The cuckoo wrasse, Labrus mixtus (Pisces: Labridae): biological indices for life history and conservation
| Autor: | Jasna Šiljić, Armin Pallaoro, Sanja Matić-Skoko, Dubravka Bojanić Varezić, Pero Tutman |
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| Rok vydání: | 2013 |
| Předmět: |
0106 biological sciences
education.field_of_study Stock assessment biology 010604 marine biology & hydrobiology Population Labrus Aquatic Science Oceanography biology.organism_classification 010603 evolutionary biology 01 natural sciences Fishery Gonadosomatic Index Habitat destruction Hermaphrodite Wrasse 14. Life underwater education Cuckoo |
| Zdroj: | Scientia Marina. 77:595-605 |
| ISSN: | 1886-8134 0214-8358 |
| DOI: | 10.3989/scimar.03884.07a |
| Popis: | The cuckoo wrasse, Labrus mixtus, is widely distributed in the moderate warm waters of the Atlantic Ocean, including the Mediterranean and Adriatic Seas. Generally, labrids are small inshore coastal species susceptible to anthropogenic habitat degradation and, although without commercial importance, they make up a significant part of the by-catch and discard. Also, these fishes are intensively caught in recreational and subsistence fisheries. Basic biological information is required for their stock assessment and conservation. Studies of the age, growth, reproduction and feeding of L. mixtus have not been undertaken previously in the Adriatic Sea. The observed maximum age of the cuckoo wrasse was 10 years, although most of the sampled fish were 7 years old. The estimated parameters of the von Bertalanffy growth model suggested that the growth of L. mixtus was relatively fast in the first four years of life. L. mixtus is a protogynous hermaphrodite and sex change occurred at 26 cm, while the greatest increase in gonadosomatic index in April confirmed spring as the spawning period. The cuckoo wrasse is an opportunistic predator, feeding primarily on crustaceans, gastropods and fishes. The information provided on biological indices is necessary for life history pathways and future conservation measures of this population in the Adriatic Sea. |
| Databáze: | OpenAIRE |
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