Sci. Mar. 61(3): 1997

RESEARCH ARTICLES

Two electrophoretic morphs of the ectoparasite copepod Chondracanthus psetti Kroyer, 1863 (Copepoda: Chondracanthidae) in the small-eyed flatfish Paralichthys microps (Pisces: Paralichthyidae) L. Troncoso, R. Riffo, R. Galleguillos and F. Cerda Sci. Mar. 61(3) : 285-290

Variabilidad genética en peces demersales: Distribución en profundidad versus restricciones filogenéticas C. Oyarzún, R. Galleguillo and J. Monsalves Sci. Mar. 61(3) : 291-296

Evaluation of three length-based methods for estimating growth in tropical fishes: The red snapper Lutjanus campechanus of the Campeche Bank (Mexico) C. Leonce-Valencia and O. Defeo Sci. Mar. 61(3) : 297-303

Description of a rare isopod crustacean, Arcturella poorei sp. nov. (Isopoda: Valvifera: Arcturidae), from the Atlantic seaboard of Cadiz (Iberian Peninsula) J. Castelló Sci. Mar. 61(3) : 305-311

Nematocyst analysis of Cyanea capillata and Cyanea lamarckii (Scyphozoa, Cnidaria) C. Östman and J. Hydman Sci. Mar. 61(3) : 313-344

Distribution and age structure of mackerel (Scomber scombrus, L.) and horse mackerel (Trachurus trachurus, L.) in the northern coast of Spain, 1989-1994 B. Villamor, P. Abaunza, P. Lucio and C. Porteiro Sci. Mar. 61(3) : 345-366

Biometric relationships of the red shrimp, Aristaeomorpha foliacea Risso 1827, in the Strait of Sicily (Mediterranean Sea) S. Ragonese, F. Bertolino and M.L. Bianchini Sci. Mar. 61(3) : 367-377

Atmospheric pressure variations and water mass exchange between the continental shelf and the Bay of Cadiz M. Bruno, B. Fraguela, J.J. Alonso, A. Ruíz-Cañavate, R. Mañanes and J. Rico Sci. Mar. 61(3) : 379-387

Morphometric and biological data on Ancistrocheirus lesueurii (Orbigny, 1842) from the middle-eastern Mediterranean Sea G. D'Onghia, P. Maiorano and A. Tursi Sci. Mar. 61(3) : 389-396

Measurement of bacterial size via image analysis of epifluorescence preparations: description of an inexpensive system and solutions to some of the most common problems R. Massana, J.M. Gasol, P.K. Bjørnsen, N. Blackburn, Å. Hagström, S. Hietanen, B.H. Hygum, J. Kuparinen and C. Pedrós-Alió Sci. Mar. 61(3) : 397-407

Population characteristics of the neustonic isopod Idotea metallica (Crustacea, Isopoda, Idoteidae) in the western Mediterranean (June 1993) P. Abelló and R.J. Frankland Sci. Mar. 61(3) : 409-414