Ecological studies of colonized invertebrate communities on cultivated seaweeds in a typical mariculture zone, China

IF 1.5 4区生物学 Q3 MARINE & FRESHWATER BIOLOGY

Marine Ecology-An Evolutionary Perspective Pub Date : 2021-10-21 DOI:10.1111/maec.12681

Qing Wang, Hui Ren, Yufeng Yang

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引用次数: 0

Abstract

The invertebrate communities on floating cultivated seaweeds were studied by both field surveys and experiments in order to analyze community structure in a typical mariculture zone, Nanao, South China. Samples of invertebrates were collected from the water and the thalli of the seaweeds, Gracilaria lemaneiformis and G. chouae. The results showed that both species were rapidly colonized by invertebrates after being introduced into the mariculture region. The communities on the seaweeds were significantly different from those in the ambient waters. Invertebrate abundance was much higher in the seaweed than in the water. The high proportion of larvae indicates that these species are using the seaweed thalli as a platform for reproduction. Therefore, large-scale seaweed cultivation is beneficial for colonization of invertebrates and shelters higher numbers of copepod larvae than in the sea. This drives ecological changes in the invertebrate communities in coastal ecosystems and facilitates interactions with other communities and higher trophic levels in the cultivated seaweed food web. We propose a conceptual model that summarizes the results from this study and guides future studies on the relationships between seaweed and the invertebrate community.

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中国典型海水养殖区海藻上定殖无脊椎动物群落的生态学研究

采用野外调查和实验相结合的方法，对南澳典型海水养殖区浮游养殖海藻上的无脊椎动物群落结构进行了研究。从水中和海草、葛尾草和G. chouae的菌体中采集无脊椎动物样本。结果表明，这两个物种在引入海水养殖区后，都迅速被无脊椎动物定殖。海藻上的群落与周围水域有显著差异。无脊椎动物的丰度在海藻中比在水中高得多。高比例的幼虫表明这些物种正在利用海藻菌体作为繁殖的平台。因此，大规模的海藻养殖有利于无脊椎动物的定植，并比在海洋中庇护更多的桡足类幼虫。这推动了沿海生态系统中无脊椎动物群落的生态变化，并促进了与其他群落和养殖海藻食物网中更高营养水平的相互作用。我们提出了一个概念模型，总结了本研究的结果，并指导了未来海藻与无脊椎动物群落之间关系的研究。

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来源期刊

Marine Ecology-An Evolutionary Perspective 生物-海洋与淡水生物学

CiteScore

2.70

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Marine Ecology publishes original contributions on the structure and dynamics of marine benthic and pelagic ecosystems, communities and populations, and on the critical links between ecology and the evolution of marine organisms. The journal prioritizes contributions elucidating fundamental aspects of species interaction and adaptation to the environment through integration of information from various organizational levels (molecules to ecosystems) and different disciplines (molecular biology, genetics, biochemistry, physiology, marine biology, natural history, geography, oceanography, palaeontology and modelling) as viewed from an ecological perspective. The journal also focuses on population genetic processes, evolution of life histories, morphological traits and behaviour, historical ecology and biogeography, macro-ecology and seascape ecology, palaeo-ecological reconstruction, and ecological changes due to introduction of new biota, human pressure or environmental change. Most applied marine science, including fisheries biology, aquaculture, natural-products chemistry, toxicology, and local pollution studies lie outside the scope of the journal. Papers should address ecological questions that would be of interest to a worldwide readership of ecologists; papers of mostly local interest, including descriptions of flora and fauna, taxonomic descriptions, and range extensions will not be considered.