NEWSLETTER 4/2010 18. April 2010
Frank Velte, Diplom Biologe, Bad Homburg, Germany
Getulio Rincon, Universidade Paulista-UNIP, Instituto de Ciências da Saúde, Brasília-DF, Brazil
Owen O'Shea, School of Biological Sciences and Biotechnology, MurdochUniversity, Murdoch, Australia
Bernard Séret, Muséum national d'Histoire naturelle, Département Systématique et Evolution, Paris, France
Max Janse, Burgers' Zoo, Arnhem, Netherlands
Peter Kyne, Research Associate - Aquatic Ecology, Tropical Rivers and Coastal Knowledge (TRaCK), Charles Darwin University, Darwin, Australia
Magister Barbara Wueringer, School of Biomedical Sciences, University of Queensland, Brisbane, Australia
M.Sc. Amanda Carvalho de Andrade, Fisheries Biology and Technology Laboratory (LBTP), Federal University of Rio de Janeiro (UFRJ), Brazil
M.Sc. Luiz Constantino da Silva Junior, Fisheries Biology and Technology Laboratory (LBTP), Federal University of Rio de Janeiro (UFRJ), Brazil
Gustavo E. Chiaramonte, Jefe División Ictiología - Director Estación Hidrobiológica de Puerto Quequén, Museo Argentino de Ciencias Naturales "B. Rivadavia", Buenos Aires, Argentina
27.03.2010: 129 new data, 148 new analysed papers
17.04.2010: 258 new data, 348 new analysed papers
Currently this database contains 7.324 papers (4.910 about recent sharks, rays and chimaeras, 2.414 about fossil sharks, rays and chimaeras). Out of this 7.324 papers, 3.584 papers had been evaluated, and there is the possibility of free downloading 828 papers.
ICES Annual Science Conference 2010
Elasmobranch Fisheries: Developments in stock assessment, technical mitigation and management measures
All abstracts must be received on or before Thursday 15 April 2010
Early registration opens March 2010
Early registration deadline Tuesday 31 August 2010
The II Colombian Meeting on Chondrichthyans
16-20 August 2010
The deadline for abstracts is May 14, 2010.
Further information on the Meeting is on the SQUALUS FOUNDATION website (www.squalus.org).
NEW FUNCTION OF THE WEBSITE:
- Menue “Search”
Now it is possible to choice between “only recent/extant” and “only fossil”
- DOI-Resolver ("Hauptmenü", on the left side)
Digital Object Identifier - DOI
A digital object identifier (DOI) is a character string used to uniquely identify an electronic document or other entity. The DOI for a document remains fixed over the lifetime of the document, unlike URLs which can change when a publisher of online content changes its web server's file structure. The DOI system also provides a mechanism for locating an up-to-date URL for a document from its DOI and for associating other forms of metadata with an object; thus, naming a document by its DOI provides a more stable mechanism than URLs for linking to online content.
The DOI System is implemented through a federation of DOI Registration Agencies coordinated by the International DOI Foundation, which developed and controls the system.
To use the DOI-Resolver click on the button “DOI-Resolver” and copy and paste the DOI-number into the box.
Currently this database contains 846 DOI-numbers.
- Protected Species in Germany ("Hauptmenü", on the left side)
Under this menue you will find all protected species with links to the law.
Actually I search photos of this species. So if you have some photos of these species (e.g. photos of the species, jaws, teeth, morphological details, rostrum, rostral-teeth or photos of products of trade, e.g. jewelry, products of art) for me, it would be nice, if you would send them per mail (email@example.com). Each photo will be accompanied by a copyright notice.
KLUG, S. & KRIWET, J. (2010): Timing of deep-sea adaptation in dogfish sharks: insights from a supertree of extinct and extant taxa. Zoologica Scripta, doi: 10.1111/j.1463-6409.2010.00427.x
KLUG, S. & KRIWET, J. (2010): A new Late Jurassic species of the rare synechodontiform shark, Welcommia (Chondrichthyes, Neoselachii). Paläontologische Zeitschrift, in press
GODFREY, S.J. & SMITH, J.B. (2010): Shark-bitten vertebrate coprolites from the Miocene of Maryland. Naturwissenschaften: in press DOI 10.1007/s00114-010-0659-x
FISCHER, J. & AXSMITH, B.J. & ASH, S.R. (2010): First unequivocal record of the hybodont shark egg capsule Palaeoxyris in the Mesozoic of North America. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen, 255 (3): 327-344, 7 fig., 3 tab.
KLUG, S. (2010): Monophyly, Phylogeny and Systematic Position of the Synechodontiformes (Chondrichthyes, Neoselachii). Zoologica Scripta, 39 (1): 37-49
RILEY, M.J. & HALE, M.S. & HARMAN, A. & REES, R.G. (2010): Analysis of whale shark Rhincodon typus aggregations near South Ari Atoll, Maldives Archipelago. Aquatic Biology, 8: 145-150
MENNI, R.C. & JAUREGUIZAR, A.J. & STEHMANN, M. & LUCIFORA, L.O. (2010): Marine biodiversity at the community level: zoogeography of sharks, skates, rays and chimaeras in the southwestern Atlantic. Biodiversity and Conservation, 19 (3): 775-796
KAJIURA, S.M. (2010): Pupil dilation and visual field in the piked dogfish, Squalus acanthias. Environmental Biology of Fishes, in press
MORGAN, A. & CARLSON, J.K. (2010): Capture time, size and hooking mortality of bottom longline-caught sharks. Fisheries Research, 101 (1-2): 32-37
KING, J.R. & MCFARLANE, G.A. (2010): Movement patterns and growth estimates of big skate (Raja binoculata) based on tag-recapture data. Fisheries Research, 101 (1-2): 50-59
MONTEALEGRE-QUIJANO, S. & VOOREN, C.M. (2010): Distribution and abundance of the life stages of the blue shark Prionace glauca in the Southwest Atlantic. Fisheries Research, 101 (3): 168-179
ENEVER, R. & REVILL, A.S. & CASLAKE, R. & GRANT, A. (2010): Discard mitigation increases skate survival in the Bristol Channel. Fisheries Research, 102 (1-2): 9-15
TRIBUZIO, C.A. & KRUSE, G.H. & FUJIOKA, J.T. (2010): Age and growth of spiny dogfish (Squalus acanthias) in the Gulf of Alaska: analysis of alternative growth models. Fishery Bulletin, 106 (2): 119-135
KITTIPHATTANABAWON, P. & BENJAKUL, S. & VISESSANGUAN, W. & KISHIMURA, H. & SHAHIDI, F. (2010): Isolation and Characterisation of collagen from the skin of brownbanded bamboo shark (Chiloscyllium punctatum). Food Chemistry, 119 (4): 1519-1526
NAVARRO-GARCIA, G. & RAMIREZ-SUAREZ, J.C. & COTA-QUINONES, E. & MARQUEZ-FARIAS, F. & BRINGAS-ALVARADO, L. (2010): Storage stability of liver oil from two ray (Rhinoptera bonasus and Aetobatus narinari) species from the Gulf of Mexico. Food Chemistry, 119 (4): 1578-1583
KITTIPHATTANABAWON, P. & BENJAKUL, S. & VISESSANGUAN, W. & SHAHIDI, F. (2010): Comparative study on characteristics of gelatin from the skins of brownbanded bamboo shark and blacktip shark as.... Food Hydrocolloids, 24 (2-3): 164-171
BARBUTO, M. & GALIMBERTI, A. & FERRI, E. & LABRA, M. & MALANDRA, R. & GALLI, P. & CASIRAGHI, M. (2010): DNA barcoding reveals fraudulent substitutions in shark seafood products: The Italian case of “palombo” (Mustelus spp.). Food Research International, 43 (1): 376-381
KYNE, P.M. & SIMPFENDORFER, C.A. (2010): Deepwater chondrichthyans. In: J.C. Carrier, J.A. Musick and M.R. Heithaus (Eds) Sharks and Their Relatives II: Biodiversity, Adaptive Physiology, and Conservation. CRC Press, Boca Raton: 37-114
DEAN, M.N. & SOCHA, J.J. & HALL, B.K. & SUMMERS, A.P. (2010): Canaliculi in the tessellated skeleton of cartilaginous fishes. Journal of Applied Ichthyology, 26 (2): 263-267
KITCHENER, P.D. & SNOW, P.J. (2010): Spinal reflexes in the long-tailed stingray, Himantura fai. Journal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology, 196 (4): 263-270
JANSE, M. & SCHRAMA, J.W. (2010): Reproductive cycle, nutrition and growth of captive blue spotted stingray, Dasyatis kuhlii (Dasyatidae). Journal of the Marine Biological Association of the United Kingdom, 90 (2): 353-360
O’SHEA, O.R. & KINGSFORD, M.J. & SEYMOUR, J. (2010): Tide-related periodicity of manta rays and sharks to cleaning stations on a coral reef. Marine and Freshwater Research, 61 (1): 65-73
HOFF, G.R. (2010): Identification of skate nursery habitat in the eastern Bering Sea. Marine Ecology Progress Series, 403: 243-254
STELBRINK, B. & VON RINTELEN, T. & CLIFF, G. & KRIWET, J. (2010): Molecular systematics and global phylogeography of angel sharks (Genus Squatina). Molecular Phylogenetics and Evolution, 54 (2): 395-404
MCCAULEY, D.J. & PAPASTAMATIOU, Y.P. & YOUNG, H.S. (2010): An Observation of Mating in Free-Ranging Blacktip Reef Sharks, Carcharhinus melanopterus Pacific Science, 64 (2): 349-352
GRIFFITHS, A.M. & SIMS, D.W. & COTTERELL, S.P. & EL.NAGAR, A. & ELLIS, J.R. & LYNGHAMMAR, A. & McHUGH, M. & NEAT, F.C. & PADE, N.G. & QUEIROZ, N. & SERRA-PEREIRA, B. & RAPP, T. & WEARMOUTH, V.J. & GENNER, M.J. (2010): Molecular markers reveal spatially segregated cryptic species in a critically endangered fish, the common skate (Dipturus batis). Proceedings of the Royal Society of London, Series B, 277: 1497-1503
KITAMURA, A. & OGAWA, K. & SHIMIZU, T. & KURASHIMA, A. & MANO, N. & TANIUCHI, T. & HIROSE, H. (2010): A new species of Calicotyle Diesing, 1850 (Monogenea: Monocotylidae) from the shortspine spurdog Squalus mitsukurii Jordan & Snyder and the synonymy of Gymnocalicotyle Nybelin, 1941 with this genus. Systematic Parasitology, 75 (2): 117-124
KRIWET, J. & ENDO, H. & STELBRINK, B. (2010): On the occurrence of the Taiwan angel shark, Squatina formosa Shen & Ting, 1972 (Chondrichthyes, Squatinidae) from Japan. Zoosystematics and Evolution, 86 (1): 117-124
Sharks from Deep Waters of Cantabrian Sea Are Opportunist Hunters
ScienceDaily (Apr. 9, 2010) — A team of Spanish researchers has studied the diet of three species of sharks living in the deep waters in the area of El Cachucho, the first Protected Marine Area in Spain, which is located in the Cantabrian Sea off the coast of Asturias. These animals feed on the resources available in their environment, according to changes taking place in the ocean depths.
"All the sections of the food chain are inter-related in these deep-sea ecosystems, and a small change in any one of the links in this chain can cause great changes in the rest," says Izaskun Preciado, lead author of the study and a researcher at the Oceanographic Centre in Santander, which is run by the Spanish Institute of Oceanography (IEO).
In order to gain a detailed understanding of the species that inhabit El Cachucho (Spain's first Protected Marine Area located off the coast of Llanes in Asturias), the scientists studied three species of shark that live at depths of between 400 and 1,000 metres, the blackmouth catshark (Galeus melastomus), the velvet belly lantern shark (Etmopterus spinax), and the birdbeak dogshark (Deania calcea).
The researcher says the results of the study, which has been published in the Journal of Fish Biology, showed that "the sharks' diet is opportunist, because they feed off whatever resources are available, in this case small euphausiid crustaceans, benthopelagic prawns and fish."
Two different habitats
The samples gathered between October 2003 and April 2004 made it possible to define two different habitats -- the top of the bank, at a depth of 454 to 642 metres and covered with a fine layer of sediments with a low percentage of organic material, and the interior of the inner basin, which separates the bank from the continental shelf, at a depth of between 810 and 1,048 metres.
The study shows that the top of the bank (400-500 metres) is inhabited by two of the three shark species studied (the blackmouth catshark and the velvet belly lantern shark). "However, the velvet belly lantern shark is substituted in the deeper parts of the basin by the birdbeak dogshark," explains Preciado.
In the deepest waters, the scientists sampled down to a depth of 1,100 metres and found that the blackmouth catshark and the birdbeak dogshark coexist there without any trophic competition between them, "since each one has specialised to eat a particular kind of food," says the oceanographer.
Predicting changes in the trophic chain
The team stresses the importance of these studies in monitoring species in the El Cachucho area. "It is likely that the establishment of the Protected Marine Area will cause changes in the abundance of certain species of fish, above all commercial ones. For this reason, understanding the trophic network of these ecosystems will help us to predict future changes in the abundance of species," explains Preciado.
The researcher warns: "A significant increase in a predator species could lead to a drastic decline in its prey, and so understanding the dynamics of the trophic networks will help us to predict changes in each of the sections of the ecosystem."
The presence of larger blackmouth catsharks in shallow waters, for example, is a good indicator of higher levels of zooplankton production in these areas.
El Cachucho is an undersea mountain located in the Cantabrian Sea, off the coast of Asturias. At around 4,500 metres in height (measured from its base on the deep-water plain of the Bay of Biscay), it has great faunal and biological wealth. It is the first exclusively marine reserve in Spain. To date, only parks such as Doñana, Cabrera and the Atlantic Islands of Galicia had extended their protection to include part of the maritime environment.
Story Source: Adapted from materials provided by FECYT - Spanish Foundation for Science and Technology, via EurekAlert!, a service of AAAS.
- Preciado, I.; Cartes, J.E.; Serrano, A.; Velasco, F.; Olaso, I.; Sánchez, F.; Frutos, I. Resource utilization by deep-sea sharks at the Le Danois Bank, Cantabrian Sea, north-east Atlantic Ocean. Journal of Fish Biology, 2009; 75 (6): 1331 DOI: 10.1111/j.1095-8649.2009.02367.x
SUMMARY OF THE FIFTEENTH CONFERENCE OF THE PARTIES TO THE CONVENTION ON INTERNATIONAL TRADE IN ENDANGERED SPECIES OF WILD FAUNA AND FLORA: 13-25 MARCH 2010
Download of the full document: http://www.iisd.ca/download/pdf/enb2167e.pdf