Food web structure of the epibenthic and infaunal invertebrates on the Catalan slope (NW Mediterranean): Evidence from δ13C and δ15N analysis

Fanelli, Emanuela; Papiol, Vanesa; Cartes, Joan Enric; Rumolo, Paola; Brunet, Christophe; Sprovieri, Mario

doi:10.1016/j.dsr.2010.12.005

Cited by 82 publications

(55 citation statements)

References 68 publications

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“…meiofauna. The current analysis complements previous studies performed on the structure of trophic webs for macrofauna and megafauna (large invertebrates, fish, Fanelli et al 2011;Papiol et al 2013) in where variables like % TOC, δ 13 C and δ 15 N were considered as possible explanatory variables for the highest levels of the Deep-sea food chain.…”

Section: Introductionsupporting

confidence: 55%

Seasonal variations in the source of sea bottom organic matter off Catalonia coasts (western Mediterranean): links with hydrography and biological response

et al. 2015

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on average 71.2 % estimating marine and terrestrial OC by binary models; 68-71 % at the most by SIAR models), advection of organic matter from the continental edge and/ or resuspension of organic matter along submarine canyons may seasonally alter the composition of deposits on the slope, particularly in July with % OC of terrestrial origin reaching 48.7 % in Buscarró canyon, shifting the basal food-web of deep ecosystems.

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Section: Introductionsupporting

confidence: 55%

Seasonal variations in the source of sea bottom organic matter off Catalonia coasts (western Mediterranean): links with hydrography and biological response

et al. 2015

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“…For stations using the gear CTD, BC, and Lander, the start latitude and longitude represent when gear was near/on bottom. Fanelli et al 2011, 3. Cartes 1998, 4.…”

Section: Fig S3 Ols Model Predictions For δmentioning

confidence: 99%

Food-web dynamics and isotopic niches in deep-sea communities residing in a submarine canyon and on the adjacent open slopes

Demopoulos¹,

McClain‐Counts²,

Ross³

et al. 2017

Mar. Ecol. Prog. Ser.

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“…Badalamenti et al (2002Badalamenti et al ( , 2008 and Fanelli et al (2010) demonstrated that in littoral systems the trophic level of benthic fish such as red mullet and common pandora, which prey upon carnivore polychaetes, is close to that of larger piscivorous predators. Conversely, pelagic food webs are relatively simple (Bode et al 2007, Fanelli et al, 2011b and small pelagic fish such as clupeoids, feeding on zooplankton, exhibit lower δ 15 N values than fish from benthic and suprabenthic assemblages that belong to more complex food webs organized into at least three trophic levels (from deposit feeders to carnivores: Carlier et al 2007, Fanelli et al 2009a, 2011c, with small fish occupying the same trophic level as carnivorous polychaetes or small decapods.…”

Section: The Effect Of the Trawl Ban On The Isotopic Composition And mentioning

confidence: 99%

Assessing the effects of a trawling ban on diet and trophic level of hake, <i>Merluccius merluccius</i>, in the southern Tyrrhenian Sea

Sinopoli¹,

Fanelli²,

D’Anna³

et al. 2011

Sci. Mar.

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SUMMARY: This study assesses the effects of a trawling ban on the diet and trophodynamics of the hake Merluccius merluccius by comparing stomach contents and stable isotopes (δ 15 N and δ 13 C) in two trawled gulfs and one untrawled gulf in northern Sicily (western Mediterranean). Comparisons were made for three size classes of hake encompassing 60 to 410 mm total length. Fish were collected from 50 to 200 m depth on muddy bottoms. The diets of hake of small and medium size were similar overall but more selective in the untrawled gulf. Greater differences were detected between the diets of larger specimens from trawled and untrawled areas. In the untrawled gulf large hake mainly preyed on clupeoid fish, while in the trawled gulfs other fish prey were found in the stomach contents. δ 15 N values of hake did not vary significantly between trawled and untrawled areas, while there was a clear effect of size, with larger individuals being significantly more enriched than juveniles. Conversely, δ 13 C values were generally more depleted for individuals collected in the untrawled area, suggesting a more pelagic source of carbon. The results from the mixing model agree fairly well with the known feeding habits found for each size class in each area.Keywords: diet, fishing impact, Merluccius merluccius, stable isotopes, trophodynamics, Mediterranean. RESUMEN: Efectos de un área de veda a la pesca de arrastre sobre la dieta y el nivel trófico de la merluza, Merluccius Merluccius, en el sur del Mar Tirreno. -Este estudio evaluó los efectos de la pesca de arrastre comercial en la dieta y la trofodinámica de la merluza mediterránea, Merluccius merluccius, mediante la comparación de sus contenidos estomacales y de la composición isotópica (δ 15 N y δ 13 C) en dos golfos donde está permitida la pesca de arrastre y en uno donde está prohibida, en el norte de Sicilia (Mediterráneo Occidental). Las comparaciones se hicieron para tres clases de talla que abarca la merluza entre 60 y 410 mm de longitud total. Los peces fueron recolectados en los fondos fangosos de la plataforma continental de 50 a 200 m de profundidad. Los hábitos alimenticios de las merluzas pequeñas y medianas eran similares, pero más selectivo en el golfo donde la pesca está prohibida. Las mayores diferencias se produjeron en la dieta de los especímenes más grandes comparando los golfos arrastrados con el golfo protegido. En el área protegida las merluzas grandes cazaban sobre todo en clupeidos y engráulidos, mientras que otros peces se encuentran en el contenido estomacal de M. merluccius de las áreas de pesca. Los valores de δ 15 N de la merluza no variaron significativamente entre las áreas protegidas y no protegidas, mientras que hubo un efecto claro de la talla: valores más alto, se han observado en los animales más grandes. Por el contrario los valores de δ 13 C fueron en general más empobrecidos (más negativos) en los ejemplares recolectados en el área protegida, esto indica una fuente más planctónica de carbono. Los resultados de los mixing models concue...

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Food web structure of the epibenthic and infaunal invertebrates on the Catalan slope (NW Mediterranean): Evidence from δ13C and δ15N analysis

Cited by 82 publications

References 68 publications

Seasonal variations in the source of sea bottom organic matter off Catalonia coasts (western Mediterranean): links with hydrography and biological response

Seasonal variations in the source of sea bottom organic matter off Catalonia coasts (western Mediterranean): links with hydrography and biological response

Food-web dynamics and isotopic niches in deep-sea communities residing in a submarine canyon and on the adjacent open slopes

Assessing the effects of a trawling ban on diet and trophic level of hake, <i>Merluccius merluccius</i>, in the southern Tyrrhenian Sea

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