Comparison of the Salinity Range Tolerated by Teredinids (Mollusca: Teredinidae) under Controlled Conditions with that Observed in an Estuary in Papua New Guinea

Population fluctuations seen in teredinid species settling in estuarine waters at Marshall Lagoon, Papua New Guinea, over a 3-year period were correlated with the salinlty fluctuations to which they had been subjected. From these calculations the salinity range in which the 10 most common species settled was determined. Aquaria studies were designed to test salinity tolerance ranges of these teredinids under controlled conditions by observing the effect of different salinities on the growth and survival of juveniles. Several teredinids grew in salinities in the aquarium which were outside the range in which they were found in the estuary, and early larval development to the umbo stage in two larviparous species occurred in salinities lower than that in which adults were found in the field. From these observations it would appear that salinity tolerances of adults, and possibly presettlement larvae, are not the most important factors limiting teredinid distribution in an estuary.

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The spawning, embryonic and early larval development of the green wrasse Labrus viridis (Linnaeus, 1758) (Labridae) in controlled conditions

Animal Reproduction Science ◽

10.1016/j.anireprosci.2011.01.013 ◽

2011 ◽

Vol 125 (1-4) ◽

pp. 196-203 ◽

Cited By ~ 3

Author(s):

V. Kožul ◽

N. Glavić ◽

P. Tutman ◽

J. Bolotin ◽

V. Onofri

Keyword(s):

Larval Development ◽

Controlled Conditions ◽

Early Larval Development

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A new species ofPerkinsiana(Sabellidae, Polychaeta) from Papua New Guinea; with a description of larval development

Ophelia ◽

10.1080/00785326.1996.10432465 ◽

1996 ◽

Vol 45 (2) ◽

pp. 101-114 ◽

Cited By ~ 11

Author(s):

G.W. Rouse

Keyword(s):

New Species ◽

Larval Development ◽

Papua New Guinea ◽

New Guinea ◽

A New Species

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Freshwater turtles of the Kikori Drainage, Papua New Guinea, with special reference to the pig-nosed turtle, Carettochelys insculpta

Wildlife Research ◽

10.1071/wr07120 ◽

2008 ◽

Vol 35 (7) ◽

pp. 700 ◽

Cited By ~ 10

Author(s):

Arthur Georges ◽

Erika Alacs ◽

Matthew Pauza ◽

Felix Kinginapi ◽

Amos Ona ◽

...

Keyword(s):

Papua New Guinea ◽

Linguistic Diversity ◽

New Guinea ◽

Common Species ◽

Freshwater Turtle ◽

Freshwater Turtles ◽

Sand Bars ◽

Introduced Populations ◽

Spotted Turtle ◽

Lowland Rainforest

A survey of the Kikori River drainage of the Gulf Province of Papua New Guinea identified four species of freshwater turtle. The pig-nosed turtle Carettochelys insculpta and the southern New Guinea soft-shelled turtle Pelochelys bibroni are riverine species. The New Guinea spotted turtle Elseya novaeguineae lives primarily in the tidal freshwater creeks and streams, flooded sinkholes and swamps of the lowland rainforest. The New Guinea painted turtle Emydura subglobosa resides almost exclusively in forest sinkholes and swamps. Pelochelys bibroni was the least-common species, and is probably locally endangered. Greatest turtle diversity occurred in the Karst Plains of the Kikori sub-basin, where there is a greater diversity of habitat available to turtles. Lowest diversity occurred in the highlands, where turtles were present in very low density as introduced populations, brought in from the Kikori lowlands, Mount Bosavi and the Western Province by visiting relatives. Linguistic diversity concurred with turtle diversity of the regions in which the languages were spoken. C. insculpta nests both on riverine sand beaches and on coastal beaches, sand spits and isolated sand bars where the Kikori River discharges into the Gulf of Papua. Adult females and eggs of C. insculpta are harvested heavily by local people for local consumption.

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