Neanthes fucata - Wikipedia
WEBNeanthes fucata is een borstelworm uit de familie Nereididae.Het lichaam van de worm bestaat uit een kop, een cilindrisch, gesegmenteerd lichaam en een staartstukje. De kop bestaat uit een prostomium (gedeelte voor de mondopening) en een peristomium (gedeelte rond de mond) en draagt gepaarde aanhangsels (palpen, antennen en cirri).Neanthes …
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The reproduction and larval development of Nereis fucata (Savigny ...
WEBMay 11, 2009 · The wide variety of reproductive patterns and behaviour in the many species of Nereidae already studied clearly justifies further research. But the life history of Nereis fucata (Savigny) is not only of interest from the comparative point of view.
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Macrobenthos of the North Sea - Polychaeta: Nereis fucata
WEBNereis fucata. Description; Classification; Nomenclature; Names; Literature; Media (Savigny, 1820) Description: Body long, tapering posteriorly, integument smooth. Prostomium with a pair of antennae without cirrophores, a pair of biarticulate palps slightly shorter than the antennae and 2 pairs of eyes in a trapezoid arrangement.
Nereis are osmoconformers. They are dioecious (individuals are male or female) and they release their haploid gametes into the water, a process called spawning. Moreover, upon fertilization and mitotic divisions of the zygote, Nereids form a larval stage which is similar to that of molluscs – i.e. a trochophore larva.
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Host-Adoption in the Commensal Polychaete Nereis Fucata
WEBMay 11, 2021 · The adults of Nereis fucata (Savigny) are commensal with hermit crabs and live within the upper whorls of the shells of their hosts. The mechanism of host adoption has been examined in juveniles reared in the laboratory.
THE REPRODUCTION AND LARVAL DEVELOPMENT OF NEREIS …
WEBAt maturity Nereis fucata undergoes a 'complete metamorphosis' (Herpin, 1926) to form a typical heteronereid with an anterior unmodified region and a posterior natatory region. It has been fully described and figured by Fage (1904), and Charrier (1921) has given a detailed account of the internal modifications which take place.
Key: Step 1. Choose key type - Naturalis Biodiversity Center
WEBChoose between picture key and text key. Text key to the higher taxa of the North Sea Polychaeta. Step 2. 1. Picture key to the species of North Sea Polychaeta. Step 68. 1.
The Life-Cycle of the Polychaete Nereis Virens
WEBAdult males of Nereis virens (Sars) spawn while swarming in mid-water and show epitokous changes which include enlarged parapodia, natatory chaetae and histolysis of the body wall. Females spawn while in their burrows and do not show such changes. An artificial rise in temperature can induce premature spawning.
The reproduction and larval development of Nereis fucata (Savigny ...
WEBIt is proposed to confine the present account to the reproduction and development up to the time when the larvae settle on the bottom, and the mechanism of host-adoption, and related topics, will be reported in later papers. The wide variety of reproductive patterns and behaviour in the many species of Nereidae already studied clearly justifies further …
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