Being situated in the Coral Triangle and having an archipelagic geography, Philippines has one of the most diverse marine ecosystems. Water resources play a vital role in the survival of all living organisms. The country is rich in freshwater resources having about 80 lakes and 400 rivers. In addition, the country has about 330 freshwater fish, including nine endemic genera and more than 65 endemic species. Laguna de Bay is the largest lake in the country, situated at the heart of CALABARZON.
It has a lake surface area of 900 km2, bigger than the whole of Singapore, and an average depth of 2. 5 m. There are approximately 14,618,353 people inhabiting around the region, benefiting directly and indirectly. Fishing is the main livelihood around the area and it has an estimated Php 7. 3 million of fisheries production per year. The lake is also a source of power in the area. The Kalayan Hydroelectic Power Station in Laguna could generate 600 megawatts. It also provides irrigation for 102, 456 hectares of farmlands.
Laguna de Bay can be used for transportation too. There are about 5,000 motorized and non-motorized watercrafts in the lake. There are as well 208,000 large, medium and small business establishments. It also serves as a floodwater reservoir through Manggahan Floodway and Napindan Hydraulic Control System, which reduce floodwater in Metro Manila. Despite the many benefits that can be derived from freshwater lakes in the Philippines, many of our lakes and rivers are gradually degrading.
The Term Paper on Croatia & country
There are not so many countries in the world where the war made such a long-lasting impact as it did in the Republic of Croatia or Republika Hrvatska (as it is locally called). This country seemed to live in the continuous state of war. Starting from the ancient times and ending only in the beginning of the 21-st century, the war is deeply rooted in the consciousness of the Croatian people. Many ...
Our freshwater resources have been overused. The degrading situation of the lakes and rivers has affected the livelihood and health of the people relying on it. Protecting our environment should be valued by every Filipino. This exercise will provide the students of Nasc5 understanding on how human activities affect lake ecosystems, specifically the Laguna Lake. It also helps the students to realize ways and strategies to minimize the negative effects of human activities to lake ecosystems. OBJECTIVES
At the end of this exercise, the students should be able to: Describe the interaction of the terrestrial with aquatic ecosystems; Explain how different economic human activities directly and indirectly affect the Laguna de Bay ecosystem; and Discuss mechanisms by which the lake pollution can be prevented or minimized. METHODOLOGY The class of Nasc5 section UV visited different sites within the Laguna, which includes: Backyard duck farms in Victoria, Laguna Brgy. Bayog, Los Banos Tadlac Lake, Los Banos Municipal Hall Wastewater treatment Facility at Calamba, Laguna Dampalit Falls, Los Banos
In each sites that were visited, the students noted different human activities that directly and indirectly affect the ecosystem. At the backyard duck farm, how ducks are raised was studied, as well as the resources needed for raising ducks and its waste management. At Brgy. Bayog, human activities and establishments along the lake shore was viewed and reasons why the barangay hall is built near the lake shore. The domestic activities and its effects on Laguna lake were observed at the Tadlac lake, as well as the living organisms in the area.
The operation of Municipal Hall Wastewater Treatment Facility at Calamba was examined. Lastly, activities and tourism was observed at the Dampalit Falls in Los Banos. Mechanisms and strategies by which the negative impacts of human activities can be minimized were also recorded. RESULTS Table 2. 1. Different Economic Activities near the lakeshore in Brgy. Bayog, Los Banos. ESTABLISHMENT ACTIVITY POSSIBLE POLLUTANT Fish cage Fishing Table 2. 2. Different Economic and Domestic Activities near Tadlac Lake. ESTABLISHMENT ACTIVITY POSSIBLE POLLUTANT Resorts DISCUSSION
The Essay on How Human Activities Negatively Affect the Ecosystem
In various ecosystems, negative changes have been seen as consequences of human activities. Specifically, these various activities of people have been observed to contribute directly and indirectly to the negative changes and implications in one of the major ecosystems, the marine ecosystem. This paper suggests that many of the human activities employed in the environment, specifically the marine ...
