Aquaculture and Fisheries Commons^™

Influence Of Physiochemical And Watershed Characteristics On Mercury Concentration In Walleye, Sander Vitreus, M., Cari-Ann Hayer, Steven R. Chipps, J. J. Stone

Natural Resource Management Faculty Publications

Elevated mercury concentration has been documented in a variety of fish and is a growing concern for human consumption. Here, we explore the influence of physiochemical and watershed attributes on mercury concentration in walleye (Sander vitreus, M.) from natural, glacial lakes in South Dakota. Regression analysis showed that water quality attributes were poor predictors of walleye mercury concentration (R² = 0.57, p = 0.13). In contrast, models based on watershed features (e.g., lake level changes, watershed slope, agricultural land, wetlands) and local habitat features (i.e., substrate composition, maximum lake depth) explained 81% (p = 0.001) …

Fisheries-Dependent Indicators Of Climate Change In Western Australia Wamsi:Sub-Project 4.2.3, Nick Caputi, Alan Pearce

Fisheries research reports

The use of fishery-dependent data may be a cost-effective way of assessing whether there have been any changes in the distribution and relative abundance of species. Such indicators are part of an ongoing data gathering system and the costs are relatively low compared to those of a fishery-independent field program. Fishery-dependent data may therefore be obtained at a higher frequency and allow detection of changes faster than would be possible from the results from the direct sampling of specific sites within entire ecosystems.

Distributions Of Sharks Across A Continental Shelf In The Northern Gulf Of Mexico, J. Marcus Drymon, Sean P. Powers, John Dindo, Brian Dzwonkowski, Terry A. Henwood

University Faculty and Staff Publications

Declines in shark populations have sparked researchers and fishery managers to investigate more prudent approaches to the conservation of these fish. As managers strive to improve data collection for stock assessment, fisheries-independent surveys have expanded to include data-deficient areas such as coastal regions. To that end, a catch series from a nearshore survey off Alabama was combined with data from a concurrent offshore survey with identical methodology to examine the depth use of sharks across the continental shelf (2–366 m). The combined data set contained 22 species of sharks collected from 1995 to 2008: 21 species in the offshore data …

Communication For Mate Selection In Anurans: Dominant Frequency Versus Snout-Vent-Length, Shari Jean Kunert

Department of Environmental Studies: Undergraduate Student Theses

No abstract provided.

Diatoms As Indicators Of Water-Level Change In Freshwater Lakes, Julie A. Wolin, Jeffrey R. Stone

Biological, Geological, and Environmental Faculty Publications

Water-level changes result from a variety of geological, biological, and/or climatic processes. Many of these changes occur over long periods; others may be rapid or result from catastrophic events. In aquatic environments, diatoms are highly sensitive indicator organisms and their microfossils, deposited in lake sediments, can be used to infer environmental changes (Smol, 2008). Unambiguous diatom signals can be reconstructed from lakes isolated from marine or brackish waters (e.g. Fritz et al., this volume; Horton & Sawai, this volume). However, in freshwater systems lake-level changes are often recorded as increases in planktonic (free-floating) diatoms – although as discussed below, interpretation …

Match- Mismatch Regulation For Bluegill And Yellow Perch Larvae And Their Prey In Sandhill Lakes, Jeffrey C. Jolley, David W. Willis, Richard S. Holland

Natural Resource Management Faculty Publications

Food availability may regulate fish recruitment, both directly and indirectly. The availability of zooplankton, especially to newly hatched larvae, is thought to be crucial to their early growth and survival. We examined stomach contents of larval bluegill Lepomis macrochirus and yellow perch Perca flavescens in Pelican Lake and Cameron Lake, Nebraska, in 2004 and 2005. We also determined zooplankton availability and calculated prey selection using Chesson’s a. In addition, we investigated potential match–mismatch regulation of recruitment from 2004 to 2008. Bluegill positively selected copepod nauplii and Bosmina spp., and yellow perch often selected copepods. Abundant zooplankton populations were available for …

Life History, Trophic Ecology, & Prey Handling By Cownose Ray, Rhinoptera Bonasus, From Chesapeake Bay, Robert A. Fisher

Reports

No abstract provided.

Marine Aquarium Fish Managed Fishery, K. A. Smith, Stephen J. Newman, G. M. Cliff

Ecologically Sustainable Development (ESD) series

Ecologically Sustainable Development (ESD) is the concept that seeks to integrate short and long-term economic, social and environmental effects in all decision-making. The Western Australian Government is committed to the concepts of ESD and these principles are implicitly contained in the objectives of the Fisheries Resources Management Act 1994 (FRMA).

Unlv Magazine, Tony Allen, Shane Bevell, Donna Mcaleer, Ched Whitney, Cate Weeks

UNLV Magazine

No abstract provided.

Ranked Risk Assessment For Bycatch In Multiple Fisheries: A Bioregional Risk Assessment Method, Richard Evans, Brett W. Molony

Fisheries research reports

This report demonstrates a method to rapidly assess the cumulative risk to sustainability of bycatch species of multiple fisheries. The method draws on other techniques already published in scientific literature and adds a new cumulative ranked estimate of total catch across multiple fisheries.

An Examination Of Methods: Hand Picking Red Crabs And Keeping Them Alive On Shore, Dan Kauffman, Robert A. Fisher

Reports

No abstract provided.

Evaluating Source-Sink Relationships Of The Western Rock Lobster Fishery Using Oceanographic Modelling: Final Frdc Report – Project 2008/087, Nick Caputi, Ming Feng, James Penn, Dirk Slawinski, Simon De Lestang, Evan Weller, Alan Pearce

Fisheries research reports

Objectives 1. To determine the relative contribution of larval production from different areas to the abundance and spatial distribution of puerulus settlement over 15 years using a larval advection model

Estuarine Blue Infrastructure: Final Priority Conservation Areas For Chesapeake Bay And Its Tidal Tributaries And Back Bay – Version 2.0 (Revised 09/2010), Center For Coastal Resources Management, Virginia Institute Of Marine Science

Reports

This project is an extension of earlier efforts within the coastal zone of Virginia to build a platform for enhanced Blue and Green Infrastructure planning. This project is motivated by an interest in extending statewide conservation efforts into estuarine systems and recognition that land use decisions on the upland effect water quality and habitat health in the receiving waters. The project in its entirety has been accomplished in distinct parts. Part one develops a Cumulative Resource Assessment to evaluate the distribution of aquatic natural resources within waters of Virginia’s Chesapeake Bay waters, Back Bay of Virginia Beach, Virginia, and the …

Evaluation Of The Recreational Marron Fishery Against Environmental Change And Human Interaction: Final Frdc Report – Project No. 2003/027, Martin De Graaf, Stephen Beatty, Brett M. Molony

Fisheries research reports

The distribution of marron in the southwest of Australia has seen many changes since European settlement. Reconstructions of their range from historical records suggested that marron inhabited the waters between the Harvey River and Denmark River. Due to translocation, their range has expanded as far north as the Hutt River and as far east as Esperance. Although at present marron still exist in all the original rivers within the southwest, their distribution within these rivers has contracted. Poor water quality, salinity, low rainfall and environmental degradation in the upper and lower reaches have restricted marron populations.

Evaluating Recruitment Of American Eel, Anguilla Rostrata, In The Potomac River (Spring 2010), Troy D. Tuckey, Mary C. Fabrizio

Reports

The Atlantic States Marine Fisheries Commission (ASMFC) adopted the Interstate Fishery Management Plan (FMP) for the American eel in November 1999. The FMP focuses on increasing coastal states’ efforts to collect American eel data through both fishery-dependent and fishery-independent studies. Consequently, member jurisdictions agreed to implement an annual survey for young of year (YOY) American eels. The survey is intended to “…characterize trends in annual recruitment of the YOY eels over time [to produce a] qualitative appraisal of the annual recruitment of American eel to the U.S. Atlantic Coast” (ASMFC 2000). The development of these surveys began in 2000 with …

An Assessment Of Sea Scallop Abundance And Distribution In Selected Closed Areas: Georges Bank Closed Area I And Hudson Canyon Closed Area, David B. Rudders, William D. Dupaul

Reports

No abstract provided.

Protecting Inshore And Demersal Finfish Identification Of Critical Habitats For Juvenile Dhufish Workshop Report, Gabby E. Mitsopoulos, Brett W. Molony

Fisheries research reports

A Juvenile Dhufish Workshop was held at the Western Australian Fisheries and Marine Research Laboratories (WAFMRL) on 18th March 2010, which was the first component of a State Natural Resource Management (NRM) funded project entitled “Protecting Inshore and Demersal Finfish - Identification of Critical Habitats for Juvenile Dhufish”. The primary objective of the workshop was to provide a forum for discussion in order to compile all biological, ecological and anecdotal information on the early life history of dhufish, to create hypotheses of habitat requirements for juvenile dhufish and provide recommendations as to which sampling methods should be used to confirm …

Review Of The Exploitation Of Marine Resources Of The Australian Indian Ocean Territories: The Implications Of Biogeographic Isolation For Tropical Island Fisheries, Matthew Hourston

Fisheries research reports

The small islands of the Indian Ocean Territories are isolated reefs in an expanse of open ocean of abyssal depth. The majority of marine species that live on their reefs and lagoons have settled there from remote locations. Colonising individuals are presumed to have come to the island as the result of unusual weather and current conditions and form populations that are, necessarily, largely self-sustaining. The isolated populations that make up many of the fish and invertebrate stocks at the Cocos (Keeling) and Christmas Islands rely almost exclusively on larvae returning to their home reef to settle, grow and ultimately …

Environment-Induced Phenotypic Plasticity In The Teeth Of Hatchery And Wild Largemouth Bass, Micropterus Floridanus, Tamilselvi Selvaraj

Masters Theses & Specialist Projects

Successful stock enhancement of hatchery-reared fish depends heavily on the release of individuals able to demonstrate strong survival skills. Overall survival of fishes is a reflection of a successful blend of physiology, anatomy, and behavior. With fishes being highly phenotypically plastic, the potential exists for all aspects of hatcheryreared fish to vary significantly from their wild counterparts while having potentially adverse effects on their survival after release. Previous analyses have demonstrated significant differences between the feeding behavior of hatchery-reared and wild caught largemouth bass (Micropterus floridanus) in the laboratory, as well as differences in the development of the …

Age, Reproduction, Growth, Condition And Diet Of The Introduced Yellow Bass, Morone Mississippiensis, In Barren River Lake, Kentucky, Peter G. Zervas

Masters Theses & Specialist Projects

Introduction of fish species to North American drainages has occurred for over 100 years. Introduced fish species have been documented to have adverse effects on both the environment and native species of the drainage into which they have been introduced. To better understand the effects that introduced species may have on a particular drainage, it is essential to understand aspects of the introduced species’ life history. The objectives of the current study is to quantify the age, reproduction, growth, condition and diet of the yellow bass, Morone mississippiensis, in Barren River Lake, Kentucky. Monthly collections from three areas on …

The Effects Of Growth Hormone In The Inner Ear Of Zebrafish (Danio Rerio) During Hair Cell Regeneration, Chia-Hui Lin

Masters Theses & Specialist Projects

Although deafness is a universal problem, effective treatments have remained elusive. In order to develop potential treatments, an overall understanding of the cellular process of auditory hair cell regeneration, which occurs in fish but not mammals, must be established. A previous microarray analysis and qRT-PCR validation of noise-exposed zebrafish showed that growth hormone (GH) was significantly upregulated during the process of auditory hair cell regeneration. Thus, GH may play an important role during hair cell regeneration. However, cellular effects of exogenous GH in the zebrafish auditory hair cell regeneration have not been examined after noise exposure. To understand the effect …

2010 Annual Report Estimating Relative Juvenile Abundance Of Ecologically Important Finfish In The Virginia Portion Of Chesapeake Bay Project Number: F-104-R-14, Troy D. Tuckey, Mary C. Fabrizio

Reports

No abstract provided.

In Vitro Enabling Technologies For Use In The Aquatic Environment, Colm J. O'Dowd

Doctoral

O’Dowd, C., Mothersill, C.E., Cairns, M.T., Austin, B., Lyng, F.M., McClean, B. and Murphy, J.E.J. Assessing the mitochondrion as a biomarker of fish tissue damage using g radiation as a stress model in vitro.

There is an ever-increasing need for biomarkers to identify toxic stress in the aquatic environment. Such techniques need to be accurate, expeditious, ethical and economical. Typically, in vitro based platforms fit these criteria however many of these systems often undergo ‘assay drift’ and consequently do not fully represent the real-life situation.

In recent years, there has been growing interest in the mitochondrion and its (dys)function …

The Lobster Bulletin, Fall 2010, Lobster Institute, University Of Maine

Lobster Bulletin

The Lobster Bulletin newsletter includes research updates, and information on lobsters and the lobster industry. The Lobster Institute at the University of Maine is dedicated to protecting and conserving the lobster resource, and enhancing lobstering as an industry and a way of life.

Headlines in the Fall 2010 issue include:

• The Heanssler Family: Three Generations of Volunteer Lobster Researchers
• Lobstermen Qualify for TAAF Program — Can Apply for Training & Cash Benefits
• Update on Lobster Science Centre's Molt & Qualify Monitoring Available
• Research Report: Habitat Mooring System Showing Early Results
• Research Report: Vertical Line Density Research

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The Lobster Bulletin, Summer 2010, Lobster Institute, University Of Maine

Lobster Bulletin

The Lobster Bulletin newsletter includes research updates, and information on lobsters and the lobster industry. The Lobster Institute at the University of Maine is dedicated to protecting and conserving the lobster resource, and enhancing lobstering as an industry and a way of life.

Headlines in the Summer 2010 issue include:

• Mooring That Creats Lobster Habitat Now Available — Portion of Sales to Support Mission of the Lobster Institute
• Input Sought for Lobster Institute Strategic Plan
• The Lobster Institute's 2010 Needs Assessment Survey
• Research Report: Bait: How Much is Enough?
• Research Report: Lobster Assessment Models Compared
• Research Report: Paper on Modeling …

Integrated Fisheries Management Draft Allocation Report – West Coast Demersal Scalefish, Integrated Fisheries Allocation Advisory Committee. Western Australian Dept. Of Fisheries

Fisheries management papers

Integrated Fisheries Management (IFM) is an initiative aimed at addressing the issue of how fish resources in Western Australia can be best shared between competing users within the broad context of ‘Ecologically Sustainable Development’ (ESD) so that they can be managed on a sustainable basis.

Coastal And Marine Resource Condition Monitoring – Scoping Project: Final Nrm Report – Project 073007, Brett A. Human

Fisheries research reports

The marine and coastal environment of the Pilbara and Kimberley region in north-western Western Australia contains many assets, including remote and near pristine habitats, unique habitats within Australia, unique fauna and flora; as well as assets of value to commercial and industrial ventures; and for recreational human usage. However, there is a lack of monitoring in the Pilbara and Kimberley marine and coastal environments. This is in large part due to the remoteness of the area, making access difficult, and consequently making monitoring programs expensive to run in the region.

Estimated Economic Impact Of Gulf Oil Spill On Virginia’S Oyster Industry – July 2010, Thomas J. Murray, James E. Kirkley

Reports

No abstract provided.

Integrated Fisheries Management Report. West Coast Demersal Scalefish Resource., Department Of Fisheries Western Australia.

Fisheries management papers

This report on the West Coast Demersal Scalefish fishery is the third in a series of Integrated Fisheries Management (IFM) resource reports required under the Government policy on IFM. Under this policy, the Chief Executive Officer of the Department of Fisheries is required to approve a sustainability report for each fishery, which includes a clear statement on the recommended harvest level.

A Bycatch Action Plan For The Pilbara Fish Trawl Interim Managed Fishery., Department Of Fisheries Western Australia

Fisheries management papers

The effect of commercial fishing on bycatch species and the marine ecosystem generally, has emerged as a significant national and international issue. Environmental issues associated with bycatch – including impacts on the ecology of non-target species of fish and wildlife – are important issues to address in reducing the impacts, or potential impacts, of commercial fisheries.

In 1998, the National Standing Committee on Fisheries and Aquaculture developed a national policy on fisheries bycatch. In 1999, the (then) State Minister for Fisheries adopted the national policy as his position on bycatch for Western Australia. The main objective of the policy is …