Ontogenesis and functional morphology of the digestive system of the freshwater prawn, Macrobrachium amazonicum (Decapoda: Palaemonidae)

Queiroz, Luciano D.; Abrunhosa, Fernando Araújo; Maciel, Cristiana Ramalho

doi:10.1590/s1984-46702011000300014

Cited by 11 publications

(23 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…There is much information about the decapod digestive tract, particularly concerning to economically important species, such as palinurids, scyllarids and penaeids (Cox and Bruce 2003;Suthers and Anderson 2006;Abrunhosa and Melo 2008). Little information on the mouthparts or alimentary tract of the genus Macrobrachium Bate 1868 and other caridean prawns has been reported in the literature, as an example larvae of M. rosenbergii De Man, 1879 (Abrunhosa and Melo 2002) and M. amazonicum (Heller, 1862) (Queiroz et al 2011) and adults of M. malcolmsonii (Milne Edwards, 1844) (Patwardhan 1935a), M. acanthurus (Wiegmann, 1836) (Felgenhauer and Abele 1989) and M. carcinus (Lima et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Foregut morphology of Macrobrachium carcinus (Crustacea, Decapoda, Palaemonidae)

2016

View full text Add to dashboard Cite

Macrobrachium carcinus is a Brazilian native prawn with recognized potential for use in aquaculture activities. The aim of this study was to describe and illustrate in detail the morphology of the M. carcinus foregut. The foregut comprises the mouth, esophagus and stomach. It is lined by a simple cylindrical epithelium overlain by chitinous cuticle. The cardiac chamber is well supplied with muscles and lined with chitin thickened in places to form a complex, articulating set of ossicles. The ossicles and setae inside the cardiac chamber seem to direct the food movement through the cardiac chamber and sort the food according to particle size as digestion takes place. Twenty-one basic ossicles were observed in the stomach of M. carcinus and are divided into seven categories, reflecting their presumed functional roles. The significance of these morphological features is discussed in terms of its implication in feeding management that can support future commercial farms of this important fishery resource. KEYWORDS: Freshwater prawn, aquaculture, digestive system, feeding management.Morfologia do estômago do camarão Macrobrachium carcinus (Crustacea, Decapoda, Palaemonidae) RESUMOMacrobrachium carcinus é uma espécie nativa com reconhecido potencial para uso em cultivos aquícolas, porém com poucas informações sobre suas estratégias alimentares. O objetivo deste estudo foi descrever e ilustrar em detalhes a morfologia do estômago de M. carcinus e fazer uma breve associação com seu hábito alimentar. O trato digestivo compreende a boca, esôfago e estômago (câmara cardiáca e câmara pilórica) o qual é revestido por um epitélio cilíndrico simples recoberta por uma fina cutícula quitinosa. A câmara cardíaca é bem provida de músculos e margeada por quitina espessada em áreas formando um conjunto complexo de ossículos articulados. Os ossículos e cerdas no interior da câmara cardíaca parecem dirigir a circulação de alimentos através da câmara cardíaca e triar o alimento de acordo com o tamanho de partícula no decorrer da digestão. Um total de 21 ossículos básicos fazem parte do estômago de M. carcinus e estão divididos em sete categorias de acordo com suas funções presumíveis. O significado destas características morfológicas é discutido em termos de sua implicação no manejo alimentar que podem apoiar futuras explorações comerciais deste importante recurso pesqueiro. PALAVRAS-CHAVE: Pitu, aquicultura, sistema digestivo, estratégia alimentar. (Crustacea, Decapoda, Palaemonidae) Foregut morphology of Macrobrachium carcinus

show abstract

Section: Introductionmentioning

confidence: 99%

Foregut morphology of Macrobrachium carcinus (Crustacea, Decapoda, Palaemonidae)

2016

View full text Add to dashboard Cite

show abstract

“…Hayd et al (2008) have described the principal molt stages and Anger and Hayd (2009, 2010) studied the ontogenetic changes in early larval feeding and growth. The first‐stage larvae present obligatory lecithotrophy and feeding behavior is initiated after molting to the second stage (Araujo and Valenti 2007; Anger et al 2009; Queiroz et al 2011). The Stage III zoea are zooplanktotrophic (Anger and Hayd 2009).…”

mentioning

confidence: 99%

“…The Stage III zoea are zooplanktotrophic (Anger and Hayd 2009). The functional morphology of the foregut and mouthparts of the species has been investigated in the larvae and postlarvae (PL) of this species (Queiroz et al 2011). However, data on the Amazon river prawn are scarce and many aspects of the farming of this species have yet to be established effectively, including the feeding management of the larvae.…”

mentioning

confidence: 99%

The Predation of Artemia Nauplii by the Larvae of the Amazon River Prawn, Macrobrachium amazonicum (Heller, 1862), is Affected by Prey Density, Time of Day, and Ontogenetic Development

Maciel¹,

New²,

Valenti³

2012

J World Aquaculture Soc

Self Cite

View full text Add to dashboard Cite

The present study analyzed the effects of prey density, the time of day, and ontogenetic development on the predation of Artemia nauplii by the larvae of the Amazon river prawn, Macrobrachium amazonicum, as well as possible synergy among these factors. Larvae were raised in 120-L tanks with biological filter systems, and fed on recently hatched Artemia nauplii, using two feeding management protocols: (a) fed once per day at 2000 h (high density -HD) and (b) half of the ration provided at 2000 h, complemented at 0800 h the following day by a replacement of the nauplii consumed up to a maximum of the full ration (low density with replacement -LDWR). Each treatment consisted of six replicates. The consumption of nauplii was estimated prior to the feeding times. Consumption varied according to time of day, ontogenetic development, and feeding protocol. The larvae ingested more nauplii during the daytime at most developmental stages. Ingestion rates were similar during the day under both treatments, but at night the higher density of prey in the HD treatment caused a higher encounter rate and increased ingestion of nauplii by the larvae. Among the performance indicators only survival was greater in HD in comparison with LDWR; productivity and dry weight were similar. The results indicate a circadian trophic rhythm in M. amazonicum, with the encounter rate being an important mechanism for the capture of prey during the night. A second mechanism -probably the visual system -aids the perception of prey during the daytime. Based on these results, we suggest that feeding captive Amazon river prawn larvae only once a day would be appropriate and economically beneficial. Further work is necessary to determine the most effective time that this single feed should be applied.

show abstract

“…There are no studies on digestive enzymes of M. amazonicum larvae. Nevertheless, the foregut of the larvae undergoes diverse morphological changes during larval development (Queiroz et al, 2011). Artemia is essential for M. amazonicum larval development, although the combination with inert diet increases survival and metamorphosis.…”

Section: Discussionmentioning

confidence: 99%

Effects of feeding strategy on larval development of the Amazon River prawn Macrobrachium amazonicum

Araujo

Valenti

2017

R. Bras. Zootec.

View full text Add to dashboard Cite

-Effects of four feeding regimes on the development and feed intake, survival, productivity, and growth of Macrobrachium amazonicum larvae were investigated. Larvae were fed from stage II to IX, as follows: Artemia nauplii + inert diet during the entire larval cycle (AIn); Artemia nauplii for the entire larval cycle + inert diet from stage V onward (A/AIn); Artemia nauplii until stage IV + inert diet from stage IV onward (A/In); and only inert diet for the entire larval cycle (In). Each feeding regime (treatment) was carried out in three 50-L rectangular black tanks, set up in a recirculating system, filled with 10 salinity brackish water, and stocked at 81.8±0.8 larvae/L. The larval stage index, occurrence of Artemia nauplii and/or inert feed into the digestive tract, survival (number of larvae and postlarvae), productivity (number of postlarvae/L), and weight gain (mg) were evaluated. Larval development was similar in treatments AIn, A/Ain, and A/In, but was delayed in treatment In. Artemia nauplii were ingested by larvae irrespective of developmental stages, while inert feed was ingested only from stage III onward. Survival and productivity were higher in treatment AIn and decreased according to the number of days larvae were fed Artemia nauplii. Macrobrachium amazonicum larvae are omnivorous and polytrophic, but live feed is essential in the first stages and act as a complementary diet in the last half of larval cycle. There is a potential for inert diet to replace Artemia in the last phase of development if the nutrient composition matches larvae requirements. The combination of Artemia nauplii and inert diet during all larval cycles is the best management to maximize productivity.

show abstract

Ontogenesis and functional morphology of the digestive system of the freshwater prawn, Macrobrachium amazonicum (Decapoda: Palaemonidae)

Cited by 11 publications

References 17 publications

Foregut morphology of Macrobrachium carcinus (Crustacea, Decapoda, Palaemonidae)

Foregut morphology of Macrobrachium carcinus (Crustacea, Decapoda, Palaemonidae)

The Predation of Artemia Nauplii by the Larvae of the Amazon River Prawn, Macrobrachium amazonicum (Heller, 1862), is Affected by Prey Density, Time of Day, and Ontogenetic Development

Effects of feeding strategy on larval development of the Amazon River prawn Macrobrachium amazonicum

Contact Info

Product

Resources

About