Changes in pelagic Polychaete assemblages along the California current system

Fernández-Álamo, María Ana; Sanvicente‐Añorve, Laura; Alatorre-Mendieta, Miguel

doi:10.1023/a:1026125705526

Cited by 6 publications

(11 citation statements)

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“…Within these regions, the pelagic polychaete community is reported to be divided into three groups: i.e. northern, southern, and transition communities (Fernández-Alamo et al 2003). We found three species of Lopadorrhynchidae, at the subtropical station; members of this family are known to be common in warm low latitude oceans (Rouse & Pleijel 2001).…”

Section: Community Structurementioning

confidence: 74%

“…1000 m -3 ) and transition (4.6 ind. 1000 m - 3) zones (Fernández-Alamo et al 2003). Dominance of T. septentrionalis in the northern community is also reported (Fernández-Alamo et al 2003).…”

Section: Community Structurementioning

confidence: 74%

“…2). We can compare these data with data on the pelagic polychaete community from the eastern North Pacific from the CalCOFI program, which collected from a grid of stations covering 41˚-21˚N in the California Current System (Fernández-Alamo et al 2003). Within these regions, the pelagic polychaete community is reported to be divided into three groups: i.e.…”

Section: Community Structurementioning

confidence: 99%

“…For the most dominant species in each region, body length and segment numbers were quantified, and their seasonal changes were evaluated. We compare data we obtained on polychaete community structure in the western North Pacific with data from the eastern North Pacific (California Current System) (Fernández-Alamo et al 2003). Based on seasonality in population structure, we identify some features of the life cycles of the dominant species.…”

Section: Introductionmentioning

confidence: 99%

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Community structure and seasonal changes in population structure of pelagic polychaetes collected by sediment traps moored in the subarctic and subtropical western North Pacific Ocean

et al. 2020

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Community structure and seasonal changes in the population structure of pelagic polychaetes were studied based on zooplankton samples collected by sediment traps moored at 200 m depth in the subarctic and subtropical western North Pacific throughout the year. Eight species belonging to seven genera and seven families occurred at the subarctic station, while twelve species belonging to ten genera and seven families were identified at the subtropical station. Polychaete abundance was 5.37 ± 0.44 ind. m-2 day-1 (annual mean ± standard error) at the subarctic station, and 1.36 ± 0.15 ind. m-2 day-1 at the subtropical station. Polychaete abundance at the subarctic station was high from May to August, but no seasonal patterns were observed at the subtropical station. The dominant species in the subarctic was Tomopteris septentrionalis, which accounted for 62.9% of annual mean abundance; at the subtropical station, the dominant species was Pelagobia sp. (22.8%). In the subarctic, small specimens of T. septentrionalis (<3 mm in body length) occurred only in winter (December-March). No clear seasonal changes in population structure of the subtropical Pelagobia sp. were detected. The latitudinal patterns we observed in the polychaete communities of the western North Pacific were similar to those previously observed in the eastern North Pacific. Changes in the population structure of T. septentrionalis suggest that the life cycle of this species is seasonal in the subarctic region.

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Section: Community Structurementioning

confidence: 74%

Section: Community Structurementioning

confidence: 74%

Section: Community Structurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Community structure and seasonal changes in population structure of pelagic polychaetes collected by sediment traps moored in the subarctic and subtropical western North Pacific Ocean

et al. 2020

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“…Our study was carried out in May, therefore the stations in correspondence of the Otranto Channel were possibly interested by relevant hydrodynamic exchanges that promoted the dragging and accumulation of higher concentration of polychaetes. It was reported that the geographical location of holoplanktonic polychaetes can be correlated to productivity and main water masses 14,77,78 , showing assemblages in areas of high primary and secondary production 66,79–84 . All the species found in the present study (except Pedinosoma curtum that represents only the 0.06% of polychaete community) were more abundant in the upper 200 m, and the main part (nineteen of twenty-two species) in the upper 100 m. As already reported, holoplanktonic polychaete species are distributed in the epipelagic region of the water column 5,8,9,71,85,86 , most probably because this layer is characterized by a large supply of food, with highest concentration of phytoplankton, microzooplankton and copepods 87,88 .…”

Section: Discussionmentioning

confidence: 99%

The Otranto Channel (South Adriatic Sea), a hot-spot area of plankton biodiversity: pelagic polychaetes

Guglielmo

Bergamasco

Minutoli

et al. 2019

Sci Rep

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Composition, density and specimen sizes of pelagic polychaete assemblages were analyzed in the Southern Adriatic Sea. The study was based on finely stratified vertical (0–1100 m) and spatial sampling (17 stations) representing spring conditions. Holoplanktonic polychaetes were distributed in both neritic and pelagic waters, although the highest densities were observed along the Otranto Channel. Analysis of the size frequency distribution revealed a trend with depth only for some species. Spatial distribution of holoplanktonic polychaete density was not related to bottom depth, being the organisms mainly concentrated in the epipelagic layer (0–100 m). The most abundant species showed maximum values below or within the thermocline and within the Deep Chlorophyll Maximum or just above it. Relations between polychaete presence and the underlying oceanographic mechanisms regulating the circulation in the Otranto Channel were discussed. The presence of several non-determined polychaete larvae (e.g. Syllidae) in the pelagic waters at 800–1100 m depths suggests the importance of the role of Levantine waters as main actual and potential carrier of species in the area, though a relevant contribution comes also from North Adriatic dense waters through deep spilling and cascading in the Southern Adriatic pit. These findings increase the knowledge on holoplanktonic polychaetes ecology within the South Adriatic Sea, and represent significant data in the monitoring of changes in biodiversity.

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Holopelagic Annelida from the Atlantic sector of the Southern Ocean and adjacent South Atlantic with descriptions of three new species

Kolbasova,

Syomin,

Mishin

et al. 2023

Mar. Biodivers.

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Changes in pelagic Polychaete assemblages along the California current system

Cited by 6 publications

References 0 publications

<p class="ZootaxaTitle"><strong>Community structure and seasonal changes in population structure of pelagic polychaetes collected by sediment traps moored in the subarctic and subtropical western North Pacific Ocean</strong></p>

<p class="ZootaxaTitle"><strong>Community structure and seasonal changes in population structure of pelagic polychaetes collected by sediment traps moored in the subarctic and subtropical western North Pacific Ocean</strong></p>

The Otranto Channel (South Adriatic Sea), a hot-spot area of plankton biodiversity: pelagic polychaetes

Holopelagic Annelida from the Atlantic sector of the Southern Ocean and adjacent South Atlantic with descriptions of three new species

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