The relation between cypris ultrastructure and metamorphosis in male and female Sacculina carcini (Crustacea, Cirripedia)

@article{Heg2004TheRB,
  title={The relation between cypris ultrastructure and metamorphosis in male and female Sacculina carcini (Crustacea, Cirripedia)},
  author={Jens Thorvald H{\o}eg},
  journal={Zoomorphology},
  year={2004},
  volume={107},
  pages={299-311}
}
  • J. Høeg
  • Published 1 December 1987
  • Biology
  • Zoomorphology
SummaryTo elucidate current controversies on sex in rhizocephalan barnacles, broods of Sacculina carcini, infesting the shore crab Carcinus maenas, were raised to cyprids in the laboratory and followed through settlement and metamorphosis. Free-swimming cyprids were studied by transmission electron microscopy and occur in male and female morphological types, which differ in the structure of carapace cuticle, antennular cuticle, antennular glands, and the cells suspected of being the stem cells… 
The morphology of the chemosensory aesthetasc-like setae used during settlement of cypris larvae in the parasitic barnacle Sacculina carcini (Cirripedia: Rhizocephala)
Rhizocephalans of the suborder Kentrogonida are parasitic barnacles whose female cypris larvae must locate a suitable host organism (a decapod crustacean), while the male cypris larvae must find a
Metamorphosis in the Cirripede Crustacean Balanus amphitrite
TLDR
Video microscopy is used to present a timeline and description of morphological events from settled cyprid to juvenile barnacle in the model species Balanus amphitrite, representing an important step towards both a broader understanding of the settlement ecology of this species and a platform for studying the factors that control its metamorphosis.
Metamorphosis in the cirripede crustacean Balanus amphitrite Metamorphosis in the Cirripede Crustacean Balanus amphitrite
TLDR
Video microscopy is used to present a timeline and description of morphological events from settled cyprid to juvenile barnacle in the model species Balanus amphitrite, representing an important step towards both a broader understanding of the settlement ecology of this species and a platform for studying the factors that control its metamorphosis.
Metamorphosis of the Pedunculate Barnacle Capitulum mitella Linnaeus, 1758 (Cirripedia: Scalpelliformes)
  • Gang Lin, Xiaozhen Rao
  • Biology
    Journal of the Marine Biological Association of the United Kingdom
  • 2016
In this paper, metamorphosis of laboratory-reared cyprids of the pedunculate cirripede, Capitulum mitella was successfully induced. A timeline and a detailed description of morphological events
Metamorphosis in Balanomorphan, Pedunculated, and Parasitic Barnacles: A Video-Based Analysis
TLDR
Cypris metamorphosis was followed using video microscopy in four species of cirripeds representing the suspension-feeding pedunculated and sessile Thoracica and the parasitic Rhizocephala to study the change from a free cypris larva to an attached suspension feeder or an endoparasite.
Cypris Larvae in Polysaccus Mediterraneus and Mycetomorpha Vancouverensis: Their Importance in Analyzing the Phylogeny and Sexual Evolution of Parasitic Barnacles (Crustacea: Cirripedia: Rhizocephala)
TLDR
The cypris larvae in two species of parasitic barnacles, Polysaccus mediterraneus and Mycetomorpha vancouverensis, from the eastern Mediterranean and the northern Pacific, are investigated using SEM to investigate the morphologies of the adult parasite.
The Anatomy and Sexual Biology of Boschmaella japonica, an Akentrogonid Rhizocephalan Parasite on Barnacles from Japan (Crustacea: Cirripedia: Rhizocephala)
TLDR
It is suggested that all species of the Chthamalophilidae are gonochorists, in which male cyprids implant spermatogonia directly into the mantle of female externae.
Larval Development in Peltogasterella Studied by Scanning Electron Microscopy (Crustacea: Cirripedia: Rhizocephala)
TLDR
Comparisons with larval development in Briarosaccus tenellus leads to the conclusion that the rhizocephalan ground pattern comprises six naupliar stages just as in other cirripedes (e.g., Thoracica).
Larval development of the rhizocephalan cirripede Briarosaccus tenellus (Maxillopoda: Thecostraca) reared in the laboratory: a scanning electron microscopy study
TLDR
A homology scheme between antennulary setae in these two species is established and the terminology used in describing cirripede nauplius and cypris larvae is revealed, often misleading or even erroneous and improvements are suggested.
From swimming towards sessility in two metamorphoses – the drastic changes in structure and function of the nervous system of the bay barnacle Amphibalanus improvisus (Crustacea, Thecostraca, Cirripedia) during development
TLDR
Through the larval development of Amphibalanus improvisus, a structural and thus also functional increase of complexity in favor of the peripheral nervous system and the ventral nerve cord is observed.
...
1
2
3
4
...

References

SHOWING 1-10 OF 42 REFERENCES
Male Cypris Metamorphosis and a New Male Larval Form, The Trichogon, in the Parasitic Barnacle Sacculina carcini (Crustacea: Cirripedia: Rhizocephala)
TLDR
Virgin externae of the parasitic barnacle Sacculina carcini Thompson were exposed to settlement of male cyprids and the formation of the trichogon and the kentrogon are regarded as homologous instars.
Sex determination inScalpellum scalpellum (Cirripedia: Thoracica: Lepadomorpha), a hermaphroditic goose barnacle with dwarf males
TLDR
It was concluded that all cyprid larvae of Scalpellum scalpellum are potential hermaphrodites, but that about 50% possess the capability of metamorphosing into dwarf males as well, if adult herm Aphrodites with free receptacles are available.
Cypris Settlement, Kentrogon Formation and Host Invasion in the Parasitic Barnacle Lernaeodiscus porcellanae (Müller) (Crustacea: Cirripedia: Rhizocephala)
TLDR
The anatomy of the female cypris is very similar to that of cyprids of the Thoracica, and much of the kentrogon anatomy can be interpreted as a defense against host crab grooming.
The cypris larvae of Sacculina carcini Thompson (Crustacea: Cirripedia: Rhizocephala)
Experiments on the determination and differentiation of sex in the bopyrid Stegophryxus hyptius Thompson.
TLDR
The free-swimming cryptonisci are sexually undifferentiated and sexually undetermined, and if removed from the host at an early age and transferred to the brood pouch of a female Stegophryxus, will transform into males.
THE LIFE HISTORY OF LERNAEODISCUS PORCELLANAE (CIRRIPEDIA: RHIZOCEPHALA) AND CO-EVOLUTION WITH ITS PORCELLANID HOST
ABSTRACT The elaborate life history of the rhizocephalan parasite Lernaeodiscus includes a number of counterdefensive measures specifically adapted to circumvent defense systems of the host crab
...
1
2
3
4
5
...