Sci. Mar. 68(2): 2004

RESEARCH ARTICLES

Population dynamics and production of Streblospio benedicti (Polychaeta) in a non-polluted estuary in the Basque coast (Gulf of Biscay) Loreto García-Arberas and Ana Rallo Sci. Mar. 68(2) : 193-203

Ontogenetic radular variation in species of Tambja Burn, 1962 (Gastropoda, Opisthobranchia, Polyceratidae), from the eastern Atlantic Ocean and Mediterranean Sea Amelia Ocaña, Luis Sánchez-Tocino and Francisco J. García Sci. Mar. 68(2) : 205-210

Morphometry, growth and reproduction of an Atlantic population of the razor clam Ensis macha (Molina, 1782) Pedro J. Barón, Luciano E. Real, Néstor F. Ciocco and M.E. Ré Sci. Mar. 68(2) : 211-217

Physiological responses and scope for growth of Ruditapes decussatus from Ria Formosa, southern Portugal, exposed to increased ambient ammonia P. Sobral and S. Fernandes Sci. Mar. 68(2) : 219-225

Spatial-temporal changes in dimethyl acetal (octadecanal) levels of Octopus vulgaris (Mollusca, Cephalopoda): relation to feeding ecology Rui Rosa; A.M. Marques, M.L. Nunes, N. Bandarra and C. Sousa Reis Sci. Mar. 68(2) : 227-236

Benthic decapod crustaceans associated with captures of Munida spp. (Decapoda: Anomura) in the Beagle Channel, Argentina P. Pérez-Barros, F. Tapella, M.C. Romero, J.A. Calagno and G.A. Lovrich Sci. Mar. 68(2) : 237-246

Feeding ecology of Parapenaeus longirostris (Lucas, 1846) (Decapoda: Penaeidae) from the Ionian Sea (Central and Eastern Mediterranean Sea) Kostas Kapiris Sci. Mar. 68(2) : 247-256

Effects of wave action on nesting activity in the littoral five-spotted wrasse, Symphodus roissali, (Labridae), in the northwestern Mediterranean Sea Nuria Raventós Sci. Mar. 68(2) : 257-264

Studies on some reproductive aspects of Pseudotolithus elongatus in Cross River estuary, Nigeria S.B. Ekanem, M.N. Achima and M.M: Ekere Sci. Mar. 68(2) : 265-271

Age, growth and mortality of Hake larvae (Merluccius hubbsi) in the north Patagonian shelf Daniel Brown, E. Leonarduzzi and L. Machinandiarena Sci. Mar. 68(2) : 273-283

Biology of the Sanzo's goby, Lesueurigobius sanzoi (de Buen, 1918), off Cabo Raso, Portugal C. Paulo-Martins, P.L. Cunha and P.R. Almeida Sci. Mar. 68(2) : 285-294

Behaviour of Southern sea lions in presence of killer whales during fishing operations in Central Chile Luis Hückstädt and Tarsicio Antezana Sci. Mar. 68(2) : 295-298

NEWS & COMMENTS

Scope of the Spanish Marine Sciences National Programme from 1995 to 2003 Beatriz Morales-Nin and Pilar Sánchez-Fernández Sci. Mar. 68(2) : 299-304

BOOK REVIEWS

The sardine (Sardinella aurita), its environment and exploitation in Eastern Venezuela. P. Fréon and J. Mendoza Ana Sabatés Sci. Mar. 68(2) : 305-306

OBITUARY

Obituary: Ramon Margalef (1919-2004) Pere Abelló Sci. Mar. 68(2) : 191-192