TY - JOUR
T1 - El Niño 1992-93 phenomena: Its influence on the reproductive biology of Tagelus dombeii
AU - Ishiyama, Víctor
AU - Shiga, Betty
PY - 1998/1/1
Y1 - 1998/1/1
N2 - © Facultad de Ciencias Bioĺgicas UNMSM. The El Niño 1992-93 phenomena incremented the number of matures males and females, and induced the spawning of Tagelus dombeii, due to the rise of the sea water temperature. The sex proportion was 1.2 :1.0, (female:male). In the accelerated gametogenesis, we differentiated : oogonias and oocytes (previtelogenesis), ovocytes I (primary vitelogenesis) and ovocytes 11 (secondary vitelogenesis), The maturity scale, with high percentage of matures specimens and in spawning, and scarce immaturity and in development, were classificated in: non differentiated, immaturity, mature and spawn.
AB - © Facultad de Ciencias Bioĺgicas UNMSM. The El Niño 1992-93 phenomena incremented the number of matures males and females, and induced the spawning of Tagelus dombeii, due to the rise of the sea water temperature. The sex proportion was 1.2 :1.0, (female:male). In the accelerated gametogenesis, we differentiated : oogonias and oocytes (previtelogenesis), ovocytes I (primary vitelogenesis) and ovocytes 11 (secondary vitelogenesis), The maturity scale, with high percentage of matures specimens and in spawning, and scarce immaturity and in development, were classificated in: non differentiated, immaturity, mature and spawn.
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U2 - 10.15381/rpb.v5i1.8319
DO - 10.15381/rpb.v5i1.8319
M3 - Article
SN - 1561-0837
SP - 35
EP - 45
JO - Revista Peruana de Biologia
JF - Revista Peruana de Biologia
ER -