Mercury and stable isotopes (δ15N and δ13C) as tracers during the ontogeny of Trichiurus lepturus
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...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Ictiologia
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| Series: | Neotropical Ichthyology |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000100211&lng=en&tlng=en |
| _version_ | 1818180609922564096 |
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| author | Ana Paula Madeira Di Beneditto Vanessa Trindade Bittar Carlos Eduardo de Rezende Plinio Barbosa Camargo Helena Amaral Kehrig |
| author_facet | Ana Paula Madeira Di Beneditto Vanessa Trindade Bittar Carlos Eduardo de Rezende Plinio Barbosa Camargo Helena Amaral Kehrig |
| author_sort | Ana Paula Madeira Di Beneditto |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-12-11T21:22:30Z |
| format | Article |
| id | doaj.art-50c186378822458589f65bd6b54e2edb |
| institution | Directory Open Access Journal |
| issn | 1982-0224 |
| language | English |
| last_indexed | 2024-12-11T21:22:30Z |
| publisher | Sociedade Brasileira de Ictiologia |
| record_format | Article |
| series | Neotropical Ichthyology |
| spelling | doaj.art-50c186378822458589f65bd6b54e2edb2022-12-22T00:50:26ZengSociedade Brasileira de IctiologiaNeotropical Ichthyology1982-022411121121610.1590/S1679-62252013000100024S1679-62252013000100211Mercury and stable isotopes (δ15N and δ13C) as tracers during the ontogeny of Trichiurus lepturusAna Paula Madeira Di BenedittoVanessa Trindade BittarCarlos Eduardo de RezendePlinio Barbosa CamargoHelena Amaral KehrigThis 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.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000100211&lng=en&tlng=enCarbonDiet tracersNitrogenTrace elementTrichiurus lepturus |
| spellingShingle | Ana Paula Madeira Di Beneditto Vanessa Trindade Bittar Carlos Eduardo de Rezende Plinio Barbosa Camargo Helena Amaral Kehrig Mercury and stable isotopes (δ15N and δ13C) as tracers during the ontogeny of Trichiurus lepturus Neotropical Ichthyology Carbon Diet tracers Nitrogen Trace element Trichiurus lepturus |
| title | Mercury and stable isotopes (δ15N and δ13C) as tracers during the ontogeny of Trichiurus lepturus |
| title_full | Mercury and stable isotopes (δ15N and δ13C) as tracers during the ontogeny of Trichiurus lepturus |
| title_fullStr | Mercury and stable isotopes (δ15N and δ13C) as tracers during the ontogeny of Trichiurus lepturus |
| title_full_unstemmed | Mercury and stable isotopes (δ15N and δ13C) as tracers during the ontogeny of Trichiurus lepturus |
| title_short | Mercury and stable isotopes (δ15N and δ13C) as tracers during the ontogeny of Trichiurus lepturus |
| title_sort | mercury and stable isotopes δ15n and δ13c as tracers during the ontogeny of trichiurus lepturus |
| topic | Carbon Diet tracers Nitrogen Trace element Trichiurus lepturus |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000100211&lng=en&tlng=en |
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