Dolphin, A. C. and Scott, R. H. (1987) J. Physiol. (London) 386, 1-17 Holz, G. G., Rane, S. G. and Dunlap, K. (1986) Nature (London) 319,670-672 Scott, R. H. and Dolphin, A. C. (1986) Neurosci. Lett. 69,59-64 Lewis, D. L., Weight, F. F. and Luini, A. (1986) Proc. Natl. Acad. Sci. U.S.A. 83, 9035-9039 Grassi, F. and Lux, H. D. (1989) Neurosci. Lett. 105, 113-1 19 Dolphin, A. C., Huston, E. and S...

This study was carried out in the Karnali River of Nepal with the aims of preparing habitat map of dolphins in the Karnali River and assessing conservation threats to dolphin at the local level. The habitat map of the dolphin was prepared on the basis of study and local sightings. Altogether 100 households were surveyed around the Karnali River living within 3 km from the river distance. Questi...

The panhandle region of the Gulf of Mexico is known by scientists, regulatory agencies and conservation organizations as a “hotbed” area of dolphin harassment. Interactions between humans and wild dolphins routinely occur through close vessel approaches or through direct contact associated with commercial or recreational fisheries, swimwith, or feeding activities. Such interactions are of serio...

In mammals, lactation can be the most energetically expensive part of the reproductive cycle. Thus, when energy needs are compromised due to predation risk, environmental disturbance, or resource scarcity, future reproductive success can be impacted. In marine and terrestrial environments, foraging behavior is inextricably linked to predation risk. But quantification of foraging energetics for ...

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The mammalian thyroid gland maintains basal metabolism in tissues for optimal function. Determining thyroid volume is important in assessing growth and involution. Volume estimation is also important in stereological studies. Direct measurements of colloid volume and nuclear-to-cytoplasmic ratio of the follicular cells may provide important information about thyroid gland function such as hormo...

Cetacean sighting data collected under various programmes in Colombian Pacific waters were collated with the goal of assessing the distribution and abundance patterns of all species occurring in the exclusive economic zone (EEZ). Distribution maps are presented for 19 species and one genus based on 603 sightings collected between 1986 and 2008. Ordered by sighting frequency, these species were:...

Dolphins have high propulsion and maneuvering performances. Dolphin’s tail flukes play an important role to generate propulsive force. We paid attention to a dolphin that lost most part of its tail flukes by disease kept in an aquarium, Okinawa, Japan. The dolphin could swim by attaching artificial tail flukes as well as a normal dolphin. The objective of this study is to discuss the effectiven...

is a moderately large and cosmopolitan dolphin species that lives in deep tropical and warm temperate oceanic waters. Data on its distribution in the Mediterranean are very scarce but sightings seem to indicate that the species prefers the slope, mostly where the slope is closest to the coastline (Notarbartolo di Sciara et al., 1993). There are few studies on the diet of Risso’s dolphin and the...