An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Micropterus salmoides; administrative management; breeding stock; cost effectiveness; fingerlings; hatcheries; lakes; microsatellite repeats; parentage; progeny; sport fishing; North Carolina
Abstract:
... Largemouth Bass Micropterus salmoides are the focus of a billion‐dollar (US$1 × 10⁹) recreational fishery in North America and are subject to widespread hatchery supplementation efforts. Parentage‐based tagging (PBT) uses genetic samples taken from hatchery broodstock to genetically “tag” offspring and represents a valuable approach to inform fisheries management and assess hatchery contributions ...
... Management agencies commonly stock Channel Catfish Ictalurus punctatus as advanced yearlings instead of fingerlings (age 0) to help reduce potential predation mortality despite uncertainty regarding the degree to which predation limits fingerling poststocking survival. To better understand whether fingerling survival during the first 7 d after stocking—when predation risk is likely greatest—could ...
Micropterus salmoides; Salmo salar; administrative management; baitfish; business enterprises; capital; catfish; economies of scale; energy; feed conversion; fingerlings; fish production; game fish; labor productivity; ponds; production technology; profitability; profits and margins; raceways; recirculating aquaculture systems; trout; variable costs; United States
Abstract:
... Aquaculture in the United States has grown at a slower rate than the rest of the world in spite of abundant resources to support its growth. Although regulatory costs have widely been cited as the cause, there has not been a comprehensive attempt to examine cost structures, productivity, and associated efficiencies across various species, production systems, and scales of production in the United ...
... Stock enhancement is a practiced management strategy for sustaining and rebuilding largemouth bass fisheries in Florida and throughout their native and introduced range. However, quantitative assessment comparing efficacy of stocking to traditional management approaches are rare. We adapt an age-structured population model that explicitly represents the size and density-dependent effects on mortal ...
... Supplemental stocking of hatchery Largemouth Bass Micropterus salmoides and Florida Largemouth Bass Micropterus salmoides floridanus (hereafter, Florida Bass) is a common practice around the world, but the results commonly do not meet expectations. Predation upon stocked fish and the inefficiency of stocked fish in capturing wild prey are common reasons for low poststocking survival rates of hatch ...
... There has been strong interest in the use of peracetic acid (PAA) in aquaculture as it can be used to disinfect water and hard surfaces and thereby eliminate or lower the burden of fish pathogens. Unfortunately, there has been little research on the toxicity of PAA to fish. Twelve species of fingerling fish that are important to aquaculture were exposed to PAA for 24 h in static toxicity bioassays ...
... The main objectives of this study were to approximate the maximum yield and evaluate size dispersion of stocker size largemouth bass, Micropterus salmoides reared in a semi‐closed recirculating system for 60 days. Fingerlings with an average body weight of 36.7 g were utilized for the study. An experimental system consisting of 18 square plastic tanks (165 L) equipped with a radial flow settler, a ...
... Supplemental stocking of fingerling or advanced fingerling Largemouth Bass Micropterus salmoides is a common management strategy for augmenting natural production in low-recruitment systems. Few studies, however, have evaluated the impact of stocking adult bass taken from donor lakes. Over a period of 6 years, University of Florida researchers stocked Florida Lakes Griffin and Dora with 24,781 wil ...
... Largemouth bass (LMB), Micropterus salmoides, are a highly desirable food fish especially among Asian populations in large cities throughout North America. The primary production method for food‐size LMB (>500 g) has been outdoor ponds that require two growing seasons (18 mo). Indoor, controlled‐environment production using recirculating aquaculture system (RAS) technologies could potentially redu ...
Micropterus salmoides; biomass; body weight; diet; dissolved oxygen; fingerlings; growth performance; juveniles; rearing; survival rate; water temperature
Abstract:
... This study evaluated the effects of biomass density on size variability and growth performance of feed‐trained largemouth bass, Micropterus salmoides, fingerlings in a semi‐closed recirculating system for 60 d. Average individual body weight and length of fingerlings were 9.04 g and 9.07 cm, respectively. Experimental biomass densities were set at 15, 20, 25, 30, 35, and 40 kg/m³. Water temperatur ...
Micropterus salmoides; adulthood; adults; alleles; fingerlings; lakes; wild fish
Abstract:
... We evaluated the reproductive contribution of stocked Largemouth Bass Micropterus salmoides relative to resident populations. The reproductive contribution of stocked fish was determined using the MDH-B2* allele as a genetic tag for fingerlings stocked into five study lakes. We first determined the relative survival of stocked fish by calculating the proportion of adults (which were clipped at sto ...
... Over 2 years, we examined the survival of stocked advanced fingerling Yellow Perch Perca flavescens involving over 16 stocking events in eight lakes in Nebraska. The survival of stocked fish was estimated with respect to both handling mortality during stocking and predation by Largemouth Bass Micropterus salmoides . Handling mortality during stocking was found to be zero, while Largemouth Bass con ...
... Largemouth bass (LMB) Micropterus salmoides fry do not accept prepared diets at first feeding. Fry are initially reared in fertilized ponds on natural live foods until large enough to be feed trained. Unpredictable weather patterns and depletion of natural forages can affect nursery pond survival. A series of experiments was conducted to investigate the use of Artemia nauplii prepared diets and op ...
Micropterus salmoides; bass; fingerlings; foods; industry; profits and margins; recirculating aquaculture systems
Abstract:
... Demand for food size and trophy largemouth bass, Micropterus salmoides, is steadily increasing. However, largemouth bass, a carnivorous species, are more difficult to feed habituate than other commercially produced fish. Improving current feed habituation techniques to increase the percentage of fingerlings successfully feed habituated would increase profits, productivity and efficiency, and avail ...
Micropterus salmoides; correlation; feeds; fingerlings; grower diets; photoperiod; protein energy ratio; satiety; tanks; water temperature
Abstract:
... We compared performance (growth, survival, condition, and health indices) of largemouth bass, Micropterus salmoides, fingerlings (10.3 g [SE ± 0.5 g] and 92 mm [SE ± 1 mm] total length) fed one of four commercial grower feeds: Purina Aquamax Grower 400 (PAG; PMI Nutrition International LLC), Bio-Oregon BioDiet Grower (BDG; Bio-Oregon), Silver Cup Steelhead (SCS; Silver Cup), and Richloam Bass Fry ...
Micropterus salmoides; bass; economic feasibility; feed conversion; feed intake; fingerlings; markets; production costs; stocking rate; survival rate; water temperature
Abstract:
... The effects of stocking density on food‐size largemouth bass (LMB), Micropterus salmoides, production (>0.5 kg) were evaluated in a 2‐yr study by stocking LMB fingerlings (mean weight = 57 g/fish) in 0.1‐ha earthen ponds at rates of 6175, 12,350, or 18,525 fish/ha. Gross yields increased from 3989 to 9096 kg/ha as stocking density increased. No significant differences were observed in survival rat ...
Micropterus salmoides; condition factor; correlation; feeds; fingerlings; food availability; photoperiod; protein composition; protein energy ratio; starter cultures; starter diets; stocking rate; tanks; water temperature; weaning
Abstract:
... We compared performance (growth, survival, and condition) of northern largemouth bass Micropterus salmoides salmoides fingerlings fed one of three commercial starter feeds: Otohime Marine Weaning (OMW; Marubeni Nisshin Feed), Bio-Oregon BiVita Fry (BVF; Bio-Oregon), and Purina Aquamax Starter (PAS; PMI Nutrition International LLC). Nine 833-L circular tanks, connected in parallel to a recirculatio ...
... During investigations of young-of-the year smallmouth bass (Micropterus dolomieu) mortalities in the Susquehanna River, Pennsylvania, U.S.A. and affected tributaries, raised areas were noted in the muscle in the vicinity of the caudal peduncle. The raised areas were caused by plasmodia of a myxozoan parasite. Spores found within plasmodia were similar to those of Myxobolus inornatus previously des ...