Stable nitrogen isotopes in octocorals as an indicator of water quality decline from the northwestern region of Cuba.

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Tytuł:: Stable nitrogen isotopes in octocorals as an indicator of water quality decline from the northwestern region of Cuba.
Autorzy:: Rey-Villiers N; Centro Interdisciplinario de Ciencias Marinas del Instituto Politécnico Nacional, Av. IPN S/N, Col. Playa Palo de Sta. Rita, Apdo. Postal #592, 23096, La Paz, Baja California Sur, Mexico. .; Instituto de Ciencias del Mar, Ministerio de Ciencia, Tecnología y Medio Ambiente, Loma y 39, Plaza, CP 10600, Havana, Cuba. .
Sánchez A; Centro Interdisciplinario de Ciencias Marinas del Instituto Politécnico Nacional, Av. IPN S/N, Col. Playa Palo de Sta. Rita, Apdo. Postal #592, 23096, La Paz, Baja California Sur, Mexico.
González-Díaz P; Centro de Investigaciones Marinas, Universidad de La Habana, Calle 16 No. 114, Playa, CP 11300, Havana, Cuba.
Źródło:: Environmental science and pollution research international [Environ Sci Pollut Res Int] 2021 Apr; Vol. 28 (15), pp. 18457-18470. Date of Electronic Publication: 2020 Jul 04.
Typ publikacji:: Journal Article
Język:: English
Imprint Name(s):: Publication: <2013->: Berlin : Springer
Original Publication: Landsberg, Germany : Ecomed
MeSH Terms:: Anthozoa*
Water Pollutants, Chemical*/analysis
Animals ; Cuba ; Environmental Monitoring ; Nitrogen/analysis ; Nitrogen Isotopes/analysis ; Water Quality
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Baker D, Jordán-Dahlgren E, Maldonado MA, Harvell CD (2010) Sea fan corals provide a stable isotope baseline for assessing sewage pollution in the Mexican Caribbean. Limnol Oceanogr 55(5):2139–2149. https://doi.org/10.4319/lo.2010.55.5.2139. (PMID: 10.4319/lo.2010.55.5.2139)
Baker D, Kim K, Andras JP, Sparks JP (2011) Light-mediated C in gorgonians from Florida Reef Tract. Mar Ecol Prog Ser 296:155–163. https://doi.org/10.3354/meps296155. (PMID: 10.3354/meps296155)
Wilkinson CR, Williams DM, Sammarco PW, Hogg RW, Trott LA (1984) Rates of nitrogen fixation on coral reefs across the continental shelf of the central Great Barrier Reef. Mar Biol 80:255–262. https://doi.org/10.1007/BF00392820. (PMID: 10.1007/BF00392820)
Contributed Indexing:: Keywords: Coral reefs; Eunicea flexuosa; Eutrophication; Plexaura kuekenthali; Sewage discharge; Stable nitrogen isotopes
Substance Nomenclature:: 0 (Nitrogen Isotopes)
0 (Water Pollutants, Chemical)
N762921K75 (Nitrogen)
Entry Date(s):: Date Created: 20200706 Date Completed: 20210407 Latest Revision: 20210407
Update Code:: 20240104
DOI:: 10.1007/s11356-020-09956-x
PMID:: 32623667
: Czasopismo naukowe

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Eutrophication is one of the causes of the degradation of reefs worldwide. The aim of this research is to determine if sewage discharge reaches the fore reefs at northwest of Cuba using δ 15 N in tissues of the octocorals Eunicea flexuosa and Plexaura kuekenthali and the concentration of microbiological and physical-chemical variables. Thirteen reefs at 10-m depth were selected near river basins and far from the urban and industrial development of Havana City. Branch tips of both species were collected, the concentrations of nutrient and microorganisms in water samples were quantified, and horizontal visibility in the water (Vis) was determined. Overall, δ 15 N of E. flexuosa ranged from 1.5 to 6.3‰ and P. kuekenthali from 1.7 to 6.7‰. The tissue of both species was significantly enriched in 15 N in reefs near polluted watersheds compared with reefs far from pollution by anthropogenic activities. The δ 15 N of both species showed a positive and significant correlation with the concentration of fecal and total coliform bacteria, heterotrophic bacteria, and NH 4 + and a negative and significant correlation with the Vis. The δ 15 N of the two species and microbiological and physical-chemical variables evidenced water quality decline by sewage discharge that reached reefs near polluted watersheds.

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