Results 51 to 60 of about 262,375 (207)

Fatty Acids as a Tool to Understand Microbial Diversity and Their Role in Food Webs of Mediterranean Temporary Ponds

Molecules, 2014
Temporary Mediterranean ponds are complex ecosystems which support a high diversity of organisms that include heterotrophic microorganisms, algae, crustaceans, amphibians and higher plants, and have the potential to supply food and a resting place to ...
Carla C. C. R. de Carvalho, Maria-José Caramujo   +1 more
doaj   +1 more source

Isotopic niche differs between seal and fish‐eating killer whales (Orcinus orca) in northern Norway

Ecology and Evolution, 2020
Ecological diversity has been reported for killer whales (Orcinus orca) throughout the North Atlantic but patterns of prey specialization have remained poorly understood.
Eve Jourdain, Clare Andvik, Richard Karoliussen, Anders Ruus, Dag Vongraven, Katrine Borgå   +5 more
doaj   +1 more source

Long-Term Variations of Biogenic Elements and Nutritional Status in Daya Bay, Northern South China Sea

Journal of Marine Science and Engineering, 2023
This study explored the variations in the characteristics of the trophic structure of Daya Bay island waters over the last four decades based on the survey findings and research data on biogenic elements (dissolved inorganic nitrogen (DIN), NO2−, NO3 ...
Zhicheng Guo, Yayuan Xiao, Yong Liu, Peng Wu, Chunhou Li   +4 more
doaj   +1 more source

Trophic signatures of marine organisms in the Mediterranean as compared with other ecosystems [PDF]

, 2004
We compared several large marine ecosystems in terms of species numbers of fishes, sea birds, marine mammals, and cephalopods. We examined how these numbers were distributed by trophic level, from herbivores to top predators.
Froese, Rainer, Garthe, Stefan, Pauly, Daniel, Piatkowski, Uwe   +3 more
core  

Biodiversity in model ecosystems, II: Species assembly and food web structure

, 2005
This is the second of two papers dedicated to the relationship between population models of competition and biodiversity. Here we consider species assembly models where the population dynamics is kept far from fixed points through the continuous ...
Bastolla, Ugo, Lässig, Michael, Manrubia, Susanna C., Valleriani, Angelo   +3 more
core   +1 more source

Diet Composition and Trophic Level of Greater Forkbeard Phycis blennoides (Gadiform: Phycidae) from the Algerian Coast

Croatian Journal of Fisheries, 2018
The diet of the greater forkbeard Phycis blennoides (Brünnich, 1768) of the Algerian coast was studied between December 2013 and June 2015, providing information on its ecology for a better understanding of the feeding strategy.
Alioua Zakia, Amira Soumia, Derbal Farid, Rachedi Mounira, Bahbah Lamia, Bensari Billel, Zerouali-Khodja Fatiha   +6 more
doaj   +1 more source

Trophic Partitioning among Three Mesopredatory Shark Species Inhabiting the Northwestern Adriatic Sea

Diversity, 2023
While the general diet of Mediterranean elasmobranchs has been widely studied, little is known about food partitioning and competition among sympatric species, despite these being important forces structuring marine communities. Using stomach content and
Licia Finotto, Daniela Berto, Federico Rampazzo, Saša Raicevich, Sara Bonanomi, Carlotta Mazzoldi   +5 more
doaj   +1 more source

Predicting plankton net community production in the Atlantic Ocean [PDF]

, 2009
We present, test and implement two contrasting models to predict euphotic zone net community production (NCP), which are based on 14C primary production (PO14CP) to NCP relationships over two latitudinal (ca.
Agustí, Anderson, Arístegui, Bender, Berges, Bisset, Blight, Boyd, Burke, Carol Robinson, Cota, Cyr, del Giorgio, del Giorgio, Doney, Duarte, Duarte, Duarte, Emerson, Emerson, Emilio Fernández, Eva Teira, Fasham, Fogg, Gavin Tilstone, González, Gruber, Hairston, Hairston, Hansell, Hansell, Hansell, Hanson, Harris, Jansson, Karl, Karl, Kiddon, Kiørboe, Laws, Legendre, Longhurst, Longhurst, Ludwig, Margalef, McGrady-Steed, McNaughton, Michaels, Najjar, Ono, Pablo Serret, Pace, Peters, Polis, Polis, Pomeroy, Pérez, Quay, Rivkin, Robinson, Robinson, Robinson, Scavia, Schindler, Serret, Serret, Serret, Serret, Serret, Smith, Sokal, Steinberg, Stephens, Strayer, Tamigneaux, Teira, Teira, Teira, Tremblay, Valesca Pérez, Vézina, Wiens, Williams, Williams, Williams, Yamanaka   +85 more
core   +1 more source

Mercury bioaccumulation in the Mediterranean

E3S Web of Conferences, 2013
This study details mercury pollution within the food chain of the Mediterranean by analysing the most comprehensive mercury dataset available for biota and water measurements.
Cinnirella S., Pirrone N., Horvat M., Kocman D., Kotnik J.   +4 more
doaj   +1 more source

Ontogenetic Variation in the Trophic and Mercury Levels of Japanese Anchovy in the High Seas of the Northwestern Pacific Ocean

Journal of Marine Science and Engineering
The aim of this study was to explore the connection between growth and feeding ecology and mercury (Hg) levels in Japanese anchovy (Engraulis japonicus).
Long Chen, Guanyu Hu, Zhenfang Zhao, Bilin Liu, Xinjun Chen, Yingcong Chen   +5 more
doaj   +1 more source