Subtitle:

Review of plankton investigations in the waters of the north-west Africa shelf has hintherto proceded

Contributor:

Polska Akademia Nauk. Komitet Ekologiczny

Publisher:

Państwowe Wydawnictwo Naukowe

Place of publishing:

Warszawa

Description:

Pages 67-72 ; 24 cm ; Bibliographical references (pages 71-72) ; Abstract in English

Type of object:

Journal/Article

Abstract:

The paper presents the evolution of research problems concerned with plankton which has taken place during the period from the first oceanographic expeditions to these waters up to recent years. During the first phase of these studies publications on the subject were mainly concerned with listing findings, and information on the species composition of phyto- and zooplankton, then the next stage dealt with distribution and biology of different species or whole groups of organisms (including different systematic units). In turn attention was concentrated on questions of the biological productivity of these waters, leading up to problems of energy transformation on the first trophic levels. Work on these latter questions has only just been initiated and further analysis is required. Attention is drawn to a certain unevenness in the degree to which research has progressed in different parts of the shelf, as is also the case in relation to different systematic units. The need is emphasised for intensifying work on the identification and biology of the juvenile stages of fish (eggs and larvae) and shrimps, and also the degree to which plankton is used by fish as food. It is also necessary to elaborate collective keys for identifying species of phyto-and zooplankton occurring in the waters of the nort-west African shelf.

References:

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Wiktor, K. 1970 - La composition de la nourriture du maquereau (Scomber colias) des eaux cotieres de l'Afrique du Nord-Ouest - ICES C. M. 1970/J: 7 Com. des poissons pelagiques: 1-3.
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Relation:

Wiadomości Ekologiczne

Volume:

17

Issue:

1

Start page:

67

End page:

72

Detailed Resource Type:

Article

Resource Identifier:

oai:rcin.org.pl:139478 ; ISSN 0013-2969

Source:

MiIZ PAN, call no. P.3259 ; click here to follow the link

Language:

pol

Language of abstract:

eng

Rights:

Creative Commons Attribution BY 3.0 PL license

Terms of use:

Copyright-protected material. [CC BY 3.0 PL] May be used within the scope specified in Creative Commons Attribution BY 3.0 PL license, full text available at: ; -

Digitizing institution:

Museum and Institute of Zoology of the Polish Academy of Sciences

Original in:

Library of the Museum and Institute of Zoology of the Polish Academy of Sciences

Projects co-financed by:

Operational Program Digital Poland, 2014-2020, Measure 2.3: Digital accessibility and usefulness of public sector information; funds from the European Regional Development Fund and national co-financing from the state budget.

Access:

Open