Life Sciences Commons^™

Population Variation In The Mitochondrial-Dna Of Two Marine Organisms: The Hard Shell Clam Mercenaria Spp. And The Killifish, Fundulus Heteroclitus, Bonnie Lynn Brown

OES Theses and Dissertations

The two major topics are covered in this dissertation: the integration of molecular genetic tools with applied aquacultural research and short-term evolutionary dynamics. The first study investigated the extent of geographic differentiation of native clam stocks along the U.S. east and Gulf coasts. Clam mitochondrial DNA (mtDNA) demonstrated size polymorphism (16.5-19.0 kb) and restriction site heteroplasmy. Size heteroplasmic individuals occurred at a frequencies of 0-89% in clam populations. Restriction site heteroplasmy occurred in 12% of the 317 individuals assayed. Results of the study indicated that although harbouring a wealth of genetic variation, clams from northern regions were similar and lacked …

A Report On Marron Fishing In Western Australia., Doug Wenn

Fisheries management papers

The marroning experience is one enjoyed by many Western Australians. A rapid increase in fishing effort evidenced by the increase in number of recreational fishing licences issued, combined with low rainfall in the last few years resulted in a dramatic reduction of marron catch rates during 1986/87. In view of the state of marron stocks, the Minister for Fisheries considered it appropriate to close the 1987/88 marron season.

Management Of The South-West Inshore Trawl Fishery., N. Moore

Fisheries management papers

This report outlines the management plan for the south west inshore trawl fishery which already operates in coastal waters less than 200 metres deep between Guilderton and Cape Leeuwin. This management plan takes into account these important concerns and has specifically set aside a strip of coastal area from Cape Bouvard to Cape Leeuwin for recreational usage and for protection of the benthic community, and closed the management zone north of Burns Beach to trawling.

Feasibility Of Crab Meal Processing In The Chesapeake Bay Region Ii: An Integrated Economic Analysis For Hampton/Newport News, Virginia, Phillip R. Grulich, William D. Dupaul

Reports

The crab waste problem in Virginia and Maryland has been well documented by past research efforts, (Hatem, 1980) (Murray and DuPaul 1981) (Cathcart et, al.1984). Murray and DuPaul (1981) documented both the magnitude and location of the problem in Maryland and Virginia. Their analysis provided a description of the total waste disposal problem in the Bay and pinpointed specific trouble spots. The report provided enterprise budgets for three locations; Hampton, Virginia, Crisfield, Maryland, and Cambridge, Maryland. These locations were chosen because of their proximity to crab processors and their ability to produce sufficient quantities of crab waste to make a …

A Flow Cytometric Approach To Assessing The Environmental And Physiological Status Of Phytoplankton, Serge Demers, Kimberly Davis, Terry L. Cucci

CCPO Publications

No abstract provided.

Rock Lobster Industry Advisory Committee Reported To The Minister For Fisheries., Rock Lobster Industry Advisory Committee

Fisheries management papers

The total catch of about 12.1 million kilograms for the 1987/88 season, based on processor returns, was an increase of 44% on the 1986/87 season. This very high catch, the third highest on record, resulted from an above average perulus settlement in 1983/84 and a "flow-on" of fast growing animals stemming from the expected high recruitment in 1988/990 caught as "reds" in 1987/88. The Committee has identified five major elements related to the state of the rock lobster fishery upon which management advice is considered. a) The undersize fraction of the population. b) The "whites" which provide a significant proportion …

Fact Sheet: Aviation Services, College Of William And Mary, Virginia Institute Of Marine Science

Miscellaneous

Brochure describing the features and specifications of the 1954 DeHavilland Beaver aircraft, acquired on loan from the U.S. Navy in late1975, used for aerial photography, reconnaissance, observation and transport in support of the Institute's research mission.

The brochure is undated, 1989 is estimated.

Additional background information on the airplane available p.1 : https://scholarworks.wm.edu/miscellaneous/19/

The College Of William And Mary, School Of Marine Science, 1989-90 Program, College Of William And Mary, School Of Marine Science

Miscellaneous

Catalog for the Graduate program from the School of Marine Science at the College of William and Mary for the listed academic year.

Winter 1989, Nsu Oceanographic Center

Currents

No abstract provided.

Fall 1989, Nsu Oceanographic Center

Currents

No abstract provided.

Summer 1989, Nsu Oceanographic Center

Currents

No abstract provided.

Spring 1989, Nsu Oceanographic Center

Currents

No abstract provided.

Gammaropsis Arawakia, A New Species Of Marine Amphipoda (Crustacea) From Jamaica, James Darwin Thomas, J. L. Barnard

Marine & Environmental Sciences Faculty Articles

One of the dominant amphipods in algal turf communities at Discovery Bay, Jamaica, is a new species, Gammaropsis arawakia, characterized by long peduncle of uropod 3, small coxa I, 3-articulate accessory flagellum, extremely setose gnathopod 2, one pair of dorsal teeth on urosomite I, pointed ocular lobe, and oblique upper margin of cephalic sinus for antenna 2.

A New Species, Ampelisca Burkei, (Crustacea, Amphipoda) From Florida, J. L. Barnard, James Darwin Thomas

Marine & Environmental Sciences Faculty Articles

A new species Ampelisca burkei, from Florida, is described. This species appears to be very close to A. lobata Holmes, from the eastern Pacific Ocean, but differs in the shape and setation of article 4 on pereopod 7, and the presence of an anteroventral spine-seta on article 5 of pereopod 7.

Ingestion Of Gametes By Protists: Fate Of Surplus Reproductive Energy In The Sea, Hm Galvao, At Fritz, R Schmaljohann

VIMS Articles

No abstract provided.

Four Species Of Synopiidae From The Caribbean Region (Crustacea: Amphipoda), J. L. Barnard, James Darwin Thomas

Marine & Environmental Sciences Faculty Articles

Synopia ultramarina is redescribed from the Gulf Stream and the Florida Keys and comments are made on the tangled taxonomy in Synopia. Tiron bellairsi, originally described from Barbados, is reported from Belize, at the opposite side of the Caribbean Basin. Garosyrrhoe bigarra, a Pacific species, is also reported from Belize, but no clear subspecific differences are detected as yet between Pacific and Atlantic populations.

Larval Distribution And Abundance Of Carangidae (Pisces), From The Southern Gulf Of Mexico, 1983-1984, Cesar Flores-Coto, Marina Sanchez-Ramirez

Gulf and Caribbean Research

The larval distribution and abundance of several taxa of the carangids from the southem Gulf of Mexico are analyzed, based on data from four oceanographic cruises conducted between 1983 and 1984. The material was collected with a bongo net fished to maximum depths of 200 m. The species collected were Chloroscombrus chrysurus (54.2%), Decapterus punctatus (15.8%), Trachurus Iathami (11.8%), Selene setapinnis (6.1%), Selar crumenophthalmus (6.0), Caranx hipposllatus (0.9%), Caranx crysos (0.7%) and Selene sp. (0.3%). The higher frequency of occurrence and greater abundance of larvae of all species was found over the continental shelf, and in some cases, in the …

An Illustrated Key To The Chaetognatha Of The Northern Gulf Of Mexico With Notes On Their Distribution, Jerry A. Mclelland

Gulf and Caribbean Research

A key is provided to facilitate the identification of 24 species in nine genera of Chaetognatha occurring in the northem Gulf of Mexico. Included are the deep-water species, Eukrohnia proboscidea, E. calliops, Mesosagitta sibogae, and Sagitta megalophthalma, all recent additions to the known fauna of the region. Meristic data, brief descriptions, ecological notes, Gulf of Mexico records, and illustrations are also presented.

Survey And Reconnaissance Of Sea Turtles In The Northern Gulf Of Mexico, Larry Ogren

United States Department of Commerce: Staff Publications

This is a report on the results of an aerial survey of nesting beaches conducted during the period from May 16, 1977 to August 11, 1977. The area covered included the barrier beaches and offshore islands from the Florida-Alabama state line to the Rio Grande, Texas. Additional historical information is provided in order to compare current nesting activity with previous years as well as anecdotal observations on the occurrence of sea turtles in this region.

Tanaidacea (Crustacea: Peracardia) Of The Gulf Of Mexico. Vi. On The Genus Mesotanais Dollfus, 1897 With Descriptions Of Two New Species, M. Longisetosus And M. Vadicola, Jurgen Sieg, Richard W. Heard

Gulf and Caribbean Research

Two new species of tanaidaceans belonging to the family Leptocheliidae were collected from the continental shelves and slopes of the eastem and Gulf coasts of the United States. Both of these species are assigned to the poorly known genus Mesotanais Dollfus, 1897. Mesotanais is unique within the Leptocheliidae because its members lack eyes. The second supposedly important generic character, uniramous uropods, reported in the original description is considered to be a misdiagnosis. The assumption of this error is supported by the rediscovery of the type-species, Mesotanais dubius Dollfus, 1897 (Sieg and Bird, in press). In the present study, the genus …

Calliax Jonesi, N. Sp. (Decapoda: Thalassinidea: Callianassidae) From The Northwestern Bahamas, Richard W. Heard

Gulf and Caribbean Research

Two specimens of Calliax jonesi, n. sp., were collected from fine carbonate sediments in 3 to 5 m of water at Bimini Harbor, Bahamas. Of the species presently assigned to the genus Calliax de Saint Laurent, 1973, C. jonesi appears to be most closely related to C. quadracuta (Biffar, 1970), presently known from the Atlantic coast of Venezuela and the Florida Keys. Calliax jonesi is distinguished from C. quadracuta by: (1) the absence of a distal spinose process on the dorsal and ventral margins of the carpus of the first pair of chelipeds, (2) the armature and shape of …

The Growth Of Cultchless Crassostrea Virginica Spat At Biloxi Bay, Mississippi Using Different Methods Of Culture, John T. Ogle

Gulf and Caribbean Research

Oyster spat produced from the experimental hatchery of the Gulf Coast Research Laboratory at Point Cadet, Biloxi, Mississippi, were grown under a variety of conditions. Recovery of spat planted on adjacent bay bottom was negligible, despite the use of either whole oyster valves, crushed oyster shell or clam shell as a substrate. Negligible growth occurred for spat held in vertical and horizontal water tanks. Growth of spat in horizontal tanks was affected by the density of stocking, with lower densities producing faster growth. Growth in all studies was slower than anticipated and a comparison on growth for spat from a …

Tanaidacea (Crustacea: Peracardia) Of The Gulf Of Mexico. Viii., Barbara J. Viskup, Richard W. Heard

Gulf and Caribbean Research

Pseudosphyrapus siegi, n. sp. is described from benthic samples collected in deep water (595-2400 m) from the northern Gulf of Mexico. Of the five currently recognized species of Pseudosphyrapus Cup, 1980, P. siegi is most closely related to P. dispar (Lang, 1968), a southwestem Pacific cognate and only other member of the genus having a squama on antenna 2. Pseudosphyrapus siegi is distinguished from P. dispar by: (1) a more triangular, but less acute, rostrum (2) the presence of two 4-pronged spines on the second maxilla (homologous spines on P. dispar are 3-pronged), and (3) the absence of a …

Records Of Deep-Water Chaetognaths From The Northern Gulf Of Mexico, Jerry A. Mclelland, Harriet M. Perry

Gulf and Caribbean Research

Fourteen species of deep-water Chaetognatha were present in plankton samples collected between 200 and 677 m at five stations along the continental slope of the northem Gulf of Mexico. Samples were taken in conjunction with the MARFlN Geryon cruises of 1987 and 1988. New Gulf of Mexico records resulting from this study were Eukrohnia calliops, Eukrohnia proboscidea, Mesosagitta sibogae, and Sagitta megalophthalma. Other deepwater species present were Eukrohnia fowleri, E. bathypelagica, E. bathyantarctica, Caecosagitta macrocephala, Mesosagitta decipiens, M. minima, Solidosagitta planctonis, Krohnitta subtilis, Flaccisagitta hexaptera, and F. lyra …

Invertebrates Associated With The Thinstripe Hermit Clibanarius Vittatus (Bosc) (Crustacea: Decapoda: Diogenidae) From The Barrier Islands Of Mississippi, Leslie Bruce

Gulf and Caribbean Research

Hermit crabs, the gastropod shells that they inhabit, and associated epifauna constitute a motile microhabitat. Twenty-three macroscopic. epifaunal invertebrates were associated with the diogenid crab Clibanarius vittatus in Mississippi coastal waters. Epibiotic growth may discourage predation of the crab, reduce competition for the shells, or provide an advantage in agonistic shell interaction. In addition, the shell provides a hard substrate for settling and attachment of epifauna in an area that is largely devoid of hard substrate. Reduced sedimentation and prevention of shell burial, improved food availability, transport, and protection from predation may also be advantageous to the epizoans.

Biological Control Of Crab Predation On Hard Clams Mercenaria Mercenaria (Linnaeus, 1758) By The Toadfish Opsanus Tau (Linnaeus) In Tray Cultures, Robert Bisker, Michael Castagna

VIMS Articles

Oyster toadfish Opsanus tau (Linne) were tested as biological controls of crab predation on juvenile hard clams Mercenaria mercenaria (Linne) in trays with crushed stone aggregate. Clam survival after 34 weeks was 69.5% in the presence of toadfish and 2.3% in trays without toadfish. Toadfish reduced the total number of crabs (mud crabs and blue crabs). Crabs in trays with toadfish present had smaller carapace widths.

Predation By The Oyster Toadfish Opsanus Tau (Linnaeus) On Blue Crabs And Mud Crabs, Predators Of The Hard Clam Mercenaria Mercenaria (Linnaeus, 1758), Robert Bisker, Mary Gibbons, Michael Castagna

VIMS Articles

The oyster toadfish, Opsanus tau (Linne), reduces predation by xanthid and portunid crabs on juvenile hard clams, Mercenaria mercenaria (Linne), in field cultures. This study examined the influence of size and species on the predator-prey relationship between toadfish and crabs. The mud crabs Eurypanopeus depressus (Smith), Neopanope sayi (Smith), and Panopeus herbstii Milne Edwards of 5-40 mm carapace width and blue crabs Callinectes sapidus Rathbun of 77-105 mm carapace width were offered to toadfish of 70-322 mm total length. Toadfish predation rates on mud crabs were higher with increasing toadfish size and lower with increasing crab size. Toadfish injured or …

Autotrophic Picoplankton Dynamics In A Chesapeake Bay Sub-Estuary, Rt Ray, Lw Hass, Me Sieracki

VIMS Articles

No abstract provided.

Develop A Fishery Stock Identification Laboratory And Identify Coastal And Estuarine Stocks That Are Dependent On The Chesapeake Bay And Its Tributaries, Brian W. Meehan

Reports

Final report for a cooperative agreement between the Northeast Fisheries Center and the Virginia Institute of Marine Science to determine short- and long-term factors affecting mortality and recruitment of key commercial and recreational species, including fishing mortality and both natural and man-induced environmental impacts on mortality and recruitment, project 3.0."

Includes M.S. thesis by Carol Furman- Mitochondrial DNA variation in striped bass, Morone saxatilis, from the Rappahannock River, Virginia.

Striped Bass Research, Virginia - Annual Report 1988-89, Virginia Institute Of Marine Science

Reports

The research reported herein (and in the 1982 through 1987 annual reports) is directly related to Priority III stated in the "Action Plan" (p. 15) of the Emergency Striped Bass Study (Anadromous Fish Conservation Act Amendment, Public Law 96-118). The amendment was the result of a decline in striped bass (Morone saxatilis) landings from Maine to North Carolina since the mid-1970's. This report summarizes the results of the Fall 1988 and Spring 1989 sampling periods and compares these results with the previous work.