Further such studies of mass strandings, including systematic genetic sampling, are encouraged. The sex composition of strandings of single
or small groups of false killer whales should be investigated, while genetic data from mass strandings or shore-driven samples would help establish relatedness within a group and clarify issues of fidelity to natal schools. TK acknowledges the Katsumoto Fishery Cooperative Union for offering the opportunity to study the catch of false killer whales in Japan, and the team of volunteers that assisted with the collection of samples. IF and PBB would like to thank selleck compound Graham Ross, Vic Cockcroft and others in the team who assisted with data and sample collection from the 1981 St. Helena Bay stranding. IF would also like to acknowledge Rina Owen and Schalk Human, Department of Statistics, University of Pretoria, for statistical
advice, and Steven Austad, University of JQ1 supplier Texas Health Science Center, Robin Baird, Cascadia Research Collective, and Stephanie Plön, Port Elizabeth Museum, for valuable comments and suggestions. Annamarie Bezuidenhout and Hannetjie Bruwer, Academic Information Service, University of Pretoria, assisted in procuring references. HM acknowledges the assistance of Savita Francis in the examination of ovarian material. Natalie Goodall (Centro Austral de Investigaciones Cientificas, Argentina)
kindly provided revised data from the Chilean mass stranding. Financial support for the work in Japan was provided by the World Wide Fund for Nature, Japan, and in South Africa by a grant to PBB from the National Research Foundation, South Africa. Fieldwork in South Africa was carried out under a permit issued to PBB by the Department of Environmental Affairs. “
“Concentrations of plasma adrenocorticotropic hormone (ACTH), cortisol, and aldosterone were investigated in three adult beluga whales (Delphinapterus leucas), held in a large outdoor over public aquarium exhibit. The purpose of this study was to evaluate resting concentrations of these hormones and associated diurnal variations with routine interactions and medical procedures. Resting blood samples were collected voluntarily from the ventral fluke veins at predetermined times of the day to evaluate diurnal changes in analyte concentrations. In addition, hematology and serum chemistry analyses were performed to monitor health status and evaluate changes related to physical exam procedures. Analogous sampling was conducted during out-of-water physical examinations and before and after wading-contact sessions (WCS). Baseline stress hormone concentrations (± SD) were as follows: plasma ACTH (8.41 ± 5.8 pg/mL), serum cortisol (1.80 ± 0.71 g/dL), and serum aldosterone (11.42 ± 5.5 pg/mL).