Benthic Marine Communities
Benthic Marine Communities - Related Videos
13:51
Analyzing Gene Expression from Marine Microbial Communities using Environmental Transcriptomics
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Cited by 60 •
2009
We present a method for generating cDNA from environmental mRNA. In general, total RNA is first collected from the environment, rRNA is selectively removed, mRNA is selectively amplified, and cDNA synthesized from the enriched mRNA pool is sequenced. Recovered sequences can be annotated using standard bioinformatics techniques to identify the expressed genes.
16:03
A Fish-feeding Laboratory Bioassay to Assess the Antipredatory Activity of Secondary Metabolites from the Tissues of Marine Organisms
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Cited by 6 •
2015
This bioassay employs a model predatory fish to assess the presence of feeding-deterrent metabolites from organic extracts of the tissues of marine organisms at natural concentrations using a nutritionally comparable food matrix.
05:49
Community Diversity - Concepts
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2019
Populations do not live in isolation; thus, every population interacts with others in certain ways. These interactions give rise to a network of populations. Hence, an ecological community is composed of such population networks of various species interacting with each other within the same area. These biological, or biotic, components may also closely interact with non-living, or abiotic, components, forming an ecosystem. Ecosystems may be as small as the microbial communities inside the human...
10:11
The Benthic Exchange of O2, N2 and Dissolved Nutrients Using Small Core Incubations
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Cited by 13 •
2016
Here, we present small core incubations for the measurement of sediment-water gas and solute exchange. These will provide reliable measurements of sediment-water exchange that assess the role of sediment in influencing biological and biogeochemical processes in aquatic ecosystems.
21:02
Investigating the Microbial Community in the Termite Hindgut - Interview
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2007
Jared Leadbetter explains why the termite-gut microbial community is an excellent system for studying the complex interactions between microbes. The symbiotic relationship existing between the host insect and lignocellulose-degrading gut microbes is explained, as well as the industrial uses of these microbes for degrading plant biomass and generating biofuels.
FAQs
Variation in depth, light, temperature, oxygen, sediment type, and food supply changes the conditions organisms experience on the seafloor. These factors influence which organisms can persist and how community functions emerge. Consequently, two nearby habitats may differ in composition or ecological activity when their physical or resource conditions differ.
Competition, predation, and facilitation help determine community structure after environmental conditions set the available opportunities. Competition can limit coexistence, predation can alter abundance, and facilitation can enable organisms to persist under particular conditions. Considering these interactions prevents researchers from attributing every difference among sites solely to depth or sediment characteristics.
Benthic communities contribute to nutrient cycling, so changes in composition can affect ecosystem function, not only species counts. Linking biodiversity with recycling processes helps environmental researchers judge whether a disturbed seafloor has altered ecological performance and consider implications for food webs and habitat management.
A useful assessment should consider depth, light, temperature, oxygen, sediment type, and food supply together rather than treating one measurement as a complete explanation. Comparing those conditions with community composition and function can reveal whether observed biological patterns are associated with natural habitat differences or environmental stress.
Benthic marine communities are useful indicators because their composition and function reflect environmental conditions. Researchers can compare communities across locations or through environmental change to investigate pollution and habitat disturbance. The resulting evidence supports ecosystem-health monitoring and can help identify where management attention is needed, without relying on a single environmental measurement.
Climate change may modify the depth-related, physical, and resource conditions that shape seafloor communities. Tracking resulting changes in biodiversity and nutrient cycling can help researchers evaluate ecological consequences over time. The same information contributes to fisheries and conservation planning, because altered community structure may signal changing habitat conditions and food-web support.