Gelatinous invertebrate zooplankton of the South Adriatic: …
WebApr 1, 2004 · Sagitta lyra was registered throughout the water column. The younger stages of S. lyra were distributed largely within the upper layers. Adults inhabited deeper layers (below 300 m), but in very low abundance, generally <10 ind. m −2 (Figure 6).
Early Cambrian origin of modern food webs: evidence from …
WebAlthough palaeontological evidence from exceptional biota demonstrates the existence of diverse marine communities in the Early Cambrian (approx. 540–520 Myr ago), little is known concerning the functioning of the marine ecosystem, especially its trophic structure and the full range of ecological niches colonized by the fauna.
Chaetognatha of the Namibian Upwelling Region: …
WebJan 16, 2013 · Adults of Sagitta macrocephala, Sagitta lyra, Sagitta enflata, Sagitta sibogae, Sagitta planctonis and Sagitta zetesiois were not detected. It was not possible to differentiate juveniles from the species of …
Journal of the Marine Biological Association of India - CMFRI
Webfowleri Ritter-Zahony (1909), Sagitta hispida Conant (1895), and Sagitta lyra Krohn (1853) are interesting distributional records for the Indian Seas, and brief descrip tions of these species are also given here. The species in the collection are : Genus Sagitta Quoy and Gaimard (1827) 1. Sagitta bedoti Beraneck (1895) 2.
Chaetognatha of the Namibian Upwelling Region: Taxonomy, …
WebJan 16, 2013 · Adults of Sagitta macrocephala, Sagitta lyra, Sagitta enflata, Sagitta sibogae, Sagitta planctonis and Sagitta zetesiois were not detected. It was not possible to differentiate juveniles from the species of the Serratodentata group due to the fact that the main diagnostic features for identifying stage I and II were not conspicuously discernible …
Systematics of Chaetognatha under the light of ... - ScienceDirect
WebMar 1, 2006 · The inclusion of Sagitta lyra within the genus Sagitta was questioned, and they proposed that Pterosagitta draco was a member of the Spadellidae adapted to planktonic life. The first molecular study of the chaetognath systematics was conducted with a short portion of the large subunit ribosomal RNA 28S (LSU rRNA) gene (Telford and …
Sagitta lyra , a biological indicator species in the subarctic waters ...
WebIn the Gulf of Alaska the chaetognath, Sagitta lyra, was most frequently found in areas where the temperature at 150 m exceeded 6 °C and the salinity exceeded 33‰. Water of this character was mainly associated with a northward intrusion of warm water past the Canadian coast. Comparison of surface gillnet catches of salmon with occurrence of S. …
Sagitta Lyra - Facebook
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Sagitta lyra | NBN Atlas
WebSagitta lyra Krohn, 1853 (accepted name: Pseudosagitta lyra) Click below for synonym of Pseudosagitta lyra (Krohn, 1853) - (0 records) species Synonym Name authority: UKSI Establishment means: Native. Main Image. Main Audio. Name. Attribution. Licence. Main Video. Name. Attribution. Licence. OK. NBN Atlas Partnership ...
A short note on the biogeographic patterns of the Chaetognatha …
WebJan 1, 2008 · The list of species is shown in Table 1.The juveniles of Eukrohnia bathyantarctica and Eukrohnia hamata could not be identified to species level and so were combined. Also one species of Sagitta could not be identified with certainty, and is treated separately as Sagitta sp.; it is different from the other species, and could be juvenile …
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