Functional responses and feeding rates of<i>Mesocyclops pehpeiensis</i>Hu (Copepoda) fed different diets (rotifers, cladocerans, alga and cyanobacteria)

Sarma, S. S. S.; Jiménez-Contreras, Jorge; Fernández, Rocío; García-García, G.

doi:10.1080/00222933.2012.747636

Cited by 21 publications

(12 citation statements)

References 18 publications

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“…To determine the food saturation concentrations for copepods, the study of functional responses is a suitable method that was used for several decades (e.g., Holling, 1966;Colin & Dam, 2007;Sarma, Jimenez-Contreras, Fernandez, Nandini, & Garcia-Garcia, 2013;Saiz, Griffell, Calbet, & Isari, 2014;Helenius & Saiz, 2017;Kiørboe, Saiz, Tiselius, & Andersen, 2018). The calanoid copepod genus Pseudodiaptomus has been commonly cultured with several microalgal species such as Chaetoceros muelleri (Puello-Cruz, Mezo-Villalobos, Gonzalez-Rodriguez, & Voltolina, 2009), Isochrysis galbana (Beyrend-Dur et al, 2011;Puello-Cruz et al, 2009), Tetraselmis chui (Rayner, Hojgaard, Hansen, & Hwang, 2017) and Skeletonema costatum (Lehette, Ting, Chew, & Chong, 2016).…”

Section: Introductionmentioning

confidence: 99%

“…However, it is not known how the feeding rate of this species changes in response to food density. Additionally, the majority of studies have focused on the feeding of female copepods (e.g., Colin & Dam, 2007;Sarma et al, 2013;Saiz et al, 2014), while the feeding rate of male copepods has been rarely investigated (but see Gréve, Almeda, Lindegren, & Kiorboe, 2017). This is typically because the female copepods are more abundant, long-lived (Kiørboe, Ceballos, & Thygesen, 2015;Sichlau & Kiørboe, 2011) and constitute a larger fraction and biomass in the culture than males.…”

Section: Introductionmentioning

confidence: 99%

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Temperature-and sex-specific grazing rate of a tropical copepod Pseudodiaptomus annandalei to food availability: Implications for live feed in aquaculture

Doan

Nguyen

et al. 2018

Aquac Res

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To determine the optimal food concentrations for the mass culture of the tropical copepod Pseudodiaptomus annandalei at relevant temperatures, we conducted three functional response experiments. In these experiments, we quantified the grazing rate via the faecal pellet production of adult males and females. They were fed for 6 hr on one of three commonly used microalgal species in aquaculture: Chaetoceros muelleri, Isochrysis galbana and Tetraselmis chui at concentrations of 12.5–3,200 μg C L−1 and three temperatures 25, 30 and 35°C. The number of pellets (PP) and the total volume of pellets (SPP) of both sexes increased rapidly with the increase in the microalgal concentrations until maximal pellet production (PPmax or SPPmax) was obtained, where females showed a consistently higher SPP than males. This pattern was similar for all three microalgal species. Males showed inconsistent PP and SPP in response to algae and temperatures. For females, they showed two clear patterns: a higher PP and SPP with increasing temperature from 25 to 30°C, then a lower PP and SPP at 35°C. Our study provides fundamental knowledge of pellet production to determine the food requirements of P. annandalei under different temperatures that are essential for designing the technical protocol for biomass culture.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Temperature-and sex-specific grazing rate of a tropical copepod Pseudodiaptomus annandalei to food availability: Implications for live feed in aquaculture

Doan

Nguyen

et al. 2018

Aquac Res

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“…Copepods are generalist predators that consume a wide variety of zooplankton (11,21), many of which may contain endosymbionts (22,23). The global distribution of copepods in aquatic food webs suggests that the predator catalyst mechanism may be important in generating virus blooms in a wide range of systems.…”

Section: Discussionmentioning

confidence: 99%

Predators catalyze an increase in chloroviruses by foraging on the symbiotic hosts of zoochlorellae

DeLong

Al-Ameeli

Duncan

et al. 2016

Proc. Natl. Acad. Sci. U.S.A.

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Virus population growth depends on contacts between viruses and their hosts. It is often unclear how sufficient contacts are made between viruses and their specific hosts to generate spikes in viral abundance. Here, we show that copepods, acting as predators, can bring aquatic viruses and their algal hosts into contact. Specifically, predation of the protistParamecium bursariaby copepods resulted in a >100-fold increase in the number of chloroviruses in 1 d. Copepod predation can be seen as an ecological “catalyst” by increasing contacts between chloroviruses and their hosts, zoochlorellae (endosymbiotic algae that live within paramecia), thereby facilitating viral population growth. When feeding, copepods passedP. bursariathrough their digestive tract only partially digested, releasing endosymbiotic algae that still supported viral reproduction and resulting in a virus population spike. A simple predator–prey model parameterized for copepods consuming protists generates cycle periods for viruses consistent with those observed in natural ponds. Food webs are replete with similar symbiotic organisms, and we suspect the predator catalyst mechanism is capable of generating blooms for other endosymbiont-targeting viruses.

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“…During the same period, very few individuals of cladocerans and copepods were found in the river. Some exotic and invasive species of zooplankton such as the Asiatic copepod, Mesocyclops pehpeiensis , Notholca lieppeterseni , first reported from Norway, and the Chinese endemic rotifer Lecane yatseni have also been found in rivers (Nandini et al, ; Sarma, Jiménez‐Contreras, Fernández, Nandini, & García‐García, ). Among phytoplankton, the dominant groups in rivers are diatoms, chlorophytes, and cyanobacteria (Gaytán‐Herrera, Cuna‐Pérez, & Ramírez‐García, ).…”

Section: Introductionmentioning

confidence: 99%

Planktonic indicators of water quality: A case study in the Amacuzac River Basin (State of Morelos, Mexico)

Nandini

Ramı́rez-Garcı́a

Gutierrez-Ochoa

2019

River Research & Apps

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Planktonic organisms are good indicators of water quality but are rarely used in Mexican riverine studies in spite of the high level of contamination in these lotic waters. In this study, we focused on the plankton of the river Amacuzac in Mexico and a large saline waterbody, Lake Tequisquitengo, which is located in the Amacuzac river basin. We collected samples at three sites in the River Amacuzac and one at Lake Tequisquitengo from May 2015 to March–April of 2016. We analysed the physicochemical variables, coliform bacteria, and biological oxygen demand levels. We also quantified phytoplankton and zooplankton. Our results indicate that the study sites are mesotrophic with high densities of diatoms and cyanobacteria. Among the zooplankton, the dominant organisms were rotifers. The constancy of planktonic taxa was high in the lake but low in the river. The Descy index ranged from 2.9 to 4.5 in the river and from 4.0 to 5.0 in the lake. The saprobic index shows that the system is β‐mesosaprobic. The species diversity was higher in the river than in the lake. Our study shows that plankton can efficiently be used to evaluate the water quality in rivers and lakes.

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Functional responses and feeding rates ofMesocyclops pehpeiensisHu (Copepoda) fed different diets (rotifers, cladocerans, alga and cyanobacteria)

Cited by 21 publications

References 18 publications

Temperature-and sex-specific grazing rate of a tropical copepod Pseudodiaptomus annandalei to food availability: Implications for live feed in aquaculture

Temperature-and sex-specific grazing rate of a tropical copepod Pseudodiaptomus annandalei to food availability: Implications for live feed in aquaculture

Predators catalyze an increase in chloroviruses by foraging on the symbiotic hosts of zoochlorellae

Planktonic indicators of water quality: A case study in the Amacuzac River Basin (State of Morelos, Mexico)

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