Seasonal variability in Dinophysis spp. abundances and diarrhetic shellfish poisoning outbreaks along the eastern Adriatic coast
-
Živana Ninčević-Gladan
Abstract
Annual dynamics and ecological characteristics of the genus Dinophysis spp. and associated shellfish toxicity events were studied from 2001 to 2005 during monitoring fieldwork in the coastal waters of the eastern Adriatic Sea. Analysis of the seasonal occurrence of Dinophysis species identified D. acuminata and D. sacculus as typical spring species, D. caudata, D. fortii and D. rotundata as summer and late summer species and D. tripos as a winter species. The highest abundances occurred when there were large differences between surface and bottom temperatures and salinities. D. caudata, D. sacculus and D. rotundata abundances had significant relationships with Δt, while the highest abundances of D. acuta, D. fortii and D. tripos were associated with high Δs values. Much higher abundances of D. caudata and D. fortii in offshore compared to inshore waters of the northern Adriatic Sea and the significant inverse relationship of these species' abundances with salinity suggested the possibility of their transport by Italian river-influenced coastal waters towards the eastern Croatian coast during the summer season and under stratified conditions. Toxicity events occurred more frequently in the more eutrophicated northern Adriatic Sea than in the southern Adriatic Sea and mostly succeeded the rainfall periods. Diarrhetic shellfish poisoning (DSP) toxin profile analyses identified okadaic acid and yessotoxin as the main DSP toxins occurring in Croatian waters.
©2008 by Walter de Gruyter Berlin New York
Articles in the same Issue
- Research articles
- Seasonal variability in Dinophysis spp. abundances and diarrhetic shellfish poisoning outbreaks along the eastern Adriatic coast
- Patterns of diversity in rocky subtidal macroalgal assemblages in relation to depth
- The green seaweed Ulva rigida as a bioindicator of metals (Zn, Cu, Pb and Cd) in a low-salinity coastal environment
- Effects of salt and light stress on the release of volatile halogenated organic compounds by Solieria chordalis: a laboratory incubation study
- Biological importance of an Atlantic European maërl bed off Benencia Island (northwest Iberian Peninsula)
- A comparative study of Cocconeis scutellum Ehrenberg and its varieties (Bacillariophyta)
- Meetings
- Meetings
- Reviewer acknowledgement Bot. Mar. volume 51 (2008)
- Reviewer acknowledgement Bot. Mar. volume 51 (2008)
- Contents index Bot. Mar. volume 51 (2008)
- Contents index Bot. Mar. volume 51 (2008)
- Author index Bot. Mar. volume 51 (2008)
- Author index Bot. Mar. volume 51 (2008)
- Genus/Species index Bot. Mar. volume 51 (2008)
- Genus/Species index Bot. Mar. volume 51 (2008)
Articles in the same Issue
- Research articles
- Seasonal variability in Dinophysis spp. abundances and diarrhetic shellfish poisoning outbreaks along the eastern Adriatic coast
- Patterns of diversity in rocky subtidal macroalgal assemblages in relation to depth
- The green seaweed Ulva rigida as a bioindicator of metals (Zn, Cu, Pb and Cd) in a low-salinity coastal environment
- Effects of salt and light stress on the release of volatile halogenated organic compounds by Solieria chordalis: a laboratory incubation study
- Biological importance of an Atlantic European maërl bed off Benencia Island (northwest Iberian Peninsula)
- A comparative study of Cocconeis scutellum Ehrenberg and its varieties (Bacillariophyta)
- Meetings
- Meetings
- Reviewer acknowledgement Bot. Mar. volume 51 (2008)
- Reviewer acknowledgement Bot. Mar. volume 51 (2008)
- Contents index Bot. Mar. volume 51 (2008)
- Contents index Bot. Mar. volume 51 (2008)
- Author index Bot. Mar. volume 51 (2008)
- Author index Bot. Mar. volume 51 (2008)
- Genus/Species index Bot. Mar. volume 51 (2008)
- Genus/Species index Bot. Mar. volume 51 (2008)
