Zoeken
Zoeken kan via de modus 'eenvoudig zoeken' (één veld) of uitgebreid via 'geavanceerd zoeken' (meerdere velden). Zo kan je bv. zoeken op een combinatie van een auteursnaam (auteur), een jaartal (jaar) en een documenttype.
Boekenmand
Nuttige resultaten kan je aanvinken en toevoegen aan een mandje. De inhoud hiervan kan je exporteren of afdrukken (naar bv. PDF).
RSS
Op de hoogte blijven van nieuw toegevoegde publicaties binnen uw interessegebied? Dit kan door een RSS-feed (?) te maken van jouw zoekopdracht.
nieuwe zoekopdracht
Relationship between swordfish swimming behaviour and sea surface temperature in the central Mediterranean Sea during the reproductive period
Romeo, T.; Perzia, P.; Esposito, V.; Malara, D.; Battaglia, P.; Consoli, P.; Canese, S.; Andaloro, F. (2011). Relationship between swordfish swimming behaviour and sea surface temperature in the central Mediterranean Sea during the reproductive period. Mar. Biol. Res. 7(2): 186-194. http://dx.doi.org/10.1080/17451000.2010.489615
In: Marine Biology Research. Taylor & Francis: Oslo; Basingstoke. ISSN 1745-1000; e-ISSN 1745-1019
|  |
| Trefwoorden |
Harpoons
MED, Central Mediterranean
Sea surface temperature
Spawning
Swordfish fisheries
Mediterranean Sea [Marine Regions]
Marien/Kust |
| Author keywords |
Central Mediterranean Sea; harpoon fishery; sea surface temperature;spawning; surface swimming behaviour; swordfish |
| Auteurs | | Top |
- Romeo, T.
- Perzia, P.
- Esposito, V.
- Malara, D.
|
- Battaglia, P.
- Consoli, P.
- Canese, S.
- Andaloro, F.
|
|
| Abstract |
Swordfish is the target species for harpoon fishery in the Central Mediterranean Sea (southern Tyrrhenian Sea and Strait of Messina). This is a seasonal fishing activity, carried out in daylight during the swordfish's reproductive period. The relationship between sea surface temperature (SST), catches, Catch per Unit Effort (CPUE) and fish swimming behaviour, recorded by direct observation, was investigated between 1999 and 2008. Data from AVHRR-SST (Advanced Very High Resolution Radiometer-Sea Surface Temperature), the meteorological station and the swordfish daily catch were recorded. A low presence of pairs was observed in the 2003 summer season, corresponding to an anomalous sea surface temperature recorded in the study area. After 2003, an early presence of pairs (in May rather than in June) was recorded. ANOVA and Bonferroni correction showed significant differences of CPUE of pairs between May and June, and June and August (F3=8.07, P<0.0001). The relationship between immature and mature adult specimens, single and in pairs, four ranges of SST, seven swimming behaviours and five maturity stages was analysed by the multiple correspondence analysis (MCA). Fish in pairs were mainly observed at temperatures over 24°C, showing a well-defined courtship behaviour, i.e. a female route. At lower temperatures, the dominant behaviour was basking in immature fish and breaching in mature fish. A significant relationship between SST and fish behaviour was detected in both immature and mature adult specimens. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
