Imiterere y'igihe kirekire iteganya imibereho y'amashyamba

Imiterere y'icyiciro cyuburobyi no gucunga inyamanswa nigice cyo gusuzuma abaturage. Imiterere y'imyaka irashobora gukoreshwa mu gushushanya abantu benshi harimo ibiti n amafi. Ubu buryo bushobora gukoreshwa mu guhishurira ibiza byaterwa umuriro w’amashyamba mu baturage b’ishyamba.  Imyaka ishobora kugenwa no kubara impeta ingano  y'amafi, otoliths, ibice byambukiranya umugongo wubwoko bw'ibinyabuzima bifite umugongo mwinshi nka triggerfish, O’Sullivan, Sandra (2007). Fisheries Long Term Monitoring Program. Brisbane, Australia: Queensland Department of Primary Industries and Fisheries. cyangwa amenyo yubwoko buke. Field, I.C., Meekan, M.G. & Bradshaw, C.J.A. (2009). Development of non-lethal methods for determining age and habitat use of sawfishes from northern Australia. Australia: Australian Department of the Environment and Energy.  Buri buryo bufite ibyiza n'ibibi. Umunzani w'amafi uroroshye kuwubona, ariko urashobora kwizerwa mugihe umunzani waguye kumafi nudushya twakuze mu mwanya wabo. "MANUAL OF FISHERIES SCIENCE Part 2 - Methods of Resource Investigation and their Application". www.fao.org. Retrieved 2018-03-24. Uruti rw'umugongo rushobora kutizerwa kubwimpamvu imwe, kandi amafi menshi ntabwo afite umugongo wubugari buhagije kugirango impeta zisobanutse zigaragare. Otoliths izaba yagumanye n amafi mumateka yubuzima bwayo,  ariko kuyabona bisaba kwica amafi. Lux, Fred E. "Age Determination in Fishes". Washington, DC, United States: United States Bureau of Commercial Fisheries. Available at http://spo.nmfs.noaa.gov/Fishery%20Leaflets/leaflet488.pdf. Accessed 24/03/2018. Nanone, otoliths ikenera byinshi kwitegura mbere yo gusaza. 

 Gusesengura uburobyi 
Urugero rwo gukoresha ibyiciro by'imyaka kugirango umenye ibyabaturage ni umurongo usanzwe utera inzogera ku baturage b’amafi yimyaka 1-5 bafite abaturage bake cyane kubana bafite imyaka 3. Imiterere y'ibyiciro bifite icyuho cy'ubunini bw'abaturage nk'ubwavuzwe haruguru bisobanura umwaka utera nabi mu myaka 3 ishize muri ubwo bwoko   .

Akenshi amafi mubyiciro byabato afite umubare muto cyane kuko yari muto bihagije kugirango anyure murushundura, kandi mubyukuri ashobora kuba afite abaturage bafite ubuzima bwiza. Haines, Terry A. (1990). Intensive Studies of Stream Fish Populations in Maine. Washington, D.C., USA: U.S. Environment Protection Agency, Office of Acid Deposition, Environmental Monitoring and Quality Assurance. p. 17.

 Reba kandi 

 Kumenya gusaza mu mafi
 Piramide yabaturage
 Imbaraga z'uburobyi

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