Sendang Biru beach is a one of the coastal area located in Sumbermanjing Wetan, Malang, East Java-Indonesia. As a sea tourism, there are another residents activities such as fishing, fish landing and auction in Malang. That activities can caused pollution on the Sendang Biru aquatic environment. The research aim were to describe the water quality of Sendang Biru aquatic environment based on phytoplankton diversity. This research used several data collection techniques, that were microalgae sampling technique and measurement of physical and chemical water quality. Phytoplankton found in Sendang Biru Beach consists of 47 genus that are genus from seven divisions, Bacillariophyta, Chlorophyta, Cyanophyta, Euglenophyta, Dinophyta, Chrysophyta and Charophyta. The most abundant phytoplankton while having the Indeks Nilai Penting (INP) at the edge zone is the genus Oscillatoria sp. (the abundance is 4368000 Ind/L and INP 26,288). In the central and inner zones are both dominated by Coscinodiscus sp. (The abundance of center zone 4992000 Ind/L and INP 30,499; the abundance of inside zone is 9464000 Ind/L and INP 40,773). The level of diversity of phytoplankton in the three area of Sendang Biru beach are 2,297 in the edge zone; 2,37 in the central zone, and 1,8 in the inner zone. The pollution status of Sendang Biru beach can be classified as polluted moderately based on diversity index value on three different zone in the Sendang Biru Beach.
Boranan rice is a traditional and typical food from the Lamongan city and can only found in the Lamongan area. Boranan rice, consisting of rice, spices, side dishes, and peanut crips; which is a type of cracker made from rice flour with seasoned and fried. One of special side dish from Boranan Rice is smoked Sili Fish. Sili Fish is a tropical river fish that usually used to ornamental fish and also cosumed by Lamongan people. The purpose of this study was to identify the type of Sili Fish that used as a complement to boranan rice and to describe the history of Sili Fish that used for side dishes of boranan rice. The research was conducted using interviews and direct field observations. The type of Sili fish used in the side dish of boranan rice is Macrognathus aculeatus (Order: Synbranchiformes, Family: Matacembelidae). Sili fish is used as a typical side dish of boran rice because no community has yet processed sili fish as food, so that the Lamongan people, especially those who sell boran rice, take advantage of the presence of sili fish which is found in the Bengawan Solo river by making it a special side dish in boran rice.
The problem faced by farmers in Bulumargi village, Babat district, Lamongan Regency is pest attack. Pest attack control carried out by farmers using synthetic pesticides. The use synthetic pesticides if carried out continuously gives impacts such as pest resistance, pest resurgence, death of onotarger animalincluding natural enemies, emergence of secondary pest explosions, pesticide residues in plant and environment. Synthetic pesticide residues found in agricultural products very dangerous if consumed for a long period of time, so a solution is needed that can reduce farmers' losses due to pests on crops. The purpose of this research is to eradicate pests using refugia plants. The research method used was socialization with several stages, counseling, discussions and aplications in rice fields. The result of this research is that the community has increased their knowledge and skills in the use of refugia plants. The conclusion of this research is the increasing public knowledge in utilizing refugia plants to reduce the use of synthetic pesticides and increase rice production in the long term.
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