>lomete a alonghe adrdriatic.fnv itit's aopular holiday deststinion fofobosnia a herzogovina.ewage flows, directly into the sea - some of it as unfiltered waste. >> the waste water that we need to deal with, and there is also need for better law regulations, which will help us to maintain our waste. >> one cause for the decline of species is overfishing. the biologists see sustainable fish farms as a possible solution. this one is owned by ivan kremek. his family fished here for generations until open-water catches declined. >> our forefathers fished, but it was different then. they fished for themselves, and even they didn't have enough to supply the market. that's why we've started these fish farms. today we can supply all of bosnia and herzegovina with fish. >> the findings of andrej gajic and his team have raised international concern. now gajic hopes to open an ocean research institute in his home country. and he hopes that one day, biodiversity will return to the adriatic -- so that it will be as rich in species as this marine aquarium. >> water is most valued where it's

>lomete a alonghe adrdriatic.fnv itit's aopular h hiday deststinion fofobosnia a herzogovina.s sewage flows, directly into the sea - some of it as unfiltered waste. >> the waste water that we need to deal with, and there is also need for better law regulations, which will help us to maintain our waste. >> one cause for the decline of species is overfishing. the biologists see sustainable fish farms as a possible solution. this one is owned by ivan kremek. his family fished here for generations until open-water catches declined. >> our forefathers fished, but it was different then. they fished for themselves, and even they didn't have enough to supply the market. that's why we've started these fish farms. today we can supply all of bosnia and herzegovina with fish. >> the findings of andrej gajic and his team have raised international concern. now gajic hopes to open an ocean research institute in his home country. and he hopes that one day, biodiversity will return to the adriatic -- so that it will be as rich in species as this marine aquarium. >> water is most valued where i