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  • 1
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    Characterization of the U.S. Gulf of Mexico and South Atlantic penaeid and rock shrimp fisheries based on observer data (2021)
    In:  elizabeth.scott-denton@noaa.gov | http://aquaticcommons.org/id/eprint/14547 | 403 | 2014-02-14 23:28:43 | 14547 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-27
    Description: In July 2007, a mandatory Federal observer program was implemented to characterize the U.S. Gulf of Mexico penaeid shrimp (Farfantepenaeus aztecus, F. duorarum, and Litopenaeus setiferus) fishery. In June 2008, the program expanded to include the South Atlantic penaeid and rock shrimp, Sicyonia spp., fisheries. Data collected from 10,206 tows during 5,197 sea days of observations were analyzed by geographical area and target species. The majority of tows (~70%) sampled were off the coasts of Texas and Louisiana. Based on total hours towed, the highest concentrated effort occurred off South Texas and southwestern Florida. Gear information, such as net characteristics, bycatch reduction devices, and turtle excluder devices were fairly consistent among areas and target species. By species categories, finfish comprised the majority (≥57%) of the catch composition in the Gulf of Mexico and South Atlantic penaeid shrimp fisheries, while in the South Atlantic rock shrimp fishery the largest component (41%) was rock shrimp. Bycatch to shrimp ratios were lower than reported in previous studies for the Gulf of Mexico penaeid shrimp fishery. These decreased ratios may be attributed to several factors, notably decreased shrimp effort and higher shrimp catch per unit of effort (CPUE) in recent years. CPUE density surface plots for several species of interest illustrated spatial differences in distribution. Hot Spot Analyses for shrimp (penaeid and rock) and bycatch species identified areas with significant clustering of high or low CPUE values. Spatial and temporal distribution of protected species interactions were documented.
    Keywords: Ecology ; Fisheries ; Management
    Repository Name: AquaDocs
    Type: article , TRUE
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  • 2
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    Analysis of sea turtle bycatch in the commercial shrimp fisheries of Southeast U.S. waters and the Gulf of Mexico (2021)
    NOAA/National Marine Fisheries Service/Southeast Fisheries Science Center | Miami, FL
    In:  http://aquaticcommons.org/id/eprint/2139 | 403 | 2011-09-29 19:32:42 | 2139 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-07-12
    Description: The coastal shrimp trawl fisheries have long been the focus of conservation actions to reduce turtle bycatch and mortality in the Gulf of Mexico and the U.S. Atlantic (NRC, 1990). Calculation of catch rates of sea turtles in shrimp trawls is necessary to evaluate the impact on sea turtle populations. In this paper we analyze sea turtle bycatch to provide an estimate of the current number of interactions with otter trawl gear as well as an estimate of the number of fatal inions in Southeast U.S. waters and the Gulf of Mexico. We also provide an estimate of the number of individuals likely to die in the future with the new regulations that will require an increase in the size of the escape openings in trutle excluder devices (TEDs). The new regulations will allow many more turtles to escape. Other gears also are discussed. (PDF contains 24 pages)
    Keywords: Management ; Fisheries
    Repository Name: AquaDocs
    Type: monograph
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  • 3
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    Descriptions of the U.S. Gulf of Mexico Reef Fish Bottom Longline and Vertical Line Fisheries Based on Observer Data (2021)
    In:  http://aquaticcommons.org/id/eprint/9662 | 403 | 2012-08-14 16:29:20 | 9662 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-07-08
    Description: In July 2006, a mandatory observer program was implemented to characterize the commercial reef fish fishery operating in the U.S. Gulf of Mexico. The primary gear types assessed included bottom longline and vertical line (bandit and handline). A total of 73,205 fish (183 taxa) were observed in the longline fishery. Most (66%) were red grouper, Epinephelus morio, and yellowedge grouper, E. flavolimbatus. In the vertical line fishery, 89,015 fish (178 taxa) were observed of which most (60%) were red snapper, Lutjanus campechanus, and vermilion snapper, Rhomboplites aurorubens. Based on surface observations of discarded under-sized target and unwanted species, the majority of fish were released alive; minimum assumed mortality was 23% for the vertical line and 24% for the bottom longline fishery. Of the individuals released alive in the longline fishery, 42% had visual signs of barotrauma stress (air bladder expansion/and or eyes protruding). In the vertical line fishery, 35% of the fish were released in a stressed state. Red grouper and red snapper size composition by depth and gear type were determined. Catch-per-unit-effort for dominant species in both fisheries, illustrated spatial differences in distribution between the eastern and western Gulf. Hot Spot Analyses for red grouper and red snapper identified areas with significant clustering of high or low CPUE values.
    Keywords: Biology ; Fisheries ; Management
    Repository Name: AquaDocs
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  • 4
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    Skimmer Trawl Fishery Catch Evaluations in Coastal Louisiana, 2004 and 2005 (2021)
    In:  http://aquaticcommons.org/id/eprint/9709 | 403 | 2012-08-14 16:51:02 | 9709 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-07-08
    Description: Fishery observers collected data from 307 tows during 96 trips aboard skimmer trawl vessels in Louisiana’s coastal waters from September 2004 through June 2005 to estimate catch rates of target and nontarget species, including sea turtles (Cheloniidae and Dermochelyidae), by area and season during commercial shrimping operations. About 16,965.7 kg of total catch were recorded during 517.0 hours of fishing operations. Based on weight extrapolations from species composition samples, penaeid shrimp (Penaeidae)dominated the catch at 66%, followed by finfish at 19%, nonpenaeid shrimp crustaceans at 7%, discarded penaeid shrimp at 6%, and debris at 3%. Noncrustaceaninvertebrates comprised less than 1%. Catch rates in kilograms per hour by category was 21.6 for penaeid shrimp, 6.2 for finfish, 2.2 for nonpenaeid crustaceans, 1.8 for discarded penaeid shrimp, and 0.9 for debris. White shrimp, Litopenaeus setiferus, other penaeid shrimp, and Gulf menhaden, Brevoortia patronus, were the top three dominant species by weight. Seasonally, a higher catch rate was observed from May through August 2005 for penaeid shrimpas compared with the September through December 2004 period. Conversely, the September through December 2004 period experienced a higher catch rate for finfish than during May through August 2005. No sea turtle interactions were documented.
    Keywords: Fisheries ; Management
    Repository Name: AquaDocs
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  • 5
    Electronic Resource
    Electronic Resource
    On potentials and relevance of the use of copulatory structures in anostracan taxonomy (1997)
    Springer
    Hydrobiologia 359 (1997), S. 83-92 
    Details
    ISSN: 1573-5117
    Keywords: Branchiopoda ; Anostraca ; genital morphology ; genus concept
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract This paper reviews and extends the knowledge of anostracan penile morphology and its taxonomic significance. Since Linder‘s pioneering classification(based partly on male genital characters), the morphology of both basal and distal penile parts has been applied repeatedly to reorganize or establish higher anostracan taxa, or to extend their diagnoses. In general, the configuration of both basal and distal penile structures follows a constant pattern in well-defined genera. Size and shape of processes and spinulation on the basal (in Linderiella and Chirocephalidae) and the distal parts (in Parartemia), however, may show inter-specific differences. Variability in penile structures in the current genus Brachinella indicates the need for a taxonomic revision of this genus. Similar intra-generic penis morphology may contribute to hybridizability of congeners and validate Dubois‘genus concept for use in anostracans.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003125812020
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  • 6
    Electronic Resource
    Electronic Resource
    Supplement to "Checklist of the Anostraca" (1997)
    Springer
    Hydrobiologia 359 (1997), S. 243-245 
    Details
    ISSN: 1573-5117
    Keywords: Anostraca ; checklist
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Our 1995 "Checklist of the Anostraca" covered all species described through 31 December 1993 along with those described in the volume from the Second International Large Branchiopod Symposium (Hydrobiologia 298). This supplement includes new species (14) described through 31 December 1996, one change in rank and one new species discussed in this symposium volume, anew synonym, and correction of errors discovered in the original. We do not update new range extensions. With these additions and changes, we number the named anostracan fauna of the world at 273 species and six subspecies organized in 23 genera. The need for more study of anostracan zoogeography is again demonstrated by the fact that seven of the 16 species added to the checklist are know only from their type localities. Until we have more complete information on the distributions of the species, it will not be possible to make an accurate evaluation of the status of anostracan biodiversity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003172516989
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  • 7
    Electronic Resource
    Electronic Resource
    Anostracans in dark sections of Saudi Arabian caves (1997)
    Springer
    Hydrobiologia 359 (1997), S. 203-206 
    Details
    ISSN: 1573-5117
    Keywords: Anostraca ; cave ; Saudi Arabia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Anostracans were found living in ephemeral pools in the dark sections of three caves on the As Summan Plateau in Saudi Arabia. Branchipus schaefferi Fischer, 1834 occurred alone in one while it cohabited with Streptocephalus torvicornisbucheti Daday, 1910 in a second cave; fairy shrimps were observed but not collected from the third. None of the specimens demonstrated any of the types of morphological changes typically associated with cave adapted species. This is likely due to continuing colonization of the pools during flooding events.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003120500150
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  • 8
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    G-protein-independent coupling of MC4R to Kir7.1 in hypothalamic neurons (2015)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2015-01-21
    Description: The regulated release of anorexigenic alpha-melanocyte stimulating hormone (alpha-MSH) and orexigenic Agouti-related protein (AgRP) from discrete hypothalamic arcuate neurons onto common target sites in the central nervous system has a fundamental role in the regulation of energy homeostasis. Both peptides bind with high affinity to the melanocortin-4 receptor (MC4R); existing data show that alpha-MSH is an agonist that couples the receptor to the Galphas signalling pathway, while AgRP binds competitively to block alpha-MSH binding and blocks the constitutive activity mediated by the ligand-mimetic amino-terminal domain of the receptor. Here we show that, in mice, regulation of firing activity of neurons from the paraventricular nucleus of the hypothalamus (PVN) by alpha-MSH and AgRP can be mediated independently of Galphas signalling by ligand-induced coupling of MC4R to closure of inwardly rectifying potassium channel, Kir7.1. Furthermore, AgRP is a biased agonist that hyperpolarizes neurons by binding to MC4R and opening Kir7.1, independently of its inhibition of alpha-MSH binding. Consequently, Kir7.1 signalling appears to be central to melanocortin-mediated regulation of energy homeostasis within the PVN. Coupling of MC4R to Kir7.1 may explain unusual aspects of the control of energy homeostasis by melanocortin signalling, including the gene dosage effect of MC4R and the sustained effects of AgRP on food intake.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4383680/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4383680/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ghamari-Langroudi, Masoud -- Digby, Gregory J -- Sebag, Julien A -- Millhauser, Glenn L -- Palomino, Rafael -- Matthews, Robert -- Gillyard, Taneisha -- Panaro, Brandon L -- Tough, Iain R -- Cox, Helen M -- Denton, Jerod S -- Cone, Roger D -- 5R01 DK082884-03/DK/NIDDK NIH HHS/ -- DK020593/DK/NIDDK NIH HHS/ -- F31 DK102343/DK/NIDDK NIH HHS/ -- P30 DK020593/DK/NIDDK NIH HHS/ -- R01 DK064265/DK/NIDDK NIH HHS/ -- R01 DK070332/DK/NIDDK NIH HHS/ -- R01DK064265/DK/NIDDK NIH HHS/ -- R01DK070332/DK/NIDDK NIH HHS/ -- R25 GM059994/GM/NIGMS NIH HHS/ -- England -- Nature. 2015 Apr 2;520(7545):94-8. doi: 10.1038/nature14051. Epub 2015 Jan 19.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Physiology &Biophysics, Vanderbilt University Medical Center, Nashville, Tennessee 37232, USA. ; Department of Chemistry &Biochemistry, University of California, Santa Cruz, California 95064, USA. ; 1] Department of Molecular Physiology &Biophysics, Vanderbilt University Medical Center, Nashville, Tennessee 37232, USA [2] Department of Pharmacology, Meharry Medical College, Nashville, Tennessee 37208, USA. ; King's College London, Wolfson Centre for Age-Related Diseases, Guy's Campus, London SE1 1UL, UK. ; 1] Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, Tennessee 37232, USA [2] Department of Pharmacology, Vanderbilt University Medical Center, Nashville, Tennessee 37232, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25600267" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Agouti-Related Protein/metabolism ; Animals ; Eating/genetics ; Energy Metabolism ; Female ; *GTP-Binding Protein alpha Subunits, Gs ; HEK293 Cells ; Homeostasis/genetics ; Humans ; Ligands ; Male ; Melanocortins/metabolism ; Mice ; Neurons/*metabolism ; Paraventricular Hypothalamic Nucleus/*cytology ; Potassium Channels, Inwardly Rectifying/*metabolism ; Receptor, Melanocortin, Type 4/genetics/*metabolism ; Signal Transduction/genetics ; alpha-MSH/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 9
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    Careers in science. More women in science (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2005-08-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Handelsman, Jo -- Cantor, Nancy -- Carnes, Molly -- Denton, Denice -- Fine, Eve -- Grosz, Barbara -- Hinshaw, Virginia -- Marrett, Cora -- Rosser, Sue -- Shalala, Donna -- Sheridan, Jennifer -- New York, N.Y. -- Science. 2005 Aug 19;309(5738):1190-1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Plant Pathology, University of Wisconsin - Madison, 1630 Linden Dr., Madison, WI 53706, USA. joh@ plantpath.wisc.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16109868" target="_blank"〉PubMed〈/a〉
    Keywords: Career Choice ; *Career Mobility ; Education, Graduate ; *Faculty ; Family ; Female ; Humans ; Personnel Selection ; Prejudice ; *Science ; Universities ; *Women
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 10
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    Gender differences and performance in science (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2005-02-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Muller, Carol B -- Ride, Sally M -- Fouke, Janie -- Whitney, Telle -- Denton, Denice D -- Cantor, Nancy -- Nelson, Donna J -- Plummer, Jim -- Busch-Vishniac, Ilene -- Meyers, Carolyn -- Rosser, Sue V -- Schiebinger, Londa -- Roberts, Eric -- Burgess, David -- Beeson, Craig -- Metz, Susan Staffin -- Sanders, Lucinda -- Watford, Bevlee A -- Ivey, Elizabeth S -- Frank Fox, Mary -- Wettack, Sheldon -- Klawe, Maria -- Wulf, William A -- Girgus, Joan -- Leboy, Phoebe S -- Babco, Eleanor L -- Shanahan, Betty -- Didion, Catherine -- Chubin, Daryl E -- Frize, Monique -- Ganter, Susan L -- Nalley, E Ann -- Franz, Judy -- Abruna, Hector D -- Strober, Myra H -- Zimmer Daniels, Jane -- Carter, Emily A -- Rhodes, Jean H -- Schrijver, Iris -- Zakian, Virginia A -- Simons, Barbara -- Martin, Ursula -- Boaler, Jo -- Jolluck, Katherine Rose -- Mankekar, Purnima -- Gray, Robert M -- Conkey, Margaret W -- Stansky, Peter -- Xie, Aihua -- Martin, Pino -- Katehi, Linda P B -- Miller, Jo Anne -- Tess Thornton, Amelia -- Lapaugh, Andrea -- Rhode, Deborah L -- Gelpi, Barbara C -- Harrold, Mary Jean -- Spencer, Cherrill M -- Schlatter Ellis, Carla -- Lord, Susan -- Quinn, Helen -- Murnane, Margaret -- Jones, Patricia P -- Hellman, Frances -- Wight, Gail -- O'hara, Ruth -- Pickering, Mary -- Sheppard, Sheri -- Leith, David -- Paytan, Adina -- Sommer, Matthew H -- Shafer, Audrey -- Grusky, David -- Yennello, Sherry -- Madan, Ashima -- Johnson, Denise L -- Yanagisako, Sylvia -- Chou-Green, Jennifer M -- Robinson, Sandra -- New York, N.Y. -- Science. 2005 Feb 18;307(5712):1043.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15718449" target="_blank"〉PubMed〈/a〉
    Keywords: *Career Choice ; Female ; Humans ; Male ; *Science ; *Sex Characteristics ; Social Change
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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