01Single-line hairtail vs lure hairtail, basic differences
Single-line rigs use a large main braided line (PE #4‑6) and a light leader (carbon #8‑12) to explore deep water layers directly. In contrast, lures employ artificial baits such as metal spoons and plastic minnows to quickly search the surface and mid‑water layers.
The efficiency of both methods varies greatly with tide and depth.
Single-line rigs target depths of 30‑80 m and water temperatures of 16‑22 °C, following the vertical movement of fish for continuous bites. Lures move rapidly at the surface during bright dawn and dusk tides, attracting schools.
Therefore, even within the same season, choosing the rig that matches the target depth and time of day determines success.
02Optimal depth·temperature·tide for August hairtail
August marks the early part of the hairtail peak season (September‑December); water temperatures in the South Sea and Jeju waters stay at 18‑22 °C. At this time, the 40‑70 m depth range is where hairtail most densely inhabit. When temperature drops below 16 °C, hairtail move to shallower waters, reducing the efficiency of single-line rigs.
The most active tide period is within two hours before and after sunrise and sunset. Especially from one hour before sunset to thirty minutes after, the water cools and hairtail rise near the surface, responding to lures.
For night work, using LED lighting and maintaining clear sight are essential, and wearing protective gloves is recommended to prevent tooth injuries.
03Rig points for single-line and lure respectively
For single-line rigs, attach a 2‑4 kg weight to the main braided line to set depth precisely. Adjust the leader to 2‑3 m so that hairtail bites are transmitted quickly. If there is current, cast against the flow to scan the water layer.
For lure rigs, mount a 10‑30 g spoon on a 1‑2 m leader and set retrieve speed between 1.5‑2.5 m/s. The brighter the tide, the faster the spin to trigger visual responses. In strong wind, lift the lure slightly outward to minimize wave action.
- If the lure weight is too heavy, it will not stay on the surface.
- Underestimating depth and casting only in shallow water yields almost no bites.
- Using single-line at night without lighting increases injury risk due to poor visibility.
04Safety and environmental considerations
During night work, wear LED lights and a reflective vest for visibility. Hairtail’s sharp teeth pose a high risk of wrist and finger injuries, so protective gloves and wrist guards must be worn.
To prevent slipping on deck, lay down a waterproof mat and keep the deck tidy.
- When water temperature stays at 16‑22 °C, single-line rigs are advantageous
- Lures are most efficient 1‑2 h before and after sunrise/sunset
- Night lighting is essential; failure to wear safety gear may result in a fine
"Hairtail are sensitive to water temperature changes; when temperature falls below 16 °C they move to shallow waters."