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The kinetics of the low pressure synthesis of methanol from feed gases containing solely CO and H, were studied in an internally recycled gradientless reactor. As experimental accuracy impeded the application of high CO contents, the experimental range of mole fraction of CO was limited to 0.04 to 0.22. The total pressure was varied from 3 to 7 MPa and the(More)
The bandwidth for the recording of the orbicularis oculi blink reflex electromyogram (EMG) response is optimal when low-frequency artifacts, such as motion artifacts and cross-talk from other muscles, are maximally suppressed, whereas true EMG signal power is maximally retained. The optimal bandwidth was investigated for acoustic, electrocutaneous, and(More)
The free-living solitary mushroom coral Heliofungia actiniformis resembles sea anemones by having large, fleshy polyps with long tentacles, which provide shelter to symbiotic organisms. Commensal shrimps are well studied, but little is known about associated fish fauna. Therefore, the associated fauna of 118 coral polyps of H. actiniformis was examined at a(More)
Archaster typicus, a common sea star in Indo-Pacific regions, has been a target for the ornamental trade, even though little is known about its population biology. Spatial and temporal patterns of abundance and size structure of A. typicus were studied in the Davao Gulf, the Philippines (125°42.7 0 E, 7°0.6 0 N), from February 2008 to December 2009.(More)
Although the presence of fish on coral colonies and individual polyps of the Anthozoa is relatively common (e.g., Munday et al. 1997), the only fish known to be associated with Heliofungia actiniformis is the white pipefish Siokunichthys nigrolineatus (see Hoeksema et al. 2011). Other fishes may hover over individuals of this large solitary coral polyp, but(More)
Paracorynactis hoplites (Haddon and Shackleton 1893) (Anthozoa: Corallimorphidae) was recently assigned to the new monotypic genus Paracorynactis based on specimens from Indonesia and observations in the Philippines (Ocaña et al. 2010). Shortly after, this species was reported from the western Indian Ocean without locality data (Den Hartog and Ocaña 2011),(More)
Juveniles of the Blackspotted wrasse Macropharyngodon meleagris (Valenciennes, 1839) were observed to solely inhabit xeniid soft corals in shallow exposed reefs in Negros Island (central Philippines). Juvenile coloration (including patterns and eyespots) and adapted swimming behavior may support blending in with the soft coral environment and avoiding(More)
Lionfish (Pterois miles) were observed avoiding coral pinnacles inhabited by the moray eels Gymnothorax flavimarginatus and G. javanicus in the northern Red Sea, Egypt. Release of lionfish (Standard Length 93–104 mm) in such coral pinnacles in November 2016 resulted in almost immediate predation by large moray eels (Total Length > 1 m). Predation by moray(More)
The Egyptian weasel (Mustela subpalmata) is a small mustelid with a distribution restricted to the lower Nile Valley and the Nile Delta. Traditionally considered a subspecies of the least weasel (M. nivalis), it is currently recognized as a separate species based on morphology. Here we present the first genetic assessment of the taxonomic status of the(More)
The population ecology of the sand dollar Sculpsitechinus auritus was studied in shallow coastal habitats of the Gulf of Suez, Egypt, from January 2013 to October 2014. Bimonthly sampling revealed that 95 % of the individuals had a width of 100–145 mm and that juveniles were absent throughout the sampling period. The mean gonadosomatic index (GSI) reached(More)