期刊
MARINE ENVIRONMENTAL RESEARCH
卷 141, 期 -, 页码 88-99出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.marenvres.2018.08.002
关键词
Biogenic habitat; Glass sponge reef; Nutrient dynamics; Biodiversity; Salish Sea; Seabed terrain; Human impacts; Carbon cycling
资金
- DFO Strategic Program for Ecosystem-Based Research and Advice (SPERA)
- DFO National Conservation Plan
- NSERC Visiting Fellowship in Canadian Government Laboratories
Biogenic habitats play important roles in shallow-water ecosystems, but their roles in deeper waters are less well-studied. We quantitatively assessed 19 glass sponge reefs in the Salish Sea for live reef-building sponge cover and biodiversity, explored potential drivers behind variation observed among reefs, and quantified individual and collective roles the reefs play in filtration and carbon removal. The reefs support diverse and abundant communities of invertebrates and fish, with 115 unique taxonomic groups observed. Sponge cover varied widely between reefs: percent live reef-building sponge cover ranged from 0.2 to 17.5% and proportion of live reef habitat category ranged from 0.2 to 92%. These differences were predominantly driven by the seabed terrain characteristics such as seafloor rugosity, curvature, and depth; human pressure measures explored in this study - density of anthropogenic objects and fishing footprint over the past 17 years - did not mask the natural influence of seabed terrain. The difference in sponge cover between the reefs led to wide variation in ecosystem function with individual reefs processing between 465 and 47,300 L/m(2) per day. Collectively, each day the 19 reefs filter 1.04 x 10(11) L of water which corresponds to 1% of the total water volume in Strait of Georgia and Howe Sound combined. The reefs remove up to 1 g of carbon per m(2) per day, comparable to carbon sequestration rates reported for terrestrial old growth forests and to blue carbon sequestration rates by marine vegetation. Implications for sponge reef conservation and monitoring are discussed.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
Article
Environmental Sciences
Plankton assemblages from microplastics of tropical coastal environments reveal high diversity and evidence of toxic species
Emily Curren, Sandric Chee Yew Leong
Summary: Microplastics in marine ecosystems serve as microhabitats for diverse toxic plankton species, including viable resting cysts of dinoflagellates. The diversity of plankton communities on the plastisphere is influenced by anthropogenic factors. This study highlights the importance of plastics as vectors for the transport of harmful opportunistic species in the marine environment.
MARINE ENVIRONMENTAL RESEARCH (2024)
Article
Environmental Sciences
Marine copepod assemblages in the Arctic: The effect of frontal zones on biomass and productivity
Vladimir G. Dvoretsky, Alexander G. Dvoretsky
Summary: The Barents Sea, as the largest Arctic shelf region, plays a vital role in supporting commercial fisheries. The ecosystem of this region is significantly influenced by both warm Atlantic Water (AW) and cold Arctic Water (ARW), resulting in distinct frontal zones. This study found that copepod populations, particularly herbivorous copepods, were most abundant and productive in the Polar Front, as well as in the eastern frontal zones. The geographic positions of sampling stations, depth, and chlorophyll a concentration were identified as the main factors influencing copepod biomass and production.
MARINE ENVIRONMENTAL RESEARCH (2024)
Article
Environmental Sciences
Reduced small-scale structural complexity on sponge-dominated areas of Indo-Pacific coral reefs
Alberto Rovellini, Charlotte L. Mortimer, Matthew R. Dunn, Elizabeth A. Fulton, Jamaluddin Jompa, Abdul Haris, James J. Bell
Summary: This study compared the structural complexity of coral- and sponge-dominated areas of an Indonesian coral reef using 3D photogrammetry. The results showed that smaller-scale refugia were reduced in sponge-dominated reefs, potentially impacting smaller reef fauna.
MARINE ENVIRONMENTAL RESEARCH (2024)