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Journal articles on the topic 'Estuarine invertebrates'

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Author: Grafiati

Published: 4 June 2021

Last updated: 20 February 2023

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1

A. Mallick, Stephen, and Michael M. Driessen. "An inventory of the invertebrates of the Tasmanian Wilderness World Heritage Area." Pacific Conservation Biology 11, no. 3 (2005): 198. http://dx.doi.org/10.1071/pc050198.

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This paper summarizes the information contained in an inventory of invertebrates recorded from the Tasmanian Wilderness World Heritage Area (WHA). The WHA covers an area of 1.38 million hectares in the western half of Tasmania. A total of 1397 terrestrial/freshwater species from 293 families in nine phyla are listed as occurring in the WHA. The most diverse phylum is the Uniramia (904 species, 172 families), followed by the Chelicerata (179 species, 56 families), Aschelminthes (Rotifera: 90 species, 22 families), Crustacea (88 species, 21 families), Mollusca (69 species, 14 families), Annelida (57 species, five families), Platyhelminthes (eight species, one family), and the Onychophora and Nemertea (one species each). Sixty-three marine and estuarine species from six phyla are listed for the limited area of marine/estuarine habitat within the WHA. The terrestrial/freshwater WHA invertebrate fauna is characterized by high Tasmanian endemism (46.7% of species are Tasmanian endemics), and a high proportion of species with a predominantly western-Tasmanian distribution and/or a restricted geographical range. The WHA includes the globally unique Bathurst Harbour estuarine system. The marine and estuarine invertebrate fauna of the estuary is largely undescribed, but is likely to show very high levels of Tasmanian and local endemicity. The characteristics of the WHA invertebrate fauna reflect the extant habitats of the area, as well as past geological and climatic processes that have led to their development. The WHA contains 16 threatened invertebrate species, while a total of 34 introduced terrestrial and seven introduced marine invertebrate species have been recorded from the WHA. The invertebrate fauna of the WHA contributes substantially to the World Heritage faunal values of the area. Formal description of currently undescribed material from Bathurst Harbour is likely to substantially add to the World significance of the WHA. The high level of protection afforded the WHA makes the area important for long-term invertebrate fauna conservation in Tasmania. A full inventory of species can be viewed on the Tasmanian Department of Primary Industries, Water and Environment (DPIWE) website (www.dpiwe.tas.gov.au).

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2

Hutchings, Pat. "Taxonomy of estuarine invertebrates in Australia." Austral Ecology 24, no. 4 (August 1999): 381–94. http://dx.doi.org/10.1046/j.1442-9993.1999.00973.x.

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3

Finlay-Jones, H., V. Raoult, D. Harasti, and T. F. Gaston. "What eats a cauliflower coral? An assessment of predation on the endangered temperate soft coral,." Marine and Freshwater Research 73, no. 3 (November 16, 2021): 307–18. http://dx.doi.org/10.1071/mf21155.

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Temperate soft corals are found in many estuaries around the world and often form large habitats in these environments, yet the functional ecology of soft corals is poorly understood. To understand the functional role of a soft coral in temperate ecosystems, we examined the role of the endangered Dendronepthya australis cauliflower coral as habitat for fishes and invertebrates, and whether associated species used the soft coral as a food source. Using Bayesian stable isotope mixing models of δ13C and δ15N values of soft corals and a suite of potential invertebrate consumers, we found that five of eight soft-coral-associated invertebrates were all likely to be feeding almost exclusively on the soft corals. In situ feeding experiments conducted using baited remote underwater video systems (BRUVS) with soft coral cuttings as ‘bait’ did not identify any larger species as consumers. Fish assemblages studied using remote underwater video systems (RUVS) were diverse in the soft coral habitat and overlapped with assemblages of both sediment and seagrass environments. These results highlighted that these soft corals have a valuable trophic role in estuarine food webs through trophic transfer of nutrients via invertebrate consumers, and that soft coral habitats are used by commercially and recreationally important fishes.

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4

Raven, J. "Notes on molluscs from NW Borneo - Dispersal of molluscs through nipa rafts." Festivus 51, no. 1 (February 1, 2019): 3–10. http://dx.doi.org/10.54173/f511003.

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Nipa rafts regularly form along the NW coast of Borneo, transporting live estuarine molluscs and other invertebrates. Depending on wind direction, currents and tides, they are beached, enter estuaries or float offshore. This paper discusses the potential of such rafts to transport live molluscs to other parts of the same estuary or to other estuaries, thus expanding their range. As nipa palms are known since the Late Cretaceous, transport via nipa rafts may have occurred throughout the Cenozoic.

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5

Coffin, Michael R. S., Kyle M. Knysh, Emma F. Theriault, Christina C. Pater, Simon C. Courtenay, and Michael R. van den Heuvel. "Are floating algal mats a refuge from hypoxia for estuarine invertebrates?" PeerJ 5 (March 23, 2017): e3080. http://dx.doi.org/10.7717/peerj.3080.

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Eutrophic aquatic habitats are characterized by the proliferation of vegetation leading to a large standing biomass that upon decomposition may create hypoxic (low-oxygen) conditions. This is indeed the case in nutrient impacted estuaries of Prince Edward Island, Canada, where macroalgae, from the genusUlva,form submerged ephemeral mats. Hydrological forces and gases released from photosynthesis and decomposition lead to these mats occasionally floating to the water’s surface, henceforth termed floating mats. Here, we explore the hypothesis that floating mats are refugia during periods of sustained hypoxia/anoxia and examine how the invertebrate community responds to it. Floating mats were not always present, so in the first year (2013) sampling was attempted monthly and limited to when both floating and submerged mats occurred. In the subsequent year sampling was weekly, but at only one estuary due to logistical constraints from increased sampling frequency, and was not limited to when both mat types occurred. Water temperature, salinity, and pH were monitored bi-weekly with dissolved oxygen concentration measured hourly. The floating and submerged assemblages shared many of the same taxa but were statistically distinct communities; submerged mats tended to have a greater proportion of benthic animals and floating mats had more mobile invertebrates and insects. In 2014, sampling happened to occur in the weeks before the onset of anoxia, during 113 consecutive hours of sustained anoxia, and for four weeks after normoxic conditions returned. The invertebrate community on floating mats appeared to be unaffected by anoxia, indicating that these mats may be refugia during times of oxygen stress. Conversely, there was a dramatic decrease in animal abundances that remained depressed on submerged mats for two weeks. Cluster analysis revealed that the submerged mat communities from before the onset of anoxia and four weeks after anoxia were highly similar to each other, indicating recovery. When mobile animals were considered alone, there was an exponential relationship between the percentage of animals on floating mats, relative to the total number on both mat types, and hypoxia. The occupation of floating mats by invertebrates at all times, and their dominance there during hypoxia/anoxia, provides support for the hypothesis that floating mats are refugia.

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6

Grant, Alastair, and Andrew D. Briggs. "Toxicity of ivermectin to estuarine and marine invertebrates." Marine Pollution Bulletin 36, no. 7 (July 1998): 540–41. http://dx.doi.org/10.1016/s0025-326x(98)00012-5.

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7

Bianchini, A., M. M. Lauer, M. S. Pedroso, I. F. Barcarolli, S. E. G. Martins, A. F. A. Lima, and G. L. L. Pinho. "16.4. Osmoregulation in estuarine invertebrates: Effects of metals." Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology 148 (August 2007): S67. http://dx.doi.org/10.1016/j.cbpa.2007.06.170.

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8

Amaral, Valter, Henrique N. Cabral, and Melanie J. Bishop. "Effect of runoff from acid-sulfate soils on pneumatophores of the grey mangrove, Avicennia marina." Marine and Freshwater Research 62, no. 8 (2011): 974. http://dx.doi.org/10.1071/mf11003.

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Runoff from acid-sulfate soils (ASS) is increasingly threatening the structure and function of estuarine ecosystems worldwide. Along the eastern coast of Australia, sulfuric acid is known to affect the growth and survival of mangrove saplings; however, impacts of ASS runoff on the structure and function of established mangrove trees are unclear. Pneumatophores, the aerial roots produced by some species of mangrove, are critical sites of gas exchange, allowing these species to persist in waterlogged soils. They also provide physical structure in estuarine sediments, facilitating communities of algae, invertebrates and, at high tide, fish. We tested the hypotheses that Avicennia marina (Forsk.) Vierh. pneumatophores would be less abundant, shorter, thinner and weaker close to major ASS outflow drains. Sampling at sites close to and away from drains within each of two estuaries of New South Wales, Australia, showed no effect of exposure to runoff on pneumatophore density or thickness. Pneumatophores were, however, shorter (~2 cm) and weaker (up to two-fold) at ASS-affected than reference sites. Although the reduced length and strength of pneumatophores at acidified sites may limit the number of epifaunal molluscs they can support, the persistence of dense pneumatophores indicates that the capacity to benefit invertebrates and fish remains.

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9

Setiawan, Edwin, David Relex, and David J. Marshall. "Shallow-water Sponges from a High-sedimentation Estuarine Bay (Brunei, Northwest Borneo, Southeast Asia)." Journal of Tropical Biodiversity and Biotechnology 6, no. 3 (September 29, 2021): 66435. http://dx.doi.org/10.22146/jtbb.66435.

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Tropical estuaries are important habitats for invertebrates including sponges, a group of marine organisms that fulfill significant ecological roles and provide ecosystem services. Here, we describe the sponge fauna from Pulau Bedukang, a small island in a turbid, variable salinity, acidified and eutrophic estuarine bay (Brunei Darussalam, northwest Borneo). We present records for 14 morphological species (OTUs). Six of these species belong to the Haplosclerida, an order of shallow-water sponges that usually tolerate more variable and extreme physical conditions. Our baseline data contribute to the regional biogeography of sponges and present a reference source for ecological studies on marine animals inhabiting variable estuarine environments. This is the first known record of sponges from the northwest Bornean region of the South China Sea that are not associated with a coral ecosystem; other studies have concerned Singapore, peninsular Malaysia, Thailand, Cambodia, Vietnam, southern China, and Taiwan.

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10

da Silva, Renan B., Giovanni A. P. Dos Santos, Ana Luiza L. de Farias, Débora A. A. França, Raianne Amorim Cavalcante, Eliete Zanardi-Lamardo, Jose Roberto Botelho de Souza, and Andre M. Esteves. "Effects of PAHs on meiofauna from three estuaries with different levels of urbanization in the South Atlantic." PeerJ 10 (December 2, 2022): e14407. http://dx.doi.org/10.7717/peerj.14407.

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Estuarine environments are suggested to be the final receivers of human pollution and are impacted by surrounding urbanization and compounds carried by the river waters that flow from the continent. Polycyclic aromatic hydrocarbons (PAHs) are among the contaminants that can reach estuaries and can directly affect marine conservation, being considered highly deleterious to organisms living in these environments. This research investigated the meiofauna of three estuaries exposed to different levels of urbanization and consequently different levels of PAH concentrations, in order to assess how these compounds and environmental factors affect the distribution, structure and diversity of these interstitial invertebrates. A total of 15 major meiofauna groups were identified, with Nematoda being the dominant taxon (74.64%), followed by Copepoda (9.55%) and Polychaeta (8.56%). It was possible to observe significant differences in all diversity indices studied in the estuaries. With the exception of average density, the diversity indices (richness, Shannon index and evenness) were higher in the reference estuary, Goiana estuarine system (GES). On the other hand, the Timbó estuarine system (TES) had the lowest Shannon index value and richness, while the Capibaribe estuarine system (CES) had the lowest evenness value. The latter two estuaries (TES and CES) presented intermediate and high levels of urbanization, respectively. The ecological quality assessment (EcoQ) in the studied estuaries was classified from Poor to Moderate and the estuary with the lowest demographic density in its surroundings, GES, showed a better ecological quality (Moderate EcoQ). A significant distance-based multivariate linear modelling regression (DistLM) was observed between the environmental variables and the density of the meiobenthic community, where PAHs and pH were the main contributors to organism variation. The sediments were characterized by predominance of very fine sand and silt-clay in the most polluted environments, while the control site environment (GES) was dominated by medium grains. The highest concentrations of PAHs were found in the most urbanized estuaries, and directly affected the structure of the interstitial benthic community. The metrics used in the present study proved to be adequate for assessing the environmental quality of the investigated estuaries.

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11

Villares, R., E. Carral, X. M. Puente, and A. Carballeira. "Metal Concentrations in Estuarine Invertebrates in Relation to Sediments." Bulletin of Environmental Contamination and Toxicology 75, no. 3 (September 2005): 592–99. http://dx.doi.org/10.1007/s00128-005-0792-y.

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12

Thompson, D. B. A., D. J. Curtis, and J. C. Smyth. "Patterns of association between birds and invertebrates in the Clyde Estuary." Proceedings of the Royal Society of Edinburgh. Section B. Biological Sciences 90 (1986): 185–201. http://dx.doi.org/10.1017/s026972700000498x.

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SynopsisRelationships between feeding ecology, population dynamics and conservation of estuarine shorebirds are becoming better understood mainly as a result of detailed long-term studies of birds in the northwest European estuaries most vulnerable to industrial and agricultural developments. Until five years ago the tidal flats of the Clyde Estuary held internationally and nationally important populations of ducks (Anatinae) and waders (Charadrii). To understand the reasons for changes in bird distribution it is necessary to know more about the factors which determine distribution. In this paper we examine the pattern of association between the Clyde's birds and their prey by evaluating the extent to which the distribution of birds is related to that of benthic invertebrates, heterospecific birds, season and tidal state.Stepwise multiple regression analysis indicated that heterospecifics had effects on bird distributions over-riding those of prey. In summer, the significant independent variables explained 41–61% variation in bird density (number km−2) and 33% variation in bird feeding hours (bird-hours km−2); in winter they explained 17–35% and 29–32% respectively. The amount of variation explained was greater during flow than ebb tides, and the number of species for which some of the variation was explained was greater in winter than in summer. Three associations, each consisting of two bird species, are suggested: redshank with lapwing, dunlin with mallard, and shelduck with gulls. We provide explanations for some of the mechanisms underlying the above patterns and indicate areas for more detailed observational and experimental work. The integrity of the avian component of the estuarine ecosystem appears to be dependent on associations and interactions between birds as well as between birds and their prey. The associations are labile, and in many species stem from the effect of tidal movement on prey availability.

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13

Grosholz, Edwin D., and Gregory M. Ruiz. "Biological invasions drive size increases in marine and estuarine invertebrates." Ecology Letters 6, no. 8 (August 2003): 700–705. http://dx.doi.org/10.1046/j.1461-0248.2003.00495.x.

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14

Booth, Steven R., Kim Patten, and Leslie New. "Response of estuarine benthic invertebrates to field applications of insecticide." Estuarine, Coastal and Shelf Science 218 (March 2019): 86–94. http://dx.doi.org/10.1016/j.ecss.2018.11.025.

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15

Sakamaki, Takashi, and John S. Richardson. "Retention, breakdown, and biological utilisation of deciduous tree leaves in an estuarine tidal flat of southwestern British Columbia, Canada." Canadian Journal of Fisheries and Aquatic Sciences 65, no. 1 (January 1, 2008): 38–46. http://dx.doi.org/10.1139/f07-151.

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In an estuarine mudflat connected to a mountainous stream, coarse leaf material from deciduous trees was examined for its utilisation by invertebrates, retention, and breakdown rate. Leaves from the stream were deposited in the upper intertidal parts near the stream mouth. Their standing stocks were high in fall (~23.8 g AFDM·m–2) and mostly disappeared by spring. Breakdown rates of red alder leaf packs were higher at subtidal and lower intertidal stations (k = 0.013–0.027·day–1) than at stream channel and upper intertidal stations (k = 0.006–0.009·day–1). Longer contact of leaves with relatively warmer seawater may have enhanced leaf breakdown by microbial activities. In the upper intertidal stations, the decrease in the amount of deposited leaves from fall to spring (k = 0.023–0.039·day–1) was faster than leaf breakdown in the leaf packs, thus physical export was probably significant in the decrease in deposited leaves. Meanwhile, amphipods dominated the invertebrates colonising leaf packs. The invertebrate densities did not significantly differ between natural and polyester leaf packs, suggesting contribution of leaves as a microhabitat rather than a food source. The carbon and nitrogen stable isotope signatures of amphipods indicated that benthic microalgae were their primary food source regardless of natural or artificial leaf packs.

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16

Poulin, Remington X., Serge Lavoie, Katherine Siegel, David A. Gaul, Marc J. Weissburg, and Julia Kubanek. "Chemical encoding of risk perception and predator detection among estuarine invertebrates." Proceedings of the National Academy of Sciences 115, no. 4 (January 8, 2018): 662–67. http://dx.doi.org/10.1073/pnas.1713901115.

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An effective strategy for prey to survive in habitats rich in predators is to avoid being noticed. Thus, prey are under selection pressure to recognize predators and adjust their behavior, which can impact numerous community-wide interactions. Many animals in murky and turbulent aquatic environments rely on waterborne chemical cues. Previous research showed that the mud crab, Panopeus herbstii, recognizes the predatory blue crab, Callinectus sapidus, via a cue in blue crab urine. This cue is strongest if blue crabs recently preyed upon mud crabs. Subsequently, mud crabs suppress their foraging activity, reducing predation by blue crabs. Using NMR spectroscopy- and mass spectrometry-based metabolomics, chemical variation in urine from blue crabs fed different diets was related to prey behavior. We identified the urinary metabolites trigonelline and homarine as components of the cue that mud crabs use to detect blue crabs, with concentrations of each metabolite dependent on the blue crab’s diet. At concentrations found naturally in blue crab urine, trigonelline and homarine, alone as well as in a mixture, alerted mud crabs to the presence of blue crabs, leading to decreased foraging by mud crabs. Risk perception by waterborne cues has been widely observed by ecologists, but the molecular nature of these cues has not been previously identified. Metabolomics provides an opportunity to study waterborne cues where other approaches have historically failed, advancing our understanding of the chemical nature of a wide range of ecological interactions.

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17

Pavičić, Jasenka, Dušica Ivanković, Čedomil Lucu, Bojan Hamer, Marijana Erk, Majda Tušek-Žnidarič, and Ingrid Falnoga. "Ecotoxicological evaluation of metallothionein level in selected tissues of estuarine invertebrates." Toxicology Letters 164 (September 2006): S163. http://dx.doi.org/10.1016/j.toxlet.2006.06.338.

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18

Richmond, C. E., and S. A. Woodin. "Effect of salinity reduction on oxygen consumption by larval estuarine invertebrates." Marine Biology 134, no. 2 (July 7, 1999): 259–67. http://dx.doi.org/10.1007/s002270050544.

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19

Connolly, Rod M., Daniel Gorman, and Michaela A. Guest. "Movement of carbon among estuarine habitats and its assimilation by invertebrates." Oecologia 144, no. 4 (July 7, 2005): 684–91. http://dx.doi.org/10.1007/s00442-005-0167-4.

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20

Morgan, Steven G. "Predation by planktonic and benthic invertebrates on larvae of estuarine crabs." Journal of Experimental Marine Biology and Ecology 163, no. 1 (November 1992): 91–110. http://dx.doi.org/10.1016/0022-0981(92)90149-5.

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21

Mackay, C. F., and D. P. Cyrus. "Is freshwater quality adequately defined by physico-chemical components? Results from two drought-affected estuaries on the east coast of South Africa." Marine and Freshwater Research 52, no. 3 (2001): 267. http://dx.doi.org/10.1071/mf98063.

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From 1992 to 1994 the physico-chemical conditions of two systems on the east coast of southern Africa shifted from estuarine to freshwater as a result of mouth closure during the prevailing drought. Although there was gradual colonization by freshwater benthic invertebrates, both systems were dominated by estuarine benthic infauna. The upper reaches of the Siyaya Estuary were entirely characterized by freshwater taxa (95%) by 1994, whereas Nhlabane Estuary showed a smaller increase in the number of these fauna. Non-metric multidimensional scaling plotted benthic populations as separate groups each year. These groups were not the result of a gradual shift in benthic fauna from an estuarine towards a freshwater bias. Rather, the upper estuarine reaches were dominated by taxa characteristic of freshwater environments, despite similar water quality conditions along all reaches. Three quarters of the zoobenthic communities (expressed as density m–2) were still estuarine in nature. The two populations were comparable to those occurring in nearby freshwater coastal lakes, which have been subject to marine influence in geological history. It was concluded that assessment of the biological component in addition to the physico-chemical properties should be considered when defining water quality in such systems.

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22

Smoak, Copley, and Jeffrey Schmid. "Feeding Habits of the Non-Native Mayan Cichlid, Mayaheros urophthalmus, in Estuarine Tributaries of Southwest Florida." Gulf and Caribbean Research 32 (2021): 57–66. http://dx.doi.org/10.18785/gcr.3201.08.

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Foraging habits of the non—native Mayan Cichlid (Mayaheros urophthalmus) were investigated in the tidal tributaries to the Estero Bay and Wiggins Pass estuaries in southwest Florida (USA) during 2011—2013. Dietary analysis was conducted by identifying contents in the digestive tracts of 747 fish and volumetrically measuring the food items. Detritus was the predominant food item by frequency (97–100%), volume (34–48%), and alimentary importance index (47–64%). Bivalves, gastropods, decapod and cirriped crustaceans, coleopterans, serpulid polychaetes, and fish scales frequently (>50%) occurred in samples but volume and importance differed among tributaries. Results indicate that the Mayan Cichlid in southwest Florida tidal tributaries is an opportunistic predator of hard—shelled invertebrates. Although there was considerable overlap in dietary composition, percent volume of food items was significantly different among tributaries during dry seasons. In each tributary, detritus was consumed in greater percentage during the dry season and benthic invertebrates were consumed in greater percentages during the wet season. Consumption of detritus, algae, and plant material may be incidental to predation on benthic invertebrates but more information is needed on digestion and assimilation of food items. Variability in diet among the tributaries in the current study and among other studies was presumably a function of habitat characteristics and the corresponding availability of prey types.

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23

Hodgson, Alan N. "Reproductive Seasonality of Southern African Inshore and Estuarine Invertebrates — a Biogeographic Review." African Zoology 45, no. 1 (April 2010): 1–17. http://dx.doi.org/10.3377/004.045.0114.

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Bik, Holly M. "Unravelling post-glacial colonization through molecular techniques: new insight from estuarine invertebrates." Journal of Biogeography 36, no. 1 (January 2009): 16–17. http://dx.doi.org/10.1111/j.1365-2699.2008.02037.x.

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Hodgson, Alan N. "Reproductive seasonality of southern African inshore and estuarine invertebrates – a biogeographic review." African Zoology 45, no. 1 (April 2010): 1–17. http://dx.doi.org/10.1080/15627020.2010.11657249.

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Chesman, B. S., and W. J. Langston. "Intersex in the clam Scrobicularia plana : a sign of endocrine disruption in estuaries?" Biology Letters 2, no. 3 (April 25, 2006): 420–22. http://dx.doi.org/10.1098/rsbl.2006.0482.

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The phenomenon of endocrine disruption is currently a source of growing concern. Feminization of male fish in UK rivers has been shown to occur extensively and has been linked with exposure to endocrine-disrupting compounds present in the environment. Much less is known of the extent and scale of endocrine disruption in estuarine and marine ecosystems, particularly in invertebrates. We present evidence that intersex, in the form of ovotestis, is occurring in the common estuarine bivalve Scrobicularia plana , which is considered to be inherently gonochoristic. We report varying degrees in the severity of ovotestis in male S. plana , and have adopted and developed a grading method to assess the extent of this intersex condition. These findings indicate that S. plana offers potential for widespread screening and investigation of endocrine disruption, helping to focus remediatory strategy.

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Grigorovich, Igor A., Hugh J. MacIsaac, Nikolai V. Shadrin, and Edward L. Mills. "Patterns and mechanisms of aquatic invertebrate introductions in the Ponto-Caspian region." Canadian Journal of Fisheries and Aquatic Sciences 59, no. 7 (July 1, 2002): 1189–208. http://dx.doi.org/10.1139/f02-088.

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The Black, Azov, and Caspian sea drainages (i.e., Ponto-Caspian region) have an extensive and long history of species introductions. Here we review patterns and mechanisms of introductions of aquatic invertebrate species into these ecosystems. Since the late 1800s, 136 free-living and 27 parasitic invertebrate species have been introduced outside their native ranges and have established reproducing populations in the Ponto-Caspian region. The bulk of these introductions are represented by crustaceans (53%), flatworms (15%), and molluscs (13%). Most of the introduced species are native to other areas within the Ponto-Caspian region (37%), with other sizable contributions from the AtlanticMediterranean (15%) and boreal EuropeanSiberian (14%) geographic regions. Mechanisms of introductions were dominated by deliberate releases (29%) and shipping activities (22%), with the former occurring principally in freshwater habitats and the latter in marine and estuarine ones. Other introductions resulted from unintentional release (21%) and hydrotechnical development (14%), notably the construction of reservoirs and canals. Global and regional trade, particularly that mediated by commercial ships, provides dispersal opportunities for nonindigenous invertebrates to and within the Ponto-Caspian region, rapidly changing the composition of its endemic fauna.

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Blewett, Tamzin A., and Erin M. Leonard. "Mechanisms of nickel toxicity to fish and invertebrates in marine and estuarine waters." Environmental Pollution 223 (April 2017): 311–22. http://dx.doi.org/10.1016/j.envpol.2017.01.028.

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Williams, D. D., and N. E. Williams. "Seasonal Variation, Export Dynamics and Consumption of Freshwater Invertebrates in an Estuarine Environment." Estuarine, Coastal and Shelf Science 46, no. 3 (March 1998): 393–410. http://dx.doi.org/10.1006/ecss.1997.0280.

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30

Lewis, Lesley J., John Davenport, and Thomas C. Kelly. "Responses of benthic invertebrates and their avian predators to the experimental removal of macroalgal mats." Journal of the Marine Biological Association of the United Kingdom 83, no. 1 (January 14, 2003): 31–36. http://dx.doi.org/10.1017/s0025315403006763h.

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A field experiment investigating the effects of algal removal on benthic invertebrates and estuarine birds was carried out during September and October 2001. A randomized block experimental design was employed and three treatments were used: sites with algal cover maintained, when necessary by the addition of algae, sites with algal cover removed and control sites that were not manipulated in any way. Total invertebrate numbers increased during the experiment, but species varied in their response to the different treatments. Although Hydrobia ulvae showed the greatest increase in cleared sites after two months, there was no significant difference between treatments. Corophium volutator showed significant colonization of cleared sites during the experimental period, and numbers of Phyllodocemaculata also increased in the cleared sites. Results showed that while more sedentary benthic infauna are less capable of adjusting to the affects of algal clearance, more mobile epifauna and polychaetes show an ability to disperse to cleared sites in a relatively short period of time. Wading birds, however, did not enter the study site in any abundance during the experiment. Black-headed gulls (Larus ridibundus) were significantly more abundant in cleared sites than in algal cover-maintained or control sites when foraging.

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Siciliano, Alfonso, David R. Schiel, and Mads S. Thomsen. "Effects of local anthropogenic stressors on a habitat cascade in an estuarine seagrass system." Marine and Freshwater Research 70, no. 8 (2019): 1129. http://dx.doi.org/10.1071/mf18414.

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Recent research has shown that co-occurring primary and secondary habitat-forming species typically support higher biodiversity than do monocultures of the primary habitat-former alone. However, these ‘habitat cascades’ may not be universal and it is important to know whether, when and where positive effects on biodiversity from secondary habitat-forming species change to negative effects. Here, we tested how anthropogenic stressors (fertilisation and sedimentation) and unattached secondary habitat-forming Ulva seaweeds affected the primary habitat-forming seagrass, Zostera muelleri, and its associated invertebrates in the Avon–Heathcote Estuary, New Zealand. We experimentally stressed Zostera by adding different fertilisation and sediment levels. Fertilisation had little impact, whereas even low sedimentation levels had strong negative effects on Zostera and its associated fauna. In a second experiment, sediments and Ulva were added to seagrass beds and unvegetated mudflats to test whether sediment stress modifies habitat cascades. We found again strong negative effects of sediments on Zostera, irrespective of spatio-temporal conditions, and that negative effects of sediments on invertebrates were enhanced in the presence of the secondary habitat former. These results highlighted that anthropogenic stressors can destabilise habitat cascades; processes that may be of particular importance in estuaries that are characterised by low biodiversity and stressful environmental conditions.

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Rainbow, P. S., B. D. Smith, and M. C. Casado-Martinez. "Biodynamic modelling of the bioaccumulation of arsenic by the polychaete Nereis diversicolor." Environmental Chemistry 8, no. 1 (2011): 1. http://dx.doi.org/10.1071/en10089.

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Environmental context Models that explain the uptake and bioaccumulation of an element in an aquatic ecosystem are valuable for predicting its potential ecotoxicity in coastal areas. Arsenic is a toxic element that is strongly adsorbed to sediments, offering a potential risk to deposit-feeding invertebrates, and ultimately to consumers higher up coastal food chains. This study uses biodynamic modelling to predict the uptake and accumulation of arsenic from water and sediment in a deposit-feeding polychaete worm that is a major source of food to fish and wading birds in estuaries. Abstract Arsenic (AsV) uptake and bioaccumulation from water and ingested sediment by the deposit-feeding polychaete Nereis diversicolor has been investigated using biodynamic modelling. Worms accumulated As from solution linearly at dissolved concentrations from 2 to 20 µg L–1 (uptake rate constant 0.057 l g–1 day–1 at 10°C, 16-psu salinity), and the As assimilation efficiency from ingested sediment was 28.9%. Efflux rate constants of As taken up from water and ingested sediment were 0.0488 and 0.0464 day–1 and did not differ significantly. Sediment As concentrations, ranging from very high to low, were measured at eight estuarine sites, and the model predicted accumulated As concentrations in resident N. diversicolor. Comparisons of predicted against independently measured As concentrations in locally collected worms showed that the model generally performed well, highlighting the potential of biodynamic modelling in predicting the uptake and therefore ecotoxicity of As in estuarine sediments.

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Dubé, Monique G., Joseph M. Culp, Kevin J. Cash, Nancy E. Glozier, Deborah L. MacLatchy, Cheryl L. Podemski, and Richard B. Lowell. "Artificial Streams for Environmental Effects Monitoring (EEM): Development and Application in Canada over the Past Decade." Water Quality Research Journal 37, no. 1 (February 1, 2002): 155–80. http://dx.doi.org/10.2166/wqrj.2002.010.

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Abstract Development of artificial stream systems has been an on-going research effort in Canada over the past decade. At the National Water Research Institute (NWRI) of Environment Canada, artificial stream systems have been developed to assess the effects of point source effluents on aquatic biota. Initial applications (1990–1994) focused on assessing the effects of pulp mill effluents on benthic invertebrate and algae communities in large western Canadian rivers. Artificial streams were then used to assess the effects of pulp mill effluents on fish in marine and estuarine environments in eastern Canada (1997–1999). Most recently (2000–2001) artificial stream systems have been developed as tools to evaluate the effects of mining effluents on fish and benthic invertebrates. In addition, multi-trophic level (algae + benthic invertebrate + fish) applications have been developed for cumulative effects bioassessment. Based upon this culmination of research and development, artificial stream systems have been incorporated into the federally legislated Environmental Effects Monitoring (EEM) program as an alternative to field surveys for assessment of pulp and paper and mining pollution. The Canadian experience in development of artificial stream systems should serve as a model to demonstrate how research tools can be incorporated into federally legislated monitoring programs.

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BECK, MICHAEL W., KENNETH L. HECK, KENNETH W. ABLE, DANIEL L. CHILDERS, DAVID B. EGGLESTON, BRONWYN M. GILLANDERS, BENJAMIN HALPERN, et al. "The Identification, Conservation, and Management of Estuarine and Marine Nurseries for Fish and Invertebrates." BioScience 51, no. 8 (2001): 633. http://dx.doi.org/10.1641/0006-3568(2001)051[0633:ticamo]2.0.co;2.

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Guest, MA, RM Connolly, and NR Loneragan. "Carbon movement and assimilation by invertebrates in estuarine habitats at a scale of metres." Marine Ecology Progress Series 278 (2004): 27–34. http://dx.doi.org/10.3354/meps278027.

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Souza, M. M., and A. Bianchini. "16.7. Gill ion transporters and cell volume regulation: Effects of copper in estuarine invertebrates." Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology 148 (August 2007): S68. http://dx.doi.org/10.1016/j.cbpa.2007.06.173.

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Hinchey, Elizabeth K., Linda C. Schaffner, Cara C. Hoar, Bruce W. Vogt, and Lauren P. Batte. "Responses of Estuarine Benthic Invertebrates to Sediment Burial: The Importance of Mobility and Adaptation." Hydrobiologia 556, no. 1 (February 2006): 85–98. http://dx.doi.org/10.1007/s10750-005-1029-0.

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Raffaelli, D., and H. Milne. "An experimental investigation of the effects of shorebird and flatfish predation on estuarine invertebrates." Estuarine, Coastal and Shelf Science 24, no. 1 (January 1987): 1–13. http://dx.doi.org/10.1016/0272-7714(87)90002-3.

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Guilleux, Camille, Zhongzhi Chen, Peter G. C. Campbell, and Claude Fortin. "Dissolution of Silver Nanoparticles in Stratified Estuarine Mesocosms and Silver Accumulation in a Simple Planktonic Freshwater Trophic Chain." Environments 9, no. 2 (January 28, 2022): 20. http://dx.doi.org/10.3390/environments9020020.

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The increasing presence of nanomaterials in consumer products has led the scientific community to study the environmental fate of these contaminants of emerging concern. Silver nanoparticles, used mainly for their antibacterial properties, are among the most common nanomaterials. Understanding their transformations and interactions with living organisms, especially under environmentally relevant conditions that can modify metal bioavailability, is a crucial step in the study of their impacts on aquatic ecosystems. In the present study, citrate-coated silver nanoparticles (20 nm; 10 µg/L) were added to the surface freshwater layer of mesocosms simulating a stratified estuary. The investigation by dialysis of the nanoparticle dissolution showed that a large amount of total silver was found in the freshwater layer (and a very low amount in the seawater layer) and that 5–15% was in the form of dissolved silver. These results indicate that the halocline, separating fresh water from seawater, acted as a strong density barrier limiting the sedimentation of the nanoparticles. A simple trophic chain, composed of the freshwater alga Chlamydomonas reinhardtii and the invertebrate Daphnia magna, was used to determine silver bioavailability. This study suggests that citrate-coated silver nanoparticles do not significantly contribute to Ag accumulation by algae but may do so for invertebrates.

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Hughes, R. G. "Dispersal by Benthic Invertebrates: The in Situ Swimming Behaviour of the Amphipod Corophium Volutator." Journal of the Marine Biological Association of the United Kingdom 68, no. 4 (November 1988): 565–79. http://dx.doi.org/10.1017/s002531540002871x.

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Studies of the dispersal behaviour of marine and estuarine benthic invertebrates have concentrated on the majority of species where the individuals disperse as a planktonic larva. The view that seems to be prevalent, summarised by Crisp (1974, 1976), is that larvae are an adaptation to allow species to colonise transient habitats and for species with adults of limited mobility to colonise distant habitats. The spreading of the species over wide areas has the advantages of reducing competition and facilitating greater genetic diversity, leaving the species more adaptable to subsequent environmental changes. These advantages are greater with longer distances travelled, and are an explanation for larvae spending up to several weeks drifting in the plankton, despite the acknowledged high mortality rates associated with the pelagic existence.

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Berezina, Nadezhda A., Alexei V. Tiunov, Vasily A. Petukhov, and Yulia I. Gubelit. "Benthic Invertebrates Abundance and Trophic Links in the Coastal Zone during Cladophora Blooms." Diversity 14, no. 12 (December 1, 2022): 1053. http://dx.doi.org/10.3390/d14121053.

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The green macroalga Cladophora glomerata, a species typical of brackish water, predominates in most coastal areas of estuarine ecosystems. The present study aimed to determine the current ecological conditions in the Neva estuary (Baltic Sea) when subjected to eutrophication and the summer Cladophora bloom. Macroalgae bloom can result in temporary unfavorable conditions (oxygen depletion and pollution) for invertebrates during macroalgae decomposition, and its contribution to the autochthonous benthic food web remains unclear. We evaluated the Cladophora biomass and the abundance and composition of macro- and meiobenthic invertebrates and traced trophic links in the coastal area of the Neva estuary during the Cladophora bloom. Some species of grazing or omnivorous consumers (nematodes, gastropods, amphipods, insect larvae) reached high abundance in the Cladophora-dominated coastal community. The tracing of food sources in a food chain of the Cladophora-dominated coastal community (macrophytes-grazers-omnivores) were elucidated using dual δ13C and δ15N stable isotope analysis. The results showed that autochthonous organic sources derived from Cladophora at various stages might contribute notably (up to 89%) to the coastal food web, supporting the production of benthic consumers.

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Mézin, Laurent C., and Robert C. Hale. "EFFECT OF HUMIC ACIDS ON TOXICITY OF DDT AND CHLORPYRIFOS TO FRESHWATER AND ESTUARINE INVERTEBRATES." Environmental Toxicology and Chemistry 23, no. 3 (2004): 583. http://dx.doi.org/10.1897/02-431.

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Hillyer, Katie E., Eric Raes, Kristen Karsh, Bronwyn Holmes, Andrew Bissett, and David J. Beale. "Metabolomics as a tool for in situ study of chronic metal exposure in estuarine invertebrates." Environmental Pollution 292 (January 2022): 118408. http://dx.doi.org/10.1016/j.envpol.2021.118408.

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Ortega-Cisneros, Kelly, and Ursula M. Scharler. "Nutrient Dynamics of Estuarine Invertebrates Are Shaped by Feeding Guild Rather than Seasonal River Flow." PLOS ONE 10, no. 9 (September 9, 2015): e0137417. http://dx.doi.org/10.1371/journal.pone.0137417.

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Molina-Bolivar, Geomar, Iris Agustina Jimenez Pitre, and Marlon J. Bastidas-Barrannco. "Distribution of benthic macro invertebrates in the estuarine ecosystem the Ri�to, Riohacha - Colombian Guajira." Indian Journal of Science and Technology 11, no. 17 (May 1, 2018): 1–7. http://dx.doi.org/10.17485/ijst/2018/v11i17/122340.

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Lewis, Michael A., Darrin D. Dantin, Calvin C. Walker, Janis C. Kurtz, and Richard M. Greene. "Toxicity of clay flocculation of the toxic dinoflagellate, Karenia brevis, to estuarine invertebrates and fish." Harmful Algae 2, no. 4 (October 2003): 235–46. http://dx.doi.org/10.1016/s1568-9883(03)00041-6.

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Taupp, Thomas, Claudia Hellmann, René Gergs, Carola Winkelmann, and Markus A. Wetzel. "Life Under Exceptional Conditions—Isotopic Niches of Benthic Invertebrates in the Estuarine Maximum Turbidity Zone." Estuaries and Coasts 40, no. 2 (September 21, 2016): 502–12. http://dx.doi.org/10.1007/s12237-016-0163-4.

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Alves, J. A., W. J. Sutherland, and J. A. Gill. "Will improving wastewater treatment impact shorebirds? Effects of sewage discharges on estuarine invertebrates and birds." Animal Conservation 15, no. 1 (August 9, 2011): 44–52. http://dx.doi.org/10.1111/j.1469-1795.2011.00485.x.

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Lautenschlager, Agnes D., Ty G. Matthews, and Gerry P. Quinn. "Utilization of organic matter by invertebrates along an estuarine gradient in an intermittently open estuary." Estuarine, Coastal and Shelf Science 149 (August 2014): 232–43. http://dx.doi.org/10.1016/j.ecss.2014.08.020.

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Scharf, Frederick S., Jeffrey A. Buckel, and Francis Juanes. "Contrasting patterns of resource utilization between juvenile estuarine predators: the influence of relative prey size and foraging ability on the ontogeny of piscivory." Canadian Journal of Fisheries and Aquatic Sciences 66, no. 5 (May 2009): 790–801. http://dx.doi.org/10.1139/f09-030.

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In aquatic systems, ontogenetic patterns of resource utilization strongly influence growth and survival, particularly during early life stages. We compared prey resource use and evaluated potential factors affecting the timing of the shift to piscivorous feeding in two juvenile estuarine fish predators: striped bass ( Morone saxatilis ) and bluefish ( Pomatomus saltatrix ). In New York Bight estuaries, bluefish shift to piscivory earlier in ontogeny and consume larger relative prey fish sizes compared with striped bass. Predator gape allometries are similar and did not determine maximum prey sizes eaten. Experimental results revealed marked differences in foraging abilities between predators, with bluefish realizing much greater foraging efficiency compared with striped bass feeding on identical fish prey. Both predators demonstrated lower feeding efficiency and grew relatively poorly when feeding on invertebrates compared with fish prey. When held together under limited prey conditions, bluefish exploited a greater proportion of available prey at the expense of striped bass. Our findings highlight the importance of the availability of appropriately sized forage fishes to the ontogeny of piscivory and provide evidence that predator–prey size relationships and disparate foraging abilities can generate inter- and intra-specific variation in patterns of resource utilization and predator growth.

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