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Feeding and reproductive behaviour and their effect on catchability of the spanner crab Ranina ranina by D. G. Skinner; B. J. Hill is a Environmental Science article available to read on EtoBox.

What is Feeding and reproductive behaviour and their effect on catchability of the spanner crab Ranina ranina about?

The behaviour of 16 adult (8 male and 8 female) spanner crabs (Ranina ranina), collected off southern Queensland, Australia, was monitored continuously in captivity by closed-circuit television for fifteen months from September 1982. Spanner crabs spent most of the time buried in the substrate, emerging mainly only when food became available. They remained emerged for twice as long on feeding days as on days without food. Females responded significantly faster than males to the presence of food. Response was slowest in October and November. There was no correlation between temperature and response time. The average feeding time was 2.0rain (SE=0.12), with no significant difference between males and females. Crabs without food were aggressive towards crabs with food, which sometimes led to fighting and wounding. These interactions also could result in food being transferred from one individual to another. When males interacted, food was transferred more often than when either females, or males and females interacted, Around moulting, male crabs did not feed for 52 d (SE = 9.0) and females for 22 d (SE = 2.2). This habit would reduce the frequency with which newly moulted crabs are c

Who reads Feeding and reproductive behaviour and their effect on catchability of the spanner crab Ranina ranina?

Author

D. G. Skinner; B. J. Hill

Publisher

Springer-Verlag; Springer Verlag; Springer Science and Business Media LLC (ISSN 0025-3162)

Published

1987

Language

EN

Field

Environmental Science (Physical Sciences)