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Showing 1 to 19 of 19 for “"annelida"”.
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The Biology of Aeolosoma (Annelida)
Made available in DSpace on 2014-12-14T16:11:13Z (GMT). No. of bitstreams: 1 7804158.pdf: 7944897 bytes, checksum: 8cb6fe7bc7c09e8acab22eb3239e12b6 (MD5) Previous issue date: 1977
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ΒΙΟΛΟΓΙΑ ΑΝΑΠΑΡΑΓΩΓΗΣ ΤΟΥ OCTODRILUS COMPLANATUS DUGES, 1828 ANNELIDA: OLIGOCHAETA: LUMBRICIDAE
ΜΕΛΕΤΗΘΗΚΕ Η ΒΙΟΛΟΓΙΑ ΑΝΑΠΑΡΑΓΩΓΗΣ ΤΟΥ OCTODRILUS COMPLANATUS, ΣΤΗ ΔΙΑΡΚΕΙΑ ΕΝΟΣ ΕΤΗΣΙΟΥ ΚΥΚΛΟΥ. Η ΚΑΤΑΣΤΑΣΗ ΣΤΟΥΣ ΟΡΧΕΙΣ ΠΑΡΑΜΕΝΕΙ ΑΝΑΛΛΟΙΩΤΗ. ΟΙ ΣΠΕΡΜΑΤΙΚΕΣΚΥΣΤΕΙΣ ΕΧΟΥΝ ΤΟ ΜΙΚΡΟΤΕΡΟ ΒΑΡΟΣ ΤΟΥΣ ΤΟ ΚΑΛΟΚΑΙΡΙ, ΕΝΩ ΤΟ ΜΕΓΙΣΤΟ ΒΑΡΟΣ ΣΗΜΕΙΩΝΕΤΑΙ ΤΟΥΣ ΜΗΝΕΣ ΑΠΟ ΦΕΒΡΟΥΑΡΙΟ ΜΕΧΡΙ ΚΑΙ ΜΑΙΟ. Η …
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Biodiversity and Biogeography of Polychaetes (Annelida): Globally and in Indonesia
… review of the biodiversity of polychaete worms (Annelida) and their distribution across the globe. It also provides an evaluation of polychaete biodiversity studies in Indonesia and a description of a new polychaete species collected from Ambon Island, Province of Maluku, Indonesia. I reviewed …
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Interactive processes in a Lanice conchilega (Annelida: Polychaeta) dominated intertidal community
An investigation was conducted into the factors influencing a soft-sediment intertidal benthic community dominated by the large tube building polychaete Lanice conchilega (Pallas, 1766). The environmental and biological characteristics of a mid-shore sampling site on a relatively sheltered sandflat …
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Isolierung und Identifizierung von Sexualpheromonen des marinen Polychaeten Platynereis dumerilii (Annelida, Polychaeta)
Das Ziel der vorliegenden Arbeit war die Identifizierung des Egg Release Pheromons (ERP) und des Mate Recognition Pheromons (MRP) beim marinen Polychaeten Platynereis dumerilii. Die Isolierung des ERP wurde durch biotestorientierte Fraktionierung männlicher Coelomflüssigkeit mit RP-HPLC erreicht. …
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Isolierung und Identifizierung von Pheromonen und mit Pheromonen interferierenden Substanzen bei Platynereis dumerilii (Annelida, Polychaeta)
Ziel war die Isolierung und Identifizierung von Spermaabgabe induzierenden Verbindungen aus EKO-FISK-Rohöl sowie die Isolierung von Sexualpheromonen bei der Polychaetenart Platynereis dumerilii. Aromatenhaltige Fraktionen aus dem Rohöl konnten bei schwärmenden Männchen eine Spermaabgabe induzieren. …
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Distribuição especial dos Annelida - Polychaeta em substratos não consolidados do Saco do Céu - Ilha Grande - Angra dos Reis - RJ
… was to determine the spatial distribution of Annelida Polychaeta in Saco do Céu - Ilha Grande - Angra dos Reis - Rio de Janeiro, an inlet facing the continent. Thirty-nine stations were done in two different periods of the year (January and July/1992). A 0,1 m2 Petersen grab was used to …
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Sistema planctônico da região do emissário submarino de esgotos de Ipanema, Rio de Janeiro, RJ, populações zooplanctônicas: Annelida Polychaeta
… The qualitative study was directed to the Annelida Polychaeta out of the zooplankton collected in that area. Six species, distributed into three families, Iospilidae (3), Typhloscolecidae (2) and Tomopteridae (1); are studied with descriptions and illustrations of those species, which are …
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Mitochondrial genomics and northwestern Atlantic population genetics of marine annelids
… and population genetics, focused on the phylum Annelida. Recent expansions of molecular methods and the increasing diversity of available markers have allowed more complex and fine-scale questions to be asked at a variety of taxonomic levels. At the phylogenetic level, whole mitochondrial genome …
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Ecological Magnification of Persistent Organochlorine Pesticides in an Illinois Watershed
… of Pisces, Decapoda, Insecta, Gastropoda, Annelida, Zooplankton and some amphibians and reptiles were tested for the presence of aldrin, dieldrin, DDT, DDE, heptachlor, heptachlor epoxide, and hexachlorobenzene. Concentration and ecological magnification data are presented for individual …
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Mitochondrial genomics and Northwestern Atlantic population genetics of marine annelids
… and population genetics, focused on the phylum Annelida. Recent expansions of molecular methods and the increasing diversity of available markers have allowed more complex and fine-scale questions to be asked at a variety of taxonomic levels. At the phylogenetic level, whole mitochondrial genome …
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Convergent Evolution of Biochemical Innovations in Polychaetes: Characterizing the Molecular Basis of Bioluminescence and Venom Production
… in different lineages of polychaetes worms (Annelida). We use an integrative approach, combining next-generation sequencing, phylogenetics and computational tools to evaluate whether these two convergent traits are the result of similar genetic and molecular mechanisms in different lineages. …
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An evaluation of the removal method for estimating benthic populations and diversity
… case-building Trichoptera, the Mollusca, and the Annelida. The highest catch abilities were shown by the smaller Chironomidae and the nonburrowing Ephemeroptera. Taxa with high catchability generally showed high emigrability for Surber and Kicknet methods, particularly the aquatic Insecta. The …
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Food Habits and the Utilization of Drift Organisms by Larval Fishes in the Middle Fork of Drake's Creek, Kentucky
… (Euchlanis sp.), diptera (Chironomidae), annelida (Naididae), copepoda (cyclopoids), and cladocera (Alona, Camptocerus, and unknown spp.). The northern hog sucker had the most diverse diet ingesting 15 different taxa, whereas the rosyface shiner consumed only 8 taxa. Rosyface shiners …
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Genomic and Phenotypic Analyses of Polychaete Sibling Species <i>Platynereis dumerilii</i> and <i>Platynereis massiliensis</i> in Relation to Ocean Acidification
… and its sibling <i>P. massiliensis</i> (Annelida, Nereididae) as driver of genetic differentiation and phenotype/genotype selection. <i>Platynereis</i> spp. populations were sampled in five geographical areas situated along a thermo-latitudinal gradient along the Italian coasts, …
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Spontaneous directional preferences in taxonomically and ecologically distinct organisms: examining cues and underlying mechanisms
… we investigated the effects of ectosymbionts (Annelida: Branchiobdellida) on magnetic alignment responses. Interestingly, the response of crayfish to magnetic cues parallels the complex symbiotic interaction between crayfish and their ectosymbiotic worms, which changes from mutualistic to …
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Spatial distribution and diversity of soft-bottom benthic invertebrates from demersal trawl surveys off the coast of Namibia
… Cnidaria (23 species), Porifera (5 species), Annelida (4 species), Chordata (2 species), Sipuncula (1 species) and Bryozoa (1 species). The diversity of benthic invertebrate taxa along Namibia's coast was found to increase in a south-to-north direction. High abundances of arthropods were …
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Reproductive biology, morphology and diet of Raja straeleni (spotted skate) in South Africa
… (8.2%), Mollusca (4.5%), Echinodermata (1.9%), Annelida (1.9%), and Nemertea (1.9%). The trophic level of R. straeleni was 3.98 ±0.05 SE. The trophic level was previously calculated as 3.74 (n = 421) (Ebert and Bazzarro 2007). The difference in findings is a result of a higher incidence of squid …
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Studies on the diversity and distribution of marine ichthyoparasites in Southern Africa
… taxa from six phyla: Acanthocephala (12), Annelida (6), Arthropoda (210), Cnidaria (11), Nematoda (6) and Platyhelminthes (133). The parasites formed 723 unique host-parasite pairs with 269 host taxa spread across the classes Actinopterygii (186), Elasmobranchii (80), Holocephalii (2) and …