Ecologia trófica de la caballa (Scombridae, Scomber japonicus marplatensis) del Atlantico sudoccidental

Angelescu, Victor

doi:10.1590/s0373-55241980000200008

Cited by 8 publications

(8 citation statements)

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“…On the basis of current knowledge regarding the feeding habits of pelagic fish in the north Patagonian region of the ACS, such as E. anchoita and S. colias , a partial overlap of their diets with T. lathami could be inferred. This fact, which was already mentioned by Angelescu (1980), deserves attention since both species sustain fisheries of commercial interest (Secretaría de Agricultura, Ganadería y Pesca Argentina, 2020) and might suffer changes in population biomass when facing food constraints. Crustacean zooplankton, particularly copepods (>90% of relative importance in the diet), are the main prey item of E. anchoita (Angelescu, 1980; Pájaro, 2002) and S. colias (Padovani & Leonarduzzi, 2017; Padovani & Pájaro, 2014).…”

Section: Discussionmentioning

confidence: 83%

“…This fact, which was already mentioned by Angelescu (1980), deserves attention since both species sustain fisheries of commercial interest (Secretaría de Agricultura, Ganadería y Pesca Argentina, 2020) and might suffer changes in population biomass when facing food constraints. Crustacean zooplankton, particularly copepods (>90% of relative importance in the diet), are the main prey item of E. anchoita (Angelescu, 1980; Pájaro, 2002) and S. colias (Padovani & Leonarduzzi, 2017; Padovani & Pájaro, 2014). Hence, a dietary overlap between the three species might occur for this prey item, but may not necessarily mean competition if food availability is sufficient (Bachiller & Irigoien, 2015; Holbrook & Schmitt, 1989; Irigoien & De Roos, 2011).…”

Section: Discussionmentioning

confidence: 83%

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Ontogenetic diet shifts of rough scad Trachurus lathami in the North Patagonian shelf (south‐west Atlantic Ocean)

Temperoni

Barbini

Orlando

et al. 2021

Journal of Fish Biology

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Rough scad Trachurus lathami is a key pelagic fish in the Argentinean continental shelf (ACS, south‐west Atlantic Ocean), with recent increases in abundance. It is a main prey of fishes and marine mammals, and shares the environment with commercially relevant pelagic species (Engraulis anchoita and Scomber colias), playing an important role linking lower and upper trophic levels in the ecosystem. This study aims to determine the ontogenetic changes in the diet composition, feeding strategy, trophic niche breadth and trophic level of T. lathami in the North Patagonian Shelf (43°–45°30′S). The stomach contents of adult fish (n = 238) were analysed. The results suggest a clear ontogenetic shift in the diet at a size of ~190 mm. Smaller individuals (160–190 mm) were specialized on misidaceans, and showed the highest trophic level, while larger T. lathami (221–230 mm) consumed decapods (Peisos petrunkevitchi) and teleosts (eggs and larvae). Trophic niche breadth was higher at the medium‐sized class (191–220 mm), which mainly preyed on copepods (Calanoides carinatus) and chaetognaths (Sagitta spp.), evidencing a more diverse diet and a rather generalist strategy. Updated information on the trophic ecology of T. lathami evidences its extremely plastic feeding behaviour, being able to adapt its trophic niche to the most readily available food items from the mesopelagic community.

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Section: Discussionmentioning

confidence: 83%

Section: Discussionmentioning

confidence: 83%

Ontogenetic diet shifts of rough scad Trachurus lathami in the North Patagonian shelf (south‐west Atlantic Ocean)

Temperoni

Barbini

Orlando

et al. 2021

Journal of Fish Biology

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“…A mesma figura apresenta algumas rotas que partem do "capim aquato". Embora haja a possibilidade de que algumas conexões possam implicar em interaç&o energética direta, interações indiretas também podem ocorrer, uma vez que os pescadores distinguem o ato de "comer ~ capim" do ato de "comer ~ capim", o primeiro dos quais representa herbi:ltoria e o segundo utilização de "habitat trófico" (Angelescu, 1980), pois "tem peixe que o que ele come é aquele lodinho que dá no capim".…”

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Aspectos ecologicos na etnoictiologia dos pescadores do complexo estuarino-lagunar Mandau-Manguaba, Alagoas

Marques¹

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“…DATA A NA LY S I S Feeding incidence (I F ) was calculated as the percentage of individuals with at least one prey item in their stomach (Arthur, 1976). A stomach fullness index (%I SF ) was calculated following Angelescu (1979) as…”

Section: S T U Dy a R E A A N D S A M P L I N Gmentioning

confidence: 99%

Feeding strategy of juvenile (age‐0+ year) Argentine hakeMerluccius hubbsiin the Patagonian nursery ground

Temperoni

Viñas

Buratti

2013

Journal of Fish Biology

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Age-0+ year juvenile Argentine hake Merluccius hubbsi (60-150 mm total length, L(T)) from San Jorge Gulf, north Patagonian shelf region of the Argentine Sea, had an almost exclusively pelagic diet dominated by the hyperiid amphipod Themisto gaudichaudii and the euphausiid Euphausia lucens. This suggested that final settlement and permanent demersal habitat utilization might not, as previously reported, occur at earlier sizes (c. 20 mm L(T)). Their feeding strategy involves specialization at a population level towards both the main pelagic prey, indicating a narrow trophic niche. Novel data are provided which contribute to the growing body of information in relation to the age-0+ year transitional stage in demersal fishes and particularly to M. hubbsi recruitment in the Argentine Sea.

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Ecologia trófica de la caballa (Scombridae, Scomber japonicus marplatensis) del Atlantico sudoccidental

Cited by 8 publications

References 1 publication

Ontogenetic diet shifts of rough scad Trachurus lathami in the North Patagonian shelf (south‐west Atlantic Ocean)

Ontogenetic diet shifts of rough scad Trachurus lathami in the North Patagonian shelf (south‐west Atlantic Ocean)

Aspectos ecologicos na etnoictiologia dos pescadores do complexo estuarino-lagunar Mandau-Manguaba, Alagoas

Feeding strategy of juvenile (age‐0+ year) Argentine hakeMerluccius hubbsiin the Patagonian nursery ground

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