Marine Biology Commons^™

Pagurapseudes (Crustacea: Tanaidacea) In Southeastern Florida: Functional Morphology, Post-Marsupial Development, Ecology And Shell Use, Charles Messing

Oceanography Faculty Theses and Dissertations

Members of the genus Pagurapseudes occupy vacant microgastropod shells. Functional and behavioral convergence with paguridean decapods (hermit crabs) is treated using a combination of gross morphological, histological and scanning electron microscopic analyses, as well as observations of living animals. Post-embryological development is described and compared with that of other tanaidaceans. The proposed life history differs from that of other tanaidaceans in several respects and is the first described for any member of the suborder Monokonophora based on investigations using experimentally reared specimens. Variations in a population over the course of 1.5 years are discussed as are apparent habitat preferences. Preferences …

News Notes, Southeastern Fishes Council

Southeastern Fishes Council Proceedings

No abstract provided.

The Status Of The Southern Redbelly Dace, Chrosomus Erythrogaster, In Mississippi, Robert C. Cashner, Royal D. Suttkus, Frank L. Bezold, James M. Grady

Southeastern Fishes Council Proceedings

No abstract provided.

Number 9 (November 1979), Southern Fishes Council

Southeastern Fishes Council Proceedings

The Status of the Southern Redbelly Dace, Chrosomus erythrogaster in Mississippi. By R.C. Cashner, et al., plus News Notes, 5 pp.

X-Rays Provide Researchers With Views Of Coral Growth Patterns, Richard E. Dodge

Marine & Environmental Sciences Faculty Articles

No abstract provided.

Structure Of A Subtidal Benthic Community Near Cape Charles, Virginia, R. Michael Ewing

Biological Sciences Theses & Dissertations

Species composition, distribution, and abundance of benthic invertebrates of a subtidal community were examined at a location on the lower Delmarva Peninsula near Cape Charles, Virginia. Macrobenthos was sampled quarterly between June, 1977 and June, 1978 at nine sites along a transect in Old Plantation Creek and the adjacent offshore area. Spatial and temporal patterns of numerically important species are discussed.

Sampling sites and species were grouped by a numerical classification strategy which consisted of the Bray-Curtis similarity measure and group-average clustering. Three faunal assemblages were identified with the aid of constancy and fidelity nodal analyses: (1) a tidal creek …

Atmospheric Forcing Of The Bight Of Abaco, Peter M. Smith

HCNSO Student Theses and Dissertations

No abstract provided.

Reproductive Variability In Lytechinus Variegatus (Echinodermata: Echinoidea) From Different Habitats In A Florida West Coast Estuary, Robert G. Ernest

USF Tampa Graduate Theses and Dissertations

Lytechinus variegatus (Lamarck, 1916) is a sea urchin inhabiting shallow sub-littoral environments from Beaufort, North Carolina to southern Brazil. Although it has been collected extensively for embryological material in the southeastern United States (Harvey, 1956; Brookbank, 1968). there have been relatively few studies of its reproduction. Gonad indices were used to follow its annual reproductive cycle at Bermuda and Miami (Moore et al., 1963; Moore and Lopez, 1972), while elsewhere, only observations of spawn- ing have been reported (Boolootian, 1966).

In the Anclote estuary near Tarpon Springs, Florida, Lytechinus is the most conspicuous of the macroepibenthic invertebrates, and where requisite …

Feeding Morphologies And Distribution Patterns Of Marine Cladocera In The Lower Chesapeake Bay, Sandra Layne Gilchrist

OES Theses and Dissertations

Temporal and spatial distributions of marine cladocera in the lower Chesapeake Bay estuary were observed over a year-long sampling period. The distributions of cladoceran species throughout the Bay were studied in relation to temperature and salinity. A survey of the species over the entire Bay is included to establish distribution patterns of the various species during a short time period.

Theoretical mathematical principles were used to predict feeding abilities of the Bay species. Mouthparts are described qualitatively and quantitatively to infer function. A mandibular index developed by Itoh (1970) was revised and employed in evaluating feeding methods interspecifically and interspecifically. …

The Spatial And Temporal Distribution Of Fish Eggs And Larvae In Hempstead Bay Estuary, Joseph Adelard Lessard

OES Theses and Dissertations

The ichthyoplankton of Hempstead Bay estuary was sampled from December 1972 to mid March 1974. Eleven stations were sampled by towing a 0.5 meter diameter plankton net. Eggs were most abundant during June and July with an average concentration calculated to be above 5,500/100m³. Egg densities were the lowest during the fall and winter. Larvae were most frequently taken from March through July with densities varying greatly among the samples. The eggs of Brevoortia tyrannus, Anchoa mitchilli, Tautoga onitis, Tautogolabrus adspersus, and Scophthalmus aguosus and the larvae of Menidia menidia, Ammodvtes hexapterus and Pseudopleuronectes americanus constituted most …

Isolation And Identification Of Yeasts From The Barren River, Richard Vanenk

Masters Theses & Specialist Projects

The Barren River was sampled twice monthly for one year to obtain data on aquatic yeasts. Sites upstream and downstream of the Bowling Green sewage plant, as well as the sewage effluent, were sampled to ascertain if the effluent had any effect on the yeast population of the river. Sporadic yeast counts were obtained which averaged 40 CFU/ml for the effluent, while the river averaged 15 CFU/ml. A total of 318 yeasts were isolated and identified during the study, including 16 different genera with Cryptococcus being the most common. Cryptococcus laurentii occurred most frequently of the 67 different species identified. …

Some Aspects Of The Ecology Of Larval Fishes In Rough River Lake, Kentucky, Greg Allen Kindschi

Masters Theses & Specialist Projects

In Rough River Lake, Kentucky, some aspects of the ecology of larval and juvenile fishes were investigated from April – August, 1978. Larval fishes were collected weekly from the upper reaches of the lake from the surface and bottom, during daylight and dark periods.

Twenty-three species and three categories of unknown larval and juvenile fishes, represented by 177,119 individuals, were collected. White bass and logperch larvae were the first to appear on April 15 with surface water temperatures of 18.5 C. Gizzard shad larvae dominated net collection while Lepomis spp. were the second most abundant. Larvae were primarily concentrated …

Number 8 (April 1979), Southern Fishes Council

Southeastern Fishes Council Proceedings

Distributional Notes on Fishes from Northern Georgia with Comments on the Status of Rare Species. By R.T. Bryant, et al., 4 pp.

Distributional Notes On Fishes From Northern Georgia With Comments On The Status Of Rare Species, Richard T. Bryant, Bruce H. Bauer, Michael G. Ryon, Wayne C. Starnes

Southeastern Fishes Council Proceedings

No abstract provided.

Fisheries Report No. 37 - An Inventory Of The Marine Resources Of The Bunbury Marine Area And Geographe Bay, Michael H. Walker

Fisheries Research Reports

The marine resources of the Geographe Bay/Bunbury marine area were investigated using a variety of fishing gear i.e. set lines, set nets, trawls, ring nets, beach seines, hand lines, trolling lines, traps and light attraction at night. All the ftsh species caught were documented as to breeding state and food habits.

Commercial species encountered as adults during fishing operations were: bronze whaler, whiskery and gummy sharks, Westralian jewfish, Australian herring, skippy, flathead, oriental bonito, blue and sandy sprat, pilchard, mulloway, whiting, yellowtail scad, flounder, and leatherjacket and as juveniles were: skippy, yellowtail scad, tailor, southern sea garfish, pilchard, blue and …

Fisheries Report No 33 - The Western Rock Lobster Fishery 1975 - 1976, G. R. Morgan, E H. Barker

Fisheries Research Reports

iTshe fishery for the western rock lobster Panultrus ecygnus one of the most important single fisheries in Australia and an important export earner for the State. The fishery is governed by a complex set of regulations which have been reviewed by Bowen (1971) and which are designed to limit the total effort to acceptable levels and to enforce a legal minimum size. It is thus important to constantly monitor the state of the fishery both to ensure that the effort is remaining within the accepted limits and that the regulations are adequately performing their function of maintaining reasonably stable catches. …

Fisheries Report No 38 - The Shark Bay Prawn Fishery (1970 - 1976), J. W. Penn, R. W. Stalker

Fisheries Research Reports

The existence of prawn stocks in Shark Bay, Western Australia, has been known since 1904 when the sailing ketch "Rip" on charter to the Western Australian Government, trawled large quantities of prawns from the area between Bernier Island and the mainland, Gale (1905). Although the Fisheries research vessel "Lancelin" trawled potentially commercial quantities of prawns from Shark Bay in the early 1950's, it was not until 1962 that a regular fishery was begun.

Today the prawn stocks of Shark Bay support Western Australia's largest and most consistent prawn fishery, having an annual production currently exceeding 2 000 tonnes. The catch …

A New Species Of Cerapus Say, 1817 (Crustacea: Amphipoda) From The Northern Gulf Of Mexico, With Notes On Its Ecology, James Darwin Thomas, Richard W. Heard

Marine & Environmental Sciences Faculty Articles

During research in coastal marshes of the Mississippi Delta region in 1975, a large, undescribed amphipod belonging to the genus Cerapus was discovered in tidal channels. This new species, C. benthophilus, is characterized by its large size and 7-12 segmented antennal flagella. Habitat preference is muddy silt bottoms upon which it constructs conspicuous mats or "tufts" of interwoven tubes in shallow coastal bays and marshes from Louisiana to the panhandle areas of northern Florida.

A Redescription Of The Wood-Rasping Amphipod Trophichelura Gomezi Ortiz, 1976 (Cheluridae) From The Florida Keys, With Notes On Its Distribution And Ecology, James Darwin Thomas

Marine & Environmental Sciences Faculty Articles

The wood-rasping amphipod, Tropichelura gomezi Ortiz, 1976, is redescribed from the Florida Keys to include diagnostic characters omitted in the original description. Morphological characters and distributional patterns of T. gomezi are compared with those of the other member of the genus, Tropichelura insulae (Caiman, 1910). Laboratory studies show that T. gomezi defends its burrow entrance from other members of its species, but tolerates the presence of limnoriid isopods with which it cooccurs. A lectotype for Tropichelura insulae is designated .

Patterns Of Suspended Particle Transport In A Mississippi Tidal Marsh System, Courtney T. Hackney, Armando A. De La Cruz

Gulf and Caribbean Research

The flux of suspended particulate organic detritus (POD) and suspended inorganic detritus (PID) was studied during ten diurnal tidal periods (24-hour) and three semidiurnal tidal periods (12-hour) between May 1975 and April 1976. The concentration of POD ranged from 1.50 to 19.79 mg/l, while the PID ranged from 3.20 to 99.61 mg/l. There was a net export of POD during four of 13 tidal periods and a net export of PID during five tidal periods. There was a total net movement of 39.32 and 292.51 kg of POD and PID, respectively, into the marsh. On an annual basis, this is …

An Annotated Key To The Mysidacea Of The North Central Gulf Of Mexico, Kenneth C. Stuck, Harriet M. Perry, Richard W. Heard

Gulf and Caribbean Research

An annotated key is provided to 17 species in 11 genera of the order Mysidacea from the north central Gulf of Mexico. All species are illustrated. The occurrence of Bowmaniella dissimilis is reviewed in light of Holmquist’s (1975) renaming of E. dissimilis sensu Brattegard (1970). Reports of several species of Metamysidopsis are discussed. The possible hybridization of two species of Taphromysis is considered.

Marine Fishes Of Panama As Related To The Canal, Gordon Gunter

Gulf and Caribbean Research

Recent papers by Eskinazi, compared to studies made on the Texas and Louisiana coasts 35 to 45 years ago and on the south Atlantic coast 15 years ago, show remarkable similarities of the estuarine fishes of northeastern Brazil and the northern Gulf of Mexico. Forty-five of 48 families of the two areas are in common and about 35% of the species are in common. On the west coast even greater correspondence might be expected between fishes of Peru and southern California, were it not for the restriction of tropical fishes by the Humboldt and California currents.

When the lithospheric plate …

Adaptation Of A Brown Water Culture Technique To The Mass Culture Of The Copepod Acartia Tonsa, John Ogle

Gulf and Caribbean Research

The use of bay water, filtered to 5 microns, was found to be sufficiently nutritious to sustain an average of 232,000 adult Acartia tonsa per m³. Copepods survived up to 24 days as adults and produced up to 75 nauplii per adult. Nauplii could be sieved to produce copepods of known age or known parentage. Survival of nauplii to adults ranged from 15 to 88%. Culture water varied from 6 to 28^oC in temperature, and from 1 to 26 ppt in salinity.

Diet Of The Periwinkle Littorina Irrorata In A Louisiana Salt Marsh, Steve K. Alexander

Gulf and Caribbean Research

The diet of the periwinkle Littorina irrorata was examined. The food substrate utilized most frequently in the field was dead Spartina alterniflora. The primary component of the stomach and feces was vascular plant particles. Plant particles, even though a major portion of the diet, were egested unaltered in feces. Other food substrates contributed significantly to the diet. Marsh sediment was utilized by 37% of all snails observed to be feeding, while 4% grazed on live S. alterniflora. Algal mats, present on several occasions during the study, were utilized extensively. Comparison of microbial components in dead S. alterniflora and …

Notes On Sea Beach Ecology. Food Sources On Sandy Beaches And Localized Diatom Blooms Bordering Gulf Beaches, Gordon Gunter

Gulf and Caribbean Research

Food production along sandy beaches is much different from that of rocky beaches. No large algae grow on sand beaches. Small filamentous green algae find footholds upon molluscs, mole crabs, strands of Leptogorgia and logs. Basic food along the sand beach is made up of diatoms, bacteria, unicellular algae and detritus; diatoms are probably the most abundant autotrophic organism; the beach bacteria are largely heterotrophic. Most food on sandy beaches comes from the sea. The sandy shore seems to be barren, but it swarms with plant and animal life. Food production has a seasonal aspect. Food strands more abundantly on …

A Study Of Four Oyster Reefs In Mississippi, John Ogle

Gulf and Caribbean Research

A study of four oyster populations in Mississippi over 13 months (May 1978-May 1979) indicates that although oysters are sexually developed during most of the year (10 months), setting was variable in intensity, dependent upon location, and limited in all cases to one or two months. Mortality was variable, dependent upon location and was attributed to high predation at one station and to harvesting and fresh water at the other stations studied. Suggestions for management are discussed.

News Notes, Southeastern Fishes Council

Southeastern Fishes Council Proceedings

No abstract provided.

Whatever Happened To The Silvery Minnow (Hybognathus Nuchalis) In The Tennessee River?, David A. Etnier, Wayne C. Starnes, Bruce H. Bauer

Southeastern Fishes Council Proceedings

No abstract provided.

Number 7 (January 1979), Southern Fishes Council

Southeastern Fishes Council Proceedings

Whatever Happened to the Silvery Minnow (Hybognathus nuchalis) in the Tennessee River? By D.A. Etnier et al., plus News Notes, 4 pp.

Studies Of The Southern Oyster Borer, Thais Haemastoma, Gordon Gunter

Gulf and Caribbean Research

Original work was carried on at the U.S. Bureau of Fisheries Laboratory on Apalachicola Bay from August 1935 to April 1936. Since then observations have been made in Texas, Louisiana and Mississippi. Five papers on specific aspects of the biology of the animal have been written since on this and other predatory gastropods. Here all commentaries are drawn together and unpublished matter is presented.

The name Thais haemastoma is used because separations based upon the rugosity of the shells do not hold up. Perfectly smooth and very rugose specimens are found in the same bays, with various shell characteristics being …