Feeding and respiration rates of a planktonic copepod (Calanus sinicus) oversummering in Yellow Sea Cold Bottom Waters

Li, Chaolun; Sun, Song; Wang, R.; Wang, X.

doi:10.1007/s00227-004-1306-x

Cited by 34 publications

(33 citation statements)

References 32 publications

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“…During this experiment with spring bloom concentrations of algae, our results indicated that C. finmarchicus could meet their CR on a herbivorous diet alone. This result differs from the findings of many previous studies showing respiration rates exceeding phytoplankton ingestion, suggesting an importance of microzoplankton in the copepod diet (Dagg et al 1980, Dam & Peterson 1993, Li et al 2004. The feeding preference of C. finmarchicus for larger microzooplankton is likely to be more pronounced during the post-bloom period or when phytoplankton concentration is low and the dominant species are small (Koski & Wexels-Riser 2006), and when microzooplankton concentrations are relatively high.…”

Section: Copepod Feeding and Carbon Requirementscontrasting

confidence: 94%

Partition of planktonic respiratory carbon requirements during a phytoplankton spring bloom

Amin¹,

Båmstedt²,

Nejstgaard³

et al. 2012

Mar. Ecol. Prog. Ser.

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We studied the effect of variable phytoplankton biomass and dominance of the diatom Skeletonema marinoi on the planktonic community respiratory carbon requirement over a period of 14 d (14 to 28 April 2008) in 3 different mesocosms filled with natural water at Espegrend marine biological field station in Raunefjord, Norway. The carbon requirement was measured on mesozooplankton (the calanoid copepod Calanus finmarchicus) and 3 other size fractions of plankton -< 200 µm (dominated by microzooplankton), <15 µm (dominated by nanoplankton including most of the phytoplankton) and particles passing GF/C filters (dominated by bacterioplankton) -by measuring oxygen consumption using an optode system with 2 SensorDish Readers. The respiratory carbon requirement showed no clear trend over time for any of the 4 groups. The mesozooplankton contributed the least to the total community carbon requirement, corresponding to < 6% of primary production. In contrast, microzooplankton and nanoplankton consistently dominated the community carbon requirement, corresponding to > 50% of the primary production, while bacterioplankton showed an intermediate and variable contribution (ca. < 20% with a maximum of 50%). Feeding experiments on mesozooplankton (C. finmarchicus) 2 d before the peak in phytoplankton biomass showed that the copepods ingested from 2.4 to 4.3 times their respiratory carbon requirements, thus providing a high potential for growth. Respiratory carbon requirements of mesozooplankton were not significantly related to dominance or quantity of food available, whereas the respiratory carbon requirements of other groups were all related to the production of 22:6(n-3) fatty acid. The present study confirms the important role of microorganisms in the biological carbon transformation through the food web during a phytoplankton spring bloom. KEY WORDS: Plankton community · Respiratory carbon requirement · Energy transfer · Skeletonema marinoi · Mesozooplankton · Calanus Resale or republication not permitted without written consent of the publisherMar Ecol Prog Ser 451: 15-29, 2012 16 Rivkin & Legendre 2001), whereas others suggest that bacterioplankton represent less (Ducklow et al. 2000) and that algal respiration (Lancelot et al. 1991) and microzooplankton (Calbet & Landry 2004) account for the bulk of community respiration in some eutrophic ecosystems. Consequently, the balance between photosynthesis and respiration will be strongly influenced by the quantitative relationships between microzooplankton, phytoplankton and bacterioplankton.Mesozooplankton respiration rate is an estimation of their minimum energetic requirements under given conditions, in terms of carbon (Hernández-León & Gómez 1996), thus representing the amount of energy necessary to maintain the structure and activity at this trophic level (Alcaraz & Packard 1989). Mesozooplankton is generally assumed to respire less than the smaller size groups, but, depending on the region studied and method of estimation, the mesozooplankton have been estim...

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Section: Copepod Feeding and Carbon Requirementscontrasting

confidence: 94%

Partition of planktonic respiratory carbon requirements during a phytoplankton spring bloom

Amin¹,

Båmstedt²,

Nejstgaard³

et al. 2012

Mar. Ecol. Prog. Ser.

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“…During the autumn cruise, the population features (population aggregation and C5 dominance) and the inactive reproduction of Calanus sinicus in the YSCWM were similar to conditions in summer (Wang et al 2003, Li et al 2004, Zhang et al 2007), suggesting the impact of the thermal stratification would at least continue to early November. This confirms that the YSCWM provides a shelter for C. sinicus to survive rather than stimulating reproduction (Wang & Zuo 2004, Zhang et al 2007).…”

Section: Reproduction and Recruitmentmentioning

confidence: 97%

“…Nevertheless, temperature may exert influences on reproduction of C. sinicus indirectly; for example, it has a negative effect on female body size (Uye 1988, this study), which can in turn influence the clutch size and the EPR (Zhang et al 2005). Furthermore, temperature is a regulatory factor of the metabolic rate in C. sinicus (Li et al 2004), thus it can alter the energy dispensation to reproduction and other physiological requirements.…”

Section: Factors Affecting Reproductionmentioning

confidence: 99%

“…Poor food conditions are common in the YSCWM ( Fig. 3D,E ;Li et al 2004, Pu et al 2004, Zhang et al 2007). In response, female feeding rates were extremely low there (<1% body carbon d -1…”

Section: Gonad Maturitymentioning

confidence: 99%

“…; Huo et al 2008), which could barely meet the metabolic requirements of C. sinicus females (Li et al 2004), thus there would not be sufficient external nutrition to initiate final gonad maturation. Similarly, Zhang et al (2007) ascribed null egg production in the YSCWM during summer to food limitation, but unfortunately that study did not examine gonad development.…”

Section: Gonad Maturitymentioning

confidence: 99%

See 2 more Smart Citations

Spring and autumn reproduction of Calanus sinicus in the Yellow Sea

Wang¹,

Li²,

Sun³

et al. 2009

Mar. Ecol. Prog. Ser.

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Copepod respiration increases by 7% per °C increase in temperature: A meta‐analysis

Heine

Abebe

Wilson

et al. 2019

Limnol Oceanogr Letters

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Exponential increase in respiration rate with increasing temperature in poikilotherms is well documented, however, the rate of change varies greatly across copepod taxa. Studies often report magnitude of change, but the rate of change in respiration across multiple temperatures is equivocal. We used 32 studies spanning 78 yrs of research and 50 copepod species (three orders) to quantify percent change in respiration rates per one‐unit change in temperature. We found that copepod respiration rates increased by approximately 7% per °C increase in water temperature across the orders Calanoida, Cyclopoida, and Harpacticoida. Neither food availability nor scaling respiration to copepod dry weight affected the rate of change of respiration rates. Studies using Winkler titration to measure oxygen consumption produced significantly larger percent changes in respiration, whereas newer methods such as fiber optics produced smaller effects. These results have far reaching implications for understanding how copepod respiration responds to increasing water temperatures.

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Feeding and respiration rates of a planktonic copepod (Calanus sinicus) oversummering in Yellow Sea Cold Bottom Waters

Cited by 34 publications

References 32 publications

Partition of planktonic respiratory carbon requirements during a phytoplankton spring bloom

Partition of planktonic respiratory carbon requirements during a phytoplankton spring bloom

Spring and autumn reproduction of Calanus sinicus in the Yellow Sea

Copepod respiration increases by 7% per °C increase in temperature: A meta‐analysis

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