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The “mucilage”, which fishermen refer to as “sea saliva”, which is the layer formed by microorganisms in the sea along with sewage, has been effective on the surface of the Sea of Marmara for days.
Member of the academic staff of the Faculty of Aquatic Sciences of Istanbul University Prof. Dr. Yelda Aktan stated that the coating is “sea saliva”.
Aktan said: “It has been observed off our shores for a while, but as a result of mobility at sea, it has emerged a bit more recently. Basically, I can say that natural organisms are caused by the excessive increase of normal sea creatures as a consequence of some deterioration of environmental conditions. In other words, there is a blockage somewhere in the ecosystem where these creatures, opportunistic species, are beginning to over-breed. We can list the factors that trigger this as follows; The sea is very active now, there was a nutritious salt accumulating in the bottom waters throughout the winter, with this movement they rise to the surface and with the warming of the climate on the surface, this type of increase is usually seen in the spring . months. When you find the right temperature and light, it can go too high. It is about living creatures in the natural environment, but changes in some factors; For example, effects such as excessive input of waste can cause them to increase excessively. Pollution breaks this balance. There is dense household garbage on the shores of Istanbul, it is necessary to think not only of the shores of Istanbul but also the Sea of Marmara at the basin level, there are many large cities, there are also industrial activities. Although the treatment facilities are operated by the municipalities, the waste that enters from them is present in the uncontrolled waste that comes from industrial activities, entering through streams. These, of course, trigger the rise of these creatures, “he said.
“THE SEA OF MARMARA IS UNDER GREAT PRESSURE”
“These creatures develop first on the surface when they encounter light on the surface,” Aktan said, adding: “But these very short-lived creatures slowly die and begin to collapse after 15 days and 3-4 weeks.” . When they settle to the bottom, they continue to decompose, with bacterial activity, and can create an oxygen-free environment at the bottom. This is the first effect. Apart from that, we can tell these organisms after laboratory studies; If there is a species that secretes some toxic toxicity, this release can cause harm to marine creatures in the food chain, extending to humans. Create visual pollution. When it collapses to the bottom, it can cause habitat loss by draping over fish or other living creatures that cannot escape. In fact, it has many effects. We only see the surface of the sea, but we can see its effect on all the water and on the bottom. The Sea of Marmara, especially the Princes’ Islands, has a dynamic system and will gradually begin to die after the nutritive salts are depleted with movement in no time. It will return to normal with oxygenation from the movements of the water. However, this formation of mucilages in which the movements of the water are minor, or ‘saliva’ or ‘lez’ in the fisherman’s language, can hit the banks and take longer in quiet areas. For example, in the Gulf of Izmit, it was very intense in 2007, it is a more inactive region, the water exchange capacity is not very high. Its effects can be much longer. Fishermen say “you see once every 10 years” In fact, fishermen are observed from time to time in the intervening years, but not much. But generally it has such a cycle, it repeats every 2-3 years. The same problem exists not only in the Sea of Marmara, but also in the North Aegean. But because they have a more dynamic structure, it is not very permanent. The Sea of Marmara is under enormous pressure and has an impact on both human activities and climate change. The temperature is above normal. These are all factors, “he said.
“FISHING IS A VICTIM”
The fishermen at the Kartal fishermen’s refuge stated that this saliva had been in the sea for 1.5-2 months and could not be caught.
Osman Nuri Özdinar, member of the Board of Directors of the Kartal Limited Liability Fishing Cooperative, said: “What makes fishermen victims is saliva. It was a problem of the sea that tears the nets, damages the fish in the sea, damages the game. In this situation, there is a problem, it becomes liquid, then sinks to the bottom, dies. The bottom of the sea, its waters and the fishermen were disturbed by the sea. Authorized boards are investigating this, we do not know how to take action, whether the result is concluded or not. The fisherman is a victim. Now it has become mud, which victimizes these beaches, and when there is a northeastern climate, it victimizes the opposite beaches. It flows with water. With the warming of the waters it collapses to the bottom, when it collapses it becomes muddy there, we do not know how it affects the nests of fish or the bottom of the sea. We can’t hunt now, it was scarce at first, then it increased more, now it has grown more, they haven’t been hunting for about 1.5-2 months. This thing that worries us has stayed like this in 13 hits, the nets do not reach the bottom, add additional bullets, weight to sink it to the bottom. Because it is mud, it does not sink the nets from top to bottom, it sticks to the nets, it stays high. The nets die, they are cut, sometimes they are torn, they collapse to the bottom, they are torn off, “he said.
“DO NOT FISH, NOBODY CAN COME TO THE SEA”
The fisherman Cengiz Altunparlar, on the other hand, showed the saliva and said: “It is said that it happens when the jellyfish dies. You can’t network or do anything. There is no fishing, no one can go out to sea anyway for saliva. Here is the status of the networks. This has been around for 1.5-2 months. The nets do not go to the bottom and the fish is now dead because it does not. It was the same 10 years ago, he was there last year, but it was very little, more this year. With Sludge, bring the saliva into the canal as is, “he said.
“IT WAS THE FIRST IN 1998”
Another fisherman, Mehmet Erdemir, said: “It has been like this for 1.5 months. We cannot work, damage our networks, we cannot do anything. The nets do not sink, we remove it, we cannot buy fish, because the nets do not sink to the bottom. We shoot, we shoot, we do nothing else. It was like this 10 years ago, it was the first in 1998, it is repeated approximately once every 10 years, “he said.
