BODY-SIZE AND FREQUENCY OF PONTONIA-MARGA RITA (CRUSTACEA, PALAEMONIDAE) ASSOCIATED WITH PINCTADA-MAZATLANICA (BIVALVIA, PTERIIDAE), IN COSTA-RICA

Authors
PENA JC LOPEZ YS
Citation
Jc. Pena et Ys. Lopez, BODY-SIZE AND FREQUENCY OF PONTONIA-MARGA RITA (CRUSTACEA, PALAEMONIDAE) ASSOCIATED WITH PINCTADA-MAZATLANICA (BIVALVIA, PTERIIDAE), IN COSTA-RICA, Revista de biologia tropical, 44(2), 1996, pp. 915-917
Citations number
12
Categorie Soggetti
Biology
Journal title
Revista de biologia tropical → ACNP
ISSN journal
00347744
Volume
44
Issue
2
Year of publication
1996
Pages
915 - 917
Database
ISI
SICI code
0034-7744(1996)44:2<915:BAFOPR>2.0.ZU;2-F
Abstract
Size and frecuency observations of Pontonia margarita (Smith 1869) fro m the paleal cavity of Pinctada mazatlanica (Hanley 1956), were made f rom March to August 1993. The caparace length of P. margarita was 4.00 -15.25 mm, and 2.75-11.00 mm for females and males, respectively. Ovig erous females were found in all months with highest percentages in Apr il and July (83.3 and 100% respectively). The relationships caparace l ength-weight were W = 1.330 x 10(-3) LC2.8574 for males and W = 2.060 x 10(-3) LC2.509 for females. The mean sex-ratio was 1.0 male : 1.15 f emales.