南极翼足动物的摄食生态和微生物群

IF 1.6 4区环境科学与生态学 Q3 ECOLOGY

Aquatic Microbial Ecology Pub Date : 2021-01-01 DOI:10.3354/ame01981

PS Thibodeau, B. Song, C. Moreno, D. Steinberg

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引用次数: 4

摘要

翼足类(Limacina helicina antarctica)是西南极半岛(WAP)的优势食草动物，在区域食物网动态和生物地球化学循环中起着重要作用。本研究首次基于南方夏季WAP肠道内容物的16S和18S rRNA基因序列，对南极l.h.的肠道微生物群和摄食生态进行了研究。南极l.h.的真核肠道内容物表明，该物种主要以硅藻和鞭毛藻为食，并补充纤毛虫和有孔虫。Mollicutes细菌是肠道微生物组的一贯组成部分。确定南极l.h.的肠道微生物群和摄食生态有助于确定在快速环境变化地区控制翼足类丰度和分布的潜在机制。

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The feeding ecology and microbiome of the pteropod Limacina helicina antarctica

The pteropod (pelagic snail) Limacina helicina antarctica is a dominant grazer along the Western Antarctic Peninsula (WAP) and plays an important role in regional food web dynamics and biogeochemical cycling. For the first time, we examined the gut microbiome and feeding ecology of L. h. antarctica based on 16S and 18S rRNA gene sequences of gut contents in the WAP during austral summer. Eukaryotic gut contents of L. h. antarctica indicate that this species predominantly feeds on diatoms and dinoflagellates, supplementing its diet with ciliates and fora minifera. Mollicutes bacteria were a consistent component of the gut microbiome. Determining the gut microbiome and feeding ecology of L. h. antarctica aids in identifying the underlying mechanisms controlling pteropod abundance and distribution in a region of rapid environmental change.

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来源期刊

Aquatic Microbial Ecology 环境科学-海洋与淡水生物学

CiteScore

3.30

自引率

0.00%

发文量

审稿时长

3.0 months

期刊介绍： AME is international and interdisciplinary. It presents rigorously refereed and carefully selected Research Articles, Reviews and Notes, as well as Comments/Reply Comments (for details see AME 27:209), Opinion Pieces (previously called ''As I See It'') and AME Specials. For details consult the Guidelines for Authors. Papers may be concerned with: Tolerances and responses of microorganisms to variations in abiotic and biotic components of their environment; microbial life under extreme environmental conditions (climate, temperature, pressure, osmolarity, redox, etc.). Role of aquatic microorganisms in the production, transformation and decomposition of organic matter; flow patterns of energy and matter as these pass through microorganisms; population dynamics; trophic interrelationships; modelling, both theoretical and via computer simulation, of individual microorganisms and microbial populations; biodiversity. Absorption and transformation of inorganic material; synthesis and transformation of organic material (autotrophic and heterotrophic); non-genetic and genetic adaptation; behaviour; molecular microbial ecology; symbioses.