Marine mammals from northeast atlantic: relationship between their trophic status as determined by δ13C and δ15N measurements and their trace metal concentrations

Das, Krishna; Beans, Cristina; Holsbeek, Ludo; Mauger, Gérard; Berrow, Simon; Rogan, Emer; Bouquegneau, Jean-Marie

doi:10.1016/s0141-1136(02)00308-2

Cited by 100 publications

(76 citation statements)

References 51 publications

(58 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…15 N values in the five species, between 11.6& for spiny dogfish and 16.7& for tope sharks, is similar to that observed in marine mammals from the Celtic Sea (10.8& for striped dolphins, Stenella coeruleoalba, and a maximum of 15.8& in white-beaked dolphins, Lagenorhynchus albirostris, Das et al, 2003), thus showing their higher trophic level in the food web. The shark isotope signatures agree very closely (in terms of their relative distribution) with those listed in Pinnegar et al (2002) which also suggested a higher d…”

Section: Discussionsupporting

confidence: 77%

“…Top predators, particularly long-lived species such as marine mammals (Das et al, 2003), seabirds (Debacker, Schiettecatte, Jauniaux, & Bouquegneau, 2001), billfishes (Kai, Hueda, Takeda, & Kat, 1987), tunas (Das et al, 2000;Miller et al, 1972;Storelli, Giacominelli-Stuffler, & Marcotrigiano, 2001) and mackerels (Meaburn, 1978) have been reported to accumulate high levels of trace metals such as mercury, and sometimes cadmium and other metals.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Feeding ecology of five commercial shark species of the Celtic Sea through stable isotope and trace metal analysis

Domi

Bouquegneau

Das

2005

Marine Environmental Research

142

View full text Add to dashboard Cite

In order to trace their feeding habits, stable carbon and nitrogen isotope ratios (d 15 N and d 13 C), as well as trace metal concentrations (Zn, Cd, Fe, Cu, Se and Hg) were analysed in the tissues of five commercial shark species from the Celtic Sea: the tope shark Galeorhinus galeus, the black-mouthed catshark Galeus melastomus, the starry smooth hound Mustelus asterias, the spiny dogfish Squalus acanthias and the lesser-spotted dogfish Scyliorhinus canicula. Our results were compared to previously described stomach contents and isotopic composition of potential preys. Isotopic ratio d 15 N suggested that tope sharks fed at a higher trophic level (16.7& in the muscle) than the other species, reflecting its piscivorous diet. The lower values of spiny dogfish (11.6& in the muscle) might be explained, amongst other things, by either its migratory behaviour or its preference for preys from lower trophic levels. Cd and Hg were correlated with isotopic ratios d 13 C and d 15 N, and were shown to be diet-related whereas Zn, Fe and Cu seemed much more linked to species-specific metabolism. Although this multidisciplinary approach is revealed as a useful tool for the study of shark ecology, the lack of known trophic fractionation suggests that isotopic data be compared to traditional diet analyses.

show abstract

Section: Discussionsupporting

confidence: 77%

Section: Introductionmentioning

confidence: 99%

Feeding ecology of five commercial shark species of the Celtic Sea through stable isotope and trace metal analysis

Domi

Bouquegneau

Das

2005

Marine Environmental Research

142

View full text Add to dashboard Cite

show abstract

“…Concentrations expressed as fresh weight in the original literature were converted to dry weight using the factor of 0.25, as suggested by Becker et al (1995). Our data are in agreement with those measured in specimens from Mediterranean: mercury concentrations in muscle and liver of specimens from Atlantic are lower (Law et al, 1991;Das et al, 2003a). André et al (1991), though, makes an exception.…”

Section: Mercurysupporting

confidence: 80%

“…Marine mammals, being highly sensitive to environmental changes, and at the top of the trophic chain, are important marine health indicators, and the impact of pollutants on their health has given way to a lot of concern. Several studies on trace elements concentration in different species were published over the last years (Leonzio et al, 1992;Law, 1996;Cardellicchio et al, 2000;Das et al, 2003a).…”

Section: Introductionmentioning

confidence: 99%

“…Yet, few studies have focused on heavy metals (Cabana and Rasmussen, 1994;Das et al, 2003a;Das et al, 2004). In this work, metal concentrations (total and organic mercury, cadmium, lead, copper, iron, manganese, selenium and zinc) and stable nitrogen and carbon signature were measured in the tissues and organs of six different cetacean species from the Ligurian Sea: 2 fin whales (B. physalus, Linnaeus, 1758), 1 sperm whale (P. macrocephalus, Linnaeus, 1821), 3 Risso's dolphins (G. griseus,Cuvier, 1812), 3 striped dolphins (S. coeruleoalba, Meyen, 1833), 2 bottlenose dolphins (T. truncatus, Montagu, 1821) and 1 Cuvier's beaked whale (Z. cavirostris, Cuvier, 1823).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Distribution of trace elements in organs of six species of cetaceans from the Ligurian Sea (Mediterranean), and the relationship with stable carbon and nitrogen ratios

Capelli

Das

Pellegrini

et al. 2008

Science of The Total Environment

View full text Add to dashboard Cite

Trophic dynamics in two South American estuaries encompassing industrial development and a biodiversity hotspot

Trevizani

Domit

Broadhurst

et al. 2019

Aquatic Conservation

View full text Add to dashboard Cite

1. Estuaries are critical to the life histories and development of many marine species, and support some of the most productive aquatic ecosystems. But, owing to their geographic accessibility, many estuaries face considerable anthropogenic threats, which can be exacerbated in developing nations. 2. Understanding the ecological implications of anthropogenic activities as a precursor to dedicated conservation activities requires comprehensive assessments of baseline trophic relationships. This study addresses a shortfall in such information for two tropical, coastal ecosystems globally identified as priority areas for biodiversity conservation: the Paranaguá estuarine complex and Cananéia-Iguape estuarine lagoon system in southern Brazil. 3. Ecological relationships were investigated through carbon and nitrogen stable isotope (δ 13 C and δ 15 N) determination in sediments, plant fragments and the muscle tissues of marine species occupying different trophic levels, including benthic invertebrates, This article is protected by copyright. All rights reserved. This is the author manuscript accepted for publication and has undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record. Please cite this article as

show abstract

Marine mammals from northeast atlantic: relationship between their trophic status as determined by δ13C and δ15N measurements and their trace metal concentrations

Cited by 100 publications

References 51 publications

Feeding ecology of five commercial shark species of the Celtic Sea through stable isotope and trace metal analysis

Feeding ecology of five commercial shark species of the Celtic Sea through stable isotope and trace metal analysis

Distribution of trace elements in organs of six species of cetaceans from the Ligurian Sea (Mediterranean), and the relationship with stable carbon and nitrogen ratios

Trophic dynamics in two South American estuaries encompassing industrial development and a biodiversity hotspot

Contact Info

Product

Resources

About