Open AccessDOI
Effects of habitat quality on secondary production in shallow estuarine waters and the consequences for the benthic-pelagic food web
TLDR
In this article, the authors discuss the impact of habitat degradation on second-person production in the Saline Estuary and the Tidal Freshwater watershed in the state of Illinois.Abstract:
................................................................................................................... ix CHAPTER I. ASSESSMENT OF HABITAT DEGRADATION IN THE COASTAL ZONE AND THE CONSEQUENCES FOR RESIDENT BlOT A .................................. .2 Introduction .............................................................................................................. 3 Motivations and Investigative Approach ............................................................... 12 Literature Cited ...................................................................................................... 15 CHAPTER II. THE INFLUENCE OF HABIT AT QUALITY ON SECONDARY PRODUCTION IN SHALLOW ESTUARINE WATERS ............................................ 28 Abstract .................................................................................................................. 29 Introduction ............................................................................................................ 30 Materials and Methods ........................................................................................... 33 Site Selection ................................................................................................... 33 Data Collection ..................................................................... , .......................... 34 Analysis ............................................................................................................ 37 Results .................................................................................................................... 39 Discussion .............................................................................................................. 41 Interpreting the Saline Estuary ........................................................................ .42 Interpreting the Tidal Freshwater .................................................................... .46 Some Comments on Biodiversity and Productivity ........................................ .47 Conclusions ............................................................................................................ 49 Literature Cited ...................................................................................................... 50 CHAPTER Ill. THE INFLUENCE OF HABIT AT QUALITY AND MACROBENTHIC COMMUNITY COMPOSITION ON NEKTON UTILIZATION OF SECONDARY PRODUCTION AS A FOOD SOURCE ........................................................................ 68 Abstract .................................................................................................................. 69 Introduction ............................................................................................................ 70 Materials and Methods ........................................................................................... 74 Site Selection ................................................................................................... 7 4 Data Collection ................................................................................................ 74 Analysis ............................................................................................................ 77 Results .................................................................................................................... 80 Site Characterization ........................................................................................ 80read more
Citations
More filters
Journal Article
The role of standing dead Spartina alterniflora and benthic microalgae in salt marsh food webs: considerations based on multiple stable isotope analysis
TL;DR: In this article, the stable isotope compositions (C, N, and S) of hve, senescent, and standing dead Spartina alterniflora were compared in order to determine the effects of aerial decomposition on the isotopic signature of aboveground S. alternjflora entering the food chain, which indicated that N2fixing microorganisms associdated with microalgal communities were an important source of N to salt marsh consumers.
Journal ArticleDOI
Links between epibenthic community patterns and habitat characteristics in the Parila lagoon (Croatia)
Ivana Prusina,Tatjana Dobroslavić,Luka Glamuzina,Alexis Conides,Danijela Bogner,Slavica Matijević,Branko Glamuzina +6 more
TL;DR: The ecological analysis showed that total phosphorus concentration, temperature and salinity were the main environmental parameters affecting community structure of the Parila lagoon, and six species listed as frequent have a potential to be used as indicators of habitat quality.
References
More filters
Journal ArticleDOI
Plankton and Dissolved Inorganic Carbon Isotopic Composition in a River-Dominated Estuary: Apalachicola Bay, Florida
TL;DR: In this article, the isotopic composition of organisms at the base of the food web and the controls on their variability were measured during periods of high and low river flow in Apalachicola Bay, Florida, United States, over 3 yr.
Journal ArticleDOI
Estimating the trophic position of aquatic consumers in river food webs using stable nitrogen isotopes
Caroline Anderson,Gilbert Cabana +1 more
TL;DR: In this paper, the authors examined within-site differences in δ15N among primary consumers belonging to different functional and taxonomic groups and found significant differences in ǫ-15N. Collectors were significantly enriched compared to other primary consumers.
Journal ArticleDOI
Factors controlling bacterial production in marine and freshwater sediments.
Bettina C. Sander,Jacob Kalff +1 more
TL;DR: Benthic bacterial production and specific growth rates are most closely linked to substrate supply and temperature in marine and freshwater sediments, and temperature was the most powerful predictor of the observed variability in specific growth rate.
Journal ArticleDOI
Ecological consequences of environmental perturbations associated with offshore hydrocarbon production: A perspective on long-term exposures in the Gulf of Mexico
Charles H. Peterson,Mahlon C. Kennicutt,Roger H. Green,Paul A. Montagna,Donald E. Harper,Eric N. Powell,Pasquale F. Roscigno +6 more
TL;DR: In this paper, a synthese des articles portant sur la reponse du benthos a la pollution des mers parait indiquer that les communautes constituees de l'endofaune macroscopique and de la meiofaune ont des profils repetables de reponse a the contamination des sediments which sont generalement observables a des niveaux taxonomiques eleves (meme a celui du phylum).
Journal ArticleDOI
Separation of algae from detritus for stable isotope or ecological stoichiometry studies using density fractionation in colloidal silica
TL;DR: An economical method to partition fine particulate matter into predominantly algal and detrital components by centrifugation in colloidal silica is described, demonstrating the need to perform such separations in many aquatic environments.