+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Determining the trophic guilds of fishes and macroinvertebrates in a seagrass food web

, : Determining the trophic guilds of fishes and macroinvertebrates in a seagrass food web. Estuaries ember; 25(6A): 1143-1163

We established trophic guilds of macroinvertebrate and fish taxa using correspondence analysis and a hierarchical clustering strategy for a seagrass food web in winter in the northeastern Gulf of Mexico. To create the diet matrix, we characterized the trophic linkages of macroinvertebrate and fish taxa present in Halodule wrightii seagrass habitat areas within the St. Marks National Wildlife Refuge (Florida) using binary data, combining dietary links obtained from relevant literature for macroinvertebrates with stomach analysis of common fishes collected during January and February of 1994. Heirarchical average-linkage cluster analysis of the 73 taxa of fishes and macroinvertebrates in the diet matrix yielded 14 clusters with diet similarity >= 0.60. We then used correspondence analysis with three factors to jointly plot the coordinates of the consumers (identified by cluster membership) and of the 33 food sources. Correspondence analysis served as a visualization tool for assigning each taxon to one of eight trophic guilds: herbivores, detritivores, suspension feeders, omnivores, molluscivores, meiobenthos consumers, macrobenthos consumers, and piscivores. These trophic groups, cross-classified with major taxonomic groups, were further used to develop consumer compartments in a network analysis model of carbon flow in this seagrass ecosystem. The method presented here should greatly improve the development of future network models of food webs by providing an objective procedure for aggregating trophic groups.


DOI: 10.1007/bf02692212

Other references

Petruseviciene, D.; Krisciūnas, A., 2005: Influence of factors on occupational therapy efficiency for patients after stroke. About 80% of patients become disabled after stroke due to cognitive, motor dysfunctions leading to unsatisfactory daily activity and efficiency. The aims of the research were to evaluate the level of biosocial dysfunctions of patients with stroke...

Chudnovsky, A.; Ben-Dor, E., 2008: Application of visible, near-infrared, and short-wave infrared (400-2500 nm) reflectance spectroscopy in quantitatively assessing settled dust in the indoor environment. Case study in dwellings and office environments. The aim of this study was to apply a novel sensitive technique, involving reflectance spectroscopy in the 400-2500-nm region, to assess dust loads. A spectral library was created to enable identification of the possible sources of settled dust in...

Villot, A., 1876: Sur l'appareil vaaculaire des Trematodes. Compte Rendu, lxxxi 1344-1346

Remaudiere, G., 1982: New and little known aphids from mexico 3. the genus mexicallis new genus homoptera aphididae. The genus MEXICALLIS, gen. nov. lives on Quercus. It is characterized by its small size and the persistence of larval characters by apterous viviparous females (the only known form): antenna consisting of 4 or 5 segments, 1st tarsal joint with 2 o...

Bartsch, T.; Goadsby, P.J., 2003: The trigeminocervical complex and migraine: current concepts and synthesis. Neurones in the trigeminocervical complex are the major relay neurones for nociceptive afferent input from the meninges and cervical structures; therefore, they are the neural substrates of head pain. This review highlights the importance of two b...

Walsh William J., 1990: Making science, policy, and public perception compatible; a legal/ policy summary. Pages 206-249 1990

Harkness, A.H.; Henderson, B.Gg.A., 1948: The significance of pleuropneumonia-like or L organisms in non-gonococcal urethritis, Reiter's disease, and abacterial pyuria. British Journal of Venereal Diseases 24(2): 50-58

Pumprla, J.; Howorka, K.; Schabmann, A.; Heger, G.; Thoma, H.; Salinger, J.; Opavsky, J., 1995: Discrimination of different degrees of cardiac autonomic neuropathy in diabetes mellitus by spectral analysis of heart rate variability. European Heart Journal 16(ABSTR SUPPL ): 132

Dann, O.; Steuding, W.; Lisson, K.G.; Seidel, H.R.; Fink, E.; Nickel, P., 1982: Antimalarial 6-aminoquinolines XV. 6- and 4-aminoquinolines with a tertiary basic alkylated amino group. Antimalarial 6-aminoquinolines (1a-c) were acylated (3a-c, 5a) and alkylated (4a-c, 6a) at the secondary aromatic 6-amino group with the aim of studying the influence of a tertiary aromatic 6-amino group on antimalarial activity and toxicity. 4 de...

McWilliams, W.; Hamilton, C.J.; Muncer, S.J., 1997: On mental rotation in three dimensions. Real three-dimensional models and three-dimensional images were used in a test of mental rotation. Although the 33 men performed better than the 33 women when presented three-dimensional images (14.4 and 11.2), this sex difference disappeared when...