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Pond Production and Poststocking Survival of Large Fingerling Black Crappies in Florida
Author(s) -
Myers Randall A.,
Rowe James B.
Publication year - 2001
Publication title -
north american journal of aquaculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.432
H-Index - 41
eISSN - 1548-8454
pISSN - 1522-2055
DOI - 10.1577/1548-8454(2001)063<0045:ppapso>2.0.co;2
Subject(s) - biology , fish <actinopterygii> , hatchery , zoology , fishery
We cultured fingerling black crappies Pomoxis nigromaculatus in 0.4‐ha hatchery ponds in Florida to evaluate the level of production and estimated short‐term (24‐h) poststocking survival of fish stocked in Lake Lochloosa, Florida. Production of fingerling black crappies averaged 52,681 fish/ha but was highly variable across ponds (0–168,439 fish/ha). Mean total length (TL) of cultured fish varied across ponds (76–219 mm), averaged 105 (±41) mm, and was inversely related ( P = 0.005) to numbers of fish harvested. At the production level that we estimated (52,681 fish/ha), an average of 2 ha of hatchery pond space would be needed to culture a sufficient number of large fingerling black crappies (>76 mm TL) to stock a Florida lake of moderate size (2,000 ha) at 50 fish/ha. Short‐term survival of fingerling black crappies was estimated to range from 70% to 100%.