Pregled bibliografske jedinice broj: 857719
Phenology and abundance of the schyphomedusan Discomedusa lobata in Boka Kotorska Bay (Montenegro)
Phenology and abundance of the schyphomedusan Discomedusa lobata in Boka Kotorska Bay (Montenegro) // 5th International Jellyfish Bloom Symposium / Jennifer Purcell (Western Washington University, USA) Stefano Piraino (CONISMA, Università del Salento, Italy) Agustín Schiariti (INIDEP, Mar del Plata, Argentina) Antonio Canepa (Pontificia Universidad Católica de Valparaiso, Chile) (ur.).
Barcelona: Natural History Museum of Barcelona, Barcelona, Spain, 2016. (poster, međunarodna recenzija, sažetak, ostalo)
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Naslov
Phenology and abundance of the schyphomedusan Discomedusa lobata in Boka Kotorska Bay (Montenegro)
Autori
Lučić, Davor ; Branka Pestorić, Ivona Onofri, Vesna Mačić, Vladimir Onofri
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, ostalo
Izvornik
5th International Jellyfish Bloom Symposium
/ Jennifer Purcell (Western Washington University, USA) Stefano Piraino (CONISMA, Università del Salento, Italy) Agustín Schiariti (INIDEP, Mar del Plata, Argentina) Antonio Canepa (Pontificia Universidad Católica de Valparaiso, Chile) - Barcelona : Natural History Museum of Barcelona, Barcelona, Spain, 2016
Skup
5th International Jellyfish Bloom Symposium
Mjesto i datum
Barcelona, Španjolska, 30.05.2016. - 03.06.2016
Vrsta sudjelovanja
Poster
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
schyphomedusae, bloom, hydrography influence, gut content
(5th International Jellyfish Bloom Symposium)
Sažetak
Discomedusa lobata, a rare schyphomedusan in the Mediterranean Sea, recently has been observed in Boka Kotorska Bay. Jellyfish sampling and abundance estimating was done by SCUBA. Additional observations were made by remote video from a research vessel. The first reliable record was in 2013 when specimens were found sporadically from early March to mid-July in the inner bay. The first bloom, estimated at 100 individuals per 10 m2, was in April 2014, with another in mid-May. The latter lasted two days, after which no individuals were observed. High numbers (10 ind. per 10 m2) also were present for over 8 days in February 2015, after which individuals were found only sporadically. An extremely dense bloom at the end of March 2015 occurred in a shallow area influenced by spring water. Water temperature during blooms ranged from 13.5 to 19.1 C. Salinity generally was low, between 8.5 and 25.5. Bell diameters averaged 4.6±0.9 cm (range: 2.1 to 8.2 cm). Guts (50 specimens) contained prey (exclusively the salp Thalia democratica) only in March 2013. Stomachs were empty during other blooms. This, and the absence of past D. lobata blooms, is difficult to explain and underlines that the biology and ecology of this species is fairly unknown. Present observations suggest that low salinity and low temperature are important in their presence and abundance.
Izvorni jezik
Engleski
Znanstvena područja
Geologija, Biologija
