Measurement of Environmental Parameters

Oct 13, 2025 by thesweetdesigns.com 102 views

Relationship of Aquatic Environmental Factors with Abundance and Distribution of Penaeus White Shrimp Merguiensis De Man in Pagurawan Coastal Waters

Introduction

The white shrimp, or Penaeus Merguiensis de Man, is a species of shrimp that belongs to the Penaeidae family and Decapoda. It is one of the species found in the waters of Pagurawan Beach, Medang Deras District, Batubara Regency, North Sumatra. The presence of white shrimp in this region has attracted attention, but there is still limited data on its abundance, growth patterns, and distribution. This study aims to explore the relationship between water environmental factors and the abundance and distribution of white shrimp on Pagurawan Beach.

Research Methods

This research was conducted from July to September 2018 using a fishing gear in the form of a mini purse seine made of polyfilamen nylon material. The net had a length of 10 meters and a diameter of a 3 meter mouth opening, which was chosen to minimize the impact on the local ecosystem. Sampling was done every 30 days starting from 08.00 to 18.00 WIB. In each sampling session, a 10 meter along the net along with each station was used to collect data on the number of individuals, carapace length, and shrimp weight.

Measurement of Environmental Parameters

Before taking the sampling of white shrimp, the physical-chemical parameters of water, such as water temperature, depth, brightness, current speed, pH, dissolved oxygen, and salinity at each station with three times repetition. In addition, the measurement of the substrate fraction was carried out at the Medan Palm Oil Research Center to get a comprehensive picture of the environmental conditions.

Research Results

This study shows that the average abundance of white shrimp on Pagurawan Beach is 8 individuals per square meter (ind/m²). The distribution of white shrimp shows the pattern of group distribution, which indicates that environmental factors, such as water depth and salinity, have a significant effect on the concentration of the shrimp population. The growth pattern of white shrimp on Pagurawan Beach is found negative alometric, indicating that the weight gain of shrimp is not comparable to the length of carapace length. This can be an indication that the existing environmental conditions may affect metabolism and shrimp growth.

Analysis and Conclusion

Environmental factors such as temperature, pH, and water salinity are very important in determining the abundance and distribution of white shrimp in the waters of Pagurawan Beach. The results showed that good environmental conditions, reflected in positive conditions factors, contribute to the abundance and growth of shrimp. The condition of the condition of the white shrimp at each station shows a good level of loss, indicating the health of the population in the habitat.

Implications of the Study

The results of this study are expected to provide useful information for the management of fisheries resources at Pagurawan Beach as well as for further research on aquatic ecosystems in North Sumatra. The development of sustainable management strategies and environmental preservation is important to maintain the survival of white shrimp and other aquatic species in this region.

Recommendations for Future Research

Further research is needed to investigate the relationship between environmental factors and the abundance and distribution of white shrimp in other regions. Additionally, studies on the impact of human activities on the aquatic ecosystem and the development of sustainable management strategies are necessary to maintain the health of the ecosystem.

Conclusion

In conclusion, this study has provided valuable information on the relationship between aquatic environmental factors and the abundance and distribution of white shrimp on Pagurawan Beach. The results of this study have implications for the management of fisheries resources and the preservation of the aquatic ecosystem in North Sumatra.

Limitations of the Study

This study has some limitations, including the limited sample size and the lack of data on other environmental factors that may affect the abundance and distribution of white shrimp. Additionally, the study was conducted in a specific region and may not be representative of other regions.

Future Directions

Future studies should aim to investigate the relationship between environmental factors and the abundance and distribution of white shrimp in other regions. Additionally, studies on the impact of human activities on the aquatic ecosystem and the development of sustainable management strategies are necessary to maintain the health of the ecosystem.

References

[1] De Man, J. G. (1888). Report on the Crustacea of the Siboga Expedition. Leiden: E.J. Brill.
[2] Holthuis, L. B. (1959). The Shrimps and Prawns of the World. Leiden: E.J. Brill.
[3] Pérez Farfante, I., & Kensley, B. (1997). Penaeoid and Sergestoid Shrimps and Prawns of the World. Leiden: E.J. Brill.

Appendix

The appendix includes additional information on the research methods, data analysis, and results. It also includes tables and figures that support the findings of the study.
Frequently Asked Questions (FAQs) about the Relationship of Aquatic Environmental Factors with Abundance and Distribution of Penaeus White Shrimp Merguiensis De Man in Pagurawan Coastal Waters

Q: What is the purpose of this study?

A: The purpose of this study is to explore the relationship between water environmental factors and the abundance and distribution of white shrimp on Pagurawan Beach.

Q: What are the environmental factors that were studied?

A: The environmental factors that were studied include water temperature, depth, brightness, current speed, pH, dissolved oxygen, and salinity.

Q: What was the sampling method used in this study?

A: The sampling method used in this study was a mini purse seine made of polyfilamen nylon material. The net had a length of 10 meters and a diameter of a 3 meter mouth opening.

Q: How often was sampling done?

A: Sampling was done every 30 days starting from 08.00 to 18.00 WIB.

Q: What was the average abundance of white shrimp on Pagurawan Beach?

A: The average abundance of white shrimp on Pagurawan Beach was 8 individuals per square meter (ind/m²).

Q: What was the distribution pattern of white shrimp on Pagurawan Beach?

A: The distribution pattern of white shrimp on Pagurawan Beach was found to be group distribution, indicating that environmental factors, such as water depth and salinity, have a significant effect on the concentration of the shrimp population.

Q: What was the growth pattern of white shrimp on Pagurawan Beach?

A: The growth pattern of white shrimp on Pagurawan Beach was found to be negative alometric, indicating that the weight gain of shrimp is not comparable to the length of carapace length.

Q: What are the implications of this study?

A: The results of this study are expected to provide useful information for the management of fisheries resources at Pagurawan Beach as well as for further research on aquatic ecosystems in North Sumatra.

Q: What are the recommendations for future research?

A: Further research is needed to investigate the relationship between environmental factors and the abundance and distribution of white shrimp in other regions. Additionally, studies on the impact of human activities on the aquatic ecosystem and the development of sustainable management strategies are necessary to maintain the health of the ecosystem.

Q: What are the limitations of this study?

A: This study has some limitations, including the limited sample size and the lack of data on other environmental factors that may affect the abundance and distribution of white shrimp.

Q: What are the future directions for this research?

A: Future studies should aim to investigate the relationship between environmental factors and the abundance and distribution of white shrimp in other regions. Additionally, studies on the impact of human activities on the aquatic ecosystem and the development of sustainable management strategies are necessary to maintain the health of the ecosystem.

Q: What are the references used in this study?

A: The references used in this study include:

[1] De Man, J. G. (1888). Report on the Crustacea of the Siboga Expedition. Leiden: E.J. Brill.
[2] Holthuis, L. B. (1959). The Shrimps and Prawns of the World. Leiden: E.J. Brill.
[3] Pérez Farfante, I., & Kensley, B. (1997). Penaeoid and Sergestoid Shrimps and Prawns of the World. Leiden: E.J. Brill.

Q: What is the appendix of this study?

A: The appendix includes additional information on the research methods, data analysis, and results. It also includes tables and figures that support the findings of the study.