Application of the CARLIT index along a biogeographical gradient in the Alboran Sea (European Coast)

Bermejo, Ricardo; Fuente, Gina De La; Vergara, Juan J.; Hernández, Ignacio

doi:10.1016/j.marpolbul.2013.04.011

Cited by 38 publications

(25 citation statements)

References 46 publications

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“…And, fourth, it takes into account the totality of the coast, avoiding the misclassification of a WB due to special features of the sampling stations chosen to evaluate the WB. Moreover, the ES assessment of the WBs agrees with the intensity of the anthropogenic pressures as previously reported [18,[37][38][39]. The good negative relationship between the averaged EQR values and the modified LUSI index used here (Fig.…”

Section: Discussionsupporting

confidence: 88%

Environmental Quality of Catalan Coastal Waters Based on Macroalgae: The Interannual Variability of CARLIT Index and Its Ability to Detect Changes in Anthropogenic Pressures over Time

Torras

Pinedo

García

et al. 2015

The Handbook of Environmental Chemistry

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CARLIT is a Water Framework Directive-compliant methodology permitting a rapid assessment of water quality using rocky-shore macroalgae as biological quality elements. Here we present the water quality assessment of 32 coastal water bodies of Catalonia (Northwestern Mediterranean) during a period of 14 years (1999-2012) applying CARLIT. The averaged ecological status of the water bodies ranges between high and poor and the Ecological Quality Ratio shows a significant negative relationship with a modified LUSI index, thus providing further evidence on the utility of CARLIT to detect anthropogenic pressures. The lowest interannual variability in water quality was found in water bodies having most of their shore covered by natural rocks, while the highest variability was observed in water bodies situated in semi-confined environments or located close to freshwater discharges. In spite of the multiple advantages of CARLIT as a monitoring methodology, it can show strong disagreements in water quality assessment with other methodologies using other biological quality elements (i.e., macroinvertebrates). These discrepancies mainly occur in water bodies with reduced extension of rocky shores, questioning the use of CARLIT in these situations.

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Section: Discussionsupporting

confidence: 88%

Environmental Quality of Catalan Coastal Waters Based on Macroalgae: The Interannual Variability of CARLIT Index and Its Ability to Detect Changes in Anthropogenic Pressures over Time

Torras

Pinedo

García

et al. 2015

The Handbook of Environmental Chemistry

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show abstract

“…Macroalgae from different morpho-functional groups defined according to Littler et al (1983) were collected in La Araña (36°45' N, 4°18' W) on the Málaga coastline (Alborán Sea, southern Iberian Peninsula) characterized by a good ecological status of coastal waters as defined by the European Water Framework Directive (2000/60/EC) (Mercado et al 2012, Bermejo et al 2013.…”

Section: Algae and Experimental Designmentioning

confidence: 99%

Short-term effects of increasing CO2, nitrate and temperature on three Mediterranean macroalgae: biochemical composition

Figueroa¹,

Barufi²,

Malta³

et al. 2014

Aquat. Biol.

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“…These species were chosen because they are abundant around shallow Mediterranean CO 2 seeps (Baggini et al, 2014), because Cystoseira spp. are indicators of high water quality in the Mediterranean (Bermejo et al, 2013) and since Padina spp. tolerate loss of external calcification as CO 2 levels increase (Johnson et al, 2012;Pettit et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Macroalgal responses to ocean acidification depend on nutrient and light levels

et al. 2015

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Ocean acidification may benefit algae that are able to capitalize on increased carbon availability for photosynthesis, but it is expected to have adverse effects on calcified algae through dissolution. Shifts in dominance between primary producers will have knock-on effects on marine ecosystems and will likely vary regionally, depending on factors such as irradiance (light vs. shade) and nutrient levels (oligotrophic vs. eutrophic). Thus experiments are needed to evaluate interactive effects of combined stressors in the field. In this study, we investigated the physiological responses of macroalgae near a CO 2 seep in oligotrophic waters off Vulcano (Italy). The algae were incubated in situ at 0.2 m depth using a combination of three mean CO 2 levels (500, 700-800 and 1200 μatm CO 2 ), two light levels (100 and 70% of surface irradiance) and two nutrient levels of N, P, and K (enriched vs. non-enriched treatments) in the non-calcified macroalga Cystoseira compressa (Phaeophyceae, Fucales) and calcified Padina pavonica (Phaeophyceae, Dictyotales). A suite of biochemical assays and in vivo chlorophyll a fluorescence parameters showed that elevated CO 2 levels benefitted both of these algae, although their responses varied depending on light and nutrient availability. In C. compressa, elevated CO 2 treatments resulted in higher carbon content and antioxidant activity in shaded conditions both with and without nutrient enrichment-they had more Chla, phenols and fucoxanthin with nutrient enrichment and higher quantum yield (F v /F m ) and photosynthetic efficiency (α ETR ) without nutrient enrichment. In P. pavonica, elevated CO 2 treatments had higher carbon content, F v /F m , α ETR , and Chla regardless of nutrient levels-they had higher concentrations of phenolic compounds in nutrient enriched, fully-lit conditions and more antioxidants in shaded, nutrient enriched conditions. Nitrogen content increased significantly in fertilized treatments, confirming that these algae were nutrient limited in this oligotrophic part of the Mediterranean. Our findings strengthen evidence that brown algae can be expected to proliferate as the oceans acidify where physicochemical conditions, such as nutrient levels and light, permit.

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Application of the CARLIT index along a biogeographical gradient in the Alboran Sea (European Coast)

Cited by 38 publications

References 46 publications

Environmental Quality of Catalan Coastal Waters Based on Macroalgae: The Interannual Variability of CARLIT Index and Its Ability to Detect Changes in Anthropogenic Pressures over Time

Environmental Quality of Catalan Coastal Waters Based on Macroalgae: The Interannual Variability of CARLIT Index and Its Ability to Detect Changes in Anthropogenic Pressures over Time

Short-term effects of increasing CO2, nitrate and temperature on three Mediterranean macroalgae: biochemical composition

Macroalgal responses to ocean acidification depend on nutrient and light levels

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