Low-dam high-net swimming crab cultivation water storage pond having self-discharging function

Abstract

The invention discloses a low-dam high-net swimming crab cultivation water storage pond having a self-discharging function. A water storage pond space is constructed according to characteristics of swimming crabs, the rectangular water storage pond is formed by being surrounded by a pond dyke built on a beach, the upper end and the lower end of the water storage pond are arranged in the same direction as the tiding direction, an annular ditch is disposed between the periphery of a beach face and the pond dyke, the pond dyke at the upper end and / or the lower end of the water storage pond is provided with an overflow dam, and the beach face is internally at least provided with one middle ditch in the same as the tiding direction. The water storage pond comprises an ingestion site, an inhabiting site and a hibernating site, pollution discharge is performed by utilizing tidal energy, an all-dimensional ecological environment space for inhabitation, oversummer and overwintering and the like of the swimming crabs in a juvenile crab bearing period, a growth period, a mating period and a fattening period, an energy-saving self-discharging ecosystem is formed, various beach resources and natural energy are fully utilized, cannibalism is reduced, diseases are prevented, the survival rate is improved, the quality and yield are improved, and the ecological cultivation and healthy development of the beach are promoted.

Description

technical field [0001] The invention relates to the technical field of tidal flat ecological breeding, in particular to a low-dam and high-net swimming crab breeding storage pond with self-drainage function. Background technique [0002] Although our country has a vast ocean, the aquatic resources continue to decline. However, people's demand for aquatic resources continues to rise, which poses challenges to social development. Offshore fishing continued to reduce production year after year, inner pond aquaculture was basically saturated, and tidal flat aquaculture stagnated. Tidal flats are the source of the ocean, with a vast area and rich resources. The focus is on the balance between utilization and protection. In the 1990s, policies guided the development of the marine economy, and tidal flat farming was quickly erected with low dams and high nets. However, due to immature technical conditions, natural disasters and environmental pollution, the majority of farmers suff...

AI Technical Summary

Problems solved by technology

In the 1990s, the policy guided the development of the marine economy, and tidal flat farming quickly stood up with low dams and high nets. However, due to immature technical conditions, natural disasters and environmental pollution, the majority of farmers suffered serious losses.

The reasons: 1. There is no anti-typhoon method for the fence; 2. It is easy to leak water when building ponds on tidal flats, and the mud dams of pond embankments are easy to be washed away, and the phenomenon of leaky ponds and inverted ponds occurs from time to time; 3. Especially the unreasonable structure and layout of reservoirs cause tidal current Poor flow, serious silt in the pond, resulting in high morbidity rate of cultured products, serious cannibalism, breeding yield (portunus crab yield is between 5-50 catties per mu), and the quality is small and thin, most of which are diseased crabs

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