Effect of stocking density and algal concentration on production parameters of calanoid copepod Acartia bilobata

Chintada, Balakrishna; Ranjan, Ritesh; Santhosh, B; Megarajan, Sekar; Ghosh, Shubhadeep; Rani, A. M. Babitha

doi:10.1016/j.aqrep.2021.100909

Cited by 6 publications

(14 citation statements)

References 56 publications

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“…However, to avoid overcrowding and negative outcomes, the maximum rearing densities must be determined for this species. High rearing densities are known to have a negative impact on growth, behavior [ 82 ], fertilization [ 83 ], adult cannibalism of nauplii [ 2 , 84 , 85 , 86 , 87 ], female reproductive capacity, egg hatching rate, and to induce the collapse of the reared stocks [ 84 ], causing the nauplii population to decline. Holm et al [ 88 ] reported that maintaining a high density of O. nana males minimizes mate-seeking behavior after a period of competition for food and starvation, which also may limit the growth of the species [ 89 ].…”

Section: Discussionmentioning

confidence: 99%

Influence of Microalgae Diets on the Biological and Growth Parameters of Oithona nana (Copepoda: Cyclopoida)

Huanacuni

Pepe-Victoriano

Lora‐Vilchis

et al. 2021

Animals

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Several species of the planktonic free-living genus Oithona have been successfully used in the larviculture of marine fish and shrimp. However, few studies have been published that allow us to estimate the potential of Oithona nana culture under controlled conditions. This work evaluated the effect of the microalgae Isochrysis galbana and Chaetoceros calcitrans as single (200,000 cells/mL) and mixed diets (100,000 + 100,000 cells/mL) on population and individual growth, ingestion rate, number of spawnings, fertility, development time by stage, and sex ratio of O. nana. We cultured this copepod at 28 ± 0.5 °C, 35 PSU salinity, 125 lux, and 12:12 photoperiod. Results showed that diet had no effect on the final population level (6273–7966 ind/L) or on individual growth, nor on sex ratio, with less males than females. With C. calcitrans, O. nana had a higher filtration rate (57 ng C/ind/day). On the other hand, a mixed diet induced a higher number of spawns (0.4 events/day) and nauplii per spawn (23 ind). Similarly, a single or mixed diet, containing I. galbana, accelerated the development rate by 6.33–7.00 days. We concluded that O. nana can be cultured with both microalgae, indicating its potential use in an intensive system for production. However, more research is required to improve the productivity of O. nana rearing.

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Section: Discussionmentioning

confidence: 99%

Influence of Microalgae Diets on the Biological and Growth Parameters of Oithona nana (Copepoda: Cyclopoida)

Huanacuni

Pepe-Victoriano

Lora‐Vilchis

et al. 2021

Animals

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“…The equivalent carbon content (pg/cell) of each species was given in Table 1. The stocking densities and feed concentrations were selected based on our previous studies (Chintada et al, 2021). The development stages and sex of copepods were identified using the available keys for the species A. bilobata (Abraham, 1970).…”

Section: Methodsmentioning

confidence: 99%

Evaluation of suitable micro‐algal diets for intensive culture of the calanoid copepod Acartia bilobata

Chintada

Ranjan

Rani

et al. 2022

Aquaculture Research

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Copepods are alternative live feed in marine fish hatcheries, and the quality and type of micro‐algal diets influence their culture productivity. Three algal species of different groups including prymnesiophyte: Isochrysis galbana (Iso), the diatom: Chaetoceros muelleri (Cht) and eustigmatophyte: Nannochloropsis occulata (Nan) were fed to the calanoid copepod Acartia bilobata. Selected algae were offered as mono‐algal diets: T1‐Iso, T2‐Cht and T3‐Nan or as mixed algal diets: T4‐Nan + Cht, T5‐Nan + Iso, T6‐Iso + Cht and T7‐Iso + Cht + Nan. Reproductive parameters, egg production, hatching success, nauplii and copepodite survival, development and first maturity, were closely monitored. Results illustrated that I. galbana was the most suitable diet for this copepod species, supporting higher average relative egg production (5631.62 ± 133.49 egg L−1 day−1), hatching success (96.32 ± 1.40%) and superior adult survival (44.44 ± 3.20%). Different algal diets influenced the nauplii and copepodite survival rate. Maximum survival to adults (56.67 ± 3.78%) and shortened development time (5.75 ± 0.12 days) and time to first maturity (4.50 ± 0.12 days) were observed when fed with I. galbana. The groups fed with C. muelleri exhibited lower survival (6.67 ± 0.67%) during development into adults, and the group fed with N. occulata alone or with C. muelleri did not survived till the adults. Amongst seven algal diets tested, I. galbana was found ideal for maximizing culture productivity, and hence recommended for intensive culture of A. bilobata.

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“…Calanoid copepods belonging to the genus Acartia are widely distributed throughout the world ocean and are known to be a dominant component in the planktonic food web in coastal waters. Because of their suitability and potential as a primary prey of larval fish, they have been intensively studied as a live feed product in marine fish production (Ajiboye et al, 2011;Chintada et al, 2021;Sarkisian et al, 2019;Støttrup et al, 1986;Toledo et al, 2005). However, there are many technical problems in intensive mass culture caused by the high culture density such as the water quality degradation due to metabolic product accumulation, higher possibility of egg and nauplii cannibalism and rapid reduction of food resources (Drillet et al, 2014;Jepsen et al, 2015;Sarkisian et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

“…In the intensive culturing of copepods, in addition to the effect of possible food limitation (Vu et al, 2017), crowding stress also occurs due to physical disturbance and increased number of collisions among the copepods (Chintada et al, 2021;Miralto et al, 1996), resulting in the suppression of productivity. Crowding stress, or overcrowding, has been associated with the overproduction of reactive oxygen species (ROS) which leads to oxidative stress, cell damage and eventually cell death.…”

Section: Introductionmentioning

confidence: 99%

“…As diatoms are also rich in antioxidant compounds (i.e. carotenoid fucoxanthin, phenolic), their antioxidant potential certainly contributes to improving copepod production, particularly under stressful conditions (Caramujo et al, 2012; Weaver et al, 2018), while its effect probably differs depending on the combination of prey and predators due to the metabolic function, absorption, digestibility and physiological response of the specific organism (Martins et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

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Effect of newly isolated high antioxidant diatom on the reproduction and stress tolerance of the marine copepod, Acartia erythraea under crowding stress

Rahman

Teh

Katayama

et al. 2022

Aquaculture Research

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This study evaluated the effect of antioxidants on a tropical coastal copepod, Acartia erythraea, under crowding stress by using the high‐antioxidant, diatom algal strain Thalassiosira weissflogii TRG10‐P105 (TW P105) as feed. This newly isolated diatom strain has higher antioxidants than the generic strain Thalassiosira weissflogii (generic TW), which is used as a common feed in copepod culture. Incubation experiments were carried out under various crowding levels (100, 250, 500 and 1000 ind/L). Acartia erythraea, on Day 1, showed comparable and highest egg production and hatching success rate (ca. 68%) at Day 1 with the lowest initial stocking density (100 inds/L) regardless of prey type, indicating both algal strains have similar nutritional potential for egg production under less stressful conditions. However, declining reproduction with increasing initial stocking density through the experimental period was more obvious in copepods with generic TW than in those with TW P105. At initial stocking density of 500–100 inds/L, no egg hatching was observed with generic TW during the latter half of the experiments, while those with TW P105 showed a constantly higher hatching success (30%–80%) during the same period. Overall, A. erythaea fed on TW P105 had much better stress tolerance at high initial stocking density (~1000 inds/L) with 2–3 times higher cumulative number of egg and nauplii compared with generic TW. This result implies that the high‐antioxidant diatom algal diet is more effective in ameliorating the adverse effects caused by high density cultivation of copepods than a diet of cogeneric strains.

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Effect of stocking density and algal concentration on production parameters of calanoid copepod Acartia bilobata

Cited by 6 publications

References 56 publications

Influence of Microalgae Diets on the Biological and Growth Parameters of Oithona nana (Copepoda: Cyclopoida)

Influence of Microalgae Diets on the Biological and Growth Parameters of Oithona nana (Copepoda: Cyclopoida)

Evaluation of suitable micro‐algal diets for intensive culture of the calanoid copepod Acartia bilobata

Effect of newly isolated high antioxidant diatom on the reproduction and stress tolerance of the marine copepod, Acartia erythraea under crowding stress

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