Feeding frequency mediates aggression and cannibalism in larval hatchery-reared spotted seatrout, Cynoscion nebulosus

Manley, Christopher Burton; Rakocinski, Chet F.; Lee, Phillip G.; Blaylock, Reginald B.

doi:10.1016/j.aquaculture.2014.11.012

Cited by 23 publications

(20 citation statements)

References 30 publications

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“…Intracohort aggression has often been linked to the mortality of aquaculture organisms (Manley et al 2015). It is hormonally regulated via different modulators (Table 2), and is the basis of cannibalistic behaviour (Hecht and Appelbaum 1988;Folkvord 1997;Yang et al 2015;Vallon et al 2016).…”

Section: Hormonal Backgroundmentioning

confidence: 99%

Intracohort cannibalism and methods for its mitigation in cultured freshwater fish

Naumowicz

Pajdak

Terech-Majewska

et al. 2017

Rev Fish Biol Fisheries

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Cannibalism is a common phenomenon that occurs in over 30 fish families. Most of the species are valuable objects of aquaculture and cannibalism is highly undesirable. Cannibalism is an aggressive behaviour, which can be caused by stress induced by various population and environmental factors and can occur in two main forms: early larval and late juvenile (or adult). Each of these forms can lead to severe losses of stock. Losses are caused not only by fish eating each other, but also by an increase in the number of infections (the result of body surface damage). It is important to understand the phenomenon of cannibalism in order to properly prevent, diagnose and reduce it. The main aim of this study was to present and examine some of the well-examined methods of cannibalism mitigation. Most of the methods consist of creating rearing conditions similar to natural conditions and to reduce stress. Moreover, because of large interspecies differences, similar methods can result in different effects depending on the species. Additional studies are needed to better understand the biology of each cultured species with particular emphasis on the impact of domestication, as well as to improve fish rearing conditions.

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Section: Hormonal Backgroundmentioning

confidence: 99%

Intracohort cannibalism and methods for its mitigation in cultured freshwater fish

Naumowicz

Pajdak

Terech-Majewska

et al. 2017

Rev Fish Biol Fisheries

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“…Therefore, the proper use of feeding regimes is an efficient way to reduce costs and improve fish growth (Lee & Pham, 2010;Lawrence et al, 2012). Feeding frequency may also play a role in mediating aggression and cannibalism (Manley et al, 2015;Ribeiro et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Performance of common snook subjected to different feeding frequencies and rates using automatic feeders

Herrera

Santos

Sousa

et al. 2019

Pesq. agropec. bras.

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The objective of this work was to evaluate the growth performance of common snook (Centropomus undecimalis) subjected to different feeding rates and frequencies using automatic feeders. Two experiments of 60 days each were carried out. In the first one, 20 fishes per tank were distributed in three feeding rates of: 5, 10, and 15% body weight per day. In the second experiment, 20 fishes per tank were distributed in nine tanks, in three feeding frequency: once a day, three times a day, and six times a day. Water parameters were maintained at the recommended level for the species. Final weight, body weight gain, specific growth rate, and feed conversion rate did not differ significantly between the 10 and 15% feeding rates. However, both rates differed from the 5% one. The feeding frequency of six times a day resulted in better values for final weight, final biomass, body weight gain, and specific growth rate. Therefore, common snook fingerlings should be fed at the feeding rate of 10% body weight per day, six times a day, in order to achieve the best growth performance.

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“…If fish are unwilling or unable to ingest the diet to which they are being weaned, cannibalism can become a significant problem, which has also been extensively studied (e.g. Baras, Kestemont & Mélard ; Kestemont, Jourdan, Houbart, Mélard, Paspatis, Fontaine, Cuvier, Kentouri & Baras ; Baras, Hafsaridewi, Slembrouck, Priyadi, Moreau & Pouyaud ; Manley, Rakocinski, Lee & Blaylock ) due to its impact on hatchery output.…”

Section: Introductionmentioning

confidence: 99%

Weaning methods using formulated feeds for snakehead ( Channa striata and Channa micropeltes ) larvae

Hien

Tam

et al. 2017

Aquac Res

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The culture of snakehead fish (Channa striata and Channa micropeltes) in Vietnam is limited, and snakehead culture has been banned in Cambodia, because traditional practices include capture of fingerlings from the wild as seed, as well as capture of small-size (also known as trash fish or lowvalue) fish. As hatchery breeding technology has improved, we investigated the optimal weaning practices for these two species. Both laboratory experiments and farm trials were conducted. For C. striata, the optimal weaning procedure is to begin at 17 days after hatch (dah) and wean the fish at 10% replacement of live feed with formulated feed per day. However, for C. micropeltes, the optimal procedure is to wait until 40 dah to begin weaning and then to wean the fish with a 10% replacement of live feed with formulated feed every 3 days. These results should enable farmers to domesticate snakehead culture in Vietnam and Cambodia and eliminate reliance on fish captured from the wild as both seed and feed.

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Feeding frequency mediates aggression and cannibalism in larval hatchery-reared spotted seatrout, Cynoscion nebulosus

Cited by 23 publications

References 30 publications

Intracohort cannibalism and methods for its mitigation in cultured freshwater fish

Intracohort cannibalism and methods for its mitigation in cultured freshwater fish

Performance of common snook subjected to different feeding frequencies and rates using automatic feeders

Weaning methods using formulated feeds for snakehead ( Channa striata and Channa micropeltes ) larvae

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