Download Advances in Marine Biology, Vol. 43 by Alan J. Southward, Craig M. Young, Lee A. Fuiman PDF

By Alan J. Southward, Craig M. Young, Lee A. Fuiman

Quantity forty three is an eclectic quantity with stories on ecology and biogeography of marine parasites; fecundity: features and position in life-history concepts of marine invertebrates; the ecology of Southern Ocean Pack-ice; and organic and distant sensing views of pigmentation in coral reef organisms. Advances in Marine Biology used to be first released in 1963. Now edited via A.J. Southward (Marine organic organization, UK), P.A. Tyler (Southampton Oceanography organization, UK), C.M. younger (Harbor department Oceanographic establishment, united states) and L.A. Fuiman (University of Texas, USA), the serial publishes in-depth and up to date stories on quite a lot of themes on the way to attract postgraduates and researchers in marine biology, fisheries technology, ecology, zoology, oceanography. Eclectic volumes within the sequence are supplemented by means of thematic volumes on such subject matters as The Biology of Calanoid Copepods . Key positive aspects * AMB first released 1963 * This quantity provides a range of experiences at the biology of lesser-known taxa of the phylum Mollusca, together with: * The as a rule diminutive protobranch bivalves * The slug-like shelled opisthobranchs * The hugely really good and evolutionarily complicated tusk shells * the attractive, worthwhile, but frustratingly hard-to-collect slit shells

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Advances in Marine Biology, Vol. 43

Quantity forty three is an eclectic quantity with stories on ecology and biogeography of marine parasites; fecundity: features and position in life-history ideas of marine invertebrates; the ecology of Southern Ocean Pack-ice; and organic and distant sensing views of pigmentation in coral reef organisms.

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50 KLAUS ROHDE A x Atlantic& Pacificcoasts of Canada • Antarctic • TropicalIndo-Pacific ~10 o to. ~_ o. 6 ffl x o x x x~ 4 x E xx r- x X x x x ~ x xx x ~U ~1111 • • • x x o x• x x X XX = 2 x x ~ x • x x Ln ( m e a n n u m b e r of parasites per host +1) B ~10 o t- =' Antarctic o "Deepwater"NSW ,, NorthernNSW o PacificCanada Brazil • • • Argentina • TropicalIndo-Pacific ~4 E • • e= 2 o=x~oO ii D = o . 0 I 0 / ~ i 1 1 2 3 4 5 6 7 8 Ln ( m e a n n u m b e r of parasites per host +1) Figure20 Community richness (as expressed by species richness and abundance) of metazoan endoparasites of the digestive tract of 51 teleost species (A) and of metazoan ectoparasites on the heads and gills of 105 teleost species (B).

Heap, M. and Gosper, D. (1994). A tropical assemblage of ectoparasites: gill and head parasites of Lethrinus miniatus (Teleostei, Lethrinidae). International Journal for Parasitology 24, 1031-1053, with the permission of the copyright holders, Elsevier Science. testing the effect of pollution on ectoparasites of freshwater roach, found that the two most common species of Dactylogyrus preferred the same microhabitats on the gills and showed no competition, which was confirmed by increased overlapping indices with increasing abundances between the species.

Geets et al. (1997) found for all species of gill parasites that niche breadth was independent of the presence of other species, but increased with their own abundance in three of them, suggesting that interspecific effects are less important than intraspecific factors. They provide indirect evidence for the mating hypothesis of niche restriction (see above) for two gill monogeneans (highly aggregated distribution over the gill flaments). Microhabitat restriction is also found on host species that harbour only a single parasite species in a particular habitat, suggesting that microhabitat selection is genetically programmed and is not affected by competing species now, nor has it been affected by them in the evolutionary past.

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