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Some foods of Buller's mollymawk Diomedea bulleri (1986)

West, Jillian A. ; Imber, M. J.

Taylor & Francis

In: New Zealand Journal of Zoology, 13 (2). pp. 169-174.

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Publikationsdatum: 2020-06-22

Beschreibung: Food samples from 27 Buller’s mollymawks Diomedea bulleri from the New Zealand region showed that cephalopods were, by frequency of occurrence and by mass, their preferred food. Fish, crustaceans, and tunicates, in decreasing order of importance, also were taken. Seventeen species of Cephalopoda were identified by their beaks, with 78.5% of individuals belonging to the Ommastrephidae (77% Nototodarus spp.) and 10% to the Histioteuthidae. The diet was compared with that of four other small species of Diomedea, and found to be similar to that of D. chrysostoma, D. irrorata, and D. cauta, but different from that of D. melanophris, whose preferred food is euphausiids. Squid-fishing operations around New Zealand may come into competition with Buller’s mollymawk.

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Molecular association of Cu, Zn, Cd and 210Po in the digestive gland of the squid Nototodarus gouldi (1987)

Finger, J. M. ; Smith, J. D.

Springer

In: Marine Biology, 95 (1). pp. 87-91.

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Publikationsdatum: 2017-03-29

Beschreibung: The squid Nototodarus gouldi (McCoy, 1888) was caught by bottom trawl in Port Phillip Bay, Australia in February 1985. The squid accumulates in its digestive gland high levels of trace metals, with up to 100 μg Cd g-1 dry tissue, 1 200 μg g-1 copper and 1 500 μg g-1 zinc and up to 24 Bq g-1 of the naturally occurring radionuclide polonium-210. The molecular binding of these elements in six squid was investigated using column chromatography. Two poorly resolved copper peaks were associated with proteins of average molecular weights of 11 500 and 18 000. The two squid containing the highest levels of cadmium in their digestive glands (44 and 88 μg g-1) had cadmium associated with a peak of molecular weight intermediate between the copper-binding peaks, but this peak was absent from squid containing lower levels of cadmium. Zinc was associated with ligands of less than 1 500 molecular weight. The 210Po eluted with proteins of greater than 70 000 molecular weight, and there was no evidence of binding to low molecular weight proteins. Different mechanisms appear to be involved in the binding and control of the four elements.

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AGU style : a guide for contributors (1986)

AGU (American Geophysical Union)

In: Eos, Transactions American Geophysical Union, 67 (39). pp. 743-755.

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Publikationsdatum: 2017-08-22

Beschreibung: AGU considers only original scientific contributions that have not been accepted or published elsewhere and are not under consideration by another publisher. A contribution is considered previously published if its data and conclusions are offered for sale or are generally available in other ways to the public. Regardless of the original publication medium, including print, magnetic tape, or microform, such contributions are not eligible for republication in AGU journals or books.

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The intrusion of water masses into the sea southwest of Taiwan (1989)

Shaw, Ping-Tung

AGU (American Geophysical Union)

In: Journal of Geophysical Research - Oceans, 94 (C12). pp. 18213-18226.

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Publikationsdatum: 2017-07-20

Beschreibung: Characteristics of water masses were analyzed to study the Kuroshio intrusion into the sea southwest of Taiwan. Hydrographic data were obtained from CTD (conductivity, temperature, and depth) casts during two cruises in May and August 1986. In May, remnants of water intruding from the Kuroshio were found on the continental slope south of the Penghu Channel. By August, these were replaced by water from the South China Sea. During this period, water from the Kuroshio also appeared near the southern tip of Taiwan. The intrusion current reached a depth of at least 500 m and was probably part of a cyclonic circulation in the northern South China Sea. The results support the hypothesis of a seasonal pattern of the intrusion process: intrusion of water from the Kuroshio begins in late summer, intensifies in winter, and ceases by late spring when South China Sea waters again enter this region.

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