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7/14/2009 5:02:31 PM
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5/20/2009 10:26:17 AM
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UCREFRP
UCREFRP Catalog Number
7787
Author
Desert Fishes Council.
Title
Proceedings of the Desert Fishes Council Volume XXV, 1993 Annual Symposium.
USFW Year
1993.
USFW - Doc Type
D. A. Hendrickson, ed. November, 10 -14.
Copyright Material
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ABSTRACTS OF PRESENTATIONS <br />a <br />GASPAR DILLANES, M.T. ; DE LA Luz, G. lmliltnlo de Hiologfa, UNAM, Depart-ento de aiologfa <br />Reproductive aspects of Girardinichthys viviparus (Bustamante, 1837) <br />in Nabor Carillo Lake, Texcoco, M6xico <br />Aspectos reproductivos de Girardinichthys viviparus (Bustamante, 1837) <br />en el Lago Nabor Carillo, Texcoco, M6xico <br />KEYWORDS: Valle de M6xico; Mexico; Goodeidae; vivipara; viviparity; reproduction; reproduction <br />ABSTRACT <br />(POSTER PRESENTATION) This paper presents information about reproductive aspects of Girardinichthys <br />viviparus, a viviparous and endemic species of the Valley of Mexico. Its distribution has been affected by the <br />decrease in water bodies due to the growth and urbanization of Mexico City. <br />RESDMEN <br />(PRESENTADO COMO CARTEL) Se presenta informacion sobre algunos aspectos reproductivos de <br />Girardinichthys viviparus, una especie vivipara y end6mica del Valle de M6xico, la cual ha sido afectada en su <br />distribuci6n por la disminuci6n de cuerpos de agua debido al crecimiento y urbanizac16n de la Cd. de M6xico. <br />WEISS, S.'; MAUGHAN, O.E. Arizona Cooperative Fish and Wildlife Research Unit, University of Arizona, Tucson, AZ <br />Use of the Paria River by flannelmouth sucker <br />Aprovechamiento del Rio Paria por el matalote boca de franela <br />KEYWORDS: Paria River; Colorado River; Arizona; flannelmouth sucker; length frequency; spawning; distribution. <br />CLAVES: Rio Paria; Rio Colorado; Arizona; matalote boca de franela; frecuencia de longitud; desove; distribuci6n <br />ABSTRACT <br />Flannelmouth sucker, Catostomus latipinnis, from spawning runs (Spring 1992,1993) in the Paria River <br />averaged 478 mm (n=246) total length. No fish were under 380 mm total length. This average length was <br />significantly greater (p <0.001) from that of spawning fish sampled from this location in 1981 (425 rnm, n=286). <br />Spawning appeared to be episodic in 1992 but protracted in 1993. In both years, spawning occurred throughout the <br />lower 10 kilometers of the Paria. Young-of-year disappeared from the Paria shortly after hatching in 1992 but no <br />young-of-year were seen in 1993. <br />Flannelmouth suckers were found at the confluence of the Paria and Colorado Rivers throughout the year but <br />did not enter the Paria River above the confluence except to spawn. There were more flannelmouth suckers in the <br />confluence after dark than during the day. <br />A total of 886 flannelmouth suckers from the Paria River were PIT tagged. The recapture rate during our <br />sampling was approximately 7 %. Recaptures from other studies were originally tagged as far as 143 kin downstream <br />from the mouth. <br />RES UMEN <br />Durante ]as temporadas de desove (Primavera, 1992, 1993) en el Rio Paria, el Matalote Catostomus latipinnis <br />promedio 478 mm (n=246) de longitud total. No hubo peces con menos de 380mm de longitud total. Esta longitud <br />promedio fue sign 1ficativamente mss grande (p<0.001) a la de peces muestreados en esta localidad durante la <br />temporada de desove de 1981 (425 mm, n=286). El desove aparento ser episodico en 1992 pero prolongado en <br />1993. En ambos anos el desove ocurri6 a traves de diez kilometers mss bajos del Rio Paria. Los juveniles de ano <br />desaparecieron del Paria poco despu6s de ]a ecloc16n en 1992 pero no fueron vistos juveniles de afio en 1993. <br />Se encontraron matalotes en la confluencia del rio Parfa y el Rio Colorado durante todo el aho pero no entro <br />al rio Paria por arriba de la confluencia excepto para desovar. Se observaron mas matalotes en la confluencia al caer <br />la noche que durante el dfa. <br />Un total de 886 matalotes del rio Paria fueron etiquetados con marcas PIT. La taza de recaptura durante el <br />muestreo fue aproximadamente 7 %. Recapturas de otros estudios fueron originalmente etiquetados tan lejos como <br />a 143 km arroyo abajo desde la boca. <br />28
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