The Amphipod Community as a Bioindicator in Algeciras Bay (Southern Iberian Peninsula) Based on a Spatio‐Temporal Distribution

Conradi, Mercedes; López–González, Pablo J.; García‐Gómez, Candela

doi:10.1111/j.1439-0485.1997.tb00430.x

Cited by 84 publications

(61 citation statements)

References 20 publications

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“…Conradi et al 1997;Sánchez-Moyano and García-Gómez 1998;Guerra-García and García-Gómez 2001;Ohji et al 2002;Dauvin and Ruellet 2007). On the other hand, C. elongata is one of the most important algae in the intertidal ecosystems (Pérez-Cirera and Maldonado 1982;Guerra-García et al 2006).…”

Section: Discussionmentioning

confidence: 99%

“…Chavanich and Wilson 2000;Thiel 2002;Castellanos et al 2003;De Broyer et al 2003;Chiesa et al 2005;Winfield et al 2006;Myers and Lowry 2009). Nevertheless, research has not been so intensive in the Iberian Peninsula, and the knowledge in this field is still fragmentary (Bellan-Santini and Ruffo 1998;Guerra-García et al 2009b, c, d) and mainly focused on the Strait of Gibraltar (Conradi et al 1997;Castelló and Carballo 2001;Guerra-García and Takeuchi 2002). However, there has been a slight increase in the interest of this region during the last decade (e.g.…”

Section: Introductionmentioning

confidence: 99%

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Distribution patterns of the peracarid crustaceans associated with the alga Corallina elongata along the intertidal rocky shores of the Iberian Peninsula

Izquierdo

Guerra-García

2010

Helgol Mar Res

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Spatial patterns of intertidal peracarids, associated with the alga Corallina elongata, were studied along the whole Iberian Peninsula. A total of 28,215 specimens were collected, comprising 78 different species (57 amphipods, 16 isopods, 4 tanaids and 1 cumacean), most of them with Atlantic-Mediterranean distribution (60%) and only 9% of Mediterranean endemics. Gammarids were dominant in abundance and number of species, representing more than 70% of the total peracarids. The most common species collected during the present study were the caprellid Caprella penantis, the gammarids Hyale schmidti, Hyale stebbingi, Jassa cf. falcata and Stenothoe monoculoides, the isopod Ischyromene lacazei and the tanaid Tanais dulongii. Caprellids and tanaidaceans presented their highest populations in the stations of the Strait of Gibraltar, whereas isopods were more abundant in Atlantic stations. Univariate analyses did not reflected differences in number of species, abundance and ShannonWeaver diversity between Mediterranean and Atlantic. However, cluster analyses and Whittaker index, as measure of ß-diversity, showed a different species composition between Mediterranean and Atlantic and a replacement of species along the coast, especially at the Strait of Gibraltar. The turnover mainly affected species of the same genera, probably related with sympatric speciation. CCA and BIO-ENV analyses showed high correlations between environmental measures (especially conductivity) and peracarid distribution. Mediterranean species tolerated higher values of conductivity and temperature, while Atlantic species were associated with stations characterized by higher oxygen concentrations.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Distribution patterns of the peracarid crustaceans associated with the alga Corallina elongata along the intertidal rocky shores of the Iberian Peninsula

Izquierdo

Guerra-García

2010

Helgol Mar Res

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“…For example, Conradi et al (1997) showed that the amphipod population associated with the bryozoan Bugula neritina had a higher diversity and species richness in the stations located at the mouth of the bay than the inner stations with low water movement and higher sedimentation. Sánchez-Moyano and García-Gómez (1998) and Sánchez-Moyano et al (2002a, b) studied the spatiotemporal distribution of the epifaunal community of macrofauna living on the alga Halopteris scoparia, collected by scuba in several stations of Algeciras Bay, and reported that in the external zone a greater number of species appeared.…”

Section: Distribution Of Fauna and Algaementioning

confidence: 99%

“…It is an important industrial area, with chemical factories, refineries, thermal power plants, iron works, paper mills and ship yards, along with a major port (Conradi et al, 1997). Recently, several studies have been conducted in Algeciras Bay using subtidal benthic communities as bioindicators (sponges: Carballo et al, 1996;ascidians: Naranjo et al, 1996; epifauna of algae and briozoa: Conradi et al, 1997, Sánchez-Moyano andGarcía-Gómez, 1998;Sánchez-Moyano et al, 2000a, b, 2002.…”

Section: Introductionmentioning

confidence: 99%

Assessing a Quick Monitoring Method Using Rocky Intertidal Communities as a Bioindicator: A Multivariate Approach in Algeciras Bay

Guerra-García

Maestre

González

et al. 2006

Environ Monit Assess

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Abstract.A multivariate approach was used to test the value of intertidal communities as a bioindicator of environmental conditions at Algeciras Bay, southern Spain. The study area is located in the Strait of Gibraltar and it is subjected to a variety of anthropic impacts. Eight localities (5 inside and 3 outside the bay) were selected, and four transects were undertaken in each locality to characterise the fauna and flora. The spatial distribution of the intertidal species reflected the physico-chemical conditions of Algeciras Bay. The stations located outside the bay, characterised by high hydrodynamism and dissolved oxygen and low sedimentation and turbidity, had a higher diversity and species richness than the inner stations. According to the BIO-ENV procedure and CCA, water turbidity was the factor which best correlated with the intertidal assemblages. SIMPER showed that the molluscs Chtamalus stellatus, Mytilus cf edulis, Littorina neritoides and Balanus perforatus, and the algae Gelidium pusillum, Corallina elongata, Asparagopsis armata, Colpomenia sinuosa and Fucus spiralis were the species that most contributed to the dissimilarity between internal and external sites. The present study, based on the spatial distribution of intertidal taxa, yielded similar results to those previously obtained in the area with costly physico-chemical analysis based on complex matrices of subtidal epifaunal communities. Consequently, the intertidal sampling method proposed in this study is presented here as a quick, effective alternative strategy, and can be useful in environmental monitoring programs, since these communities are easily accessible and amenable to sample, and the sessile nature of the majority of the species makes future, long-term monitoring relatively simple.

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“…Amphipods are important food sources for higher level predators such as fishes (Bell and Harmelin-Vivien, 1983;Pinnegar and Polunin, 2000) and possibly decapods (Lepoint et al, 2000;Vizzini et al, 2002). They are also sensitive to anthropogenic and natural disturbances (Conlan, 1994;Thomas, 1993) and are widely considered good potential indicators of ecosystem degradation (Conradi et al, 1997;Guerra-García and García-Gómez, 2001), notably in P. oceanica meadows (Sánchez-Jerez et al, 2000). These meadows, characterized by large heterogeneity at small and medium scales (Balestri et al, 2003;Gobert et al, 2003;Panayotidis et al, 1981;Zupo et al, 2006), could influence variability of amphipod assemblages.…”

Section: Introductionmentioning

confidence: 99%

Multiscale variability of amphipod assemblages in Posidonia oceanica meadows

Sturaro

Lepoint

Vermeulen

et al. 2015

Journal of Sea Research

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The study of spatial patterns is important in understanding the causes of the distribution and abundance of organisms, and it also provides a valuable basis for management and conservation. Amphipod crustaceans are key organisms in seagrass ecosystems. However, little attention has been paid to the spatial scales at which amphipod assemblages may vary. We examined variability patterns of amphipod populations inhabiting Posidonia oceanica meadows, over spatial scales spanning four orders of magnitude (1 to 1000 meters) and for two consecutive years. This study reports the scales that contributed most to spatial variation of amphipod assemblages and explores the potential processes driving the observed patterns, with particular emphasis on habitat features. The number of species, the diversity, and the density of some species varied substantially across years. For most species the highest spatial variation in density and biomass occurred at small scales (1 and 10 meters). Based on density data, the structure of amphipod assemblages did not differ at any scales investigated. The patchiness that occurred at small scales may have been related to habitat features, but only weakly. Instead, we postulate that amphipod behavioral processes likely represent good explanatory factors. Although, small-scale spatial variability can be an important feature of amphipod assemblages in P. oceanica meadows, some patterns may have gone undetected because they occur at scales smaller than those investigated.

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The Amphipod Community as a Bioindicator in Algeciras Bay (Southern Iberian Peninsula) Based on a Spatio‐Temporal Distribution

Cited by 84 publications

References 20 publications

Distribution patterns of the peracarid crustaceans associated with the alga Corallina elongata along the intertidal rocky shores of the Iberian Peninsula

Distribution patterns of the peracarid crustaceans associated with the alga Corallina elongata along the intertidal rocky shores of the Iberian Peninsula

Assessing a Quick Monitoring Method Using Rocky Intertidal Communities as a Bioindicator: A Multivariate Approach in Algeciras Bay

Multiscale variability of amphipod assemblages in Posidonia oceanica meadows

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