Pacific Science Volume 17, Number 2, 1963
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Pacific Science is a quarterly publication devoted to the biological and physical sciences of the Pacific Region.
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Item Important Pacific Insect Pests of Sugar Cane(University of Hawai'i Press, 1963-04) Pemberton, C.E.Item Effects of Pollution on the Amino Acid Content of Mytilus edulis(University of Hawai'i Press, 1963-04) Schafer, Rita D.In an attempt to determine the influence of polluted water on the amino acid content of Mytilus edulis, muscle tissue of specimens from a clean area was compared with that of specimens from polluted areas and with that of specimens transferred from clean to polluted water. Analyses were made by means of two-dimensional paper chromatography. The amino acids present under one type of environmental condition but not under another were cystine, cysteine, methionine, taurine/asparagine, and proline.Item Studies on the Green Alga, Udotea indica A. & E. S. Gepp, 1911(University of Hawai'i Press, 1963-04) Nizamuddin, MohammedIn Udotea indica reproductive organs are terminal and club-shaped. Numerous biflagellate zooids are produced in the reproductive organs. Udotea is named as the type of a new family, Udoteaceae.Item Life History of the Caligid Copepod Lepeophtheirus dissimulatus Wilson, 1905 (Crustacea: Caligoida)(University of Hawai'i Press, 1963-04) Lewis, Alan G.Copepods of the family Caligidae are found as external parasites on both fresh and salt water fishes throughout the world. Even with their wide distribution, relatively little is known about their life history. The presentation of the life history of Lepeophtheirus dissimulatus, a caligid found on salt water fishes, should provide more information on the life history and general biology of this group of copepods.Item Feeding Behavior in Three Species of Sharks(University of Hawai'i Press, 1963-04) Hobson, Edmund S.This report concerns a study of the feeding behavior in three species of sharks: Carcharhinus menisorrah Muller and Henle, the grey shark (Fig. 1), Carcharhinus melanopterus Quoy and Gaimard, the blacktip shark (Fig. 2), both of the family Carcharhinidae; and Triaenodon obesus Ruppell, the whitetip shark (Fig. 3), of the family Triakidae. The study was conducted in the lagoon at Eniwetok Atoll, Marshall Islands, during the summers of 1959 and 1960. It was a segment of a broad program of investigation of shark behavior in which laboratory and field work were coordinated whenever possible. The overall program, conducted at both the Eniwetok Marine Biological Laboratory and the Hawaii Marine Laboratory, Coconut Island, Hawaii, was under the direction of Dr. Albert 1. Tester, with financial support from the Office of Naval Research (Contract Nom 2756(00), Project NR 104503).Item The Role of Olfaction in Shark Predation(University of Hawai'i Press, 1963-04) Tester, Albert L.It is recognized that most if not all species of sharks possess a keen sense of smell which is used in detecting dead and wounded prey or other edible material during their well-known scavenging operations. The early experiments of Parker (1910), Sheldon (1911), and Parker and Sheldon (1913) established the role of the paired nasal organs as olfactory receptors. Parker (1914) demonstrated directional response in the smooth dogfish (Mustelus canis) and provided a plausible explanation of how this was accomplished; he postulated that the two separated nostrils have the ability to detect small differences in the concentration of odorous materials enabling the shark to orient in the direction of equal stimulation and to head "upstream" to the source. This tracking ability is well recognized by skin divers and fishermen who have involuntarily attracted sharks by retaining speared fish or by discarding trash fish and offal from their boats.Item Sargassum Vegetation Growing in the Sea around Tsuyazaki, North Kyushu, Japan(University of Hawai'i Press, 1963-04) Yoshida, Tadao; Sawada, Takeo; Higaki, MasahiroEcological studies on the subtidal marine vegetation, including the Sargassum community, have not progressed far because it is harder to make field surveys in subtidal vegetation than in terrestrial or intertidal vegetations. Some depth records for species of marine algae have been obtained using dredges and other instruments. From these data, we know that there is considerable vegetation developed at subtidal depths (cf Ueda and Okada, 1938, 1940).Item 17:2 Table of Contents - Pacific Science(University of Hawai'i Press, 1963-04)