The recent decline in the Mediterranean population of short‐beaked common dolphins
Delphinus delphis has been the subject of scientific controversy and political indifference …

Interactions between cetaceans and fisheries in the Mediterranean Sea are probably as old
as the first human attempts to catch fish with a net. Countless leports and artefacts from the …

The direct killing and intentional live capture of dolphins and porpoises (see Report Section
6) do not exhaust a pool of problems which are focused on mutual impact of fisheries and …

There are only few taxonomic groups of marine mammals in the Black Sea fauna that
include three cetacean (odontocete) species/subspecies-the harbour porpoise (. Phocoena …

Introduction Population abundance is amongst the most basic and crucial parameters for the
assessment of conservation status of any species. Three species of odontocetes, all …

assessment of cetacean density and abundance by linear transect survey was conducted in
2016 and 2017 in the shallowest coastal area of the Ukrainian sector of the north-western …

The accumulation of heavy metals in animal tissues is an important factor in monitoring the
health of any marine ecosystem, and the Black Sea is no exception. The use of aquatic …

Black Sea cetaceans are isolated and nominated as endemic subspecies listed in the IUCN
Red List of Endangered species: the harbour porpoise and bottlenose dolphin as …

Institute of Oceanology, 40 Parvi Mai Street, PO Box 15, Varna, Bulgaria E-mail:
vio_raykov@ abv. bg; vraykov@ io-bas. bg; mpanayotova@ io-bas. bg abstract. over the …

The question of whether species assemblages are controlled by food availability or by
predators is a fundamental ecological question that has implications for biological …