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Articoli di riviste sul tema "Water storage, Papua New Guinea"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 21 febbraio 2023

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1

GREENHILL, A. R., W. A. SHIPTON, A. D. OMOLOSO, B. AMOA e J. M. WARNER. "Bacterial Contamination of Sago Starch in Papua New Guinea". Journal of Food Protection 70, n. 12 (1 dicembre 2007): 2868–72. http://dx.doi.org/10.4315/0362-028x-70.12.2868.

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Sago starch is an important food in lowland Papua New Guinea. Extraction of the starch from the palm and storage were performed by way of traditional methods that have been used for thousands of years. Currently, very little is known about the microbiology of sago starch. Sago samples were collected from areas of high starch utilization and analyzed for the presence of bacterial pathogens and indicator organisms. Storage methods and duration were recorded at the time of collection, and pH and water activity on arrival at the laboratory. Sago starch was found to harbor high levels of fecal contamination, as well as various food pathogens including Salmonella, Bacillus cereus, and coagulase-positive staphylococci. Clostridium perfringens was only present infrequently in samples and in very low numbers, while Listeria monocytogenes was not isolated from sago starch. The presence of high levels of fecal contamination in sago starch is of particular concern, and may contribute to diarrheal disease in rural Papua New Guinea.

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2

Kwan, D. "Fat reserves and reproduction in the green turtle, Chelonia mydas". Wildlife Research 21, n. 3 (1994): 257. http://dx.doi.org/10.1071/wr9940257.

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Measurements were made of the fat and water content of standard cores of fat lining the inner carapace of green turtles caught and butchered by indigenous fishermen in Daru, Papua New Guinea. The amount of depot fat, total lipid and neutral lipid per core varied with the sex, maturity and reproductive status of the turtle. The fat content of cores from prepubescent turtles did not vary with sex. In contrast, cores from adult female turtles had a significantly greater fat content than those from males. Cores from pubescent and vitellogenic females had the highest fat content. Neutral (storage) lipid was significantly higher in cores from vitellogenic females than in those from breeding, which suggests that sub-carapace depot fat is used to fuel the energetically expensive costs of migration and egg production. Cores from breeding females had a significantly higher fat content than those from males, which suggests that the energetic costs of vitellogensis and egg-laying are reflected in sub-carapace fat stores. The greater energetic cost to this fat store for breeding by females is also reflected in the significantly higher water content of the fat of females that had bred in the previous season compared with those in vitellogenesis. In contrast, there was no significant difference between the water content of cores from non-breeding and breeding males.

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3

Rajapakse. "Pebble matrix filtration in Papua New Guinea". Waterlines 21, n. 4 (aprile 2003): 12–14. http://dx.doi.org/10.3362/0262-8104.2003.020.

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4

Sillitoe, Paul, e Karen Hardy. "Living Lithics: ethnoarchaeology in Highland Papua New Guinea". Antiquity 77, n. 297 (settembre 2003): 555–66. http://dx.doi.org/10.1017/s0003598x00092619.

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This paper represents the joint work of two very different specialists. The fieldwork was undertaken by Sillitoe as part of his ethnographic research in Papua New Guinea (PNG) and the interpretative work was done by an archaeologist, Hardy. The work described here represents some of the last direct evidence from users of stone tools. It shows how procurement, manufacture, use, storage and the relative roles of men and women in the process was dependant on what other materials were available – material often sadly elusive in the archaeological record. Discard did not reflect use, but was often guided by the thoughtful wish to avoid cut feet.

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5

Doulman, David J. "Licensing distant-water tuna fleets in Papua New Guinea". Marine Policy 11, n. 1 (gennaio 1987): 16–28. http://dx.doi.org/10.1016/0308-597x(87)90036-4.

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6

Owen, I. L. "Parasitic zoonoses in Papua New Guinea". Journal of Helminthology 79, n. 1 (marzo 2005): 1–14. http://dx.doi.org/10.1079/joh2004266.

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AbstractRelatively few species of zoonotic parasites have been recorded in humans in Papua New Guinea. A greater number of potentially zoonotic species, mostly nematodes, occur in animals but are yet to be reported from humans. Protozoa is the best represented group of those infecting man, withGiardia duodenalis,Cryptosporidium parvum,Cyclospora cayetanesis,Toxoplasma gondii,Sarcocystisspp.,Entamoeba polecki,Balantidium coliand, possibly,Blastocystis hominis. The only zoonotic helminths infecting humans include the trematodeParagonimus westermani, the cestodesHymenolepis nana,H. diminutaand the sparganum larva ofSpirometra erinacea, and the nematodesTrichinella papuaeandAngiostrongylus cantonensisand, possibly,Ascaris suum. Other groups represented are Acanthocephala (Macracanthorhynchus hirudinaceus)), insects (Chrysomya bezziana,Cimexsp.,Ctenocephalidesspp.), and mites (Leptotrombidiumspp. and, possiblySarcoptes scabiei, andDemodexsp.). One leech (Phytobdella lineata) may also be considered as being zoonotic. The paucity of zoonotic parasite species can be attributed to long historical isolation of the island of New Guinea and its people, and the absence until recent times of large placental mammals other than pig and dog. Some zoonotic helminths have entered the country with recent importation of domestic animals, in spite of quarantine regulations, and a few more (two cestodes, one nematode and one tick) are poised to enter from neighbouring countries, given the opportunity. Improvement in water supplies, human hygiene and sanitation would reduce the prevalence of many of these parasites, and thorough cooking of meat would lessen the risk of infection by some others.

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7

SMALES, LESLEY R. "A new acuariid species (Spirurida, Acuariidae) and other nematodes from Hydromys (Muridae, Hydromyinae) from Papua, Indonesia and Papua New Guinea". Zootaxa 1110, n. 1 (17 gennaio 2006): 27. http://dx.doi.org/10.11646/zootaxa.1110.1.3.

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From a survey of the intestinal helminths of 8 common water rats, Hydromys chrysogaster, and 1 Shaw Mayer’s water rat, Hydromys shawmayeri, from Papua New Guinea and 1 H. chrysogaster from Papua Indonesia, an acanthocephalan, Porrorchis hydromuris, a cestode Hymenolepis diminuta, a notocotylid and a psilostomid trematode and the nematodes Heterakis fieldingi, Subulura sp., Toxocara mackerrasae, Trichuris sp., Uncinaria hydromyos were found, all being new records for Hydromys in the Island of New Guinea. Tikusnema intersedis sp. nov. (Acuariidae), differing from its congenors in the number of teeth on the leaves of the pseudolabia and the length and morphology of the left spicule, was described from H. chrysogaster. Similar life styles and diets provide a common link between the rodents hosts of Tikusnema spp. The commonalities between the helminth communities of H. chrysogaster in northern Australia and New Guinea support the hypothesis that H. chrysogaster originated in New Guinea and subsequently migrated south.

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8

Uppal, A. H., e K. K. Komuna. "Bio-mass stimulated absorption refrigerator for food storage in Papua New Guinea". International Journal of Ambient Energy 13, n. 1 (gennaio 1992): 19–26. http://dx.doi.org/10.1080/01430750.1992.9675546.

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9

PERKINS, PHILIP D. "A revision of the water beetle genus Gymnochthebius Orchymont (Coleoptera: Hydraenidae) for Australia and Papua New Guinea". Zootaxa 1024, n. 1 (29 luglio 2005): 1. http://dx.doi.org/10.11646/zootaxa.1024.1.1.

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The Australian and Papua New Guinean species of the water beetle genus Gymnochthebius Orchymont, 1943, are revised, based on the study of 4,904 specimens. The genus is redescribed, and redescriptions are provided for G. australis (Blackburn), G. brisbanensis (Blackburn), G. clarki (Deane), G. levis (Deane), G. lividus (Deane), G. notalis (Deane), and G. tenebricosus (Deane). Lectotypes are designated for Ochthebius australis Blackburn, 1888, and Ochthebius tenebricosus Deane, 1931. Ochthebius fischeri Deane, 1931, and Ochthebius leai Deane, 1931, are synonymized with Ochthebius australis Blackburn, 1888; Ochthebius flavocinctus Deane 1933, is synonymized with Ochthebius lividus Deane, 1933; and Ochthebius angustipennis Deane, 1931, is synonymized with Ochthebius clarki Deane, 1931. Twenty-nine new species are described, and a key to the 36 species known from Australia and Papua New Guinea is given. High resolution digital images of all primary types are presented (online version in color), the male genitalia are illustrated, and Australian geographic distributions are mapped. Only one species, G. clarki, inhabits both Australia and Papua New Guinea; two species, G. bacchusi n. sp. and G. papua n. sp. are endemic to Papua New Guinea; 33 species are endemic to Australia. Members of Gymnochthebius are found at the gravelly/sandy/silty margins of flowing and standing water. A preliminary grouping of species according to microhabitat substrate is presented. Correspondences between ventral morphology and microhabitat preferences suggest that a few species are evolving toward humicolous habits. New species of Gymnochthebius are: G. angulonotus (Queensland, Tinaroo Creek Road via Mareeba), G. bacchusi (Papua New Guinea, Morobe District, c. 7 miles Lae Bulolo Road), G. benesculptus (South Australia, Warburton River, 1 km N White Bull Yard Kalamurina Stn.), G. coruscus (South Australia, Warburton River, 1 km N White Bull Yard Kalamurina Stn.), G. fontinalis (South Australia, Elizabeth (Mound) Springs, 7 km NW Coward Springs R.S.), G. fumosus (New South Wales, Sydney), G. hesperius (Western Australia, Lyndon River Bridge), G. inlineatus (Western Australia, Millstream, creek near Deep Reach), G. lustrosulcus (Queensland, Cloncurry), G. minipunctus (Northern Territory, Palm Valley), G. nanosetus (Northern Territory, Roderick Creek, Gregory National Park), G. nicki (Victoria, Possum Hollow falls, West branch Tarwin River, 5.6 km SSW Allambee), G. nigriceps (South Australia, Mound Spring near Coward Springs), G. papua (Papua New Guinea, Morobe District, ca. 10 km S Garaina Saureri), G. perpunctus (South Australia, Somme Creek, between Angaston and Sedan), G. pluvipennis (South Australia, Warburton

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10

Ghasemi, Hadi, Chris McKee, Mark Leonard, Phil Cummins, Mathew Moihoi, Spiliopoulos Spiro, Felix Taranu e Eric Buri. "Probabilistic seismic hazard map of Papua New Guinea". Natural Hazards 81, n. 2 (20 gennaio 2016): 1003–25. http://dx.doi.org/10.1007/s11069-015-2117-8.

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11

Iddings, Steven Ned. "Informa tion Management for Water and Sanitation in Papua New Guinea". Information Development 10, n. 2 (giugno 1994): 110–13. http://dx.doi.org/10.1177/026666699401000213.

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12

PEŠIĆ, VLADIMIR, e HARRY SMIT. "Second contribution to the knowledge of water mites of the genus Monatractides K. Viets (Acari: Hydrachnidia, Torrenticolidae) from New Guinea, with descriptions of three new species". Zootaxa 3350, n. 1 (19 giugno 2012): 46. http://dx.doi.org/10.11646/zootaxa.3350.1.3.

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New records of seven water mite species of the genus Monatractides K. Viets, 1926 (Acari: Hydrachnidia, Torrenticoli-dae) from streams in West Papua and Papua provinces, New Guinea, Indonesia are presented. Three of them, M. magnus, M. neoaustralicus and M. rivulus, are described as new for science.

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13

PEŠIĆ, VLADIMIR, e HARRY SMIT. "Water mites of the genus Monatractides Viets (Acari: Hydrachnidia, Torrenticolidae) from New Guinea, with descriptions of nine new species". Zootaxa 2779, n. 1 (28 febbraio 2011): 39. http://dx.doi.org/10.11646/zootaxa.2779.1.2.

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New records of water mites of the genus Monatractides Viets, 1926 (Acari: Hydrachnidia, Torrenticolidae) from streams in Papua Province, New Guinea, Indonesia are presented. Nine new species are described: Monatractides novaeguineae, M. papuensis, M. nipsanicus, M. sentanicus, M. abepurus, M. bionus, M. sahuli, M. alticolus and M. humilis. A redescription of Monatractides papillatus (Smit, 1996) is given. A key to the species of Monatractides from Papua Province is presented.

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14

HOESE, DOUGLASS F., e GERALD R. ALLEN. "Description of three new species of Glossogobius from Australia and New Guinea". Zootaxa 1981, n. 1 (16 gennaio 2009): 1–14. http://dx.doi.org/10.11646/zootaxa.1981.1.1.

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The present paper describes two new species of the gobiid fish genus Glossogobius from southern New Guinea and a third related species from northeastern Australia. All three species are restricted to a small number of river systems. Glossogobius bellendenensis, sp. nov. is distinctive in having reduced predorsal scales and fin-ray counts and mental frenum shape. It is restricted to relatively clear water rivers of northeastern Queensland. The closely related, Glossogobius muscorum sp. nov. is also distinctive in reduced predorsal scales and fin-ray count and is found only in the Fly River system of New Guinea. Glossogobius robertsi sp. nov. is distinctive in fin-ray and scale counts and is found in the Fly River in Papua New Guinea and possibly in a river in Papua close to the Fly River. That species has been confused with Glossogobius giuris, which generally occurs in lower reaches of the river.

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15

LEE, BEE YAN, BERTRAND RICHER DE FORGES e PETER K. L. NG. "Deep-sea spider crabs of the family Epialtidae MacLeay, 1838, from PapuaNew Guinea, with a redefinition of Tunepugettia Ng, Komai & Sato, 2017, and descriptions of two new genera (Crustacea: Decapoda: Brachyura: Majoidea)". Zootaxa 4619, n. 1 (18 giugno 2019): 1–44. http://dx.doi.org/10.11646/zootaxa.4619.1.1.

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The deep-water epialtid spider crab (superfamily Majoidea) material collected from recent French expeditions to Papua New Guinea (BIOPAPUA 2010, PAPUA NIUGINI 2012, MADEEP 2014, and KAVIENG 2014) was studied. In addition to several new records for the country, five new species of Oxypleurodon Miers, 1885, Rochinia A. Milne-Edwards, 1875, and Tunepugettia Ng, Komai & Sato, 2017, are described. The taxonomy of Tunepugettia is reappraised, and a new genus, Crocydocinus n. gen., is established, characterised by its smooth ambulatory legs and a distinct male first gonopod structure. Four species from the Bay of Bengal, Sumatra, and Réunion Island, currently placed in Rochinia and Tunepugettia are transferred to Crocydocinus n. gen. and four new species from Papua New Guinea, Philippines, and Vanuatu are described. A new genus, Neophrys n. gen., with one new species from Papua New Guinea, is established, and is characterised by the supraorbital eave being fused with the carapace and the poorly developed pre-orbital angle.

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Kolibongso, Duaitd. "Water Masses Characteristics at the Western Pasific Equator on August 2018". JURNAL SUMBERDAYA AKUATIK INDOPASIFIK 4, n. 1 (24 maggio 2020): 43. http://dx.doi.org/10.46252/jsai-fpik-unipa.2020.vol.4.no.1.77.

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The Western Pacific Equator waters are a meeting place for water masses coming from the Northern and Southern Hemispheres. This study aims to identify the characteristics of water masses formed in the waters of Northern Papua. The study of water mass characteristics in the northern waters of Papua was carried out based on reanalysis data from the World Ocean Atlas (WOA) in August 2018. There were 12 stations divided into 3 transects to be analyzed in this study, namely transect 1 and transect 2 which stretched north-south and transect 3 which stretches east-west. The analysis were performed by method of the core layer and was processed with Sofware Ocean Data View (ODV). The results showed in the waters of North Papua there was a meeting of 2 water masses from the North Pacific and South Pacific. The water masses characteristics in latitudes <5 oLU are affected by surface and intermediates of the South Pacific carried by the Papua New Guinea Coastal Current that flows along the northern coast of Papua New Guinea and into Papua waters and beyond into the waters of the Halmahera Sea. Whereas the mass of water in latitudes > 5 oLU is dominated by surface and intermediate water masses from the North Pacific carried by North Equatorial Counter Current.

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17

Benet-Monico, Ariadna, Sarah Cornell, Paul Chatterton e Lisette Wilson. "Water quality of the Madang Lagoon, Papua New Guinea: A status report". Marine Pollution Bulletin 52, n. 4 (aprile 2006): 458–65. http://dx.doi.org/10.1016/j.marpolbul.2006.01.001.

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18

PERKINS, PHILIP D. "Limnebius acupunctus, a new species of water beetle from Australia and Papua New Guinea (Coleoptera: Hydraenidae)". Zootaxa 749, n. 1 (1 dicembre 2004): 1. http://dx.doi.org/10.11646/zootaxa.749.1.1.

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Limnebius acupunctus, new species, is described, based on a study of 2,013 specimens. This is the first species of the genus to be described from Australia and Papua New Guinea. The wide geographical distribution of the species is mapped, together with illustrations of aedeagal variation. High resolution digital images of the holotype are presented.

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19

Lahan, M. M., R. T. Verave e P. Y. Irarue. "Geochemical study on hot-spring water in West New Britain Province, Papua New Guinea". Geothermal Energy Science 3, n. 1 (13 ottobre 2015): 61–67. http://dx.doi.org/10.5194/gtes-3-61-2015.

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<p><strong>Abstract.</strong> West New Britain Province, which occupies the western part of New Britain Island in Papua New Guinea, is ideally located within an active tectonic region that influences volcanism creating an environment favourable for geothermal activity. Geothermal mapping of surface manifestations reveals high temperature geothermal prospects along the northern coastline of West New Britain Province that are further confirmed by geochemical analysis. The occurrence of geothermal features is confined to the Quaternary Kimbe Volcanics and alluvium in the lowland areas. The features in Talasea appear to be controlled by deep-seated northerly trending faults while structures in Hoskins also appear to be deep seated but have not been identified. The geothermal systems in West New Britain Province have not been drilled, but preliminary reconnaissance geothermal mapping and geochemical analysis reveals four high temperature geothermal prospects suitable for further investigation and development of geothermal energy. These are the Pangalu (Rabili) and Talasea Station geothermal prospects in Talasea and Kasiloli (Magouru) and Silanga (Bakama and Sakalu) geothermal prospects in Hoskins. The calculated reservoir temperatures for these fields are in the range of 245–310 °C. Recommendations are made for further follow-up exploratory investigations.</p>

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20

Ha, Nguyen Thu. "Ecological Study Along the Highlands Highway in Papua New Guinea". International Journal of Advanced Engineering, Management and Science 8, n. 10 (2022): 10–15. http://dx.doi.org/10.22161/ijaems.810.2.

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This ecological survey carried out along the Highlands Highway (71 locations-bridges) between Erap Bridge in Morobe Province to Whagi Bridge, Western Highlands Province. Data and information collection involved physical site observations and informant interviews. The survey used the capture-release method for insects, invertebrates, fish, and plankton; flyover counts were used for birds and informant interviews for mammals and other animals of interest. Terrestrial ecosystem: Common fauna included invertebrates such as Eurema hecabe, Danaus plexippus, Plutella xylostella, and other types of butterflies, Anisoptera, Apis cerena, and black ants (Fomicidae). Vertebrates such as sparrows (Passeridae), willy wagtail (Rhipidura leucophrys), eagle (Hieraaetus weiskei), kingfisher (Alcedinidae), mountain cuscus (Phalanger carmelitae), tree kangaroo (Dendrolagus goodfellowi) and Princess Stephanie’s Astrapia (Astrapia. Stephaniae). Flora across the highlands province commonly appeared bamboo, casuarina oligodon (she-oak), Ficus dammaropsis, coffee, elephant grass (Pennisetum purpureum), cow grass (Axonopus compressus), rain tree (Samanea saman), Piper adancum and banana. In contrast, common and significant flora along plain region included casuarina, pine, leucaena, bamboo, and other anthropogenic grasses, Piper adancum, sunflower (Helianthus annuus), Northofagus grandis, and Ficus. Aquatic ecosystem: Aquatic fauna along the highlands region included carp (Cyprinidae), tilapia (Oreochromis mossambica), juvenile fish, freshwater prawns (Palaemonidae), trout (Oncorhynchus mykiss), and catfish (Arius spp) while aquatic fauna of coastal province comprised of invertebrates like pond skaters, water beetle and tadpoles and invertebrates such as rainbow trout and tilapia. Aquatic flora was limited to green algae at a few locations in the highlands provinces where the water was stagnant or had human impacts, but it was primarily green and brown algae in the plain area. We also found Dendrolagus goodfellowii as an endangered species, while Phalanger carmelitae, Astrapia stephaniae, and Northofagus grandis are endemic but classified as the least concern. The findings indicated modification of habitats throughout the Highlands Highway. The absence of native and endemic species was also noted in most of the locations. Only six sites revealed some primary and secondary forests and vegetation.

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21

Vyverman, W. "Limnological features of lakes on the Sepik-Ramu floodplain, Papua New Guinea". Marine and Freshwater Research 45, n. 7 (1994): 1209. http://dx.doi.org/10.1071/mf9941209.

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The Sepik-Ramu floodplain is one of the major wetland areas in south-eastem Asia. This paper reports preliminary limnological data on 26 lakes on the lower and middle reaches of the floodplain. Conductivity, pH and alkalinity increase from upstream lakes to downstream lakes. A first attempt is made to classify the lakes according to water colour and sediment load, as indicators of local hydrology. Humic-stained black waters can be distinguished from sediment-loaded white waters as well as from a number of transitional mixed waters. All the lakes studied had very shallow optical depths (Secchi depths between 0.25 and 1.84 m), owing to either high gilvin concentrations or turbidity. Extinction coefficients for downward irradiance, measured in three lakes, were higher in surface water layers (Kd = 3.4 - 19.5 m-1) than in deeper layers (Kd = 2.5 - 11.0 m-1). The data suggest that the lakes represent a range of stratification regimes, from nonstratified lakes to lakes stratified over prolonged periods. Local hydrology, basin morphometry and local topography seem to be the major factors controlling stratification regime. Phytoplankton biomass was lowest in black-water lakes (2.3 × 105 �m3 mL-1), and high values (1.7 × 108 �m3 mL-1) were recorded in white-water and stratified mixed-water lakes. The preliminary data suggest that there may be considerable seasonal fluctuation of phytoplankton biomass.

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22

MacFarlane, JW, e R. Moore. "Reproduction of the ornate rock lobster, Panulirus ornatus (Fabricius), in Papua New Guinea". Marine and Freshwater Research 37, n. 1 (1986): 55. http://dx.doi.org/10.1071/mf9860055.

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Based on the examination of 26 499 female and 17 666 male specimens, the reproductive biology of P. ornatus is discussed with spatiotemporal reference to the annual breeding migration from northern Torres Strait to the Gulf of Papua. Migration commences generally in August with ovary development, mating and initial oviposition occurring during migration. Larval release normally commences once the migration has terminated on the reefs of the eastern seaboard in the Gulf of Papua. At the conclusion of the migration, marked segregation of the sexes occurs, with males entering shallow water (< 3 m) before females, who frequent deeper water (3-15 m) until their eggs have hatched. During the breeding season (November- April), females produce up to three broods. Fecundity is determined for 33 females in the carapace size range 75.4-121.0 mm. No significant egg loss during incubation was detected, but there was an indication of a reduction in the size of each subsequent brood. There appears to be a high post-spawning mortality of migratory lobsters. It is likely that the Gulf of Papua is the major source of larval recruitment in the western Coral Sea, including the east coast of Queensland and Torres Strait.

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Jones, S. G., e D. V. Ellis. "Deep water STD at the Misima gold and silver mine, Papua, New Guinea". Marine Georesources & Geotechnology 13, n. 1-2 (gennaio 1995): 183–200. http://dx.doi.org/10.1080/10641199509388283.

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Langer, Martin R. "New Recent foraminiferal genera and species from the lagoon at Madang, Papua New Guinea". Journal of Micropalaeontology 11, n. 1 (1 giugno 1992): 85–93. http://dx.doi.org/10.1144/jm.11.1.85.

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Abstract. Two new genera and eight new species of benthic foraminifera are described from the shallow water, tropical lagoon of Madang, Papua New Guinea. The new hauerinid genus Pseudolachlanella is characterized by juvenile cryptoquinqueloculine, adult almost massiline arranged chambers, and a slitlike, curved aperture with parallel sides and a long, slender, curved miliolid tooth. Pitella haigi n. gen., n. sp. is a new foraminifera with cryptoquinqueloculine arranged chambers, an almost entirely pitted shell surface (pseudopores) and a rounded aperture with a short simple tooth. Among the other species described as new are four hauerinids and two agglutinated foraminifera All new species described here occur sporadically in the shallow water back- and forereef environments of the lagoon (0–55m), and live infaunally and epifaunally in well-oxygenated, fine and coarse grained biogenic sediments. They are absent in muddy, organic-rich, low-oxygen sedimentary environments within bay inlets where variations of salinity are considerable.

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Taylor, Brian, Andrew M. Goodliffe e Fernando Martinez. "How continents break up: Insights from Papua New Guinea". Journal of Geophysical Research: Solid Earth 104, B4 (10 aprile 1999): 7497–512. http://dx.doi.org/10.1029/1998jb900115.

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Bowles, Karl C., Simon C. Apte, William A. Maher, Matthew Kawei e Ross Smith. "Bioaccumulation and biomagnification of mercury in Lake Murray, Papua New Guinea". Canadian Journal of Fisheries and Aquatic Sciences 58, n. 5 (1 maggio 2001): 888–97. http://dx.doi.org/10.1139/f01-042.

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The bioaccumulation of mercury in the food webs incorporating the major piscivorous fish species of Lake Murray, Papua New Guinea, has been characterised. Methylmercury concentrations increased with trophic level and the proportion of total mercury present as methylmercury increased from <1% in plants to 94% in piscivorous fish. Methylmercury bioaccumulation factors (BAFs) were similar to those found in temperate environments, with a typical increase of 1 log unit between planktivore and piscivore trophic levels. The greatest bioaccumulation of methylmercury occurred between seston and the water column (log BAF of 5.36). The bioaccumulation of mercury to levels of regulatory concern by the lake's piscivores was attributable to the biomagnification power of the plankton-based food chain comprising four trophic levels (phytoplankton, zooplankton, planktivore, piscivore) rather than any elevated concentrations of mercury in waters or sediments. The methylmercury concentrations of individual piscivores were positively correlated with both trophic position, as indicated by δ15N measurements, and fish size. Stable-isotope measurements were used to identify fish species where dietary changes occurring with age significantly augmented age-related bioaccumulation of mercury.

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27

Chappell, John, Yoko Ota e Colin Campbell. "Decoupling post-glacial tectonism and eustasy at Huon Peninsula, Papua New Guinea". Geological Society, London, Special Publications 146, n. 1 (1999): 31–40. http://dx.doi.org/10.1144/gsl.sp.1999.146.01.02.

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28

Vlaardingerbroek, Barend. "Water level and temperature and zooplankton population abundances in Lake Surinumu, Papua New Guinea". International Journal of Biometeorology 33, n. 3 (1989): 180–83. http://dx.doi.org/10.1007/bf01084603.

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29

Horwood, Paul, e Andrew Greenhill. "Cholera in Papua New Guinea and the importance of safe water sources and sanitation". Western Pacific Surveillance and Response 3, n. 1 (24 febbraio 2012): 1. http://dx.doi.org/10.5365/wpsar.2011.2.4.014.

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30

Andersen, Nils Møller, e Tom A. Weir. "The marine Haloveliinae (Hemiptera:Veliidae) of Australia, New Caledonia and southern New Guinea". Invertebrate Systematics 13, n. 2 (1999): 309. http://dx.doi.org/10.1071/it97034.

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Abstract (sommario):

Water striders (Hemiptera, Gerromorpha) are common inhabitants of aquatic habitats throughout the world. More than 150 species representing five families have colonised the marine environment, chiefly coastal areas of tropical seas in habitats with a strong tidal influence. The Australian fauna of marine water striders is particularly diverse and species-rich, comprising about 30 species. The present paper deals with the marine Haloveliinae (Veliidae) of Australia, New Caledonia and southern New Guinea. They are classified in two genera, Xenobates Esaki and Halovelia Bergroth. Xenobates mangrove, ovatus, major and spinoides (Queensland), X. lansburyi and chinai (Northern Territory), and X. caudatus (southern Papua New Guinea) are described as new. X. myorensis (Lansbury), X. angulanus (Polhemus) and X. loyaltiensis (China) comb. nov. are redescribed. Descriptive notes are presented for the five species of Halovelia recorded from Australia. Keys to adults of all species are provided and their distributions mapped. Finally, we discuss the zoogeography and ecology of the marine Haloveliinae of Australia.

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31

Rijkse, WC, e BB Trangmar. "Soil-landscape models and soils of Eastern Highlands, Papua-New-Guinea". Soil Research 33, n. 5 (1995): 735. http://dx.doi.org/10.1071/sr9950735.

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Soil-landscape models of three landscapes representative of the Eastern Highlands, Papua New Guinea, have been developed and validated in a study area east of Kainantu. Soils were classified according to Soil Taxonomy. Validation of a model in a strongly dissected landscape predicted soils 88% correctly at Order level, 94% at Suborder and 88% at Great Group and Subgroup level. Soils in weakly dissected landscapes were predicted 96% correctly at Order level, 92% at Suborder and Great Group level, and 88% at Subgroup level. Soils on a simple alluvial terrace system were predicted 100% correctly at Order and Suborder level and 89% correctly at Great Group and Subgroup level. Soils of the strongly dissected landscape are formed from an irregular cover of weathered tephra overlying weathered schist. They are mostly well drained Hapludolls or Argiudolls on steep slopes with Troporthents on slipped slopes. Soils of the weakly dissected landscape are formed from thick weathered tephra. Broad ridges and sideslopes are dominated by Argiaquolls, Argiudolls, Hapludalfs, Hapludolls and Humitropepts with dense concretionary layers of iron and manganese. Soils of the terrace landscape are formed from alluvium and vary from Fluvaquents and Endoaquolls to Hapludolls. General nutrient trends of the soils of the strongly and weakly dissected landscapes show low levels of exchangeable cations, plant available phosphorus and zinc. Profile readily available water is low and clay mineralogy is dominated by kaolinite. Volcanic glass occurs in upper horizons of stable sites. Alluvial soils of the terrace landscape have higher nutrient values, particularly exchangeable magnesium.

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32

McCreath, P. S., C. R. Neill, L. F. Sawatsky e M. C. Mannerstrom. "River intake works for a hydroelectric plant in Papua New Guinea". Canadian Journal of Civil Engineering 17, n. 4 (1 agosto 1990): 578–89. http://dx.doi.org/10.1139/l90-066.

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The Ok Tedi mining development in Papua New Guinea is served by a 50 MW hydroelectric plant completed in 1988. The plant draws water from a run-of-river intake on the Ok Menga, a torrential mountain stream in tropical rain forest subject to frequent flash floods and carrying substantial sediment loads. Design and construction of a diversion weir and intake posed a number of severe problems, such as difficult access, the torrential and flashy nature of the river flows, severe constraints on location due to unstable banks and substrata, and uncertain loads of sediment and debris. Site investigations of a hydro technical nature included monitoring of precipitation, streamflow and flood levels, sampling of suspended sediment, and special measurements of bed material and bed load. On the basis of these investigations, preliminary concepts were developed for a diversion weir and intake chamber. A hydraulic model was then constructed to examine alternative forms of weir construction and to study the hydraulic behaviour of various intake chamber designs with special attention to exclusion and ejection of coarse sediment. The final design was based largely on the indications of the model study. Initial operating experience generally confirmed the validity of the design, although one or two problems arose that were not sufficiently appreciated at the design stage. These were mainly associated with organic debris and with excessive inflow of coarse sediment due to inexperienced operation. Relatively minor changes were made in operational procedures and equipment in order to remedy these problems. Key words: river, intake, sediment, diversion, weir, bedload, debris, torrent.

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33

Goeltenboth, Friedhelm. "Conservation Research Opportunities at the Wau Ecology Institute, Papua New Guinea". Environmental Conservation 12, n. 4 (1985): 366–67. http://dx.doi.org/10.1017/s0376892900034561.

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34

Crowhurst, P. V., K. C. Hill, D. A. Foster e A. P. Bennett. "Thermochronological and geochemical constraints on the tectonic evolution of northern Papua New Guinea". Geological Society, London, Special Publications 106, n. 1 (1996): 525–37. http://dx.doi.org/10.1144/gsl.sp.1996.106.01.33.

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35

Kallow, Simon, Kevin Longin, Natalia Fanega Sleziak, Steven B. Janssens, Filip Vandelook, John Dickie, Rony Swennen, Janet Paofa, Sebastien Carpentier e Bart Panis. "Challenges for Ex Situ Conservation of Wild Bananas: Seeds Collected in Papua New Guinea Have Variable Levels of Desiccation Tolerance". Plants 9, n. 9 (21 settembre 2020): 1243. http://dx.doi.org/10.3390/plants9091243.

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Abstract (sommario):

Ex situ seed conservation of banana crop wild relatives (Musa spp. L.), is constrained by critical knowledge gaps in their storage and germination behaviour. Additionally, challenges in collecting seeds from wild populations impact the quality of seed collections. It is, therefore, crucial to evaluate the viability of seeds from such collecting missions in order to improve the value of future seed collections. We evaluate the seed viability of 37 accessions of seven Musa species, collected from wild populations in Papua New Guinea, during two collecting missions. Seeds from one mission had already been stored in conventional storage (dried for four months at 15% relative humidity, 20 °C and stored for two months at 15% relative humdity, −20 °C), so a post-storage test was carried out. Seeds from the second mission were assessed freshly extracted and following desiccation. We used embryo rescue techniques to overcome the barrier of germinating in vivo Musa seeds. Seeds from the first mission had low viability (19 ± 27% mean and standard deviation) after storage for two months at 15% relative humidity and −20 °C. Musa balbisiana Colla seeds had significantly higher post-storage germination than other species (p < 0.01). Desiccation reduced germination of the seeds from the second collecting mission, from 84 ± 22% (at 16.7 ± 2.4% moisture content) to 36 ± 30% (at 2.4 ± 0.8% moisture content). There was considerable variation between and (to a lesser extent) within accessions, a proportion of individual seeds of all but one species (Musa ingens N.W.Simmonds) survived desiccation and sub-zero temperature storage. We identified that seeds from the basal end of the infructescence were less likely to be viable after storage (p < 0.001); and made morphological observations that identify seeds and infructescences with higher viability in relation to their developmental maturity. We highlight the need for research into seed eco-physiology of crop wild relatives in order to improve future collecting missions.

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36

Rooney, Michelle Nayahamui. "“We Want Development”: Land and Water (Dis)connections in Port Moresby, Urban Papua New Guinea". Contemporary Pacific 33, n. 1 (2021): 1–30. http://dx.doi.org/10.1353/cp.2021.0001.

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37

Osborne, P. L., e R. G. Totome. "Influences of oligomixis on the water and sediment chemistry of Lake Kutubu, Papua New Guinea". Archiv für Hydrobiologie 124, n. 4 (16 giugno 1992): 427–49. http://dx.doi.org/10.1127/archiv-hydrobiol/124/1992/427.

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38

Smith, R. E. W., e K. A. Bakowa. "Utilization of floodplain water bodies by the fishes of the Fly River, Papua New Guinea". SIL Communications, 1953-1996 24, n. 1 (gennaio 1994): 187–96. http://dx.doi.org/10.1080/05384680.1994.11904036.

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39

Davies, Jocelyn M., Richard P. Dunne e Barbara E. Brown. "Coral bleaching and elevated sea-water temperature in Milne Bay Province, Papua New Guinea, 1996". Marine and Freshwater Research 48, n. 6 (1997): 513. http://dx.doi.org/10.1071/mf96128.

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Abstract (sommario):

A coral bleaching event began in February 1996 on reefs in Milne Bay Province, Papua New Guinea. Corals were affected on the shallow fringing reef and to water depths of greater than 20 m on the reef slope. Bleaching was extensive and in the survey area 54% of all corals were bleached. Branching corals (particularly Acropora and Pocillopora) were more severely affected than massive species. Bleaching occurred at the time of the annual maximum monthly sea temperature when long-term sea temperature data sets recorded an anomaly of + 1.29°C. Analysis of the anomalies over the previous 40 years shows a positive trend of 0.09°C per decade.

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40

Qu, Tangdong, e Eric J. Lindstrom. "A Climatological Interpretation of the Circulation in the Western South Pacific*". Journal of Physical Oceanography 32, n. 9 (1 settembre 2002): 2492–508. http://dx.doi.org/10.1175/1520-0485-32.9.2492.

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Abstract (sommario):

Abstract Time-averaged circulation is examined using historical hydrographic data near the Australia and Papua New Guinea coast in the Pacific. By averaging the data along isopycnal surfaces in a 0.5° × 0.5° grid, the authors are able to show many detailed phenomena associated with the narrow western boundary currents, including the vertical structure of the bifurcation latitude of the South Equatorial Current (SEC) and the connection between the Solomon and Coral Seas. The bifurcation latitude of the SEC is found to move southward from about 15°S near the surface to south of 22°S in the intermediate layers. The origin of the Great Barrier Reef Undercurrent (GBRUC) is identified to be at about 22°S. Farther to the north, the GBRUC intensifies underlying the surface East Australian Current, and merges with the North Queensland Current (NQC) at about 15°S. The NQC turns eastward to flow along the Papua New Guinea coast and feeds into the New Guinea Coastal Undercurrent (NGCUC) through the Louisiade Archipelago. Further analysis shows that there is a strong water property connection between the Coral and Solomon Seas, confirming the earlier speculation on the water mass origins of the NGCUC.

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41

Finkl, Charles W., e Richard B. Cathcart. "The “Morning Glory” Project: A Papua New Guinea–Queensland Australia Undersea Freshwater Pipeline". Journal of Coastal Research 27, n. 4 (24 maggio 2011): 607. http://dx.doi.org/10.2112/11a-00006.1.

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42

Møller Andersen, N. "A new genus of marine water striders (Hemiptera, Veliidae) with five new species from Malesia". Insect Systematics & Evolution 22, n. 4 (1991): 389–404. http://dx.doi.org/10.1163/187631291x00192.

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Abstract (sommario):

AbstractThe generic classification of water striders belonging to the veliid subfamily Haloveliinae is discussed and revised and a key to the genera provided. A new genus of marine haloveliines, Haloveloides gen. n., is described. The type species of the new genus, H. papuensis (Esaki) comb. n., is redescribed and recorded from Papua New Guinea, the Bismarck Archipelago, and the Solomons. H. browni (Lansbury) comb. n. is redescribed and recorded from the same areas as the type species. Five new species are described in the genus: H. brevicornis sp. n. (the Moluccas, Sulawesi, Palawan), sundaensis sp. n. (Sunda shelf areas), danpolhemi sp. n. (Palawan), cornuta sp. n. (Luzon), and femoralis sp. n. (Palawan). The cladistic relationships and biogeography of the species are discussed.

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43

Sirenko, B. I. "A chiton with shining shell (Mollusca: Polyplacophora) from deep waters near Papua New Guinea". Ruthenica, Russian Malacological Journal 30, n. 2 (5 aprile 2020): 87–91. http://dx.doi.org/10.35885/ruthenica.2021.30(2).2.

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Abstract (sommario):

A new deep-water polyplacophoran, Stenosemus nitens sp. nov., from Papua New Guinean waters is described. It differs from other species of the genus Stenosemus by having a sculptureless, smooth and shiny surface of the tegmentum, smooth dorsal spicules with only a few small transverse wrinkles on top, and unusual bends of the front margin of the intermediate valves. Within the genus the new species belongs to a limited group of coloured chitons.

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44

MAŃKO, MACIEJ K., AGATA WEYDMANN e GILLIAN M. MAPSTONE. "A shallow-living benthic Rhodaliid siphonophore: citizen science discovery from Papua New Guinea". Zootaxa 4324, n. 1 (26 settembre 2017): 189. http://dx.doi.org/10.11646/zootaxa.4324.1.11.

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Abstract (sommario):

Benthic siphonophores of the family Rhodaliidae (Cnidaria, Hydrozoa) are extremely fragile, difficult to collect, and therefore little studied. Only a few records exist worldwide, so their ecology remains largely unknown. Rhodaliids have been found at most depth horizons, but until now were believed to mainly inhabit deeper water over continental shelves, with only a few records from ca. 100 m. In this paper, a new rhodaliid is described based on an underwater photograph provided by a recreational diver via Facebook. This observation was made in Milne Bay (Papua New Guinea) at a depth of 26–27 m, and constitutes the shallowest record so far for any rhodaliid. The specimen was tentatively identified as Archangelopsis typica based on observable morphological characters and an approximate estimate of connectivity between all rhodaliid species in the Indo-Pacific region. Additionally, we highlight the scientific potential of citizen science.

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45

Jablonski, D., S. Pono e O. A. Larsen. "PROSPECTIVITY OF THE DEEPWATER GULF OF PAPUA AND SURROUNDS IN PAPUA NEW GUINEA (PNG)—A NEW LOOK AT A FRONTIER REGION". APPEA Journal 46, n. 1 (2006): 179. http://dx.doi.org/10.1071/aj05011.

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Abstract (sommario):

Despite limited well control and paucity of seismic data, a regional study of the deepwater portion of the Gulf of Papua, Papua New Guinea (PNG), indicates a number of large structures at a variety of stratigraphic levels that are capable of holding significant volumes of hydrocarbons. The main structural elements east of the Fly River Platform the Pandora Ridge, Pandora Trough, Aure Trough, Port Moresby Trough and the northern portion of the Eastern Plateau were established during the Paleozoic and further enhanced by Late Cretaceous to Early Paleocene Coral Sea rifting in the southeast. Structuring in the region is mostly basement involved and extensional, and is overprinted by a later compressional pulse. Extensional and compressional regimes produce many potential traps. To date, exploration in the Gulf of Papua has been sporadic and mainly focussed in shallow water depths. The new reprocessed seismic data indicate the following Paleozoic to Recent plays, some of which contain multiple reservoir-seal pairs, sourced by non-marine and marine source rocks:extensional Paleozoic rift fault blocks;Upper Jurassic to Lower Cretaceous turbidites (Iagifu- Hedina-Toro sandstone equivalents);Campanian to Middle Paleocene Coral Sea synrift sandstone and basin floor fan equivalents (Pale/Barune Formations and equivalents);Middle Paleocene break-up unconformity fault blocks and intra-basinal highs;Upper Paleocene to Lower Eocene Pima Sandstone equivalent associated with the Middle Paleocene uplift and erosion;Oligocene to Lower Miocene lowstand deltas and turbidites;Miocene to Recent biohermal build-ups (possibly including a new limestone high, the Box Ridge, in front of the Pandora Ridge); Karstified Darai Limestone equivalent sealed by Aure Beds claystones;Miocene to Recent lowstand deltas and turbidites;Eocene to Pliocene stratigraphic onlaps flanking main structural highs; and,compressional plays associated with the Pliocene to Recent collision of the PNG and Pacific plates.

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46

POLHEMUS, DAN A. "New distributional records for Gyrinidae (Insecta: Coleoptera) on New Guinea and nearby islands, with a checklist of the New Guinea species". Zootaxa 2900, n. 1 (31 maggio 2011): 51. http://dx.doi.org/10.11646/zootaxa.2900.1.3.

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Abstract (sommario):

New distribution records are provided for the following 16 taxa of Gyrinidae on New Guinea, some of which have not been documented since their original type series were collected in the late 1800s or early 1900s: Porrorhynchus (Rhomborhynchus) depressus depressus Régimbart; Porrorhynchus (Rhomborhynchus) depressus misoolensis Ochs new combination; Dineutus (Rhombodineutus) pectoralis pectoralis Régimbart; Dineutus (Rhombodineutus) pectoralis biakensis Brinck; Dineutus (Rhombodineutus) pectoralis monticola Ochs; Dineutus (Rhombodineutus) heurni Zimmerman; Dineutus (Rhombodineutus) silenus Brinck; Dineutus (Rhombodineutus) sinuaticollis Zimmerman; Dineutus (Rhombodineutus) virescens Ochs; Dineutus (Rhombodineutus) chalybeus Zimmerman; Dineutus (Rhombodineutus) helleri stueberi Ochs; Dineutus (Rhombodineutus) tetracanthus tetracanthus Régimbart; Dineutus (Merodineutus) archboldianus Ochs; Dineutus (Merodineutus) loriae Régimbart; Dineutus (Merodineutus) macrochirus Régimbart; and Dineutus (Spinosodineutes) neohollandicus Ochs. New distribution records are also provided for Dineutus (Dineutus) regimbarti regimbarti Régimbart from East Timor. The type-locality of Dineutus (Rhombodineutus) chalybeus is constrained to Yule Island, on the Gulf of Papua. Updated distribution maps are provided for all the New Guinea species above, a table is included summarizing currently documented ranges of elevation and water temperature for all species treated, and a checklist of all species of Gyrinidae currently known from New Guinea and nearby islands is provided, with species assigned to putative areas of freshwater endemism within the island.

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47

Hill, Kevin C., Katie Lucas e Keith Bradey. "Structural styles in the Papuan Fold Belt, Papua New Guinea: constraints from analogue modelling". Geological Society, London, Special Publications 348, n. 1 (2010): 33–56. http://dx.doi.org/10.1144/sp348.3.

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48

FILER, COLIN. "Interdisciplinary perspectives on historical ecology and environmental policy in Papua New Guinea". Environmental Conservation 38, n. 2 (10 febbraio 2011): 256–69. http://dx.doi.org/10.1017/s0376892910000913.

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Abstract (sommario):

SUMMARYPapua New Guinea (PNG) has been the site of a great deal of scientific work, and a fair amount of interdisciplinary debate, within the broad field of historical ecology, which encompasses the study of indigenous society-environment relationships over different time periods. However, this in itself provides no guarantee that scientists engaged in such debate will have a greater influence on the formulation of environmental conservation policies in a state where indigenous decision makers now hold the levers of political power. Five environmental policy paradigms which have emerged in the course of public debate about environmental conservation in PNG over the past half century; the wildlife management, environmental planning, biodiversity conservation, ecosystem assessment, and carbon sequestration paradigms. Each paradigm has framed a distinctive form of interdisciplinary debate about indigenous society-environment relationships within a contemporary political framework. However, a further connection can be drawn between the role of interdisciplinary debate in an evolving national policy framework and the history of scientific debate about the nature of indigenous society-environment relationships in the pre-colonial era. This connection places a distinctive emphasis on the relationship between indigenous agricultural practices and management of the national forest estate for reasons which are themselves a contingent effect of the nature of European colonial intervention over the course of the last century and a half. This particular bias in the relationship between historical ecology and environmental policy has lasted down to the present day. PNG's environmental policy problems are unlikely to have any rational or sensible solution in the absence of a better scientific understanding of the complexity of indigenous society-environment relationships. Scientists need to understand the complexity of the environmental policy process as a historical process in its own right in order to work out which policy problems offer both the scope and the incentive to sustain specific forms of interdisciplinary debate that are likely to produce better policy outcomes.

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49

Karlen, David J., Roy E. Price, Thomas Pichler e James R. Garey. "Changes in Benthic Macrofauna Associated with a Shallow-Water Hydrothermal Vent Gradient in Papua New Guinea". Pacific Science 64, n. 3 (luglio 2010): 391–404. http://dx.doi.org/10.2984/64.3.391.

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50

Sokolov, Serguei, e Stephen Rintoul. "Circulation and water masses of the southwest Pacific: WOCE Section P11, Papua New Guinea to Tasmania". Journal of Marine Research 58, n. 2 (1 marzo 2000): 223–68. http://dx.doi.org/10.1357/002224000321511151.

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