Marinas: An overlooked habitat for exploring the relation among polychaete assemblages and environmental factors

Fernández-Romero, Alejandro; Moreira, Juan; Guerra-García, José M.

doi:10.1016/j.marpolbul.2018.11.064

Cited by 15 publications

(3 citation statements)

References 75 publications

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“…Therefore, effects of tide and total suspended matter on those assemblages can be collinear. The species diversity of benthic macrofauna is often low in turbid waters (Andrew et al., 2006; Fernández‐Romero et al., 2019; Melo et al., 2013) as high total suspended matter clogs feeding structures and reduces the feeding efficiency of suspension feeders (Newcombe & Macdonald, 1991). However, tidal range and total suspended matter had little influence on macroalgal diversity.…”

Section: Discussionmentioning

confidence: 99%

Latitudinal biodiversity gradients of rocky intertidal assemblages: Spatial scales and complex associations with environmental factors

Hadiyanto,

Prince,

Hovey

2024

Marine Ecology

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Latitudinal biodiversity gradients vary across taxonomic groups and spatial scales, and various environmental factors have been associated with those patterns. However, it remains unknown whether taxonomic groups with strong ecological associations have similar or different latitudinal patterns. Macroalgae are foundation assemblages on rocky intertidal shores and are often inhabited by invertebrates, predominantly polychaetes. This study analysed latitudinal patterns of macroalgae and their associated polychaetes at different spatial scales and determined how environmental factors influenced those patterns. Macroalgae and polychaetes were collected from transects within 38 rocky intertidal shores of Western Australia at 14 latitudes between 18° S and 34° S. Latitudinal gradients in species richness, diversity (Simpson's diversity index) and abundance were evaluated at transect, site and latitudinal scales. Relationships between environmental factors and rocky intertidal assemblages were analysed using piecewise structural equation modelling based on direct, indirect and complex models. Macroalgae showed increases in species richness, diversity and abundance at transect and site scales towards high latitudes, but species richness and diversity patterns were unclear at the latitudinal scale where transect and site data were pooled. In contrast, polychaete diversity decreased towards high latitudes, although this pattern was unclear at the transect scale. Polychaete richness and abundance tended to follow parabolic patterns that peaked at 27° S. Relationships between environmental factors and rocky intertidal assemblages were best described by a complex model, with significant relationships more often at transect and site scales. Sea surface temperatures showed the strongest relationship with macroalgal and polychaete distributions.

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Section: Discussionmentioning

confidence: 99%

Latitudinal biodiversity gradients of rocky intertidal assemblages: Spatial scales and complex associations with environmental factors

Hadiyanto,

Prince,

Hovey

2024

Marine Ecology

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“…The low diversity of the vagile assemblage on marinas has been related to great anthropic pollution (e.g., heavy metals and nutrient enrichment) (Fernández-Romero et al, 2019). Although some metals are needed for the metabolism of marine organisms (e.g., as constituents of enzymes) (Jakimska et al, 2011), high concentrations of metals reduce the abundance of native specialist species while favoring generalist and opportunist ones (Johnston & Roberts, 2009).…”

Section: Factors Determining the Amphipod Assemblagementioning

confidence: 99%

Influence of environmental factors and sessile biota on vagile epibionts: The case of amphipods in marinas across a regional scale

2022

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Marinas are highly anthropized environments, with singular ecological characteristics. In the present study the spatial variability of the amphipod assemblage associated to floating pontoons was analyzed. Moreover, the influence of the environmental data and the sessile biota on the amphipod assemblage structure were assessed. Six marinas were selected along the Southern Iberian Peninsula, three in the Atlantic and three in the Mediterranean, and three floating pontoons were sampled at each marina. Four-teen amphipod species were identified, most of them corresponded to detritivores and generalist species. Statistical analyses considering amphipod composition and abundance did not show significant differences between the Atlantic and the Mediterranean, but there were significant differences among marinas. Copper had a significant correlation with the amphipod assemblage. The sessile species Bugula neritina and Ellisolandia elongata also showed a significant influence on the spatial patterns of the amphipod assemblages. Therefore, environmental conditions and sessile composition seem to affect, simultaneously, the spatial variability of amphipod assemblage associated to floating pontoons in marinas. Both factors are key to understand the singularity of marinas. This fact should be taken into consideration to prevent the use of a single management program in these environments.

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“…These habitats experience a variety of stressors, both seasonal and punctuated. Animals living within these environments must be resilient to changes in abiotic factors including temperature, salinity, and dissolved oxygen (Khalaman, 2013;Fernández-Romero et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Two-year survey of Alitta succinea (Annelida: Nereididae) in fouling communities with notes on morphology and reproduction

Hannon,

Schulze

2024

Ocean Coast. Res.

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Alitta succinea (Leuckart, 1847) is an errant segmented worm from the Nereididae family (Annelida) and is broadly distributed around the greater Atlantic basin. A. succinea is a resilient mobile omnivore that plays an important role in connecting lower and upper levels of the food web. Like many other nereidids, A. succinea metamorphoses into reproductive swimming forms, called epitokes, before entering the water column to spawn. In Galveston, Texas the species A. succinea is commonly found in fouling communities attached to artificial structures in marinas. This study presents a two-year survey of a population found in the Texas A&M University at Galveston Boat Basin. Over the two-year period, we collected over 2,000 A.succinea individuals for a gross comparison of population dynamics and morphometrics. During the summer, we found high numbers of small individuals, indicating a primary recruitment period. This was further corroborated by the high number of epitokes in the summer compared to the winter and spring. During the summer and fall, the observed epitokes were significantly smaller than those found in the winter and spring, which supports previous research that shows a positive relationship between temperature and developmental rates. The continual presence of epitokes indicates the existence of a recruitment process that occurs continuously throughout the year. In terms of morphometrics, atokes and epitokes, both females and males, had their own unique profiles. As we expected, epitokes have larger eyes and wider posterior segments compared to atokes. Interestingly, we found females to be significantly larger than males, no matter the season. This study presents an updated approach to staging sexually reproductive individuals to help standardize taxonomic descriptions.

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Marinas: An overlooked habitat for exploring the relation among polychaete assemblages and environmental factors

Cited by 15 publications

References 75 publications

Latitudinal biodiversity gradients of rocky intertidal assemblages: Spatial scales and complex associations with environmental factors

Latitudinal biodiversity gradients of rocky intertidal assemblages: Spatial scales and complex associations with environmental factors

Influence of environmental factors and sessile biota on vagile epibionts: The case of amphipods in marinas across a regional scale

Two-year survey of Alitta succinea (Annelida: Nereididae) in fouling communities with notes on morphology and reproduction

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