Relevant bibliographies by topics / Epibenthic

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Academic literature on the topic 'Epibenthic'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Epibenthic"

1

Reiss, Henning, and Ingrid Kröncke. "Seasonal variability of epibenthic communities in different areas of the southern North Sea." ICES Journal of Marine Science 61, no. 6 (January 1, 2004): 882–905. http://dx.doi.org/10.1016/j.icesjms.2004.06.020.

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Abstract Between November 2000 and May 2002, epibenthos was sampled monthly with a 2-m beam trawl at three stations along a transect from the southern German Bight towards the northeastern part of the Dogger Bank (North Sea) in order to investigate the seasonal variability of the epibenthic communities. The stations were chosen to reflect a gradient in the hydrigraphic regime, organic matter supply, and fishing effort. The epibenthic community of the southern German Bight was characterized by high biomass and abundance, dominated by Asterias rubens and Ophiura albida. In contrast, at the northern stations in the Oyster Ground and at the Dogger Bank, epibenthic biomass and abundance were substantially lower and the dominant species were mainly crustaceans such as Corystes cassivelaunus, Liocarcinus holsatus, and Pagurus bernhardus. In terms of seasonal variability, mean abundance and biomass in the southern German Bight showed highest values in the summer months and lowest values in the winter months. A similar pattern, but less distinct, was observed in the Oyster Ground. But at the Dogger Bank the pattern was different, with highest abundance and biomass values in the winter months. The differences in spatial and temporal patterns are discussed in relation to differences in temperature, thermal stratification and fishing effort at the three study sites.
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Hostens, K. "Spatial patterns and seasonality in the epibenthic communities of the Westerschelde (Southern Bight of the North Sea)." Journal of the Marine Biological Association of the United Kingdom 80, no. 1 (February 2000): 27–36. http://dx.doi.org/10.1017/s0025315499001538.

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Beamtrawl samples were taken monthly between January 1988 and December 1989 in 14 subtidal stations along the longitudinal axis of the Westerschelde Estuary. The estuary harboured high densities of epibenthic species (total average of 2250 ind 1000 m−2). Only 37 fish species were recorded and three mobile macroinvertebrate species were quantified. Seventeen epibenthic species were common, only eight of which were very abundant. An overall dominance of the brown shrimp Crangon crangon was noted. The near absence of anadromous and freshwater species was correlated with the low oxygen concentrations upstream the Dutch–Belgian border. The epibenthic species could be divided into a polyhaline and a mesohaline community along the main salinity–oxygen–turbidity gradients of the estuary. The mesohaline zone was characterized by higher densities and biomasses for shrimps, gobies and flatfish. The spatial structure in the epibenthic community of the polyhaline zone was more influenced by the watermasses from the sea and inflowing channels, and was correlated with the degree of exposure (current velocities and tides). A classification is proposed, based on the season in which the epibenthic species occur in the estuary, and on their life stages and abundances during that period. The monthly data demonstrate that while the eight abundant epibenthic species were generally present throughout the year (summer or winter resident), the majority tended to appear in the Westerschelde at varying times (summer, winter or bimodal) and often remained in large numbers (nine common species) for only a short time. The fact that mainly juveniles were recorded in the higher density-classes, suggests that the Westerschelde Estuary still acts as a nursery area for many epibenthic species.
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Suzuki, Go, and Takeshi Hayashibara. "Do epibenthic algae induce species-specific settlement of coral larvae?" Journal of the Marine Biological Association of the United Kingdom 91, no. 3 (June 2, 2010): 677–83. http://dx.doi.org/10.1017/s0025315410000573.

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Effect of epibenthic algae as species-specific coral settlement inducers was examined by laboratory experiments using six Acropora species. When epibenthic algae grew on artificial plates at three depths (shallow, middle and deep) on a reef slope over a period of two months, there was no effect as species-specific inducers. However, when the growth period was prolonged to five months, the larvae of Acropora digitifera which dominates on the shallow reef slope mainly settled on the plates that were conditioned at the shallow depth, while the larvae of A. muricata which dominates on the middle slope concentrated on the plates that were conditioned at the middle depth. These results indicate that epibenthic algae may act as a cue for the habitat selection of Acropora corals as a settlement inducer. However, the fact that there was no preference for specific plates in other species suggested that epibenthic algae do not act as a sole indicator in selecting a suitable settlement place for Acropora larvae.
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Brattegard, T., and J. H. Fosså. "Replicability of an epibenthic sampler." Journal of the Marine Biological Association of the United Kingdom 71, no. 1 (February 1991): 153–66. http://dx.doi.org/10.1017/s0025315400037462.

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Hyperbenthos was sampled at six stations on the western slope of the Norwegian Trough. Four hauls, two day and two night replicates were taken at each station. The replicates were analyzed based on all sampled individuals of Mysidacea and Decapoda Natantia using Shannon diversity index, Spearman rank correlation, G-test, Bray-Curtis similarity index and Correspondence Analysis. The sampler provided samples of mysids and shrimps with an acceptable level of replicability based on number of individuals and diversity. In a cost-efficient context it is satisfactory to take only one sample at a station.
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Næsje, T. F., B. Jonsson, O. T. Sandlund, and G. Kjellberg. "Habitat Switch and Niche Overlap in Coregonid Fishes: Effects of Zooplankton Abundance." Canadian Journal of Fisheries and Aquatic Sciences 48, no. 12 (December 1, 1991): 2307–15. http://dx.doi.org/10.1139/f91-271.

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Vendace (Coregortus albula) in Lake Mjøsa lived in the pelagic zone and gillnet catches were correlated with water temperature (r2 = 0.457, p < 0.005). Whitefish (Coregonus lavaretus) exploited both epibenthic and pelagic areas. Whitefish with body lengths between 25 and 35 cm moved from the epibenthic to pelagic zone during summer; other length groups remained in epibenthic habitats. The pelagic fish returned to epibenthic areas in the autumn. Cladocerans were important food items for both fish species in the pelagic zone. The large copepod Limnocalanus macrurus was eaten only by vendace whereas surface insects were more important prey for whitefish. This suggests that vendace is the more specialized zooplanktivore. The pelagic gillnet catch of whitefish and the pelagic habitat overlap between whitefish and vendace increased with increasing zooplankton densities at depths between 0 and 50 m (r2 = 0.609 and 0.494, respectively, p < 0.01). During spring and autumn we observed a time lag between the change in zooplankton abundance and habitat switches of whitefish. The fish moved to the more profitable habitat several days after food availability had changed, indicating an element of learning in choice of habitat.
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Munsch, Stuart H., Julie S. Barber, Jeffery R. Cordell, Peter M. Kiffney, Beth L. Sanderson, and Jason D. Toft. "Small invertebrates in bivalve-cultivated and unmodified habitats of nearshore ecosystems." Hydrobiologia 848, no. 6 (February 22, 2021): 1249–65. http://dx.doi.org/10.1007/s10750-021-04520-1.

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AbstractMany nearshore ecosystems are modified by aquaculture, including bivalve culture to produce food and restore extirpated populations. Small invertebrates in nearshore ecosystems support fundamental ecological processes, but the effects of bivalve culture on invertebrates are incompletely understood. Here, we compared invertebrate assemblages from multiple studies of bivalve-cultivated and unmodified nearshore habitats along the US west coast. In general, unmodified eelgrass and nearby off-bottom culture habitats with eelgrass present were inhabited by a greater abundance, richness, and diversity of epibenthic invertebrates than bottom culture and bare (mud, sand) habitats that both lacked eelgrass. Findings of individual studies suggested: minor differences in epibenthic invertebrate assemblages associated with various aquaculture practices; restoring native oysters to mudflats did not detectably alter epibenthic invertebrate abundances; epibenthic invertebrates were more abundant on shell hash introduced to mudflats than unmodified mudflats; and benthic invertebrates were less abundant, rich, and diverse in habitats cultured on bottom by Manila clams. Considering the range of these patterns, there appears to be potential for coastal communities to restore extirpated bivalve populations or develop bivalve culture practices that meet objectives to grow food while maintaining nearshore ecosystems’ fundamental processes supported by robust invertebrate assemblages.
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Service, M., and B. H. Magorrian. "The Extent and Temporal Variation of Disturbance to Epibenthic Communities in Strangford Lough, Northern Ireland." Journal of the Marine Biological Association of the United Kingdom 77, no. 4 (November 1997): 1151–64. http://dx.doi.org/10.1017/s0025315400038686.

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Side-scan sonar and underwater video were used to determine the impact of a trawl fishery on an epibenthic community associated with the horse mussel, Modiolus modiolus in a Northern Ireland sea lough. The presence of marks caused by trawl otter-boards on the sediments could be clearly seen using side-scan sonar and changes to the epibenthos are described from the video survey. It is apparent from the side-scan sonar survey that changes have occurred in the structure of the superficial sediments on heavily trawled areas. However, there was no clear indication of temporal changes. The utility of side-scan sonar coupled with GIS techniques to detect temporal and spatial effects is discussed.
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Hesthagen, T., O. Hegge, J. Skurdal, and B. K. Dervo. "Differences in habitat utilization among native, native stocked, and non-native stocked brown trout (Salmo trutta) in a hydroelectric reservoir." Canadian Journal of Fisheries and Aquatic Sciences 52, no. 10 (October 1, 1995): 2159–67. http://dx.doi.org/10.1139/f95-808.

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Native and native-stocked brown trout (Salmo trutta) in Lake Tesse, a regulated hydroelectric reservoir (southern Norway), were spatially segregated according to size: small individuals occurred mainly in the epibenthic habitat and larger individuals mainly in the pelagic habitat. In contrast, all size groups of non-native stocked brown trout were mostly restricted to the epibenthic habitat. Age-specific lengths were generally larger for non-native than for native stocked trout, which were larger than native fish. However, growth rate between age 3 and 4 was significantly lower for non-native stocked fish than for native and native stocked fish. Differences in body length were mainly due to strain but also to some extent to habitat. Native fish had significantly fuller stomachs in the pelagic than in the epibenthic habitat in summer. Epibenthic non-native fish had significantly fuller stomachs than native and native stocked fish in August but not in July. Native and native stocked fish fed mainly on surface insects and planktonic crustaceans in both habitats. We hypothesize that the non-native brown trout stocked in Lake Tesse do not use the pelagic habitat in the home lake and are therefore less adapted to utilize such habitat than populations originating from lakes where pelagic habitat is available.
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Starmans, A., and J. Gutt. "Mega-epibenthic diversity: a polar comparison." Marine Ecology Progress Series 225 (2002): 45–52. http://dx.doi.org/10.3354/meps225045.

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Gaston, Gary R. "Green-Winged Teal Ingest Epibenthic Meiofauna." Estuaries 15, no. 2 (June 1992): 227. http://dx.doi.org/10.2307/1352696.

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Dissertations / Theses on the topic "Epibenthic"

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Coman, Francis Edmund, and n/a. "The Role of Epibenthic and Planktonic Fauna in Subtropical Prawn Grow Out Ponds." Griffith University. School of Environmental and Applied Science, 2003. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20030926.091736.

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The assemblage composition, biomass and dynamics of zooplankton and epibenthos were examined in a commercial prawn pond in southeast Queensland over two seasons. Physico-chemical characteristics of the pond water were measured concurrently. Numbers and biomass of zooplankton in the surface tows (140 micrometre mesh) varied from 8 ind. L-1 (44 micrograms L-1) to 112 ind. L-1 (324 micrograms L-1) in the first season, with peaks in biomass corresponding to peaks in numbers. In the second season the zooplankton numbers varied from 12 to 590 ind. L-1, but peaks in numbers did not correspond with peaks in biomass, which varied from 28 to 465 micrograms L-1. This was due to differences in the size of the dominant taxa across the season. Although this occurred in both seasons, the effect on biomass was more pronounced in the second season. In both seasons, immediately after the ponds were stocked with prawn postlarvae there was a rapid decline in zooplankton numbers, particularly of the dominant larger copepods. This was probably due to predation by the postlarvae. Subsequent peaks in zooplankton numbers were principally due to barnacle nauplii. The largest peaks in zooplankton numbers occurred before stocking in the first season, but the largest peaks were in the middle of the second season. While changes in abundance and biomass of the zooplankton assemblage were not correlated with physico-chemical characteristics in the first season, there were correlations between zooplankton numbers and temperature, dissolved oxygen, pH and secchi disk readings in the second season. No correlations were found with zooplankton biomass and physico-chemical characteristics in the second season. The correlations in the second season were mainly due to the high prevalence of barnacle nauplii through the middle part of the season, and may reflect suitable conditions for barnacle reproduction. Epibenthic faunal abundance in the beam trawls (1 mm mesh) peaked at 14 ind. m-2 and 7 ind. m-2 in the first and second seasons respectively and the biomasses at 0.8 g m-2 and 0.7 g m-2. Peaks in abundance of epibenthos did not correspond to peaks in biomass. This was due to large differences in the size of the taxa across the seasons. Sergestids (Acetes sibogae) and amphipods were the most abundant taxa in beam trawl samples. Amphipods were only abundant in the first season, with their numbers increasing towards the end of the grow out period. Acetes were abundant in both seasons, but were dominant in the second season. Correlations between physico-chemical parameters and epibenthos numbers were found to be strongly influenced by the dominant taxa in each season. In the first season, negative correlations were found between epibenthos abundance and pH and temperature. These relationships may reflect an effect on the growth of macroalgae in the pond, with which the amphipods were strongly associated, rather than a direct effect on the epibenthos. In the second season, a positive correlation existed between temperature and epibenthos abundance, however this was strongly influenced by the very high abundance of Acetes in the last sampling period. No correlations were found between epibenthic fauna biomass and physico-chemical parameters. Abundances of epibenthic fauna were not related to zooplankton densities indicating this source of food was not likely to be a limiting factor. Neither the pond water exchange regime nor moon phase could explain changes observed in abundances of zooplankton or epibenthos assemblages in the first season, however the sampling regime was not designed to specifically investigate these effects. In the second season water exchanges were sampled more rigorously. The density of zooplankton in the outlet water was from 2 to 59% of the density of zooplankton in the pond, and the zooplankton density of the inlet water was from 9 to 50% of the outlet water. The number of zooplankton recruited into the pond from the inlet water, after the prawns were stocked, was negligible and contributed little to changes observed in zooplankton assemblages. Reproduction of barnacles within the pond appeared to play the most important role in changes in the assemblage. Water exchange did, however, appear to play a greater role in the changes observed in epibenthic fauna assemblages. In the last season of sampling the feeding of the dominant epibenthic species, Acetes sibogae, was examined using a combination of gut content and stable isotope analysis. Acetes gained little nutrition directly from the pelleted feed, probably relying primarily on zooplankton as their direct food source. Other dietary items such as macroalgae also played a role in the nutrition of the Acetes. If Acetes numbers were high at the beginning of a season they may compete with the newly stocked prawns for the zooplankton resource. However, they will not compete with the prawns later in the season when the prawns are gaining most of their nutrition from the pelleted feed. Overall it appears that zooplankton are important to the nutrition of the prawns at the beginning of the season when the assemblage is usually dominated by copepods. Later in the season the assemblage is dominated by barnacle nauplii which are recruited from within the pond. The establishment of an abundant assemblage of suitable zooplankton species before stocking prawn postlarvae would appear to be beneficial, if not essential. The assemblage of epibenthic fauna changes throughout the season as new recruits are brought in from outside the pond. Epibenthic faunal assemblages in ponds from southeast Queensland are dominated by Acetes which are not likely to adversely affect the production of prawns unless they are particularly abundant early in the grow out season when the prawns would be utilising the same food resources as Acetes.
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Rubin, J. A. "Spatial and temporal interactions in sublittoral epibenthic communities." Thesis, University of Reading, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.354095.

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Boström, Minna. "Epibenthic predators and their prey : interactions in a coastal food web /." Åbo : Department of biology/environmental and marine biology, Åbo akademi university, 2002. http://catalogue.bnf.fr/ark:/12148/cb39933839r.

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Netchy, Kristin. "Epibenthic Mobile Invertebrates along the Florida Reef Tract: Diversity and Community Structure." Scholar Commons, 2014. https://scholarcommons.usf.edu/etd/5085.

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Benthic mobile invertebrates are important components of coral-reef diversity and community structure, though, in most cases, their ecological contributions are poorly known. Baseline information on their diversity, prevalence, assemblages, and ecological roles is needed to aid in the conservation of coral-reef habitats. The objectives of this study are to 1) describe diversity and assemblages of epibenthic, mobile invertebrates in shallow water coral-reef communities in Florida, 2) evaluate their ecological roles by reviewing published literature on diet, and 3) measure the degree of linear dependence between mobile invertebrates and scleractinian corals. Underwater surveys were conducted in the summer of 2013 at 40 sites distributed along the Florida Reef Tract from Broward County to the Dry Tortugas. The presence/absence of all mobile, epibenthic invertebrate fauna observed were recorded and identified to the lowest level possible. The survey data include 618 records of 116 unique taxa, 83 species, 61 genera, 46 families, 19 orders, seven classes, and four phyla of mobile invertebrates, comprising herbivores, detritivores, carnivores, omnivores, and suspension feeders. These taxa represent 22% of the comparable taxa in a historical dataset that spans 60 years, plus an additional 18 taxa. The survey data also show that the percent composition of major phyla is similar to the historical dataset, despite taxonomic bias evident in the historical dataset. During the survey, novel unique taxa were encountered frequently, but were seldom recurrent, which highlights their cryptic nature. While regional patterns were not identified in the study, assemblages of dominant taxa were characteristic of reef type: echinoderms were the most diverse on patch reefs and southeast Florida reef complexes, mollusks were most diverse on shallow bank reefs, and arthropods were diverse on deep bank reefs, Southeast Florida reef complexes, and shallow bank reefs. Herbivorous mobile invertebrate diversity was negatively correlated with scleractinian coral diversity, underlining competition between corals and macroalgae, and association of herbivores with macroalgae. All of these results suggest that reef types are distinct, but interrelated communities of fauna having specific habitat requirements and important roles. This study also reinforces the challenges in assessing the diverse and often cryptic mobile invertebrate fauna and emphasizes the need for further research and monitoring to detect changes in their communities for the conservation of Florida reef systems.
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Hawkins, Susan Terry. "The epibenthic colonization of artificial subtidal habitats at the Cape d'Aguilar Marine Reserve, Hong Kong." Thesis, Hong Kong : University of Hong Kong, 1998. http://sunzi.lib.hku.hk/hkuto/record.jsp?B20357801.

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Seitz, Rochelle D. "The role of epibenthic predators in structuring marine soft-bottom communities along an estuarine gradient." W&M ScholarWorks, 1996. https://scholarworks.wm.edu/etd/1539616850.

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A unifying theory of community regulation in soft-bottom systems remains elusive, despite extensive field studies on factors controlling community structure. Here, I have (1) reviewed models of community regulation, (2) examined the role of predation in controlling benthic diversity along a salinity gradient, (3) examined effects of predation upon an abundant bivalve, Macoma balthica, and (4) revised a model of community regulation in an estuarine soft-bottom system. The Menge and Sutherland (MS) "consumer stress model" posits that consumers feed ineffectively in harsh environments, and the importance of physical disturbance, competition and predation varies with recruitment, environmental conditions, and trophic position. In this model, competition for resources depends directly upon the level of recruitment. I have revised the model to fit soft-bottom systems by changing the recruitment axis to a "recruitment: resource ratio." Hence, the impact of a given level of recruitment depends upon resource availability. According to the MS model, predation is most important in determining community structure when environmental conditions are not severe. I investigated the applicability of the MS model in a soft-bottom estuarine community. I quantified predator abundance, prey abundance and diversity, and the differential effect of predation on species diversity and survival of an abundant prey species, Macoma balthica, along an estuarine gradient in two tributaries of Chesapeake Bay. Benthic diversity was lower in upriver high-stress habitats than downriver low-stress habitats, in agreement with predictions of the MS model. However, the following findings are inconsistent with model predictions: (1) predator abundance was greater upriver, (2) predation intensity and its impact on benthic diversity were greater upriver, and (3) predation-induced mortality of transplanted Macoma balthica clams, and natural mortality of clams were higher upriver. An alternative community regulation model applies to this system because higher predator abundance and predation intensity in higher environmental stress is contrary to the MS model predictions. Predators aggregated upriver where carbon production was increased, and prey were abundant. Hence, a more suitable model for this soft-bottom system is one that incorporates the effects of production and predation along with recruitment, competition and environmental stress.
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Fava, Federica <1978&gt. "Spatial and temporal variability and ecological processes in the epibenthic assemblages of the northern Adriatic Sea." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2011. http://amsdottorato.unibo.it/3677/.

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Several coralligenous reefs occur in the soft bottoms of the northern Adriatic continental shelf. Mediterranean coralligenous habitats are characterised by high species diversity and are intrinsically valuable for their biological diversity and for the ecological processes they support. The conservation and management of these habitats require quantifying spatial and temporal variability of their benthic assemblages. This PhD thesis aims to give a relevant contribution to the knowledge of the structure and dynamics of the epibenthic assemblages on the coralligenous subtidal reefs occurring in the northern Adriatic Sea. The epibenthic assemblages showed a spatial variation larger compared to temporal changes, with a temporal persistence of reef-forming organisms. Assemblages spatial heterogeneity has been related to morphological features and geographical location of the reefs, together with variation in the hydrological conditions. Manipulative experiments help to understand the ecological processes structuring the benthic assemblages and maintaining their diversity. In this regards a short and long term experiment on colonization patterns of artificial substrata over a 3-year period has been performed in three reefs, corresponding to the three main types of assemblages detected in the previous study. The first colonisers, largely depending by the different larval supply, played a key role in determining the heterogeneity of the assemblages in the early stage of colonisation. Lateral invasion, from the surrounding assemblages, was the driver in structuring the mature assemblages. These complex colonisation dynamics explained the high heterogeneity of the assemblages dwelling on the northern Adriatic biogenic reefs. The buildup of these coralligenous reefs mainly depends by the bioconstruction-erosion processes that has been analysed through a field experiment. Bioconstruction, largely due to serpulid polychaetes, prevailed on erosion processes and occurred at similar rates in all sites. Similarly, the total energy contents in the benthic communities do not differ among sites, despite being provided by different species. Therefore, we can hypothesise that both bioconstruction processes and energetic storage may be limited by the availability of resources. Finally the major contribution of the zoobenthos compared to the phytobenthos to the total energetic content of assemblages suggests that the energy flow in these benthic habitats is primarily supported by planktonic food web trough the filter feeding invertebrates.
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Linse, Katrin. "Die Verbreitung epibenthischer Mollusken im chilenischen Beagle-Kanal = Distribution of epibenthic mollusca from the Chilean Beagle Channel /." Bremerhaven : Alfred-Wegener-Institut für Polar- und Meeresforschung, 1997. http://www.gbv.de/dms/bs/toc/226600386.pdf.

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Bellon, Marianna. "Variabilità spaziale e temporale dei popolamenti epibentonici sommersi delle Isole Tremiti." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017.

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The present study aimed at estimating the spatial distribution and temporal variation of epibenthic assemblages Tremiti Islands (42° 07’ North 15° 30’ East) by photographic sampling from 2012 to 2015 at 2 randomly selected areas within 2 sites and at 2 depths (6 and 18 m depth). Overall, 65 taxa were identified. The dominant taxa were Peyssonnelia spp., Dyctiotales, Codium bursa, Codium effusum, Halimeda tuna, Pseudochlorodesmis furcellata, algal turf, Ircinia spp., Chondrosia reniformis and Rocellaria dubia. Composition of the assemblages varied through years and among sites. As a general pattern, shallower assemblages were more variable in time. Although the study was limited to the euphotic zone, these observations support the general tendency, already described in deeper investigations, toward greater stability and less dynamism with increasing depth. Result indicated that patterns of distribution and abundance of organisms differed between the two depths for all the years. The assemblages showed a high diversity, especially in relation to the smaller spatial scale examined. Sites clearly differed in the abundance of the main taxa and some taxa showed site-specific trend. Coralligenous outcrops rank among the most important ecosystems in the Mediterranean Sea, primarily because of their biodiversity. Information on the spatial and temporal variability of the composition and structure of coralligenous assemblages is essential for the management and conservation of these unique biogenic habitat.
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Ferro, Francesca. "Ruolo della gorgonia Paramuricea clavata (Risso 1826) nei popolamenti epibentonici coralligeni dell'Isola d'Elba." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amslaurea.unibo.it/10054/.

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The red gorgonian Paramuricea clavata is considered a key species in Mediterranean coralligenous habitats and, when present at high density, its colonies may develop “gorgonian forests”, which are three-dimensional structures that increase habitat complexity. Mediterranean coralligenous habitats support high biodiversity but the structure and heterogeneity of communities can be strongly modified by several kinds of human-derived impacts. The global environmental change and human activity could threaten the coralligenous habitats and during the last few decades, Mediterranean suspension feeders have been involved in mass mortality events, in which P. clavata was one of the most affected. Without the complex three-dimensional structures formed by P. clavata, many benthic species may have not adequate sheltering and feeding opportunities. The aim of the present study was to investigate the ecological role of Paramuricea clavata in coralligenous habitats by comparing epibenthic assemblages established inside and outside gorgonian forests. This study was carried out in four sites randomly chosen, along the south-east coast of Elba island (north-western Mediterranean). The structure of the epibenthic assemblages were significantly different between area with and without gorgonians. Main differences concern very important taxa in the coralligenous bioconstruction processes like the encrusting red algae, Peyssonnelia spp. and Halimeda tuna, which were more abundant in presence of gorgonians. On the contrary, algal turf, mucilaginous algae and the invasive seaweed Caulerpa cylindracea were more abundant in areas without P. clavata. The presence of gorgonians may have a positive effect also on species diversity. The results of this study highlight the ecological role of P. clavata in the coralligenous habitats.
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Books on the topic "Epibenthic"

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Koch, Volker. Epibenthic production and energy flow in the Caeté mangrove estuary, North Brazil. Bremen: Zentrum für Marine Tropenökologie, 1999.

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Haas, Melora Elizabeth. Effects of large overwater structures on epibenthic juvenile salmon prey assemblages in Puget Sound, Washington. [Olympia, Wash.]: Washington State Dept. of Transportation, 2002.

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Miron, G. Predation potential by various epibenthic organisms on commercial bivalve species in Prince Edward Island: Preliminary results. Charlottetown, P.E.I: Dept. of Fisheries, Aquaculture and Environment, 2002.

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Miron, Gilles. Predation potential by various epibenthic organisms on commercial bivalve species in Prince Edward Island: Preliminary results. [Ottawa]: Fisheries and Oceans, 2002.

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5

Linse, Katrin. Die Verbreitung epibenthischer Mollusken im chilenischen Beagle-Kanal =: Distribution of epibenthic mollusca from the Chilean Beagle Channel. Bremerhaven: Alfred-Wegener-Institut für Polar- und Meeresforschung, 1997.

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6

Wiggins, James R. The effect of landfill leachate from Padilla Bay on the abundance of epibenthic harpacticoid copepods and sediment toxicity measured with the amphipod bioassay (Rhepoxinius abronius). Mount Vernon, Wash: Padilla Bay National Estuarine Research Reserve, 1992.

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7

Starmans, Andreas. Vergleichende Untersuchungen zur Ökologie und Biodiversität des Mega-Epibenthos der Arktis und Antarktis =: Comparative studies on the ecology and biodiversity of the Arctic and Antarctic Mega-Epibenthos. Bremerhaven: Alfred-Wegener-Institut für Polar- und Meeresforschung, 1997.

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8

Canada. Dept. of Fisheries and Oceans. Nearshore Epibenthos of the Campbell River Estuary and Discovery Passage, 1982, in Relation to Juvenile Chinook Diets. S.l: s.n, 1986.

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9

Canada. Dept. of Fisheries and Oceans. Nearshore epibenthos of the Campbell River estuary and discovery passage, 1983, in relation to juvenile chinook diets. S.l: s.n, 1988.

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10

U.S. Fish and Wildlife Service. Western Washington Fishery Resources Office., ed. Impact of beach gravel enhancement on epibenthic zooplankton at Lincoln Park, Seattle, Washington. Olympia, Wash: Western Washington Fishery Resource Office, U.S. Fish and Wildlife Service, 1990.

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Book chapters on the topic "Epibenthic"

1

Kaiser, Stefanie, and Nils Brenke. "Epibenthic Sledges." In Biological Sampling in the Deep Sea, 184–206. Chichester, UK: John Wiley & Sons, Ltd, 2016. http://dx.doi.org/10.1002/9781118332535.ch9.

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Baretta-Bekker, J. G., and A. Stam. "The Construction of the Epibenthic Submodel." In Tidal Flat Estuaries, 153–67. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-73753-4_8.

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Castillo, Sara, Fran Ramil, and Ana Ramos. "Composition and Distribution of Epibenthic and Demersal Assemblages in Mauritanian Deep-Waters." In Deep-Sea Ecosystems Off Mauritania, 317–53. Dordrecht: Springer Netherlands, 2017. http://dx.doi.org/10.1007/978-94-024-1023-5_8.

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De Broyer, Claude, Yves Scailteur, Gauthier Chapelle, and Martin Rauschert. "Diversity of epibenthic habitats of gammaridean amphipods in the eastern Weddell Sea." In Ecological Studies in the Antarctic Sea Ice Zone, 51–60. Berlin, Heidelberg: Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/978-3-642-59419-9_8.

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Noffke, Nora. "Epibenthic Cyanobacterial Communities Interacting with Sedimentary Processes in Siliciclastic Depositional Systems (Present and Past)." In Fossil and Recent Biofilms, 265–80. Dordrecht: Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-017-0193-8_17.

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Thiel, Martin. "Epibenthic predation in marine soft-bottoms: being small and how to get away with it." In Interactions and Adaptation Strategies of Marine Organisms, 11–19. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-017-1907-0_2.

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Christiansen, B., and H. Thiel. "Deep-Sea Epibenthic Megafauna of the Northeast Atlantic: Abundance and Biomass at Three Mid-Oceanic Locations Estimated From Photographic Transects." In Deep-Sea Food Chains and the Global Carbon Cycle, 125–38. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2452-2_8.

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8

Everaarts, J. M., R. Heesters, and C. V. Fischer. "Heavy metals (Cu, Zn, Pb, Cd) in sediment, Zooplankton and epibenthic invertebrates from the area of the continental slope of the Banc d’Arguin (Mauritania)." In Ecological Studies in the Coastal Waters of Mauritania, 41–58. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-1986-3_5.

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9

Robertson, A. I., and S. J. M. Blaber. "Plankton, epibenthos and fish communities." In Tropical Mangrove Ecosystems, 173–224. Washington, D. C.: American Geophysical Union, 1992. http://dx.doi.org/10.1029/ce041p0173.

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10

Baretta-Bekker, J. G. "Results and Analysis of the Epibenthos Submodel." In Tidal Flat Estuaries, 228–39. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-73753-4_12.

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Conference papers on the topic "Epibenthic"

1

Range, Pedro, Rodrigo Riera, Naeem Abdulaziz Aziz, Mohammed Mustafa Al Dibis, Jessica Bouwmeester, Steffen Sanvig Bach, and Radhouane Ben-Hamadou. "Epibenthic assemblages on vertical artificial substrates: recruitment and succession patterns in offshore Qatari waters." In Qatar Foundation Annual Research Conference Proceedings. Hamad bin Khalifa University Press (HBKU Press), 2018. http://dx.doi.org/10.5339/qfarc.2018.eepd883.

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Reports on the topic "Epibenthic"

1

Wheatcroft, Robert A. Feedbacks Between Bottom Roughness, Bioturbation Intensity and Epibenthic Microalgae. Fort Belvoir, VA: Defense Technical Information Center, September 1999. http://dx.doi.org/10.21236/ada613925.

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Wheatcroft, Robert A. Feedbacks Between Bottom Roughness, Bioturbation Intensity and Epibenthic Microalgae. Fort Belvoir, VA: Defense Technical Information Center, September 2001. http://dx.doi.org/10.21236/ada624804.

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Vrooman, Jip, Marcel de Vries, and Ingrid Tulp. Seizoensveranderingen in vis en epibenthos in de Waddenzee : pilotproject maandelijkse monitoring. IJmuiden: Stichting Wageningen Research, Centrum voor Visserijonderzoek (CVO), 2020. http://dx.doi.org/10.18174/515427.

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Vrooman, Jip, and Ingrid Tulp. Seizoensveranderingen in vis en epibenthos in de Waddenzee : pilotproject maandelijkse monitoring - update 2020. IJmuiden: Stichting Wageningen Research, Centrum voor Visserijonderzoek (CVO), 2021. http://dx.doi.org/10.18174/541576.

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Mulder, I. M., I. Tulp, and T. Ysebaert. Ontwikkelingen van bodemgebonden vis en epibenthos in de Oosterschelde in de periode 1970-2018. Yerseke: Wageningen Marine Research, 2020. http://dx.doi.org/10.18174/518404.

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