Invasive copepods in the Lower Columbia River Estuary: Seasonal abundance, co-occurrence and potential competition with native copepods

Bollens, Stephen M.; Breckenridge, Joanne K.; Cordell, Jeffery R.; Rollwagen‐Bollens, Gretchen; Kalata, Olga

doi:10.3391/ai.2012.7.1.011

Cited by 40 publications

(43 citation statements)

References 53 publications

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“…In addition, the use of molecular analyses integrate the taxonomical approaches in identifying unreported alien species and may unveil the genetic relationships Shang et al (2008); Razouls et al (2005Razouls et al ( -2015-for Pseudodiaptomus forbesi: Bollens et al (2012); Shang et al (2008); Orsi & Walter (1991) -for Pseudodiaptomus marinus: Uye & Kasahara (1982; Rajakaruna et al (2012); Razouls et al (2005Razouls et al ( -2015; Orsi & Walter (1991) (Zenetos et al, 2010).…”

Section: Discussionmentioning

confidence: 99%

Spreading factors of a globally invading coastal copepod

Sabia

Zagami²,

Mazzocchi

et al. 2015

Medit. Mar. Sci.

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The Mediterranean Sea is one of the most affected areas by alien invasions, which are continuously increasing due to the intense human activities and environmental changes that favor the introduction of species previously unable to colonize the basin. This is the case of the copepods of the genus Pseudodiaptomus, first described in the Indian Ocean and considered as one of the most resistant to unfavorable conditions but never recorded in the Mediterranean until 2011 though present in adjacent seas. Pseudodiaptomus marinus, in particular, is common in shallow marine-brackish waters and is one of the species often found in ballast waters and in aquaculture plants. Native of Japan, it has started spreading since 1950s, and its populations have established in several harbors, eutrophic inlets, and lagoons along the coasts of the Pacific and Indian Oceans. In the last few years, P. marinus has been increasingly reported in European Seas (Mediterranean Sea and North Sea).In this article, we review the invasion history of this species with a special emphasis on its records in the Mediterranean Sea, and its occurrence and establishment in Sicilian waters. We also compare the biological traits and population dynamics of P. marinus with those of other representative of the genus and discuss about the possible mechanisms of introduction in new environments. The aim of this work is to understand the reasons of successful invasion of P. marinus and the environmental and biological factors that may lead to its further biogeographic expansion.

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Section: Discussionmentioning

confidence: 99%

Spreading factors of a globally invading coastal copepod

Sabia

Zagami²,

Mazzocchi

et al. 2015

Medit. Mar. Sci.

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“…Shaded counts from FlowCAM, unshaded counts from microscopy. Blank fields indicate taxa not present or not counted ish lower estuary up into the Snake River tributary (Cordell et al 2008), and high abundances of P. forbesi have been recorded at salinities from 0−12 (Bollens et al 2012). In its native range in the Yangtze River and estuary in China, P. forbesi is found in salinities up to at least 8 (Orsi & Walter 1991).…”

Section: Abiotic Control: Salinity Effectsmentioning

confidence: 99%

“…The effects of salinity on the mortality or reproduction of this species have not previously been investigated in any system, and the only relevant information on salinity effects is on distribution (Orsi & Walter 1991, Cordell et al 2008, Bollens et al 2012). …”

Section: Abiotic Control: Salinity Effectsmentioning

confidence: 99%

“…In most cases, competition between zooplankton species is inferred from variation in body size, seasonal occurrence, or spatial distributions with and without a potential competitor (Tranter & Abraham 1971, Vanni 1986, Urabe 1990. Often, competition is inferred from spatial overlap of species and assumptions that they have overlapping diets (Rothhaupt 1990, Lakkis 1994, Bollens et al 2012 Pseudodiaptomus forbesi 1 19.3 ± 0.7 17.6 ± 3.3 3.3 ± 2.6 10.6 ± 3.8 16.2 ± 3.5 2 12.1 ± 2.2 15.2 ± 8.0 1.7 ± 2.7 7.2 ± 2.6 3.3 ± 0.7 5.8 ± 1.9 3 26.6 ± 2.8 20.0 ± 6.6 Neg 10.3 ± 2.7 0.8 ± 0.7 11.6 ± 3.4 4 12.5 ± 4.4 8.3 ± 1.6 5.7 ± 2.6 4.9 ± 2.9 9.6 ± 2.9 5 15.5 ± 5.9 9.6 ± 9.0 9.8 ± 2.9 11.7 ± 3.1 6 12.4 ± 4.1 10.2 ± 2.2 3.8 ± 2.2 12.2 ± 3.3…”

Section: Biotic Control: Food Availabilitymentioning

confidence: 99%

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Abiotic and biotic controls on the copepod Pseudodiaptomus forbesi in the upper San Francisco Estuary

Kayfetz¹,

Kimmerer²

2017

Mar. Ecol. Prog. Ser.

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Salinity is a key control on species distribution in estuaries, but interspecific interactions can shift distributions of estuarine species away from physiologically optimal salinities. The distribution of the introduced calanoid copepod Pseudodiaptomus forbesi in the upper San Francisco Estuary (SFE) shifted from brackish to fresh water in 1993 following the introductions of 2 brackish-water copepods, the small but numerically dominant Limnoithona tetraspina (Cyclopoida) and the predatory Acartiella sinensis (Calanoida). The nearly simultaneous timing of these introductions complicated interpretation of the temporal change in distribution of P. forbesi. Although P. forbesi is now uncommon at salinity >~2, which might be interpreted as the result of salinity stress, short-term experiments showed high survival of adults up to salinity ~8 and of nauplii to salinity of at least 14, and reproduction was highest at salinity 5. Feeding experiments showed some overlap in diets of P. forbesi and L. tetraspina, but P. forbesi consumed a broader range of prey than L. tetraspina. Furthermore, feeding rates of the L. tetraspina population appeared insufficient to reduce prey availability to P. forbesi. Previous reports of high consumption of nauplii by A. sinensis and the clam Potamocorbula amurensis suggest that these interspecific interactions are important in constraining the distribution of P. forbesi in the upper SFE. Thus, we interpret the temporal shift in distribution of P. forbesi as due mainly to the introduction of the predatory copepod, whose high abundance may have been facilitated by the availability of a common alternative prey, L. tetraspina.

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“…Invasive zooplankton . Another environmental stressor acting in the CRE is the introduction and establishment of invasive zooplankton species (Bollens et al ; Dexter et al , ), which have the potential to dramatically alter the overall planktonic food web by grazing upon phytoplankton taxa that may enhance HAB frequency (Bowen et al ), as well as by displacing native zooplankton taxa that support critical fish and invertebrate populations in the CRE (e.g., salmon; Bollens et al ; Adams et al ).…”

Section: Introductionmentioning

confidence: 99%

Engaging High School Students as Collaborators in Ecological Investigation of the Columbia River Estuary: Lessons from a Transdisciplinary University–High School Partnership

Rollwagen‐Bollens

Nelson

Bollens

et al. 2019

Limnology & Oceanogr Bull

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The Columbia River Estuary Science Education and Outreach (CRESCENDO) project was a university–high school partnership between Washington State University (WSU) researchers and science teachers and students from five high schools located in southwest Washington, adjacent to the Columbia River Estuary (CRE). The CRESCENDO project explicitly integrated ecological research with science education research that assessed how high school students' participation in university‐sponsored research impacted their knowledge of CRE ecology and their attitudes about science and stewardship. From October 2016 to September 2018, CRESCENDO teachers and students measured water quality and conducted plankton tows from a dock near each of their schools every month. Each May, the CRESCENDO participants (WSU scientists, science educators, high school teachers, and students from each school) convened a Research Symposium to interpret the results. Here, we describe the project design and outcomes to illustrate the lessons learned from CRESCENDO and provide recommendations for developing future university–high school partnerships focused on locally relevant environmental problems.

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Invasive copepods in the Lower Columbia River Estuary: Seasonal abundance, co-occurrence and potential competition with native copepods

Cited by 40 publications

References 53 publications

Spreading factors of a globally invading coastal copepod

Spreading factors of a globally invading coastal copepod

Abiotic and biotic controls on the copepod Pseudodiaptomus forbesi in the upper San Francisco Estuary

Engaging High School Students as Collaborators in Ecological Investigation of the Columbia River Estuary: Lessons from a Transdisciplinary University–High School Partnership

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