Effects of habitat structure and tidal height on epifaunal assemblages associated with macroalgae

Cacabelos, Eva; Olabarria, Celia; Incera, Mónica; Troncoso, Jesús S.

doi:10.1016/j.ecss.2010.05.012

Cited by 94 publications

(79 citation statements)

References 44 publications

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“…Mobile macro-invertebrates are probably more influenced by micro topography of habitat, such as rugosity or three dimensional bottom morphology (Alexander, 2011) than to larger morphological characteristics such as inclination of substrate. The morphological characteristics of macroalgae may influence associated mobile organisms (Chemello & Milazzo, 2002;Cacabelos et al, 2010), but in the studied assemblages the main macroalgal species (Halimeda tuna, Flabellia petiolata, Osmundea pelagosae) were distributed on both substrata, even if with different percentage cover. Moreover, the high spatial variability among sites may be partially responsible for the lack of significant differences between assemblages.…”

Section: Discussionmentioning

confidence: 99%

“…Morphological characteristics of substrate may also affect the distribution of mobile macro-invertebrates, creating refuges and protection from predators (Alexander, 2011). Moreover, the structure of sessile assemblages may deeply influence mobile organisms selecting particular taxa in relation to different morphological features of habitat-forming species (Chemello & Milazzo, 2002;Wikström & Kautsky, 2007;Cacabelos et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

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Spatial and temporal variability of mobile macro-invertebrate assemblages associated to coralligenous habitat

Bedini¹,

Bonechi²,

Piazzi³

2014

Medit. Mar. Sci.

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The study aimed to investigate patterns of spatial and temporal variability of mobile macroinvertebrate assemblages associated to coralligenous habitat. A multi-factorial sampling design was used to test the hypotheses that the structure of assemblages and their spatial and temporal variability changed in relation to substrate inclination. Moreover, macroalgae and sessile macroinvertebrates were also investigated in order to detect eventual relationships between sessile and mobile assemblages. A total of 236 mobile macro-invertebrate taxa were identified, among them 2 Platyhelminthes, 4 Sipuncula, 6 Nemertea, 27 Mollusca, 86 Annelida, 103 Arthropoda, 8 Echinodermata. The results of the study show that mobile macro-invertebrate assemblages of coralligenous habitat were little influenced by the inclination of substrate and by the morphology of sessile organisms, as patterns of variation were different between the two assemblages. Mobile macro-invertebrate assemblages changed among sampling dates within a one-year period and showed high variability at the spatial scale examined.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Spatial and temporal variability of mobile macro-invertebrate assemblages associated to coralligenous habitat

Bedini¹,

Bonechi²,

Piazzi³

2014

Medit. Mar. Sci.

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“…Morphology and complexity of macroalgae might also be important factors in shaping the structure of these assemblages and determining habitat choice (see Schreider et al 2003;Wernberg et al 2004;Schmidt and Scheibling 2006;Cacabelos et al 2010). For example, certain crustaceans are more abundant in branched macroalgae than in macroalgae with a foliose morphology (McDonald and Bingham 2010).…”

Section: Discussionmentioning

confidence: 99%

Effects of macroalgal identity on epifaunal assemblages: native species versus the invasive species Sargassum muticum

2011

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Seaweeds are a refuge from stressful conditions associated with life on rocky intertidal shores, and there is evidence that different macrophytes support different assemblages of mobile epifauna. Introduction of nonindigenous macroalgae may have a great impact on associated epifaunal assemblages and ecosystem processes in coastal areas. Previous studies have reported conflicting evidences for the ability of epifauna to colonize nonindigenous species. Here, we analyzed epifaunal assemblages associated with three species of macroalgae that are very abundant on intertidal shores along the Galician coast: the two native species Bifurcaria bifurcata and Saccorhiza polyschides and the invasive species Sargassum muticum. We collected samples of each species from three different sites at three different times to test whether variability of epifaunal assemblages was consistent over space and time. Epifaunal assemblages differed between the three macroalgae. Results suggested that stability and morphology of habitat played an important role in shaping the structure of epifaunal assemblages. This study also showed that the invasive S. muticum offered a suitable habitat for many invertebrates.

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“…Effects of invasion may be particularly serious when habitat-forming species are involved, as each change in population of these organisms may have severe effects on associated assemblages ). Macroalgae are important habitat-forming organisms in temperate coastal systems, providing a suitable habitat for many epiphytes and mobile invertebrates (Edgar and Moore 1986, Taylor and Cole 1994, Cacabelos et al 2010) and influencing the structure and the biodiversity of coastal systems (Tanaka and Leite 2003, Bates and Dewreede 2007, Wikström and Kautsky 2007.…”

Section: Introductionmentioning

confidence: 99%

Mobile epifaunal assemblages associated with <em>Cystoseira</em> beds: comparison between areas invaded and not invaded by <em>Lophocladia lallemandii</em>

Bedini¹,

Bonechi²,

Piazzi³

2014

Sci. Mar.

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Summary:The study compared the structure of mobile epifaunal assemblages associated with Mediterranean Cystoseira beds between areas invaded and not invaded by Lophocladia lallemandii. A total of 150 taxa were identified: 42 Polychaeta, 78 Arthropoda, 26 Mollusca and 4 Echinodermata. Epifaunal assemblages differed between areas invaded and not invaded by Lophocladia lallemandii when the invasive species reached maximum values of cover and biomass, while differences between conditions were not significant in other periods of the year. The main differences were the greater abundance of amphipods, isopods and polychaetes in invaded areas and the greater abundance of molluscs and decapods in non-invaded areas, while richness and total abundance of organisms were not significantly different between conditions. The effects of Lophocladia lallemandii invasion on Cystoseira-associated assemblages seem to be limited to the period of vegetative growth of the alga and reversible during the period of its vegetative rest.Keywords: biological invasions; Cystoseira crinita; Lophocladia lallemandii; Mediterranean Sea; mobile epifauna. Comunidad de epifauna móvil asociada a las bosques de Cystoseira: comparación entre áreas invadidas y no invadidas por Lophocladia lallemandiiResumen: Este estudio compara la estructura de la comunidad de macroinvertebrados móviles asociada a bosques mediterráneos de Cystoseira entre áreas invadidas por Lophocladia lallemandii y áreas no invadidas. Se identificaron un total de 150 táxones: 42 Polychaeta, 78 Arthropoda, 26 Mollusca, 4 Echinodermata. La comunidad epifaunal difirió entre áreas invadidas por Lophocladia lallemandii y áreas no invadidas cuando la Rhodophyta introducida alcanzó valores máximos de cobertura y biomasa, mientras que no presentó diferencias entre condiciones en otros períodos del año. Estas diferencias fueron principalmente debidas a una mayor abundancia de anfípodos, isópodos y poliquetos en áreas invadidas, y de moluscos y decápodos en áreas no invadidas, mientras que la riqueza y abundancia total de organismos no presentaron diferencias significativas entre condiciones. Los efectos de la invasión de Lophocladia lallemandii sobre las comunidades asociadas a Cystoseira parecen estar restringidos al período de crecimiento vegetativo del alga, siendo reversibles durante el período de pausa de crecimiento.

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Effects of habitat structure and tidal height on epifaunal assemblages associated with macroalgae

Cited by 94 publications

References 44 publications

Spatial and temporal variability of mobile macro-invertebrate assemblages associated to coralligenous habitat

Spatial and temporal variability of mobile macro-invertebrate assemblages associated to coralligenous habitat

Effects of macroalgal identity on epifaunal assemblages: native species versus the invasive species Sargassum muticum

Mobile epifaunal assemblages associated with <em>Cystoseira</em> beds: comparison between areas invaded and not invaded by <em>Lophocladia lallemandii</em>

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