Scientia Marina, Vol 70, No 4 (2006)

New contribution to the reproductive features of bluemouth Helicolenus dactylopterus dactylopterus from northeast Atlantic (Azores Archipelago)


https://doi.org/10.3989/scimar.2006.70n4679

Ana Mendonça
Departamento de Oceanografia e Pescas, Universidade dos Açores, Cais de Santa Cruz, Horta , Portugal

Eduardo Isidro
Departamento de Oceanografia e Pescas, Universidade dos Açores, Cais de Santa Cruz, Horta , Portugal

Gui Menezes
Departamento de Oceanografia e Pescas, Universidade dos Açores, Cais de Santa Cruz, Horta , Portugal

Mário Rui Pinho
Departamento de Oceanografia e Pescas, Universidade dos Açores, Cais de Santa Cruz, Horta , Portugal

Octávio Melo
Departamento de Oceanografia e Pescas, Universidade dos Açores, Cais de Santa Cruz, Horta , Portugal

Susana Estácio
Direcção Regional das Pescas dos Açores, Horta , Portugal

Abstract


This work describes and identifies the macroscopic and corresponding microscopic changes of the gonads of an important commercial fish species, Helicolenus dactylopterus dactylopterus, from Azores Archipelago. The new contribution relates the macroscopic scale with the histological stages. The annual changes in the gonad, together with the analysis of the monthly gonadosomatic indices, and complementary observations with scanning electron microscopy, allow us to conclude that the females are internally inseminated between July and November and spawn between January and March. There is a separation between female and male reproductive cycles. The overall sex-ratio observed was 1:1, but seasonal and length related differences were observed. This suggests differences and changes in availability, probably related to the annual reproductive cycle and changes in feeding behaviour


Keywords


Helicolenus dactylopterus dactylopterus; northeast Atlantic; reproduction; histology; maturity stages

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References


Allain, V. and P. Lorance. – 2000. Age estimation and growth of some deep-sea fish from the Northeast Atlantic Ocean. Cybium, 24(3) suppl.: 7-16.

Costa, A.C. and P.R. Chaves. – 1943. Manual de técnica histológica. Portugália, Lisboa.

Estácio, S., A. Mendonça, H.M. Krug, G.M. Menezes, J. Branco and M.R. Pinho. – 2001. Aspects of the reproduction of six demersal species captured in the Azores archipelago. Arquipélago, Life Mar. Sci., 2B: 83-94.

Eschmeyer, W.N. – 1969. A systematic review of the scorpion fishes of the Atlantic Ocean (Pisces:Scorpaenidae). Occ. Papers Calif Acad. Sci., 79: 1-130.

Esteves, E., J. Aníbal, H.M. Krug and H.M. Silva. – 1997. Aspects of age and growth of bluemouth, Helicolenus dactylopterus dactylopterus (Delaroche, 1809) from the Azores. Arquipélago. Life M. Sci., 15A: 83-95.

González, J.A., V. Rico, J.M. Lorenzo, S. Reis, M. Afonso Dias, A. Mendonça, H.M. Krug and M. Pinho. – 2003. Sex and reproduction of the alfonsino Beryx splendens (Pisces, Berycidae) from the Macaronesian archipelagos. J. Appl. Ichthyol., 19(2): 104-108. doi:10.1046/j.1439-0426.2003.00358.x

Holden, M.J. and D.F.S. Raitt. – 1974. Manual of Fisheries Science, Part 2 - Methods of Resource Investigation and their Application. FAO, Rome. Anon. – 2004. Report of the Working Group on the Biology and Assessment of Deep Sea Fisheries Resources. ICES CM 2004/ACFM:15RefG, Copenhagen.

Isidro, E. J. – 1989. Crescimento e reprodução de Helicolenus dactylopterus (Delaroche, 1809). Relatório no âmbito das Provas de Aptidão de Acesso à categoria de Assistente de Investigação, Universidade dos Açores (Departamento de Oceanografia e Pescas), Horta, Faial, Açores.

Kelly C.J., P.L. Connoly, and J.J. Bracken. – 1999. Age estimation, growth, maturity, and distribution of the bluemouth rockfish Helicolenus d. dactylopterus (Delaroche, 1809) from the Rockall Trough. ICES J.Mar. Sci., 56: 61-74. doi:10.1006/jmsc.1998.0426

King, M. – 1995. Fisheries Biology, Assessment and Management. Fishing News Books, Blackwell Scientific Ltd, Oxford, England.

Krug, H.M. – 1995. Biologia e avaliação do stock açoreano de goraz, Pagellus bogaraveo. Ph. D. thesis, Univ. of the Azores, Portugal.

Menezes, G. – 2003. Demersal Fish Assemblages in the Atlantic Archipelagos of the Azores, Madeira, and Cape Verde. Ph. D. thesis, Univ. of the Azores, Portugal.

Muñoz, M., M. Casadevall and S. Bonet. – 1999. Annual reproductive cycle of Helicolenus dactylopterus dactylopterus (Teleostei:Scorpaeniformes) with special reference to the ovaries sperm storage. J. Mar. Biol. Assoc. U.K., 79: 521-529. doi:10.1017/S0025315498000642

Muñoz, M., M. Casadevall, S. Bonet and I. Quagio-Grassiotto. – 2000. Sperm storage structures in the ovary of Helicolenus dactylopterus dactylopterus (Teleostei:Scorpaeniformes): an ultrastructural study. Env. Biol. Fishes, 58: 53-59. doi:10.1023/A:1007648111239

Muñoz, M. and M. Casadevall. – 2002a. Reproductive indices and fecundity of Helicolenus dactylopterus dactylopterus (Teleostei:Scorpaeniformes) in the Catalan Sea (Western Mediterranean). J. Mar. Biol. Assoc. U.K., 82: 995-1000. doi:10.1017/S0025315402006513

Muñoz, M., M. Casadevall and S. Bonet. – 2002b. Gametogenesis of Helicolenus dactylopterus dactylopterus (Teleostei: Scorpaeniformes). Sarsia, 87: 119-127. doi:10.1080/003648202320205193

Muñoz, M., Y. Koya and M. Casadevall. – 2002c. Histochemical analysis of sperm storage in Helicolenus dactylopterus dactylopterus (Teleostei:Scorpaeniformes). J. Exp. Zool., 292: 156-164. doi:10.1002/jez.1151 PMid:11754031

Pinho, M. R. – 2003. Abundance estimation and management of Azorean demersal species. Ph. D. thesis, Univ. of the Azores, Portugal.

Sequeira, V., I. Figueiredo, M. Muñoz and L.S. Gordo. – 2003. New approach to the reproductive biology of Helicolenus dactylopterus. J. Fish Biol., 62: 1206-1210. doi:10.1046/j.1095-8649.2003.00063.x

Silva, H.M., H.M. Krug and G.M. Menezes. – 1994. Bases para a Regulamentação da Pesca de demersais nos Açores. Arquitos do DOP - Série Estudos (4/94), Universidade dos Açores.

Sobrinho-Gonçalves, L. and E. Isidro. – 2001. Fish larvae and zooplankton biomass around Faial island (Azores archipelago). A preliminary study of species occurrence and relative abundance. Arquipélago. Life Mar. Sci., 18A: 35-52.

White, D.B., D.M. Wyanski and G.R. Sedberry. – 1998. Age, growth, and reproductive biology of the blackbelly rosefish from the Carolinas, U.S.A. J. Fish Biol., 53: 1274-1291. doi:10.1111/j.1095-8649.1998.tb00248.x

Whitehead, P.J.P., M.L. Blanchot, J.C. Hureau, J. Nielsen and E. Tortonese. – 1989. Fishes of the North-eastern Atlantic and Mediterranean, UNESCO, volume III, Paris.

Zar, J.H. – 1999. Biostatistical Analysis. Fourth Edition. Prentice- Hall International Editions, New Jersey.




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