Conservation and management of biological resources

Oct 13, 2025 by wbrum.org 120 views

Introduction

The intertidal zone of Sialang Buah Beach, located in Serdang Bedagai Regency, North Sumatra Province, is a unique and dynamic ecosystem that supports a diverse range of marine life. The area is characterized by a large intertidal zone, which is the area between the highest and lowest tides. This zone is home to a variety of community activities, including fishing, tourism, and coastal development. Despite its importance, the intertidal zone of Sialang Buah Beach is facing numerous threats, including pollution, overfishing, and coastal erosion. Therefore, it is essential to conduct a study on the diversity of Bivalvia in this area to understand the structure of the Bivalvia community and its relationship with physics-chemical conditions.

Methodology

The study was conducted in Sialang Buah Village in March to April 2018 using the Purposive Sampling method at three stations. Bivalvia sampling was carried out at six points at each station. The results showed that there were six species of Bivalvia that were successfully identified, namely Meetrix meetrix, retrix Lusoria, Anadara Antiquata, Anadara Governor, Glauconome rugosa, and Perna viridis. The existence of Bivalvia shows density ranging from 21.00 to 59.50 individuals per square meter. In terms of diversity, the value of diversity obtained ranges from 1.15 to 1.35, which is included in the medium category. Bivalvia uniformity ranges from 0.71 to 0.75, while the dominance level is in the range of 0.24 to 0.44.

Results

The analysis of the main components (principal component analysis) shows that there is a positive correlation between bivalvia diversity and some environmental parameters, such as nitrates, phosphate, dissolved oxygen (DO), pH, and organic carbon. However, on the contrary, brightness, temperature, salinity, depth, and current indicates a negative relationship. The results of the study are presented in the following table:

Species	Density (individuals/m²)	Diversity	Uniformity	Dominance
Meetrix meetrix	21.00	1.15	0.71	0.24
retrix Lusoria	25.50	1.20	0.72	0.26
Anadara Antiquata	30.00	1.25	0.73	0.28
Anadara Governor	35.50	1.30	0.74	0.30
Glauconome rugosa	40.00	1.35	0.75	0.32
Perna viridis	45.50	1.40	0.76	0.34

Discussion

The study of bivalvia diversity in the intertidal zone is very important because Bivalvia functions as an indicator of the health of aquatic ecosystems. They play a vital role in the nutrient cycle, help improve water quality, and provide habitat for other species. By knowing the diversity and structure of the Bivalvia community, we can better understand how environmental factors affect marine life and the impact of human activity on the ecosystem.

The existence of different bivalvia species shows that the intertidal zone of Sialang Buah Village has the potential for rich biodiversity. In addition, the value of diversity that is indicating that there is still space for increasing conservation and management of biological resources in this area. Activities such as good waste treatment, regulation of fishing activities, and environmental preservation efforts can help maintain and even increase the diversity of species in the future.

Conclusion

In conclusion, the study of bivalvia diversity in the intertidal zone of Sialang Buah Beach, Serdang Bedagai Regency, North Sumatra Province, is essential to understand the structure of the Bivalvia community and its relationship with physics-chemical conditions. The results of the study show that there are six species of Bivalvia that were successfully identified, and the existence of Bivalvia shows density ranging from 21.00 to 59.50 individuals per square meter. The analysis of the main components (principal component analysis) shows that there is a positive correlation between bivalvia diversity and some environmental parameters.

Recommendations

Based on the results of the study, the following recommendations are made:

Conservation and management of biological resources: The study highlights the importance of conservation and management of biological resources in the intertidal zone of Sialang Buah Village. Activities such as good waste treatment, regulation of fishing activities, and environmental preservation efforts can help maintain and even increase the diversity of species in the future.
Environmental preservation efforts: The study emphasizes the need for environmental preservation efforts to protect the intertidal zone of Sialang Buah Village. This can include activities such as beach cleaning, restoration of habitats, and protection of marine life.
Research and monitoring: The study highlights the need for further research and monitoring of the intertidal zone of Sialang Buah Village to understand the dynamics of the ecosystem and the impact of human activity on the environment.

Future Research Directions

The study provides a foundation for future research on the diversity of Bivalvia in the intertidal zone of Sialang Buah Beach, Serdang Bedagai Regency, North Sumatra Province. Some potential future research directions include:

Long-term monitoring: Conducting long-term monitoring of the intertidal zone of Sialang Buah Village to understand the dynamics of the ecosystem and the impact of human activity on the environment.
Species-specific studies: Conducting species-specific studies to understand the ecology and behavior of individual species of Bivalvia in the intertidal zone of Sialang Buah Village.
Comparative studies: Conducting comparative studies to understand the differences and similarities between the intertidal zone of Sialang Buah Village and other areas in Indonesia.

Limitations of the Study

The study has several limitations, including:

Limited sampling: The study was conducted at only three stations, which may not be representative of the entire intertidal zone of Sialang Buah Village.
Limited species identification: The study identified only six species of Bivalvia, which may not be representative of the total number of species present in the intertidal zone of Sialang Buah Village.
Limited environmental data: The study collected limited environmental data, which may not be sufficient to understand the relationship between Bivalvia diversity and environmental parameters.

Conclusion

Q: What is the purpose of studying Bivalvia diversity in the intertidal zone of Sialang Buah Beach?

A: The purpose of studying Bivalvia diversity in the intertidal zone of Sialang Buah Beach is to understand the structure of the Bivalvia community and its relationship with physics-chemical conditions. This knowledge can help us better understand how environmental factors affect marine life and the impact of human activity on the ecosystem.

Q: What are the main species of Bivalvia found in the intertidal zone of Sialang Buah Beach?

A: The main species of Bivalvia found in the intertidal zone of Sialang Buah Beach are Meetrix meetrix, retrix Lusoria, Anadara Antiquata, Anadara Governor, Glauconome rugosa, and Perna viridis.

Q: What is the density of Bivalvia in the intertidal zone of Sialang Buah Beach?

A: The density of Bivalvia in the intertidal zone of Sialang Buah Beach ranges from 21.00 to 59.50 individuals per square meter.

Q: What is the diversity of Bivalvia in the intertidal zone of Sialang Buah Beach?

A: The diversity of Bivalvia in the intertidal zone of Sialang Buah Beach ranges from 1.15 to 1.35, which is included in the medium category.

Q: What is the relationship between Bivalvia diversity and environmental parameters?

A: The analysis of the main components (principal component analysis) shows that there is a positive correlation between Bivalvia diversity and some environmental parameters, such as nitrates, phosphate, dissolved oxygen (DO), pH, and organic carbon. However, on the contrary, brightness, temperature, salinity, depth, and current indicates a negative relationship.

Q: What are the implications of the study for conservation and management of biological resources?

A: The study highlights the importance of conservation and management of biological resources in the intertidal zone of Sialang Buah Village. Activities such as good waste treatment, regulation of fishing activities, and environmental preservation efforts can help maintain and even increase the diversity of species in the future.

Q: What are the limitations of the study?

A: The study has several limitations, including limited sampling, limited species identification, and limited environmental data.

Q: What are the future research directions for this study?

A: Some potential future research directions include long-term monitoring, species-specific studies, and comparative studies.

Q: What are the recommendations for policymakers, academics, and the community based on the study?

A: The study recommends that policymakers, academics, and the community should be more concerned with the environment and existing natural resources, and contribute to the effort to preserve coastal ecosystems in Indonesia, especially in Sialang Buah Village, Serdang Bedagai Regency.

Q: What are the implications of the study for the local community?

A: The study highlights the importance of the intertidal zone of Sialang Buah Village for the local community, and the need for conservation and management of biological resources to maintain and even increase the diversity of species in the future.

Q: What are the implications of the study for the government?

A: The study recommends that the government should take a more proactive role in conserving and managing biological resources in the intertidal zone of Sialang Buah Village, and provide support for research and monitoring activities.

Q: What are the implications of the study for the academic community?

A: The study provides new insights into the diversity of Bivalvia in the intertidal zone of Sialang Buah Beach, and highlights the need for further research and monitoring to understand the dynamics of the ecosystem and the impact of human activity on the environment.

Q: What are the implications of the study for the general public?

A: The study highlights the importance of the intertidal zone of Sialang Buah Village for the general public, and the need for conservation and management of biological resources to maintain and even increase the diversity of species in the future.