1949
DOI: 10.1017/s0025315400055235
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On the biology of the small copepods in Loch Striven

Abstract: The seven species of small copepod common in Loch Striven have been studied from vertical tow-net hauls taken there throughout the year 1933. These copepods were Pseudocalanus minutus, Paracalanus parvus, Microcalanus pygmaeus, Centropages hamatus, Temora longicornis, Acartia clausi and Oithona similis.In general, the copepods began to reproduce about the time of the spring diatom increase in March or April, and produced a succession of broods throughout the summer; apart from the first these broods were not a… Show more

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Cited by 133 publications
(83 citation statements)
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“…ASSOC.vol. xxx, 1952 36 depend on diatom outbursts (Marshall, 1949), and it may therefore be expected that these will show a similar effect of feeding on egg-laying.…”
Section: Discussionmentioning
confidence: 99%
“…ASSOC.vol. xxx, 1952 36 depend on diatom outbursts (Marshall, 1949), and it may therefore be expected that these will show a similar effect of feeding on egg-laying.…”
Section: Discussionmentioning
confidence: 99%
“…Die Generationszeit betr~igt dabei 5 bzw. 51/2 Wochen, wie auch yon Marshall (1949) und Digby (1950 fiir englische GewSsser beschrieben.…”
Section: Statistische Berechnungenunclassified
“…Durch verschiedene Autoren ist beschrieben worden, dab eine Eiablage bei Kopepoden erst erfolgt, wenn optimale Lebensbedingungen ftir die Art vorliegen. Insbesondere Massenentwicklungen von Phytoplankton haben einen ausl6senden EinfluB auf die Reproduktion einer Population (Marshall, 1949;Marshall & Orr, 1972;Iwasaki et al, 1977). Dieses Ph~inomen ist auch hier zu beobachten (Tab.…”
Section: Einflub Der Nahrung Auf Die Reproduktionunclassified
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“…In general it disappears in the inner region of various inlets, where Acartia and Oithona nana communities are found. In the northern Atlantic, Oith01:a similis occurs in abundance in inlets for the greater 168 I. YAMAZI part of the year (WILSON, 1932;WIBORG, 1940;DIGBY, 1950;DEEVEY, 1952;FISH, 1936;MARSHALL, 1949), and repeats the spawning three or four times a year. It may become adult within two months in favourable conditions.…”
Section: Oithona Similis Clausmentioning
confidence: 99%