Are habitat changes driving protist community shifts? A case study in Daya Bay, China

Qin, Chuanxin; Zhu, Wentao; Ma, Hongmei; DingYu, Duan; Zuo, Tao; Xi, Shigai; Pan, Wanni

doi:10.1016/j.ecss.2019.106356

Cited by 14 publications

(11 citation statements)

References 49 publications

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“…Daya Bay is FIGURE 6 | Shannon diversity index for yellowfin sea bream at the species level. * means P < 0.05, ** means P < 0.01, and *** means P < 0.001. rich in biological resources and diverse habitats (Qin et al, 2019). It is a spawning, feeding and rearing place for many economic fisheries with good biodiversity protection (Wang et al, 2019).…”

Section: Composition Of the Yellowfin Sea Bream Diet In Daya Baymentioning

confidence: 99%

“…The present study was conducted in Daya Bay, which is a semienclosed subtropical bay surrounded by mountains on three sides located north of the South China Sea and east of the Pearl River Estuary and includes a variety of natural habitats, such as coral reefs, mangroves, rocks and other reefs (Xu, 1989;Yu et al, 2015;Qin et al, 2019). Yellowfin sea bream is an important species for stock enhancement in Daya Bay; however, the recovery of resources is still not satisfactory, even though stock enhancement activities have been carried out many times (Liu et al, 2019;Wang et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

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Is Metagenomic Analysis an Effective Way to Analyze Fish Feeding Habits? A Case of the Yellowfin Sea Bream Acanthopagrus latus (Houttuyn) in Daya Bay

et al. 2021

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Yellowfin seabream, Acanthopagrus latus, is one of the most important species in terms of stock enhancement in China. However, using metagenomic techniques to explore the feeding habits and stomach microbiome of yellowfin seabream is still rare. The objective of this work was to study the feeding habits and stomach microbiome of yellowfin sea bream from Daya Bay through metagenomic analysis of different weight classes (≤50, 50–100, and >100 g). Whole-metagenome shotgun sequencing and morphological observation were used to investigate the stomach contents. The dietary composition and the community composition of the stomach microbiome of A. latus were examined. In this study, 153 species were detected in the eukaryotic composition of the stomach contents of yellowfin sea bream. At the species level, Mytilus edulis was the only species identified by both metagenomic analysis and morphological observation. The proportion of fish and bivalves was over 98%, but the diet changed little with body size. Larimichthys crocea, Scophthalmus maximus, and Seriola dumerili were the most abundant species among all samples. In total, 285 species were identified in the stomach microbiome of yellowfin sea bream. Bacterium 2013Ark19i, bacterium 2013Arg42i and Acinetobacter baumannii, first reported in the stomach contents of yellowfin sea bream, were the most abundant species of the stomach microbiomes. There was no difference in the biodiversity of the stomach microbiomes among the different body sizes. Overall, the composition of the yellowfin sea bream diet mainly consists of fish and bivalves. The use of metagenomics techniques is a promising approach for assessing the feeding habits of yellowfin sea bream. The results derived from this study can provide important information for evaluating the feeding ecology of yellowfin sea bream in Daya Bay.

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Section: Composition Of the Yellowfin Sea Bream Diet In Daya Baymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Is Metagenomic Analysis an Effective Way to Analyze Fish Feeding Habits? A Case of the Yellowfin Sea Bream Acanthopagrus latus (Houttuyn) in Daya Bay

et al. 2021

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“…(2) Key species are the basic drivers of ecosystem processes and can reorganize the community structure by imposing restrictions on other species through predation or resource allocation. The general effects of protozoa, plankton and benthos on offshore ecosystems have been demonstrated and can be considered as research objects [111][112][113].…”

Section: Problems and Prospectsmentioning

confidence: 99%

Research Progress on Habitat Connectivity in Temperate Waters

S¹,

Wang²,

Z³

et al. 2021

Preprint

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Ecological connectivity, as a research method related to spatial ecology and conservation biology, has attracted increasing attention from researchers at home and abroad in recent years. Habitat connectivity, as a key link in ecological connectivity, is of great significance to promote offshore ecological restoration and protection. However, there has been less systematic research about habitat connectivity, which lacks corresponding theories and practices. Therefore, this paper discusses habitat connectivity from three aspects: (1) the concept of habitat connectivity is introduced and clarified, (2) the application of connectivity in artificial habitat and adjacent waters and its relationship with biodiversity conservation are reviewed and illustrated with examples, and (3) the future development trends of this research direction are summarized and prospected, in order to provide a scientific basis and useful reference for the related work of offshore restoration projects in China. Generally, this paper argues that an increase in human behavior irreversibly destroys the connectivity of marine habitats and threatens the temporal scales of biodiversity and ecosystem services. Therefore, the theoretical research results and practical experience of ecological connectivity should be fully applied to marine ecosystems, and the restoration of degraded ecosystems should be encouraged and supported in ways that promote natural recovery.

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“…Such perspectives should also be used to inform artificial reef design from an engineering perspective, where outcomes of novel artificial reef designs are typically assessed by traditional metrics such as species diversity and community composition (Chowdhury, Hossain, Ysebaert, & Smaal, 2020;Jayanthi et al, 2020;Liversage, 2020). Further, recent advances in marine microbial ecology provide new insights into how reef structure leads to fundamental changes at the base of the food web (Li, Wang, Yu, Bai, & Qin, 2019;Qin et al, 2019) that, in turn, may be critical for fisheries (Higgs, Newton, & Attrill, 2016). We propose that the scope for enhanced primary productivity (or other accelerated ecosystem processes) is an under-utilized benchmark that can be used to this end.…”

Section: Future D Irec Ti On Smentioning

confidence: 99%

An ecosystem ecology perspective on artificial reef production

Layman

Allgeier

2020

Journal of Applied Ecology

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1. Artificial reefs are used around the world for many purposes, including widespread deployment to increase fishery yields. These reefs are well-studied from a direct fisheries-based perspective, drawing largely on traditional theory and methodological approaches from population and community ecology. 2. Here we provide an alternative perspective using basic tenets of ecosystem ecology. We focus largely on primary production, as this ecosystem process necessarily constrains the secondary production of fish and invertebrates. 3. We use this ecosystem ecology viewpoint to examine the long-standing attraction/ production question-do artificial reefs support 'new' fish production or simply attract individuals from other habitats? Central to this discussion is identifying ecological thresholds and self-reinforcing feedbacks. For example, biological or physical processes may facilitate reaching nutrient supply thresholds where fundamental ecological dynamics are shifted, such as enhanced seagrass allocation of resources to above-ground plant structures following aggregation of fish around reefs. 4. Synthesis and applications. We propose that the scope for enhanced primary productivity (or other accelerated ecosystem processes) is an under-utilized guideline that can be used to prioritize artificial reef deployment as part of broader coastal management programmes. Such an ecosystem ecology perspective may provide new insights into the ecological role of artificial reefs and guide the optimization of their deployment and management.

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Are habitat changes driving protist community shifts? A case study in Daya Bay, China

Cited by 14 publications

References 49 publications

Is Metagenomic Analysis an Effective Way to Analyze Fish Feeding Habits? A Case of the Yellowfin Sea Bream Acanthopagrus latus (Houttuyn) in Daya Bay

Is Metagenomic Analysis an Effective Way to Analyze Fish Feeding Habits? A Case of the Yellowfin Sea Bream Acanthopagrus latus (Houttuyn) in Daya Bay

Research Progress on Habitat Connectivity in Temperate Waters

An ecosystem ecology perspective on artificial reef production

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