Introgression of Nuclear DNA (nDNA) Alleles of Stocked Atlantic Coast Striped Bass with the Last Remaining Native Gulf of Mexico Population

2005 ◽  
Vol 25 (2) ◽  
pp. 464-474 ◽  
Author(s):  
Isaac Wirgin ◽  
Diane Currie ◽  
Nirmal Roy ◽  
Lorraine Maceda ◽  
John R. Waldman
Keyword(s):  
Gulf Of Mexico ◽  
Striped Bass ◽  
Nuclear Dna ◽  
Atlantic Coast

Biology and Management of Inland Striped Bass and Hybrid Striped Bass

2013 ◽  
Keyword(s):  
Gulf Of Mexico ◽  
Striped Bass ◽  
Nuclear Dna ◽  
Atlantic Coast ◽  
Relative Survival ◽  
River System ◽  
Thermal Refuge ◽  
Natural Reproduction ◽  
Apalachicola River ◽  
Flint River

<em>Abstract</em>.—Since the 1970s, the only known naturally reproducing population of native Gulf of Mexico (Gulf ) striped bass <em>Morone saxatilis</em> occurs in the Apalachicola–Chattahoochee–Flint River system (ACF) in Florida, Georgia, and Alabama.To augment its depleted population, low numbers of fry and fingerlings of Atlantic coast ancestry were released into the ACF between 1965 and 1976.Restoration of Gulf striped bass was initiated in 1980 when putative Gulf fingerlings spawned from Apalachicola River (Gulf ) broodfish were stocked back into the ACF. Since the initial stocking, approximately 10 million phase-I (25–50 mm) and 900,000 phase-II (150–250 mm) fingerlings have been released into Lake Seminole and the Apalachicola River, with hundreds of thousands more released into upstream reservoirs. Low levels of successful natural reproduction in the ACF were documented in 9 of the 10 years that natural reproduction was evaluated. Marked stocked fish have typically comprised 75–100% of fall age-0 samples. After stocking was initiated, striped bass harvest estimates increased as much as 10-fold during peak-season creel surveys conducted in the tailrace of Jim Woodruff Lock and Dam. A comparison of Atlantic-origin and Gulf striped bass co-stocked into an adjacent river-reservoir system over a 5-year period indicated no consistent differences in relative survival or growth through age 4. Gulf striped bass occupied coolwater thermal refuges during summer. Enhancement of thermal refuge habitats was successful, but results were short-lived. Small populations of Gulf striped bass, dependent on stocking of hatchery fish, now exist in several Gulf of Mexico tributary systems where adequate habitat is present.Genetic analysis of both mitochondrial and nuclear genomes revealed that a high percentage of fish from the ACF exhibit mitochondrial DNA (mtDNA) haplotypes and nuclear DNA (nDNA) alleles that are absent in Atlantic populations.However, significant introgression of Atlantic nDNA alleles was documented in the extant population. Knowledge of the life history of Gulf striped bass was improved as a result of this multi-state collaboration as well as a large stocking program, new Gulf broodfish repositories, extensive genetic cataloged database,and expanded trophy fisheries. ACF Gulf striped bass restoration goals and objectives were defined, adjusted, and revised throughout the collaborative process to meet the concerns and management needs of all participating agencies.

Redescription of Orthopristis ruber and Orthopristis scapularis (Haemulidae: Perciformes), with a hybridization zone off the Atlantic coast of South America

Zootaxa ◽  
2019 ◽  
Vol 4576 (1) ◽  
pp. 109 ◽  
Author(s):  
ALEXANDRE PIRES MARCENIUK ◽  
RODRIGO ANTUNES CAIRES ◽  
LEONARDO MACHADO ◽  
NAJILA NOLIE CATARINE DANTAS CERQUEIRA ◽  
RAYLA ROBERTA M. DE S. SERRA ◽  
...  
Keyword(s):  
South America ◽  
Nuclear Dna ◽  
Atlantic Coast ◽  
Morphological Characteristics ◽  
Distinct Species ◽  
Valid Species ◽  
Brazilian Coast ◽  
Northern Coast ◽  
Western Atlantic ◽  
Coloration Patterns

The genus Orthopristis includes seven valid species, three from the western Atlantic and five from eastern Pacific, while the available identification guides and taxonomic keys incorrectly recognize Orthopristis ruber as the only valid species found on the Atlantic coast of South America. Efforts to expand the inventory of fish species from the northern coast of Brazil led to the identification of two distinct species of Orthopristis from Atlantic South America, based on the analysis of coloration patterns and meristic data, as well as DNA. In the present study, the limits of Orthopristis ruber are reviewed, while Orthopristis scapularis is recognized as a valid species for the northern and northeastern coasts of South America. Based on intermediate morphological characteristics and nuclear DNA markers, a hybrid zone was identified off the state of Espírito Santo, on the eastern Brazilian coast. Additionally, considerations are made on the diversity and biogeography of the coastal marine and estuarine fishes found on the Brazilian coast. 

Variability of Atlantic Coast Striped Bass Egg Characteristics

2003 ◽  
Vol 23 (2) ◽  
pp. 558-572 ◽  
Author(s):  
Lauren L. Bergey ◽  
Roger A. Rulifson ◽  
Margie L. Gallagher ◽  
Anthony S. Overton
Keyword(s):  
Striped Bass ◽  
Atlantic Coast

scholarly journals Molecular data reshape our understanding of the life cycles of three digeneans (Monorchiidae and Gymnophallidae) infecting the bivalve, Donax variabilis: it’s just a facultative host!

Parasite ◽  
2021 ◽  
Vol 28 ◽  
pp. 34
Author(s):  
Kristina M. Hill-Spanik ◽  
Claudia Sams ◽  
Vincent A. Connors ◽  
Tessa Bricker ◽  
Isaure de Buron
Keyword(s):  
Gulf Of Mexico ◽  
Intermediate Host ◽  
Atlantic Coast ◽  
The United States ◽  
Life Cycles ◽  
Intermediate Hosts ◽  
Larval Stages ◽  
Complete Life Cycle ◽  
Morphological Criteria ◽  
Donax Variabilis

The coquina, Donax variabilis, is a known intermediate host of monorchiid and gymnophallid digeneans. Limited morphological criteria for the host and the digeneans’ larval stages have caused confusion in records. Herein, identities of coquinas from the United States (US) Atlantic coast were verified molecularly. We demonstrate that the current GenBank sequences for D. variabilis are erroneous, with the US sequence referring to D. fossor. Two cercariae and three metacercariae previously described in the Gulf of Mexico and one new cercaria were identified morphologically and molecularly, with only metacercariae occurring in both hosts. On the Southeast Atlantic coast, D. variabilis’ role is limited to being a facultative second intermediate host, and D. fossor, an older species, acts as both first and second intermediate hosts. Sequencing demonstrated 100% similarities between larval stages for each of the three digeneans. Sporocysts, single tail cercariae, and metacercariae in the incurrent siphon had sequences identical to those of monorchiid Lasiotocus trachinoti, for which we provide the complete life cycle. Adults are not known for the other two digeneans, and sequences from their larval stages were not identical to any in GenBank. Large sporocysts, cercariae (Cercaria choanura), and metacercariae in the coquinas’ foot were identified as Lasiotocus choanura (Hopkins, 1958) n. comb. Small sporocysts, furcocercous cercariae, and metacercariae in the mantle were identified as gymnophallid Parvatrema cf. donacis. We clarify records wherein authors recognized the three digenean species but confused their life stages, and probably the hosts, as D. variabilis is sympatric with cryptic D. texasianus in the Gulf of Mexico.

Shark Nursery Grounds of the Gulf of Mexico and the East Coast Waters of the United States

2007 ◽  
Keyword(s):  
United States ◽  
Gulf Of Mexico ◽  
East Coast ◽  
Gulf Coast ◽  
Atlantic Coast ◽  
The United States ◽  
Shark Species ◽  
Carcharhinus Plumbeus ◽  
Nursery Areas ◽  
Pesticide Metabolites

<em>Abstract.</em>—Because of their tendency to accumulate in estuaries and coastal regions, organochlorine (OC) contaminants such as pesticides and polychlorinated biphenyls (PCBs) represent potential threats to the quality of essential fish habitat for many shark species. These compounds pose special risks to immature sharks in particular because of their ability to impair growth and sexual maturation in juvenile fish at environmentally relevant levels of exposure. In order to assess the extent of these risks in shark populations on the East Coast of the United States, the present study examined concentrations of 30 OC pesticides/pesticide metabolites and total PCBs in juvenile sandbar <em>Carcharhinus plumbeus </em>and blacktip <em>C. limbatus </em>sharks from seven major nursery areas in the western Atlantic Ocean and eastern Gulf of Mexico. Quantifiable levels of PCBs and 13 OC pesticides/ pesticide metabolites were detected via gas chromatography and mass spectrometry in liver of 25 young-of-the-year blacktip sharks from the southeastern U.S. Atlantic coast and three regions on Florida’s gulf coast: Cedar Key, Tampa Bay, and Charlotte Harbor. Similarly, quantifiable levels of PCBs and 14 OC pesticides/metabolites were detected in 23 juvenile <em>C. plumbeus </em>from three sites on the northeastern U.S. coast: middle Delaware Bay, lower Chesapeake Bay, and Virginia’s eastern shore. Liver OC concentrations in Atlantic sandbar and blacktip sharks were higher than expected and, in some cases, comparable with elevated levels observed in deep-sea and pelagic sharks. Although significantly lower than those observed in Atlantic sharks, pesticide and PCB levels in Florida blacktip sharks were similar to, if not greater than, OC concentrations reported in adults of other coastal shark species. Based on these data, OC contamination appears to pose significant threats to habitat quality in sandbar and blacktip shark nursery areas on the U.S. Atlantic coast.

Tetrachlorodibenzo--dioxins and tetrachlorodibenzofurans in Atlantic coast striped bass and in selected Hudson River fish, waterfowl and sediments

Chemosphere ◽  
1984 ◽  
Vol 13 (8) ◽  
pp. 849-860 ◽  
Author(s):  
P. O'Keefe ◽  
D. Hilker ◽  
C. Meyer ◽  
K. Aldous ◽  
L. Shane ◽  
...  
Keyword(s):  
Striped Bass ◽  
Atlantic Coast ◽  
Hudson River ◽  
River Fish

US Atlantic coast striped bass: issues with a recovered population

2003 ◽  
Vol 10 (5) ◽  
pp. 309-312 ◽  
Author(s):  
K. J. Hartman ◽  
F. J. Margraf
Keyword(s):  
Striped Bass ◽  
Atlantic Coast
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