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Letteratura scientifica selezionata sul tema "Medusae biological characteristics"

Autore: Grafiati

Pubblicato: 7 giugno 2025

Ultima modifica: 2 agosto 2025

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Articoli di riviste sul tema "Medusae biological characteristics"

1

Greer, Adam T., Luciano M. Chiaverano, Jessica Y. Luo, Robert K. Cowen, and William M. Graham. "Ecology and behaviour of holoplanktonic scyphomedusae and their interactions with larval and juvenile fishes in the northern Gulf of Mexico." ICES Journal of Marine Science 75, no. 2 (2017): 751–63. http://dx.doi.org/10.1093/icesjms/fsx168.

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Abstract Pelagia noctiluca is a venomous, globally distributed holoplanktonic scyphomedusa that periodically forms aggregations in coastal environments, yet little is known about its ecology and behaviour in the northern Gulf of Mexico (nGOM). Using a high resolution plankton imaging system, we describe the patch characteristics of Pelagia medusae in relation to fine-scale biological and physical variables during two summers at shallow (∼25 m, 2016) and deeper (∼45 m, 2011) sampling areas on the nGOM shelf. At the deeper site during the day, average Pelagia medusae concentrations just undernea

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2

Mihneva, Vesselina Vasileva, Elitsa Slaveva Stefanova, and Kremena Blagovestova Stefanova. "Ecological interactions driving spring dynamics of Aurelia aurita medusae (Linnaeus, 1758) in the western and north-western Black Sea." Nature Conservation 58 (May 9, 2025): 273–88. https://doi.org/10.3897/natureconservation.58.148580.

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Abstract (sommario):

This study examined the ecological factors influencing spring fluctuations in the medusa population of the moon jellyfish (<i>Aurelia aurita</i>) in the western and north-western Black Sea between 2009 and 2015. Data were collected at 216 sampling stations, mainly covering coastal and shelf waters of Bulgaria, Romania and Ukraine. The north-western Black Sea exhibited the highest mean abundance (2.48 ind/m3 ± 0.92 SD) and biomass (4.65 g/m3 ± 3.22 SD) of <i>A. aurita</i>, despite individuals in this region having the smallest mean bell diameter (5.7 cm ± 1.5 SD). In contrast, the western regio

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3

van Walraven, Lodewijk, Judith van Bleijswijk, and Henk W. van der Veer. "Here are the polyps: in situ observations of jellyfish polyps and podocysts on bivalve shells." PeerJ 8 (May 28, 2020): e9260. http://dx.doi.org/10.7717/peerj.9260.

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Abstract (sommario):

Most Scyphozoan jellyfish species have a metagenic life cycle involving a benthic, asexually reproducing polyp stage and a sexually reproducing medusa stage. Medusae can be large and conspicuous and most can be identified using morphological characteristics. Polyps on the other hand are small, live a cryptic life attached to hard substrates and often are difficult or impossible to distinguish based on morphology alone. Consequently, for many species the polyp stage has not been identified in the natural environment. We inspected hard substrates in various habitats for the presence of Scyphozoa

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4

Dong, Zhijun, André C. Morandini, Agustin Schiariti, Lei Wang, and Tingting Sun. "First record ofPhyllorhizasp. (Cnidaria: Scyphozoa) in a Chinese coastal aquaculture pond." PeerJ 7 (January 9, 2019): e6191. http://dx.doi.org/10.7717/peerj.6191.

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Abstract (sommario):

BackgroundIt has been suggested that aquaculture ponds on the Chinese coast could act as breeding grounds for scyphozoans. Here, we present the first record of the scyphomedusaPhyllorhizasp. in an aquaculture pond on the coast of the southern Yellow Sea, based on a combination of morphological characteristics and mitochondrial 16S DNA sequence data.MethodsA field survey was performed on June 29, 2017 in a pond used for culturing the shrimpPenaeus japonicus, located in the southern Yellow Sea, China. Jellyfish specimens were collected for morphological and genetic analysis. The morphological ch

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5

Miyake, Hiroshi, Shiho Honda, Jun Nishikawa, and Fatimah Md Yusoff. "Life Cycle of Edible Jellyfish Acromitus hardenbergi Stiasny, 1934 (Scyphozoa: Rhizostomeae) Inhabiting a Brackish-Water Environment." Animals 11, no. 7 (2021): 2138. http://dx.doi.org/10.3390/ani11072138.

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Abstract (sommario):

The edible jellyfish Acromitus hardenbergi Stiasny, 1934 is harvested throughout the year at the mouth of the Perak River, Malaysia. Although this species is an important fishery resource in the local area, limited biological studies have been carried out on it. The aim of the present study was to elucidate the life cycle of this unique brackish-water jellyfish in order to conserve the species and develop sustainable jellyfish fisheries. Mature medusae were collected at the mouth of the Perak River. Embryonic and larval development after fertilization was completed within 24 h until the planul

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6

Sonina, Anzhella V., Anastasya D. Rumjantseva, Anna A. Tsunskaya, and Vera I. Androsova. "Adaptations of epilithic lichens to the microclimate conditions of the White Sea coast." Czech Polar Reports 7, no. 2 (2017): 133–43. http://dx.doi.org/10.5817/cpr2017-2-13.

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Abstract (sommario):

Anatomical and functional features of the following three epilithic lichens Umbilicaria torrefacta, Physcia caesia, Physcia dubia were studied. These species have different morphological characteristics of thalli and occupy similar environmental conditions on supralittoral of the White Sea coast. The studied lichens are widespread in the territory of Karelia. U. torrefacta is an obligate epilithic species, Physcia caesia and Physcia dubia colonize both bark of trees and stones. Within the study area, these species were found only on coastal boulders. Photobiont of all studied lichens is unicel

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7

Bolton, Michael C. "Cumming to an End." M/C Journal 7, no. 4 (2004). http://dx.doi.org/10.5204/mcj.2398.

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Abstract (sommario):

In finding patriarchal oppression in linear narratives, early Second Wave feminist writers like Hélène Cixous, Julia Kristeva, and Luce Irigaray opposed biologically based Freudian theories that claimed the feminine was grounded in a certain essence of male-ness and female-ness. Cixous’ advocacy of écriture féminine includes her critique of traditional narrative, which she claims is structured by a sexual opposition that “has always worked for man’s profit to the point of reducing writing . . . to his laws” (883). Specifically in terms of cinema, the focus of this paper, Laura Mulvey finds sim

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