Edward Buskey

Edward Buskey
University of Texas at Austin | UT · Marine Science Institute

PhD Biological Oceanography, GSO, URI

About

149
Publications
34,620
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5,529
Citations
Citations since 2016
31 Research Items
2333 Citations
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20162017201820192020202120220100200300400
20162017201820192020202120220100200300400
20162017201820192020202120220100200300400

Publications

Publications (149)
Article
Characterizing the nature and effects of oil released into the marine environment is very challenging. It is generally recognized that “environmentally relevant” conditions for exposure involve a range of temporal and spatial conditions, a range of exposure pathways (e.g., dissolved, emulsions, sorbed onto particulates matter), and a multitude of o...
Article
Despite the advances in safety technology and the improved implementation of precautionary measures, crude oil pollution has been occurring in the oceans globally. The water accommodated fraction (WAF) of crude oil and chemical dispersant are hypothesized to cause sub-lethal adverse effects on marine protists that are pivotal consumers of primary p...
Article
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Early naturalists suggested that predation intensity increases toward the tropics, affecting fundamental ecological and evolutionary processes by latitude, but empirical support is still limited. Several studies have measured consumption rates across latitude at large scales, with variable results. Moreover, how predation affects prey community com...
Article
Early naturalists suggested that predation intensity increases toward the tropics, affecting fundamental ecological and evolutionary processes by latitude, but empirical support is still limited. Several studies have measured consumption rates across latitude at large scales, with variable results. Moreover, how predation affects prey community com...
Article
Early naturalists suggested that predation intensity increases toward the tropics, affecting fundamental ecological and evolutionary processes by latitude, but empirical support is still limited. Several studies have measured consumption rates across latitude at large scales, with variable results. Moreover, how predation affects prey community com...
Preprint
Full-text available
We present a case study of the potential impact on hurricane storm surge due to deepening the Corpus Christi Ship Channel through Aransas Pass in the region of Corpus Christi and Port Aransas, Texas. Our investigation is based on numerical mathematical models of the circulation of coastal water due to Hurricane Harvey and two synthetic hurricanes d...
Article
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Microzooplankton (<200 μm) are essential intermediates between primary production and organisms at the higher trophic levels. Their ecological functions could be substantially affected by crude oil pollution. A natural plankton community was exposed to 10 μL L⁻¹ of chemically dispersed crude oil (DOil) in outdoor mesocosms for 7 days, with control...
Article
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We present a study of the potential impact of deepening the Corpus Christi Ship Channel through Aransas Pass; in particular, we study the effect on the transport of red drum fish larvae due to the change in channel depth. The study was conducted by high resolution simulation of the circulation of the seawater entering and exiting the pass for the c...
Article
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The Deepwater Horizon oil spill of 2010 brought the ecology and health of the Gulf of Mexico to the forefront of the public's and scientific community's attention. Not only did we need a better understanding of how this oil spill impacted the Gulf of Mexico ecosystem, but we also needed to apply this knowledge to help assess impacts from perturbati...
Article
The association between phytoplankton blooms and oil spills is still controversial despite numerous studies. Surprisingly, to date, there have been no studies on the effect of bacterial communities (BCs) exposed to crude oil on phytoplankton growth, even though crude oil changes BCs, which can then affect phytoplankton growth and species compositio...
Article
Phytoplankton blooms have been occasionally observed to occur after oil spills, and changes in bacterial communities (BC) associated with phytoplankton are known to affect phytoplankton growth. In the present study, to examine the effects of BC exposed to crude oil on phytoplankton blooms, established free-living (FL) BC in Karenia brevis (Dinophyc...
Article
The Mission-Aransas Estuary is the wintering ground for the only sustained wild population of the endangered whooping crane (Grus americana), and blue crabs (Callinectes sapidus) are an important component of their diet as well as being a major food source for important sport fishes such as the red and black drum. Blue crabs also support a commerci...
Article
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Field data from the first several days after an oil spill is rare but crucial for our understanding of a spill’s impact on marine microbiota given their short generation times. Field data collected within days of the Texas City “Y” oil spill showed that exposure to crude oil can rapidly imbalance populations of marine microbiota, which leads to the...
Article
Full-text available
This study investigates the development of swimming abilities and its relationship with morphology, growth, and nourishment of reared Doryteuthis opalescens paralarvae from hatching to 60 days of age. Paralarvae (2.5–11 mm mantle length – ML) were videotaped, and their behavior quantified throughout development using computerized motion analysis. H...
Article
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After oil spills and dispersant applications the formation of red tides or harmful algal blooms (HABs) has been observed, which can cause additional negative impacts in areas affected by oil spills. However, the link between oil spills and HABs is still unknown. Here, we present experimental evidence that demonstrates a connection between oil spill...
Article
Full-text available
Ecosystem function measurements can enhance our understanding of nitrogen (N) delivery in coastal catchments across river and estuary ecosystems. Here, we contrast patterns of N cycling and export in two rivers, one heavily influenced by wastewater treatment plants (WWTP), in a coastal catchment of south Texas. We measured N export from both rivers...
Article
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Rapid conduction in myelinated nerves keeps distant parts of large organisms in timely communication. It is thus surprising to find myelination in some very small organisms. Calanoid copepods, while sharing similar body plans, are evenly divided between myelinate and amyelinate taxa. In seeking the selective advantage of myelin in these small anima...
Chapter
Copepods are a key link in marine food webs and are consumed by a wide range of predators. As a result, copepods have evolved numerous adaptations for avoiding predation. The escape response of calanoid copepods is arguably one of the most important adaptations as it is well-developed in most species and developmental stages and functions against a...
Article
Full-text available
Phytoplankton sinking is an important property that can determine community composition in the photic zone and material loss to the deep ocean. To date, studies of diatom suspension have relied on bulk measurements with assumptions that bulk rates adequately capture the essential characteristics of diatom sinking. However, recent work has illustrat...
Article
Full-text available
The Deepwater Horizon (DWH) oil spill was the largest accidental release of crude oil into the sea in history, and represents the most extensive use of chemical dispersants to treat an oil spill. Following the spill, extensive studies were conducted to determine the potential acute and sublethal toxic effects of crude oil and dispersants on a range...
Article
Full-text available
Toxic effects of petroleum to marine zooplankton have been generally investigated using dissolved petroleum hydrocarbons and in the absence of sunlight. In this study, we determined the influence of natural ultraviolet B (UVB) radiation on the lethal and sublethal toxicity of dispersed crude oil to naupliar stages of the planktonic copepods Acartia...
Article
Phytoplankton sinking is an important property that can determine community composition in the photic zone and material loss to the deep ocean. To date, studies of diatom suspension have relied on bulk measurements with assumptions that bulk rates adequately capture the essential characteristics of diatom sinking. However, recent work has illustrat...
Article
Phytoplankton sinking is an important property that can determine community composition in the photic zone and material loss to the deep ocean. To date, studies of diatom suspension have relied on bulk measurements with assumptions that bulk rates adequately capture the essential characteristics of diatom sinking. However, recent work has illustrat...
Article
The National Estuarine Research Reserve System (NERRS) consists of 28 coastal reserves located across the United States. A system-wide monitoring program was established in 1995 to develop quantitative measurements of short-term variability and long-term changes in abiotic and biotic properties of estuarine ecosystems for the purpose of informing e...
Article
Full-text available
We investigated and quantified defecation rates of crude oil by 3 species of marine planktonic copepods (Temora turbinata, Acartia tonsa, and Parvocalanus crassirostris) and a natural copepod assemblage after exposure to mechanically or chemically dispersed crude oil. Between 88 and 100% of the analyzed fecal pellets from three species of copepods...
Article
We describe an automated, volumetric PIV and tracking method that measures time-resolved, three-dimensional zooplankton trajectories and surrounding volumetric fluid velocity fields simultaneously and non-intrusively. The method is demonstrated for groups of copepods flowing past a wall-mounted cylinder. We show that copepods execute escape respons...
Article
Full-text available
River–estuary continuums represent a dynamic range of environmental conditions in aquatic ecosystems, providing an ideal gradient for understanding changes in nitrogen (N) cycling. We measured rates of ammonium (NH4 +) cycling, including uptake and regeneration, in the water column of upper river, lower river, and estuary sites. This 1-year study e...
Article
Full-text available
Ciliates can form an important link between the microbial loop and higher trophic levels primarily through consumption by copepods. This high predation pressure has resulted in a number of ciliate species developing rapid escape swimming behaviour. Several species of these escaping ciliates also possess a long contractile tail for which the functio...
Article
Full-text available
Although planktonic protozoans are likely to interact with dispersed crude oil after a spill, protozoan-mediated processes affecting crude oil pollution in the sea are still not well known. Here, we present the first evidence of ingestion and defecation of physically or chemically dispersed crude oil droplets (1-86 μm in diameter) by heterotrophic...
Article
Freshwater inflows are crucial for the function of estuaries but can become limited in the Mission-Aransas Estuary, Texas, USA, due to drought and human use. Several studies have linked blue crab Callinectes sapidus populations to freshwater inflows, suggesting that inflows may be critical for an early life-history event such as megalopae recruitme...
Article
Full-text available
In the last decade, the northern Arabian Sea has witnessed a radical shift in the composition of winter phytoplankton blooms, which previously comprised mainly of diatoms, the unicellular, siliceous photosynthetic organisms favoured by nutrient-enriched waters from convective mixing. These trophically important diatom blooms have been replaced by w...
Article
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Our current understanding of zooplankton interactions with surrounding fluid is limited, partially because traditional methods of particle image velocimetry (PIV) become impractical at scales less than a few millimeters and microscope-based systems restrict motions and can incur “wall effects”. We present a new approach to small-scale PIV imaging a...
Article
Full-text available
Planktonic copepods play a key function in marine ecosystems, however, little is known about the effects of dispersants and chemically dispersed crude oil on these important planktonic organisms. We examined the potential for the copepods Acartia tonsa, Temora turbinata and Parvocalanus crassirostris to ingest crude oil droplets and determined the...
Article
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Syngnathid fish (seahorses, pipefish and sea dragons) are slow swimmers yet capture evasive prey (copepods) using a technique known as the 'pivot' feeding, which involves rapid movement to overcome prey escape capabilities. However, this feeding mode functions only at short range and requires approaching very closely to hydrodynamically sensitive p...
Article
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Gelatinous zooplankton play an important role in marine food webs both as major consumers of metazooplankton and as prey of apex predators (e.g., tuna, sunfish, sea turtles). However, little is known about the effects of crude oil spills on these important components of planktonic communities. We determined the effects of Louisiana light sweet crud...
Article
We quantified sediment-water interface and water column nitrogen (N) transformation rates seasonally over the course of a year that incorporated a major storm event and a period of prolonged riverine base flow in Copano Bay, Texas, a shallow, productive estuary in the western Gulf of Mexico. We calculated daily rates of gross primary production (GP...
Article
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We conducted ship-, shore- and laboratory-based crude oil exposure experiments to investigate (1) the effects of crude oil (Louisiana light sweet oil) on survival and bioaccumulation of polycyclic aromatic hydrocarbons (PAHs) in mesozooplankton communities, (2) the lethal effects of dispersant (Corexit 9500A) and dispersant-treated oil on mesozoopl...
Article
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Despite high predation pressure, planktonic copepods remain one of the most abundant groups on the planet. Their escape response provides one of most effective mechanisms to maximize evolutionary fitness. Owing to their small size (100 µm) compared with their predators (>1 mm), increasing viscosity is believed to have detrimental effects on copepod...
Article
Full-text available
Subject to high predation risk, all developmental stages of copepods depend on evasive behaviors for survival in pelagic environments. Swim and escape behaviors were investigated in copepods from early nauplius to adult using 3D high-speed micro-cinematography. Parvocalanus crassirostris and Eurytemora affinis are two common estuarine species with...
Article
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The marine environment associated with the air-water interface (neuston) provides an important food source to pelagic organisms where subsurface prey is limited. However, studies on predator-prey interactions within this environment are lacking. Copepods are known to produce strong escape jumps in response to predators, but must contend with a low-...
Article
Full-text available
Copepods are important grazers on microplankton in marine food webs and are, in turn, preyed upon by a wide range of predators with diverse feeding adaptations. Although copepods have evolved numerous adaptations to help them avoid predation, their escape behavior sets them apart from many other planktonic organisms. Mechanoreception is widely used...
Article
Our REU site is a ten-week summer program that is currently in its fourth year and has served 37 undergraduate students in that time. The range of environments present in south Texas, including barrier islands, estuaries and hypersaline lagoons, and the inherent climatic variability of the region make it an excellent natural laboratory for studying...
Article
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Escape success of copepod nauplii (N5–6) of the copepod Acartia tonsa was significantly lower than that of copepodites (C1–2) when exposed to a coral reef fish Acanthemblemaria paula, but no difference was observed when exposed to the seahorse Hippocampus zosterae. The addition of low level turbulence inhibited feeding by the seahorse but did not a...
Article
Small planktonic organisms such as copepods are often the first foods for many species of fish and thus, subject to high predation rates. They have developed strong escape responses to attacks from visual predators and this behavior is found even in the youngest development stage. Because of their small size (approx. 100 mum), these juvenile copepo...
Article
Full-text available
The swimming behavior of the ciliate Strobilidium sp. was recorded using cinematographic techniques. A density of 20 ciliates/ml was used under 4 experimental food conditions: 121, 625, 3025, and 15,125 cells/ml of the dinoflagellate Gymnodinium sp. In total, 100 trajectories per experiment were recorded and analyzed. We classified this ciliate's s...
Article
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Behavioral interactions between the calanoid copepod Temora turbinata and the ciliates Strobilidium sp. and an undetermined species of spinning ciliate were video-documented and analyzed. Videotaped Temoraciliate encounters were image-analyzed to calculate ciliate swimming trajectories, T. turbinata attack kinematics, and reaction distances to the...