Consulta: subjectFacets:"Common dolphin"
Registros recuperados: 3
Data/hora: 11/06/2024 08:22:40

Спектр питания китообразных в Чёрном море
Provedor de dados: 13
Autores: Биркун, А. А.; Кривохижин , С. В.
Исследовано содержимое желудков у 157 выброшенных  на побережье и случайно пойманных  в рыболовные сети черноморских китообразных, включая 123 азовок (Phocoena phocoena relicta), 26 белобочек (Delphinus delphis ponticus) и 8 афалин (Tursiops truncatus ponticus) из вод Украины, Болгарии, Грузии и России. Зарегистрированы новые объекты питания для азовки – пиленгас (Liza haematocheila) и спикара (Spicara flexuosa), а также один вид для белобочки и афалины – сарган (Belone belone euxini). Показано, что в современных условиях основными пищевыми объектами  морских свиней в водах Украины являются шпрот (Sprattus sprattus phalaericus), мерланг (Merlangius merlangus euxinus) и хамса (Engraulis encrasicolus). Общий список рыб, входящих в рацион черноморских...
Tipo: Journal Contribution
Palavras-chave: Китообразные; Азовка; Белобочка; Афалина; Питание; Чёрное море; Cetaceans; Harbour porpoise; Common dolphin; Bottlenose dolphin; Feeding ecology; Black Sea.
Ano: 2009
URL: http://repository.ibss.org.ua/dspace/handle/99011/1196

Prey selection by the common dolphin: Fulfilling high energy requirements with high quality food
Provedor de dados: 5
Autores: Spitz, Jerome; Mourocq, Emeline; Leaute, Jean-pierre; Quero, Jean-claude; Ridoux, Vincent.
Which characteristics define the prey species constituting the diet of a given predator? Answering this question would help predict a predator's diet and improve our understanding of how an ecosystem functions. The aim of this study was to test if the diet of common dolphins, Delphinus delphis, in the oceanic Bay of Biscay reflected prey availability or a selection shaped by prey energy densities (ED). To do this, the community of potential prey species, described both in terms of relative abundance and energy densities, was compared to the common dolphin diet in this area. This analysis of a predator's diet and its prey field revealed that the common dolphin selected its diet on the basis of prey energy densities (significant values of Chesson's index for...
Tipo: Text
Palavras-chave: Active prey selection; Common dolphin; Prey quality; Energy density; Field of prey; Trophic cul-de-sac.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00011/12221/9086.pdf

Application of Leslie's model on a population of common dolphins (Delphinus delphis): Sensitivity study
Provedor de dados: 5
Autores: Fifas, Spyros; Goujon, Michel; Antoine, Loic.
The rapid development of the albacore tuna (Thunnus alalunga) driftnet fishery in the Pay of Biscay (Atlantic ocean, France) has incited European management authorities to ask for a study of its ecological impact on populations of common dolphins and striped dolphins. A programme with onboard observers has been led during 1992 and 1993, and a sighting survey has allowed the evaluation of the abundances of fractions of populations in the studied area. For the population of common dolphins, the biological parameter estimation has allowed the building of a discrete age-structured model based on a Leslie matrix. Sensitivity studies have been conducted using four model parameters (age of first reproduction, interval between births, juvenile and adult survival...
Tipo: Text
Palavras-chave: Survival rate; Driftnet fishery; Common dolphin; Linear model; Taux de survie; Pêche au filet maillant dérivant; Modèle linéaire; Modèle linéaire.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/1998/publication-865.pdf