ICES Marine Science Symposia

issN 0906-060X Actes du Symposium

Volume 192 June 1991

The Ecology and Management Aspects of Extensive Mariculture

A Symposium held in Nantes, 20-23 June 1989

International Council for the Exploration of the Sea

Conseil International pour l'Exploration de la Mer

ICES Marine Science Symposia

Actes du Symposium

Volume 192

THE ECOLOGY AND MANAGEMENT ASPECTS OF EXTENSIVE MARICULTURE

A Symposium held in Nantes, 20-23 June 1989

Edited by

STEPHEN J. LOCKWOOD

IN T ER N A TIO N A L COUNCIL FO R THE EXPLO RA TIO N OF T H E SEA

CONSEIL IN TER N A TIO N A L PO U R L’EXPLO RA TIO N DE LA M ER

ISSN 0906-060X June 1991

ICES MSS 192 T H E EC O LO G Y AN D M ANA G EM EN T ASPECTS O F EXTENSIVE ISSN 0906-060X M ARICULTU RE

June 1991

Contents

J.-P. Troadec and S. J. Lockwood Introduction

I. Overviews

J.-P. Troadec Extensive aquaculture: a future opportunity for increasing fishproduction and a new field for fishery investigations

P. A. Larkin Mariculture and fisheries: future prospects and partnerships

II. Factors affecting distribution

J. C. Salomon Hydrodynamic action on benthic macrofauna in tidal coastal zones 15

M. Fréchette, D. A. Booth, B. Myrand, and H. Bérard

Variability and transport of organic seston near a mussel aquaculture site 24

S. Sundby Factors affecting the vertical distribution of eggs 33

M. J. Tremblay and M. Sinclair Inshore-offshore differences in the distribution of sea scallop larvae: implications for recruitment (Abstract)

39

M. J. Tremblay Rapporteur

Factors affecting distribution (Workshop Report) 40

C. Bacher

M. Héral

C. Grenz, H. Masse, A. K. Morchid, and A. Parache

L. A. Dushkina

R. M. Peterman

M. Frechette Rapporteur

III. Carrying capacity and density dependence

Etude de l'impact du stock d'huîtres et des mollusques compétiteurs sur 41les performances de croissance de Crassostrea gigas, à l'aide d’un modèle de croissance

Approches de la capacité trophique des écosystèmes conchylicoles: 48synthèse bibliographique

An estimate of the energy budget between cultivated biomass and the 63environment around a mussel-park in the northwest Mediterranean Sea

Relationships between mariculture and natural populations in the seas of 68the USSR (Abstract)

Density-dependent marine processes in North Pacific salmonids: lessons 69for experimental design of large-scale manipulations of fish stocks

Carrying capacity and density dependence (Workshop Report) 78

A. R. Brand, U. A. W. Wilson, S. J. Hawkins, E. H. Allison, and

N. A. Duggan

P. S. Kristensen and E. Hoffmann

D. Latrouite et J. Lorec

R. C. A. Bannister andA. E. Howard

G. I. van der Meeren

IV. Stock enhancement

Pectinid fisheries, spat collection, and the potential for stock 79enhancement in the Isle of Man

Investigations on transplantation and culture of blue mussels (Mytilus 87edulis L.) in bottom culture plots in Limfjord, Denmark

L’expérience française de forçage du recrutement du homard européen 93(Homarus gammarus): résultats préliminaires

A large-scale experiment to enhance a stock of lobster (Homarus 99gammarus L.) on the English east coast

The effect of transportation methods on behaviour of juvenile Atlantic 108lobster (Homarus gammarus) (Abstract)

H. Ackefors, N. Johansson, andB. Wahlberg

E. Hoffmann

J. Hussenot, O. Le Moine, etF. Lagardère

O. M. Smedstad

J. T. Nordeide and A. G. V. Salvanes

J. H. Fosså

S. Kaartvedt

J. Giske, D. L. Aksnes, U. Lie, and S. M. Wakili

G. Blom, H. O tterå, T. Svåsand, T. S. Kristiansen, and B. Serigstad

T. van der Meeren

R. C. A. Bannister Rapporteur

T. Svåsand, K. E. Jørstad, G. Blom, and T. S. Kristiansen

K. E. Jørstad, 0 . Skaala, andG. Dahle

J. E. Stewart

K. E. Jørstad Rapporteur

R. B. Rettig

R. Arnason

K. Kase and D. Bailly

D. Bailly

R. C. A. Bannister and M. G. Pawson

D. Bailly Rapporteur

The Swedish compensatory programme for salmon in the Baltic: an action plan with biological and economic implications

A review of plaice (Pleuronectes platessa) transplantation trials in Denmark 1891-1990

L’élevage larvaire extensif du bar (Dicentrarchus labrax) et de la daurade royale (Sparus aurata) en milieu naturel stimulé par fertilisation dans les marais salés de la côte atlantique, France

An introduction to the programme: enhancement of cod in a fjord, Masfjorden (Abstract)

Observations on reared newly released and wild cod (Gadus morhua L.) and their potential predators

The ecology of the two-spot goby (Gobiusculus flavescens Fabricius): the potential for cod enhancement

Plankton as potential prey in fjords

Computer simulation of pelagic production in Masfjorden, western Norway, and its consequences for production of released 0-group cod

The relationship between feeding conditions and production of cod fry (Gadus morhua L.) in a semi-enclosed marine ecosystem in western Norway, illustrated by use of a consumption model

Algae as first food for cod larvae (Gadus morhua L.): experimental data and field observations on larvae reared in mesocosms (Abstract)

Stock enhancement (Workshop Report)

V. Epidemiology and effects on gene pools and species communities

Application of genetic markers for early life history investigations on Atlantic cod (Gadus morhua L..)

The development of biochemical and visible genetic markers and their potential use in evaluating interaction between cultured and wild fish populations

Approaches to problems of disease in aquaculture

Epidemiology and effects on gene pools (Workshop Report)

VI. Bioeconomic modelling and resource allocation

Conflicts between salmon mariculture and capture fisheries

On the external economies of ocean ranching

Introduction aux problèmes socio-économiques de la maricultureextensive: expériences japonaises

Aspects économiques et sociaux de la gestion des bassins conchylicoles: le cas de Marennes-Oléron

A perspective on the management of enhanced fish and shellfish stocks in the territorial seas of England and Wales

Bioeconomic modelling and resource distribution (Workshop Report)

109

120

127

137

139

147

156

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176

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226

234

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247

ICES Journal of Marine Science

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Developments in Fisheries Acoustics

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Volume 189 in the series Rapports et Procès-Verbaux des Réunions contains 49 papers arranged according to the fo llow ing main headings: (1 ) Acoustic surveys of marine fish and other stock-assessment methods, (2) Status of fisheries acoustics theory and techniques, (3) Fish behaviour and the quality of acoustic data effects of sampling, vessels, and survey design, (4) Calibration of acoustic systems, (5) Applications of fisheries acoustics techniques in lakes and rivers, (6) Fish behaviour and physi­o logy w ith respect to target strength, (7) Target-strength m easurem ent- techniques and results, (8) Acoustic estimation of zooplankton abundance, (9) Species identification and the frequency dependence of target strength, and (10) Acoustic survey design and data analysis.

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ICES Marine Science SymposiaActes du Symposium

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