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Representative micrographs of male largemouth bass testicular stages. Male stages were classified based on the predominant stage and are as follows; A) IM- Immature or non-reproductive; B) EM- early sperm maturation; C) MM- mid sperm maturation (<50% of tissue = mature sperm); D) LM- late sperm maturation. Abbreviations are as follows; spermatocytes (SC), spermatogonia (SG), spermatids (SD), spermatozoa (SZ). Scale bars correspond to 50 μm (A–D).
