Micro‐ and Nanoforaminifera from Abyssal Northeast Atlantic Sediments: A Preliminary Report
Abstract Rose Bengal stained benthic foraminifera which pass through a 63 μm mesh (microforaminifera and nanoforaminifera) have been extracted by handsorting the fine sieve residues (> 45 μm, 31 μm, 28 μm, 20 μm, 15 μm) of abyssal sediment samples. The samples were collected using a multiple core...
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crwiley:10.1002/iroh.19950800223 2024-06-02T08:11:56+00:00 Micro‐ and Nanoforaminifera from Abyssal Northeast Atlantic Sediments: A Preliminary Report Gooday, Andrew J. Carstens, Marina Thiel, Hjalmar 1995 http://dx.doi.org/10.1002/iroh.19950800223 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Firoh.19950800223 https://onlinelibrary.wiley.com/doi/pdf/10.1002/iroh.19950800223 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Internationale Revue der gesamten Hydrobiologie und Hydrographie volume 80, issue 2, page 361-383 ISSN 0020-9309 journal-article 1995 crwiley https://doi.org/10.1002/iroh.19950800223 2024-05-03T10:46:39Z Abstract Rose Bengal stained benthic foraminifera which pass through a 63 μm mesh (microforaminifera and nanoforaminifera) have been extracted by handsorting the fine sieve residues (> 45 μm, 31 μm, 28 μm, 20 μm, 15 μm) of abyssal sediment samples. The samples were collected using a multiple corer in four areas of the northeast Atlantic between 31° N and 59° N. The abundance of these minute foraminifera varied from 2 specimens per 1 cm 2 (Madeira Abyssal Plain) to > 110 per 1 cm 2 (BIOTRANS area). They include a variety of taxa, the most common being certain rotaliid species, hormosinaceans and other multilocular agglutinated forms, the unilocular agglutinated genus Lagenammina , soft‐bodied agglutinated sphaeres and flasks (saccamminids and psammosphaerids) and allogromiids. Some specimens are < 63 μm in maximum dimension but others belonging to elongate taxa are longer. Two samples taken 10 cm apart on the Porcupine Abyssal Plain suggest that minute foraminifera may be patchily distributed on a small scale. One sample, which was overlain by substantial amounts of phytodetritus, contained > 100 stained specimens (> 30 per 1 cm 2 ) while the other, in which much less phytodetritus was present, yielded only 10 specimens (2.9 per 1 cm 2 ). This observation suggests that some micro‐ and nanoforaminifera may flourish in the presence of decaying organic matter, perhaps consuming the associated bacteria. The presence of phytodetritus may also explain why two of our samples from the Madeira Abyssal Plain (MAP) contained an order of magnitude more stained tiny foraminifera than two other MAP samples in which phytodetritus was absent. Article in Journal/Newspaper Northeast Atlantic Wiley Online Library Internationale Revue der gesamten Hydrobiologie und Hydrographie 80 2 361 383 |
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Wiley Online Library |
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English |
description |
Abstract Rose Bengal stained benthic foraminifera which pass through a 63 μm mesh (microforaminifera and nanoforaminifera) have been extracted by handsorting the fine sieve residues (> 45 μm, 31 μm, 28 μm, 20 μm, 15 μm) of abyssal sediment samples. The samples were collected using a multiple corer in four areas of the northeast Atlantic between 31° N and 59° N. The abundance of these minute foraminifera varied from 2 specimens per 1 cm 2 (Madeira Abyssal Plain) to > 110 per 1 cm 2 (BIOTRANS area). They include a variety of taxa, the most common being certain rotaliid species, hormosinaceans and other multilocular agglutinated forms, the unilocular agglutinated genus Lagenammina , soft‐bodied agglutinated sphaeres and flasks (saccamminids and psammosphaerids) and allogromiids. Some specimens are < 63 μm in maximum dimension but others belonging to elongate taxa are longer. Two samples taken 10 cm apart on the Porcupine Abyssal Plain suggest that minute foraminifera may be patchily distributed on a small scale. One sample, which was overlain by substantial amounts of phytodetritus, contained > 100 stained specimens (> 30 per 1 cm 2 ) while the other, in which much less phytodetritus was present, yielded only 10 specimens (2.9 per 1 cm 2 ). This observation suggests that some micro‐ and nanoforaminifera may flourish in the presence of decaying organic matter, perhaps consuming the associated bacteria. The presence of phytodetritus may also explain why two of our samples from the Madeira Abyssal Plain (MAP) contained an order of magnitude more stained tiny foraminifera than two other MAP samples in which phytodetritus was absent. |
format |
Article in Journal/Newspaper |
author |
Gooday, Andrew J. Carstens, Marina Thiel, Hjalmar |
spellingShingle |
Gooday, Andrew J. Carstens, Marina Thiel, Hjalmar Micro‐ and Nanoforaminifera from Abyssal Northeast Atlantic Sediments: A Preliminary Report |
author_facet |
Gooday, Andrew J. Carstens, Marina Thiel, Hjalmar |
author_sort |
Gooday, Andrew J. |
title |
Micro‐ and Nanoforaminifera from Abyssal Northeast Atlantic Sediments: A Preliminary Report |
title_short |
Micro‐ and Nanoforaminifera from Abyssal Northeast Atlantic Sediments: A Preliminary Report |
title_full |
Micro‐ and Nanoforaminifera from Abyssal Northeast Atlantic Sediments: A Preliminary Report |
title_fullStr |
Micro‐ and Nanoforaminifera from Abyssal Northeast Atlantic Sediments: A Preliminary Report |
title_full_unstemmed |
Micro‐ and Nanoforaminifera from Abyssal Northeast Atlantic Sediments: A Preliminary Report |
title_sort |
micro‐ and nanoforaminifera from abyssal northeast atlantic sediments: a preliminary report |
publisher |
Wiley |
publishDate |
1995 |
url |
http://dx.doi.org/10.1002/iroh.19950800223 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Firoh.19950800223 https://onlinelibrary.wiley.com/doi/pdf/10.1002/iroh.19950800223 |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_source |
Internationale Revue der gesamten Hydrobiologie und Hydrographie volume 80, issue 2, page 361-383 ISSN 0020-9309 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/iroh.19950800223 |
container_title |
Internationale Revue der gesamten Hydrobiologie und Hydrographie |
container_volume |
80 |
container_issue |
2 |
container_start_page |
361 |
op_container_end_page |
383 |
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1800758222196310016 |