Alimentação natural do camarão sete-barbas, Xiphopenaeus kroyeri (Heller) (Crustacea, Decapoda), na Armação do Itapocoroy, Penha, Santa Catarina

Branco, Joaquim Olinto; Júnior, Heder Cassiano Moritz

doi:10.1590/s0101-81752001000100004

Cited by 29 publications

(21 citation statements)

References 8 publications

(7 reference statements)

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“…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

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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

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Section: General Mechanism Of Digestionmentioning

confidence: 89%

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

2016

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“…Moreover, the feeding of these shrimps has varied according to their molt stage (Table 3) Studies on other genera also evidenced that shrimps are usually omnivorous and feed on a wide variety of food (Chong and Sasekumar, 1981;Collins, 1999;Branco and Junior, 2001;Spanjersberg et al, 2006;Carnevali et al, 2012). In summary, the results of the qualitative analysis of the stomach content of M. brasiliense, using the frequency of occurrence, have shown that the species has omnivorous habit, being registered diverse items, such as Insects remains particularly Chironomidade larvae, Diatoms, Oligochaeta, Plant fragment, filamentous Fungi, Sand, or Non-identified Organic Matter.…”

Section: Food Itemsmentioning

confidence: 99%

Evaluation of the feeding habits of Macrobrachium brasiliense (Heller, 1862) in the Curral de Arame stream (Dourados/Mato Grosso Do Sul, Brazil)

Melo

Nakagaki

2013

Nauplius

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-Macrobrachium brasiliense is a cosmopolitan shrimp species found in the channel of large rivers, streams, lakes, igapós and upland igarapés and can present diversity in the use of food resources. This study aimed to evaluate the feeding habits according to sex, molt stage, seasonal and spatial variation, and size class. Organisms were collected every three months from May 2011 to March 2012 at three sampling sites in the Curral de Arame Stream, including the upstream, middle, and downstream sections. Animals were sampled with 50x50cm sieves (1 mm mesh size) on the margin, and with "D" dip nets 40 cm wide (500 µm mesh size) at the bottom. Of each animal we examined the sex, molt stage, carapace length, and stomach content. Data were analyzed through the frequency of occurrence and compared by a chi-square test. Four-hundred-thirty shrimps were collected, of which 26.05% male and 73.95% female; of the total males, 69.64% showed content in the stomach, and females, 72.96%. Among food items stood out: Non-identified Organic Matter (90%), Insects (89.68%), Sand (87.10%), Algae (49.03%), Oligochaeta (29.68%), Fungi (26.77%) and Plant fragment (14.52%). No significant difference was detected in the diet between males and females, but there was a seasonal difference related to the molt stage, and differences along the space and per size classes, and it was concluded that the species has omnivorous habits.

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“…Parameters as consumer class, size, and age may infl uence the isotopic ratios of a given specimen, either alone as combined (Jennings et al 2002, Caut et al 2009). For the shrimp X. kroyeri the feeding habit may explain the lower δ 15 N values, once this species is a benthic feeder whose main feeding resources are small invertebrates and sediment (Branco and Moritz-Júnior 2001).…”

Section: Discussionmentioning

confidence: 99%

“…Heavier δ 13 C values in the shrimp X. kroyeri refl ected its benthic habit (Branco and Moritz-Júnior 2001), and lighter values in fi sh L. grossidens indicated its anadromous habit, with seasonal movements between fl uvial and marine areas for reproduction (Froese and Pauly 2015). Although δ 13 C is not usually applied to distinguish trophic levels, enrichment around ≤1‰ is generally expected from one trophic level to another (Peterson and Fry 1987).…”

Section: Discussionmentioning

confidence: 99%

Mercury bioaccumulation and isotopic relation between Trichiurus lepturus (Teleostei) and its preferred prey in coastal waters of southeastern Brazil

Bittar

Rezende

Kehrig

et al. 2016

An. Acad. Bras. Ciênc.

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The trophic transfer of total mercury (THg) and its bioaccumulation from prey species to the predator fi sh Trichiurus lepturus was analysed in coastal waters of southeastern Brazil to evaluate the trace element dynamic in this predator-prey system. The isotopic (δ 13 C and δ 15 N) relation between this predator and its prey allowed inferences on prey assimilation and predator feeding habits. The THg increment varied from 4.5 to 19.5 times between prey and predator, with a biomagnifi cation power of 0.59. The prey species could be divided into three groups regarding δ N highlighted juvenile conspecifi cs as the main via of this trace element and the most assimilated prey. The isotopic relation between predator and its prey species showed a feeding activity preferably coastal and pelagic.

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Alimentação natural do camarão sete-barbas, Xiphopenaeus kroyeri (Heller) (Crustacea, Decapoda), na Armação do Itapocoroy, Penha, Santa Catarina

Cited by 29 publications

References 8 publications

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

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

Evaluation of the feeding habits of Macrobrachium brasiliense (Heller, 1862) in the Curral de Arame stream (Dourados/Mato Grosso Do Sul, Brazil)

Mercury bioaccumulation and isotopic relation between Trichiurus lepturus (Teleostei) and its preferred prey in coastal waters of southeastern Brazil

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