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. ^[1] Imyaka ishobora kugenwa no kubara impeta ingano y'amafi, otoliths, ibice byambukiranya umugongo wubwoko bw'ibinyabuzima bifite umugongo mwinshi nka triggerfish, ^[2] cyangwa amenyo yubwoko buke. ^[3] Buri buryo bufite ibyiza n'ibibi. Umunzani w'amafi uroroshye kuwubona, ariko urashobora kwizerwa mugihe umunzani waguye kumafi nudushya twakuze mu mwanya wabo. ^[4] 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, ^[2] ariko kuyabona bisaba kwica amafi. ^[5] Nanone, otoliths ikenera byinshi kwitegura mbere yo gusaza. ^[4]

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. ^[6]

Reba kandi

Kumenya gusaza mu mafi
Piramide yabaturage
Imbaraga z'uburobyi

Reba

↑ : 220–227. {{cite journal}}: Cite journal requires |journal= (help); Missing or empty |title= (help)
↑ ^2.0 ^2.1 O’Sullivan, Sandra (2007). Fisheries Long Term Monitoring Program. Brisbane, Australia: Queensland Department of Primary Industries and Fisheries.
↑ 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.
↑ ^4.0 ^4.1 "MANUAL OF FISHERIES SCIENCE Part 2 - Methods of Resource Investigation and their Application". www.fao.org. Retrieved 2018-03-24.
↑ 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.
↑ 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.

[1] : 220–227. {{cite journal}}: Cite journal requires |journal= (help); Missing or empty |title= (help)

[:0-2] 2.0 ^2.1 O’Sullivan, Sandra (2007). Fisheries Long Term Monitoring Program. Brisbane, Australia: Queensland Department of Primary Industries and Fisheries.

[3] 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.

[:1-4] 4.0 ^4.1 "MANUAL OF FISHERIES SCIENCE Part 2 - Methods of Resource Investigation and their Application". www.fao.org. Retrieved 2018-03-24.

[5] 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.

[6] 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.

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