Reproduction and larval development of<i>Polydora</i>from Northern New England (Polychaeta: spionidae)

Blake, James A.

doi:10.1080/00785326.1969.10419288

Cited by 142 publications

(125 citation statements)

References 18 publications

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“…Except for dominant spionids, identification was only to family, because generic morphological characters cannot be fully distinguished at the larval phase. For taxonomic identification of polychaete larvae, following resources were used as reference: Thorson (1946), Hannerz (1956), Yamaji (1966, Blake (1969Blake ( , 1975, Blake and Woodwick (1975), Srikrishnadhas and Ramamoorthi (1977), Radashevsky (1983Radashevsky ( 1985, Bhaud and Cazaux (1987), Plate and Husemann (1994), Chihara and Murano (1997), Shanks (2001), andRodriguez-Valencia (2003).…”

Section: Methodsmentioning

confidence: 99%

Seasonal changes of planktonic polychaete larvae and chlorophyll a concentration in Onagawa Bay, northeastern Japan

Abe

Sato-Okoshi

Endo

2011

Italian Journal of Zoology

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Seasonal changes of abundance and composition of planktonic polychaete larvae were investigated monthly from January 2007 to December 2009 in Onagawa Bay, northeastern Japan. Larvae belonging to 18 families were identified: Spionidae, Serpulidae, Nephtyidae, Magelonidae, Phyllodocidae, Polynoidae, Syllidae, Capitellidae, Nereididae, Terebellidae, Arenicolidae, Chaetopteridae, Oweniidae, Pectinariidae, Glyceridae, Dorvilleidae, Sabellidae, and Lumbrineridae. The density of polychaete larvae varied from 18 to 6901 ind m −3 . Spionid larvae occurred throughout the year, being the dominant family throughout the year, comprising 88.7% of the total, with those belonging to genus Polydora dominant during winter to spring and Pseudopolydora during summer to autumn. Larvae belonging to the Serpulidae, Magelonidae, Nephtyidae, Phyllodocidae, and Polynoidae tended to be frequent in summer and autumn. The close timing between phytoplankton blooms and the production of planktonic polychaete larvae is discussed, and it is noted that most planktonic polychaete larvae tended to synchronize with summer phytoplankton increases and autumn blooms in the near-surface water, but not with spring blooms. One possible explanation is the diversity of food during summer to autumn in Onagawa Bay. Only larvae belonging to the genus Polydora were synchronized with spring phytoplankton blooms, perhaps reflecting their northern biogeographic origin.

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Section: Methodsmentioning

confidence: 99%

Seasonal changes of planktonic polychaete larvae and chlorophyll a concentration in Onagawa Bay, northeastern Japan

Abe

Sato-Okoshi

Endo

2011

Italian Journal of Zoology

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“…Within Spionidae, different populations of Polydora species are known to have different PLDs and feeding modes, exhibiting adelphophagy, the production of both planktotophic and adelphophagic larvae (where unfertilized eggs are ingested by the developing larvae) (Blake, 1969;Mackay and Gibson, 1999). Other spionids such as Streblospio benedicti exhibit poecilogony, producing both planktotrophic and lecithotrophic larvae (Levin, 1984).…”

Section: Widespread Antarctic Speciesmentioning

confidence: 99%

Distributional Patterns of Polychaetes Across the West Antarctic Based on DNA Barcoding and Particle Tracking Analyses

et al. 2017

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Recent genetic investigations have uncovered a high proportion of cryptic species within Antarctic polychaetes. It is likely that these evolved in isolation during periods of glaciation, and it is possible that cryptic populations would have remained geographically restricted from one another occupying different regions of Antarctica. By analysing the distributions of nine morphospecies, (six of which contained potential cryptic species), we find evidence for widespread distributions within the West Antarctic. Around 60% of the cryptic species exhibited sympatric distributions, and at least one cryptic clade was found to be widespread. Additional DNA barcodes from GenBank and morphological records extended the observed range of three species studied here, and indicate potential circum-Antarctic traits. Particle tracking analyses were used to model theoretical dispersal ranges of pelagic larvae. Data from these models suggest that the observed species distributions inferred from genetic similarity could have been established and maintained through the regional oceanographic currents, including the Antarctic Circumpolar Current (ACC) and its coastal counter current. Improved understanding of the distribution of Antarctic fauna is essential for predicting the impacts of environmental change and determining management strategies for the region.

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“…Furthermore, the success of pests may be related to their life history strategies; polydorids usually have high fecundity, with some species producing > 5000 planktotrophic larvae per brood, and an average of approx. 2574 (Blake 1969a, Blake & Arnofsky 1999 which may result in high propagule pressure. However, not all worms that become established on farms become pests (e.g.…”

Section: Larval Developmental Modesmentioning

confidence: 99%

“…Planktotrophic larvae usually emerge from the maternal burrow when 3 to 8 chaetigers long, while adelphophagic and lecitho trophic larvae emerge when 5 to 19 chaetigers long (Blake 1969a, Blake & Arnofsky 1999. Some species are poecilogonous, thus producing different types of larvae as described above, either by the same individual, or different individuals within the same population (Gibson 1997, Blake & Arnofsky 1999, Blake 2006.…”

Section: Larval Developmental Modesmentioning

confidence: 99%

Polydorid polychaetes on farmed molluscs: distribution, spread and factors contributing to their success

Simon¹,

Sato-Okoshi²

2015

Aquacult. Environ. Interact.

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Species of the Polydora-complex (i.e. polydorids) are the most common shell-boring polychaetes found on cultured molluscs. However, which species become problematic depend on their ability to reach mollusc farms and flourish under culture conditions. We therefore hypothesise that the planktonic larval phases of pest polydorids on molluscs grown on-shore will be short (as is typical of adelphophagic larvae, which can maintain large local populations) while those of polydorids on molluscs grown off-shore will be long (as is typical of planktotrophic larvae, which can disperse long distances to farms). Principal component and discriminant analyses of information extracted from the literature partly supported this hypothesis by identifying larval developmental mode and pest species as contributing more to pest status than host species and culture mode, with differential influence on pest status in different situations and potential bias through incorrect identification of polydorid species. χ 2 analyses confirmed that pest status depended on host culture method and pest larval mode. Pest polydorids producing adelphophagic larvae in on-shore systems may reflect the development of large local populations on hosts with culture periods > 2 yr. The many records of pests in off-shore and near-shore systems with pest species producing planktotrophic larvae may reflect shorter host culture periods and the higher incidence of planktotrophy among polydorid species in general. Polydora websteri, P. uncinata, P. hoplura and P. haswelli are the most frequently recorded and widespread pest species globally, although the taxonomy of these and shell-boring P. ciliata and Boccardia polybranchia need to be clarified. The positive relationships between the numbers of alien shell-borers and pests, and the number of hosts cultured per country confirm that mollusc aquaculture is an important vector and reservoir of alien pest polychaetes.

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Reproduction and larval development ofPolydorafrom Northern New England (Polychaeta: spionidae)

Cited by 142 publications

References 18 publications

Seasonal changes of planktonic polychaete larvae and chlorophyll a concentration in Onagawa Bay, northeastern Japan

Seasonal changes of planktonic polychaete larvae and chlorophyll a concentration in Onagawa Bay, northeastern Japan

Distributional Patterns of Polychaetes Across the West Antarctic Based on DNA Barcoding and Particle Tracking Analyses

Polydorid polychaetes on farmed molluscs: distribution, spread and factors contributing to their success

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