Reproduction and larval development of two sympatric <i>Pseudopolydora</i> species (Annelida: Spionidae) in Japan

Kondoh, Tomohiko; Abe, Haruo; Sato-Okoshi, Waka

doi:10.1080/07924259.2017.1318095

Cited by 4 publications

(7 citation statements)

References 29 publications

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“…However, the larvae of species in these descriptions resemble those of Pseudopolydora cf. reticulata Radashevsky & Hsieh, 2000 described by Kondoh et al (2017) and of the present study in having planktotrophic development without nurse eggs and distinct dorsal melanophores including a middorsal melanophore on the first chaetiger. The taxonomy of P. kempi is unclear because its original description is quite brief, and the current location of type specimen is unknown (Radashevsky and Hsieh 2000).…”

Section: Genus Pseudopolydora Czerniavsky 1881supporting

confidence: 57%

“…kempi by Kondoh et al (2017). These species have adelphophagic and lecithotrophic larval development, in which larvae feed on nurse eggs in brood capsules, hatch at a very late stage, and have a short pelagic life (Blake and Woodwick 1975;Kondoh et al 2017). Reproduction and larval development of these species under the name of P. kempi and P. kempi japonica were also described by Srikrishnadhas and Ramamoorthi (1977), Myohara (1979), andRadashevsky (1985).…”

Section: Genus Pseudopolydora Czerniavsky 1881mentioning

confidence: 90%

“…Gastrotrochs occur in irregular pattern. Modified chaetae in chaetiger V and ventral hooded hooks from chaetiger VIII onwards develop in late larvae (Hannerz 1956, as Polydora;Rullier 1963, as Polydora;Rasmussen 1973;Blake and Woodwick 1975;Srikrishnadhas and Ramamoorthi 1977;Wu and Chen 1980;Radashevsky 1983Radashevsky , 1985Plate and Husemann 1994, as Polydora;Hsieh 1994;Blake 2006;Radashevsky and Migotto 2009;Kondoh et al 2017).…”

Section: Genus Pseudopolydora Czerniavsky 1881mentioning

confidence: 99%

“…The larval morphology of this species observed in the present study agrees with the descriptions of P. kempi by Blake and Woodwick (1975) and of P. cf. kempi by Kondoh et al (2017). These species have adelphophagic and lecithotrophic larval development, in which larvae feed on nurse eggs in brood capsules, hatch at a very late stage, and have a short pelagic life (Blake and Woodwick 1975;Kondoh et al 2017).…”

Section: Genus Pseudopolydora Czerniavsky 1881mentioning

confidence: 99%

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Molecular identification and larval morphology of spionid polychaetes (Annelida, Spionidae) from northeastern Japan

Abe¹,

Sato-Okoshi²

2021

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Planktonic larvae of spionid polychaetes are among the most common and abundant group in coastal meroplankton worldwide. The present study reports the morphology of spionid larvae collected mainly from coastal waters of northeastern Japan that were identified by the comparison of adult and larval 18S and 16S rRNA gene sequences. The molecular analysis effectively discriminated the species. Adult sequences of 48 species from 14 genera (Aonides Claparède, 1864; Boccardia Carazzi, 1893; Boccardiella Blake & Kudenov, 1978; Dipolydora Verrill, 1881; Laonice Malmgren, 1867; Malacoceros Quatrefages, 1843; Paraprionospio Caullery, 1914; Polydora Bosc, 1802; Prionospio Malmgren, 1867; Pseudopolydora Czerniavsky, 1881; Rhynchospio Hartman, 1936; Scolelepis Blainville, 1828; Spio Fabricius, 1785; Spiophanes Grube, 1860) and larval sequences of 41 species from 14 genera (Aonides; Boccardia; Boccardiella; Dipolydora; Laonice; Paraprionospio; Poecilochaetus Claparède in Ehlers, 1875; Polydora; Prionospio; Pseudopolydora; Rhynchospio; Scolelepis; Spio; Spiophanes) of spionid polychaetes were obtained; sequences of 27 of these species matched between adults and larvae. Morphology of the larvae was generally species‐specific, and larvae from the same genus mostly shared morphological features, with some exceptions. Color and number of eyes, overall body shape, and type and arrangement of pigmentation are the most obvious differences between genera or species. The morphological information on spionid larvae provided in this study contributes to species or genus level larval identification of this taxon in the studied area. Identification keys to genera and species of planktonic spionid larvae in northeastern Japan are provided. The preliminary results of the molecular phylogeny of the family Spionidae using 18S and 16S rRNA gene regions are also provided.

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Section: Genus Pseudopolydora Czerniavsky 1881supporting

confidence: 57%

Section: Genus Pseudopolydora Czerniavsky 1881mentioning

confidence: 90%

Section: Genus Pseudopolydora Czerniavsky 1881mentioning

confidence: 99%

Section: Genus Pseudopolydora Czerniavsky 1881mentioning

confidence: 99%

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Molecular identification and larval morphology of spionid polychaetes (Annelida, Spionidae) from northeastern Japan

Abe¹,

Sato-Okoshi²

2021

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“…reticulata has long-term planktonic larval development while the more locally distributed Pseudopolydora cf. kempi shows shortterm planktonic larval or direct development (Kondoh et al 2017).…”

Section: Distribution Of Spionid Polychaetes Around Tokyo Baymentioning

confidence: 99%

Habitat availability determines distribution patterns of spionid polychaetes (Annelida: Spionidae) around Tokyo Bay

et al. 2019

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An investigation of the distribution and habitat utilization of spionid polychaetes in Tokyo Bay revealed eight shellboring and 18 non-boring (interstitial, epifaunal, and infaunal) species, of these 11 species were recorded in the area for the first time. Most of the boring and interstitial species, which are associated with mollusc shells, were mainly distributed in exposed environments favoured by their host species outside Tokyo Bay. Only two boring species, Polydora websteri and Polydora haswelli preferred the enclosed waters of Tokyo Bay. Epifaunal and infaunal species were mainly distributed in the sandy and/or muddy sediment within Tokyo Bay. A widespread or localized distribution pattern within species was observed corresponding to the larval developmental mode. We concluded that habitat availability determines distribution patterns of spionid polychaetes around Tokyo Bay. Novel habitats for Boccardiella hamata, Boccardia proboscidea, Carazziella spongilla, and Polydora cornuta were recorded. Boccardia pseudonatrix, which was recorded for the first time from Japan with clear locality information, is considered to be a potential alien species.

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Polydorid species (Annelida: Spionidae) associated with commercially important oyster shells and their shell infestation along the coast of Normandy, in the English Channel, France

et al. 2022

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Polydorid species (Annelida, Spionidae), which inhabit the shells of the commercially important oyster Crassostrea gigas, were investigated along the coast of Normandy, France. Eight species, including five new records for Normandy (Polydora onagawaensis, Polydora websteri, Boccardia pseudonatrix, Boccardia proboscidea, and Boccardiella hamata) and two first records in European waters (P. onagawaensis and B. pseudonatrix), were identified based on morphological, molecular biological, and ecological characteristics. Polydora onagawaensis, which belongs to the Polydora ciliata/websteri complex, was discovered in the shells of wild and suspended cultured oysters, as well as in limestone substrates. In the phylogenetic analysis of mitochondrial COI gene sequences, specimens of P. onagawaensis collected from Normandy were grouped together with specimens from the USA into a single clade and were distinguished from the other three lineages that comprised Japanese and USA specimens. Polydora websteri inhabited shells of suspended cultured oysters. Polydora hoplura, Dipolydora giardi, and Dipolydora sp. were observed in shells from the sandy oyster culture grounds. Boccardiella hamata has been found in wild oyster shells from muddy oyster culture grounds. Boccardia pseudonatrix was observed in the shells of both the wild and cultured oysters. Adult and juvenile Boccardia proboscidea were observed in coralline algae, as well as in suspended cultured oysters. Mud tubes were observed to protrude from the outer surface of the shells, and abnormal black and calcareous deposits were secreted on the inner surface of the shells against polydorid penetration.

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Reproduction and larval development of two sympatric Pseudopolydora species (Annelida: Spionidae) in Japan

Cited by 4 publications

References 29 publications

Molecular identification and larval morphology of spionid polychaetes (Annelida, Spionidae) from northeastern Japan

Molecular identification and larval morphology of spionid polychaetes (Annelida, Spionidae) from northeastern Japan

Habitat availability determines distribution patterns of spionid polychaetes (Annelida: Spionidae) around Tokyo Bay

Polydorid species (Annelida: Spionidae) associated with commercially important oyster shells and their shell infestation along the coast of Normandy, in the English Channel, France

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