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| Registros recuperados: 23 | |
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| Saikku, Reetta Maaria. |
| In Project I, Western tropical Pacific sea surface temperatures and Pacific Deep Water temperatures during Marine Isotope Stage 3 have been reconstructed from the δ18O and Mg/Ca of planktonic and benthic foraminifera from Marion Dufresne core MD98-2181. This 36m marine core was collected at 6.3°N from a water depth of 2114m. With sediment accumulation rates of up to 80cm/ky, it provides a decadally-resolved history of ocean variability during the last glacial period. Surface temperatures and salinities at this site varied in close association with millennial-scale atmospheric temperature swings at high northern latitudes as reflected in the GISP2 ice core. At times of colder atmospheric temperatures over Greenland, the western Pacific was more saline and... |
| Tipo: Text |
Palavras-chave: Climate; Pacific; Tropical; Glacial; Holocene. |
| Ano: 2009 |
URL: https://archimer.ifremer.fr/doc/00495/60653/64150.pdf |
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| Lehnert, H.; Conway, K.W.; Barrie, J. Vaughn; Krautter, M.. |
| A new species of a very thinly encrusting Desmacella (Porifera, Demospongiae, Poecilosclerida, Desmacellidae) is described from Queen Charlotte Basin and Georgia Basin, off the Canadian Pacific coast. It is compared with all known species of the genus, differing in the geometry and size of spicules, and the persistent epizoic growth. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Porifera; Desmacellidae; Taxonomy; New species; Sponge reefs; Pacific; Canada; 42.72. |
| Ano: 2005 |
URL: http://www.repository.naturalis.nl/record/209651 |
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| Tisdell, Clement A.. |
| As pointed out in this article, small island economies are diverse in their nature and in the challenges they face. A taxonomy of these economies is provided. The overview takes account of small island economies that are satellites of large countries as well as those which are independent nation states. Nevertheless, the emphasis here is on small island economies that are remote from central economies or disadvantaged in other ways. These include many island nations in the Pacific and elsewhere. Such economies suffer from diseconomies of scale in economic activity, are prone to imperfect market competition, and experience high transport and trading costs for a variety of reasons which are outlined. The gravitational pull of stronger central economies and... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Small island economies; Globalisation; Pacific; International Development; International Relations/Trade; Political Economy. |
| Ano: 2009 |
URL: http://purl.umn.edu/90627 |
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| Eagar, Sh. |
| Twenty four species of ostracod have been found on Tarawa Atoll and fifteen on Kuria Island, Republic of Kiri-bati in the western Pacific Ocean. Thirteen species are common to both atolls. A consistent difference has been discovered in the ostracod faunas of Tarawa and Kuria, with those from Kuria showing coarser texture in the ornamentation than their counterparts from Tarawa. The variation of carapace ornamentation has led to multiple names for a species. A characteristic ornamentation at a particular locality may be a due to a small number of specimens colonising the new locality and having a limited gene pool. Alternatively, any variation in the ornamentation may be a clue to multiple phases of colonisation within a small area. |
| Tipo: Text |
Palavras-chave: Ostracodes; Atoll; Benthique; Pacifique; Île; Ostracods; Atoll; Benthic; Pacific; Island. |
| Ano: 1999 |
URL: http://archimer.ifremer.fr/doc/00325/43585/44024.pdf |
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| Lacan, F.; Radic, A.; Jeandel, C.; Poitrasson, F.; Sarthou, Geraldine; Pradoux, C.; Freydier, R.. |
| This work demonstrates for the first time the feasibility of the measurement of the isotopic composition of dissolved iron in seawater for a typical open ocean Fe concentration range (0.1-1 nM). It also presents the first data of this kind. Iron is preconcentrated using a Nitriloacetic Acid Superflow resin and purified using an AG1x4 anion exchange resin. The isotopic ratios are measured with a MC-ICPMS Neptune, coupled with a desolvator (Aridus II), using a Fe-57-Fe-58 double spike mass bias correction. Measurement precision (0.13%, 2SD) allows resolving small iron isotopic composition variations within the water column, in the Atlantic sector of the Southern Ocean (from delta Fe-57 = -0.19 to +0.32 parts per thousand). Isotopically light iron found in... |
| Tipo: Text |
Palavras-chave: MC ICP MS; Chelating resin; Southern ocean; Fractionation; Seawater; Earth; Separation; Accuracy; Pacific; FE(III). |
| Ano: 2008 |
URL: https://archimer.ifremer.fr/doc/00202/31374/29781.pdf |
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| Kano, Yasunori; Chikyu, Eri; Waren, Anders. |
| Adeuomphalus Seguenza, 1876 is a little known genus among the skeneimorph vetigastropods, with very few specimens previously reported alive from the deep sea. We examined newly collected and museum-stored specimens from upper to lower bathyal depths in the Atlantic, Mediterranean, Pacific and Indian Oceans and recognize seven recent species in the genus: A. ammoniformis Seguenza, 1876, A. densicostatus (Jeffreys, 1884), A. trochanter Waren & Bouchet, 2001, A. sinuosus (Sykes, 1925) n. comb., A. guillei n. sp., A. elegans n. sp. and A. collinsi n. sp., along with a fossil species, A. bandeli (Schroder, 1995) from the Lower Cretaceous, Poland. These species are characterized by a minute and colourless shell with almost perfectly planispiral whorls, an... |
| Tipo: Text |
Palavras-chave: Hydrothermal vents; Seguenziidae mollusca; New Zealand; Gastropoda; Trochoidea; Phylogeny; Pacific; Scandinavia; Turbinidae. |
| Ano: 2009 |
URL: https://archimer.ifremer.fr/doc/00205/31660/30092.pdf |
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| Ohkushi, K.; Kennett, J. P.; Zeleski, C. M.; Moffitt, S. E.; Hill, T. M.; Robert, Cyril; Beaufort, L.; Behl, R. J.. |
| The oxygen minimum zone (OMZ) of the late Quaternary California margin experienced abrupt and dramatic changes in strength and depth in response to changes in intermediate water ventilation, ocean productivity, and climate at orbital through millennial time scales. Expansion and contraction of the OMZ is exhibited at high temporal resolution (107-126 year) by quantitative benthic foraminiferal assemblage changes in two piston cores forming a vertical profile in Santa Barbara Basin (569 m, basin floor; 481 m, near sill depth) to 34 and 24 ka, respectively. Variation in the OMZ is quantified by new benthic foraminiferal groupings and new dissolved oxygen index based on documented relations between species and water-mass oxygen concentrations.... |
| Tipo: Text |
Palavras-chave: Oxygen minimum zone; Foraminifera; Ventilation; Oxygen index; Pacific; Hypoxia. |
| Ano: 2013 |
URL: https://archimer.ifremer.fr/doc/00264/37489/35811.pdf |
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| Huber, B.A.. |
| The main aim of the present paper is to delimit ‘true’ Spermophora, i.e. the group of species most closely related to the type species S. senoculata (Dugès). Apart from the type species, only three previously described species are included in this core group (S. estebani Simon, S. paluma Huber, S. yao Huber), together with nine newly described species: S. kerinci, S. tumbang, S. dumoga, S. maros, S. deelemanae, S. palau, S. kaindi, S. luzonica, and S. sumbawa. Except for the Holarctic and anthropophilic type species, all species have limited distributions in Southeast Asia, northeastern Australia, and the Pacific Islands, where they inhabit the leaf litter layer of tropical forests as well as caves. A tight correlation is documented in Spermophora between... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Araneae; Pholcidae; Spermophora; Revision; Taxonomy; Southeast Asia; Pacific; 42.74. |
| Ano: 2005 |
URL: http://www.repository.naturalis.nl/record/210731 |
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| Bertram, I; Tatuava, S. |
| Since 1980 a programme of Fish Aggregation Device (fad) deployment has been carried out in the Cook Islands. Government has deployed all fads between 1 to 3 nautical miles from shore at depths ranging from 800 to 1,600 metres. The fads have undergone various designs with varying degrees of success. The average fad lifespan during the early 1980s was nine months; however, it increased to 18 months, with some fads in operation in excess of 30 months. Each fad cost between nz$ 7,000 and nz$ 9,000 to build and deploy. Since their introduction, fad have been widely accepted as a very effective apparatus in coastal small-scale fishing activities, specifically for pelagic species. Judging by the progressive behaviour of local fishing communities, there is... |
| Tipo: Text |
Palavras-chave: Attracting techniques Economics Fishways Pelagic fisheries Article Geographic Terms: ISE; Pacific; New Zealand Island Terr.; Cook Is. New Zealand Island Terr.; Cook Is.. |
| Ano: 2000 |
URL: http://archimer.ifremer.fr/doc/00042/15323/12654.pdf |
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| Registros recuperados: 23 | |
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