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108 results for “Marquesas Islands”
FIG. 9 in Stomatopoda (Crustacea) from the Marquesas Islands: results of MUSORSTOM 9
FIG. 9. — Oratosquilla fabricii (Holthuis, 1941); A-D, postlarva tl 29 mm (stn DW1241); A, anterior cephalon; B, TS5-8, right dorsal; C, raptorial claw carpus, right lateral; D, uropodal protopod, right ventral; E-H, juvenile tl 30 mm (stn DW1214); E, anterior cephalon; F, TS5-8, right dorsal; G, raptorial claw carpus, right lateral; H, uropodal protopod, right ventral; I-L, tl 63 mm (stn CP1187); I, anterior cephalon; J, TS5-8, right dorsal; K, raptorial claw, right lateral; L, uropodal protopod, right ventral. Scale bar: A-H, 1.5 mm; I-L, 3 mm.
FIG. 8 in Stomatopoda (Crustacea) from the Marquesas Islands: results of MUSORSTOM 9
FIG. 8. — Neoanchisquilla tuberculata Ahyong, 1998; A, B, late pelagic larva tl 32 mm (stn CP1195); A, dorsal; B, carapace, right lateral; C-F, postlarva tl 31 mm (between Society Islands and Marquesas); C, anterior cephalon, dorsal; D, TS5-8, right dorsal; E, AS5-6, telson and uropod, dorsal; F, submedian telson teeth; G-I, juvenile tl 35 mm (stn DW1210); G, anterior cephalon, dorsal; H, TS5-8, right dorsal; I, AS5-6, telson and uropod, dorsal. Scale bar: A-E, 4 mm; F-I, 2 mm.
FIG. 7. — Acanthosquilla crosnieri n in Stomatopoda (Crustacea) from the Marquesas Islands: results of MUSORSTOM 9
FIG. 7. — Acanthosquilla crosnieri n. sp., tl 33 mm (holotype); A, anterior cephalon, dorsal; B, raptorial claw, right lateral; C, TS6-8, right dorsal; D, AS5-6, telson and uropod, dorsal; E, telson, ventral; F, uropod, left ventral; G, pleopod 1 endopod, right anterior. Scale bar: A-F, 2 mm; G, 1 mm.
FIG. 6 in Stomatopoda (Crustacea) from the Marquesas Islands: results of MUSORSTOM 9
FIG. 6. — Raoulserenea komaii (Moosa, 1991), postlarva tl 30 mm (stn CP1264); A, anterior cephalon, dorsal; B, raptorial claw, right lateral; C, AS3-5, lower right lateral; D, AS5-6, telson and uropod, dorsal; E, uropod, left ventral. Scale bar: 1.25 mm.
FIG. 5 in Stomatopoda (Crustacea) from the Marquesas Islands: results of MUSORSTOM 9
FIG. 5. — Odontodactylus brevirostris (Miers, 1884), tl 52 mm (stn DW1203); A, anterior cephalon, dorsal; B, raptorial claw, right lateral; C, TS6-8, right lateral; D, TS8 sternal keel; E, AS3-5, right lateral; F, AS5-6, telson and uropod, dorsal; G, uropod, right ventral. Scale bar: A-C, E-G, 2 mm; D, 1 mm.
FIG. 2 in Stomatopoda (Crustacea) from the Marquesas Islands: results of MUSORSTOM 9
FIG. 2. — Gonodactylellus espinosus (Borradaile, 1898); A-E, tl 27 mm (Ua Huka); A, ocular scales, dorsal; B, rostral plate, dorsal; C, raptorial claw, right lateral; D, TS6-8, right lateral; E, AS5-6, telson and uropod, dorsal; F, cl 4.3 mm (Ua Huka), pleopod 1 endopod, right anterior. Scale bar: A-E, 1 mm; F, 0.5 mm.
FIG. 4. — Gonodactyloideus tricarinatus n in Stomatopoda (Crustacea) from the Marquesas Islands: results of MUSORSTOM 9
FIG. 4. — Gonodactyloideus tricarinatus n. sp., tl 24 mm (holotype); A, anterior cephalon, dorsal; B, eye, right dorsal; C, raptorial claw, right lateral; D, TS5-8, AS1, lower right lateral; E, AS5-6, telson and uropod, dorsal; F, telson, right lateral. Scale bar: 1 mm.
FIG. 3 in Stomatopoda (Crustacea) from the Marquesas Islands: results of MUSORSTOM 9
FIG. 3. — Gonodactylellus micronesicus (Manning, 1971); A-F, tl 18 mm (stn 34); A, ocular scales, dorsal; B, rostral plate, dorsal; C, TS6-7, right lateral; D, AS5-6, telson and uropod, dorsal; E, telson, right lateral; F, pleopod 1 endopod, right anterior; G-J, tl 11 mm (stn DW1143); G, ocular scales; H, rostral plate, dorsal; I, AS6 and telson, dorsal; J, telson, right lateral; K, L, postlarva tl 9 mm (stn DW1143); K, rostral plate and anterior carapace, dorsal; L, AS5-6, telson and uropod, dorsal. Scale bar: A-E, G-J, 1 mm; F, K, L, 0.5 mm.
FIG. 1 in Stomatopoda (Crustacea) from the Marquesas Islands: results of MUSORSTOM 9
FIG. 1. — Bathysquilla microps (Manning, 1961), tl 49 mm (stn CP1272); A, anterior cephalon, dorsal; B, raptorial claw, right lateral; C, AS5-6 and telson, dorsal; D, uropod, right ventral; E, pleopod 1 endopod, right anterior. Scale bar: 2 mm.
FIG. 4. — Mursia poupini n in The Calappidae of the Marquesas Islands with a description of a new species of Mursia (Crustacea, Decapoda, Brachyura)
FIG. 4. — Mursia poupini n. sp., holotype, cl 41.0 mm, Dumont d'Urville Plateau, stn CP 1251, 9°47'S, 139°38'W, 500-650 m, 2.IX.1997 (MNHN B27632), dorsal view.
Data from: Challenging trophic position assessments in complex ecosystems: calculation method, choice of baseline, trophic enrichment factors, season and feeding guild do matter. A case study from Marquesas Islands coral reefs
<p>Assessments of ecosystem functioning are a fundamental ecological challenge and an essential foundation for ecosystem-based management. An understanding of species trophic positions (TP) is essential to characterize food web architecture. However, despite the intuitive nature of the concept, empirically estimating TP is a challenging task due to the complexity of trophic interaction networks. Various alternative methods are proposed to assess TPs, including different approaches to account for the different sources of organic matter at the base of the food web (the "baseline"). However, it is often not clear which methodological approach and which baseline choices are the most reliable. Using an ecosystem-wide assessment of a tropical reef (Marquesas Islands, French Polynesia, with available data for 70 coral reef invertebrate and fish species), we tested whether different commonly used TP estimation methods yield similar results and, if not, whether it is possible to identify the most reliable method. We found significant differences in TP estimates of up to 1.7 TP for the same species, depending on the method and the baseline used. When using bulk stable isotope data, the choice of the baseline significantly impacted TP values. Indeed, while δ<sup>15</sup>N values of macroalgae led to consistent TP estimates, those using phytoplankton generated unrealistically low TP estimates. The use of a conventional enrichment factor (i.e. 3.4 ‰) or a "variable" enrichment factor (i.e. according to feeding guilds) also produced clear discrepancies between TP estimates. Regarding the use of different calculation methods, TPs obtained with δ<sup>15</sup>N values of source amino acids (compound specifics isotope analysis) were close to those assessed with macroalgae, but evidenced the opposite seasonal pattern, with significantly lower TPs in winter than in summer for the majority of assessed species, with particularly pronounced differences for lower TP species. We use the observed differences to discuss possible drivers of the diverging TP estimates and the potential ecological implications.</p>
FIG. 2 in The Calappidae of the Marquesas Islands with a description of a new species of Mursia (Crustacea, Decapoda, Brachyura)
FIG. 2. — Cycloes marisrubri Galil & Clark, 1996,
FIG. 1 in The Calappidae of the Marquesas Islands with a description of a new species of Mursia (Crustacea, Decapoda, Brachyura)
FIG. 1. — Cycloes marisrubri Galil & Clark, 1996, 26.VIII.1997 (MNHN B27623), dorsal view.
Data from: Challenging trophic position assessments in complex ecosystems: calculation method, choice of baseline, trophic enrichment factors, season and feeding guild do matter. A case study from Marquesas Islands coral reefs
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FIGURE 1 in A new species of Apterichtus (Anguilliformes: Ophichthidae) from the Marquesas Islands
FIGURE 1. Apterichtus succinus sp. nov., holotype, USNM 409323, 175 mm TL, Marquesas Islands (fresh condition, photographed by Jeffery T. Williams).
FIGURE 2 in A new species of Apterichtus (Anguilliformes: Ophichthidae) from the Marquesas Islands
FIGURE 2. Sensory pores on head (a), teeth on upper jaw and palatal area (b), and those of mandible (c) of Apterichtus succinus sp. nov., holotype, USNM 409323. IMT, intermaxillary teeth; IO, infraorbital pores; LL, lateral-line pores; MD, mandibular pores; PO, preopercular pores; SO, supraorbital pores; ST, supratemporal pores; UJT, upper-jaw teeth; VT, vomerine tooth. Arrows indicate interorbital (left) and mid-temporal (right) pores.
FIGURE 3 in A new species of Apterichtus (Anguilliformes: Ophichthidae) from the Marquesas Islands
FIGURE 3. Marking patterns of head and nape, traced from fresh color photographs: (a) Apterichtus succinus sp. nov., holotype, USNM 409323; (b) A. klazingai, USNM 375002, 247 mm TL, Ile Uvea, Wallis Island; (c) A. klazingai, BPBM 36764, 298 mm TL, Maumere Bay, Flores, Indonesia.
FIGURE 19 in Indo-West Pacific species of Trachinotus with spots on their sides as adults, with description of a new species endemic to the Marquesas Islands (Teleostei: Carangidae)
FIGURE 19. Dorsal and lateral views of skull in Trachinotus: A, T. mookalee, ANSP 148969, 570 mm FL, Cochin, India; B, T. africanus, ANSP 148968, 532 mm FL, Durban, South Africa (supraoccipital shape is the same in all species, except T. mookalee). Drawn by William F. Smith-Vaniz.
FIGURE 20 in Indo-West Pacific species of Trachinotus with spots on their sides as adults, with description of a new species endemic to the Marquesas Islands (Teleostei: Carangidae)
FIGURE 20. Hyperostotic first supraneural (shaded) and adjacent non-hyperostotic supraneural in lateral view (anterior to left). Outlines traced from radiographs plotted against fork length (FL) in Trachinotus blochii. Numbers correspond to the following specimen voucher catalog numbers, FL mm lengths (in parentheses) and localities: 1, CAS 32093 (130) Madagascar; 2, ANSP 148749 (160) Madagascar; 3, ANSP 148749 (178) Madagascar; 4, ANSP 148740 (190) Sri Lanka; 5, ANSP 144395 (212) Sri Lanka; 6, ANSP 148735 (229) Chagos; 7, ANSP 151014 (237) Sri Lanka; 8, ANSP 151015 (246) Sri Lanka; 9, ANSP 151015 (291) Sri Lanka; 10, ANSP 148735 (329) Chagos; 11, ANSP 138159 (335) Seychelles; 12, ANSP 138159 (364) Seychelles; 13, ANSP 148735 (407) Chagos; 14, ANSP 138157 (461) Seychelles; 15, ANSP 148733 (469) Sri Lanka; 16, ANSP 148735 (483) Chagos; 17, ANSP 148787 (520) Sri Lanka; 18, ANSP 138883 (556) Gulf of Oman.
FIGURE 17. Trachinotus coppingeri, ANSP 153828, 254 in Indo-West Pacific species of Trachinotus with spots on their sides as adults, with description of a new species endemic to the Marquesas Islands (Teleostei: Carangidae)
FIGURE 17. Trachinotus coppingeri, ANSP 153828, 254 mm FL, Australia, Queensland. Drawn by Karen Ackoff.
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