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419 results for “Alpheus”
Alpheus Babcock (b3808)
<b>-- <a href="https://doi.org/10.5281/zenodo.11582199">Documentation</a> --</b><br><br><u>Name</u>: Alpheus Babcock<br><u>musiXplora-ID</u>: b3808<br><u>musiXplora-URI</u>: <a href="https://musixplora.de/mxp/b3808">https://musixplora.de/mxp/b3808</a><br><u>Gender</u>: m<br><u>Date of Birth</u>: 11 September 1785<br><u>Place of Birth</u>: Dorchester/MA<br><u>Date of Death</u>: 03 April 1842<br><u>Place of Death</u>: Boston<br><u>First Mentioned</u>: 1809<br><u>Sectors</u>: Handel, Klavierbau<br><u>Professions (Historical)</u>: Erfinder, Patentinhaber<br><u>Professions (Musical)</u>: Klavierbauer<br><u>Professions (Non-Musical)</u>: Unternehmer<br><u>Other Places of Activity</u>: Boston, Philadelphia<br><br><br><u>Arbeitsumfeld:</u><br><table><tbody><tr><th>Group</th><th>Role</th><th>Name</th><th>mXp-ID</th></tr><tr><td>KollegInnen</td><td>Kollege</td><td>Thomas Appleton</td><td><a href="https://musixplora.de/mxp/a1358">a1358</a></td></tr></tbody></table><br><u>Portfolio:</u><br><table><tbody><tr><th>Group</th><th>Role</th><th>Name</th><th>mXp-ID</th></tr><tr><td>Sortimente</td><td>Sortiment</td><td>Tafelklavier</td><td><a href="https://musixplora.de/mxp/2001470">2001470</a></td></tr></tbody></table><br><br><u>Changelog</u>:<br> - v0.0.1: Initial Upload.<br>
Fig. 3 in A new western Atlantic snapping shrimp of the Alpheus macrocheles group (Caridea, Alpheidae) revealed by morphological, molecular and color data
Fig. 3. Alpheus ramosportoae sp. nov., paratype, ♂, from seamounts of the North Chain, Ceará, northeastern Brazil (MOUFPE 13703). A. Second pereiopod, lateral view. B. Third pereiopod, lateral view. C. Fourth pereiopod, lateral view. D. Fifth pereiopod, lateral view. E–G. Third to fifth pereiopods, detail of propodus, lateral view. H–I. Third and fourth pereiopods, detail of dactylus. Scale bars: A–G = 0.5 mm; H–I = 0.25 mm.
Fig. 1 in A new western Atlantic snapping shrimp of the Alpheus macrocheles group (Caridea, Alpheidae) revealed by morphological, molecular and color data
Fig. 1. Alpheus ramosportoae sp. nov. A–D. Holotype, ♂, from off Recife, state of Pernambuco, northeastern Brazil (MOUFPE 19470). A. Carapace and cephalic appendages, dorsal view (setae omitted). B. Same, lateral view. C. Tooth on ventromesial carina of antennular peduncle. D. Left mandible, mesial view. E–L. Paratype, ♂, from seamounts of the North Chain, Ceará, northeastern Brazil (MOUFPE 13703). E. First maxilla, lateral view. F. Second maxilla, lateral view. G. First maxilliped, lateral view. H. Second maxilliped, lateral view. I. Third maxilliped, lateral view. J. Telson and uropods, dorsal view (setae omitted). K. Uropod, detail of the distolateral angle of the exopod. L. Uropod, detail of the posteerior margin of endopod. Scale bars: A–B, J = 1 mm; C–I, K–L = 0.5 mm.
Fig. 1 in A New Record Of The Snapping Shrimp, Alpheus Lobidens, From The Iraqi Coast (Malacostraca, Decapoda, Alpheidae)
Fig. 1. Sampling site north west of the Persian-Arabian Gulf: 1 — Fao site1, 2 — Fao sit2 breakwaters, 3 — Khor Abdullah, 4 — Khor Al-Zubair and 5 — Shatt Al-Basrah Canal.
Fig. 2 in A New Record Of The Snapping Shrimp, Alpheus Lobidens, From The Iraqi Coast (Malacostraca, Decapoda, Alpheidae)
Fig. 2. Alpheus cf. lobidens De Haan, 1849: A — male from Iraqi coast, (MSC.233) lateral view; B — major chela of male, C — major chela of male, fingers opened to show the plunger. Photographs by M. D. Naser.
Figure 4. Alpheus brasileiro Anker, 2012. A in Growth, age at sexual maturity, longevity and natural mortality of Alpheus brasileiro (Caridea: Alpheidae) from the south-eastern coast of Brazil
Figure 4. Alpheus brasileiro Anker, 2012. A, Cohorts identified during sampling describing the growth of each sex. B, Bertalanffy´s equation parameters estimated for males and females. The central line = mean; external lines = prediction intervals (95%).
Figure 5. Alpheus brasileiro Anker, 2012. Logistic curve interpolation where 50 in Growth, age at sexual maturity, longevity and natural mortality of Alpheus brasileiro (Caridea: Alpheidae) from the south-eastern coast of Brazil
Figure 5. Alpheus brasileiro Anker, 2012. Logistic curve interpolation where 50% of females reach functional sexual maturity (CL50).
Figure 3. Alpheus brasileiro Anker, 2012 in Growth, age at sexual maturity, longevity and natural mortality of Alpheus brasileiro (Caridea: Alpheidae) from the south-eastern coast of Brazil
Figure 3. Alpheus brasileiro Anker, 2012. Size–frequency distribution of individuals both sexually immature (2.5 to 4.5 mm CL) and sexually mature (5.5 to 9.5 mm CL). Undifferentiated individuals (white bars), males (black bars) and females (dark grey bars). The values of morphological sexual maturity (4.9 and 4.7 mm CL for males and females respectively) are from the study of population structure and relative growth with the same population (Pescinelli et al., 2018a).
Figure 2. A in Growth, age at sexual maturity, longevity and natural mortality of Alpheus brasileiro (Caridea: Alpheidae) from the south-eastern coast of Brazil
Figure 2. A, Lateral view of an ovigerous female of Alpheus brasileiro Anker, 2012; B, sampling area at the intertidal zone of the estuary of Cananéia, São Paulo, south–eastern Brazil.
Figure 1 in Growth, age at sexual maturity, longevity and natural mortality of Alpheus brasileiro (Caridea: Alpheidae) from the south-eastern coast of Brazil
Figure 1. Location of the study area, water represented by dark grey in the map of the intertidal estuarine zone of Cananéia, São Paulo, south–eastern Brazil. Adapted from Pescinelli et al. (2017a).
Fig. 4. Alpheus carlae Anker, 2012 in Saphonecrus shirakashii
Fig. 4. Alpheus carlae Anker, 2012. Minimum estimated size of morphological sexual maturity for females and males. The estimated size refers to the smallest individual after the inflection point of the equations for juveniles and adults.
Fig. 6. Alpheus carlae Anker, 2012 in Saphonecrus shirakashii
Fig. 6. Alpheus carlae Anker, 2012. (A) Correlation between carapace length and the fecundity of females with eggs in development stage I. (B) Comparison of egg volume at the early (I), intermediate (II), and final stage of development (III). Minimum, maximum (whiskers), median (horizontal lines) and mean (x). Different letters indicate significant differences among egg stages.
Fig. 3. Alpheus carlae Anker, 2012 in Saphonecrus shirakashii
Fig. 3. Alpheus carlae Anker, 2012. Body dimensions used in the morphometric analyses. Carapace length (CL), second pleonal pleuron (SPP), major cheliped propodus length (CPL), major cheliped propodus width (CPW), major cheliped propodus height (CPH), appendix interna length (AIL), and appendix masculina length (AML). Illustrations by Nádia de Moraes Sanches.
Linked collectors and determiners for: Alpheus naranjo, a new brightly coloured snapping shrimp from the Caribbean coast of Panama (Malacostraca, Decapoda, Alpheidae).
Natural history specimen data linked to collectors and determiners held within, "Alpheus naranjo, a new brightly coloured snapping shrimp from the Caribbean coast of Panama (Malacostraca, Decapoda, Alpheidae)". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/ce0ab832-46b8-40e9-8aaa-9ca99ab24f32">https://bionomia.net/dataset/ce0ab832-46b8-40e9-8aaa-9ca99ab24f32</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/ce0ab832-46b8-40e9-8aaa-9ca99ab24f32">https://gbif.org/dataset/ce0ab832-46b8-40e9-8aaa-9ca99ab24f32</a>. Formatted as a Frictionless Data package.
Linked collectors and determiners for: Using integrative taxonomy to establish the status of Alpheus peasei (Armstrong, 1940) (Decapoda: Alpheidae) as a single species throughout its distribution.
Natural history specimen data linked to collectors and determiners held within, "Using integrative taxonomy to establish the status of Alpheus peasei (Armstrong, 1940) (Decapoda: Alpheidae) as a single species throughout its distribution". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/947aa27b-9422-4d62-adc5-2cab2f5a8412">https://bionomia.net/dataset/947aa27b-9422-4d62-adc5-2cab2f5a8412</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/947aa27b-9422-4d62-adc5-2cab2f5a8412">https://gbif.org/dataset/947aa27b-9422-4d62-adc5-2cab2f5a8412</a>. Formatted as a Frictionless Data package.
Tradeoffs and benefits explain scaling, sex differences, and seasonal oscillations in the remarkable weapons of snapping shrimp (Alpheus spp.)
<p>Evolutionary theory suggests that individuals should express costly traits at a magnitude that optimizes the cost-benefit ratio for the trait-bearer. Trait expression varies across a species because costs and benefits vary among individuals. For example, if large individuals pay lower costs than small individuals, then larger individuals should reach optimal cost-benefit ratios at a greater magnitude of trait expression. Using the remarkable cavitation-shooting weapons found in the big claws of male and female alpheid snapping shrimp, we test whether size- and sex-dependent expenditures explain the scaling of weapon size relative to body size and why males have larger proportional weapon size than females. We found that males and females from three snapping shrimp species (<em>Alpheus</em> <em>heterochaelis</em>, <em>Alpheus</em> <em>angulosus</em>, and <em>Alpheus</em> <em>estuariensis</em>) exhibit resource allocation tradeoffs between weapon and abdomen mass. For male <em>A</em>. <em>heterochaelis</em>, the species for which we had the greatest sample size and statistical power, the smallest individuals showed the steepest tradeoff. Our extensive dataset in <em>A</em>. <em>heterochaelis</em> also included data about pairing, breeding season, and egg clutch size. Therefore, we could test for reproductive tradeoffs and benefits in this species. Female <em>A</em>. <em>heterochaelis</em> exhibited additional tradeoffs between weapon size and egg count, average egg volume, and total egg mass volume. For average egg volume, the smallest females exhibited the steepest tradeoff relative to weapon size. Furthermore, for both sexes, large weapons were positively correlated with the relative size of their pair mate; however, for males only, large weapons were positively correlated with being paired in the first place. In conclusion, we establish that size-dependent tradeoffs underlie reliable scaling relationships of costly traits. Furthermore, we show that males and females differ in weapon investment, suggesting that weapons are especially beneficial to males and especially burdensome to females.</p>
Tradeoffs and benefits explain scaling, sex differences, and seasonal oscillations in the remarkable weapons of snapping shrimp (Alpheus spp.)
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Figure 1 in Description of a new alpheid shrimp from the tropical western Atlantic (Decapoda: Caridea: Alpheus)
Figure 1. Alpheus schubarti sp. nov.: holotype male (cl 4.45 mm) from Maceió, Alagoas, Brazil, MZUSP 45945 [A-G]; (A) frontal region, dorsal; (B) same, lateral; (C) telson, dorsal; (D) tooth on ventromesial carina of first article of antennular peduncle, lateral; (E) third maxilliped, lateral; (F) second pleopod, lateral; (G) uropod, dorsal. Alpheus rostratus Kim & Abele, 1988: male (cl 6.15 mm) from Las Perlas Islands, Panama, MZUSP 45952 [H, I]; (H) frontal region, dorsal; (I) third maxilliped, lateral.
Figure 4 in Description of a new alpheid shrimp from the tropical western Atlantic (Decapoda: Caridea: Alpheus)
Figure 4. Alpheus schubarti sp. nov.: holotype male (cl 4.45 mm) from Maceió, Alagoas, Brazil, MZUSP 45945, in dorsal view (A); paratype male (cl 4.50 mm) from the same locality, MZUSP 45946, dorsal view (B). Photographs by the author.
Figure 7 in Description of a new alpheid shrimp from the tropical western Atlantic (Decapoda: Caridea: Alpheus)
Figure 7. Alpheus cf. paracrinitus Miers, 1881: male (cl 5.30 mm) from Maceió, Alagoas, Brazil, MZUSP 45949, in dorsal (A) and lateral (B) views. Photographs by the author.
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