干旱区生态环境知识资源中心(Arid): Multiple island effects shape oceanographic processes and zooplankton size spectra off an oceanic archipelago in the Tropical Atlantic

Arid

DOI	10.1016/j.jmarsys.2023.103942
	Multiple island effects shape oceanographic processes and zooplankton size spectra off an oceanic archipelago in the Tropical Atlantic
	Lira, Simone M. A.; Schwamborn, Ralf; Melo Junior, Mauro de; Varona, Humberto L.; Queiroz, Syumara; Veleda, Doris; Silva, Alef J.; Neumann-Leitao, Sigrid; Araujo, Moacyr; Marcolin, Catarina R.
通讯作者	Lira, SMA
来源期刊	JOURNAL OF MARINE SYSTEMS
ISSN	0924-7963
EISSN	1879-1573
出版年	2024
卷号	242
英文摘要	Pelagic ecosystems around tropical oceanic islands are considered oases of high plankton biomass in the middle of oligotrophic blue deserts. To understand the dynamics of such a pelagic ecosystem, we used CTD and ADCP data and zooplankton samples taken from the waters off the remote Fernando de Noronha Archipelago (FNA), Tropical Atlantic. We analyzed how the flow and island topography interactions influence the spatial variability of chlorophyll-a fluorescence and zooplankton abundance, biovolume, and normalized biovolume size spectra (NBSS). We used a 500-mu m mesh bongo net to obtain plankton samples in July and August 2010 in areas upstream and downstream of FNA. Zooplankton samples were analyzed with a ZooScan device. Chlorophyll-a peaks and a rise in thermocline indicated a topographic uplift and turbulence downstream of the island, i.e., the Island Mass Effect. The NBSS presented a mean slope of -1.19 +/- 0.28, and a mean intercept of 3.98 +/- 0.87. There were no significant differences in NBSS slopes and intercepts between upstream and downstream areas. Nevertheless, zooplankton and decapod community structures were significantly different between areas: meroplanktonic communities showed higher abundances and biovolumes downstream (p < 0.05). Zoeae of stenopodid cleaner shrimps, anomuran and brachyuran crabs, and fish eggs were significantly more abundant downstream, indicating a Larval Island Effect. Distinct peaks in size spectra due to teleost eggs and decapod larvae, downstream of FNA, also indicated a Larval Island Effect. Upstream of the island, there was a higher abundance of gelatinous organisms, holoplanktonic decapods, and advanced stages of brachyuran crabs (Upstream Island Effect). Also, copepods, gelatinous organisms, large-sized other crustaceans (e.g., euphausiids, amphipods, stomatopod larvae, mysids, etc.), teleost eggs, and stenopodids caused abundance peaks in the size spectra upstream. Our study highlights the need for careful management and conservation of parental spawning stocks of fishes and macroinvertebrates surrounding tropical oceanic islands.
英文关键词	Island mass effect Tropical marine ecosystems Zooplankton Decapod crustacean larvae Larval Island effect Normalized biovolume size spectra
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001111009200001
WOS关键词	FERNANDO-DE-NORONHA ; OPTICAL PLANKTON COUNTER ; GREAT-BARRIER-REEF ; DECAPOD LARVAE ; ENVIRONMENTAL-CONDITIONS ; VERTICAL-DISTRIBUTION ; NORTH PACIFIC ; MILNE EDWARDS ; SURFACE-LAYER ; GRAN-CANARIA
WOS类目	Geosciences, Multidisciplinary ; Marine & Freshwater Biology ; Oceanography
WOS研究方向	Geology ; Marine & Freshwater Biology ; Oceanography
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/404643
推荐引用方式 GB/T 7714	Lira, Simone M. A.,Schwamborn, Ralf,Melo Junior, Mauro de,et al. Multiple island effects shape oceanographic processes and zooplankton size spectra off an oceanic archipelago in the Tropical Atlantic[J],2024,242.
APA	Lira, Simone M. A..,Schwamborn, Ralf.,Melo Junior, Mauro de.,Varona, Humberto L..,Queiroz, Syumara.,...&Marcolin, Catarina R..(2024).Multiple island effects shape oceanographic processes and zooplankton size spectra off an oceanic archipelago in the Tropical Atlantic.JOURNAL OF MARINE SYSTEMS,242.
MLA	Lira, Simone M. A.,et al."Multiple island effects shape oceanographic processes and zooplankton size spectra off an oceanic archipelago in the Tropical Atlantic".JOURNAL OF MARINE SYSTEMS 242(2024).