3 results for month: 02/2021

Morigenos and Bananko sighted after a long time

Yesterday and today, just off the coast of Fiesa and Piran, we encountered Morigenos and Bananko, two male dolphins we know well. We first met Morigenos in March 2003, while Bananko was first seen in July 2004. Both of them are among the most commonly observed dolphins in Slovenian waters, as well as in the Gulf of Trieste in general.  We last saw them in August 2020. During this autumn-winter period we spent less time in the field, due to both weather conditions and the situation related to covid-19, so we have not seen some of our studied dolphins for a while. That is why we were extremely happy to spot these two familiar fins.


Our dolphin searching skills have reached a new level! Today we managed to locate a group of dolphins in almost zero visibility, using only sound. We headed out to sea at dawn in very dense fog, with visibility of less than 50 m. These aren’t conditions in which we would typically conduct fieldwork, but due to recent sightings we decided to go out regardless. Soon after we left the harbour, we stopped the boat and put our hydrophone in the water. Sure enough, we detected dolphin whistles almost immediately. Using both intuition and successive detections of dolphin vocalisations as a guide, we managed to get closer to the dolphins bit by bit, until ...


The waters around Piran were pretty noisy today. These are the sounds of 35-40 dolphins, including males, females and calves, recorded by Morigenos research team using a hydrophone (underwater microphone). The Gulf of Trieste, including the waters of Slovenia, is home to a resident population of about 150 bottlenose dolphins (Tursiops truncatus). Dolphins use these waters to feed, reproduce and raise their young. This population has been studied by Morigenos researchers for 18 years, so we know most of these dolphins well. Individual animals are identified by natural markings on their dorsal fin. Each identified dolphin is given a name and included ...