Reproductive biology of two grey mullet species (Actinopterygii: Mugiliformes: Mugilidae) in a northern Aegean Sea estuarine system

• Autorzy: Koutrakis E.T.
• Języki publikacji: EN

Abstrakty

EN

Background. Limited information is available on the reproductive biology of grey mullets mainly because it is very difficult to collect fully mature specimens. In the presently reported study the reproductive biology of two mugilid species, namely Liza saliens and Liza ramada, was studied in the Vistonis and Porto Lagos estuarine systems. Materials and methods. Gonadosomatic index (GSI) and standard length at first maturity (SL50) were calculated. In order to estimate which oocytes are going to mature, oocyte size-frequency profiles were constructed for each fish and only the most advanced yolked oocytes were considered. The fecundity estimates were obtained using the volumetric method. Results. The results indicated that the sex ratio was in favour of females for both species. The gonadosomatic index indicated that the spawning season of L. saliens extends from June through October and that of L. ramada—from September through January. L. ramada sexually matures at a greater size and older age than L. saliens. For a correct estimate of the fecundity, the smallest group of eggs in both species (<0.20 mm) was rejected. For L. saliens the absolute fecundity varied from 245 000 to 555 000 eggs, while for L. ramada from 150 000 to 685 000 eggs. Fecundity is probably more correlated with the weight of the fish for both species. Conclusion. For the estimation of fecundity the total number of the oocytes is often used. However, this can be misleading as shown from the frequency distribution of the oocytes in the two grey mullet species, where a large proportion of the oocytes will never mature and therefore they do not contribute to the reproduction process. The percentage of these oocytes can be high, as shown in the current study (3.9%–28.1%).

Słowa kluczowe

EN

reproductive biology; grey mullet; Actinopterygii; Mugiliformes; Mugilidae; Aegean Sea; estuarine system; Liza saliens; Liza ramada; sex ratio; gonadosomatic index; fecundity

• Wydawca: -
• Czasopismo: Acta Ichthyologica et Piscatoria
• Rocznik: 2011
• Tom: 41
• Numer: 1
• Opis fizyczny: p.37-46,fig.,ref.

Twórcy

autor

Koutrakis E.T.

• Fisheries Research Institute, National Agricultural Research Foundation, Kavala, Greece

Bibliografia

• Albaret J.-J., Legendre M. 1985. Biologie et écologie des Mugilidae en lagune Ebrié (Côte d’ivoire). Intérêt potentiel pour l’aquaculture lagunaire. Revue d’Hydrobiologie Tropicale 18 (4): 281–303.
• Albertini-Berhaut J. 1975. Biologie des stades juveniles de Teleosteens Mugilidae Mugil auratus Risso 1810, Mugil capito Cuvier 1829 et Mugil saliens Risso 1810: III. Croissance lineaire et ponderale de Mugil capito dans le Golfe de Marseille. Aquaculture 5 (2): 179–197. DOI: 10.1016/0044-8486(75)90097-6.
• Alvarez-Lajonchere L. 1982. The fecundity of mullet (Pisces, Mugilidae) from Cuban waters. Journal of Fish Biology 21 (6): 607–613. DOI: 10.1111/j.1095-8649.1982.tb02864.x.
• Babajimopoulos C., Antonopoulos V. 1992. Hydrological review of Lake Vistonis. Pp. 333–347. In: Gerakis P.A. (ed.) Conservation and management of Greek wetlands. IUCN, Switzerland.
• Bagenal T.B., Braum E. 1971. Eggs and early life history. Pp. 166–198. In: Ricker W.E. (ed.) Methods for assessment of fish production in fresh waters. Blackwell Scientific Publications, Oxford and Edinburgh.
• Blaxter J.H.S. 1969. Development: Eggs and larvae. Pp. 177–252. In: Hoar W.S., Randall D.J. (eds.) Fish physiology. Vol. III. Reproduction and growth—Bioluminescence, pigments, and poisons. Academic Press. London.
• Brusle J. 1981. Sexuality and biology of reproduction in grey mullets. Pp. 94–154. In: Oren O.H. (ed.) Aquaculture of grey mullets. International Biological Programme No. 26. Cambridge University Press, Cambridge.
• Cambrony M. 1984. Identification et périodicité du recrutement des juvéniles de Mugilidae dans les étangs littoraux du Languedoc-Roussillon. Vie et Milieu 34 (4): 221–227.
• Echeverria T.W. 1987. Thirty-four species of California rockfishes: maturity and seasonality of reproduction. Fishery Bulletin 85 (2): 229–250.
• El Maghraby A.M., Hashem M.J., El Sedfy H.M. 1974. Sexual maturity, spawning migration and fecundity of M. capito in Lake Borullus. Bulletin of the Institute of Oceanography and Fisheries, ARE 4: 35–56.
• El Zarka S., El Sedfy H.M. 1970. The biology and fishery of Mugil saliens (Risso) in Lake Quarun, United Arab Republic, UAR. Bulletin of the Institute of Oceanography and Fisheries, Cairo 1: 1–26.
• Ergene S. 2000. Reproduction characteristics of thinlip grey mullet, Liza ramada (Risso, 1826) inhabiting Akgöl-Paradeniz lagoons (Göksü delta). Turkish Journal of Zoology 24 (2): 159–164.
• Farrugio H., Quignard J.P. 1973. Biologie de Mugil (Liza) ramada Risso, 1826 et de Mugil (Chelon) labrosus Risso, 1826 (Poissons, Teleosteens, Mugilides) du lac de Tunis. Taille de premiere maturite sexuelle, cycle et fecondite. Bulletin de l’Institut National Scientifique et Technique d’Oceanographie et de Peche de Salammbo 2 (4): 565–578.
• Greeley M.S.jr., Calder R.D., Wallace A.R. 1987. Oocyte growth and development in the striped mullet, M. cephalus, during seasonal ovarian recrudescence: relationship to fecundity and size at maturity. Fishery Bulletin 85 (2): 187–200.
• Hotos G.N., Avramidou D., Ondrias I. 2000. Reproduction biology of Liza aurata (Risso, 1810), (Pisces:Mugilidae) in the lagoon of Klisova (Messolonghi,W. Greece). Fisheries Research 47 (1): 57–67. DOI: 10.1016/S0165-7836(99)00128-9.
• Hickling C.F. 1970. A contribution to the natural history of the English grey mullet [Pisces, Mugilidae]. Journal of the Marine Biological Association of the United Kingdom 50 (3): 609–633. DOI: 10.1017/S0025315400004914.
• Katselis G., Minos G., Marmagas A., Hotos G., Ondrias I. 1994. Seasonal distribution of Mugilidae fry and juveniles in Messolonghi coastal waters, Western Greece. Bios (Macedonia, Greece) 2: 101–108.
• Koutrakis E.T. 2004. Temporal occurrence and size distribution of greymullet juveniles (Pisces:Mugilidae) in the estuarine systems of the Strymonikos Gulf (Greece). Journal of Applied Ichthyology 20 (1): 76–78. DOI: 10.1111/J.1439-0426.2004.00501.x.
• Koutrakis E.T., Sinis A.I. 1994. Growth analysis of grey mullets (Pisces: Mugilidae) as related to age and site. Israel Journal of Zoology 40: 31–53.
• Koutrakis E.T., Sinis A.I., Economidis P.S. 1994. Seasonal occurrence, abundance and size distribution of grey mullet fry (Pisces: Mugilidae) in the Porto-Lagos Lagoon and Lake Vistonis (Aegean sea, Greece). The Israeli Journal of Aquaculture–Bamidgeh 46 (4): 182–196.
• Κοutrakis E.T., Tsikliras A.C., Sinis A.I. 2005. Temporal variability of the ichthyofauna in a northern Aegean coastal lagoon (Greece). Influence of environmental factors. Hydrobiologia 543 (1): 245–257. DOI: 10.1007/s10750-004-7891-3.
• Naama K.A., Ahmed H.A., Al-Adhub A.H.Y. 1986. Aspects of reproduction of the mullet Liza abu (Heckel), (Pisces, Mugilidae) in Al-HammarMarsh, Iraq. Cybium 10 (1): 47–54.
• Nikolsky G.V. 1969. Theory of fish population dynamics as the biological background for rational exploitation and management of fishery resources. Oliver & Boyd, Edinburgh.
• Pauly D., Yańez-Arancibia A. 1994. Fisheries in Coastal Lagoons. In: Kjerfve B. (ed.) Coastal lagoon processes. Elsevier Oceanography Series 60, Elsevier Science, The Netherlands.
• Rossi R. 1986. Occurrence, abundance and growth of fish fry in Scardovari Bay, a nursery ground of the Po River delta (Italy). Archivio di Oceanografia e Limnologia 20: 259–280.
• Snyder D.E. 1985. Fish eggs and larvae. Pp. 165–197. In: Nielsen L.A., Johnson D.L. (eds.) Fisheries techniques. American Fisheries Society, Blacksburg Virginia.
• Tsikliras A.C., Antonopoulou E., Stergiou K.I. 2010. Spawning period of Mediterranean marine fishes. Reviews in Fish Biology and Fisheries 20 (4): 499–538.
• Wijeyaratne M.J.S., Costa H.S. 1986. On the biology of an estuarine population of grey mullet, Mugil cephalus L., in Negombo Lagoon, Sri Lanka. Cybium 10 (4): 351–363.
• Wootton R.J. 1979. Energy costs of egg production and environmental determinants of fecundity in Teleost fishes. Symposia of the Zoological Society of London 44: 133–159.
• Yashouv A., Berner-Samsonov E. 1970. Contribution to the knowledge of eggs and early larval stages of mullets (Mugilidae) along the Israeli coast. Bamidgeh 22 (3): 72–89.
• Zar J.H. 1984. Biostatistical analysis. 2nd edn. Prentice Hall Inc., Englewood Cliffs.