Results 1 to 10 of about 99 (93)

Morphological analysis of Rhynchospio aff. asiatica (Annelida: Spionidae) and comments on the phylogeny and reproduction of the family Spionidae. [PDF]

open access: yesJ Oceanol Limnol, 2022
The genus Rhynchospio has fronto-lateral horns on prostomium, paired branchiae from chaetiger 2 to near the posterior end, capillary notochaetae only, and more than two pairs of pygidial cirri. Rhynchospio species are common in coastal soft bottom communities; nevertheless, many recorded Rhynchospio specimens around the world are currently undescribed.
Wang Z, Xu T, Qiu JW, Ji Y, Yu Z, Ke C.
europepmc   +5 more sources

Considerations for metabarcoding-based port biological baseline surveys aimed at marine nonindigenous species monitoring and risk assessments. [PDF]

open access: yesEcol Evol, 2020
Biodiversity inferences through metabarcoding of port samples allow biodiversity baseline surveys and early detection of nonindigenous species. Yet, successful application requires sampling different habitats, sites, and seasons. Abstract Monitoring introduction and spread of nonindigenous species via maritime transport and performing risk assessments ...
Rey A, Basurko OC, Rodriguez-Ezpeleta N.
europepmc   +2 more sources

The complete mitochondrial genome of Boccardiella hamata (Annelida: Polychaeta: Spionida). [PDF]

open access: yesMitochondrial DNA B Resour, 2021
In this study, the complete mitogenome sequence of Korean Boccardiella hamata was determined. This is the first complete mitogenome in the order Spionida. The complete mitogenome of B. hamata is 17,561 bp in length with 12 protein-coding genes (atp8 gene absent), 23 transfer RNAs, 2 ribosomal RNAs, and 1 control region.
Lee GH, Lee HE, Min GS.
europepmc   +6 more sources

Biodiversity assessment of tropical shelf eukaryotic communities via pelagic eDNA metabarcoding. [PDF]

open access: yesEcol Evol, 2019
Water samples from four Caribbean areas were sampled and subjected to universal eukaryote DNA metabarcoding. Tens of thousands of species were recovered, the vast majority being unicellular protists, most of which poorly known taxonomically and ecologically. Multivariate analyses clearly separated samples according to both region and habitat of origin.
Bakker J   +8 more
europepmc   +2 more sources

DNA metabarcoding unveils multiscale trophic variation in a widespread coastal opportunist. [PDF]

open access: yesMol Ecol, 2019
Abstract A thorough understanding of ecological networks relies on comprehensive information on trophic relationships among species. Since unpicking the diet of many organisms is unattainable using traditional morphology‐based approaches, the application of high‐throughput sequencing methods represents a rapid and powerful way forward.
Siegenthaler A   +4 more
europepmc   +2 more sources

Dataset complexity impacts both MOTU delimitation and biodiversity estimates in eukaryotic 18S rRNA metabarcoding studies

open access: yesEnvironmental DNA, Volume 4, Issue 2, Page 363-384, March 2022., 2022
We assessed how the choice of bioinformatics algorithm (UCLUST, VSearch, DADA2, and Deblur) impacts the downstream biological conclusions that are drawn from eukaryotic 18S rRNA metabarcoding studies by using a low‐complexity and high‐complexity dataset. ASV algorithms produce more biologically realistic metabarcoding outputs, with DADA2 being the most
Alejandro De Santiago   +3 more
wiley   +1 more source

Pseudopolydora (Annelida: Spionidae) from the Arabian Gulf, Kuwait

open access: yesEuropean Journal of Taxonomy, 2021
Seven species of Pseudopolydora are described and illustrated from the Arabian Gulf, Kuwait: P. achaeta Radashevsky & Hsieh, 2000, P. antennata (Claparède, 1868), P. arabica Radashevsky & Al-Kandari, 2020, P. auha sp. nov., P. kuwaiti sp. nov., P. melanopalpa sp. nov., and P. multispinosa sp. nov.
Vasily I. Radashevsky   +3 more
openaire   +7 more sources

Feeding behavior of Scolelepis sp. (Polychaeta: Spionidae) [PDF]

open access: yesBrazilian Journal of Oceanography, 2004
and may be part of a species complex, because some morphological variations (probably induced by changes in environmental factors such as salinity, temperature, or different sediment types) can be found in individuals from the same locality. Individuals can reach lengths of about 80 mm.
Pardo, Erica Veronica   +1 more
openaire   +4 more sources

Spionidae

open access: yes, 2012
Published as part of Radashevsky, Vasily I., 2012, Spionidae (Annelida) from shallow waters around the British Islands: an identification guide for the NMBAQC Scheme with an overview of spionid morphology and biology, pp.
Pagliosa, Paulo Roberto   +6 more
openaire   +5 more sources

Spionidae Grube 1850

open access: yes, 2020
Family SPIONIDAE Grube, 1850 Genus Streblospio Webster ...
Munari, Cristina   +5 more
openaire   +2 more sources

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