf of California, Mexico Aguirre-Villaseñor H., Moreno-Flores D. J., Madrid-Vera J. and Salas-Singh C. Instituto Nacional de Pesca Posgrado en Ciencias del Mar y Limnologia, UNAM Escuela de Biología, Universidad Autónoma de Sinaloa

Coryphaenoides capito (Garman, 1899) is a bathypelagic species found in the tropical eastern Pacific from Baja California to northern Chile. The Bighead grenadier is found at depths between 305 and 1000 m (Iwamoto, y Schneider, 1995). Data came from seven survey hauls. Specimens were collected aboard the R/V “El Puma” of the Universidad Nacional Autonoma de Mexico. C. capito was collected on 13 of 78 trawls. Deep range of 7 stations was 750 to 966 m (strata 1000 m) and for the other 6 was 1097 to 1750 m (strata 1001 m). Differences in size structure were tested between those deep strata. A multinomial distribution was used to estimate the size-composition by analyzing the total-length frequencies. A total of 41 organisms were recorder, 18 into the strata 1001 m and 23 into the strata 1001 m. In total, 3 modal groups (G1, G2 ad G3) were detected, the means ± standard deviations of modal groups were 15.6 ±1.4 mm (n=13) for G1, 20.5±1.2 mm (n=13) for G2 and 24.5±1.4 mm (n=13) for G3, respectively. All groups were found in both strata; specimens of G1 were more abundant in strata 1000 m, whereas, specimens of G2 and G3 were more abundant in strata 1001. This seems to indicate that bigger organisms show a tendency to inhabit deeper places than smaller ones.. Twenty-three Bighead grenadiers were collected deeper than 1000 m, until now, the presence of C. capito below 1000 m has not been reported in the literature (Iwamoto and Schneider, 1995). One specimen was caught on 25 August 2000 (TALUD VII, St. 20) at a depth of 1750 m. This new record extends the known deeper range of occurrence approximately 750 m deeper than the previously reported limit. Keywords: Gulf of California, new record; maximum depth, Macruridae.

94

Dibranchus spinosus (Garman, 1899) distribution in the Mexican central Pacific Salas-Singh C. and Aguirre-Villaseñor H. Escuela de Biología, Universidad Autónoma de Sinaloa Instituto Nacional de Pesca

The batfish Dibranchus spinosus (Garman, 1899) is a bathydemersal species found in the oriental Pacific, from Baja California to Peru its depth range is from 605 to 1400 m (Bradbury, 1999). D. spinosus was one of the most abundant species in the TALUD Project and was collected on 25 of 116 trawls. Data came from ten survey hauls. Specimens were collected aboard the R/V “El Puma” of the Universidad Nacional Autonoma de Mexico. The sampling device, a 2.35 m wide, 0.90 m high epibenthic sledge equipped with a collecting net of about 5.5 cm stretched mesh size, was operated at depths of 750 to 1750 m. The objective is to provide information of the size structure and distribution patterns of D spinosus in the south center Gulf of California and the Mexican central Pacific. A multinomial distribution was used to estimate the size-composition by analyzing the total-length frequencies. The LT range was 3.8 to 18.3 cm. Three organisms (17.5, 17.5 y 18.3 cm) were bigger than the maximum reported size (Bradbury, 1999). The size structures reveal the presence of 3 modal groups; G1 with 3 organisms smaller than 5 cm, G2 with 42 organisms (6≤LT≥13 cm) and G3 with 18 organisms (12 ≤LT≥18.3 cm). About depth, G1 was only captured at the bathymetric range of 815 and 870 m. Most of the organisms of G2 and G3 were distributed at the 700 and 1300 m range. There is no evidence of size variation with depth. In the present study were reported 4 organisms captured between 1526 and 1750 m. This new bathymetric record increased 311 m the previous reported by Bradbury (1999). Keywords: Mexican central Pacific, Gulf of California, new record; maximum depth, Ogcocephalidae.

Bathymetric and latitudinal gradients in the diversity of pelagic ostracods in the Central Eastern Atlantic Ocean Baczewska A., Błachowiak-Samołyk K. and Angel M.V. Institute of Oceanology of Polish Academy of Sciences, Sopot, Poland National Oceanography Centre, Southampton, UK

Pelagic ostracods are an ecologically important but little-known component of the marine holozooplankton. They are numerically abundant in oceanic regions and throughout the water column, often numerically ranking second after the Copepoda. Planktonic ostracods were identified from samples collected in November 2007 during R/V Polarstern cruise ANTXXIV in the eastern Atlantic Ocean under the aegis of the Census of Marine Zooplankton (CMarZ). Zooplankton was collected from four stations ranging from 11°N to 25°S from the surface to a depth of 1000 m using a MOC-1 and from 1000-5000 m using a MOC-10 net system. Both samplers were fitted with 0.32 mm mesh. CMarZ has focused on under-sampled regions of the world oceans, including the deep mesopelagic and abyssopelagic ocean realms. The aim of this specific project is to assess the species composition and richness of the pelagic Ostracoda. More than 22,500 specimens were sorted at sea, which included at least 98 species. More than six species from the total number of collected ostracods are either novel or are awaiting description. Preliminary comparison of the species composition sampled at each 95

Author index Surname

First name

Page

Abad Addamo Adkins Agnarsson Agnew Aguirre-Villaseñor Aguzzi Aldea Aliani Alt Altamira Althaus Alvaro Alyamira Amaro Angel Arzur Aussignargues Baco Baco-Taylor Baczewska Bagley Bailey Baillon Baker Baker Baldrighi Bamber Barbier Barnes Barrio Froján Barry Beaudoin Beaulieu Beazley Benn Bennett Bentlage Bergman Bergmann Bergstad Bernardino Bernhard

M. A.M J. S. D.J. H. J. C. S. C. I. F. M.C. I. T. M.V. D. C. A. A. A. P. D.M. S. K.D. M.C. E. R.N. G. N. C.S.R. J.P. D.J. S.E. L. A.R. K. B. M. M. O.A. A.F. J.M.

124, 148 93 175 133 80 93, 94, 95 1, 15, 52, 145, 146 116 96 68 76 13 101 98 1, 112 95 10 136 2, 13, 73, 98, 141 30 95 7, 122 2 133 3 96 96 101 10, 28 97 48 3, 53, 71, 105 100 63 4 4 92 47 39, 123, 133 5, 75 5, 11, 42, 98 98, 99 100, 118 179

Participants and contact E-mail address Addamo, Anna M.

[email protected]

Aguirre V, Hugo

[email protected]

Aguzzi, Jacopo

[email protected]

Aliani, Stefano Amaro, Teresa

[email protected]

Ástþórsson, Ólafur

[email protected]

Baco-Taylor, Amy

[email protected]

Baczewska, Anna

[email protected]

Bailey, Mr D M

[email protected]

Baker, Krista

[email protected]

Baker, Maria

[email protected]

Baldrighi, Elisa

[email protected]

Bamber, Roger N

[email protected]

Bárðarson, Hlynur

[email protected]

Barry, James P.

[email protected]

Beazley, Lindsay

[email protected]

Benn, Angela

[email protected]

Bergmann, Melanie

[email protected]

Bergstad, Odd Aksel

[email protected]

Bernardino, Angelo F

[email protected]

Bernhard, Joan M.

[email protected]

Besteiro, Celia

[email protected]

Bik, Holly

[email protected]

Billett, David

[email protected]

Błachowiak-Samołyk, Katarzyna

[email protected]

Błażewicz-Paszkowycz, Magdalena

[email protected]

Boehnke, Rafał

[email protected]

Boersch-Supan, Philipp

[email protected]

Boyle, Elizabeth

[email protected]

Bozzano, Ana

[email protected]

Brix, Saskia

[email protected]

Brown, Alastair

[email protected]

Buck, Kurt

[email protected]

195