Age and Feeding Habits of Caml Grenadier Macrourus caml in Cosmonauts Sea
Macrourus caml is a main by-catch in the Southern Ocean fishery and a main prey species of Antarctic toothfish Dissostichus mawsoni; it plays an important role in the Southern Ocean ecosystem. In this study, age estimation and stomach content analysis were conducted by using samples collected from t...
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ftmdpi:oai:mdpi.com:/2410-3888/8/1/56/ 2023-08-20T04:01:50+02:00 Age and Feeding Habits of Caml Grenadier Macrourus caml in Cosmonauts Sea Siqing Xu Peng Sun Chi Zhang Jianchao Li Xiaoyu Xi Shuyang Ma Wenchao Zhang Yongjun Tian agris 2023-01-16 application/pdf https://doi.org/10.3390/fishes8010056 EN eng Multidisciplinary Digital Publishing Institute https://dx.doi.org/10.3390/fishes8010056 https://creativecommons.org/licenses/by/4.0/ Fishes; Volume 8; Issue 1; Pages: 56 Macrourus caml age stomach contents analysis metabarcoding analysis Text 2023 ftmdpi https://doi.org/10.3390/fishes8010056 2023-08-01T08:19:23Z Macrourus caml is a main by-catch in the Southern Ocean fishery and a main prey species of Antarctic toothfish Dissostichus mawsoni; it plays an important role in the Southern Ocean ecosystem. In this study, age estimation and stomach content analysis were conducted by using samples collected from the Cosmonauts Sea in 2021. The main objectives of this study were to estimate the age and diet of grenadier M. caml and explore the feeding habits of M. caml. Morphological analysis and molecular identification were conducted to determine the diet of M. caml in this study. Stomach content analysis showed that M. caml mainly fed on Malacostraca, Sagittoidea, Cnidaria and Algae, with the Malacostraca accounting for over 50%. The feeding habits of male and female M. caml were similar. The age of M. caml ranged from 9 to 19 years. Additionally, with the increase of body size, the proportion of Cnidaria was decreasing whereas the proportion of Malacostraca was increasing. The results would provide a reference for exploring the trophic level of M. caml and the food web in the Cosmonauts Sea. Text Antarc* Antarctic Antarctic Toothfish Cosmonauts sea Southern Ocean MDPI Open Access Publishing Antarctic Cosmonauts Sea ENVELOPE(45.047,45.047,-64.939,-64.939) Southern Ocean Fishes 8 1 56 |
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Open Polar |
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MDPI Open Access Publishing |
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ftmdpi |
language |
English |
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Macrourus caml age stomach contents analysis metabarcoding analysis |
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Macrourus caml age stomach contents analysis metabarcoding analysis Siqing Xu Peng Sun Chi Zhang Jianchao Li Xiaoyu Xi Shuyang Ma Wenchao Zhang Yongjun Tian Age and Feeding Habits of Caml Grenadier Macrourus caml in Cosmonauts Sea |
topic_facet |
Macrourus caml age stomach contents analysis metabarcoding analysis |
description |
Macrourus caml is a main by-catch in the Southern Ocean fishery and a main prey species of Antarctic toothfish Dissostichus mawsoni; it plays an important role in the Southern Ocean ecosystem. In this study, age estimation and stomach content analysis were conducted by using samples collected from the Cosmonauts Sea in 2021. The main objectives of this study were to estimate the age and diet of grenadier M. caml and explore the feeding habits of M. caml. Morphological analysis and molecular identification were conducted to determine the diet of M. caml in this study. Stomach content analysis showed that M. caml mainly fed on Malacostraca, Sagittoidea, Cnidaria and Algae, with the Malacostraca accounting for over 50%. The feeding habits of male and female M. caml were similar. The age of M. caml ranged from 9 to 19 years. Additionally, with the increase of body size, the proportion of Cnidaria was decreasing whereas the proportion of Malacostraca was increasing. The results would provide a reference for exploring the trophic level of M. caml and the food web in the Cosmonauts Sea. |
format |
Text |
author |
Siqing Xu Peng Sun Chi Zhang Jianchao Li Xiaoyu Xi Shuyang Ma Wenchao Zhang Yongjun Tian |
author_facet |
Siqing Xu Peng Sun Chi Zhang Jianchao Li Xiaoyu Xi Shuyang Ma Wenchao Zhang Yongjun Tian |
author_sort |
Siqing Xu |
title |
Age and Feeding Habits of Caml Grenadier Macrourus caml in Cosmonauts Sea |
title_short |
Age and Feeding Habits of Caml Grenadier Macrourus caml in Cosmonauts Sea |
title_full |
Age and Feeding Habits of Caml Grenadier Macrourus caml in Cosmonauts Sea |
title_fullStr |
Age and Feeding Habits of Caml Grenadier Macrourus caml in Cosmonauts Sea |
title_full_unstemmed |
Age and Feeding Habits of Caml Grenadier Macrourus caml in Cosmonauts Sea |
title_sort |
age and feeding habits of caml grenadier macrourus caml in cosmonauts sea |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2023 |
url |
https://doi.org/10.3390/fishes8010056 |
op_coverage |
agris |
long_lat |
ENVELOPE(45.047,45.047,-64.939,-64.939) |
geographic |
Antarctic Cosmonauts Sea Southern Ocean |
geographic_facet |
Antarctic Cosmonauts Sea Southern Ocean |
genre |
Antarc* Antarctic Antarctic Toothfish Cosmonauts sea Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Toothfish Cosmonauts sea Southern Ocean |
op_source |
Fishes; Volume 8; Issue 1; Pages: 56 |
op_relation |
https://dx.doi.org/10.3390/fishes8010056 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/fishes8010056 |
container_title |
Fishes |
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8 |
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1 |
container_start_page |
56 |
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1774725045724119040 |