Desenvolvimento larval inicial de Helostoma temminckii Cuvier & Valenciennes (Helostomatidae, Perciformes)

Initial larval development of Helostoma temminckii Cuvier & Valenciennes (Helostomatidae, Perciformes)

Helostoma temminckii; kissing gourami; larval development

Desenvolvimento larval inicial de Helostoma temminckii Cuvier & Valenciennes (Helostomatidae, Perciformes)

Initial larval development of Helostoma temminckii Cuvier & Valenciennes (Helostomatidae, Perciformes)

Wilson Treger Zydowicz de Sousa; William Severi

Laboratório de Ictiologia, Departamento de Pesca, Universidade Federal Rural de Pernambuco. Avenida Dom Manuel de Medeiros 68, Dois Irmãos, 52171-900 Recife, Pernambuco, Brasil. E-mail: [e-mail]

ABSTRACT

This work presents the characterization of larval external morphology of the kissing gourami Helostoma temminckii, an aquarium fish of the family Helostomatidae, reared all over the world. A total of 38 larvae (standard length between 3.2 and 10.1 mm), obtained through natural reproduction carried out in the Fish Culture Station of the Federal Rural University of Pernambuco, were used. The morphometric measurements pre-dorsal, pre-pectoral and pre-anal distances, and body height varied positively with standard length, and body proportions varied between 30.8 and 51.2%; 12.9 and 37.9%; 38.2 and 58.3%, and 17.2 and 30.43% CP, respectively. The eye diameter varied positively with the length of the head (CC), but its body proportion decreased with growth, varying between 63.3 and 30.2% CC, within fish lenghts from 3.2 to 10.1 mm, respectively. The external morphological characterization of larvae with 3.9, 6.6, 7.7, 8.0 and 10.1 mm CP are presented, showing the notochord flexion (CP between 5.5 and 6.8 mm), the appearance of rays and formation of the caudal (CP between 5.5 and 7.5 mm), dorsal (CP above 7.5 mm), anal (larger than 7.5 mm CP) and pectoral fins (larger than 8 mm CP); the modification of body shape and pigmentation absence. Larvae with 10.1 mm CP don't show completely developed dorsal and anal fins, with their definitive number of rays. The opening of mouth and anus, and reduction of the yolk-sac were observed in larvae with CP between 6.5 and 7.5 mm. Such information is importam for larval rearing of the species, besides providing data for comparative ontogenic analysis of other Perciformes.

Key words:Helostoma temminckii, kissing gourami, larval development

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AGRADECIMENTOS. Agradecemos à Coordenação da Base de Piscicultura do Departamento de Pesca da UFRPE, pelo uso de suas instalações para a realização deste trabalho. Drs. Antônio Lisboa N. Silva (in memoriam) e Rosângela Lessa colaboraram na revisão do manuscrito.

Recebido em 29.I.1999; aceito em 22.VIII.2000.

• Ahlstrom, E.H. & H.G. Moser. 1976. Eggs and larvae of fishes and their role in systematic investigations and in fisheries. Rev. Trav. Inst. Pêch. Marit. 40(3):379-398.
• Axelrod, H.R. & L.P. Schultz. 1990. Handbook of tropical aquarium fishes. Neptune City, T.F.H. Pub.,4^thed., 718p.
• Blaxter, J.H.S. 1984. Ontogeny, systematics and fisheries. Amer. Soc. Ichthy. Herpet. Spec. Publ. (1):1-6.
• Houde, E.D. 1987. Fish early life dynamics and recruitment variability. Amer. Fish. Soc. Symposium 2:17-29.
• Johnson, G.D. 1984. Percoidei: development and relationships. Amer. Soc. Ichthy. Herpet. Spec. Pub. (1):464-498.
• Kendall Jr., A.W.; E.H. Ahlstrom & H.G. Moser. 1984. Early life history stages of fishes and their characters. Amer. Soc. Ichthy. Herpet. Spec. Pub. (1):11-22.
• Lasker, R. 1987. Use of fish eggs and larvae in probing some major problems in fisheries and aquaculture. American Fisheries Society Symposium 2:1-16.
• Lauder, G.V. & K.F. Liem. 1983. The evolution and interrelationships of the Actinopterygian fishes. Bull. Mus. Comp. Zool. 150(3):95-197.
• Leis, J.M. & T. Trnski. 1989. The larvae of Indo-Pacific shorefishes. Honolulu, Univ. Hawaii Press. 371 p.
• Lindsey, C.C. 1988. Factors controlling meristic variation, p. 197-274. In: J.D. Randall (Ed.). Fish physiology. New York, Academic Press, Vol. XIB.
• Moser, H.G.; W.J. Richards; D.M. Cohen; M.P. Fahay; A. W. Kendall Jr. & S.L. Richardson (Eds). 1984. Ontogeny and systematics of fishes. Amer. Soc. Ichthy. Herpet. Spec. Publ. (1):1-760.
• Nelson, J.S. 1994. Fishes of the world. New York, John Wiley and Sons, 3^rd ed., 600p.
• Richards, W.J. 1985. Status of the identification of the early life stages of fishes. Bull. Mar. Sci. 37(2):756-760.

Datas de Publicação

• Publicação nesta coleção
  08 Maio 2009
• Data do Fascículo
  Set 2000

Histórico

• Aceito
  22 Ago 2000
• Recebido
  29 Jan 1999