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  • Other Sources  (101)
  • Articles (OceanRep)  (101)
  • Springer  (73)
  • Taylor & Francis  (21)
  • ASLO (Association for the Sciences of Limnology and Oceanography)  (7)
  • American Meteorological Society
  • Springer Nature
  • 1985-1989  (101)
Collection
  • Other Sources  (101)
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Year
  • 1
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    Some foods of Buller's mollymawk Diomedea bulleri (1986)
    Taylor & Francis
    In:  New Zealand Journal of Zoology, 13 (2). pp. 169-174.
    Details
    Publication Date: 2020-06-22
    Description: 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.
    Type: Article , PeerReviewed
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  • 2
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    Molecular association of Cu, Zn, Cd and 210Po in the digestive gland of the squid Nototodarus gouldi (1987)
    Springer
    In:  Marine Biology, 95 (1). pp. 87-91.
    Details
    Publication Date: 2017-03-29
    Description: 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.
    Type: Article , PeerReviewed
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  • 3
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    Regulation of respiration during juvenile development of Sepia officinalis (Mollusca: Cephalopoda) (1988)
    Springer
    In:  Marine Biology, 97 (3). pp. 365-371.
    Details
    Publication Date: 2020-07-14
    Description: A culture of juvenile Sepia officinalis L. was kept during summer 1985 in the aquaria of the “Station Marine”, Wimereux, France. During the first four months of juvenile development, oxygen consumption under increasing hypoxia was measured with a closed respirometer. The experiments revealed a high regulatory capacity of juvenile S. officinalis. The critical oxygen concentrations were calculated and their ontogenetical evolution was studied. The critical oxygen concentration increased with increasing development. A linear relationship emerged between the critical oxygen concentration and the logarithm of the wet weight [COc (mg O2 l-1)=-0.393+0.893×log10(Ww)]. The decreasing regulatory capacity of growing S. officinalis is most probably related to adaptations to a changing ecological environment during development. Another possibility is a physiological change, most probably related to the shift from embryonic to adult hemocyanin.
    Type: Article , PeerReviewed
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  • 4
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    The diets of five summer breeding seabirds in Adélie Land, Antarctica (1989)
    Springer
    In:  Polar Biology, 9 (3). pp. 137-145.
    Details
    Publication Date: 2020-06-10
    Description: The diets of five breeding seabird species were investigated on Adélie Land in January–February 1982. Stomach contents of Adélie penguins, Pygoscelis adeliae, were sampled by a water off-loading method and of Procellariiformes by spontaneous regurgitation. Diet compositions by mass were: Adélie penguin (79% euphausiid, 18% fish, 3% squid); Cape pigeon, Daption capense, (64% euphausiid, 29% fish, 7% carrion); Antarctic fulmar, Fulmarus glacialoides, (64% euphausiid, 20% carrion, 16% fish); snow petrel, Pagodroma nivea, (95% fish, 2% euphausiid, 1% carrion) and Wilson's stormpetrel, Oceanites oceanicus, (39% fish, 37% euphausiid, 13% carrion, 12% various crustaceans). The present Adélie penguin diet is consistent with those reported in other studies, given our knowledge of geographical variation in food availability. Differences in the diets of fulmarine petrels appear to relate to differences in foraging areas. The snow petrel is a fish-eating bird associated with pack-ice. Cape pigeon and Antarctic fulmar are mainly krill-eaters and we infer segregation along a neritic/oceanic gradient because of the importance of the neritic Euphausia crystallorophias in the former and the oceanic E. superba in the latter.
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  • 5
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    Squid beaks regurgitated by greyheaded and yellownosed albatrosses,Diomedea chrysostoma and D. chlororhynchos at the Prince Edward Islands (1986)
    Taylor & Francis
    In:  Ostrich, 57 (4). pp. 203-206.
    Details
    Publication Date: 2020-06-15
    Description: Squid regurgitated by Greyheaded and Yellownosed Albatrosses at the Prince Edward Islands were predominantly two onychoteuthid species, Kondakovia longimana and Moroteuthis knipovitchi. Both squid are characteristic of cold, Antarctic waters and may have been caught south of the Antarctic Convergence, some 350 km to the south of the breeding station. Both albatross species regurgitated similar squid (by species and size), and these squid were similar to those found in previous studies of the diet of Wandering, Sooty and Lightmantled Sooty Albatrosses at the Prince Edward Islands
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  • 6
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    Observations on food remains in faeces of elephant, leopard and crabeater seals (1986)
    Springer
    In:  Polar Biology, 6 (1). pp. 43-45.
    Details
    Publication Date: 2020-06-10
    Description: Faecal material of leopard, crabeater and elephant seals was collected from the vicinity of Davis station, Antarctica. Very few identifiable remains were found in elephant seal droppings. Fish remains, mainly of Pleuragramma antarcticum, were found in both leopard and crabeater seal droppings. The mysid Antarctomysis maxima was also found in crabeater seal droppings and amphipods and decapod crustaceans in leopard seal droppings.
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  • 7
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    Food of the emperor penguin Aptenodytes forsteri on the Antarctic fast ice edge in late winter and early spring (1986)
    Springer
    In:  Polar Biology, 6 (3). pp. 187-188.
    Details
    Publication Date: 2020-06-10
    Description: The food of emperor penguins Aptenodytes forsteri at the edge of the sea ice off the Vestfold Hills was studied by faecal analysis. Fish, crustacean, cephalopod and gastropod remains were found in 151 droppings collected between August and October 1984. The main fish identified from otoliths was Pleurogramma antarcticum with an average standard length of 129.5 mm. Amphipods increased in frequency from August to October with gammarids predominating.
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  • 8
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    PREY OF NORTHERN ROCKHOPPER PENGUINS AT GOUGH ISLAND, SOUTH ATLANTIC OCEAN (1988)
    Taylor & Francis
    In:  Ostrich, 59 (4). pp. 162-165.
    Details
    Publication Date: 2020-06-15
    Description: The diet of Northern Rockhopper Penguins Eudyptes chrysocome moseleyi breeding on Gough Island, south Atlantic Ocean was studied, during November 1984, 1985 and 1986 by stomach content analysis. Rockhopper Penguins fed chiefly on the euphausiids Thysanoessa gregaria, Euphausia lucens and E. similis. Fish and squid were of minor importance by mass but constituted the largest individual prey items.
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  • 9
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    Seabird and fur seal responses to vertically migrating winter krill swarms in Antarctica (1989)
    Springer
    In:  Polar Biology, 10 (1).
    Details
    Publication Date: 2020-06-10
    Description: The foraging behaviour of fur seals and two species of surface feeding seabirds was observed over swarms of vertically migrating krill along the Antarctic Peninsula in July 1987. Fur Seal haul out patterns were correlated with krill in the upper 30 m of the water column. Krill moved to the surface at night; seals subsequently foraged from 1400-0700 hours before returning to floes. Foraging was continuous through the night. Dive duration decreased as krill moved up to the surface; shorter dives may have been more successful than longer ones. It is possible that very deep dives, which occur early in a foraging bout, represent more of an attempt to assess krill depth and distribution rather than being a genuine foraging effort. Seabirds responded to the presence of a surface krill swarm by circling over it and foraging; krill at depths greater than 30 m elicited directional flight and low frequencies of prey capture attempts. Both Snow Petrels and Antarctic Terns preyed on krill, but each species approached the swarms from different habitats. Snow Petrels primarily overflew areas covered by ice; terns preferred open water. This suggested that prey encounters are essentially opportunistic, although the search for prey is limited to rather specific marine habitats. This feature may be important to our understanding of the factors that determine the pelagic distribution of seabirds.
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  • 10
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    Aspects of natural foraging bySepietta oweniana(Mollusca, Cephalopoda) (1985)
    Taylor & Francis
    In:  Ophelia, 24 (1). pp. 65-74.
    Details
    Publication Date: 2020-06-15
    Description: The feeding biology of the nectobenthic, sepiolid squid, Sepietta oweniana is treated based on behavioural observations in aquaria and stomach content analyses on 859 trawl caught squid. Juvenile squid in aquaria catch free-swimming prey, preferably the mysid Praunus flexuosus, day and night using the bottom only for shorter resting periods. Adult squid forage from dusk till dawn from positions close to the bottom and spend the day buried in the bottom. Praunus flexuosus is preferred as prey in comparison with demersal and benthic crustaceans as Palaemon elegans and Crangon crangon. Stomach analyses show that in daytime catches, only 16% of all analyzed specimens had stomach contents. Low frequencies were consistent throughout most sampled months in 1979 and 1982. Of the specimens with stomach contents most (50–100%) contained fragments of the euphausiid Meganyctiphanes norvegica. Specimens with remains of decapod shrimps were found in late spring and early summer. It is concluded that S. oweniana feeds in the hyperbenthic habitat at very low light intensities mostly on Meganyctiphanes norvegica in northern waters. A tentative ecological trade off explanation for this apparently inefficient feeding pattern is briefly discussed.
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