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Abstrak :
ABSTRACT
The genus Ulva (Phyllum Chlorophyta, Family Ulvaceae) is a kind of green seaweed which has been exploited for many purposes is very rich in bioactive compounds that are important for medical purposes, such as anti coagulan, anti cancer; anti oxidant, anti microbial and anti influenza. Ulva has been used for a long time but still lack of cultivation techniques lnformation about the characteristics and biological aspects of Ulva is important for basis technology of Ulva cultivation, including reproductive biology, habitat, distribution and commercial uses of Ulva. The technology of Ulva cultivation is expected to reduce exploitation of Ulva in the wild.

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ABSTRACT
The algal blooms or red tide that resulting mass mortality of fish and other biota are frequently occurred in coastal water: where human activities and population increase in significant. The impacts not only to marine life and environmental quality, but also impact on the fishery economic, food security and health consumer; and also psychology of the surrounding community. In some countries the impact of aquatic disaster has resulted in human fatalities after consuming fishery products. The incidence of red tide phenomenon is characterized by the appearance of other colors in the surface water such as red, red-brown or greenish depending on the causative speciean fact, the incidence of algal bloom has a connection with the amount of nutrients concentration in the waters, which sourced from human activities in the upland, domestic waste, agricultural, industrial waste, etc, which run into the water via rivers or run off 0n the other hand, the increasing eutrophication may lead to alteration of nutrients composition in the waters and can trigger the bloom of toxic species in the waters (toxic algal bloom).

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ABSTRACT
Fishing activities currently require good management, in order to meet the protein needs of the community. Knowledge on the distribution pattern of fishes related to the condition of marine waters is one way of good management efforts. Several oceanographic parameters that can affect the distribution of fishes are SST (Sea Surface Temperature), chlorophyll a, salinity, and others. Each type offish has different optimal level of particular oceanographic parameters. The distribution of oceanographic parameters are effected by West monsoon, East monsoon and the season inbetween. Therefore, by studying oceanographic parameters on a regular basis, we can determine the fishing areas.

Abstrak :
ABSTRACT
MECHANISM OF GENETIC DISORDER AND MUTATION ON BIVALVES INFLUENCED BY LEAD. Bivalves have a feeding mechanism of suspension-feeder or deposit-feeder or both, making bivalves consume the material contained in either beneficial or toxic water. Bivalve can survive even with the condition of polluted waters, including the concentration of heavy metals that exceed a specified threshold. Lead is one type of harmful pollutants originating from anthropogenic activities and contaminated marine waters. The purpose of this paper is to provide knowledge about the process or mechanism of bivalves to defend itself against lead, which can be found in their environment, especially genetic disorders and mutations that may be experienced by marine bivalves as a result of exposure to lead.