Summer gregarine infection in Antarctic krill <italic style="font-style: italic">Euphausia superba </italic>in the Dumont D’Urville Sea, East Antarctic

Yi XIONG; Sijie ZHAO; Guoping ZHU

doi:10.1007/s00343-024-2402-z

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Summer gregarine infection in Antarctic krill Euphausia superba in the Dumont D’Urville Sea, East Antarctic

Biology | Updated：2024-11-19

- Summer gregarine infection in Antarctic krill Euphausia superba in the Dumont D’Urville Sea, East Antarctic
- Summer gregarine infection in Antarctic krill Euphausia superba in the Dumont D’Urville Sea, East Antarctic
- 海洋湖沼学报(英文) 2024年42卷第5期页码：1651-1658
- Affiliations：
  
  1.College of Marine Living Resource Sciences and Management, Shanghai Ocean University, Shanghai201306, China
  2.Center for Polar Research, Shanghai Ocean University, Shanghai201306, China
  3.Polar Marine Ecosystem Group, the Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministry of Education, Shanghai201306, China
  4.National Engineering Research Center for Oceanic Fisheries, Shanghai201306, China
- Author bio：
  
  gpzhu@shou.edu.cn
- Funds：
  
  the ‘Inter-governmental Science and Technology Innovation (STI) Cooperation Special Program’ of the National Key Research and Development Program(2023YFE0104500 to GPZ)
- DOI：10.1007/s00343-024-2402-z
  中图分类号：
- 收稿：2022-12-28，
  
  网络首发：2024-01-08，
  
  纸质出版：2024-09-01
- Accepted：
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Summer gregarine infection in Antarctic krill Euphausia superba in the Dumont D’Urville Sea, East Antarctic[J]. 海洋湖沼学报(英文), 2024,42(5):1651-1658.

XIONG Yi,ZHAO Sijie,ZHU Guoping.Summer gregarine infection in Antarctic krill Euphausia superba in the Dumont D’Urville Sea, East Antarctic[J].Journal of Oceanology and Limnology,2024,42(05):1651-1658.
Summer gregarine infection in Antarctic krill Euphausia superba in the Dumont D’Urville Sea, East Antarctic[J]. 海洋湖沼学报(英文), 2024,42(5):1651-1658. DOI： 10.1007/s00343-024-2402-z.

XIONG Yi,ZHAO Sijie,ZHU Guoping.Summer gregarine infection in Antarctic krill Euphausia superba in the Dumont D’Urville Sea, East Antarctic[J].Journal of Oceanology and Limnology,2024,42(05):1651-1658. DOI： 10.1007/s00343-024-2402-z.

摘要

Abstract

Antarctic krill

Euphausia superba

plays a key role in the Antarctic food web. The trophic linkage between krill and other macro-organisms has been studied in the past decades

but the variability of parasites in krill is less studied and remains poorly understood. Therefore

it is important to understand the factors that influence abundance and infection of parasites in krill. Moreover

the relationship between the infection intensity of parasite and krill diet needs to be clarified

which is helpful for understanding the role of parasite in the food web. We investigated the abundance of the highly prevalent gregarine parasites in the digestive tract of krill and the factors influencing the gregarine infection to krill in the East Antarctic. The infection rate of

Cephaloidophora pacifica

Avdeev

1985 to krill (

=50 individuals) was 94%. The results of generalized linear model show the infection intensity of

pacifica

to the host was related significantly to the station

krill size

and maturity stage

but not the food species and abundance in the stomach of krill. Abundance of

pacifica

in krill differed among stations

and the lowest abundance occurred in the station nearest to the coast. Gregarines abundance varied among sexual maturity stages of krill and increased with krill size.

关键词

Keywords

references

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Summer gregarine infection in Antarctic krill Euphausia superba in the Dumont D’Urville Sea, East Antarctic

Summer gregarine infection in Antarctic krill Euphausia superba in the Dumont D’Urville Sea, East Antarctic

DOI：10.1007/s00343-024-2402-z

摘要

Abstract

关键词

Keywords

references