A5047218956- Marine animal studies overview
- Underwater Acoustics Research
- Animal Vocal Communication and Behavior
- Marine and fisheries research
- Coral and Marine Ecosystems Studies
- Cephalopods and Marine Biology
- Marine Ecology and Invasive Species
- Cardiac Valve Diseases and Treatments
- Species Distribution and Climate Change
- Wildlife Ecology and Conservation
- Turtle Biology and Conservation
- Ichthyology and Marine Biology
- Marine and coastal plant biology
- Food Industry and Aquatic Biology
- Arctic and Russian Policy Studies
Associazione Italiana Vulvodinia Onlus
2014-2025
Tethys Research Institute
2003
ABSTRACT 1. The recent decline in the Mediterranean population of short‐beaked common dolphins Delphinus delphis has been subject scientific controversy and political indifference. Research on these animals very limited there no large‐scale, systematic effort to assess monitor their abundance distribution. consequent lack data prevented a good understanding historical ongoing trends. 2. Nonetheless, literature osteological collections confirm that were widespread abundant much Sea until late...
Driftnet fishing is notorious for being the major source of fatal entanglement cetaceans and its devastating impact on some pelagic species Mediterranean fauna. Of all large cetaceans, sperm whale (Physeter macrocephalus) most affected by this technique. On 9 August 2004, a group five whales, two adult females three juvenile individuals, was found trapped in driftnet 40 miles southwest off Capo Palinuro (Italy). Their tails were totally immobilised net one animal completely entangled. All...
We investigated the presence and diversity of cetaceans in Mediterranean Sea, analysing data collected by 32 different research units, over a period 15 years (2004–2018), shared on common web-GIS platform named Intercet. used encounter rate, species prevalence, Shannon index as parameters for analysis. The results show that cetacean diversity, context basin, is generally quite low when compared with eastern Atlantic, few species, namely striped dolphin, bottlenose fin whale, sperm dominate...
The common bottlenose dolphin is a cosmopolitan species that can be found worldwide in all oceans except polar and sub-polar waters. This wide distribution associated with certain level of morphological variation, which seems consistent the presence globally distributed pelagic/offshore ecotype several coastal/inshore ecotypes along continental shelf. In Mediterranean Sea, regularly occurring second most sighted cetacean after striped dolphin. According to some studies, more closely related...
ABSTRACT The Mediterranean sperm whale sub‐population is considered ‘Endangered’ by both ACCOBAMS and the IUCN. Conservation policies require protected species populations to be monitored, but distribution movements of whales across Sea are still poorly understood. To provide insight into movements, photo‐identification catalogue from Strait Gibraltar was compared with seven other collections: (a) North Atlantic Sperm Whale Catalogue (NAMSC), catalogues (b) Alboran Sea, Spain, (c) Balearic...
ABSTRACT The identification of significant habitats for highly mobile marine vertebrates is essential their conservation. Evidence often difficult to obtain deep‐diving species such as sperm whales ( Physeter macrocephalus ), where standard visual survey methods are not sufficient detect the species. Sperm rely on sound most activities, so acoustics a crucial tool locate them in environment and collect information about daily life. We used maximum entropy (MaxEnt) modeling approach predict...
Abstract Preservation of endangered species is now recognized as a relevant component regional and global conservation actions achieved through the maintenance remaining populations in favourable status. The Mediterranean common dolphin ( Delphinus delphis ) listed an Endangered subpopulation International Union for Conservation Nature Red List, with declining numbers some areas where it has been studied numerous years. Prey depletion, fisheries bycatch, pollution, health risks, climate...
Risso's dolphins are known for the persistency of their natural markings, possibly due to loss pigment during healing process skin wounds. Nonetheless, actual longevity and reliability each mark type has never been assessed. In this paper, we used photographs investigate etiology marks in species, analyze distribution temporal variability, discuss implications photo identification. Nineteen types were described on dorsal fin dolphin, including 2 new literature: snake-like protruding fat....
ABSTRACT Boat surveys aimed at studying sperm whales in the Tyrrhenian Sea were conducted between 2002 and 2011. During 768 daily surveys, a total effort of 32 602 km was achieved within an area 8800 2 resulting 92 encounters with 229 whale individuals. Average encounter rates 0.5 groups per 100 , higher concentration vicinity submarine canyon Cuma, confirming importance for species this small hotspot Mediterranean Sea. Encounter increased increasing distance from coast. It is possible that...
Abstract When implementing conservation strategies involving passive acoustic monitoring, an accurate description of signal properties is crucial, especially when studying threatened and elusive vocalizing species. Misrepresentation detected sounds can result in information loss or misclassification species, thus compromising the management process. Distortion time–frequency features depends on characteristics propagation through sea water, sensitivity sampling frequency acquisition system...
ABSTRACT The sperm whale ( Physeter macrocephalus ) is one of the eight species cetaceans routinely encountered in Mediterranean Sea; however, information on social organization whales living basin remains scarce. behaviour within female units, and groups males are reported, made over an 11‐year period (2002–2012) waters around islands Ischia Ventotene (Tyrrhenian Sea, Italy), area characterized by presence a submarine canyon system coastal marine protected (‘Regno di Nettuno’ MPA)....
Abstract The short‐beaked common dolphin is a highly vocal species, with wide distribution in all oceans, including the Mediterranean and Black Seas. In Sea, inhabits both pelagic neritic waters. Osteological collections literature show that dolphins were widespread abundant much of Sea until late 1960s. During recent decades species has declined whole basin, and, 2003, it was listed as Endangered IUCN Red List. Genetic studies strongly suggest Eastern North Atlantic populations are isolated...
Abstract This study presents data on a local population of short‐beaked common dolphin monitored in the waters off Ischia Island (Gulf Naples, Italy) over 16‐year period (2000‐2015). We examine occurrence and distribution perform photoidentification analysis. The presented support hypothesis that around represent feeding area, as well calving an important nursery area for this population, providing favourable conditions which to give birth raise calves. levelling‐off curves together with...
An unusual observation of a hagfish ( Myxine glutinosa ) anchored to living bottlenose dolphin Tursiops truncatus was documented in an encounter with group about 80 dolphins during ongoing long-term research program on cetaceans the central Mediterranean Sea, Italy. The body observed extruding from blowhole showing stereotypical surfacing–breathing pattern. lasted 2h; photo-identification, acoustic, and behavioral data were collected. Succorant behaviors (i.e., "standing by") conspecifics...
Oceanomare Delphis Onlus (Italy), BICREF (Malta) and OceanCare (Switzerland) jointly organized the 1st International Workshop on Mediterranean short-beaked common dolphin (Delphinus delphis, Linneaus 1758), which took place in Ischia, 13–15 April 2016, order to assess its status this region, understand major threats it faces outline possible conservation action plans. Furthermore, process for IUCN Red List re-assessment of population was started. The workshop brought together representatives...