Influence of temperature on the marine fauna: What can be expected from a climatic change

Bhaud, Michel; Cha, Jae-Hoon; Duchêne, Jean-Claude; Nozais, Christian

doi:10.1016/0306-4565(94)00031-d

Cited by 47 publications

(26 citation statements)

References 28 publications

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“…Strong intra-specific competition in the juvenile stage has been also been demonstrated in the polychaete Eupolymnia nebulosa (Bhaud et al 1995). Bhaud et al (1995) concluded that the juvenile period of E. nebulosa was therefore the critical stage in determining the timing of life-cycle events in relation to the annual calendar.…”

Section: Discussionmentioning

confidence: 95%

“…The release of larvae at times when the water temperature is increasing is thought to reduce the varia-tion in the size range of the larvae (Bhaud et al 1995). This reduction in the juvenile size range has been shown to be advantageous, as it balances the interindividual competition (Cha 1994 cited in Bhaud et al 1995).…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

“…This reduction in the juvenile size range has been shown to be advantageous, as it balances the interindividual competition (Cha 1994 cited in Bhaud et al 1995). Strong intra-specific competition in the juvenile stage has been also been demonstrated in the polychaete Eupolymnia nebulosa (Bhaud et al 1995). Bhaud et al (1995) concluded that the juvenile period of E. nebulosa was therefore the critical stage in determining the timing of life-cycle events in relation to the annual calendar.…”

Section: Discussionmentioning

confidence: 99%

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Pre-emptive competition as a selective pressure for early reproduction in the polychaete Nereis virens

Lewis¹,

Olive²,

Bentley³

2003

Mar. Ecol. Prog. Ser.

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Reproduction in the semelparous polychaete Nereis virens occurs at a time of year when seawater temperatures are lower than the optimum temperatures for fertilization and larval development and at a time when seawater temperatures are rising. This study assesses the possible role of intra-specific competitive interactions between settling N. virens post-larvae as a selective pressure for 'early' reproduction. A series of laboratory competition experiments were conducted between 2 cohorts of N. virens post-larvae, under a range of environmental conditions. Significant pre-emptive competition between settling post-larvae was recorded at 15°C, whereby a survival advantage was gained via prior residence with early larval settlers out-competing later arrivals. This competitive interaction was reduced at lower temperatures and no significant effect was measured at 5°C. An increase in age difference between the 2 cohorts of post-larvae increased the competitive effect, whilst photoperiod regime and food availability had no significant effect on the outcome of these experiments. Intra-specific competition was greatest at the temperatures at which maximum fertilization and development are known to occur, but was reduced at the temperature range at which spawning occurs in the field. It is suggested, therefore, that pre-emptive competition between settling post-larvae forms a strong selective pressure for breeding early at a time of year when temperatures are below the optimum for fertilization and development. KEY WORDS: Polychaeta · Pre-emptive competition · Nereis virens · Seasonal reproductionResale or republication not permitted without written consent of the publisher

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Section: Discussionmentioning

confidence: 95%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Pre-emptive competition as a selective pressure for early reproduction in the polychaete Nereis virens

Lewis¹,

Olive²,

Bentley³

2003

Mar. Ecol. Prog. Ser.

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“…Parameters connected with environmental temperature are among the most important physical variables controlling the large-scale distributions and the abundances of marine organisms, though it is often not clear what aspects of temperature are the crucial limiting conditions and what their exact mode of action is (Orton, 1920;Hengeveld, 1990;Bhaud et al, 1995). It is not surprising, thus, that in most scenarios the predicted climate change will have profound implications for ecological conditions (e.g.…”

Section: Resultsmentioning

confidence: 99%

The recent arrival of the oceanic isopodIdotea metallica Bosc off Helgoland (German Bight, North Sea): an indication of a warming trend in the North Sea?

Franke

Gutow

Janke

1998

Helgolander Meeresunters

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In 1988 a long-term study was started of the isopod fauna associated with surface drift material off Helgoland (German Bight, North Sea}. In the summer of 1994 specimens of ldoteu metullica Bosc were recorded for the first time. There is no evidence that this species has ever been present in the German Bight before. The samples contained males, both gravid and non-gravid females, and juveniles, indicating that the species reproduced successfully in the Helgoland region. Interbreeding of specimens from Helgoland and the western Mediterranean produced fertile offspring. As a neustonic species, 1. metallicu shows a high natural capacity for dispersal. It thus seems unlikely that the arrival of the species in the North Sea resulted from an accidental introduction by man. We are probably witnessing an extension of the species' geographical range by natural means of dispersal, as a response to recent changes in the ecological conditions of the German Bight. Temperature data measured by the Biologische Anstalt Helgoland since 1962 show that the last decade (except 1996) was characterized by unusually mild winters. Following the severe winter of 1996, I. metallica was again absent from the Helgoland region. After the subsequent mild winters (1997 and 1998), however, the species reappeared in the summer of 1998 with higher numbers than ever before. This suggests that the observed phenomena are closely connected with the recent temperature anomalies. I. metallica can be regarded as a potential immigrant to a warmer North Sea, and may be useful as a sensitive indicator of the predicted long-term warming trend.

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Interactive Effects of UV Radiation and Nutrients on Ecophysiology: Vulnerability and Adaptation to Climate Change

Figueroa

Korbee

2010

Cellular Origin, Life in Extreme Habitats and Astrobiology

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Influence of temperature on the marine fauna: What can be expected from a climatic change

Cited by 47 publications

References 28 publications

Pre-emptive competition as a selective pressure for early reproduction in the polychaete Nereis virens

Pre-emptive competition as a selective pressure for early reproduction in the polychaete Nereis virens

The recent arrival of the oceanic isopodIdotea metallica Bosc off Helgoland (German Bight, North Sea): an indication of a warming trend in the North Sea?

Interactive Effects of UV Radiation and Nutrients on Ecophysiology: Vulnerability and Adaptation to Climate Change

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