Sabon bincike ya nuna hakan yawan kamun kifi don amfani ya ninka abin da aka ruwaito, wanda zai iya haifar mana da matsala mafi girma fiye da yadda muke tsammani da farko.
Tsakanin 1950 da 2010, FAO, rashin sanin cikakken farashi da rashi adadin na kifin da aka kama a cikin tekunan duniya a rabi, a cewar wani sabon littafi mai suna Global Atlas Of Marine Fisheries, wanda ya samo asali ne daga binciken shekaru goma.
Maimakon yawan kamun kifi ya kai kololuwar Tan miliyan 86 a 1996, lambar a halin yanzu tan miliyan 130. Wannan yana nufin raguwar lambobi sosai na wadannan nau'ikan halittun tun daga tsakiyar shekarun 90, har ma fiye da yadda masana kimiyya suke tsammani.
A zahiri, ya fi haka sau uku ƙasa fiye da yadda aka kiyasta, tunda an sami raguwar tan miliyan 1,2 na kamawa a kowace shekara wanda ya wuce.
Daniel Pauly, babban mai bincike a Jami'ar British Columbia, kuma daya daga cikin marubutan biyu na littafin da aka ambata, ya tabbatar da cewa idan kamun ya ci gaba da raguwa, abin da zai faru shi ne cewa za mu sami karancin kifi a cikin teku. Kuma a sama, muna da canjin yanayi, abin da ke kara dagula lamura, musamman a yankuna masu zafi.
Abin da ke faruwa shi ne kuma nau'ikan ƙananan kamun kifi iri uku ne waɗanda ba a saka su cikin waɗannan rahotannin a cikin shekarun da suka gabata ba, kamar su abinci, shakatawa da ƙere-ƙere. Ta hanyar barin duk waɗannan abubuwan, kamar kamun kifi na doka, wanda zai ɗauki ɗayan cikin kowane kifi 5 da aka kama, kun yi lahani ƙwarai da gaske game da ƙididdigarku.
Wata matsalar ita ce tekunan da ke duniya baki daya sun mamaye yawancin zafi mai yawa na yanayi a cikin 'yan shekarun nan. Dole kifin ya matsa zuwa sandunan a lokaci guda da canjin yanayi na ci gaba da bugawa, barin ƙasashe a cikin yankuna masu zafi, ba tare da tushen asalin abincin su ba.
Ofaya daga cikin abubuwan da za'a iya fitarwa shine bar shi ya sake daidaitawa yawan kamun kifi a cikin teku na rage kamun kifi, wanda zai iya cimma babban bambanci, karin juriya ga canje-canje har ma da sauyin yanayi.