Results 51 to 60 of about 543 (150)
The absolute and relative volume of major sensory and integrative brain regions of the southern bluefin tuna Thunnus maccoyii are examined using magnetic resonance imaging (MRI). A dominant cerebellum projects into the midbrain ventricular space, while the optic tectum represents a smaller proportion of total brain volume than previously estimated ...
Myoung Hoon Ha +9 more
wiley +1 more source
ABSTRACT Genetic reference databases underpin a wide range of molecular approaches used to study cetacean biodiversity, including environmental DNA (eDNA), yet their reliability depends critically on data completeness, taxonomic accuracy, and metadata quality.
Luís Afonso +12 more
wiley +1 more source
Ecosystem Impacts of the Landing Obligation for Unwanted Catch in Thermaikos Gulf (Greece)
ABSTRACT Discards by marine commercial fisheries have been an issue of major concern to the scientific community in recent years. We modeled the ecological and trophic consequences of a mandatory landing obligation (LO) regulated by the reformed Common Fisheries Policy [Regulation (EU) 1380/2013] on the Thermaikos Gulf ecosystem (northwestern Aegean ...
Ioannis Keramidas +3 more
wiley +1 more source
Applying the Ecological Trap Concept to Cetaceans
ABSTRACT Wild animals may select poor‐quality habitats due to mismatches between perceived and actual habitat quality, creating ecological traps. Although well explored in terrestrial systems, this concept remains underutilized for marine species.
Stephane P. G. de Moura +2 more
wiley +1 more source
Occurrence of the Atlantic spotted dolphin, Stenella frontalis, in southern Abrolhos Bank, Brazil
daniel danilewicz, paulo h. ott, eduardo secchi, artur andriolo and alexandre zerbini Laboratorio de Ecologia e Conservacao de Mamiferos Marinhos (ECOMMAR), Universidade Estadual de Santa Cruz, Departamento de Ciencias Biologicas, Rodovia Ilheus/Itabuna, km 16, Ilheus, BA, 45662-900, Brazil, Instituto Aqualie, Rua Edgard Werneck 428/32, Rio de Janeiro,
Daniel Danilewicz +4 more
openaire +1 more source
A NORTHERN RECORD OF PANTROPICAL SPOTTED DOLPHINS (Stenella attenuata) IN SOUTHWEST ATLANTIC OCEAN
Pantropical spotted dolphins, Stenella attenuata, are found across all tropical and subtropical oceans around the world, but their distribution is poorly known in the Southwestern Atlantic Ocean (SWA). A group of approximately 10 S. attenuata individuals was sighted in deep (~3,000 m), warm (~27.5 °C) and oligotrophic waters, near oceanic banks off ...
openaire +2 more sources
Since 1985, a well-studied community of free ranging Atlantic spotted dolphins, Stenella frontalis, and bottlenose dolphins, Tursiops truncatus, has been observed underwater in the Bahamas. Over this period, the dolphins have become habituated to human swimmers.
Herzing, Denise L. +2 more
openaire +3 more sources
While it is widely accepted that dolphins form associations with conspecifics based primarily on similarities in age class and reproductive status, perhaps equally important is the investigation into secondary influences such as kinship. Preferential association among kin is well-researched in numerous terrestrial species, but has only recently been ...
Welsh, Lillian S., Herzing, Denise L.
openaire +3 more sources
The coexistence of sympatric species, which share similar ecological requirements and compete for resources in the same area, requires mechanisms to reduce interspecific competition. In the Azores, common dolphins (Delphinus delphis) and Atlantic spotted dolphins (Stenella frontalis) exhibit a strong seasonal pattern, with common dolphins’ presence ...
Maria Inês Pinheiro da Silva +4 more
openaire +2 more sources
Background To tag large marine vertebrates, without the need to catch them, avoiding using barbs for tag retention, and precisely controlling tag location, the remote Tag Attachment Device on a pole (TADpole) was developed.
Michael J. Moore +9 more
doaj +1 more source

