MARINE BIOLOGICAL ASSOCIATION OF THE UNITED KINGDOM RESEARCH AWARDS Applications are invited for research awards to enable scientists from the United Kingdom, or from abroad, to work at the Association's Citadel Hill Laboratory, either as independent visitors or to collaborate in work currently being undertaken as part of the Association's Research Programme. Two levels of award are available: RESEARCH BURSARIES available for visitors at all levels of experience from graduate students to senior scientists. Several awards are made each year with a maximum value of £2,500. RAY LANKESTERINVESTIGATORSHIP available to postdoctoral research workers with several years of research experience in some aspect of marine biology or marine physiology. One award is made each year to a value of £5,000 to enable visitors to work at the Laboratory for a minimum of 5 months over an 18-month period. Applications or enquiries are invited for 1990 and 1991. Successful applicants will be expected to become members of the Association. Further details may be obtained from: Dr Gerald Boalch, The Bursar Marine Biological Association of the United Kingdom The Laboratory Citadel Hill Plymouth PL1 2PB UK or by telephoning: 0752-222772 ext. 211 Downloaded from https://www.cambridge.org/core. IP address: 170.106.35.93, on 26 Sep 2021 at 17:38:53, subject to the Cambridge Core terms of use, available at https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0025315400035359 Cover: The photograph on the outside of the cover was taken by David Nicholson at Pedney Beach, Cornwall. Inside front cover: Second zoea of velvet fiddler crab Portunus puber (L.) (height 3 mm). Photograph by Douglas P. Wilson. Inside back cover: 'Back' view of first zoea of Goneplax angulata (Pennant) (height 2 mm). Photograph by Douglas P. Wilson. © The Marine Biological Association of the United Kingdom 1990 CAMBRIDGE UNIVERSITY PRESS THE PITT BUILDING, TRUMPINGTON STREET, CAMBRIDGE CB2 1RP 40 WEST 20TH STREET, NEW YORK, NY 10011, USA 10 STAMFORD ROAD, OAKLEIGH, MELBOURNE 3166, AUSTRALIA Printed in Great Britain by the University Press, Cambridge Downloaded from https://www.cambridge.org/core. IP address: 170.106.35.93, on 26 Sep 2021 at 17:38:53, subject to the Cambridge Core terms of use, available at https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0025315400035359 Downloaded from https://www.cambridge.org/core. IP address: 170.106.35.93, on 26 Sep 2021 at 17:38:53, subject to the Cambridge Core terms of use, available at https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0025315400035359 ISSN: 0025-3154 JMBA JOURNAL OF THE MARINE BIOLOGICAL ASSOCIATION OF THE UNITED KINGDOM VOLUME 70;2 MAY 1990 CONTENTS Rogers. S. I. and Lockwood, S J. Observations on coastal fish fauna during a spring bloom of Phaeocystis pouchetii in the eastern Irish Sea 249 Rousset. J. Catches and geographical distribution of selachians on the western coast of Brittany 255 Rousset. J. Population structure of thornback rays Raja clavata and their movements in the Bay of Douarnenez 261 Anstensrud. M. Moulting and mating in Lepeophtheirus pectoralis (Copepoda: Caligidae) 269 Arrontes. J and Anadon. R. Distribution of intertidal isopods in relation to geographical changes in macroalgal cover in the Bay of Biscay 283 LeTissier, M. DA A The ultrastructure of the skeleton and skeletogenic tissues of the temperate coral Caryophyllia smithii 295 Davenport, J Observations on the locomotion of post-larval and luvenile flying fish 311 Ramon, M Spawning and development of Calliostoma gtanulatum in the Mediterranean Sea 321 Costello. M J.. Edwards. J. and Potts, G W The diet of the two-spot goby. Gobiusculus flavescens (Pisces) 329 Gaten, E . Shelton. P. M. J., Chapman. C. J. and Shanks. A M Depth related variation in the structure and functioning of the compound eye of the Norway lobster Nephrops norvegicus 343 Charpy, L and Charpy-Roubaud, C J. A model of the relationship between light and primary production in an atoll lagoon 357 King, P. A.. McGrath, D. and Britton. W. The use of artificial substrates in monitoring mussel (Mytilus edulis L.) settlement on an exposed rocky shore in the west of Ireland 371 Patterson, D. J Jakoba libera (Ruinen. 1938). a heterotrophic flagellate from deep oceanic sediments 381 Koob, T. J. and Cox. D L Introduction and oxidation of catechols during the formation of the skate (Raja ennacea) egg capsule 395 Blaxter. J. H. S. and Fuiman, L A. The role of the sensory systems of herring larvae in evading predatory fishes 413 Glynn, P. J. and Pulsford. A. L. Isolation and partial characterisation of the serum immunoglobulin of the flounder. Platichthys flesus 429 Anwar, N A. Richardson, C. A and Seed, R. Age determination, growth rate and population structure of the horse mussel Modiolus modiolus 441 Porteiro, F. M . Martins. H. R. and Hanlon, R T. Some observations on the behaviour of adult squids. Loligo forbesi. in captivity 459 Short Communications: Marasovic, I, Pucher-Petkovic, T. and Petrova-Karadjova. V. 473 Moore, S. J. 477 Book Notices 481 Downloaded from https://www.cambridge.org/core. IP address: 170.106.35.93, on 26 Sep 2021 at 17:38:53, subject to the Cambridge Core terms of use, available at https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0025315400035359 CAMBRIDGE UNIVERSITY PRESS.