Feeding of Acartia clausi and Pseudodiaptomus hessei (Copepoda: Calanoida) on natural particles in a tropical lagoon (Ebrié, Côte d'Ivoire)

Pagano, Marc; Kouassi, Ernest; Saint‐Jean, Lucien; Arfi, Robert; Bouvy, Marc

doi:10.1016/s0272-7714(02)00193-2

Cited by 34 publications

(24 citation statements)

References 32 publications

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“…, which was equivalent to 55-92% of body C, associated with the high dietary contribution of ciliates deviates considerably from the generally low rations obtained by copepods feeding under oligotrophic and post-bloom conditions, but falls well within the range of total rations recorded for this species (Pagano et al 2003, Katechakis et al 2004). This high daily ration likely resulted from the high ciliate biomass and the dominance of large species recorded in our study.…”

Section: Prey Selection Patterns and Daily Rationsupporting

confidence: 50%

Importance and nutritional value of large ciliates for the reproduction of Acartia clausi during the post spring-bloom period in the North Sea

Dutz¹,

Peters²

2008

Aquat. Microb. Ecol.

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Shipboard experiments were performed to examine the qualitative importance of large marine microzooplankton for the reproduction of Acartia clausi in the North Sea. Feeding and egg production were compared in 2 treatments in which females were fed natural seston or natural seston selectively enriched with large prey (> 20 µm). The mineral (C, N) and lipid contents of the food suspensions were determined for size-fractionated samples to characterize the nutritional composition of prey. Large oligotrich ciliates and Strobiliidae dominated the seston biomass. Ciliates, particularly the oligotrich Laboea strobila, were the preferred food and made up more than 86% of the diet (2.9 µg C female -1 d ), achieving maximum rates recorded for this species in the North Sea. Ingestion and egg production of females increased equally in the enriched treatment, largely due to ingestion of additional ciliates. This allowed calculation of the gross growth efficiency for egg production on a diet of mixed ciliates, which was high at ~30%. Measurements of the mineral and lipid content confirmed a high seston nutritional quality. The 20 to 48 µm fraction reflected the composition of female diets and indicated an enrichment of N and polyunsaturated fatty acids (PUFA) in the diet compared to total seston. The fraction > 48 µm consisted mostly of ciliates (> 97%) and was particularly important in providing N to copepods. Ciliates were also rich in PUFA and eicosapentaenoic acid (EPA), which is normally characteristic of diatoms. We conclude that large ciliates constitute an excellent food source for the reproduction of A. clausi. The occurrence of biomass peaks of large ciliates following the spring diatom bloom probably contributes substantially to the spring recruitment of the species in the North Sea.

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Section: Prey Selection Patterns and Daily Rationsupporting

confidence: 50%

Importance and nutritional value of large ciliates for the reproduction of Acartia clausi during the post spring-bloom period in the North Sea

Dutz¹,

Peters²

2008

Aquat. Microb. Ecol.

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“…Its positive relationship with A. tonsa and copepod nauplii suggests a clear food dependence for copepods in Sontecomapan. Food dependence of copepods (and Acartia species) has been observed in other eutrophic coastal lagoons (Cervetto et al 1993;Pagano et al 2003). The association of high chlorophyll a with appendicularians during the rainy survey (coinertia analysis, Figure 6) also reflects the high feeding efficiency of these organisms on phytoplankton (up to almost 1 L ind −1 day −1…”

Section: Factors Controlling Zooplankton Communitymentioning

confidence: 68%

Spatiotemporal variations of zooplankton community in a shallow tropical brackish lagoon (Sontecomapan, Veracruz, Mexico)

et al. 2014

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Background: We studied the relationships between zooplankton distribution and environmental and trophic factors (abiotic variables, nutrients, bacterial biomass, and chlorophyll pigments) from three sampling surveys carried out during the three hydrological seasons (rainy, dry, and norte) in a tropical coastal lagoon connected to the sea. Results: Twenty eight (28) of the 54 taxa recorded were identified to species level, of which 3 genera of Cladocera were observed for the first time in the lagoon. Season-specific differences were highly significant. The overall zooplankton abundance was significantly higher during the dry season (157,000 ind.m −3 ) than those during the rainy and norte surveys (means of 11,600 and 16,700 ind.m −3 respectively). Copepoda (mostly nauplii) was the most abundant group (>83%) of total zooplankton abundance. Conclusions: Multivariate (coinertia) and multilinear regression analyses showed that transparency, salinity, temperature, pH, and food availability (Chl a, b, and c) were the main determinants of zooplankton abundance, composition, and diversity, explaining the seasonal differences. The relatively low zooplankton density in the lagoon compared to other eutrophic lagoons is attributed to the combined effects of high water exchanges, low depth, and high transparency, which favor instability and vulnerability to UV effects and/or to visual predation.

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“…The neritic copepod Acartia clausi Giesbrecht has been recorded in different areas of the Atlantic Ocean, such as the North Sea (Tiselius et al 1991), Irish Sea (Castellani & Lucas 2003), English Channel (Lindley et al 1997), Cantabrian coast (Quevedo et al 1999) and northwest coast of Portugal (Morgado et al 2003) as well as in other areas including the Mediterranean Sea (Gaudy et al 2000), Black Sea (Gubanova et al 2002), Gulf of Guinea (Pagano et al 2003) and Pacific Ocean (Gomez-Gutierrez et al 1999). …”

Section: Introductionmentioning

confidence: 99%

Temperature-dependent development and somatic growth in two allopatric populations of Acartia clausi (Copepoda: Calanoida)

Leandro¹,

Queiroga²,

Rodríguez-Graña³

et al. 2006

Mar. Ecol. Prog. Ser.

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This study compares the effect of temperature on the post-embryonic development time and weight-specific growth rate in 2 populations of Acartia clausi from different biogeographic areas (northern and southern Europe). Development was followed from nauplius I to adult at 3 temperatures (10, 15 and 18°C) at saturating food conditions. The relationship between development time and temperature was established by fitting Belehradek's function. The northern population had a shorter generation time at all temperatures. At 10°C, the development time was estimated to be 33.9 and 36.4 d decreasing to 16.3 and 17.4 d at 18°C for the northern and southern populations, respectively. Prosome length decreased with temperature, and the southern population had longer individuals at all temperatures. ANCOVA revealed a significant (p < 0.001) positive effect of temperature on the growth rates, and nauplii grew faster than copepodites (except at 18°C in the southern population and 20°C in the northern population). Significant differences between populations were noted during larval growth, with nauplii from the north growing faster at high temperatures (18°C). The results indicate that the 2 A. clausi allopatric populations subjected to different temperature regimes have different temperature responses, in particular at high temperatures.KEY WORDS: Temperature · Development time · Weight-specific growth rate · Acartia clausi · Ria de Aveiro (Portugal) · Gullmarsfjord (Sweden)Resale or republication not permitted without written consent of the publisher

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Feeding of Acartia clausi and Pseudodiaptomus hessei (Copepoda: Calanoida) on natural particles in a tropical lagoon (Ebrié, Côte d'Ivoire)

Cited by 34 publications

References 32 publications

Importance and nutritional value of large ciliates for the reproduction of Acartia clausi during the post spring-bloom period in the North Sea

Importance and nutritional value of large ciliates for the reproduction of Acartia clausi during the post spring-bloom period in the North Sea

Spatiotemporal variations of zooplankton community in a shallow tropical brackish lagoon (Sontecomapan, Veracruz, Mexico)

Temperature-dependent development and somatic growth in two allopatric populations of Acartia clausi (Copepoda: Calanoida)

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