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Zhang, Bo; Wang, Lin; Wang, Runlin Xu Wang Yajun; Xu, Runlin Xu

doi:10.4194/trjfas.2010.0408

Cited by 11 publications

(6 citation statements)

References 25 publications

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“…niloticus (Azim et al, 2003), and in golden mullet Liza aurata (Richard et al, 2010). The decreased growth of fish with increasing stocking density may be due to intraspecific competition for food and space (Biswas et al, 2013; Bolasina et al, 2006; Chakraborty & Mirza, 2007; Coulibaly et al, 2007; Naderi et al, 2017; Uddin et al, 2007; Zhang et al, 2010). In another growth study, increased combined net yield and decreased individual harvesting weight of prawn ( Macrobrachium rosenbergii ) and tilapia ( O .…”

Section: Discussionmentioning

confidence: 99%

“…A microbial biofilm is composed of the colonization of diverse groups of micro‐ and planktonic organisms such as bacteria, protozoa, fungi and algae. Biofilms are found to improve water quality parameters and alleviate harmful effects of the overloaded population (Arnold et al, 2009; Azim et al, 2003; Krishnani et al, 2013; Krishnani et al, 2009; Krishnani & Kathiravan, 2010; Krishnani, Parimala, Gupta, Azad, et al, 2006; Krishnani et al, 2006; Shilta et al, 2016); biofilm acts as a natural planktonic food source for reared organisms (Langis et al, 1988) and augment immunity of aquatic animal against pathogens (Anand et al, 2015; Zhang et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

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Effect of stocking density on growth performance, plankton abundance, body composition and haematological parameters of Etroplus suratensis (Bloch, 1790)

Yadav

Chavan²,

Chadha

et al. 2021

Aquaculture Research

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A seed rearing experiment was attempted to evaluate the effects of stocking densities in the biofilm-based system reared with pearlspot, Etroplus suratensis on different aquaculture parameters. Pearlspot advanced fry of size (4.67 ± 0.04 cm/1.71 ± 0.03 g) stocked at four different stocking densities viz 50 fish (T 1 ); 100 fish (T 2 ); 150 fish (T 3 ) and 200 fish (T 4 ) m −3 in the biofilm-based rearing system and at the rate of 150 fish m −3 in the clear water fed (CWF) system tanks. The total ammonia nitrogen and dissolved oxygen levels in biofilm tanks with different stocking density were significantly lower than CWF. Diatom was found as dominant plankton in all biofilm treatment tanks in water as well as on substrate. The growth parameters were found to significantly decrease with increasing stocking density in the biofilm-based rearing system. The significant highest individual growth parameters and significantly lowest fish biomass were found in T 1 . Final fish biomass was found to increase with increasing stocking density up to 150 advanced fry m −3 and then reduced due to decreased survival. Body composition analysis of E. suratensis showed increased protein and decreased lipid levels in all biofilm-based rearing system treatments at different stocking densities compared with clear water fed system. The present investigation findings on plankton abundance, growth, body composition and blood parameters at different stocking densities will provide guidelines for selecting appropriate stocking density for pearlspot advanced fry to fingerling rearing in a low saline biofilm-based system without providing a supplementary diet.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of stocking density on growth performance, plankton abundance, body composition and haematological parameters of Etroplus suratensis (Bloch, 1790)

Yadav

Chavan²,

Chadha

et al. 2021

Aquaculture Research

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“…Introducing artificial substrata that improve microbial attachment can significantly promote the growth of aquaculture species while restoring water properties in situ (Bo et al, 2010; Audelo-Naranjo, Martínez-Córdova & Voltolina, 2010; Schveitzer et al, 2013; Kumar et al, 2015; Li et al, 2017). The main ways that artificial substrata promote fish growth include the following: reducing ammonia and nitrite concentrations in farming water through the assimilation and dissimilation of microorganisms that adhere to the surface of artificial substrata (Arndt et al, 2002; Zhang et al, 2019); providing natural feed to farming organisms through the presence of adherent microorganisms on the surface of artificial substrata, such as bacteria, fungi, algae, protozoa, and zooplankton (Azim et al, 2002); reducing energy consumption caused by stress reactions through the physical shelter provided by these structures (Huang et al, 2013; Pandey, Bharti & Kumar, 2014).…”

Section: Introdutionmentioning

confidence: 99%

Artificial substrata increase pond farming density of grass carp (Ctenopharyngodon idella) by increasing the bacteria that participate in nitrogen and phosphorus cycles in pond water

Wang

et al. 2019

PeerJ

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Aquaculture has become a primary method to produce various aquatic products, and intensive aquaculture technologies have become commercially important. To improve the efficiency of intensive aquaculture per unit area without reducing the growth rate of cultured fish, the present study explored the potential of artificial substrata in ponds. Our results showed that the concentrations of total nitrogen (TN) and total phosphorous (TP) in the ponds with different stocking densities of grass carp were lower than those in the control group in most cases. Further, the feed conversion rate of grass carp was significantly reduced by introducing these artificial substrata, and the culture density could be significantly increased without reducing the growth rates of these fish. Artificial substrata also significantly enriched specific bacteria and changed the structure of the microbiota in pond water. The relative abundance of Proteobacteria was significantly increased, and bacteria closely related to N and P cycles, such as Hyphomicrobium, Chitinimonas, Legionella, Shewanella, Roseiflexus, and Planktothrix were significantly enhanced. These results showed that the artificial substratum could increase TN and TP removal in aquaculture pond water by enriching N and P cycle-related bacteria, thus significantly increasing the specific growth rate of grass carp and significantly reducing their feed conversion rate. Finally, the stocking density of grass carp and the yield per unit area of pond could be increased without reducing the growth rate.

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“…The survival and performance of the Pacific shrimp (Litopenaeus vannamei), for example, were increased with the use of substrates (Zhang et al, 2010). Yet, the type of substrate influenced the movement of the starfish (Acanthaster cf.…”

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confidence: 99%

Food‐related substrate preference in juveniles seastar Echinaster (Othilia) brasiliensis (Müller & Troschel,1842) in captivity

Maganhe¹,

Andrade²,

Camilo³

et al. 2023

Zoo Biology

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There are only a few studies that describe the larval development of Echinaster or aspects on culture systems for the genus. For starfishes, the choice of suitable substrates has received special attention since it could influence the acid–base balance of the water, movement capacity and predation rate. The objective of this study was to evaluate the ideal food‐related substrate for the rearing of juvenile Echinaster brasiliensis. A batch of fertilized eggs released in spontaneous spawning was collected and kept in a plankton‐kreisel until metamorphosis. Data on preference of food‐related substrate was recorded for 10 weeks from day 58 post‐release. From release to 132 days old, arm length increased from 0.81 mm to 1.31 ± 0.03 mm. Considering the sudden increase in arm length (AL), it was estimated that feeding started around 40 days of age. Regarding food‐related substrate preferences, biofilm grown on “rocks” showed a significant difference among other treatments, adding up to 50% of preference (p < .05). For sponge and biofilm from bio media, there was no statistical difference for the whole period. In this study, sponges showed to be the least preferred food‐related substrate for post‐settlement juveniles. Considering that Echinaster and other starfish are commonly maintained on a diet of collected or cultured sponges, difficulties in sourcing a ready supply throughout the year represent limitations to their sole use within commercial or laboratory‐scale production. In this sense, the use of biofilm from biological media for the feeding of juvenile starfish is not yet reported in the literature and showed to be an easy and promising option.

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Untitled

Cited by 11 publications

References 25 publications

Effect of stocking density on growth performance, plankton abundance, body composition and haematological parameters of Etroplus suratensis (Bloch, 1790)

Effect of stocking density on growth performance, plankton abundance, body composition and haematological parameters of Etroplus suratensis (Bloch, 1790)

Artificial substrata increase pond farming density of grass carp (Ctenopharyngodon idella) by increasing the bacteria that participate in nitrogen and phosphorus cycles in pond water

Food‐related substrate preference in juveniles seastar Echinaster (Othilia) brasiliensis (Müller & Troschel,1842) in captivity

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