fish trophic levelsestuarine ecosystemThe concept of trophic level is particularly relevant in order to improve knowledge of the structure and the functioning of an ecosystem. A precise estimation of fish trophic levels based on nitrogen isotopic signatures in environments as complex and fluctuant as ...
1.The trophic functional groups and trophic levels of the macrobenthic community at the east tidal flat of Lingkun Island;灵昆岛东滩潮间带大型底栖动物功能群及营养等级构成 2)order of the nutrient supply营养等级序列 3)mesotrophy[me's?tr?fi]中等营养 4)trophic cascade营养级联 5)trophic level营养...
order of temporal distribution of abundance and biomass summerautumnspring.The abundance of sampling stations were from 42.12×104 ind·L-1 to 178.53×104 ind·L-1 in spring,at 98.04×104~396.57×104 ind·L-1 in summer,and at 58.45×104~323.93×104 ind·L-1 in autumn,biomass in spring ...
Equilibrium predictions were tested in experiments that were too short to reach steady state and in several studies ambiguous definitions and measurements of model variables were found such as productivity, biomass and the number trophic levels. It is concluded that a major obstacle when performing ...
trophic levels. In contrast, C-N bonds are not created or broken during the metabolic processing of a few amino acids that are only biosynthesized by autotrophs (called “source” amino acids), which means that they confer little shift inδ15N values across trophic levels20,23and thus ...
Trophic levels of organisms are defined by diet [26,27,28,29,30,31], which in turn is known to influence the faunal microbiome [32,33,34,35]. Consequently, the complexity and identity of the microbiome of soil invertebrates could be strongly influenced by their hierarchical position within ...
WATER levelsFISH populationsSTABLE isotope analysisFISH communitiesFORAGE fishesECOSYSTEM dynamicsECOLOGICAL disturbancesFOOD chainsECOSYSTEMSSimple Summary: Seasonal fluctuations in the water level have the potential to alter the nutrient composition of the aquatic ecosystem and disrupt the...
(3) similarity of diets, assessed by beta-diversity between anchovy and sardine in the three areas39,40; and (4) trophic niche and diet overlap, assessed by Pianka’s41niche overlap and by isotopic SEABoverlap. In order to ease the interpretation of results, juvenile vs adult comparison ...
Trophic interactions, system indicators and food web attributes are calculated using network analysis routines included in EwE. Results indicate that trophic groups are aligned around four trophic levels (TL) with phytoplankton and detritus at the TL=1, while large-sized pelagic fish and cetaceans ...
Our results revealed important findings on ontogenetic effects of signal crayfish. The combined pressures exerted by both adults and juveniles can affect the stream ecosystem at several trophic levels and threaten native macroinvertebrate communities and ecological function of the study stream. Actions are...