Eesti Looduse
   fotovoistlus 2010


Eesti Loodus
summary EL 2008/7

About Baltic herring, our national fish
Tiit Raid describes the short history and the troublesome presence of the Baltic herring, and takes a peek into the future of the species. The Baltic herring is a subspecies of the Atlantic herring and inhabits the Baltic Sea. The author gives an overview of the research regarding the herring and its stock in the sea. He concentrates on the status of the two main fish stocks around Estonia: the Central Baltic herring and the Gulf of Livonia herring. The article is supplied with numerous graphical information about the herring stock in the Baltic Sea. In the end the author elaborates on the issue of virulence of the fish as a result of polluting the sea.

Baltic herring, the main foodstuff of Estonian nation
Sirje Rekkor speaks highly of the good culinary features of the fish and shares advice about how to make the best use of it in kitchen. She lists the mineral and vitamin content of the species.

The discovery of the Pulli settlement
Arvi Liiva reminds the introduction of the radio carbon method in Estonia and the story of discovery and timing of one of our oldest settlements. The radio carbon laboratory was founded by the University of Tartu in the end of 1950ies and was on of the three such labs in the former Soviet Union. In 1967 the first samples from the Sindi settlement near Prnu were brought to the lab and even though the number of samples was rather small, the settlement, unique for the whole North-Europe, was dated back to about 11 000 years.

Neeruti landscape protection area
Riina Kotter recommends visiting Pariis, a village in North-Estonia. The little hamlet is located right next to the Neeruti landcape protection area in Lne-Viru County. This area comprises Estonias most representative esker systems. The eskers and kames are covered with species-rich fresh boreo-nemoral forests and the depressions are filled with small lakes. The Neeruti area is like a museum of ice age with its surface features originating from around 12 500 years ago with the retreat of the continental ice sheet.

Estonian rarities: the wasp Polistes nimpha does not build a roof to its house
Mati Martin and Jaan Luig introduce a rather rare wasp with unique lifestyle, who is about to settle the light habitats of South-Estonia, spreading from the surroundings of Vrska to other areas of Estonia.

Estonian Nature enquires:
Riho Kinks writes about the activities of the Estonian Council of Environmental NGOs during the first half of the year.
Mrt Hanso explains the health state of our forests, considering that there is increasingly much talk about tree illnesses.

Cheer friendship with Boletuses
Urmas Kokassaar takes a biochemists look at Yellow Boletuses: what makes them better than other edible mushrooms? He describes the contents of the mushroom and gives an overview of the use of them.

Interview: There are enough Boletuses to fill a whole annual volume of Estonian Nature
Toomas Jriado has interviewed Vello Liiv, a hobby-mycologist and a photographer of mushrooms.

The IENE meeting in Hungary
Maris Kruuse shares her impressions of the European meeting of the specialists of nature-friendly transportation networks. The Infra Eco Network Europe is a society engaged in researching the fragmentation of wildlife habitats due to transportation networks and tries to find solutions for improving the situation. The article presents the main outcomes of the meeting.

How do you do, Lake Saadjrv?
Ingmar Ott and Aimar Rakko describe the past and present state of one of our best researched waterbodies, based on most recent research results. Lake Saadjrv is special for many reasons: it is rather large (708 ha), rather deep (25 m), with clear water and rich fauna, especially fish fauna. The article centers on issues of eutrofication of the lake. The detailed overview of the state of the lake is summarized as such: Lake Saadjrv is a light-watered lake with stratified and fairly coarse water. Compared to other such lake types in Europe, Lake Saadjrv is in a reasonably good state. When compared to the data of previous decades, the lake has managed to maintain the same qualities, making it a unique waterbody.

Tuhala-Nabala underground rivers: does the divining rod lie?
Heiki Potter continues to present the geobiologists methods of the divining rod and the more scientific-looking georadar and the results gained from one of Estonias most important karst areas, using the above-mentioned methods. The research based on the use of the georadar, performed by a Finnish company, confirmed the findings of Estonian geobiologists who used the divining rod to determine the underground rivers in the Tuhala-Nabala region.

Nature tuition in the Internet
Jaak Pder commends the new Internet-based environment, where a nature friend can find answers to many questions. The tuition environment is based on the internet portal www. Looduspilt.ee, and is divided into three parts: species introduction, quizzes and contests. It is important that the species introductions can be commented by the users.