New Thesis on Natural Fish Breeding Ground in Halda River Need to Know
New Thesis on Natural Fish Breeding Ground in Halda River Need to Know
The Halda River in Chittagong, Bangladesh, is the only natural carp breeding ground in the world. It is renowned for spawning indigenous carp species like Rohu, Catla, Mrigal, and Kalibaush. The river’s unique water quality, temperature, and tidal influence create an ideal breeding environment. Fishermen collect fertilized eggs from the river during peak breeding seasons, usually from April to June. Conservation efforts are in place to protect this vital ecosystem from pollution and illegal fishing. The Halda River plays a crucial role in sustaining Bangladesh’s freshwater fish population. Arch-Bangla the first architectural web portal of Bangladesh is now presenting a thesis project regarding this issue of Bangladesh University Student.
Project Brief:
Project Title: Conservation and Development Project of Natural Fish Breeding Ground in Halda River
Location: Hathazari,Raozan, Chittagong
Student Name: Jannatul Naiem Swarna
Studio: X (Thesis)
Studio Guide: Nurur R. Khan (PhD)
Professor, Dept. of Architecture, Bangladesh University,
Farahnaz Khadiza Chowdhury
Year: 2024
University: Bangladesh University
DESIGN STATEMENT: New Thesis on Natural Fish Breeding Ground in Halda River Need to Know
Halda is the only river in the country that originates and ends in Bangladesh. Halda River is one of the most important natural carp spawning grounds in Bangladesh and has long been the major source of naturally produced carp fish for pond culture in much of the country. It originates from the hill range of Khagrachari and flows over three Upazillas of Chittagong district – Fatikchari, Hathazari and RaozanUpazillas, before finally falling into the river Karnafuli Halda is an important river from ecological perspective.
A number of hydro-morphological and environmental factors had made the Halda river a favorable place for spawning of brood carp .Approx. 250-500 fish egg collectors are dependent at the river edge. Part time collectors and helpers of 500 more on this profession. By fertilizing eggs and dying fish, Halda contributes 800 core in four phases annually to our national economy. Mother fish take refuge in the bend of the river.
Currently, these bends are being cut due to natural and man-made reasons, due to which the biodiversity of the river is now under threat. Due to lack of awareness, negligence and adequate knowledge among people, they are killing mother fish, as a result, the amount of fish egg collection is decreasing day by day, which is having an adverse effect on our national economy.
This initiative aims to raise locals’ awareness of the value of the river, urge them to protect it, boost fish egg collecting, and establish a platform for understanding the river’s biodiversity the project was chosen to attend. physical implementation of a built mass, and also think beyond and address the more critical factors of the conservation of the natural heritage, generate knowledge on an asset of this country, mold out a new economic advantage with tourist activity and a development which will help in setting a vision to the along the whole of the river edge.
Layers of the design process: New Thesis on Natural Fish Breeding Ground in Halda River Need to Know
- Hydrological layer: To allow the mother fish to take refuge there, the width of the sonaichor and kagotia ox bends has been extended in this layer.
- Ecological Layer: A forest has been designed to prevent the river erosion along the river bank. Besides locally available tree has been proposed for the forest.
- Cultural Layer: The number of fish collected will increase and the residents’ interest in working in this industry will grow if the river bend is able to recover. “HaldaPada” is a song they sing specifically when they gather the fish. These songs that have been discontinued will be resurrected if the egg collection grows.
- Economical Layer: If the river bend is able to recover, number of hatchery will increased, the amount of egg collection will rise, that will contribute n our national economics.
- As the Halda River is erosive. The river bank is designed in a layer of height .Different types of tree has been proposed here to prevent the erosion. This has been designed upon the given how erosive the Halda River is. The riverbank has a layer of height in its design. I inspired the kongjian sponge plant theory which are use a very simple tool to transform the landscape from the slope to the delta. Such as terracing, ponding, dying and ponding and islanding to create landscape -which are productive, sustainable, and beautiful and biodiversity. So that I create a Retention ponds and terraced wetlands were constructed to lower peak water flow and control seasonal rainfall. The native farming methods, which catch and hold water to convert steep slopes into fertile fields, served as the model for the terraces. Here, several tree species have been suggested to stop erosion. This was created taking into account the three seasons, as well as the highest and lowest water levels. In addition to planting trees, wood and geotextile bags have been used to support the bank. Riverside Trees and Herbs that Prevent Erosion.
Master Plan Brief: New Thesis on Natural Fish Breeding Ground in Halda River Need to Know
There are two zones in this project—the quiet zone and the noisy zone—in the master plan.The zones are divided based on their respective functions. The fish are maintained in a quiet zone since the hatchery needs a quiet place for them. Many trees have been planted in this area to provide a cool climate. The research center is situated in a public space, and access to it is provided by the road that runs beside the temple.Bangladesh is a country of rivers. People can learn about the value, necessity, and impact of rivers from the awareness center. Locals’ interest and skill levels are declining as a result of inadequate training.
Training can improve their expertise and knowledge in this field. They might have a casual conversation about the health of the river in the incubation court. The “River Port Demarcation Act of 2004” prohibits the construction of any structures 150 feet or less from the river. As a result, interpretation has been made in a calm area at the Kagotia River Bend, 600 feet from the river. People can learn about the significance and health of the river from the interpretation center. . The region has been designated as a forest this forest’s goal is to improve the surrounding ecosystem. Due erosive the Halda River The riverbank has a layer of height in its design.
Here, several tree species have been suggested to stop erosion. Considering how erosive the Halda River is, this was designed. The architecture of the riverside includes a layer of height. Here, it has been suggested that a number of tree species inhibit erosion. The three seasons and the highest and lowest water levels were considered when creating this. If individuals are still interested in training and research after visiting the interpretation center, they can visit the research and training center.IT has been design 350 feet away in the noise zone .
Fish Breeding Ground in Halda River was intended to be crossed by a bridge. An additional rationale for designing the bridge is to prevent river traffic from disturbing the fish population. Locals will not be able to access the bridge during the breeding season. The only people with access to the bridge will be the researcher, the trainer, and the egg collector. The roof of my project is inspired by the curved designs of traditional rural Bengal, crafted to safeguard the riverside area from storms and heavy rains.”
Jury Comments
The diverse ecosystems of rivers have been thoughtfully addressed, and through the conservation of riverbanks, spaces have been created for fish to spawn. By implementing forward-thinking planning, following river laws, and considering the needs of communities along the river, we can ensure the protection of every river in the country.
