OLR(1979)26(12) E. Biological Oceanography 797

79:6131 Palma G., Sergio and Jaime Meruane Z., 1975.

Aspectos ecol6gicos y crecimiento de Pleuro- brachia pileus (Ctenophora) en la regidn de Val- paraiso. [Ecology and growth of Plenrobrachia pileus, Ctenophora, in the Valparaiso, Chile, area.] Investnes mar., Valparaiso, 6(2): 25-39.

Temporal distributions indicate periods of enhanced richness in ear ly spring and mid-summer; neritic stations have greater densities than the offshore station; and monthly size distributions reveal a correlation between body size and environmental temperature. (rio)

79:6132 Parsons, T. R. and C. A. Bawden, 1979. A controlled

ecosystem for the study of the food requirements of nmphipod populations. Estuar. coast, mar. Sci., 8(6): 547-553.

Amphipod populations limited in their food supply may collapse due to inability to reproduce, even though individual organisms grow satisfactorily. Biomass and mortality were inversely related; biomass and ecological efficiency were directly related. Food maintenance requirements for populations were higher than those calculated from respiration measurements. Institute of Oceanography, University of British Columbia, Vancouver, B.C., Canada.(mjj)

79:6133 Peterson, W. T., C. B. Miller and Anne Hutchinson,

1979. Zonation and maintenance of copepod pop- ulations in the Oregon upwelliog zone. Deep-Sea Res., 26(5A): 467-494.

Each of the five species of copepods which dominate the zooplankton is distributed in a different pattern in the upwelling zone. Population maintenance mechanisms, distributions of chlorophyll and nutrients, and upwelling circulation patterns are discussed. A two-cell, zonal circulation pattern during active upwelling is deduced from plankton distributions. School of Oceanography, Oregon State University, Corvallis, Oreg. 97331, U.S.A.(mjj)

79:6134 Rosenberg, Rutger and J. D. Costlow Jr., 1979.

Delayed response to irreversible non-genetic adap- tation to salinity in enrly development of the brachyuran crab Rhithropanopens harrisii, and some notes on adaptation to temperature. Ophelia, 18(1): 97-112.

An increase in salinity from 10 or 20% 0 to 35% 0 during the zoeal stages resulted in increased mortality in subsequent pre-metamorphic and metamorphic moults, and also caused abnormal development. Thus (high salinity) ocean water may prevent successful larval dispersal between estuaries. Crab embryos

acclimated to high temperature tolerated high temperature through later larval stages. Fiskeristyrelsen, Havsfiskelaboratoriet, S-45300 Lysekill, Sweden. (mjj)

79:6135 Salemaa, Heikki, 1979. Ecology of idoten spp.(lso-

poda) in the northern Baltic. Ophelia, 18(I): 133-150.

The littoral belts of two northern Baltic rocky shore habitats were examined to determine the population dynamics and breeding biology of three isopods. I. baltica was dominant in both habitats; and I. chelipes and I. granulosa were present although not coexisting. Factors affecting distribution and geographical variation were investigated. Department of Genetics and Tv/irminne Zoological Station, University of Helsinki, Finland. (sir)

79:6136 Sandifer, P. A. and T. I. J. Smith, 1979. Possible

significance of variation in the larval development of palaemonid shrimp. J. expl mar. Biol. Ecol., 39(1): 55-64.

Marked variation in the number of larval instars and the duration of larval development may help to ensure dispersal of sibling larvae, increase recruitment to parental populations, and increase the successful colonization of freshwater environments. Larval development of Macrobrachium rosenbergii, Palae- monetes pugio and P. vulgaris was studied in labora- tory culture. Marine Resources Research Institute, P.O. Box 12559, Charleston, S.C. 29412. (mjj)

79:6137 Saunders, W. B. and Claude Spinosa, 1979. Nautilus

movement and distribution in Palau, western Caroline Islands. Science, 204(4398): l 199-1201.

An extensive and unusual dispersal potential of Nautilus is documented via a 14-month tag-release- recapture experiment in the Western Carolines. Living Nautilus exhibited long-term movements of up to 150 km; post-mortem drift of its buoyant shell reached 1000 kin. These findings corroborate and help explain the cosmopolitan distribution of Paleozoic and Mesozoic cephalopods. Department of Geology, Bryn Mawr College, Bryn Mawr, Pa. 19010, U.S.A. (izs)

79:6138 Shino, S. M., 1978. Tanaidacen collected by French

scientists on board the survey ship Marion- Dufresnc in the regions around the Kerguelen Islands and other subantarctic islands in 1972,

'74, "75, "76. Sci. Rept Shima Marineland, 5:123 pp.

Nineteen species of tanaidaceans from the Southern Ocean are described in detail of which seven are newly