Respiration and ammonium excretion by open ocean gelatinous zooplankton1
Warm‐water species of siphonophores, medusae, ctenophores, heteropods, pseudothecosomatous pteropods, salps, and doliolids were individually collected in jars by SCUBA divers in the western North Atlantic Ocean. In situ rates of oxygen consumption and ammonium excretion were estimated by difference...
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crwiley:10.4319/lo.1977.22.1.0108 2024-09-15T18:23:24+00:00 Respiration and ammonium excretion by open ocean gelatinous zooplankton1 Biggs, Douglas C. 1977 http://dx.doi.org/10.4319/lo.1977.22.1.0108 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.1977.22.1.0108 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.1977.22.1.0108 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Limnology and Oceanography volume 22, issue 1, page 108-117 ISSN 0024-3590 1939-5590 journal-article 1977 crwiley https://doi.org/10.4319/lo.1977.22.1.0108 2024-08-20T04:15:45Z Warm‐water species of siphonophores, medusae, ctenophores, heteropods, pseudothecosomatous pteropods, salps, and doliolids were individually collected in jars by SCUBA divers in the western North Atlantic Ocean. In situ rates of oxygen consumption and ammonium excretion were estimated by difference from control jars of seawater enclosed simultaneously. The cystonect siphonophores Rhizophysa filiformis and Bathyphysa sibogae had low respiration and excretion rates [4–7 µ l O 2 (mg protein‐h) −1 and 0.3–0.5 NH 4 + (mg protein‐h) −1 ], while several calycophore siphonophores, heteropods, and salps had high rates [19–192 µ l O 2 (mg protein‐h) −1 and 1.0–3.1 µ g NH 4 + (mg protein‐h) −1 ]. Most O: NH 4 + ratios ranged from 16–38 and suggest that both protein and lipid are important metabolites in tropical and subtropical gelatinous zooplankton. Many physonect siphonophores, scyphomedusae, heteropods, and salps excreted ammonium at rates exceeding 0.3 µ g‐atom NH 4 + ‐N h −1 and may play an important role in recycling nitrogen in the upper mixed layer of oligotrophic ocean regions. Article in Journal/Newspaper North Atlantic Wiley Online Library Limnology and Oceanography 22 1 108 117 |
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language |
English |
description |
Warm‐water species of siphonophores, medusae, ctenophores, heteropods, pseudothecosomatous pteropods, salps, and doliolids were individually collected in jars by SCUBA divers in the western North Atlantic Ocean. In situ rates of oxygen consumption and ammonium excretion were estimated by difference from control jars of seawater enclosed simultaneously. The cystonect siphonophores Rhizophysa filiformis and Bathyphysa sibogae had low respiration and excretion rates [4–7 µ l O 2 (mg protein‐h) −1 and 0.3–0.5 NH 4 + (mg protein‐h) −1 ], while several calycophore siphonophores, heteropods, and salps had high rates [19–192 µ l O 2 (mg protein‐h) −1 and 1.0–3.1 µ g NH 4 + (mg protein‐h) −1 ]. Most O: NH 4 + ratios ranged from 16–38 and suggest that both protein and lipid are important metabolites in tropical and subtropical gelatinous zooplankton. Many physonect siphonophores, scyphomedusae, heteropods, and salps excreted ammonium at rates exceeding 0.3 µ g‐atom NH 4 + ‐N h −1 and may play an important role in recycling nitrogen in the upper mixed layer of oligotrophic ocean regions. |
format |
Article in Journal/Newspaper |
author |
Biggs, Douglas C. |
spellingShingle |
Biggs, Douglas C. Respiration and ammonium excretion by open ocean gelatinous zooplankton1 |
author_facet |
Biggs, Douglas C. |
author_sort |
Biggs, Douglas C. |
title |
Respiration and ammonium excretion by open ocean gelatinous zooplankton1 |
title_short |
Respiration and ammonium excretion by open ocean gelatinous zooplankton1 |
title_full |
Respiration and ammonium excretion by open ocean gelatinous zooplankton1 |
title_fullStr |
Respiration and ammonium excretion by open ocean gelatinous zooplankton1 |
title_full_unstemmed |
Respiration and ammonium excretion by open ocean gelatinous zooplankton1 |
title_sort |
respiration and ammonium excretion by open ocean gelatinous zooplankton1 |
publisher |
Wiley |
publishDate |
1977 |
url |
http://dx.doi.org/10.4319/lo.1977.22.1.0108 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.1977.22.1.0108 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.1977.22.1.0108 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Limnology and Oceanography volume 22, issue 1, page 108-117 ISSN 0024-3590 1939-5590 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.4319/lo.1977.22.1.0108 |
container_title |
Limnology and Oceanography |
container_volume |
22 |
container_issue |
1 |
container_start_page |
108 |
op_container_end_page |
117 |
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1810463606963175424 |