Aquaculture and Fisheries Commons^™

Limb Regeneration After Multiple Autotomy And Coxae Removal In The Blue Crab Callinectes Sapidus, Jennifer Ambler

OES Theses and Dissertations

This study investigated limb regeneration in the juvenile blue crab, Callinectes sapidus, specifically the role of the coxa and pedal nerve innervation of the regenerative limb bud over time. The coxa is a leg segment that has been defined as the source of positional, cellular, and neuronal information needed for limb regeneration in brachyuran crabs. This study indicates that removal of coxae under regenerative and non-regenerative conditions did not deter limb regeneration. The coxa is not the exclusive location of limb regenerative information since limbs re-grew with normal positional and functional arrangement in 86% of crabs showing regeneration at removal …

Assessment Of The Flame Angelfish (Centropyge Loriculus) As A Model Species In Studies On Egg And Larval Quality In Marine Fishes, Chatham K. Callan

Electronic Theses and Dissertations

This project sought to determine if flame angelfish (Centropyge loriculus) could serve as models in examination of environmental and dietary effects on egg quality in marine fishes. Evaluation of 21 marine ornamental species identified flame angelfish as being amenable to egg quality research, due to their rapid conditioning and frequency of spawning. At the onset of this project, accidental copper introduction to broodstock systems required assays to determine the effects of copper exposure on survival and reproduction. Flame angelfish exhibited accute sensitivity to copper, as 60% of fish exposed to 0.25mg/L died within 12 hours of exposure. Likewise, fish exposed …

Spawning Chronology Of Native And Introduced Striped Bass (Morone Saxatilis) In Two Gulf Of Mexico Drainages, Matthew Noad

All Theses

In this study, I investigated the potential for temperature to serve as a mechanism for maintenance of reproductive isolation in a sympatric population of Atlantic and Gulf striped bass in the Apalachicola and Ochlockonee rivers, Florida. Adult striped bass (n= 66, mean weight = 8.3 kg, mean total length = 780.6 mm) were collected from February to May below Jim Woodruff Lock and Dam, on the Apalachicola River, and below Jackson Bluff Lock on the Ochlockonee River, Florida. Ancestry (Gulf or Atlantic) of specimens was determined based upon the methods of Wirgin et al. (2005) using three diagnostic microsatellite loci: …

Age, Growth, And Fecundity Of Alabama Shad (Alosa Alabamae) In The Apalachicola River, Florida , Travis Ingram

All Theses

Age and growth of Alabama shad Alosa Alabamae were estimated by examining scales and otoliths from 203 adult fish collected on their spawning run in the upper Apalachicola River from 2005 and 2006. Ages of Alabama shad ranged from 1 - 4 years. Scales and otoliths both gave similar age estimates. Age distributions from this study differed from those of previous studies for both males and females. Female Alabama shad, on average, were found to be larger than males at age 2 and age 3. Alabama shad demonstrated a positive correlation of length to fecundity, with fecundity estimates ranging from …

Population Size And Passage Efficiency Of Alabama Shad Reaching Jim Woodruff Lock And Dam, Patrick Ely

All Theses

In this study, I estimated the population size of migrating Alabama shad below Jim Woodruff Lock and Dam (JWLD) in the Apalachicola River located in the central panhandle of Northwest Florida using mark recapture and relative abundance techniques. The number of marked fish was adjusted for tag loss, emigration and mortality. The population size of migrating Alabama shad near JWLD was estimated at 26,029 (95% C.I. = 15,174 - 49,040) in 2005 and as 972 (95% C.I. = 270 - 9,720) in 2006. Due to the small sample size, a relative abundance method was used to independently estimate a population …

Fecundity And Survival Of The Calanoid Copepod Acartia Tonsa Fed Isochrysis Galeana (Tahitian Strain) And Chaetoceros Mulleri, Angelos Apeitos

Master's Theses

Historically, red snapper (Lutjanus campechanus) larviculture at the Gulf Coast Research Lab (GCRL) used 25 ppt artificial salt water and mixed, wild zooplankton composed primarily of Acartia tonsa, a calanoid copepod. Acartia tonsa was collected from the estuarine waters of Davis Bayou and bloomed in outdoor tanks from which it was harvested and fed to red snapper larvae. We are developing a more controlled copepod mass culture system to support finfish larviculture. To that end, I examined the effect of single species versus mixed species of algae as food for the copepods. Wild A. tonsa were isolated and reared in …

Captive Propagation Of Tangerine Darters For Re-Introduction In The Pigeon River, Tennessee, Craig Lee Phillips

Masters Theses

The Pigeon River suffered major water quality degradation from 1908 through the 1980’s from paper mill effluent which resulted in the extirpation of many native fish species. Mill modifications have cleaned the effluent to the degree where some native species are recolonizing many areas of the river. In 2001, the Pigeon River Restoration Project was initiated to re-introduce native non-game species which have been unable to return of their own accord. In addition to relocation of selected suitable species, captive production of the tangerine darter (Percina aurantiaca) has been attempted since current translocation methods have proven impractical due …

Molecular Phylogenetics Of Perciform Fishes Using The Nuclear Recombination Activating Gene 1, Andrew R. Mahon

Biological Sciences Theses & Dissertations

The order Perciformes contains one-third of all extant fishes in twenty different suborders and over 10,000 species. Few systematic investigations have been performed on this large group of fishes at the suborder level and their evolutionary history is widely recognized as problematic. This dissertation presents three studies: a molecular phylogenetic analysis of the putative suborders of the order Perciformes, an analysis of interrelationships of the families of the perciform suborder Percoidei, and a multi-gene investigation of the percoid superfamily Sparoidea.

The taxa sampled in this dissertation represent one of the most inclusive molecular datasets, to date, testing the monophyly of …

A Taxonomic Study Of The Morphological Variation And Intergradation Of Chrysemys Picta (Schneider) (Emydidae, Testudines) In West Virginia, Melissa R. Mann

Theses, Dissertations and Capstones

Two subspecies of Chrysemys picta (C. p. picta and C. p. marginata) occur in West Virginia. The Allegheny Mountains have historically separated the distribution of C. p. picta and C. p. marginata; however, intergrades occur where ranges overlap. These intergrades display morphological characteristics that are often intermediate to the original subspecies. Morphological variation of C. picta was examined by comparing specimens from possible areas of C. p. picta x C .p. marginata intergradation in West Virginia to geographic areas that are not exposed to subspecies distribution overlap. Characters traditionally used to separate C. p. picta and C. p. marginata were …

Morphological And Molecular Analyses Of The Blacknose Dace Species Complex (Genus Rhinichthys) In A Large Zone Of Contact In West Virginia, Geoffrey D. Smith

Theses, Dissertations and Capstones

The blacknose dace species complex (Rhinichthys atratulus, Rhinichthys obtusus obtusus, and Rhinichthys obtusus meleagris) are among the most common freshwater fishes in eastern North American. Despite this fact, the taxonomy of this group is still in question. This study focuses on the relationship of the members of this species complex along an unusually large zone of contact in the high Appalachian Mountains of West Virginia. Morphological, distributional, and molecular analysis of the relationships of this complex were conducted in this area to try to shed light on the systematics of this group. Morphological analysis of coloration patterns of nuptual males …

A Study Of The Genus Desmognathus In West Virginia, With Emphasis On Desmognathus Welteri, The Black Mountain Salamander, Tristan Bond

Theses, Dissertations and Capstones

The Black Mountain Salamander, Desmognathus welteri, is listed as S2 by the WVDNR. Given the threat of extirpation, this species is in need of studies to facilitate a conservation effort. The following studies were completed as part of this work: Comparative morphology of the genus Desmognathus in West Virginia; Distribution of D. welteri in West Virginia; Habitat partitioning of Desmognathine salamanders; and Phenology of Desmognathus spp. Ratios of morphometrics of the tail were found to be most useful for distinguishing Desmognathus spp. D. welteri was found in three of 22 streams searched, meaning there are now 21 documented occurrences of …

Habitat Preferences Of The Eastern Hellbender In West Virginia, S. Conor Keitzer

Theses, Dissertations and Capstones

The Eastern Hellbender, Cryptobranchus alleganiensis alleganiensis, is a species of concern in West Virginia and is in need of management. An important component of conservation efforts will involve identifying suitable habitat for protection. The goal of this research was to locate populations and examine hellbender habitat preferences to help managers identify habitat for protection. Populations were located using rock turning surveys from May through November, 2006. Hellbenders may be sensitive to water chemistry, so the dissolved oxygen, pH, turbidity, specific conductivity, and water temperature were measured. Substrate composition may influence populations, so substrate was characterized with Wolman pebble counts. …

Integrated Coastal Spatial Allocation And Planning Of Aquaculture In A Geographical Information System Approach, Andrew Ehiabhi Akhighu

World Maritime University Dissertations

No abstract provided.

Comparison Of Three Survey Methods Applied To The Recreational Rock Lobster Fishery Of Western Australia., Tara Baharthah

Theses: Doctorates and Masters

A mail survey of recreational rock lobster licence holders has been conducted annually since 1986. The results from this survey have been used in the management of the recreational rock lobster fishery in Western Australia. Mail surveys are susceptible to non-response and recall bias. The key to determining useful estimates of fishing catch and effort is to minimise both biases. Telephone recall surveys, with high response rates, effectively eliminate nonresponse bias. However, they still suffer from recall bias when the recall period is greater than two months. Telephone diary surveys are free of non-response bias and recall bias and provide …

Characterization Of Exotic Pathogens Associated With The Suminoe Oyster, Crassostrea Ariakensis, Jessica A. Moss

Dissertations, Theses, and Masters Projects

The eastern oyster, Crassostrea virginica, once an integral part of the ecology and economy of Chesapeake Bay, has been severely depleted. Factors leading to the decline of the eastern oyster include over-harvesting, environmental degradation and disease pressure caused by the protozoans Haplosporidium nelsoni and Perkinsus marinus, known commonly as MSX and Dermo, respectively. Studies regarding the feasibility of introducing a nonnative oyster to the Bay were initiated, and field-based research on an Asian oyster, Crassostrea ariakensis, suggested that it might be a viable species for introduction. Research surrounding the proposed introduction has focused on recommendations such as those from the …

Trophic Ecology And Growth Dynamics Of Striped Bass (Morone Saxatilis) In Chesapeake Bay, With Reference To Mycobacteriosis, Kathleen Anne Mcnamee

Dissertations, Theses, and Masters Projects

No abstract provided.

The Extent Of Interaction Between The Scallop And Prawn Fleets In The Shark Bay Scallop Managed Fishery, John Dickson

Theses : Honours

The Shark Bay Managed Scallop Fishery is Western Australia's most important scallop fishery with an annual value of between $2 and $58 million. In addition to this the fishery is an important source of regional employment with approximately 160 skippers and crew employed during the 2005 season. Two separate fleets are permitted to fish for scallops in this fishery, the first consisting of dedicated scallop fishing vessels (Class A licences) and the second of prawn fishing vessels (Class B licences) that are allowed to take scallops under a catch sharing arrangement. Concerns exist over the interactions between these two fleets …