Six new species of the gutless genus Olavius (Annelida: Clitellata: Tubificidae) from New Caledonia

Zootaxa ◽  
2007 ◽  
Vol 1400 (1) ◽  
pp. 45-58
Author(s):  
CHRISTER ERSÉUS ◽  
ULRIKA BERGFELDT
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Male Genitalia ◽  
New Caledonia ◽  
Pacific Region ◽  
West Pacific ◽  
North West ◽  
West Pacific Ocean ◽  
South West ◽  
Shallow Water Sediments

Six species of the gutless marine tubificid genus Olavius Erséus, 1984 (Phallodrilinae), O. paraloisae sp. nov., O. amplectens sp. nov., O. isomerus sp. nov., O. fidelis sp. nov., O.lifouensis sp. nov., and O. nivalis sp. nov., are described from shallow-water sediments in New Caledonia (including the Loyalty Islands), in the South West Pacific Ocean. Olavius amplectus is similar (but not necessarily closely related) to a North West Atlantic species. The others appear closely related to previously described taxa in the Indo-West Pacific region, but they differ in the number of secondary body annuli, the number, shape and arrangement of chaetae, or in details of the male genitalia and/or spermathecae. Moreover, fixed (contracted) specimens of O. nivalis measured up to 34 mm length, which makes it one of the largest species of gutless Phallodrilinae known to date.

Six new species of the gutless genus Olavius (Annelida: Clitellata: Tubificidae) from New Caledonia

Zootaxa ◽  
2007 ◽  
Vol 1400 (1) ◽  
pp. 45
Author(s):  
CHRISTER ERSÉUS ◽  
ULRIKA BERGFELDT
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Male Genitalia ◽  
New Caledonia ◽  
Pacific Region ◽  
West Pacific ◽  
North West ◽  
West Pacific Ocean ◽  
South West ◽  
Shallow Water Sediments

Six species of the gutless marine tubificid genus Olavius Erséus, 1984 (Phallodrilinae), O. paraloisae sp. nov., O. amplectens sp. nov., O. isomerus sp. nov., O. fidelis sp. nov., O.lifouensis sp. nov., and O. nivalis sp. nov., are described from shallow-water sediments in New Caledonia (including the Loyalty Islands), in the South West Pacific Ocean. Olavius amplectus is similar (but not necessarily closely related) to a North West Atlantic species. The others appear closely related to previously described taxa in the Indo-West Pacific region, but they differ in the number of secondary body annuli, the number, shape and arrangement of chaetae, or in details of the male genitalia and/or spermathecae. Moreover, fixed (contracted) specimens of O. nivalis measured up to 34 mm length, which makes it one of the largest species of gutless Phallodrilinae known to date.

New genus (Entokrohnia) and new species of family Tokiokaispadellidae Salvini-Plaven, 1986 (Сhaetognatha) from south-west Pacific Ocean

2012 ◽  
Vol 21 (2) ◽  
pp. 318-322
Author(s):  
A.P. Kassatkina
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
New Genus ◽  
West Pacific ◽  
West Pacific Ocean ◽  
South West ◽  
A New Species

A detailed description and figures of a new species Entokrohnia entiptera sp. nov. are presented. Diagnoses of the families Protoeukrohniidae fam. nov. and Tokiokaispadellidae Salvini-Plaven, 1986, and all the three genera of the latter family: Tokiokaispadella Kassatkina, 1980, Aberrospadella Kassatkina 1971, and Entokrohnia gen. nov. are given.

Settlement, post-settlement mortality and growth of the damselfish Chromis fumea (Pisces: Pomacentridae) on two artificial reefs in New Caledonia (south-west Pacific ocean)

2000 ◽  
Vol 80 (6) ◽  
pp. 1111-1118 ◽  
Author(s):  
Laurent Wantiez ◽  
Pierre Thollot
Keyword(s):  
Pacific Ocean ◽  
Growth Phase ◽  
New Caledonia ◽  
Phase 1 ◽  
Initial Density ◽  
Size Class ◽  
Artificial Reefs ◽  
West Pacific ◽  
West Pacific Ocean ◽  
South West

Density and size of Chromis fumea (Pisces: Pomacentridae) were regularly monitored during 13 months (from August 1996 to August 1997), on two artificial reefs in New Caledonia (south-west Pacific ocean): a ship-wreck (CT2) just after scuttling, and an assemblage of iron boxes (Caissons) sunk more than 50 years ago. The settlement of C. fumea was first observed 20 August 1996 and lasted 20 days. At the beginning the recruits were 1 cm size-class fish and at the end 2 cm size-class. This major settlement phase was again observed one year later (September 1997). A second minor settlement phase occurred in December 1996 on CT2. Significant immigration of adults was also observed between November 1996 (6 cm) and April 1997 (7 cm), indicating that this species is capable of medium range migration (>50 m). Population size decreased by 87·8% between the settlement of juveniles and the first immigration phase of adults. The final density of the 1996 cohort was 10·5% of the initial input of recruits on CT2 and 19·3% on Caissons. Initial density of recruits was 3·4 times higher on CT2 than on Caissons, whereas density of juveniles was similar at the end of the survey, indicating that post-settlement mortality was greater on CT2. Chromis fumea von Bertalanffy growth models were similar on CT2 and Caissons. This short-lived species is characterized by an initial rapid growth phase (K>3·36 y−1), with the fish reaching 68·5% of L∞ in three months, and a second slower growth phase (1 cm in ten months).

scholarly journals Corrigendum to

2021 ◽  
pp. 105644
Author(s):  
Ravi Shankar Pandey ◽  
Yuei-An Liou
Keyword(s):  
Pacific Ocean ◽  
Tropical Storm ◽  
Storm Tracks ◽  
West Pacific ◽  
North West ◽  
Atmospheric Research ◽  
West Pacific Ocean ◽  
The North
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