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1

Koski, Marja, Rasmus Swalethorp, Sanne Kjellerup, and Torkel Gissel Nielsen. "The mystery of Microsetella: combination of sac- and broadcast-spawning in an Arctic fjord." Journal of Plankton Research 36, no. 1 (2014): 259–64. https://doi.org/10.1093/plankt/fbt117.

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Different life-history stages of the pelagic harpacticoid <em>Microsetella norvegica</em> were sampled in a Greenland fjord, to investigate how this slowly growing species can achieve high abundances at low temperatures. We expected low but continuous reproduction coupled with a low mortality, but observed the opposite: a short reproductive period with high estimated weight-specific egg production and egg mortality, and indication of a life-history strategy combining the advantages of egg carrying with egg production rates independent of temperature.
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2

Mironova, Ekaterina, and Anna Pasternak. "Female gonad morphology of small copepods Oithona similis and Microsetella norvegica." Polar Biology 40, no. 3 (2016): 685–96. http://dx.doi.org/10.1007/s00300-016-1993-z.

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3

Barth-Jensen, Coralie, Marja Koski, Øystein Varpe, et al. "Temperature-dependent egg production and egg hatching rates of small egg-carrying and broadcast-spawning copepods Oithona similis, Microsetella norvegica and Microcalanus pusillus." Journal of Plankton Research 42, no. 5 (2020): 564–80. http://dx.doi.org/10.1093/plankt/fbaa039.

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Abstract Reproductive rates of copepods are temperature-dependent, but poorly known for small copepods at low temperatures, hindering the predictions of population dynamics and secondary production in high-latitude ecosystems. We investigated egg hatching rates, hatching success and egg production of the small copepods Oithona similis and Microsetella norvegica (sac spawners) and Microcalanus pusillus (broadcast spawner) between March and August. Incubations were performed at ecologically relevant temperatures between 1.3 and 13.2°C, and egg production rates were calculated. All egg hatching r
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4

Fuentes-Reinés, Juan M., Eduardo Suárez-Morales, Pedro Eslava-Eljaiek, Daniel Serna-Macias, and Deivis Suárez-Rivero. "New records of Harpacticoids (Crustacea, Copepoda) from a coastal system of northern Colombia." Revista Peruana de Biología 29, no. 4 (2022): e23820. http://dx.doi.org/10.15381/rpb.v29i4.23820.

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Three species of harpacticoids are herein recorded from the zooplankton of Rodadero beach, Santa Marta, Magdalena, Colombia. Samples were collected from the littoral zone, mainly at inshore areas covered by mangrove vegetation and in an adjacent oyster bank. One of them, Laophonte cornuta Philippi, 1840 is new to the Colombian harpacticoid fauna, the other two species: Distioculus minor (Scott T., 1894) and Microsetella norvegica (Boeck, 1865) are new reports to the Magdalena department. This is the first illustrated record confirming their presence in Colombia and Magdalena, northern Colombia
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5

Demchuk, A., M. Ivanov, T. Ivanova, N. Polyakova, E. Mas-Martí, and D. Lajus. "Feeding patterns in seagrass beds of three-spined stickleback Gasterosteus aculeatus juveniles at different growth stages." Journal of the Marine Biological Association of the United Kingdom 95, no. 8 (2015): 1635–43. http://dx.doi.org/10.1017/s0025315415000569.

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Today, three-spined stickleback Gasterosteus aculeatus are the most abundant fish in the White Sea and are close to their historical maximum. Based on observations from 2011–2013, this study reports quantitative and qualitative characteristics of juvenile stickleback diet during periods of active feeding in coastal Zostera seagrass beds. The following planktonic taxa dominated stomach contents: copepods Temora longicornis and Microsetella norvegica, ciliophora Helicostomella subulata. Benthic organisms such as Oligochaetae and Orthocladiinae also played an important role, whereas the literatur
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6

Svensen, Camilla, Maria T. Antonsen, and Marit Reigstad. "Small copepods matter: population dynamics of Microsetella norvegica in a high-latitude coastal ecosystem." Journal of Plankton Research 40, no. 4 (2018): 446–57. http://dx.doi.org/10.1093/plankt/fby019.

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7

Koski, Marja, Eva F. Møller, Marie Maar, and Andre W. Visser. "The fate of discarded appendicularian houses: degradation by the copepod, Microsetella norvegica, and other agents." Journal of Plankton Research 29, no. 7 (2007): 641–54. http://dx.doi.org/10.1093/plankt/fbm046.

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8

M.S. Arya, A. Biju, and Dani Benchamin. "A preliminary checklist of Copepoda in the mangrove areas of Munroe Island, adjacent to Ashtamudi estuary, Kerala, India." Journal of Threatened Taxa 16, no. 5 (2024): 25261–64. http://dx.doi.org/10.11609/jott.8709.16.5.25261-25264.

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The present investigation was conducted to assess the species composition of Copepoda in Munroe Island from October 2020 to September 2022. As the information about the species composition of Copepoda is scarce in the mangrove habitats of the southern part of Kerala, their appraisal assumes greater significance. Copepod samples collected from the mangrove habitats of Munroe Island of Kerala (southern India) revealed 31 species belonging to 18 genera and 15 families. The order Calanoida was recognized as the most dominant taxa with 23 species, followed by Harpacticoida (five species) and Cyclop
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9

Uye, S. "Seasonal population dynamics and production of Microsetella norvegica, a widely distributed but little-studied marine planktonic harpacticoid copepod." Journal of Plankton Research 24, no. 2 (2002): 143–53. http://dx.doi.org/10.1093/plankt/24.2.143.

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10

Barth-Jensen, Coralie, Malin Daase, M. R. Ormańczyk, Øystein Varpe, Sławomir Kwaśniewski, and Camilla Svensen. "High abundances of small copepods early developmental stages and nauplii strengthen the perception of a non-dormant Arctic winter." Polar Biology 45, no. 4 (2022): 675–90. http://dx.doi.org/10.1007/s00300-022-03025-4.

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AbstractThe traditional view is that the Arctic polar night is a quiescent period for marine life, but recent reports of high levels of feeding and reproduction in both pelagic and benthic taxa have challenged this. We examined the zooplankton community present in Svalbard fjords, coastal waters, and the shelf break north of Svalbard, during the polar night. We focused on the population structure of abundant copepods (Calanus finmarchicus, Calanus glacialis, Metridia longa, Oithona similis, Pseudocalanus spp., Microcalanus spp., and Microsetella norvegica) sampled using 64-µm mesh nets. Numeri
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11

BALQIAH, BALQIS, and Azman Abdul Rahim. "An updated checklist of marine copepoda from Peninsular Malaysia with notes on their functional traits and distributional records." Borneo Journal of Marine Science and Aquaculture (BJoMSA) 5, no. 1 (2021): 8–24. http://dx.doi.org/10.51200/bjomsa.v5i1.2709.

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An up-to-date checklist of marine zooplankton copepods from the water of Peninsular Malaysia is presented, there are 235 species of copepods which consists of 89 genera and 44 families. Extensive list of bibliographical references with synonymy, detailed information on their functional groups, and distributional data are provided for each species. The checklist is based on taxonomic and ecological literature until 28 May 2020. Calanoida recorded the most diverse order with 101 species in total, followed by Harpacticoida with 70 species and 61 species from Cyclopoida. As for Canuelloida, Monstr
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12

Gonçalves, A. M. M., M. De Troch, S. C. Marques, M. A. Pardal, and U. M. Azeiteiro. "Spatial and temporal distribution of harpacticoid copepods in Mondego estuary." Journal of the Marine Biological Association of the United Kingdom 90, no. 7 (2010): 1279–90. http://dx.doi.org/10.1017/s002531541000041x.

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Seasonal and spatial variations in the composition and relative contribution of the harpacticoid species in the Mondego estuary (western Portugal) were studied based on a monthly sampling along a salinity gradient. These benthic harpacticoids were collected in the water column by means of a 63-µm plankton net. The influence of hydrological parameters (temperature, salinity, oxygen dissolved concentration, pH, turbidity, chlorophyll-a, total suspended solids and nutrient concentrations) was analysed by means of a redundancy data analysis. In addition, this is the first study to provide a checkl
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13

Di Mauro, Rosana, Fabiana Capitanio, and María Delia Viñas. "Capture efficiency for small dominant mesozooplankters (Copepoda, Appendicularia) off Buenos Aires Province (34ºS-41ºS), Argentine Sea, using two plankton mesh sizes." Brazilian Journal of Oceanography 57, no. 3 (2009): 205–14. http://dx.doi.org/10.1590/s1679-87592009000300004.

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Two plankton mesh sizes of 67 µm and 220 µm were compared to evaluate their efficiency in the capture of the smallest copepods and appendicularians present in the Buenos Aires coastal area (Argentine Sea). A total of 12 copepod species and one appendicularian species were recorded in this study. The copepods were separated into 4 groups: harpacticoids, cyclopoids, small calanoids and large calanoids and their developmental stages. Among the cyclopoids, Oithona nana was the most abundant species, being 96.29 % underestimated by the 220 µm mesh, whereas Microsetella norvegica dominated the harpa
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14

Nguyễn, Thị Kim Liên, Nam Sơn Võ та Trường Giang Huỳnh. "Thành phần loài và mật độ giáp xác râu ngành (Cladocera) và giáp xác chân chèo (Copepoda) trong ao nuôi tôm nước lợ thâm canh". Can Tho University Journal of Science 58, № 6 (2022): 77–87. http://dx.doi.org/10.22144/ctu.jvn.2022.246.

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Mục tiêu của nghiên cứu là nhằm đánh giá sự biến động về thành phần loài Cladocera và Copepoda trong các ao nuôi tôm nước lợ. Nghiên cứu được thực hiện ở 6 ao tôm gồm 3 ao nuôi tôm sú và 3 ao nuôi tôm thẻ chân trắng tại xã Vĩnh Trạch Đông, thành phố Bạc Liêu, tỉnh Bạc Liêu. Kết quả cho thấy các yếu tố môi trường nước các ao nuôi tôm như nhiệt độ, pH, độ mặn, TAN, NO3-, PO43-, TN, TP và chlorophyll-a trong giới hạn phù hợp của tôm. Có 34 loài động vật nổi được ghi nhận trong các ao nuôi tôm, trong đó Cladocera (1 loài) và Copepoda (4 loài) chiếm tỉ lệ khá thấp. Mật độ của Copepoda (gồm ấu trùng
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15

Arendt, Kristine Engel, Thomas Juul-Pedersen, John Mortensen, Martin Emil Blicher, and Søren Rysgaard. "A 5-year study of seasonal patterns in mesozooplankton community structure in a sub-Arctic fjord reveals dominance of Microsetella norvegica (Crustacea, Copepoda)." Journal of Plankton Research 35, no. 1 (2012): 105–20. http://dx.doi.org/10.1093/plankt/fbs087.

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16

Niehoff, B., T. Schmithüsen, N. Knüppel, M. Daase, J. Czerny, and T. Boxhammer. "Mesozooplankton community development at elevated CO<sub>2</sub> concentrations: results from a mesocosm experiment in an Arctic fjord." Biogeosciences 10, no. 3 (2013): 1391–406. http://dx.doi.org/10.5194/bg-10-1391-2013.

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Abstract. The increasing CO2 concentration in the atmosphere caused by burning fossil fuels leads to increasing pCO2 and decreasing pH in the world ocean. These changes may have severe consequences for marine biota, especially in cold-water ecosystems due to higher solubility of CO2. However, studies on the response of mesozooplankton communities to elevated CO2 are still lacking. In order to test whether abundance and taxonomic composition change with pCO2, we have sampled nine mesocosms, which were deployed in Kongsfjorden, an Arctic fjord at Svalbard, and were adjusted to eight CO2 concentr
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17

Koski, Marja, Rasmus Swalethorp, Sanne Kjellerup, and Torkel Gissel Nielsen. "Aggregate-colonizing copepods in a glacial fjord: Population dynamics, vertical distribution and allometric scaling of growth and mortality rates of Microsetella norvegica and Oncaea spp." Progress in Oceanography 197 (September 2021): 102670. http://dx.doi.org/10.1016/j.pocean.2021.102670.

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18

Niehoff, B., N. Knüppel, M. Daase, J. Czerny, and T. Boxhammer. "Mesozooplankton community development at elevated CO<sub>2</sub> concentrations: results from a mesocosm experiment in an Arctic fjord." Biogeosciences Discussions 9, no. 8 (2012): 11479–515. http://dx.doi.org/10.5194/bgd-9-11479-2012.

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Abstract. The increasing CO2 concentration in the atmosphere caused by burning fossil fuels leads to increasing pCO2 and decreasing pH in the world oceans. These changes may have severe consequences for marine biota, especially in cold-water ecosystems due to higher solubility of CO2. However, studies on the response of mesozooplankton communities to elevated pCO2 are yet lacking. In order to test whether abundance and taxonomic composition change with pCO2, we have sampled nine mesocosms, which were deployed in Kongsfjorden, an Arctic fjord at Svalbard, and were adjusted to eight CO2 concentr
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19

Mooney, Benjamin Paul, Morten Hvitfeldt Iversen, and Maria Fredrika Norrbin. "Impact of Microsetella norvegica on carbon flux attenuation and as a secondary producer during the polar night in the subarctic Porsangerfjord." Frontiers in Marine Science 10 (July 13, 2023). http://dx.doi.org/10.3389/fmars.2023.996275.

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It is known that Microsetella norvegica feed on phytoplankton and provide an important link to higher trophic levels in Arctic fjords, such as fish sprat (Sprattus sprattus) and three-spined stickleback (Gasterosteus aculeatus). It has recently been suggested that M. norvegica may also contribute substantially to carbon flux attenuation during periods of high abundance. However, we still know very little about how seasonal variations in abundance and vertical distribution of M. norvegica impact the efficiency of the biological carbon pump in Arctic fjords. We investigated the role of Microsete
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20

Flo, Snorre, Camilla Svensen, Kim Præbel, Bodil Annikki Bluhm, and Anna Vader. "Dietary plasticity in small Arctic copepods as revealed with prey metabarcoding." Journal of Plankton Research, September 5, 2024. http://dx.doi.org/10.1093/plankt/fbae042.

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Abstract Objectives Small copepods (&amp;lt;2 mm) compose an important constituent of the Arctic marine food web, but their trophic interactions remain largely unexplored, partly due to methodological limitations. Methods We here characterize the prey of the abundant cyclopoid Oithona similis, harpacticoid Microsetella norvegica and calanoid Microcalanus spp. from the Arctic Barents Sea and Nansen Basin during four seasons using brute force prey metabarcoding of the 18S rRNA gene. Key findings Chaetognaths were unexpectedly the most consistently identified taxa and composed 47% of all prey rea
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21

Svensen, Camilla, Morten Iversen, Fredrika Norrbin, et al. "Impact of aggregate‐colonizing copepods on the biological carbon pump in a high‐latitude fjord." Limnology and Oceanography, July 29, 2024. http://dx.doi.org/10.1002/lno.12641.

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AbstractZooplankton consumption of sinking aggregates affects the quality and quantity of organic carbon exported to the deep ocean. Increasing laboratory evidence shows that small particle‐associated copepods impact the flux attenuation by feeding on sinking particles, but this has not been quantified in situ. We investigated the impact of an abundant particle‐colonizing copepod, Microsetella norvegica, on the attenuation of the vertical carbon flux in a sub‐Arctic fjord. This study combines field measurements of vertical carbon flux, abundance, and size‐distribution of marine snow and degrad
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22

Koski, Marja, Rasmus Swalethorp, Sanne Kjellerup, and Torkel Gissel Nielsen. "Aggregate-colonizing copepods in a glacial fjord: Population dynamics, vertical distribution and allometric scaling of growth and mortality rates of Microsetella norvegica and Oncaea spp." September 1, 2021. https://doi.org/10.1016/j.pocean.2021.102670.

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Abstract: Most global analysis on the role of copepods in food web efficiency or carbon sequestration ignore the har-pacticoid or poecilostomatoid copepods that are under-estimated in traditional zooplankton surveys and under- studied with respect to their ecology and behavior. Nevertheless, when small-mesh-size nets are used these groups appear to dominate zooplankton abundance and sometimes even biomass from Arctic to tropical seas. We studied the seasonal succession of abundance, body size, vertical distribution, reproduction, growth and mor-tality of two aggregate-colonizing copepods, Micr
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23

Morales-Ávila, José Raúl, Ricardo Palomares-García, and Ricardo J. Saldierna-Martínez. "The interplay between Microsetella norvegica (Harpacticoida, Ectinosomatidae) and Pleurobrachia bachei (Ctenophora: Pleurobrachiidae) reveals novel trophic interactions." Regional Studies in Marine Science, February 2023, 102869. http://dx.doi.org/10.1016/j.rsma.2023.102869.

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24

Stuart-Lee, Alice, Eva Friis Møller, Mie Winding, Dick van Oevelen, Katharine R. Hendry, and Lorenz Meire. "Contrasting copepod community composition in two Greenland fjords with different glacier types." Journal of Plankton Research, November 13, 2024. http://dx.doi.org/10.1093/plankt/fbae060.

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Abstract Greenland's fjord ecosystems are strongly influenced by meltwater discharge from glaciers. Marine-terminating glaciers can significantly enhance primary production during the melt season (compared to land-terminating glaciers), but their impact on secondary producers is not well understood. Here, we study seasonal changes in the zooplankton community (&amp;gt;50 μm) and grazing rates along two fjord transects in southwest Greenland influenced by different glacier types. Zooplankton biomass was comparable between the fjords, but community composition differed during summer. Nuup Kanger
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25

Bhattacharyya, Purbita, K. Anbarasu, and S. Balakrishnan. "Diversity and Taxonomical Identification of Marine Zooplankton from Digha Adjacent Coastal Waters." Records of the Zoological Survey of India, July 1, 2023, 389–400. https://doi.org/10.26515/rzsi/v123/i2s/2023/172554.

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Zooplankton is significant organisms in the food chain as predators of phytoplankton, the photosynthetic oxygen-producing aquatic plants; thus, they protect the ecosystem from eutrophication. Zooplankton are diversified and widely distributed throughout the lotic and lentic water bodies. The marine zooplankton community includes many different species of animals, ranging in size from microscopic protozoans to animals of several meters in dimension with buoyancy capacity. In this article, we describe the distribution, diversity, and taxonomic identification of marine zooplankton as evaluated by
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