In:
Zoologia, FapUNIFESP (SciELO), Vol. 36 ( 2019-06-06), p. 1-7
Kurzfassung:
Symbiosis between decapods and mollusks provides a unique opportunity to examine some of the evolutionary strategies employed by marine invertebrates. We describe the sexual and reproductive traits of the pearl oyster shrimp, Pontoniamargarita Verril, 1869, found symbiotically inhabiting the mantle cavity of the rugose pen shell, Pinnarugosa Sowerby, 1835. Solitary males and females (ovigerous and non-ovigerous) and heterosexual pairs (with ovigerous and non-ovigerous females) were found in a total of 47 rugose pen shells collected from a sandy area with seagrass meadows on the southeastern coast of the Gulf of California, Mexico. The body length (BL) of female P.margarita was correlated with the shell volume of their rugose pen shell host. The sex ratio was female-biased (0.85M:1F). Female P.margarita were larger than their male counterparts in terms of BL, cephalothorax length (CL), and the maximum chelae length of the second pereopod (MCL). The CL and MCL were more strongly correlated for males (r = 0.70, p = 0.01). The number and volume of eggs per ovigerous female varied from 95 to 1,571 and from 5.46 ± 0.48 to 8.85 ± 0.97 mm 3 , respectively. Our results indicate polygamous behavior and social monogamy among P.margarita , and a short-term pairing system for their association with P.rugosa .
Materialart:
Online-Ressource
ISSN:
1984-4689
DOI:
10.3897/zoologia.36.e29774
DOI:
10.3897/zoologia.36.e29774.figures1-3
DOI:
10.3897/zoologia.36.e29774.figures4-6
DOI:
10.3897/zoologia.36.e29774.figure7
Sprache:
Unbekannt
Verlag:
FapUNIFESP (SciELO)
Publikationsdatum:
2019
ZDB Id:
2505776-5
SSG:
12
