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Fig. 6 | Helgoland Marine Research

Fig. 6

From: Growth and reproductive biology of the sea star Astropecten aranciacus (Echinodermata, Asteroidea) on the continental shelf of the Catalan Sea (northwestern Mediterranean)

Fig. 6

Photomicrographs of A. aranciacus testes showing different gonadal stages: a Stage I, Recovery; b, c Stage II, Growing; d Stage III, Mature; e Stage IV, Partly Spawned; f Stage V, Spent. hf hemal invaginations, hs hemal sinus, lu lumen, sc spermatogenic columns, sp spermatogonia, sm spermatids, s spermatozoa, rs residual spermatozoa, np nutritional phagocytes. Scale bars 50 µm

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Helgoland Marine Research

ISSN: 1438-3888

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