The Biology of Calanus Finmarchicus in the Gulf of Maine and Bay of Fundy

Fish, Charles J.

doi:10.2307/1537318

Cited by 29 publications

(7 citation statements)

References 7 publications

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“…Calanus finmarchicus appears to have 2 generations during the first half of the year in the GOM (Bigelow 1926, Fish 1936, Mullin 1963, Meise & O'Reilly 1996, Durbin et al 2000a. The first begins in late December to early January from parents that overwintered as CV copepodites during the previous fall and early winter, possibly at depth.…”

Section: Discussionmentioning

confidence: 99%

“…This 'overwintering' generation then remains at depth until it rises to the surface, reaches adulthood, and begins reproduction in the early winter (Durbin et al 1997). Fish (1936) suggested that the life span of C. finmarchicus in the GOM was 4 mo or less in summer, but possibly 10 to 11 mo in winter. Thus, large-scale long-term oceanographic phenomena that affect water masses in deep basins in the GOM may have different effects on long-lived overwintering populations of late-stage C. finmarchicus than on young recently-spawned copepodites of the early winter generation linked to short-term local climatic variability.…”

Section: Discussionmentioning

confidence: 99%

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Zooplankton of Massachusetts Bay, USA, 19922003: relationships between the copepod Calanus finmarchicus and the North Atlantic Oscillation

Turner¹,

Borkman²,

Hunt³

2006

Mar. Ecol. Prog. Ser.

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Zooplankton community analyses were performed on 102 µm mesh net samples from 1992 to 2003 from 2 stations, in Massachusetts Bay, USA, approximately 15 km offshore from Boston Harbor. There was significant (p < 0.05) negative correlation, with no temporal lag, between the boreal winter North Atlantic Oscillation (NAO) index and winter abundance of Calanus finmarchicus adults plus copepodites (CI to CV) at both stations. The negative correlation between the NAO Index and C. finmarchicus is the opposite of the positive relation emerging from other long-term studies in the Gulf of Maine (GOM) region, but is similar to the negative correlation in many areas of the NE Atlantic. Our data reflect primarily abundance of younger copepodites, which dominated our C. finmarchicus data. These younger copepodites had probably been produced during the first winter cohorts of C. finmarchicus each year, and were only weeks to months old upon capture. Previous positive correlations between C. finmarchicus abundance and the NAO index reported in the literature, with temporal lags of 2 to 4 yr, reflected data for larger CV and adult C. finmarchicus, which had probably been produced the previous year and had overwintered in deep basins in the Gulf of Maine. These older individuals would probably have been more subject to longer-term effects of NAO variability on large-scale interannual circulation patterns than the younger copepodites in our samples, which appeared to be more related to short-term climatic variability. Significant negative correlation between wind speed and abundance of C. finmarchicus supported this conclusion.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Zooplankton of Massachusetts Bay, USA, 19922003: relationships between the copepod Calanus finmarchicus and the North Atlantic Oscillation

Turner¹,

Borkman²,

Hunt³

2006

Mar. Ecol. Prog. Ser.

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“…In the second type there seems to be a shorter time between the appearance of adult females and the production of eggs and nauplii. In Calanus (Fish, 1936a;Marshall et ah, 1934) the maturing of the eggs is supposed to take about 3-4 weeks, and the same seems to be true of Microcalanus. In the other copepods a peak in nauplius numbers followed more closely (in two or three weeks) upon the appearance of adults, and two broods might appear in quick succession.…”

Section: Septmentioning

confidence: 95%

On the biology of the small copepods in Loch Striven

Marshall¹

1949

J. Mar. Biol. Ass.

133

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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 as a rule so clearly marked as in Calanus. Microcalanus begins to breed before the spring increase and has clearly marked broods like Calanus.

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“…The 'classical' phenological sequence in Calanus is that of Calanus finmarchicus as originally demonstrated in the Clyde Sea by Marshall et al (1934) and in the Gulf of Maine by Bigelow (1926) and Fish (1936). Arctic data are provided by Tande (1982).…”

Section: Phenology In Calanusmentioning

confidence: 99%

Phenology in Calanus finmarchicus; hypotheses about control mechanisms

Miller¹,

Cowles²,

Wiebe³

et al. 1991

Mar. Ecol. Prog. Ser.

164

114

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Calanus finmarchicus (Gunnerus) stratify nariowly near 500 m depth dunng their fifth copepodite resting phase in North Atlantic Slope Water off southern New England USA They probably a c h~e v e this by migration to a specific, daytime isolume Photoperiod information provided by light intensity at depth could serve as a cue for termination of the resting phase Population data on tooth formation and gonad growth show that the reshng stock prepares foi termination in late winter and matures in February-March Photopel~ods are lengthening throughout that seasonal interval, and might cue arousal An endogenous, long-range timer that cues arousal after an interval of rest is another possible mechamsm

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The Biology of Calanus Finmarchicus in the Gulf of Maine and Bay of Fundy

Cited by 29 publications

References 7 publications

Zooplankton of Massachusetts Bay, USA, 19922003: relationships between the copepod Calanus finmarchicus and the North Atlantic Oscillation

Zooplankton of Massachusetts Bay, USA, 19922003: relationships between the copepod Calanus finmarchicus and the North Atlantic Oscillation

On the biology of the small copepods in Loch Striven

Phenology in Calanus finmarchicus; hypotheses about control mechanisms

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The Biology of Calanus Finmarchicus in the Gulf of Maine and Bay of Fundy

Cited by 29 publications

References 7 publications

Zooplankton of Massachusetts Bay, USA, 19922003: relationships between the copepod Calanus finmarchicus and the North Atlantic Oscillation

Zooplankton of Massachusetts Bay, USA, 19922003: relationships between the copepod Calanus finmarchicus and the North Atlantic Oscillation

On the biology of the small copepods in Loch Striven

Phenology in Calanus finmarchicus; hypotheses about control mechanisms

Contact Info

Product

Resources

About

Zooplankton of Massachusetts Bay, USA, 19922003: relationships between the copepod Calanus finmarchicus and the North Atlantic Oscillation

Zooplankton of Massachusetts Bay, USA, 19922003: relationships between the copepod Calanus finmarchicus and the North Atlantic Oscillation