Zobrazeno 1 - 10
of 1 103
pro vyhledávání: '"A Gómez-Parra"'
Publikováno v:
In World Development January 2025 185
Publikováno v:
Ciencias Marinas, Vol 32, Iss 2B (2006)
A subchronic toxicity study was performed by exposing organisms to two surfactants in a continuous flow-through system for 120 h, followed by a depuration phase of 48 h. The bivalve mollusc Ruditapes philippinarum, widely distributed in intertidal zo
Externí odkaz:
https://doaj.org/article/a5a2ebff39ef4201a928c2f11f93387d
Publikováno v:
Ciencias Marinas, Vol 31, Iss 1B (2005)
Laboratory simulation of the processes that affect chemical species as they pass through estuaries is a useful tool for the study of these littoral systems. In this work, laboratory generation of the salinity gradients of several estuaries was perfor
Externí odkaz:
https://doaj.org/article/182bc9a80a3048bba1c223e3f312a675
Publikováno v:
Ciencias Marinas, Vol 31, Iss 1B (2005)
Concentrations of surfactants and persistent organic pollutants have been determined in coastal marine sediments (Cádiz Bay, SW Spain) from two areas affected by different contamination sources and levels: a tidal channel (Sancti Petri Channel) subj
Externí odkaz:
https://doaj.org/article/44e09cbe87314edbb733cc92044e4738
Publikováno v:
Ciencias Marinas, Vol 31, Iss 1B (2005)
Molar absorptivities of thymol blue have been determined in synthetic solutions of ionic strength ranging from 0.1 to 0.7 Mw. The solutions were buffered to pH 11.5 in order to characterize the absorption spectrum of the basic form of the indicator a
Externí odkaz:
https://doaj.org/article/872d8612b3734e27a7b42a3904a27450
Publikováno v:
Ciencias Marinas, Vol 30, Iss 3 (2004)
Acid and alkaline phosphatase activities (E.C.3.1.3.2 and E.C.3.1.3.1, respectively) were measured in seawater and sediments from different sites of a salt-pond of the Bay of Cádiz. The profiles of enzymatic activity relative to depth were also anal
Externí odkaz:
https://doaj.org/article/3b5fedaf58244cea816e63295a00235d
Publikováno v:
Ciencias Marinas, Vol 29, Iss 4 (2003)
Linear alkylbenzene sulfonate (LAS) and sulfophenylcarboxylate acid (SPC) adsorption on suspended material (sediment and phytoplankton) has been determined in laboratory experiments. The kinetic characterization of the adsorption process allows the t
Externí odkaz:
https://doaj.org/article/10aeab934e0c47b09f78c4d5ad91703a
Publikováno v:
Ciencias Marinas, Vol 29, Iss 4 (2003)
Temporal surveys at the Guadalquivir estuary were carried out between May and December 1998 to assess the behaviour of four heavy metals (Zn, Cd, Pb and Cu). These metals presented a non-conservative behaviour, with KD ranging between 102 and 104. Lo
Externí odkaz:
https://doaj.org/article/93326d7d444c487bbd4a4b37e100eeb1
Publikováno v:
Ciencias Marinas, Vol 27, Iss 3 (2001)
The benthic fluxes of inorganic carbon were measured in the Bay of Cádiz, located in the SW of the Iberian Peninsula (Southern Europe). The values measured ranged between 74 and 224 mmol m–2 d–1, which are higher than most reported fluxes. They
Externí odkaz:
https://doaj.org/article/51ac3ada14524dc9836567350889e2b9
Publikováno v:
Ciencias Marinas, Vol 26, Iss 3 (2000)
The vertical profiles of Zn, Cd, Pb and Cu were determined for sediment and interstitial water from three stations in Cádiz Bay. The concentrations of the different metals measured in the surface sediments depend on the distance from the waste water
Externí odkaz:
https://doaj.org/article/3635f74ceb524489a60b92131fd33214