Te rokiroki makariri o ngā kaimoana

Ko te rokiroki matao o te kai moana e whakamahia ana mō ngā hua wai, ngā kaimoana, me ētahi atu.

Kāore te awhe pāmahana o ngā momo rokiroki matao kai moana i te ōrite, engari ko te tikanga kei waenga i te -30 me te -5°C.

Te whakarōpūtanga rokiroki matao kai moana:

1. Te rokiroki makariri o ngā kaimoana

He rerekē te pāmahana o te wāhi rokiroki matao kaimoana i runga i te roa o te rokiroki:

① Ko te rokiroki makariri me te awhe hoahoa pāmahana o -5 ~ -12℃ e whakamahia ana mō te hokohoko rangitahi me te hokohoko kaimoana hou.

Ko te roanga o te rokiroki whānui he 1-2 rā. Mēnā kāore ngā kaimoana e tukuna i roto i te huringa 1-2 rā, me whakanoho ngā kaimoana ki roto i te pouaka tio tere hei whakatio tere.

② Ko te pouaka tio me te awhe pāmahana mai i te -15 ~ -20°C e whakamahia ana mō te rokiroki roa o ngā kaimoana tio mai i te pouaka tio tere. Ko te wā rokiroki whānui ko te 1-180 rā.

③ Ko ngā wāhi rokiroki makariri me ngā pāmahana e rua i runga ake nei he mea e whakamahia whānuitia ana i roto i ō tātou oranga. Ko tētahi ko te wāhi rokiroki makariri kaimoana me te awhe pāmahana hoahoa -60~-45℃. Ka taea te whakamahi i tēnei pāmahana hei penapena i ngā tuna.

Ka tīmata te tio o te wai i roto i ngā pūtau kiko tuna hei tioata i te -1.5°C, ā, ka tio te wai i roto i ngā pūtau kikokiko ika hei tioata ina eke te pāmahana ki te -60°C.

Ina tīmata te tio o te tuna i te -1.5°C~5.5°C, ka nui ake te kirikiri o te tinana pūtau o te ika, ka whakangaro i te kiriuhi pūtau. Ina rewa te tinana o te ika, ka ngaro ngāwari te wai, ka ngaro hoki te reka ahurei o te tuna, ka tino whakaiti i tōna uara.

Hei whakarite i te kounga o te tuna, ka taea te whakamahi i te whakatio tere i roto i te rokiroki matao whakatio tere hei whakapoto i te wā o te "rohe hanganga tioata hukapapa nui ake -1.5℃~5.5℃" me te whakanui ake i te tere whakatio, he mahi nui ake anō hoki tēnei i roto i te whakatio tuna.

2. Rokiroki matao tere-tio mō ngā kaimoana

Ko te rokiroki tere-tio mō ngā ika hou he mea hanga mō te wā poto hei pupuri i te hou o te hokonga kia pai ai te hoko.

Ko te roa o te wā tio tere ko te 5-8 hāora, ā, ko te awhe pāmahana ko te -25 ~ -30℃. Whakatio wawetia, kātahi ka whakawhiti ki te wāhi rokiroki matao kaimoana -15 ~ -20℃ mō te rokiroki hou.