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668 results for “polychaetes”
Conus ateralbus eating polychaete worm
<p>Conus ateralbus was consuming a polychaete worm. The specimen did not bury itself as it consumed the worm — it was thus exposed the entire time it was feeding on its prey. </p>
Figure 2 in Spatial and temporal variations of soft bottom polychaetes of Sinop Peninsula (southern Black Sea) with new records
Figure 2. Dendrogram of the sampling stations (A: autumn, W: winter, Sp: spring, S: summer).
Figure 1 in Spatial and temporal variations of soft bottom polychaetes of Sinop Peninsula (southern Black Sea) with new records
Figure 1. Map of the sampling stations.
Fig. 1 in Leocrates bitungensis (Hesionidae, Annelida): a new polychaete species from North Sulawesi, Indonesia
Fig. 1. Distributional map of all hesionid species occurring in Indonesia.
Southern Ocean Polychaetes: Southern Ocean Polychaetes (141) DwCA
SOAP was a workshop on circum-Antarctic polychaetes, held in March 2010 in Woods Hole, MA, USA. Senior specialists for selected polychaete families offered lectures and classes at the microscopes to younger scientists. Concurrently the senior specialists exchanged their notes on polychaetes from locations around Antarctica and in sub-Antarctic waters.<p></p>
Figure 2 in Macrobenthic community of an estuarine tidal flat on the Amazon coast: spatial variations and presence of polychaetes tubes
Figure 2. Relative abundance (%) of taxonomic (A) and feeding groups (B); mean abundance (± standard error) (C) and taxon richness (D) of the macrobenthic fauna of the two sampling plots in the study area.
Figure 3 in Macrobenthic community of an estuarine tidal flat on the Amazon coast: spatial variations and presence of polychaetes tubes
Figure 3. Principal Coordinates Analysis (PCO) of the samples of the macrobenthic fauna considering the (A) taxonomic composition and (B) functional group.The vectors represent species/groups correlating more than 50% (based on Spearman correlation coefficients) with one of the first two PCO axes.
Figure 1 in Macrobenthic community of an estuarine tidal flat on the Amazon coast: spatial variations and presence of polychaetes tubes
Figure 1. Map of the Piriá river estuary showing the study area (A); Area 1 (B); Area 2 (C); exposed portion of a Diopatra cuprea tube found in the study area and metallic sampler (D).
Figure 30. A–I, Serpula nudiradiata n in Descriptions of New Serpulid Polychaetes from the Kimberleys of Australia and Discussion of Australian and Indo-West Pacific Species of Spirobranchus and Superficially Similar Taxa
Figure 30. A–I, Serpula nudiradiata n.sp., from holotype, AM W202942: (A–E)
Figure 25. A–C, Hydroides trihamulatus n in Descriptions of New Serpulid Polychaetes from the Kimberleys of Australia and Discussion of Australian and Indo-West Pacific Species of Spirobranchus and Superficially Similar Taxa
Figure 25. A–C, Hydroides trihamulatus n.sp.—an older specimen from AM W202943: (A) anterior end
Figure 18. A–J, Hydroides simplidentatus n in Descriptions of New Serpulid Polychaetes from the Kimberleys of Australia and Discussion of Australian and Indo-West Pacific Species of Spirobranchus and Superficially Similar Taxa
Figure 18. A–J, Hydroides simplidentatus n.sp., from holotype AM W21415. (A) anterior end of
Fig. 7. Baruna Jaya VIII, 2015 in History of collection and discovery of polychaetes (Annelida), including a bibliography, from the Indo-Malay-Philippines Archipelago and surrounding seas
Fig. 7. Baruna Jaya VIII, 2015. Photo: LIPI, Jakarta.
Fig. 5 in History of collection and discovery of polychaetes (Annelida), including a bibliography, from the Indo-Malay-Philippines Archipelago and surrounding seas
Fig. 5. Syllis ramosa, original illustration of McIntosh (1885, pl. 31).
Fig. 3 in History of collection and discovery of polychaetes (Annelida), including a bibliography, from the Indo-Malay-Philippines Archipelago and surrounding seas
Fig. 3. Amphinome rostrata, original illustrations from Pallas (1766), pl. 8, figs. 14–18.
Fig. 4 in History of collection and discovery of polychaetes (Annelida), including a bibliography, from the Indo-Malay-Philippines Archipelago and surrounding seas
Fig. 4. Sternapis spinosa, original illustrations from Sluiter (1882: pl. 1).
Fig. 2 in History of collection and discovery of polychaetes (Annelida), including a bibliography, from the Indo-Malay-Philippines Archipelago and surrounding seas
Fig. 2. Georg Eberhand Rumphius, engraved portrait as reproduced in Rumphius (1705).
Biodiversity, biogeography, and connectivity of polychaetes in the world's largest marine minerals exploration frontier
<p>The abyssal Clarion-Clipperton Zone (CCZ), Pacific Ocean, is an area of commercial importance owing to the growing interest in mining high-grade polymetallic nodules at the seafloor for battery metals. Research into the spatial patterns of faunal diversity, composition, and population connectivity is needed to better understand the ecological impacts of potential resource extraction. Here, a DNA taxonomy approach is used to investigate regional-scale patterns of taxonomic and phylogenetic alpha and beta diversity, and genetic connectivity, of the dominant macrofaunal group (annelids) across a 6 million km<sup>2</sup> region of the abyssal seafloor. We used a combination of new and published barcode data to study 1866 polychaete specimens using molecular species delimitation. Both phylogenetic and taxonomic alpha and beta diversity metrics were used to analyse spatial patterns of biodiversity. Connectivity analyses were based on haplotype distributions for a subset of the studied taxa. DNA taxonomy identified 291–314 polychaete species from the COI and 16S datasets respectively. Taxonomic and phylogenetic beta diversity between sites were relatively high and mostly explained by lineage turnover. Over half of pairwise comparisons were more phylogenetically distinct than expected based on their taxonomic diversity. Connectivity analyses in abundant, broadly distributed taxa suggest an absence of genetic structuring driven by geographical location. Species diversity in abyssal Pacific polychaetes is high relative to other deep-sea regions. Results suggest that environmental filtering, where the environment selects against certain species, may play a significant role in regulating spatial patterns of biodiversity in the CCZ. A core group of widespread species have diverse haplotypes but are well connected over broad distances. Our data suggest that the high environmental and faunal heterogeneity of the CCZ should be considered in policy decisions such as designating protected areas.</p>
Figure 5 in The population dynamics and reproduction of Streblospio gynobranchiata (Annelida, Spionidae), an alien polychaete worm, in the Sevastopol Bay (the Black Sea)
Figure 5. Adult worm (♂). Scale: 1 mm.
Figure 6 in The population dynamics and reproduction of Streblospio gynobranchiata (Annelida, Spionidae), an alien polychaete worm, in the Sevastopol Bay (the Black Sea)
Figure 6. Average abundance of S. gynobranchiata in Sevastopol Bay in May and in October 2013.
Biodiversity, biogeography, and connectivity of polychaetes in the world's largest marine minerals exploration frontier
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