Ecologia trófica de Portunus spinimanus Latreille (Decapoda, Portunidae) na Armação do Itapocoroy, Penha, Santa Catarina, Brasil

Branco, Joaquim Olinto; Lunardon-Branco, Maria José

doi:10.1590/s0101-81752002000300009

Cited by 8 publications

(4 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The relationship of an omnivorous diet to the robust mouthparts and absent gastric mill is comprehensible within this functional context. The presence of sand and other sediments in the stomach of Decapoda crustaceans has been reported by many authors, especially by accidental ingestion with preys (Branco and Moritz-Junior 2001;Branco and Lunardon-Branco 2002;Abayomi et al 2011). In M. carcinus, the sand ingestion can occur as a carbonate source or to help in the food maceration in response to the absence of gastric mill in the stomach, common in Macrobrachium species.…”

Section: Discussionmentioning

confidence: 90%

Natural diet and feeding habits of a freshwater prawn (Macrobrachium carcinus: Crustacea, Decapoda) in the estuary of the Amazon River

2014

View full text Add to dashboard Cite

Macrobrachium carcinus is a Brazilian native prawn with recognized potential for use in aquaculture activities. However, there is little information about the natural diet and feeding habits of this species. The aim of this study was the identification of the diet items of M. carcinus based on the analysis of the stomach contents. Specimens were collected in the Amazon River estuary between January 2009 and January 2010. The stomach analysis was carried out by using the frequency of occurrence (FO), methods of points (MP) and feeding index (FI). It was observed that prawns fed on detritus, animals and plant fragments as the most important food items. Sediment accounted for the main stomach content, accounting for 43.2% by the MP, 44.9% by FI and 100% by the FO. Sexual differences in feeding preferences were not found in this study, and seasonal differences in the frequency of items ingested by M. carcinus were not observed. The results indicated that M. carcinus can be considered omnivorous species, but with an important carnivorous component, similar to that found in other Macrobrachium species. KEYWORDS: food, stomach morphology, pitu, sand ingestion, palaemonid Dieta natural e hábito alimentar de um camarão de água doce (Macrobrachium carcinus: Crustacea, Decapoda) no estuário do rio Amazonas RESUMO Macrobrachium carcinus é uma espécie nativa com reconhecido potencial para ser utilizada na aquicultura, devido seu grande porte e seus bons índices de fecundidade e fertilidade. Apesar de seu evidente potencial para cultivo, poucas informações sobre dieta natural e habito alimentar desta espécie são conhecidos na literatura. O objetivo principal deste estudo foi identificar os itens da dieta natural de M. carcinus, com base na análise de conteúdo estomacal de espécimes coletados no estuário do rio Amazonas entre janeiro de 2009 e janeiro de 2010. A análise do conteúdo estomacal foi feita usando frequência de ocorrência (FO), método de pontos (MP) e índice alimentar (FI). Os dados revelaram que os componentes alimentares mais importantes desta espécie foram detrito, fragmentos animais e vegetais. O item sedimento constituiu o maior componente do estômago com 43,2% pelo MP, 44,9% pelo FI e 100% pela frequência de ocorrência, respectivamente. Diferenças sexuais entre as preferências alimentares sobre os alimentos não foram encontrados no presente estudo. Diferenças sazonais na frequência de itens ingeridos por M. carcinus não foram observados. Os resultados indicaram que M. carcinus pode ser considerado como um onívoro, mas com um componente importante carnívoro, semelhante ao encontrado em outras espécies de Macrobrachium. Outros aspectos sobre o hábito alimentar e morfologia do estômago são brevemente discutidos. PALAVRAS-CHAVE: alimento, morfologia do estômago, pitu, ingestão de areia, palaemonideo.

show abstract

Section: Discussionmentioning

confidence: 90%

Natural diet and feeding habits of a freshwater prawn (Macrobrachium carcinus: Crustacea, Decapoda) in the estuary of the Amazon River

2014

View full text Add to dashboard Cite

show abstract

“…The presence of sand and other sediments in the stomach of decapod crustaceans has been reported by many authors, especially by accidental ingestion with preys (Branco and Moritz-Jr 2001;Branco and Lunardon-Branco 2002;Jimoh et al 2011). Because M. carcinus does not has a true gastric mill, other calcified pieces, with possibly sustentation function, such as lateral cardiac plate (VII), posterior cardiac plate (VIII) and inferior lateral cardiac ossicle (IX), can help the maceration process.…”

Section: General Mechanism Of Digestionmentioning

confidence: 89%

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

“…In Armação do Itapocoroy (Penha, Santa Catarina State), Branco and Lunardon-Branco [ 58 ] have recorded a diet consisting of 24 items of plant and animal origin for Portunus spinimanus Latreille, 1819 (Portunidae), where crustaceans and fishes were observed to be the most abundant resources. Gaspar [ 59 ] asserts that, since the swimming crabs are voracious hunters and insatiable carnivorous, they prefer feeding on decomposing organisms and can digest all organic material; this eating habit (saprozoic) that makes the Portunid crabs major elements in the promotion and maintenance of cleanliness on brackish water areas and beaches.…”

Section: Resultsmentioning

confidence: 99%

Local knowledge of traditional fishermen on economically important crabs (Decapoda: Brachyura) in the city of Conde, Bahia State, Northeastern Brazil

Magalhães

Neto

Schiavetti

2012

J Ethnobiology Ethnomedicine

View full text Add to dashboard Cite

BackgroundThis article records the traditional knowledge of crab gatherers in the city of Conde, in the North Coast Region of Bahia State, Northeastern Brazil.MethodsData on biological and ecological aspects of economically important brachyuran crustaceans have been obtained from semi-structured interviews and in loco observations conducted from September 2007 to December 2009. A total of 57 fishermen of both genders, aged between 10 and 78 years have been interviewed (individually or collectively) in different contexts; interviewees were asked about aspects such as external morphology, life cycle, trophic ecology, and spatial and temporal distribution of the major economically important brachyuran crustaceans in the region. Seven fishing communities were visited: Siribinha, Sítio do Conde, Poças, Ilha das Ostras, Cobó, Buri and Sempre Viva. Data were analyzed by comparing the information provided by participants with those from the specialized academic literature.ResultsThe results show that artisanal fishermen have a wide ranging and well-grounded knowledge on the ecological and biological aspects of crustaceans. Crab gatherers of Conde know about growth and reproductive behavior of the animals they interact with, especially with regard to the three major biological aspects: “molt”, “walking dance” and “spawning”.ConclusionThis knowledge constitutes an important source of information that should be considered in studies of management and sustainable use of fishery resources in the North Coast Region of Bahia State.

show abstract

Ecologia trófica de Portunus spinimanus Latreille (Decapoda, Portunidae) na Armação do Itapocoroy, Penha, Santa Catarina, Brasil

Cited by 8 publications

References 10 publications

Natural diet and feeding habits of a freshwater prawn (Macrobrachium carcinus: Crustacea, Decapoda) in the estuary of the Amazon River

Natural diet and feeding habits of a freshwater prawn (Macrobrachium carcinus: Crustacea, Decapoda) in the estuary of the Amazon River

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

Local knowledge of traditional fishermen on economically important crabs (Decapoda: Brachyura) in the city of Conde, Bahia State, Northeastern Brazil

Contact Info

Product

Resources

About