Feeding ecology of hairtail Trichiurus margarites and largehead hairtail Trichiurus lepturus in the Beibu Gulf, the South China Sea

Yan, Yunrong; Hou, Gang; Chen, Junlan; Lu, Huosheng; Jin, Xianshi

doi:10.1007/s00343-011-0004-z

Cited by 22 publications

(27 citation statements)

References 18 publications

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“…Both tracers showed that the fish changes its preferential feeding habit, which is an important strategy to minimize intra-specific competition. Previous stomach content analysis of T. lepturus had already verified ontogenetic differences in its food preference (Martins et al, 2005;Chiou et al, 2006;Yan et al, 2011). These studies indicate that stomach content analysis is important to the taxonomic recognition of ingested prey.…”

Section: Discussionmentioning

confidence: 64%

Mercury and stable isotopes (δ15N and δ13C) as tracers during the ontogeny of Trichiurus lepturus

et al. 2013

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This study applies total mercury (THg) concentration and stable isotope signature (δ15N and δ13C) to evaluate the trophic status and feeding ground of Trichiurus lepturus during its ontogeny in northern Rio de Janeiro, south-eastern Brazil. The trophic position of T. lepturus is detected well by THg and δ15N as the sub-adult planktivorous specimens are distinct from the adult carnivorous specimens. The δ13C signatures suggest a feeding ground associated with marine coastal waters that are shared by fish in different ontogenetic phases. The diet tracers indicated that the fish feeding habits do not vary along seasons of the year, probably reflecting the prey availability in the study area. This fish has economic importance and the concentration of THg was compared to World Health Organization limit, showing that the adult specimens of T. lepturus are very close to the tolerable limit for safe regular ingestion.

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Section: Discussionmentioning

confidence: 64%

Mercury and stable isotopes (δ15N and δ13C) as tracers during the ontogeny of Trichiurus lepturus

et al. 2013

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“…Adult specimens of T. lepturus, both males and females, are considered opportunistic feeders, and the presence of co- specifics in its diet characterizes the cannibalism widely reported in previous studies (e.g. Wojciechowski, 1972;Portsev, 1980;Zhang, 2004;Martins et al, 2005;Bakhoum, 2007;Bittar et al, 2008;Yan et al, 2011). The gregarious behavior of T. lepturus, its oral apparatus and voracious feeding behavior (Martins et al, 2005;Froese & Pauly, 2011) seem to be favoring the cannibalism strategy in this species.…”

Section: Discussionmentioning

confidence: 99%

“…Although the feeding ecology of this species has been studied through many approaches (e.g. Wojciechowski, 1972;Martins et al, 1997;Martins et al, 2005;Chiou et al, 2006;Bakhoum, 2007;Bittar et al, 2008;Al-Nahdi et al, 2009;Bittar & Di Beneditto, 2009;Yan et al, 2010;Yan et al, 2011), there is no available information on nutrition and energetics of its.…”

Section: Introductionmentioning

confidence: 99%

“…During the ontogeny, the species change their feeding habits being zooplanktivore feeder at juvenile stage (5-30 cm length), and becoming a voracious carnivore when adult (more than 100 cm length), feeding mainly on pelagic and demersal fishes, including co-specifics, which characterized the cannibalism behavior (e.g. Nakamura & Parin, 1993;Martins et al, 2005;Chiou et al, 2006;Bittar & Di Beneditto, 2009;Yan et al, 2011). Although the feeding ecology of this species has been studied through many approaches (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…The energy density and proximate-composition are associated with interspecific characteristic environmental conditions (Clarke et al, 1994;Payne et al, 1999;Tierney et al, 2002;Eder & Lewis, 2005;Yan et al, 2011), and influence the dynamics of marine trophic webs. Current knowledge regarding the energy and nutritional composition of organisms allows assessment of energy transference rates among trophic levels (Eder & Lewis, 2005), understanding population dynamics and predators feeding behavior (Benoit-Bird, 2004) and bioenergetic modeling (Tierney et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

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Feeding preference of adult females of ribbonfish Trichiurus lepturus through prey proximate-composition and caloric values

et al. 2012

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In the present study we analysed the proximate-composition and caloric values of the preferred prey consumed by ribbonfish, Trichiurus lepturus L. 1758 (adult females), that are distributed in the inner continental shelf from northern Rio de Janeiro State, southeastern Brazil (~22ºS), assessing the potential of nutritional and energetic approach as a tool to understand the feeding selective pattern of this marine top carnivore. The preferred prey of this predator composed of fish co-specifics, Pellona harroweri, Chirocentrodon bleekerianus, Lycengraulis grossidens, Peprilus paru, squid Doryteuthis plei, and shrimp Xiphopenaeus kroyeri were collected from 2007 to 2010 for proximate-composition (water, protein, lipid, ash, and carbohydrate) and caloric value analyses. The correspondence analysis showed that protein is the main component in the prey species (61.32% of variance explained), standing out from the other nutrients. Lipid has the highest percentage related to L. grossidens, ash to X. kroyeri and carbohydrate to D. plei. The strong correlations between protein and caloric value (positive) and lipid and caloric value (negative) indicated that T. lepturus is attending its energy demand through the prey protein content. This work elucidated the feeding preference of adult females of T. lepturus in relation to nutritional and caloric content of their preferred prey. The species showed food selectivity to prey that provide more energy per ingested biomass, so that the feeding events can maximize the predator's caloric gain, which is obtained by a protein-based diet.No presente estudo foram analisadas a composição centesimal e o valor calórico das presas preferenciais consumidas pelo peixeespada, Trichiurus lepturus L. 1758 (fêmeas adultas), que se distribuem na plataforma continental interna do norte do estado do Rio de Janeiro, sudeste do Brasil (~ 22ºS). O objetivo foi avaliar o potencial da abordagem nutricional e energética como ferramenta para compreender o padrão de seletividade alimentar deste carnívoro marinho. As presas preferenciais deste predador, compostas por co-específicos e pelos peixes Pellona harroweri, Chirocentrodon bleekerianus, Lycengraulis grossidens e Peprilus paru, pela lula Doryteuthis plei e pelo camarão Xiphopenaeus kroyeri, foram coletadas entre 2007 e 2010 para análise da composição centesimal (água, proteína, lipídio, cinzas e carboidratos) e do valor calórico. A análise de correspondência mostrou que a proteína é o principal componente nas espécies de presa (61,32% da variância explicada), destacando-se dos outros nutrientes. Para o lipídio a maior porcentagem esteve relacionada com L. grossidens, cinzas com X. kroyeri e carboidratos com D. plei. As fortes correlações entre proteína e valor calórico (positiva) e lipídio e valor calórico (negativa) indicaram que T. lepturus está atendendo sua demanda de energia através do teor de proteína das presas. Este trabalho elucidou a preferência alimentar de fêmeas adultas de T. lepturus em relação ao conteúdo nutricional e calórico das pr...

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Metazoan endoparasite fauna and feeding ecology of commercial fishes from Java, Indonesia

et al. 2022

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Despite being an important component of the marine ecosystem and posing health risks to human seafood consumers, fish parasites in Indonesia have yet to be adequately described. Here, we analyzed the diet and metazoan parasite fauna of seven commercial fish species (Alectis indica, Carangoides chrysophrys, Johnius borneensis, Mene maculata, Trichiurus lepturus, Upeneus asymmetricus, U. moluccensis) landed in Java, Indonesia. We isolated 11 endoparasite species, established 22 new host and 14 new locality records, and extended parasitological records of A. indica by 24%, C. chrysophrys by 25%, J. borneensis by 40%, M. maculata by 44%, U. asymmetricus by 100%, and U. moluccensis by 17%. We genetically identified the trematode Stephanostomum cf. uku (of Bray et al. 2005) from Alecta indica for the first time in Indonesia and provided the sequence of its 28S marker. Stomach content analysis revealed seven different prey items, and the examined fish species were grouped into four feeding categories, which differed significantly in their respective endoparasite fauna. All but two examined fish species hosted potentially zoonotic nematodes, which reveal a risk for parasite-borne diseases in Indonesian food fishes and call for more consequent monitoring with regard to seafood safety in this region. With this study, we were able to establish an association between the feeding ecology and the endoparasite fauna of marine fishes which will help to better understand the transmission pathways of (potentially zoonotic) parasites in food fishes in tropical waters.

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Feeding ecology of hairtail Trichiurus margarites and largehead hairtail Trichiurus lepturus in the Beibu Gulf, the South China Sea

Cited by 22 publications

References 18 publications

Mercury and stable isotopes (δ15N and δ13C) as tracers during the ontogeny of Trichiurus lepturus

Mercury and stable isotopes (δ15N and δ13C) as tracers during the ontogeny of Trichiurus lepturus

Feeding preference of adult females of ribbonfish Trichiurus lepturus through prey proximate-composition and caloric values

Metazoan endoparasite fauna and feeding ecology of commercial fishes from Java, Indonesia

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