Što se događa u Jadranskom moru? Znanstvenici primijetili veliku promjenu kod dupina
Scientists have observed a significant change in dolphin behavior in the Adriatic Sea, where dolphins are increasingly following fishing vessels to scavenge food scraps and discarded organisms. This behavior has become much more common compared to previous decades, with some areas showing up to 76% of fishing boats being followed by dolphins, compared to around 10% in the 1990s. Researchers warn that this behavior poses risks to dolphins, including injuries from fishing nets, changes in diet, social disruption, and potential hearing damage from boat noise. The study also notes that young dolphins learn this behavior from their mothers, suggesting a cultural transmission. Scientists highlight the broader issue of marine ecosystem degradation in the Adriatic, noting that common dolphins, once abundant, are now nearly extinct in the region. They call for reduced fishing intensity and less destructive methods to preserve biodiversity and allow fish stocks to recover.
Nova studija otkrila je da delfini u Jadranskom moru sve više prate ribarske brodove kako bi prikupljali otpadnu hranu i odbačene organizme, ponašanje koje su naučili od svojih roditelja.
Istraživanje je otkrilo da u nekim područjima delfini prate čak 76 posto ribarskih brodova, u usporedbi s samo 10 posto u sličnim studijama provedenim 1990-ih. Znanstvenici ovu promjenu pripisuju prekomernom ribolovu Sredozemnog mora, što je drastično smanjilo dostupnost prirodnog plijen za delfine. Jadransko more, jedno od najopasnijih ribolovnih područja na svijetu, suočava se s ribarskim pritiskom koji je dvostruko veći od razine koju Organizacija Ujedinjenih naroda za hranu i poljoprivredu (FAO) smatra održivom. Kao rezultat toga, delfini su prisiljeni tražiti alternativne izvore hrane u blizini ljudske aktivnosti.
Giovanni Bearzi, predsjednik talijanske organizacije Dolphin Biology and Conservation i koautor studije, objasnio je da se delfini sada često nalaze u blizini ribarskih brodova jer je prirodni plijen postao oskudni.
Dok ovo ponašanje omogućuje lakši pristup hrani, dolazi s značajnim rizicima. Delfini mogu pretrpjeti ozljede ili čak smrt od ribolovne opreme, a hranjenje u blizini brodova može utjecati na njihovu ishranu, društvenu strukturu i komunikaciju.
Dr. Randall Reeves, drugi autor studije i predsjednik Znanstvenog savjetodavnog odbora Američke komisije za morske sisavce, upozorio je na potencijalne negativne posljedice ovog ponašanja. Naglasio je da, iako delfini mogu imati koristi od jednostavnog pristupa hrani, dugoročne posljedice mogu biti štetne za njihovo zdravlje i dobrobit.
Istraživači su izrazili zabrinutost zbog sve šire degradacije morskog ekosustava na Jadranu i istaknuli da su obični delfini, koji su nekada bili u izobilju u regiji, sada gotovo izumrli, osim u nekoliko izoliranih područja.
Kako bi se riješili ovi problemi, znanstvenici pozivaju na hitne mjere za zaštitu biološke raznolikosti i smanjenje utjecaja destruktivnih ribolovnih praksi. Preporučuju izbjegavanje daljnje upotrebe ribolovnih mreža i primjenu manje štetnih metoda ribolova kako bi se očuvao morski život i omogućilo oporavak ribljih stokova.
Idi na primarne izvore (1)
Službeni izvori na kojima se izvještavanje temelji. Pročitaj ih izravno da zaobiđeš uokvirivanje.
A new study published in The Guardian reveals that dolphins in the Adriatic Sea are increasingly following fishing boats to scavenge discarded fish waste, a behavior learned from their parents. Scientists warn this shift is directly linked to overfishing, which has depleted natural prey and forced dolphins to adapt by relying on human activity. Researchers observed this behavior during a 148-day study tracking fishing vessels and found that the percentage of dolphins following boats rose dramatically—from 10% in the 1990s to 76% in recent years. While this adaptation helps dolphins survive in an overexploited ecosystem, experts caution that it exposes them to risks such as injury from fishing gear, disruption of social structures, and hearing damage from constant noise. The study highlights a broader ecological concern, noting that the once-abundant common dolphin population has drastically declined, leaving only small pockets of survival.
Procjena pristranosti (Lijevo): The article frames the issue through the lens of environmental degradation caused by industrial fishing practices, which are often tied to economic policies and corporate interests. The emphasis on overfishing as a systemic problem, rather than a local incident, aligns with progressive environmental
Scientists have observed a significant change in dolphin behavior in the Adriatic Sea, where dolphins are increasingly following fishing vessels to scavenge food scraps and discarded organisms. This behavior has become much more common compared to previous decades, with some areas showing up to 76% of fishing boats being followed by dolphins, compared to around 10% in the 1990s. Researchers warn that this behavior poses risks to dolphins, including injuries from fishing nets, changes in diet, social disruption, and potential hearing damage from boat noise. The study also notes that young dolphins learn this behavior from their mothers, suggesting a cultural transmission. Scientists highlight the broader issue of marine ecosystem degradation in the Adriatic, noting that common dolphins, once abundant, are now nearly extinct in the region. They call for reduced fishing intensity and less destructive methods to preserve biodiversity and allow fish stocks to recover.
Procjena pristranosti (Sredina): The article presents scientific findings and expert opinions without overtly favoring any political stance. It focuses on environmental concerns related to overfishing and marine conservation, which are policy issues but are reported neutrally through research data and quotes from scientists. There
★
Neka vijesti ostanu poštene.
ObjectiveNews financiraju čitatelji i bez oglasa je – pristranost vam pokazujemo, ne skrivamo. Podržite neovisno novinarstvo za 5 €/mjesec.
Croatia
