Subject: CAMMS update Current Advances in Marine Mammal Science (CAMMS) was developed to help keep researchers informed of current marine mammal publications. The current update covers the dates of 27 Sept and 07 Oct. and users can now search for references by the addition date. Instructions are available at <http://camms.tamug.tamu.edu/>http://camms.tamug.tamu.edu. Attached are a few of the 132 references added to CAMMS. Andy Andrew Schiro 1341 Kentucky Lawrence KS, 66044 USA email@example.com ************************************ Yang,F.; Chau,Y.K.; Maguire,R.J. 1998.Occurrence of butyltin compounds in beluga whales (Delphinapterus leucas). Applied Organometallic Chemistry 12(8-9):651-656. Fifty-two beluga whale samples (Six liver samples, and 46 blubber samples including ones from different depths of the fat layer) from the St Lawrence River, Canada, were analyzed for butyltin compounds (mono-, di-, and tri-butyltin) with a view to investigating the occurrence and contamination of butyltin in these;animals, A special procedure was also developed for the determination of butyltin compounds in blubber samples with high lipid content (up to 95%), Total-butyltin concentrations in liver samples were found to be much higher than those in the blubber samples. The concentrations of butyltin compounds in blubber samples were observed to Be related to their lipid content. Concentration levels of butyltin species in beluga whale were compared with those in other marine vertebrates in other parts of the world. The presence of butyltin compounds in liver and blubber samples suggests the accumulation of these toxicants by beluga whale. Venegas,C.C. 1997. Estimation of population density by aerial line transects of Commerson's dolphin Cephalorhynchus commersonii in the Strait of Magellan, Chile. Anales del Instituto de la Patagonia Serie Ciencias Naturales 24:41-48. Results of an aerial sampling of Commerson's dolphin Cephalorhynchus commersonii carried on during early summer (1989-1990) at the eastern sector of the Strait of Magellan are reported. The methodology employed was the estimation of densities by mean of line transects. During two days 79 transects were flown, corresponding to 1,320 km. Because of previous studies indicating the existence of significant differences between the densities of the narrows and the wide parts, the sampling between both sectors was stratified. The total estimated numbers within the study area was of 718 +- 196 individuals. These outputs seems promising for the current state of conservation of the species, as compared with those gotten previously by the author; however, one must bear in mind that those previous results were obtained during autumn, period of possible post summer migrations. On the other hand, when comparing them with those gotten during summer by other authors, the figures of the present study do not even reach up to one fourth of the estimated in that season. Due to the high variability of these figures, it is suggested a higher frequency of monitoring studies on this population of dolphins. Troisi,G.M.; Haraguchi,K.; Simmonds,M.P.; Mason,C.F. 1998. Methyl sulphone metabolites of polychlorinated biphenyls (PCBs) in cetaceans from the Irish and the Aegean Seas. Archives of Environmental Contamination and Toxicology 35(1):121-128. The levels of PCBs and PCB methyl sulphone metabolites were determined in the blubber of six species of cetaceans that originated from the Irish Sea and the Aegean Sea (Mediterranean). Burdens ranging from 2.80 to 27.80 mu g g(-1) (lipid weight) total PCBs and 0.03 to 0.58 mu g g(-1) (lipid weight) total methyl sulphones were recorded. The highest cetacean methyl sulphone burden (0.58 mu g, g(-1)) was in an Irish Sea harbor porpoise (Phocoena phocoena). Methyl sulphone isomer formation capacity, as determined by PCB:MSF ratios, varied considerably between species as follows: harbour porpoise (1:10) > pilot whale (Globicephalus melas), white-sided dolphin (Lagenorhyncus acutus) (1:50) > common dolphin (Delphinus delphis), Risso's dolphin (Grampus griseus), and striped dolphin (Stenella coerueoalba), (1:100), and was related to interspecific variation in PCB methyl sulphone formation capacity. Solntseva,G.N. 1998. Razvitie organov slukha i ravnovesiia u predstavitelia ushastykh tiulenei--sivucha (Eumetopias jubatus). [Development of organs of hearing and balance in representatives of eared seals (Eumetopias jubatus)]. Dokl. Akad. Nauk. 358(1):140-144. Pozas,P. 1997. Impacto del turismo sobre los calderones tropicales en Tenerife. [The impact of tourism on the short-finned pilot whale in Tenerife.] Quercus 131:16-19. Spanish with English summary Bianucci,G.; Sarti,G.; Catanzariti,R.; Santini,U. 1998. Middle Pliocene cetaceans from Monte Voltraio (Tuscany, Italy). Biostratigraphical, paleoecological and paleoclimatic observations. Rivista Italiana di Paleontologia e Stratigrafia 104(1):123-129. The historic collection of fossil odontocetes (Cetacea) from Monte Voltraio, near Volterra (Tuscany, Italy) has been examined and lithostratigraphical and biostratigraphical investigations on the find locality have been carried out. The Monte Voltraio outcrop is referred to the Middle Pliocene, in particular to Globorotalia aemiliana and Discoaster tamalis zones. The odontocete remains are assigned to the families Kogiidae (Kogia pusilla) and Delphinidae (Globicephala? etruriae and two indeterminate specimens which might belong to Hemisyntrachelus and Stenella giulii). The Middle Pliocene cetacean fauna from the Mediterranean basin (Monte Voltraio and Rio Stramonte associations) includes extinct taxa or extant taxa no longer represented in this basin. The disappearance of these taxa may be linked with the Pliocene and/or Quaternary climatic deteriorations (e.g. the climatic crisis at about 2.6-2.4 MA).