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RESEARCH PRODUCT
Trophic relationships between two gurnards Trigla lucerna and Aspitrigla obscura from the western Mediterranean
Manuel J. RedónM. S. MorteAntonio Sanz-brausubject
0106 biological sciencesMediterranean climateTub gurnardbiology010604 marine biology & hydrobiologyZoology04 agricultural and veterinary sciencesAquatic ScienceSeasonalitybiology.organism_classificationmedicine.disease01 natural sciencesCrustaceanPredationTriglidaeMediterranean sea040102 fisheriesmedicine0401 agriculture forestry and fisheries14. Life underwaterTrophic leveldescription
The feeding habits of Trigla lucerna L. (1758) and Aspitrigla obscura L. (1764) (Pisces: Triglidae), off the coast of the Gulf of Valencia (Spain), were investigated between October 1989 and January 1991. The two species examined in this study appear to have distinct feeding types, based on the species composition of prey and the frequency of occurrence of major food items. Tub gurnard had a more diverse diet and fed mainly on crustaceans (mysids and decapods), teleosts and molluscs, whilst long fin gurnard were less piscivorous and fed mainly on mysids and natantids. No significant differences were found in the annual variation of vacuity coefficient for either species. Diet composition in these species did not show great changes with either season and size of fish. There was little dietary overlap between these two species.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1997-05-01 | Journal of the Marine Biological Association of the United Kingdom |