558 OLR (1988) 35 (6)

88:3495 Roux, R.M., 1987. Ship Shoal Block 91 field, offshore

Louisiana: discovery and development of a strat- igraphic field. Geophysics, 52(11): 1466-1472. 6125 Southwest Hood Ave., Portland, OR 97201, USA.

88:3496 Trotsyuk, V.J., A.M. Bolshakov, L.I. Lebedev and

V.A. Gorsilin, 1986. Gas-acoustic anomalies in the shelf deposits in the People's Republic of Bulgaria and their practical application. Ocean- ology, Sofia, 16:68-73. (In Bulgarian, English abstract.)

D340. Manganese nodules, etc. 88:3497

Chen, Song, Aiyu Xu and Bingkun Luo, 1987. Geochemistry of abyssal sediment in the Pacific

Ocean. Acta oceanol, sin. (English version), 6(3):389-396. Third Inst. of Oceanogr., State Oceanic Admin., Xiamen, People's Republic of China.

88:3498 Kang, J.-K., 1987. Mineralogy and internal structures

of a ferromanganese crust from a seamount, central Pacific. J. oceanol. Soc. Korea, 22(3): 168- 178.

The distribution of manganese mineral vernadite in the different layers indicates typical hydrogenous origin under a continuous change of growth con- ditions during crustal formation. Various internal structures are discerned within the crust which may be attributed to different growth conditions. The growth structure changes and the distinct break in the formation of the crust at about 2 cm depth are assumed to be the results of Miocene to Mid- Pleistocene global palaeoceanographic events. KORDI, Ansan, P.O. Box 29, Seoul 171-14, Korea.

E. BIOLOGICAL OCEANOGRAPHY

El0. Apparatus and methods

88:3499 Andrew, N.L. and B.D. Mapstone, 1987. Sampling

and the description of spatial pattern in marine ecology. Oceanogr. mar. Biol. a. Rev., 25:39-90.

Methods of univariate data sampling applied to specific questiofis of spatial or abundance patterns, derived from the literature published during 1965- June 1986, are reviewed and analyzed. Widespread, indiscriminate use of 'standard' sampling procedures occurred, and the authors suggest that ecologists scrutinize accepted methods for accuracy and cost- effectiveness, selecting the most appropriate sam- pling design on a case by case basis. Inst. of Mar. Ecol., School of Biol. Sci., Univ. of Sydney, NSW 2006, Australia. (gsb)

88:3500 Baretta, J.W. and P. Ruardij, 1987. Evaluation of the

Ems Estuary ecosystem model. Continent. Shelf Res., 7(11-12): 1471-1476.

An ecosystem model is used to calculate and summarize carbon budgets. The similarity between model calculations and field data is established using a validation procedure. Results show the seaward boundary concentration for suspended matter is important in determining whether an estuary is an importer or exporter of carbon. Lowered boundary concentrations of suspended matter enhance pelagic primary production, but reduce sedimentation and hence the carbon flux from pelagic to benthic systems. Netherlands Inst. for Sea Res., P.O. Box 59, Den Burg, Texel, Netherlands.

88:3501 Jernakoff, P., 1987. An electromagnetic tracking

system for use in shallow water. J. expl mar. Biol. Ecol., 113(1):1-8.

Modifications to an electromagnetic method of tracking juvenile western rock lobsters Panulirus cygnus are documented. The receiving aerials were made more robust to increase their useful life, and an automated tracking system developed, which