Deep-Sea Benthic Foraminifera

Gooday, Andrew J.

doi:10.1016/b978-0-12-409548-9.09071-0

Cited by 10 publications

(14 citation statements)

References 183 publications

(111 reference statements)

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“…Among the variety of organisms associated with CWC macrohabitats and microhabitats, benthic foraminifera are a main faunal component, as in all deep-sea marine communities (Gooday, 2014). They play a key role in deep-sea ecology by, for example, processing fresh organic material deposited on the sea floor and providing an essential link between the lower and higher levels of deep-sea food-webs (Gooday, 1993(Gooday, , 2014Lipps & Valentine, 1970). Benthic foraminifera show a wide variety of feeding strategies (e.g.…”

Section: Ecology Of Deep-sea Benthic Foraminiferamentioning

confidence: 99%

“…suspension and deposit feeding, parasitism and symbiosis) and diets (e.g. carnivory, herbivory, detritus feeding and use of dissolved organic matter; Gooday, 2014). Deep-sea species generally feed on organic detritus and bacteria (Gooday et al, 2008).…”

Section: Ecology Of Deep-sea Benthic Foraminiferamentioning

confidence: 99%

“…Indeed, they are capable of suddenly responding to episodic food pulses, such as spring bloom events (Gooday, 1993;Gooday & Hughes, 2002). This opportunistic living strategy leads to the rapid accumulation of an important number of individuals during a short time interval (Gooday, 2014). The composition and density of benthic foraminiferal faunas in the deep-sea is primarily governed by the flux of organic matter reaching the sea floor (Fontanier et al, 2008;Jorissen et al, 2007;Lutze & Coulbourn, 1984) and by the geochemical gradients (oxygen and possibly nitrate) in the sediment pore water (Gooday, 2014;Jorissen et al, 1995).…”

Section: Ecology Of Deep-sea Benthic Foraminiferamentioning

confidence: 99%

“…This opportunistic living strategy leads to the rapid accumulation of an important number of individuals during a short time interval (Gooday, 2014). The composition and density of benthic foraminiferal faunas in the deep-sea is primarily governed by the flux of organic matter reaching the sea floor (Fontanier et al, 2008;Jorissen et al, 2007;Lutze & Coulbourn, 1984) and by the geochemical gradients (oxygen and possibly nitrate) in the sediment pore water (Gooday, 2014;Jorissen et al, 1995). In contrast to shallow-water settings, temperature and salinity only play a minor role on the distribution of benthic foraminifera in the deep-sea (Gooday, 2014;Jorissen et al, 2007).…”

Section: Ecology Of Deep-sea Benthic Foraminiferamentioning

confidence: 99%

See 3 more Smart Citations

Benthic foraminiferal faunas associated with cold‐water coral environments in the North Atlantic realm

Fentimen

Schmiedl

Rüggeberg

et al. 2021

The Depositional Record

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Section: Ecology Of Deep-sea Benthic Foraminiferamentioning

confidence: 99%

Section: Ecology Of Deep-sea Benthic Foraminiferamentioning

confidence: 99%

Section: Ecology Of Deep-sea Benthic Foraminiferamentioning

confidence: 99%

Section: Ecology Of Deep-sea Benthic Foraminiferamentioning

confidence: 99%

See 2 more Smart Citations

Benthic foraminiferal faunas associated with cold‐water coral environments in the North Atlantic realm

Fentimen

Schmiedl

Rüggeberg

et al. 2021

The Depositional Record

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“…Consequently, primary production in the oligotrophic Arctic basins is low (typically 1-15 g C m −2 year −1 ) with low levels of vertical flux of generally ≤1 g C m −2 year −1 below 120 m depth, and often less than half of that reaching the deep-sea floor (Wiedmann et al, 2020). These levels are considerably lower than other deep-sea areas, where pelagic primary production is highly variable, but often exceeds 20-50 g C m −2 year −1 (Karl et al, 1996;Levin and Gooday, 2003;Emerson, 2014).…”

Section: Introductionmentioning

confidence: 99%

Functional Pattern of Benthic Epifauna in the Chukchi Borderland, Arctic Deep Sea

et al. 2021

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Assessment of Arctic deep-sea ecosystem functioning is currently an urgent task considering that ongoing sea-ice reduction opens opportunities for resource exploitation of yet understudied deep-sea regions. We used Biological Trait Analysis to evaluate ecosystem functioning and test if common paradigms for deep-sea fauna apply to benthic epifauna of the deep-sea Arctic Chukchi Borderland (CBL). We also investigated the influence of environmental factors on the functional structure of the epifauna. The analysis was performed for 106 taxa collected with a beam trawl and a Remotely Operated Vehicle from 486 to 2610 m depth. The most common trait modalities were small-medium size, mobile, benthic direct and lecithotrophic larval development, and predatory feeding, which mostly supports the current view of epifauna in the global deep sea. Functional composition of epifauna differed between two depth strata (486–1059 m and 1882–2610 m), with depth and sediment carbon content explaining most of the functional variability. Proportional abundances of the modalities free-living, swimming, suspension feeders, opportunists/scavengers, internal fertilization and globulose were higher at deep stations. Functional redundancy (FR) was also higher there compared to the mid-depth stations, suggesting adaptation of fauna to the more homogeneous deep environment by fewer and shared traits. Mid-depth stations represented higher functional variability in terms of both trait modality composition and functional diversity, indicating more variable resource use in the more heterogeneous habitat. Food input correlated positively with the proportional abundance of the modalities tube-dwelling, sessile and deposit feeding. Areas with drop stones were associated with higher proportional abundance of the modalities attached, upright, and predators. Comparatively low FR may render the heterogeneous mid-depth area of the CBL vulnerable to disturbance through the risk of loss of functions. Across the study area, high occurrence of taxa with low dispersal ability among adult and larval life stages may prevent rapid adaptation to changes, reduce ability to recolonize and escape perturbation.

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Basal monothalamous and pseudochambered benthic foraminifera associated with planktonic foraminiferal shells and mineral grains from the Porcupine Abyssal Plain, NE Atlantic

Stefanoudis

Gooday

2014

Mar Biodiv

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We present a survey of 'live' (stained) and dead monothalamous (single-chambered, mainly spherical) and pseudochambered (chain-like) foraminifera associated with planktonic foraminiferal shells and mineral grains, based on two samples from one abyssal plain site (F2, 4,880 m water depth) and one abyssal hill site (H4, 4,330 m water depth) on the Porcupine Abyssal Plain (PAP), northeast Atlantic. Our study is the first to focus on this poorly known component of abyssal foraminiferal faunas and highlight their abundances and diversity at the PAP. In both samples these monothalamids and pseudochambered forms represented 27-35 % and 18-23 %, respectively, of the entire 'live' and dead foraminiferal assemblage (>150 μm, 0-1 cm sediment layer). Among 1078 stained and dead specimens we recognize a total of 18 distinct morphotypes on the basis of test characteristics. Another 144 specimens could not be assigned to any morphotype and are regarded as indeterminate. Most of the monothalamids are small (<150 μm), although some incorporate planktonic foraminiferal shells to create larger structures. In absolute terms, stained and dead individuals of these morphotypes were more abundant at the abyssal hill site although data from additional samples are needed to confirm if this is representative of differences between abyssal hills and the surrounding abyssal plain at the PAP. Agglutinated spheres and domes similar to some of our abyssal forms have been reported from shelf and slope settings, but they are generally much larger. Small agglutinated spheres are very common in the abyssal Pacific, at depths close to or below the carbonate compensation depth (CCD). However, they are composed largely of siliceous particles, including mineral grains, radiolarians and diatom fragments. In contrast, carbonate oozes at the PAP, situated above the CCD, are rich in coccoliths and planktonic foraminiferal shells, which are used in the construction of agglutinated spheres and domes. Our results underline the important contribution made by largely underestimated foraminiferal taxa to abyssal communities.

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Deep-Sea Benthic Foraminifera

Cited by 10 publications

References 183 publications

Benthic foraminiferal faunas associated with cold‐water coral environments in the North Atlantic realm

Benthic foraminiferal faunas associated with cold‐water coral environments in the North Atlantic realm

Functional Pattern of Benthic Epifauna in the Chukchi Borderland, Arctic Deep Sea

Basal monothalamous and pseudochambered benthic foraminifera associated with planktonic foraminiferal shells and mineral grains from the Porcupine Abyssal Plain, NE Atlantic

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