… around the south em Gulf of Mexico (Bonfil et al., 19881, and was … than the world average
of 0.7% reported by Bonfil … the management of In Mexico, as in many other countries (Bonfil, …

Despite substantial similarities in embryological, cellular and molecular biology features,
human and mouse prostates differ in organ morphology and tissue architecture. Thus, a clear …

c-kit is a classical proto-oncogene that encodes a receptor tyrosine kinase (RTK) that responds
to stem cell factor (SCF). C-KIT signaling is a critical regulator of cell proliferation, survival…

Concomitant resistance to a second tumor implant was induced in both conventional and
nude BALB/c mice by two non immunogenic syngeneic tumors of spontaneous origin, an …

Serum from mice bearing five weakly immunogenic or nonimmunogenic tumors inducing
concomitant resistance exhibited a growth-inhibitory activity on in vitro proliferation of the tumor …

The large-scale spatial dynamics and population structure of marine top predators are poorly
known. We present electronic tag and photographic identification data showing a complex …

Effective ocean management and the conservation of highly migratory species depend on
resolving the overlap between animal movements and distributions, and fishing effort. …

347 and deployment of more selective and less damaging fishing technologies. Finally,
EBFM must manage target species in the context of the overall state of the system, habitat, …

The impact of fishing on chondrichthyan stocks around the world is currently the focus of
considerable international concern. Most chondrichthyan populations are of low productivity …

Major world fisheries for elasmobranchs are described in regard to their importance, recent
trends, problems for assessment and management, conservation and the outlook for their …