Egg production in Eurypodius latreillei Guérin, 1828 (Decapoda: Majidae) in the Strait of Magellan, southern Chile

Autor:	R. Soto, E. Quiroga, N. Navarrete, Mauricio Vargas, Ernst F. Kilian, Ingo S. Wehrtmann
Rok vydání:	1999
Předmět:	Spider animal structures biology Ecology Decapoda Northern Hemisphere Aquatic Science Oceanography biology.organism_classification Brood Majidae Reproductive biology Maternal body Southern Hemisphere
Zdroj:	Scientia Marina. 63:333-337
ISSN:	1886-8134 0214-8358
DOI:	10.3989/scimar.1999.63s1333
Popis:	3), and the embryo volume increase during the incubation period was 32 %. Brood mortality was substantial (83 %), and since egg volume increase could not compensate for the egg loss, average egg mass volume decreased considerably during embryogenesis. The average brood mass at laying accounted for 13 % of the maternal body mass (on a wet mass basis), and this value coincides with previous findings concerning energy allocation for egg production in other brachyuran crabs. In general, our data regarding E. latreillii correspond well with those from spider crab species inhabiting the northern hemisphere. The large egg size of E. latreillii compared with majids from other geographical regions may be an indication of a latitudinal gradient in the reproductive biology of majid crabs. Future studies with spider crabs from the southern hemisphere are desirable to substantiate this assumption.
Databáze:	OpenAIRE
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