The objective of this study was to describe the morphology and morphometry saggitta otoliths Polydactylus virginicus, Menticirrhus cuiaranensis Conodon nobilis in a tropical environment. Fishes were caught with rod reel competitive fishing events promoted 2014-2015 along coast Sergipe. A total 174 pairs sagitta P. 181 M. 77 C. extracted. In general, all three species analyzed here presented dif...

In teleosts, the inner ear is a complicated structure of canals, sacs and ducts filled with endolymph. Each otic sac contains the otoliths of a calcareous structure named sagitta, lapillus or asteriscus (BOND, 1996). The otoliths differ in size and shape. In most species sagitta otolith is the biggest one and mostly used in during the ageing of fish. Even though the otoliths inside the inner ea...

Each arm of the NLC Main Linac is almost 11 km in length; including the final focus region, the total complex extends over 30 km. Were it to be constructed using straight-line tunneling, its sagitta relative to a gravitational equipotential surface would be about 18 meters. While that seems like a small number, its impact on pumping requirements is significant. Further, if the tunnel is dug usi...

Chaetognatha is a minor phylum, comprising transparent marine invertebrates varying in size from 0.5 to 12 cm. The exact phylogenetic position of Chaetognatha in Metazoa has not been deciphered as some embryological characteristics place chaetognaths among deuterostomes and some morphological characteristics place these among protostomes. In this study, the major factors that drive synonymous c...