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Spectral relationships for atmospheric correction. I. Validation of red and near infra-red marine reflectance relationships.
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RBINS Staff Publications
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Spectral variations of light scattering by marine particles in coastal waters, from visible to near infrared
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Field measurements and Mie calculations of the particulate light-scattering coefficient (b(p), in m(-1)) in the near-infrared and visible spectral domains are combined to quantify and model the effect of particulate absorption on the b(p) spectral variations. The case of particles of coastal origin and assumed to follow a Junge-type size distribution is considered. A simple power-law function closely reproduces the near-infrared b(p) spectral variations, with a spectral slope varying in the range 0.1-1.4. In the visible (e.g., 440 nm), particulate absorption effects systematically lead to b(p) values 5-30\% lower than values predicted using a power-law function fitted in the near infrared and extrapolated to 440 nm. The respective influences of the particle size distribution and composition are investigated for both mineral and organic particle populations. Finally, an empirical model derived from theoretical calculations closely reproduces the actual b(p) spectral variations from near-infrared to short visible wavelengths, taking into account particulate absorption effects.
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RBINS Staff Publications
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Speleothem records over the penultimate deglaciation and the Last Interglacial.
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RBINS Staff Publications
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Sperm whales and beaked whales, evolution
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RBINS Staff Publications 2017
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Spider Stowaways: molecular Data Support the Synonymization of Selenops galapagoensis with Selenops mexicanus (Araneae: Selenopidae) and Indicate Human-Mediated Introduction to the Galapagos Islands
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RBINS Staff Publications 2016
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Spiders in Galapagos – diversity, biogeography and origin
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RBINS Staff Publications 2020
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Spiniferaphonte, a new genus of Laophontidae (Copepoda: Harpacticoida), with notes on the occurrence of processes on the caudal rami
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A new genus and species of Laophontidae, Spiniferaphonte ornata n. gen., n. sp., is described from the coast of Kenya. The new genus is closely related to Laophontina and Wellsiphontina as shown by the following synapomorphies: a denticulate operculum, a sexually dimorphic P4 exopod (reduced chaetotaxy of the ultimate segment in the male), and the absence of sexual dimorphism in the P2 and P3 endopods. The two-segmented exopod of P1 and the presence of a seta on the endopodal part of the male P5 are plesiomorphies indicating that the new genus represents a separate lineage within this group. The proposal of the new genus Spiniferaphonte is supported by the following autapomorphies: three smooth setae on the female P5 exopod and a robust, dorsally bent, and strongly sclerotised caudal seta V. Within the Laophontidae, it is striking that the presence of distinct, thorn-like processes on the caudal rami is limited to interstitial genera. Distinct processes on the proximal segments of the antennule and a proximally thickened caudal seta V also appear to be associated with this interstitiality. These structures may play a role in the movement and the anchoring of the animals in their interstitial habitat.
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RBINS Staff Publications
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Spondylosis deformans in three large canids from the Gravettian Předmostí site: Comparison with other canid populations
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RBINS Staff Publications 2016
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Stable isotope and biotic evolution in the North Sea during the early Eocene : the Albaek Hoved section, Denmark.
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RBINS Staff Publications
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Stable isotope evidence for late medieval (14th-15th C) origins of the eastern Baltic cod (Gadus morhua) fishery
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Although recent historical ecology studies have extended quantitative knowledge of eastern Baltic cod (Gadus morhua)exploitation back as far as the 16th century, the historical origin of the modern fishery remains obscure. Widespreadarchaeological evidence for cod consumption around the eastern Baltic littoral emerges around the 13th century, threecenturies before systematic documentation, but it is not clear whether this represents (1) development of a substantialeastern Baltic cod fishery, or (2) large-scale importation of preserved cod from elsewhere. To distinguish between thesehypotheses we use stable carbon and nitrogen isotope analysis to determine likely catch regions of 74 cod vertebrae andcleithra from 19 Baltic archaeological sites dated from the 8th to the 16th centuries.d13C and d15N signatures for six possiblecatch regions were established using a larger sample of archaeological cod cranial bones (n=249). The data stronglysupport the second hypothesis, revealing widespread importation of cod during the 13th to 14th centuries, most of itprobably from Arctic Norway. By the 15th century, however, eastern Baltic cod dominate within our sample, indicating thedevelopment of a substantial late medieval fishery. Potential human impact on cod stocks in the eastern Baltic must thus betaken into account for at least the last 600 years
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RBINS Staff Publications