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Sveueilište u Dubrovniku
Institut za more i priobalje

Kneza Damjana Jude 12, pp. 83
20000 Dubrovnik
Tel. 020 32 39 78, Fax: 020 32 38 72
dr. sc. Nenad Jasprica, ravnatelj
e-mail: nenad.jasprica@unidu.hr
Gordana Perak, tajnica
e-mail: gordana.perak@unidu.hr

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ids 2008 International Diatom Symposium Dubrovnik















Suradnici Diseminacija Publikacije Terenska istraživanja

Publikacije

Miloslavić, Marijana; Garić, Rade; Lučić, Petra; Maguire, Ivana; Lučić, Davor. 2016. Ecology and population structure of the hyperbenthic copepod Mesaiokeras hurei Kršinić, 2003 (Calanoida: Mesaiokeratidae) from an isolated marine lake (Mljet island, Southern Adriatic Sea, Croatia). Journal of crustacean biology. 36(3):295-302 (IF 1.081). DOI: 10.1163/1937240X-00002421



Abstract

The monogeneric family Mesaiokeratidae (Copepoda: Calanoida) is exclusively bentho-pelagic and comprises nine small hyperbenthic species. Previous knowledge of these species has been limited to the description of their morphology and habitat. We provide new information about the ecology of Mesaiokeras hurei Kršinić, 2003, one of the small-size species of the family and found only in an isolated marine lake on the southern Adriatic island of Mljet (Croatia). Genetic markers were used to investigate its phylogenetic relationships with other copepods. The abundance of M. hurei was highly variable over the years and seasons sampled. Densities were higher in spring and autumn. It was particularly abundant in 2011, averaging 629 ± 800 individuals/m3, and with a maximum of 1971 individuals m−3 in November, but averaged 74 ± 71 individuals/m3 and 66 ± 71 individuals/m3 in 2001 and 2008, respectively. Specimens were found in a range of temperatures, from 10.5°C to 18.3°C, but a majority of individuals (67%) was found in the 12-14°C layer. In addition to temperature, oxygen was a significant predictor (p < 0.001) of the vertical micro-distribution of M. hurei. The DNA barcode sequence for the species is reported here for the first time. Analysis of the nuclear small subunit rRNA gene fragment (18S) showed a genetic similarity with representatives of the superfamily Clausocalanoidea.



Garić R. & Batistić M. 2016. Description of Brooksia lacromae sp. nov. (Tunicata, Thaliacea) from the Adriatic Sea. European Journal of Taxonomy 196: 1–13. http://dx.doi.org/10.5852/ejt.2016.196



Abstract

Brooksia lacromae sp. nov. is described from zooplankton material collected at a marine monitoring station in the South Adriatic in the autumn of 2014. The description of both solitary and aggregate forms is given along with 18S rRNA and mitochondrial cox1 sequence data that provides strong evidence that both forms belong to the same species. The described species is morphologically markedly different from B. rostrata (Traustedt, 1893) and B. berneri van Soest, 1975, previously the only two species in the genus Brooksia. Genetic analysis based on 18S rRNA gene confirmed distinctness of B. lacromae sp. nov. from B. rostrata (1.5% uncorrected pairwise distance). The appendicularian Fritillaria helenae Bückmann, 1924, so far known from the Atlantic only, was found in the same samples as B. lacromae sp. nov. Co-occurrence of B. lacromae sp. nov. with an Atlantic appendicularian suggests an Atlantic or Western Mediterranean origin for this new taxon.




Miloslavic et al.



Garić et Batistić


Anketa
Azerbajdžan, država u jugozapadnoj Aziji, ne graniči s:
Iranom
Armenijom
Gruzijom
Rusijom
Turskom


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Rješenje iz prošle ankete je:
Medjunarodni dan biološke raznolikosti kojeg su proglasili Ujedinjeni narodi 1993. obilježava se svake godine 22. svibnja.


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