Flaring device for bivalve molluscs

Abstract

The invention relates to the technical field of mechanical tools for marine products, and provides a flaring device for bivalve molluscs. The flaring device for the bivalve molluscs comprises a first pliers handle and a second pliers handle, wherein the first pliers handle and the second pliers handle are connected together in a crossed mode through a hinge portion, a first pliers head and a second pliers head are arranged at the end, close to the hinge portion, of the first pliers handle and the end, close to the hinge portion, of the second pliers handle respectively, the first pliers head and the second pliers head are used in cooperation in an attached mode to form a head portion mechanism used for carrying out flaring motion, the head portion mechanism is used for being inserted into a gap formed between the two valves of each bivalve mollusc in the natural extension state, a limiting part and a flaring force application part are arranged at the position, far away from the hinge portion, of the first pliers handle and the position, far away from the hinge portion, of the second pliers handle respectively, and the two ends of the flaring force application part are fixedly connected to the first pliers handle and the second pliers handle respectively. According to the flaring device for the bivalve molluscs, a marine product worker can conveniently carry out living body sex discrimination on the bivalve molluscs and carry out living body observation of the gonad development maturity on the bivalve molluscs, the artificial spawning time can be mastered accurately, inbreeding hybridization and distant hybridization of the bivalve molluscs and establishment of families can be facilitated, and especially, group hybridization and mass production can be facilitated.

Description

technical field [0001] The invention belongs to the technical field of mechanical tools, in particular to a bivalve mollusk mouth expander. Background technique [0002] Most bivalve molluscs are dioecious, and hermaphrodite species are also quite common. Although shellfish are divided into dioecious and hermaphroditic, this distinction is not constant. Dioecious species can undergo sex reversal and switch sexes, and hermaphroditic species can also become dioecious due to sex change. Among dioecious species, except for a few species that are dioecious, that is, the secondary sexual characteristics of the two sexes are relatively distinct, and males and females can be distinguished according to external sexual characteristics, most of the dioecious shellfish are dioecious, that is, the secondary sexual characteristics of the two sexes are different. Obviously, it is difficult to identify male and female based on external sexual characteristics. Due to the difficulty in iden...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a bivalve mollusk mouth expander, which aims to solve the problem that the existing technology cannot simply and effectively carry out sex identification and live observation of the gonad development of bivalve molluscs, so that seafood workers can carry out double-valve mollusk expansion. Close and distant hybridization of shellfish, family establishment, especially group hybridization and large-scale production have encountered great difficulties

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