Growth features of an endemic population of Chondrostoma holmwoodii (Actinopterygii: Cypriniformes: Cyprinidae) in western Anatolia

• Autorzy: Ilhan A. , Sari H. M. , Balik S.
• Języki publikacji: EN

Abstrakty

EN

Background. The Izmir nase, Chondrostoma holmwoodii (Boulenger, 1896), an endemic species for the inland waters of Turkey, is in the category of DD “Data Deficient” in the list of IUCN Red Data Book. There are insufficient data on the biological characteristics of the species in the literature. The aim of this study was to obtain the growth characteristics of Izmir nase population from Western Anatolia and compare them with the previous data reported in literature. Materials and Methods. Biological features of Izmir nase were examined based on a total of 1208 specimens collected from Tahtalı Dam Lake during the period May 2006–April 2007. Age of fish was determined by reading scales. Length–weight relation and the von Bertalanffy equation were used to evaluate the fish growth. Results. Scales reading indicated the presence of 5 age classes. The computed growth parameters were: L∞ = 29.19 cm, k = 0.177 · year–1 and t0 = –3.258 year–1 for both sexes. The length-weight relations were estimated as W = 0.019 L2.97, W = 0.012 L3.11 and W = 0.011 L3.13 for females, males, and both sexes combined, respectively. Conclusion. The Izmir nase from Tahtalı Dam Lake was characterized by linear growth and it was observed that the fish grew faster during the first two years. Many endemic fish species in inland waters of Turkey are under the threat of extinction due to human activities (pollution, drought, dam construction, habitat degradation, and overfishing) but the species is not threatened by these factors in the study area.

Słowa kluczowe

EN

growth feature; endemic population; Chondrostoma holmwoodii; fish; animal growth; population structure; Actinopterygii; Cypriniformes; Cyprinidae; Anatolia; Turkey

• Wydawca: -
• Czasopismo: Acta Ichthyologica et Piscatoria
• Rocznik: 2010
• Tom: 40
• Numer: 2
• Opis fizyczny: p.155-159,fig.,ref.

Twórcy

autor

Ilhan A.

• Ege University, Faculty of Fisheries, 35100 Bornova-Izmir, Turkey

autor

Sari H. M.

autor

Balik S.

Bibliografia

• Anonymous 2007. Devlet Su İşleri Genel Müdürlüğü. [General Directorate of State Hydraulic Works.] [Downloaded on 5 April 2007.] www.dsi.gov.tr. [In Turkish].
• Balık S. 1979. Batı Anadolu Tatlısu Balıklarının Taksonomisi ve Ekolojik Özellikleri Üzerine Araştırmalar. [Investigations of taxonomic and ecological features of freshwater fishes of western Anatolia.] Ege Üniversitesi Fen Fakültesi İlmi Raporlar Serisi No: 236 (Doktora Tezi), 61 s. [Ege University Faculty of Science Scientific Reports Series. No. 236. (Doctorate Thesis)] [In Turkish.]
• Balık S., Ustaoğlu M.R., Sarı H.M., Aygen C. 1995. Tahtalı Baraj Havzasının (Gümüldür-İzmir) Omurgalı Faunası. [The vertebrate fauna of Tahtalı Dam Lake Basin (Gümüldür-İzmir). II.] Pp. 463–472. In: II. Ulusal Ekoloji ve Çevre Kongresi. 11-13 Eylül, Ankara, 463–472. [National Ecology and Environment Congress. September 11–13, Ankara.] [In Turkish].
• Boulenger G.A. 1896. On freshwater fishes from Smyrna. The Annals and Magazine of Natural History 18: 153–154.
• Crivelli A. J. 2006. Chondrostoma holmwoodii. In: IUCN 2009. IUCN Red List of Threatened Species. Version 2009.2. [Downloaded on 11 August 2009.] www.iucnredlist.org
• Elvira B. 1987. Taxonomic revision of the genus Chondrostoma Agassiz, 1835 (Pisces, Cyprinidae). Cybium 11 (2): 111–140.
• Froese R., Pauly D. (eds.) 2009. FishBase. [version 04/2009] http://www.fishbase.org.
• Karaman M. 1969. Süßwasserfische der Türkei. 7. Teil. Revision der kleinasiatischen und vorderasiatischen Arten des Genus Capoeta (Varicorhinus, partim). Mitteilungen aus dem Hamburgischen Zoologischen Museum und Institut 66: 17–54.
• Karaman M.S. 1972. Süßwasserfische Der Türkei. 9. Teil Revision Einiger kleinwüchsiger Cyprinidengattungen Phoxinellus, Leucaspius, Acanthobrama usw. Aus Südeuropa, Kleinasien, Vorder-Asien und Nordafrica. Mitteilungen aus dem Hamburgischen Zoologischen Museum und Institut 69: 115–155.
• Kosswig C., Battalgil F. 1943. Beitrage zur Türkischen Faunengeschichte. I. Süsswasserfische. Comptes Rendus de la Société Turque des Sciences Physiques, Istanbul 8: 32–60.
• Ladiges W. 1960. Süßwasserfische der Türkei. 1. Teil. Cyprinidae. Mitteilungen aus dem Hamburgischen Zoologischen Museum und Institut 58: 105–150.
• Ladiges W. 1966. Süßwasserfische der Türkei. 4. Teil. Die Gattung Chondrostoma (Cyprinidae) in der Türkei. Mitteilungen aus dem Hamburgischen Zoologischen Museum und Institut 63: 101–109.
• Mermer A., Balık S. 1991. Gediz Nehrindeki Kababurun Balığı (Chondrostoma nasus Linnaeus, 1758) Populasyonunun Biyolojik Yönden İncelenmesi. [Biological investigation on a population of the nase (Chondrostoma nasus Linnaeus, 1758) in the Gediz River.] Ege Üniversitesi Fen Bilimleri Enstitüsü Dergisi İzmir 2 (1): 17–23. [In Turkish.]
• Pauly D. 1980. On the interrelationships between natural mortality, growth parameters, and mean environmental temperature in 175 fish stocks. Journal du Conseil—Conseil international pour l’Exploration de la Mer 39 (2): 175–192.
• Pellegrin J. 1928. Les poissons des eaux douces d’Asie-Mineure. J.-B. Bailliere et Fils, Paris (Extrait du tome second et dernier du Voyage zoologique d’Henri Gadeau de Kerville en Asie-Mineure (Avril–Mai 1912)).
• Ricker W.E. 1975. Computation and interpretation of biological statistics of fish populations. Bulletin of the Fisheries Research Board of Canada 191: 1–382.
• Sparre P., Ursin E., Venema S.C. 1989. Introduction to tropical fish stock assessment. Part 1. Manual, FAO Fisheries Technical Paper No. 306/1. FAO, Roma.
• Tesch F.W. 1970. Age and growth. Pp. 93–123. In: Ricker W.E. (ed.), Methods for assessment of fish production in fresh waters. IBP Handbook. Blackwell Scientific Publications, Oxford and Edinburg.