Download or read book Life history Characteristics and Fishery Dynamics of Red Drum Sciaenops Ocellatus in the North central Gulf of Mexico written by Corbin Frank Bennetts and published by . This book was released on 2018 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Red drum (Sciaenops ocellatus) are highly targeted recreationally in the Gulf of Mexico, and support a small commercial fishery in Mississippi. Despite their popularity, the stock is assessed using data limited approaches that necessitate accurate life history information. I estimated the year-specific and year-aggregated escapement rates for the Mississippi stock (years 2004 to 2015), which were sensitive to mortality estimation methods; year-aggregated estimates were 6.9 to 28.2 % depending on the method, but temporal patterns were consistent. I then addressed concerns with previously estimated life-history characteristics by describing the sex-specific growth and reproductive dynamics. The three-parameter von Bertalanffy growth function was the best candidate length-at-age model, with no significant difference in overall growth between sex-specific relationships, but females had a larger mean asymptotic length, and four candidate models showed significant sexual dimorphism. I described Red Drum as batch spawners, with 3.7 days between successive spawns during the spawning season (August and September). The age at 50% maturity was around age-3 y in both sexes, but spawning capability was not evident until around age-6 y. The carbon (delta C-13) and nitrogen (delta N-15) stable isotope composition of Red Drum muscle tissue was more enriched in carbon offshore and was significantly different with respect to reproductive phase. Mean and variance of delta N-15 and variance of delta C-13 was significantly different between fish

Download or read book Reproduction of Red Drum Sciaenops Oceallatus in the Northcentral Gulf of Mexico written by Bruce Henry Comyns and published by . This book was released on 1991 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Habitats and Biota of the Gulf of Mexico Before the Deepwater Horizon Oil Spill written by C. Herb Ward and published by Springer. This book was released on 2017-06-26 with total page 948 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is open access under a CC BY-NC 2.5 license. The Gulf of Mexico is an open and dynamic marine ecosystem rich in natural resources but heavily impacted by human activities, including agricultural, industrial, commercial and coastal development. The Gulf of Mexico has been continuously exposed to petroleum hydrocarbons for millions of years from natural oil and gas seeps on the sea floor, and more recently from oil drilling and production activities located in the water near and far from shore. Major accidental oil spills in the Gulf are infrequent; two of the most significant include the Ixtoc I blowout in the Bay of Campeche in 1979 and the Deepwater Horizon Oil Spill in 2010. Unfortunately, baseline assessments of the status of habitats and biota in the Gulf of Mexico before these spills either were not available, or the data had not been systematically compiled in a way that would help scientists assess the potential short-term and long-term effects of such events. This 2-volume series compiles and summarizes thousands of data sets showing the status of habitats and biota in the Gulf of Mexico before the Deepwater Horizon Oil Spill. Volume 2 covers historical data on commercial and recreational fisheries, with an analysis of marketing trends and drivers; ecology, populations and risks to birds, sea turtles and marine mammals in the Gulf; and diseases and mortalities of fish and other animals that inhabit the Gulf of Mexico.

Download or read book Distribution and Abundance of Fishes and Invertebrates in Central Gulf of Mexico Estuaries written by and published by . This book was released on 1991 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Distribution and Abundance of Fishes and Invertebrates in Central Gulf of Mexico Estuaries written by Thomas E. Czapla and published by . This book was released on 1991 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biology of the Spotted Seatrout written by Stephen A. Bortone and published by CRC Press. This book was released on 2002-07-30 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: The spotted seatrout is an important species not only for recreational and commercial fisheries, but also as an integral part of many estuarine ecosystems. As one of the few fishes that live its entire life within an estuarine system, the species has tremendous potential as a monitor or sentinel for estuarine conditions. Prepared by the foremost au

Download or read book Bulletin of Marine Science of the Gulf and Caribbean written by and published by . This book was released on 1993 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book California Cooperative Oceanic Fisheries Investigations Progress Report written by and published by . This book was released on 2011 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Aquaculture oriented Bibliography of the Red Drum Sciaenops Ocellatus written by C. Greg Lutz and published by . This book was released on 1997 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biological and Fisheries Profile of Red Drum Sciaenops Ocellatus written by U. S. Government Printing Office (Gpo) and published by BiblioGov. This book was released on 2013-07 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: The United States Government Printing Office (GPO) was created in June 1860, and is an agency of the the U.S. federal government based in Washington D.C. The office prints documents produced by and for the federal government, including Congress, the Supreme Court, the Executive Office of the President and other executive departments, and independent agencies. The Coastal Zone Information Center (CZIC) collection provides access to nearly 5,000 coastal related documents that the U.S. Government Printing Office (GPO) received from the National Oceanic and Atmospheric Administration (NOAA) Central Library. The collection provides almost 30 years of data and information crucial to the understanding of U.S. coastal management and NOAA's mission to sustain healthy coasts. This is one of their documents.

Download or read book Marine Recreational Fisheries written by and published by . This book was released on 1981 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Environmental Factors and Production Characteristics Affecting the Culture of Red Drum Sciaenops Ocellatus written by Rowland Glenn Thomas and published by . This book was released on 1991 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Oceanic Abstracts written by and published by . This book was released on 1997 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Current References in Fish Research written by and published by . This book was released on 1995 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Red Drum Sciaenops Ocellatus Tagging in North Carolina Waters written by Jeffrey L. Ross and published by . This book was released on 1987 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The 2015 Stock Assessment of Red Drum Sciaenops Ocellatus in Florida written by and published by . This book was released on 2015 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report assesses the status of the Red Drum populations found in four regions along the Atlantic and Gulf coasts of Florida. Red Drum population dynamics are described for the period 1950-2013 utilizing all available information on catch, effort, relative abundance, and size/age composition.

Download or read book Recruitment of Stocked Juvenile Red Drum Sciaenops Ocellatus to the Adult Population in South Carolina written by Joy Gerhard and published by . This book was released on 2010 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: Red drum (Sciaenops ocellatus) is a popular food and recreational fishery species along the southeast U.S. and Gulf of Mexico coasts. Although contribution of stocked fish to the wild population in South Carolina has been measured immediately following stocking up to age two, evaluation of stocked fish recruitment to the adult population has not yet been examined and therefore is the focus of this research. Small juveniles (~30 mm TL) were stocked in the Ashley and Wando Rivers of Charleston Harbor in 1999 - 2002 by the South Carolina Department of Natural Resources (SCDNR). Five years after initial stocking (2004 - 2008), adults were sampled via longline nearshore of four major South Carolina estuaries, and tissue samples were collected for genetic analysis. Genotypes of sampled fish were compared to those of broodstock and it was determined that small stocked juveniles do recruit to the adult stock in South Carolina, with a highly localized contribution near Charleston Harbor. Contribution of the identified stocked fish was estimated via several different methods. Contribution to the stocked year classes in particular were estimated by using length data as well as otolith-based age data collected before and during the sampling period. The percentage of the Charleston Harbor adult population identified as stocked fish from three stocked year classes ranged from 5.8% to 66.0% with the most preferred method, using age-length keys, yielding a contribution estimate of 34.9%. Such a high contribution has the potential to cause deleterious genetic and reproductive effects, though the broodstock husbandry and stocking protocol used by SCDNR is designed to minimalize these effects. Additionally, contribution of this magnitude might allow stocked fish to be used as biomarkers to gain a better understanding of the basic population parameters of adults in South Carolina for management.