Identification of Mid- To Final Stage Phyllosoma Larvae of the Genus Panulirus White, 1847 collected in the Ryukyu Archipelago

Crustaceana ◽  
2006 ◽  
Vol 79 (6) ◽  
pp. 745-764 ◽  
Author(s):  
Seinen Chow ◽  
Harumi Yamada ◽  
Nobuaki Suzuki
Keyword(s):  
Final Stage ◽  
Ryukyu Archipelago ◽  
Phyllosoma Larvae

Distribution of late-stage phyllosoma larvae of Panulirus japonicus in the Kuroshio Subgyre

2001 ◽  
Vol 52 (8) ◽  
pp. 1201 ◽  
Author(s):  
Nariaki Inoue ◽  
Hideo Sekiguchi
Keyword(s):  
Late Stage ◽  
Final Stage ◽  
Kuroshio Current ◽  
Early Summer ◽  
Ryukyu Archipelago ◽  
Larval Recruitment ◽  
Panulirus Japonicus ◽  
Japanese Waters ◽  
Phyllosoma Larvae ◽  
The Kuroshio

The present study was undertaken in waters south of the Kuroshio Subgyre to examine and/or test Sekiguchi’s (1985, 1997) hypothesis about the larval recruitment processes of Panulirus japonicus by which the benthic populations of the species are maintained in Japanese waters. A total of 61 Panulirus phyllosoma larvae were collected in early summer; 56 belonged to P. japonicus, of which 30 were in the final stage, 24 in the subfinal stage, and 2 were too heavily damaged to permit identification of the stage. Most of the final-stage phyllosoma larvae were found in the northern part of the waters east of the Ryukyu Archipelago, whereas the larvae in the subfinal stage were found in the southern part. The present study supports Sekiguchi’s hypothesis that late-stage P. japonicus phyllosoma larvae are transported by the Kuroshio Countercurrent into waters east of the archipelago and then again enter the Kuroshio Current.

scholarly journals Scyllarus arctus (Crustacea: Decapoda: Scyllaridae) final stage phyllosoma identified by DNA analysis, with morphological description

2010 ◽  
Vol 91 (2) ◽  
pp. 485-492 ◽  
Author(s):  
Ferran Palero ◽  
Guillermo Guerao ◽  
Paul F. Clark ◽  
Pere Abelló
Keyword(s):  
Final Stage ◽  
Dna Analysis ◽  
Detailed Examination ◽  
Sympatric Species ◽  
Western Mediterranean ◽  
Molecular Techniques ◽  
Nucleotide Sequence Analysis ◽  
Morphological Description ◽  
Western Mediterranean Sea ◽  
Phyllosoma Larvae

Advanced stages of Scyllarus phyllosoma larvae were collected by demersal trawling during fishery research surveys in the western Mediterranean Sea in 2003–2005. Nucleotide sequence analysis of the mitochondrial 16S rDNA gene allowed the final-stage phyllosoma of Scyllarus arctus to be identified among these larvae. Its morphology is described and illustrated. This constitutes the second complete description of a Scyllaridae phyllosoma with its specific identity being validated by molecular techniques (the first was S. pygmaeus). These results also solved a long lasting taxonomic anomaly of several species assigned to the ancient genus Phyllosoma Leach, 1814. Detailed examination indicated that the final-stage phyllosoma of S. arctus shows closer affinities with the American scyllarid Scyllarus depressus or with the Australian Scyllarus sp. b (sensu Phillips et al., 1981) than to its sympatric species S. pygmaeus.

Final-stage phylosoma larvae of Scyllarus species (Crustacea : Decapoda : Scyllaridae) from shelf waters of the Great Barrier Reef

1989 ◽  
Vol 3 (2) ◽  
pp. 123 ◽  
Author(s):  
BM Barnett
Keyword(s):  
Great Barrier Reef ◽  
Final Stage ◽  
Shelf Area ◽  
Barrier Reef ◽  
Phyllosoma Larvae

Samples of macrozooplankton collected from the shelf area of the Great Barrier Reef (between 18°35′S. and 19°10′S., and 146°30′E. and 147°00′E.) contained phyllosoma larvae of 12 different species of scyllarid lobster. All species were represented at the final stage, three as complete larval series and the remainder as incomplete series. Five species have been identified: Thenus orientalis, Scyllarus martensii, S. demani, S. rugosus and S. sordidus. In this paper the final-stage larvae of S. demani, S. rugosus, S. sordidus and six unidentified Scyllarus species, referred as Scyllarus species A–F, are described and compared with previous references in the literature, and a key developed for their separation.

Final-stage phyllosoma of Palinustus A. Milne-Edwards, 1880 (Crustacea: Decapoda: Achelata: Palinuridae)—The first complete description

Zootaxa ◽  
2010 ◽  
Vol 2403 (1) ◽  
pp. 42 ◽  
Author(s):  
FERRAN PALERO ◽  
GUILLERMO GUERAO ◽  
PAUL F. CLARK ◽  
PERE ABELLÓ
Keyword(s):  
Natural History ◽  
Final Stage ◽  
Morphological Analysis ◽  
Natural History Museum ◽  
Length Ratio ◽  
History Museum ◽  
Phyllosoma Larvae ◽  
Antennular Peduncle

Four rare palinurid phyllosoma larvae, one mid-stage and three final stage, were found among the unclassified collections in the Crustacea Section, Natural History Museum, London. Detailed morphological analysis of the larvae indicated that they belong to several Palinustus species given the presence of incipient blunt-horns, length of antennula, length ratio of segments of antennular peduncle, distribution of pereiopod spines, and shape of uropods and telson. Moreover, the size of the final-stage larvae agrees with that expected given the size of the recently described puerulus stage of Palinustus mossambicus. This constitutes the first description of a complete phyllosoma assigned to Palinustus species. The phyllosoma described in the present study include the largest Palinuridae larva ever found.

Descriptions of the nisto stage of Scyllarus demani Holthuis, two unidentified Scyllarus species, and the juvenile of Scyllarus martensii Pfeffer (Crustacea : Decapoda : Scyllaridae), reared in the laboratory; and behavioural observations of the nistos of S. demani, S. martensii and Thenus orientalis (Lund)

1986 ◽  
Vol 37 (5) ◽  
pp. 595 ◽  
Author(s):  
BM Barnett ◽  
RF Hartwick ◽  
NE Milward
Keyword(s):  
Great Barrier Reef ◽  
Final Stage ◽  
Plankton Sample ◽  
Barrier Reef ◽  
Juvenile Phase ◽  
Phyllosoma Larvae ◽  
Shelf Region

Live final-stage phyllosoma larvae of T. orientalis, S. martensii, S. demani, and an unidentified specimen, Scyllarus sp. A, were obtained from the mid-shelf region of the Great Barrier Reef. While held in the laboratory, larvae of all species metamorphosed to the subsequent, nisto, stage; the nisto of S. martensii developed further to the first juvenile phase. An additional, nisto, Scyllarus sp. B, obtained in a plankton sample, remains unidentified. In this paper, the nistos of S. demani, Scyllarus sp. A, and Scyllarus sp. B, and the juvenile of S. martensii are described; and behavioural observations of live material, including nistos of T. orientalis, are discussed.

At the final stage of the global crisis: Economic tasksin 2017-2019

2018 ◽  
pp. 5-29 ◽  
Author(s):  
V. A. Mau
Keyword(s):  
Economic Growth ◽  
Final Stage ◽  
Government Regulation ◽  
Inflation Targeting ◽  
Social Dynamics ◽  
Growth Stimulation ◽  
Central Banks ◽  
Economic Area ◽  
National Trends

The paper deals with the global and national trends of economic and social development at the final stage of the global structural crisis. Special attention is paid to intellectual challenges economists will face with in the post-crisis world: prospects of growth without inflation, new global currencies and the role of cryptocurrencies, central banks independence and their role in economic growth stimulation, new tasks and patterns of government regulation, inequality and growth. Special features of Russian post-crisis development are also under consideration. Among them: prospects of macroeconomic support of growth, inflation targeting, new fiscal rule, social dynamics and new challenges to welfare state. The paper concludes that the main obstacles for economic growth in Russia are concentrated in the non-economic area.

Light Dramaturgy as an Element of an Integrated Approach to the Creation of Museum Expositions and Exhibition Projects

2019 ◽  
pp. 108-114
Author(s):  
Nicolay R. Vorobyov
Keyword(s):  
Final Stage ◽  
Historical Development ◽  
Integrated Approach ◽  
Lighting Design ◽  
Lighting System ◽  
Scientific Concepts ◽  
Hands On ◽  
Artistic Styles ◽  
The Creation

Architectural and artistic construction of museum is one of the most complex genres in environment development and design, with its inherent qualities, means of expressiveness, principles of environment and image development, scientific concepts, in the context of historical development, artistic styles and trends. The author of the article considers the artistic lighting design in isolation from the integral dramaturgy of the project to be deeply flawed, and the setting of accent lighting at the final stage Ц to be simple, but not outstanding. Based on extensive hands-on experience in the construction of museum expositions, the author of the article reveals some peculiarities, especially significant to the participants of the lighting system setting for museums and other cultural facilities.

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