References of "Dauby, Patrick"
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See detailTrophic type diversity within eastern Weddell Sea amphipod community
Dauby, Patrick ULg; Scailteur, Yves; De Broyer, Claude

Conference (2000, April)

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See detailpCO2 - del13CPOC relationships in srface waters of the Gulf of Biscay.
Dauby, Patrick ULg; Frankignoulle, Michel

Poster (2000, February)

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See detailTuna and dolphin associations in the Northeast Atlantic: Evidence of different ecological niches from stable isotope and heavy metal measurements
Das, Krishna ULg; Lepoint, Gilles ULg; Loizeau, Véronique et al

in Marine Pollution Bulletin (2000), 40

Associations of tunas and dolphins in the wild are quite frequent events and the question arises how predators requiring similar diet in the same habitat share their environmental resources. As isotopic ... [more ▼]

Associations of tunas and dolphins in the wild are quite frequent events and the question arises how predators requiring similar diet in the same habitat share their environmental resources. As isotopic composition of an animal is related to that of its preys, stable isotopes (13C/12C and 15N/14N) analyses were performed in three predator species from the Northeast Atlantic: the striped dolphin, Stenella coeruleoalba, the common dolphin Delphinus delphis, and the albacore tuna, Thunnus alalunga, and compared to their previously described stomach content. Heavy metals (Cd, Zn, Cu and Fe) are mainly transferred through the diet and so, have been determined in the tissues of the animals. Tunas muscles display higher delta15N than in common and striped dolphins (mean: 11.4 0/00 vs. 10.3 0/00 and 10.4 0/00, respectively) which reflects its higher trophic level nutrition. Higher delta13C are found in common (-18.4 0/00) and striped dolphin (-18.10/00) muscles than in albacore tuna (-19.3 0/00) likely in relation with its migratory pattern. The most striking feature is the presence of two levels of cadmium concentrations in the livers of the tunas (32 mg kg-1 dry weight vs. 5 mg kg-1 dry weight). These two groups also differ by their iron concentrations and their delta15N and delta 13C liver values. These results suggest that in the Biscay Bay, tunas occupy two different ecological niches likely based on different squid input in their diet. [less ▲]

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See detail"Ant'Phipoda", the reference centre for Antarctic crustaceans: A tool for developing and managing Antarctic marine biodiversity information
De Broyer, Claude; Duchesne, Paul-André; Vander Linden, Charles et al

in Polish Archives for Hydrobiology (2000), 47

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See detailUse of stable isotope to delineate amphipod trophic status in Antarctic food webs
Nyssen, Fabienne ULg; Brey, Tom; Lepoint, Gilles ULg et al

in Polish Archives for Hydrobiology (2000), 47

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See detailAmphipods of a stony beach in the maritime Antarctic
Jazdzewski, Krzystov; De Broyer, Claude; Pudlarz, M. et al

in Polish Archives for Hydrobiology (2000), 47

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See detailRelative impact of a seagrass bed and its adjacent epilithic algal community in consumer diets
Lepoint, Gilles ULg; Nyssen, Fabienne ULg; Gobert, Sylvie ULg et al

in Marine Biology (2000), 136

The aim of this work was to identify and compare, using nitrogen and carbon stable isotope data, the food sources supporting consumer communities in a Mediterranean seagrass bed (Gulf of Calvi, Corsica ... [more ▼]

The aim of this work was to identify and compare, using nitrogen and carbon stable isotope data, the food sources supporting consumer communities in a Mediterranean seagrass bed (Gulf of Calvi, Corsica) with those in an adjacent epilithic algal dominated community. Isotopic data for consumers are not significantly different in the two communities. Particulate matter and algal material (seagrass epiflora and dominant epilithic macroalgae) appear to be the main food sources in both communities. Generally, the 13C of animals suggests that the seagrass Posidonia oceanica (L.) Delile represents only a minor component of their diet or of the diet of their prey, but the occurrence of a mixed diet is not excluded. P.oceanica dominates the diet of only of few species, among which holothurians appear as key components in the cycling of seagrass material. [less ▲]

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See detailEcofunctional biodiversity of benthic crustacean taxocoenoses in the Southern Ocean (Belgian Scientific Programme on the Antarctic, Phase IV)
De Broyer, Claude; Scailteur, Yves; Van Roozendael, Francoise et al

Report (1999)

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See detailAmphipods of a stony beach in the maritime Antarctic
Munn, R.; De Broyer, Claude; Sicinski, Jacek et al

in Polish Polar Studies (1999)

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See detailStable isotope characteristics of some infra-littoral benthic food-webs of Papuasian eastern coasts
Dauby, Patrick ULg; Nyssen, Fabienne; Lepoint, Gilles ULg et al

Poster (1998, December)

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See detailOptimum Complexity of Marine Ecosystem Models
Dauby, Patrick ULg; Nihoul, Jacques

Conference (1998, November)

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See detailTrophic relationships within intertidal communities of the Brittany coast: a stable carbon isotope analysis
Dauby, Patrick ULg; Khomsi, Ahmid; Bouquegneau, Jean-Marie ULg

in Journal of Coastal Research (1998), 14

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See detailOceanological applications of stable isotope ratios
Dauby, Patrick ULg

Scientific conference (1997, November)

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