Reproductive Strategies of 'Raja Radiata, Raja Naevus, Raja Montagui and RajaClavata' in the North Sea

摘要

This paper compares the reproductive strategies of the starry ray (Raja radiataDonovan 1808), the cuckoo ray (R. Naevus Fowler 1910) and the thornback ray (R. clavata Linnaeus 1758), in relation to differences in their distribution and abundance in the North Sea. The investigation rays were caught in the North Sea in 1992.