Cara Budidaya Lobster Keramba Jaring Tenggelam

Summary

This video showcases the process of lobster farming at Pesona Bahari in Wongsorejo. The speaker explains how submerged net cages are constructed using materials like 8mm iron and then coated to prevent rusting. The method of creating secure, round cages to withstand strong currents is detailed, along with the two-layer netting system designed to protect lobsters from predators and prevent feed loss. The importance of monitoring lobster growth through sampling and proper feeding routines is emphasized. The speaker also discusses the harvesting process, with attention to size regulations and avoiding cannibalism, ensuring optimal lobster farming conditions.

Takeaways

• 😀 The lobster farming site is located in Bangsring, Wongsorejo, within the Pesona Bahari group, specifically at Grand Watudodol tourism.
• 😀 Lobster farming is done using submerged net cages (keramba jaring tenggelam), designed to withstand strong currents in the area.
• 😀 The cages are made from 8mm steel, coated with a protective layer to prevent rusting and to ensure durability in the sea.
• 😀 The round shape of the cages is intentional to reduce direct pressure from strong currents in the farming area.
• 😀 Two layers of nets are used: a fine net to prevent feed loss and a coarser net to protect lobsters from predators.
• 😀 The nets are sewn with knots to ensure that if one part of the net breaks, it won't cause further damage, keeping the lobsters safe.
• 😀 Lobster seedlings are categorized by weight, with sizes ranging from 25g to 100g, to simplify feeding and tracking growth.
• 😀 Monthly sampling is done to monitor the lobsters’ growth and ensure proper size categorization.
• 😀 Feeding is done once a day, typically in the evening, as lobsters are nocturnal and more active at night.
• 😀 Lobsters take approximately 4-5 months to reach harvest size, depending on feeding and environmental conditions.
• 😀 Legal size guidelines for harvest are followed, ensuring compliance with regulations such as the Permenkes number 12, which sets the minimum harvest size.

Q & A

What is the purpose of using round-shaped cages in lobster farming?

Round-shaped cages are used to minimize the impact of strong currents in the area. The design ensures that the water flow does not directly hit the cages, reducing the pressure from the current and making the structure more stable.

What materials are used to construct the lobster farming cages?

The cages are made from 8mm diameter steel rods, which are shaped into a circular frame. The structure is then coated with a layer of anti-corrosion material to prevent rusting.

Why is the mesh on the lobster cages layered?

The cages have two layers of mesh. The first layer is a fine mesh to retain the feed, while the second layer is a coarser mesh designed to protect the lobsters from predators and ensure they remain inside the cage.

How is the mesh stitched to ensure the cages are durable?

The mesh is stitched with knots at every junction. This ensures that if one part of the mesh is damaged, the tear does not spread, and the lobster remains safe inside the cage.

What is the purpose of the lobster cage door design?

The door is designed like a bell, ensuring that lobsters do not escape when feed is provided. The door can be closed and secured to keep the lobsters inside during feeding.

How are lobster seeds (juveniles) selected for farming?

Lobster seeds are selected based on size, with categories ranging from 25 grams to 100 grams. They are then sorted to ensure easy tracking of their growth and feeding needs.

Why is sampling necessary in lobster farming?

Sampling is done once a month to monitor the growth of the lobsters. This helps in tracking their weight gain and adjusting the feeding regime accordingly.

What is the reason for tagging lobsters with numbers?

Lobsters are tagged with numbers to ensure accurate placement in the cages. This helps in tracking their growth and makes it easier to measure their development during sampling.

How long does it take for lobsters to reach a marketable size?

It typically takes about 4 to 5 months for lobsters to reach a size between 70 to 150 grams, depending on the feeding system and other environmental factors.

What is done during the harvest process in lobster farming?

During harvest, the cages are lifted to prevent any lobsters from injuring themselves. The lobsters are then selected based on their size, with the target size being around 150 grams, as specified by regulations.