New PDF release: Advances in Marine Biology, Vol. 53

By D.W. Sims

ISBN-10: 012374119X

ISBN-13: 9780123741196

Advances in Marine Biology used to be first released in 1963. Now edited by way of David W. Sims (Marine organic organization, UK), the serial publishes in-depth and updated experiences on quite a lot of themes that allows you to entice postgraduates and researchers in marine biology, fisheries technological know-how, ecology, zoology, oceanography. Eclectic volumes within the sequence are supplemented via thematic volumes on such themes as The Biology of Calanoid Copepods and Restocking and inventory Enhancement of Marine Invertebrate Fisheries . * New details at the offspring dimension in marine invertebrates * Discusses vital details at the social constitution and techniques of delphinids * greater than 250 pages of the newest discoveries in marine technological know-how

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1978) showed that salinity, temperature and food availability can all strongly affect the size (mass) of eggs produced by Mytilus edulis. , 2004), but not in others (Lewis and Choat, 1993). Our own studies have shown that when the bryozoan B. neritina suffers a simulated predation event, colonies reduce the size of their offspring (and therefore offspring fitness) dramatically (Marshall and Keough, 2004b). This may be to increase the colony’s ability to recover (Marshall and Keough, 2004b). Generally, offspring size is often positively correlated with maternal resource state, but the effects are variable and more work is needed.

This may be because the influence of egg size on the pre-feeding period is actually much larger than has previously been assumed, potentially balancing out (or perhaps even overcoming in the case of polychaetes) the effects of egg size on the length of the feeding period. 3. Entire planktonic period: Intraspecific comparisons The number of studies on feeding larvae that examine the effect of egg size on developmental time within species is severely limited. Bertram and Strathmann (1998) found a small effect of maternal source habitat (and thus egg size) on the developmental rate of larvae of the urchin Strongylocentrotus droebachiensis fed in the laboratory.

1987) found a strong, positive correlation between egg size and planktonic period across 36 species of non-feeding asteroid larvae. 2. Intraspecific comparisons There are very few examinations of the intraspecific effects of offspring size on developmental time or planktonic period in species with non-feeding larvae. Isomura and Nishimura (2001) found that larger larvae had longer lifetimes (measured as the time from the free-swimming stage to when the larvae died and therefore probably exceeds the time taken to become metamorphically competent) than smaller larvae within three species of pocilloporid corals.

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Advances in Marine Biology, Vol. 53 by D.W. Sims

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