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- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 Concept "species" assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 Concept "sighting" assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 Concept "density" assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 Concept "aerial survey" assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 Concept "bluefin" assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 Concept "dolphin" assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 Concept "feeding" assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 Concept "razorback" assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 Concept "tuna" assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 FieldOfResearch "environmental sciences" assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 IPTC "Animal" assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 IPTC "Marine science" assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 IPTC "Endangered species" assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 IPTC "Golf" assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 Lemma "species" assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 Lemma "density" assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 Lemma "aerial survey" assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 Lemma "bluefin tuna" assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 Lemma "dolphin" assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 Lemma "fin whale" assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 Lemma "tuna" assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 NASA "life sciences" assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 Phrase "availability bias of fin whales" assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 Phrase "feeding preference" assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 Phrase "investigated species" assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 Phrase "multi-species association" assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 Phrase "striped dolphin" assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 Phrase "tuna species" assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 Sentence "Different dolphin and tuna species have frequently been reported to aggregate in areas of high frontal activity, sometimes developing close multi-species associations to increase feeding success." assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 Sentence "Direct interactions of the species appeared to be the exception, but results indicate that densities, presence and core sighting locations of striped dolphins and ABFT were correlated." assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 Sentence "ABFT was by far the most abundant species during the surveys in terms of schools and individuals, followed by striped dolphins and fin whales." assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 TimeReference "from 8 years" assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 generatedAtTime "2015-10-01" assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 description "Different dolphin and tuna species have frequently been reported to aggregate in areas of high frontal activity, sometimes developing close multi-species associations to increase feeding success. Aerial surveys are a common tool to monitor the density and abundance of marine mammals, and have recently become a focus in the search for methods to provide fisheries-independent abundance indicators for tuna stock assessment. In this study, we present first density estimates corrected for availability bias of fin whales (Balaenoptera physalus) and striped dolphins (Stenella coeruleoalba) from the Golf of Lions (GoL), compared with uncorrected estimates of Atlantic bluefin tuna (ABFT; Thunnus thynnus) densities from 8 years of line transect aerial surveys. The raw sighting data were further used to analyze patterns of spatial co-occurrence and density of these three top marine predators in this important feeding ground in the Northwestern Mediterranean Sea. These patterns were investigated regarding known species-specific feeding preferences and environmental characteristics (i. e. mesoscale activity) of the survey zone. ABFT was by far the most abundant species during the surveys in terms of schools and individuals, followed by striped dolphins and fin whales. However, when accounted for availability bias, schools of dolphins and fin whales were of equal density. Direct interactions of the species appeared to be the exception, but results indicate that densities, presence and core sighting locations of striped dolphins and ABFT were correlated. Core sighting areas of these species were located close to an area of high mesoscale activity (oceanic fronts and eddies). Fin whales did not show such a correlation. The results further highlight the feasibility to coordinate research efforts to explore the behaviour and abundance of the investigated species, as demanded by the Marine Strategy Framework Directive (MSFD)." assertion.
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- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 dateCreated "2018-06-20 11:20:17.148000+00:00" assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 Domain "biology" assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 Domain "sociology" assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 Domain "zoology" assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 Domain "marine biology" assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 Domain "ichthyology" assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 cite-as "CNR-ISMAR, and Generation Service. "Co-Occurrence and Habitat Use of Fin Whales, Striped Dolphins and Atlantic Bluefin Tuna in the Northwestern Mediterranean Sea." ROHub. Jun 20 ,2018. https://w3id.org/ro-id/a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3." assertion.
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- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 about 632 assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 name "Co-Occurrence and Habitat Use of Fin Whales, Striped Dolphins and Atlantic Bluefin Tuna in the Northwestern Mediterranean Sea" assertion.
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- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 dateModified "2025-03-05 00:47:04.834187+00:00" assertion.
- a1e0aa7b-8d10-4cfc-96bb-6fbbaa1913a3 datePublished "2018-06-20 11:20:17.148000+00:00" assertion.
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