Biology of Oxyeleotris heterodon and its major prey, Ophieleotris aporos, two floodplain sleepers (Pisces: Eleotrididae) of the Sepik River fishery, northern Papua New Guinea

1992 ◽  
Vol 34 (1) ◽  
pp. 51-64 ◽  
Author(s):  
David Coates
Keyword(s):  
Papua New Guinea ◽  
New Guinea ◽  
Sepik River ◽  
River Fishery

Sediment export from the Sepik River, Papua New Guinea: evidence for a divergent sediment plume

2000 ◽  
Vol 20 (16) ◽  
pp. 2239-2266 ◽  
Author(s):  
G.C Kineke ◽  
K.J Woolfe ◽  
S.A Kuehl ◽  
J.D Milliman ◽  
T.M Dellapenna ◽  
...  
Keyword(s):  
Papua New Guinea ◽  
New Guinea ◽  
Sepik River ◽  
Sediment Export

Some chemical features of two Papuan fresh waters (Papua New Guinea)

1976 ◽  
Vol 27 (3) ◽  
pp. 467 ◽  
Author(s):  
T Petr
Keyword(s):  
River Water ◽  
Papua New Guinea ◽  
Chemical Weathering ◽  
New Guinea ◽  
Tropical River ◽  
Dominant Source ◽  
Sepik River ◽  
The World ◽  
Port Moresby ◽  
Total Salinity

The Purari River in Papua (Papua New Guinea) is a tropical river with ionic dominance similar to that of the world average river water, i.e. Ca > Mg > Na > K, and HCO3 > (SO4?) > Cl. As the sulphate concentration was not determined, the anionic trend still needs to be further investigated. The Na:Ca as well as the Ca + Mg:Na + K ionic ratios suggest that chemical weathering in the highlands is the dominant source of dissolved solids, and that it determines the chemistry of the lower course of the Purari River. Among the waters investigated, the Purari River, in its lower course, has a total salinity higher than that of the Sirinumu impoundment, and lower than that of the Sepik River. The low concentration of solutes in the Sirinumu impoundment near Port Moresby indicates that oligotrophication can be expected in reservoirs built on Papuan rivers.

The Water-fern Salvinia molesta in the Sepik River, Papua New Guinea

1980 ◽  
Vol 7 (2) ◽  
pp. 115-122 ◽  
Author(s):  
David S. Mitchell ◽  
Tomislav Petr ◽  
Anthony B. Viner
Keyword(s):  
United Nations ◽  
Papua New Guinea ◽  
New Guinea ◽  
Chemical Analyses ◽  
Complete Elimination ◽  
Salvinia Molesta ◽  
Sago Palm ◽  
Slowing Down ◽  
Sepik River ◽  
Physical Impact

Since 1977 the Sepik River backwaters between Pagwi and Angoram in Papua New Guinea have become increasingly covered by the exotic water-fern Salvinia molesta. By May 1979, Salvinia covered about 80 km2. Water chemical analyses for dissolved substances give no evidence that nutrients in the Sepik River and ‘lagoons’ might become limiting enough to affect the Salvinia population. The physical impact of the plant is reflected especially in the decline of the fisheries for Saltfish Tilapia (Sarotherodon mossambicus), crocodile hunting, collection of sago-palm, and in the slowing down or complete elimination of water transport. As a consequence, people in a number of villages are unable to reach markets and children cannot go to schools.A programme of management has been formulated which will involve the United Nations, central and provincial governments, and local inhabitants. However, it should be understood that there is little chance of complete elimination of the weed from Sepik River backwaters.

A distinctive addition to the tree flora of Papua New Guinea: Helicia woxvoldiana sp. nov. (Proteaceae), a large-flowered myrmecophyte from the upper Sepik

Phytotaxa ◽  
2014 ◽  
Vol 172 (2) ◽  
pp. 94
Author(s):  
Wayne Takeuchi
Keyword(s):  
New Species ◽  
Papua New Guinea ◽  
River Basin ◽  
New Guinea ◽  
Sepik River

Helicia woxvoldiana (Proteaceae) is described from the Sepik River basin in Papua New Guinea, from classical localities on the Kaiserin-Augusta-Fluss itinerary of 1912–13. The new species is a canopy myrmecophyte with the largest flowers in Papuasian Helicia.

Climate, sea level and tectonic controls on sediment discharge from the Sepik River, Papua New Guinea during the Mid- to Late Pleistocene

2019 ◽  
Vol 415 ◽  
pp. 105954 ◽  
Author(s):  
I.W. Aiello ◽  
S.C. Bova ◽  
A.E. Holbourn ◽  
D.K. Kulhanek ◽  
A.C. Ravelo ◽  
...  
Keyword(s):  
Sea Level ◽  
Papua New Guinea ◽  
Late Pleistocene ◽  
New Guinea ◽  
Sediment Discharge ◽  
Sepik River
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