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Repeated copper sulfate treatments have no effect on growth and survival of juvenile Walleye N. Am. J. Aquac. (IF 1.0) Pub Date : 2024-03-14 Bradley D. Farmer, David L. Straus, J. Alan Johnson, Cynthia K. Ledbetter, Michael B. Deshotel
ObjectiveAn experiment was conducted to evaluate the effects of repeated copper sulfate (CuSO4) treatments on the growth and survival of juvenile Walleye Sander vitreus.MethodsCulture tanks were treated with 0 or 0.76 mg/L CuSO4 every other day for five exposures, then were not treated for 14 consecutive days; this regimen was repeated for a total of 10 exposures over the course of 50 days. Copper
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Density affects rearing performance of juvenile landlocked fall Chinook Salmon N. Am. J. Aquac. (IF 1.0) Pub Date : 2024-03-11 Alex J. Rosburg, Michael E. Barnes
ObjectiveDensity‐related information for landlocked fall Chinook Salmon Oncorhynchus tshawytscha shortly after first feeding is poorly understood. This study was undertaken to determine the effects of a range of rearing densities (low, intermediate, and high) on rearing performance and survival of newly feed‐trained juvenile landlocked fall Chinook Salmon.MethodsThe fish were reared for 66 days in
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Molecular mechanism of emodin in inhibiting the activity of Aeromonas hydrophila via AtpE N. Am. J. Aquac. (IF 1.0) Pub Date : 2024-02-21 Huimin Zhang, Jun Zhou, Xuguang Li, Yanfei Deng, Xianping Ge, Bo Liu
ObjectiveAeromonas hydrophila, a leading pathogen of aquatic organisms, poses a significant challenge in terms of effective and safe inhibition.MethodsThrough the method of experiments and molecular simulations, we discovered that emodin effectively inhibits the A. hydrophila via the binding of emodin with AtpE (ATP synthase subunit C). Bacterial inhibition experiments show that emodin effectively
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Initial investigations into the production of triploid sunshine bass using temperature shock N. Am. J. Aquac. (IF 1.0) Pub Date : 2024-02-09 David L. Straus, Jason W. Abernathy, Anita M. Kelly, Herbert E. Quintero, T. Mike Freeze, Ric S. Williams
The sunshine bass (female White Bass Morone chrysops × male Striped Bass M. saxatilis) is an important food fish raised in U.S. aquaculture. Spawning is performed by manually stripping and fertilizing White Bass eggs with Striped Bass sperm. Embryos hatch in approximately 48 h. Mature sunshine bass females can become fertile and produce viable eggs, which is problematic in commercial food-fish production;
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Using digestive physiology to develop larval culture protocols for the Blackbanded Sunfish, a threatened centrarchid native to the United States N. Am. J. Aquac. (IF 1.0) Pub Date : 2024-01-25 Casey A. Murray, Taylor N. Lipscomb, Amy L. Wood, Quenton M. Tuckett, Josh T. Patterson, Craig A. Watson, Matthew A. DiMaggio
The Blackbanded Sunfish Enneacanthus chaetodon is a small centrarchid that is endemic to slow-moving waters from New Jersey to central Florida, United States. The distribution of this species has been increasingly fragmented, primarily due to habitat degradation. The development of larval culture protocols is essential to produce this species for the aquarium trade and for potential restoration efforts
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Evaluation of in vitro and in vivo digestibility of potential feed ingredients for juvenile Yellowtail Snapper N. Am. J. Aquac. (IF 1.0) Pub Date : 2024-01-20 Alvaro Barreto, Martín Arenas, Alfonso Álvarez-González, Jaime Suárez-Bautista, Adolfo Sánchez, Carlos Maldonado, Gerard Cuzon, Gabriela Gaxiola
The carnivorous Yellowtail Snapper Ocyurus chrysurus has the potential for production in aquaculture. However, there is a lack of studies investigating the digestibility of ingredients needed to formulate balanced diets for this species.
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Nutritional value of torula yeast as an alternative protein feedstuff for hybrid Striped Bass (White Bass × Striped Bass) N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-12-25 Kequan Chen, Fernando Y. Yamamoto, Clement R. de Cruz, Delbert M. Gatlin
Two separate trials were conducted to evaluate the digestibility of a novel alternative ingredient, enhanced torula yeast (TY) Cyberlindnera jadinii, in diets for hybrid Striped Bass (HSB; White Bass Morone chrysops × Striped Bass M. saxatilis) and to evaluate graded inclusion levels of this product when replacing soybean products.
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The effects of estradiol-17β on the sex reversal, survival, and growth of Red Shiner and its use in the development of YY individuals N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-12-24 Chad N. Teal, Daniel J. Schill, Javan M. Bauder, Susan B. Fogelson, Kevin Fitzsimmons, William T. Stewart, Melanie Culver, Scott A. Bonar
The Red Shiner Cyprinella lutrensis is one of the most prolific and ecologically destructive invasive fish species in the southwestern United States. The production and release of YY individuals as Trojan sex chromosome carriers can theoretically eradicate invasive fish populations by eventually eliminating phenotypic females.
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Partial and total replacement of soybean meal with a corn-fermented protein product in Rainbow Trout feeds N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-12-20 John Grayson, Erica Curles, Michal Wojno, Karolina Kwasek
Corn-fermented protein products (CFP) from the bioethanol industry have strong potential as alternatives to traditional plant protein sources in finfish diets. This study examined the culture performance, apparent digestibility, intestinal histology, and expression of gut inflammation markers in juvenile Rainbow Trout Oncorhynchus mykiss fed experimental diets with graded levels of soybean meal and
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Antiparasitic effects of peracetic acid on Striped Bass infested with Trichodina spp. N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-12-14 Bradley D. Farmer, David L. Straus, Michael B. Deshotel, S. Adam Fuller, Benjamin J. Reading, Thomas Meinelt
The antiparasitic effect of peracetic acid (PAA) was evaluated against an infestation of the protozoan Trichodina spp. in naturally infected juvenile domestic seventh generation (F7) Striped Bass, Morone saxatilis. Replicated treatments (n=3) consisted of 1 and 2 mg/L PAA and a control; treatments were applied every other day for 3 treatments (30 min static exposure). Infestation intensity was enumerated
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First feeding of a marine ornamental fish, the White-barred Goby Amblygobius phalaena: Investigating the optimal initial live feed organisms and optimal feeding density N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-11-20 Pei-Sheng Chiu, Shine-Wei Ho, Jie Hsu, Cheng-Hsuan Huang, Yen-Chun Lee, Yu-Hung Lin
The White-barred Goby Amblygobius phalaena is a popular ornamental fish in the marine aquarium market. To achieve successful commercial production, efficient larval rearing techniques are crucial. Previous studies have achieved successful cultivation of White-barred Goby larvae by using a combination of three live feed organisms—the ciliate Euplotes sp., the rotifer Brachionus rotundiformis, and the
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Laboratory-bred Longfin Smelt produced offspring in the first year in captivity N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-11-20 Tien-Chieh Hung, Md. Moshiur Rahman, Levi S. Lewis, Ya-Chi Yang, Troy A. Stevenson, Karl L. Menard, Richard E. Connon, Heather Bell, Nann A. Fangue
This study aims to develop the culture methods for Longfin Smelt Spirinchus thaleichthys in a laboratory setting, achieving the first production of a fully captive second generation (F2). The objective includes understanding the critical factors influencing the breeding and maturation of this species in captivity, contributing to conservation efforts and potential revival of this threatened species
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Comparison of high-throughput sequencing methods for bacterial microbiota profiling in catfish aquaculture N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-11-15 Caitlin E. Older, Fernando Y. Yamamoto, Matt J. Griffin, Cynthia Ware, Taylor I. Heckman, Esteban Soto, Brian G. Bosworth, Geoffrey C. Waldbieser
Bacterial community profiling in aquaculture can be useful for monitoring environmental conditions that may lead to disease outbreaks, understanding the impact of dietary treatments on fish health, and identifying microbes that have potential as probiotics. Microbiota characterization is commonly performed with high-throughput sequencing using short-read platforms (i.e., Illumina) targeting variable
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Potential of Pseudomonas putida probiotic feed mixture for improving growth, immune response, and disease resistance in Nile Tilapia compared to Saccharomyces cerevisiae probiotic N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-11-06 Salah M. Aly, Noha I. ElBanna, Mohamed A. Elatta, Nashwa Abdel Razek, Asmaa O. El-Ramlawy, Mahmoud Mabrok, Mohamed Fathi
This study aimed to assess the effects of a potential probiotic feed mixture containing Pseudomonas putida, in comparison to a yeast product (Saccharomyces cerevisiae), on the growth, immune response, and protection against Aeromonas hydrophila infection in Nile Tilapia Oreochromis niloticus.
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Effects of broodfish sex ratio, broodfish stocking density, and postspawn broodfish holding-pond density on reproductive efficiency in pond-spawned Channel Catfish N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-11-02 Brian G. Bosworth, Geoffrey C. Waldbieser, Carole Engle, Ganesh Kumar
Three trials were conducted to determine the effects of broodfish management on reproductive efficiency of pond-spawned Channel Catfish Ictalurus punctatus.
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Digestibility of corn distiller's dried grains with solubles (DDGS) in practical feeds with phytase and xylanase treatment fed to Nile Tilapia N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-11-02 Thomas L. Welker, Wendy Sealey, Ronnie Tan
Distiller's dried grains with solubles (DDGS), a by-product of ethanol production from cereal grains, has seen limited use by fish feed manufacturers as an alternative protein source. Over the past 20 years, advances and greater uniformity in processing methods have improved the quality of DDGS and, likely, its digestibility by fish. Our objective was to reevaluate the digestibility of corn DDGS by
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The effect of fermented feed on intestinal, surrounding water, and sediment microbiomes of Eriocheir sinensis N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-10-30 Huan Wang, Tingshuang Pan, He Jiang, Guoqing Duan, Jun Ling
Fermented feed (FF) has several significant advantages in aquaculture. However, little is known about the characteristics of intestinal and environmental microbiota in Eriocheir sinensis. This study was conducted to elucidate the relationship between bacterial communities in the intestine of E. sinensis and the surrounding environment, and to compare the bacterial communities in FF and non-FF diet
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In silico evaluation of outer membrane protein S2 as a suitable vaccine candidate against Edwardsiella tarda infection of fish N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-10-30 Somanath Disha, Undiganalu Gangadharappa Yathisha, Mave Harshitha, Biswajit Maiti
Edwardsiella tarda, the agent responsible for edwardsiellosis, is one of the primary emerging pathogens in fish aquaculture. The disease leads to significant economic loss for the farmers. Development of effective vaccines can minimize the disease burden.
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Optimizing early weaning protocols for Burbot larvae N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-10-30 Moureen Matuha, Luke P. Oliver, Timothy J. Bruce, Kenneth D. Cain
This study aimed to minimize live prey usage and duration in Burbot Lota lota larval culture. Specifically, two trials were conducted to assess the viability of EZ Artemia (liquid Artemia replacement) and Gemma microparticulate diets as alternatives to traditional live feeds, investigating their impact on larval Burbot's growth and survival.
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Comparing the incidence of spontaneous autopolyploidy in wild and hatchery Lake Sturgeon N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-10-29 Kaitlynn A. Weisgerber, W. Gary Anderson
Living species of Acipenseriformes, sturgeons and paddlefishes, are characteristically polyploid, having more than two complete sets of chromosomes (>2n). They undergo spontaneous autopolyploidy, an unintentional one and a half times increase in genome size, more frequently than any other order of fish. For Lake Sturgeon Acipenser fulvescens, which are evolutionary octoploids (8n), spontaneous autopolyploidy
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Effects of ethylenediaminetetraacetic acid on growth and survival of long-spined sea urchin Diadema antillarum larvae N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-10-16 Md Mahbubul Hassan, Aaron R. Pilnick, Joshua T. Patterson
The presence of heavy metals in seawater is a major challenge for hatchery culture of sea urchin larvae due to their sensitivity to metal pollution. The impact of heavy metals in seawater for sensitive marine larviculture could be minimized via chelation of metals using chemical compounds such as ethylenediaminetetraacetic acid (EDTA).
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Partial dietary fishmeal replacement with soy products in grow-out-stage Burbot N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-10-16 Luke P. Oliver, Timothy J. Bruce, Sinem Gulen, Evan M. Jones, Brent M. Vuglar, Michael L. Brown, Kenneth D. Cain
The primary objective of this study was to determine how soy products affect Burbot Lota lota maculosa growth and gastric evacuation. The secondary objective was to determine the digestibility of common soy products in Burbot.
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Effect of replacing fish meal with chicken gut meal on growth, immune parameters, and metabolism of juvenile Fat Greenling Hexagrammos otakii N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-10-15 Yixin Gu, Tingting Peng, Qian Sun, Qianliang Dai, Yanchao Wei, Wenyuan Hua, Yue Wang, Bojin Chen, Zhuang Xue, Wei Wang
Chicken gut meal (CGM) is reasonably priced and rich in nutrients and can become a new source of protein in the diets of major aquatic products, such as fish and shrimp.
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The impact of cottonseed meal condition on water quality, zooplankton densities, and sunshine bass production when used as an organic fertilizer in ponds N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-10-15 David I. Prangnell, Bryan J. Norris, Ryan R. Fontana, Mignon D. Fitzpatrick
Cottonseed meal is applied to sunshine bass (female White Bass Morone chrysops × male Striped Bass M. saxatilis) fry rearing ponds as an organic fertilizer to stimulate plankton development. The efficacy of cottonseed meal as a fertilizer following long-term storage and degradation is unknown. The use of degraded and undegraded cottonseed meal were compared during the production of sunshine bass fingerlings
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Performance of Striped Bass reared at mid-Atlantic and Gulf coast photothermal regimes N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-10-13 Linas W. Kenter, David L. Berlinsky
Investigate Striped Bass Morone saxatilis growth in different photothermal environments and generate an interest in strain-specific broodstock development for marine net-pen culture.
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U.S. hybrid Striped Bass and Red Drum farms: Economic effects of the U.S. regulatory framework N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-10-10 Carole R. Engle, Jonathan van Senten
Hybrid Striped Bass (HSB) and Red Drum Sciaenops ocellatus (known commercially as redfish) are important commercial sectors of foodfish production in the USA. The objective of this study was to measure the regulatory compliance burden on U.S. HSB and Red Drum farms.
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No effect of stocking density on the survival or size of late-stage Delta Smelt larvae reared in a small-scale culture system N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-10-10 Yi-Jiun Jean Tsai, Luke Ellison, Troy Stevenson, Evan W. Carson, Tien-Chieh Hung
A small-scale culture system effective in producing larvae of endangered Delta Smelt Hypomesus transpacificus was recently developed to facilitate conservation and research efforts.
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Evaluation of cannibalism during hatchery rearing of tiger muskellunge crosses N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-09-30 Robert Shields, Skylar Wolf, Connor Schwepe
Juvenile tiger muskellunge (Northern Pike Esox lucius × Muskellunge E. masquinongy) are cannibalistic, which can lead to a substantial reduction in yields within an intensive culture environment. Utah hatcheries have traditionally raised the female Northern Pike × male Muskellunge cross, and hatchery managers are reluctant to raise the female Muskellunge × male Northern Pike due to a perceived difference
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Ultraviolet light differentially reduces viability of fish- and fish farm-associated flavobacteria (families Flavobacteriaceae and Weeksellaceae) N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-09-30 Christopher Knupp, Mohamed Faisal, Travis O. Brenden, Esteban Soto, Benjamin R. LaFrentz, Matt J. Griffin, Gregory D. Wiens, Wade Cavender, Danielle Van Vliet, Thomas P. Loch
Globally, flavobacteria (family Flavobacteriaceae and Weeksellaceae) are leading causes of disease-related losses in fish-farms and hatcheries. One route flavobacteria gain access to aquaculture facilities is via source water. Ultraviolet (UV) light treatment of source water has been effective in reducing the risk of disease outbreaks caused by nonflavobacteria; however, the UV dose required to inactivate
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Improved fecal particle size profile in Rainbow Trout fed feeds containing different ratios of animal meal and plant protein concentrates: Effect on nitrogen and phosphorus partitioning N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-09-29 Thomas L. Welker, Frederic T. Barrows
Our objective in this study was to evaluate the effects of fish meal replacement with plant and animal protein sources accompanied by a feed binder on nitrogen (N) and phosphorus (P) partitioning in Rainbow Trout Oncorhynchus mykiss feces.
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Influence of broodstock nutrition on egg quality and fatty acid composition in California Yellowtail N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-09-28 Li Sun Chin, Sahar Mejri, Paul S. Wills, Kevin Stuart, Mark Drawbridge
California Yellowtail (CYT) Seriola dorsalis are continuous spawners and rely entirely on their diet to supply nutrients like fatty acids (FAs) to their eggs to support early development. The objective of this study was to determine whether commercial diets could replace a diet consisting of fresh fishery products (FFP-D) without compromising egg quality and biochemical composition, specifically FAs
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Survival and Growth in Multiple Size-Classes of Hatchery Red Drum over Three Simulated Seasons N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-08-16 Jillian L. Swinford, Joel D. Anderson
The Texas Parks and Wildlife Department's (TPWD) Marine Stock Enhancement Program has introduced an average of 20 million fingerling Red Drum Sciaenops ocellatus into bays across Texas annually since 1983. Red Drum fingerlings are released during seasons outside of wild juvenile Red Drum recruitment, exposing them to conditions that they would not normally encounter as early stage juveniles in the
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Examination of Muskellunge overwinter survival and growth in an earthen extensive culture pond N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-08-07 Keith D. Koupal, Marcus Miller, Melissa R. Wuellner
Track cohort survival, individual growth, and PIT tag retention, as well as relative growth rate, from fall to the following spring for age-0 Muskellunge Esox masquinongy held in an extensive culture pond.
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Effect of Copepod (Apocyclops dengizicus) Addition on Growth, Survival and Proximate Composition of Macrobrachium rosenbergii Postlarvae Cultured in Brackish Water Biofloc System N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-07-25 Md. Eilious Hosain, S. M. Nurul Amin, Aziz Arshad, Mohd Salleh Kamarudin, Murni Karim, Shamarina Shohaimi, Md. Niamul Naser, Nicholas Romano
The effects of periodically adding the cyclopoid copepod, Apocyclops dengizicus, (every four days at a rate of 4 individuals/mL) with biofloc technology (BFT-C) was compared with conventional BFT (without copepod) or a clear-water control on the survival, growth, proximate composition, and economics of Macrobrachium rosenbergii postlarvae nursery culture. Water quality and biofloc proximate composition
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Tank color influence on the Tomato Clownfish Amphiprion frenatus metamorphosis N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-07-25 Tania Maria Lopes dos Santos, Elen Monique de Oliveira Sousa, Monica Yumi Tsuzuki, Leonardo José Gil Barcellos, Alex Pires de Oliveira Nuñer
The color of the environment positively influences the development of some fish species. Thus, we evaluated whether different aquarium colors affected the metamorphosis process of Tomato Clownfish Amphiprion frenatus.
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Influence of Channel Catfish and Channel × Blue Catfish Hybrids on Myxozoan Community Composition in Catfish Aquaculture Ponds N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-06-26 Justin M. Stilwell, Alvin C. Camus, Cynthia Ware, Charles M. Walker, James B. Stanton, John H. Leary, Lester H. Khoo, David J. Wise, Geoffrey C. Waldbieser, Matt J. Griffin
The myxozoan Henneguya ictaluri is cited as the cause of proliferative gill disease (PGD) in Channel Catfish Ictalurus punctatus and Channel × Blue Catfish I. furcatus hybrids. Differences in host susceptibility result in decreased transmission rates, reduced sporogenesis, and lesser incidence of PGD in hybrid catfish. In experimental pond trials, continuous monoculture of hybrid catfish suppressed
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Is Chemical Control for Crayfish in Hatchery Fish Shipments Practical? N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-06-16 Ann L. Allert, Daniel J. Westrich, David W. Whites, Katrina K. Knott, Nathan Storts, Robert J. DiStefano
Invasive crayfish (family Cambaridae) displace native crayfish species and alter aquatic habitat, community structure, and ecosystem function. We evaluated whether chemical control can be a reliable control agent for crayfish to ensure that shipments from fish hatcheries did not result in new infestations of invasive crayfish. A series of acute (≤1 h) toxicity tests were conducted to evaluate the toxicity
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Efficacy of different wet feeds on the growth performance of mud crab Scylla serrata during fattening in cages N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-06-12 Naveen Nivas, Dinesh Kaippilly, Ayyaru Gopalakrishnan
Mud crab culture/fattening is a lucrative business with high profit margins because they have high economic and export value. Compared with shrimp culture, crab fattening has many advantages such as a short production cycle, high tolerance to poor water quality, rapid growth rates in captivity, etc. Currently, cheap commercial feed for crabs is unavailable, so raw feeds such as low-value fishes have
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Formulated feeds prolong the reproductive period of a cultured echinoid N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-06-07 Emily M. Warren, Lyanne J. F. Curtis, Stephen F. Cross, Stefanie D. Zaklan Duff, Christopher M. Pearce
The production of echinoid larvae and juveniles is required in both wild-population enhancement programs and full life-cycle culture. Many echinoid species of commercial interest spawn only once or twice a year, however, restricting temporal access to viable broodstock. High-energy/high-protein formulated feeds have been used for gonad enhancement of a variety of echinoid species, but the goal of that
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Dietary Saccharomyces cerevisiae improves survival after thermal and osmotic challenge during sexual reversal of postlarval Nile Tilapia N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-06-07 Miguel Faust, Marco Shizuo Owatari, Maria Vitoria Santos de Almeida, Ariane Leite dos Santos, Wellington Martins, Luiz Rodrigo Mota Vicente, Adolfo Jatobá
This study aimed to evaluate the stress resistance and growth performance of postlarval Nile Tilapia Oreochromis niloticus that were fed a diet supplemented with the yeast Saccharomyces cerevisiae as a probiotic.
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Zebrafish Danio rerio exhibit positive growth profiles when fed dietary yeast and bacterial-based single-cell protein as a replacement for fish protein hydrolysate N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-06-07 Michael B. Williams, Addison L. Lawrence, Sophie B. Chehade, Yuan Yuan, Adele L. Fowler, Robert J. Barry, Mickie L. Powell, Stephen A. Watts
The value of Zebrafish Danio rerio as a preclinical biomedical model has increased as nutritionally complete diets are being developed. Consequently, nutrients and nutrient sources can be used in evaluating the health status of Zebrafish, providing information that can be translated to human health. We have investigated the impact of commercially produced bacterial (MRD-Pro) and yeast (DY-Pro) single-cell
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Comparative analysis of hemato-biochemical profile, growth performance, and body composition of Common Carp cultured under different feed and habitats (biofloc technology and earthen pond systems) N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-06-06 Syed Sikandar Habib, Aima Iram Batool, Muhammad Fayyaz Ur Rehman, Saira Naz
In the current study, a 4-month experiment was conducted to investigate how two regularly used commercial feeds and two different environments (pond and biofloc systems) influence the haemato-biochemical profile of Common Carp Cyprinus carpio.
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Assessment of Dermo Perkinsus marinus in the “Southern Oyster” from a High-Salinity Environment N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-06-02 D. Ammons, D. Gonzalez, M. T. Lu, J. Rampersad
The prevalence and intensity of dermo Perkinsus marinus were examined in the eastern oyster Crassostrea virginica “southern oyster” population within the high salinity (35‰ or greater) waters of South Texas' lower Laguna Madre (LLM). During 2017, 192 oysters from four collection sites (approximately 111 km2 study area) were examined via culture for the presence of Perkinsus hypnospores. Additionally
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Effect of Brooder Age and Size on Fry Size Variation in Channel Catfish N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-04-07 Brian D. Ott, Brian G. Bosworth, Eugene L. Torrans, Geoffrey C. Waldbieser
Variation in harvest size of ictalurid catfishes can be problematic for both catfish producers and processors, ultimately reducing profitability for both. Although harvesting and grading techniques can reduce this variation, the biological underpinnings of these size discrepancies remain unknown. Fry from Channel Catfish Ictalurus punctatus brooders that were 2–5 years old were measured to determine
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Benzoic Acid Inclusion Effects on Health Status and Growth Performance of Juvenile Pacific White Shrimp Penaeus vannamei N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-04-05 Mariany Loya-Rodríguez, Daniel Alberto Palacios-González, Rodolfo Lozano-Olvera, Irma Eugenia Martínez-Rodríguez, Ana Carmela Puello-Cruz
Organic acids and their salts are used as additives in aquafeeds, as their participation in some metabolic pathways and energy generation in organisms increases the nutritional value. Benzoic acid (BA; C6H5-COOH), a white crystalline substance with a chemical structure that contains carboxylic acid attached to a benzene ring, is naturally found in plant and animal tissues. It is one of the most used
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Biofiltration Reactivation Kinetics of a Cyclobio Fluidized Sand Filter in a Warmwater Recirculating Aquaculture System N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-04-05 Timothy J. Pfeiffer, Brian D. Ott
The ability of a commercial-scale Cyclobio fluidized sand filter was evaluated for ammonia and nitrite removal by dosing with ammonia chloride, NH4Cl, as part of the water treatment unit for the U.S. Department of Agriculture Agricultural Research Service Warmwater Aquaculture Research Unit's (WARU) catfish hatchery in Stoneville, Mississippi, USA. Treatment system water was recirculated through the
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Influence of Environmental Variables on Catch of Walleye Broodfish for Propagation Efforts N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-03-18 Lucas K. Kowalewski, Michael A. Parr, Ben C. Neely
Walleye Stizostedion vitreum support recreational fisheries throughout their range but increasingly require annual stockings to maintain populations. In many areas of their distribution, Walleye broodfish are collected annually and manually spawned onsite before fertilized eggs are transported to fish culture facilities for rearing. As such, efficiency of these programs is reliant on effective capture
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Estimation of Additive and Dominance Genetic Variances for Growth and Multiple-stress at Different Ages in Litopenaeus vannamei N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-03-04 Lun Wang, Jinjiao Wang, Jianyong Liu
This study aimed to estimate the additive and dominance genetic variance in growth and multiple stress-tolerance traits in 7 week and 15 week Litopenaeus vannamei shrimp. Four different animal models were studied by including all or different subsets of the following effects: additive genetic effects (A), additive genetic and common environmental effects (A+C), additive genetic and dominance effects
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Toxicity of Copper Sulfate to Largemouth Bass Fry in Naturally Soft Water N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-03-06 David L. Straus, Cynthia K. Ledbetter, Bradley D. Farmer, Michael B. Deshotel, David L. Heikes
The use of copper sulfate pentahydrate (herein, designated CuSO4) for fungus control on fish embryos is extremely effective and economical for farmers in waters with moderate or high alkalinity/hardness; however, fry toxicity in low alkalinity/hardness waters is a concern. The present study determined the acute toxicity of CuSO4 to Largemouth Bass Micropterus salmoides in naturally soft water (42 mg/L
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Effects of Fish Meal Replacement with Composite Mixture of Soybean Protein Hydrolysates and Other Plant Proteins on Growth Performance, Antioxidant Capacity, and Target of Rapamycin Pathway in Largemouth Bass N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-03-03 Zhenjie Wang, Jiajie Tao, Ruitao Xie, Yu Zhang, Haitao Zhang, Naisong Chen, Songlin Li
A feeding trial was conducted to evaluate the effect of fish meal replacement with a composite mixture of soybean protein hydrolysates and other plant proteins on growth performance, antioxidant capacity, and target of rapamycin pathway in Largemouth Bass Micropterus salmoides. Triplicate groups of Largemouth Bass were fed the diet formulated with 40% (FM40; control), 35% (FM35), 30% (FM30), or 25%
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Efficacy of Florfenicol and Oxytetracycline Administered in Feed to Control Cisco Mortality Associated with Aeromonas salmonicida Infections N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-03-03 Aaron R. Cupp, Maren T. Tuttle-Lau, Eric Leis, Samantha L. Wolfe, Justin R. Smerud, John W. Oliver, Richard A. Erickson, Austin P. Hannah, Aaron E. Johnson, Rachel G. Nelson, Isaac Standish, Joel M. Wils, Mark P. Gaikowski
Two medications (one with florfenicol and one with oxytetracycline) that are approved in the United States to control mortality due to furunculosis associated with Aeromonas salmonicida were assessed to determine their efficacy in medicated feeds to treat A. salmonicida-infected Cisco (also known as Lake Herring) Coregonus artedi. Cisco were subjected to static infection baths containing A. salmonicida
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Assessing Antipredator Behavior and the Potential to Enhance It in a Species of Conservation Concern N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-02-22 Christopher J. Kopack, E. Dale Broder, Eric R. Fetherman, Ryan M. Fitzpatrick, Lisa M. Angeloni
Animal behavior has the potential to guide the management of populations at risk of extirpation. This includes insights into how animals respond to novel predators and whether those responses can be enhanced to improve survival. Training hatchery-reared fish to recognize predators has been proposed as a way to reduce postrelease mortalities in the wild. Identifying the presence of innate predator recognition
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Sobaity Seabream Culture in High-Temperature Conditions N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-02-11 Benjamin C. Young, Ali Al Shaikhi
The survival, growth performance, feed intake, and feed conversion ratio of cultured Sobaity Seabream Sparidentex hasta in local high temperatures of 24, 28, and 32°C were estimated in this study. Experiments were conducted in triplicates with 40 fish (99 g average body weight; 17 cm average total length) in each indoor 1-metric-ton fiber-reinforced plastic tank. For 96 d, the fish were fed a commercial
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Effects of Prey Size, Microalgal Density, and Light Intensity on Survival of Pacific Red Snapper Larvae N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-02-10 Ulises Amador-Marrero, Roberto Cota-Taylor, Mauricio Contreras-Olguín, Laura Flores-Montijo, Sergio Martínez-Díaz, Fernando Cavallin, Gerardo García, Gustavo Rodriguez Montes de Oca, José Cristobal Román-Reyes, Silvie Dumas
Development of Pacific Red Snapper Lutjanus peru culture has been impeded by low survival in larval culture. We studied the effects of different culture conditions on larval survival in four experiments that examined (1) different-size prey at first feeding (nauplii of the copepods Parvocalanus crassirostris and Pseudodiaptomus euryhalinus; rotifers Proales similis; and a mix of these three prey types);
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Effect of Seasonality for Optimization of Germ Cell Extraction from Mature Blue Catfish N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-02-10 Darshika Udari Hettiarachchi, Veronica N. Alston, Jeremy Gurbatow, Hana N. Hess, Baofeng Su, Andrew Johnson, Michael P. Coogan, Jinhai Wang, De Xing, Shangjia Li, David Creamer, Vahid Zadmajid, Ian A.E. Butts, Rex A. Dunham
Xenogenesis is an innovative tool for hybrid catfish (female Channel Catfish Ictalurus punctatus × male Blue Catfish I. furcatus) seed production, accomplished by transplanting undifferentiated germ cells derived from a donor diploid fish into a sterile recipient, which then enables recipient fish to produce donor-derived gametes. There is potential to collect donor-derived germ cells from mature fish
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Transcriptional Ontogeny Platform of Sex Determination/Sex Differentiation Genes in Almaco Jack Larvae N. Am. J. Aquac. (IF 1.0) Pub Date : 2023-01-27 Danitzia A. Guerrero-Tortolero, Grecia Vázquez-Islas, Rafael Campos-Ramos
The fish sex determination/sex differentiation (SD) system is still intriguing in many species, such as Seriola fish. Marine amberjacks have a conserved ZW/ZZ SD system. We aimed to identify how early SD genes were expressed in larval Almaco Jack Seriola rivoliana by RNA sequencing and to determine whether there was an early developmental differential expression up to the onset of exogenous feeding
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Copper Toxicity to the Ghost Rams-Horn Snail Biomphalaria havanensis N. Am. J. Aquac. (IF 1.0) Pub Date : 2022-12-02 Charles C. Mischke, Bradley M. Richardson, Ambika Tiwari, Matt J. Griffin, Junaid U. Rehman, Mohammad K. Ashfaq, N. P. Dhammika Nanayakkara, Ikhlas A. Khan, David J. Wise
Avian piscivores cause direct economic losses to the aquaculture industry through predation, as well as indirect losses through transmission of digenetic trematodes. Bolbophorus damnificus is a trematode parasite associated with significant losses in catfish aquaculture. The complex life cycle involves the American white pelican Pelecanus erythrorhynchos, planorbid snails, and ictalurid catfish. With
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Evaluation of High-Protein Distillers Dried Grains with Yeast as a Protein Source in Practical Diets for Pacific White Shrimp Litopenaeus Vannamei N. Am. J. Aquac. (IF 1.0) Pub Date : 2022-11-14 Sidra Nazeer, Scott Tilton, D. Allen Davis
Increasing worldwide competition and shifts in demand, technological advancements, and innovative findings out of research are triggering the ingredient manufacturing industry to include modified processing technologies and novel ingredients. New technologies have been introduced by the ethanol industry to improve the efficiency of ethanol production, resulting in new types of distillers dried grains
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Determining Optimum Size at Release for Hatchery-Origin Tucannon River Spring Chinook Salmon Using PIT Tags N. Am. J. Aquac. (IF 1.0) Pub Date : 2022-11-09 Michael P. Gallinat, James R. Bence, Larabee S. Miller, Lance A. Ross
The Tucannon River spring Chinook Salmon Oncorhynchus tshawytscha hatchery program has consistently failed to reach the program target adult (age 4 and older) smolt-to-adult return (SAR) rate of 0.87%. This has resulted in the hatchery program falling short of meeting its hatchery adult return goal of 1,152 fish. To determine whether hatchery fish released at a larger size would increase the number
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Rotenone Has Little Effect on Water Quality, Phytoplankton, Zooplankton, or Macroinvertebrates in Aquaculture Nursery Ponds N. Am. J. Aquac. (IF 1.0) Pub Date : 2022-10-30 Charles C. Mischke, Bradley M. Richardson, David J. Wise, Ambika Tiwari
Rotenone application has been reported to cause significant declines in zooplankton populations, with cladocerans and copepods being the most susceptible and possibly taking months to recover. Because copepods and cladocerans are preferred by fry of catfish Ictalurus spp., rotenone application could have significant effects on nursery pond production. Effects of rotenone on zooplankton and time required