TY - JOUR
T1 - Female gonad morphology of centropages furcatus (dana, 1852)
AU - Ceballos-vazquez, B. P.
AU - Hernandez-trujillo, S.
AU - Esqueda-escarcega, G. M.
AU - Arellano-martinez, M.
N1 - Funding Information:
This research was funded by projects SIP 20070221and CONACyT-68597. We thank all the scientific and supporting staff who participated in zooplankton collection activities. All authors received grants from SIBE (COFAA). B.P. Ceballos-Vázquez, S. Hernández-Trujillo, and M. Arellano-Martínez also received grants from EDI (IPN) and SNI-CONACYT. Thanks to María Elena Sánchez-Salazar, M.Sc., for her editorial contribution to the English manuscript.
PY - 2009
Y1 - 2009
N2 - Centropages furcatus is a dominant species of the planktonic community in the Ensenada de La Paz, Baja California Sur, Mexico. Little is known about gonad morphology and maturation of this species, and that knowledge is key for understanding the reproductive activity and the mode of eproduction of C. furcatus. The histological analysis revealed that, similar to most calanoid copepods, the sac-shaped ovary of C. furcatus is located dorsally to the centre of the prosoma; oocyte maturation takes place outside the ovary. Besides, in agreement with the Calanus-type gonad, most oocyte development stages occur simultaneously, and frequently many oocytes mature synchronously. However, the spatial location of oocytes differs from the one described for the Calanus-type gonad. In C. furcatus, previtellogenic oocytes are arranged in an outer layer spreading longitudinally and across the circumference of the prosoma; oocyte growth and maturation takes place radially towards the b dy centre. For this reason, a new gonad morphology type is hereby proposed for C. furcatus, naming it furcatus-type.
AB - Centropages furcatus is a dominant species of the planktonic community in the Ensenada de La Paz, Baja California Sur, Mexico. Little is known about gonad morphology and maturation of this species, and that knowledge is key for understanding the reproductive activity and the mode of eproduction of C. furcatus. The histological analysis revealed that, similar to most calanoid copepods, the sac-shaped ovary of C. furcatus is located dorsally to the centre of the prosoma; oocyte maturation takes place outside the ovary. Besides, in agreement with the Calanus-type gonad, most oocyte development stages occur simultaneously, and frequently many oocytes mature synchronously. However, the spatial location of oocytes differs from the one described for the Calanus-type gonad. In C. furcatus, previtellogenic oocytes are arranged in an outer layer spreading longitudinally and across the circumference of the prosoma; oocyte growth and maturation takes place radially towards the b dy centre. For this reason, a new gonad morphology type is hereby proposed for C. furcatus, naming it furcatus-type.
KW - Calanoid
KW - Copepod
KW - Gonad type
KW - Histology
KW - Oocyte
KW - Reproduction
UR - http://www.scopus.com/inward/record.url?scp=70449361838&partnerID=8YFLogxK
U2 - 10.1080/07924259.2009.9652293
DO - 10.1080/07924259.2009.9652293
M3 - Artículo
SN - 0792-4259
VL - 53
SP - 81
EP - 85
JO - Invertebrate Reproduction and Development
JF - Invertebrate Reproduction and Development
IS - 2
ER -