Aquaculture and Fisheries Commons^™

Analyzing The Dynamics Of The Artisan Fishing Industry And Lapsset Port In Lamu, Kenya, Valerie Rodden

Independent Study Project (ISP) Collection

The LAPSSET project has the potential to severely impact the artisan fishing industry in Lamu. Through the provision of a perception focused survey and a few one on one interviews with artisan fishermen and key stakeholders in the industry, this study creates a more comprehensive understanding of the relationship between the fishing industry and the LAPSSET project. The fishermen of Lamu are most concerned about the lack of communication concerning the port’s activities and the blocking of fishing areas during port construction and operation. In general, there is a great sense of fear surrounding the port and the future of …

Tracking Movements Of Ambystoma Tigrinum Using Radio Telemetry, Heather L. Waye, Kirsten T. Sharpe

Undergraduate Research Symposium 2014

The eastern tiger salamander (Ambystoma tigrinum) is a widely distributed amphibian ranging from Northern Minnesota, down to Florida, and over to the east coast of the United States (Oldfield and Moriarty, 1994). As populations within the species are diverse and seldom studies have been done in the area of radio telemetry in tiger salamanders, there is a need for information in this field. This project was the first of its kind to be implemented in Minnesota.

In an effort to more fully understand the ecology of this species, this research attempts to provide vital information that will allow a better …

Examples Of Non-Noetherian Domains Inside Power Series Rings, William Heinzer, Christel Rotthaus, Sylvia Wiegand

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

Given a power series ring R∗ over a Noetherian integral domain R and an intermediate field L between R and the total quotient ring of R∗, the integral domain A = L ∩ R∗ often (but not always) inherits nice properties from R∗ such as the Noetherian property. For certain fields L it is possible to approximate A using a localization B of a particular nested union of polynomial rings over R associated to A; if B is Noetherian, then B = A. If B is not Noetherian, we can sometimes identify the prime ideals of B that are not …

Section Abstracts: Agriculture, Forestry, And Aquaculture

Virginia Journal of Science

Abstracts of the Agriculture, Forestry, and Aquaculture Section for the 92nd Annual Virginia Academy of Science Meeting, May 2014, at Virginia Commonwealth University in Richmond, Virginia

Microglia Respond To Both Permanent And Temporary Deaferentation In The Adult Zebrafish Olfactory Bulb, Amanda K. Mckenna

Masters Theses

The major goal of this study was to investigate a microglial response following deafferentation in the adult zebrafish, Danio rerio, olfactory bulb. Microglia were identified in the olfactory bulb using the 4c4 antibody and phagocytic-dependent labeling (DiA). Microglia responded to both methods of deafferentation namely, permanent (cautery) and temporary (Triton X- 100). On one and three days following both permanent and temporary deafferentation there was a significant increase in microglia in the treated olfactory bulb. At five and seven days after permanent and temporary deafferentation there was no longer a significant difference between the treated and untreated olfactory bulbs, …

Salmonid Habitat Restoration On The Chocolay River, Michigan, Ross J. Crawford

Masters Theses

This project seeks to improve salmonid habitat quality by improving riparian vegetation on the adjacent banks (from toe to terrace) on the Chocolay River in Michigan's Upper Peninsula. Quantities of large woody debris (LWD) were also analyzed to determine the heterogeneityof stream habitats, or channel roughness. Percentages of rock, gravel, sand, and silt were analyzed to determine spawning habitat quality. As the proportions of fines (

Effects Of Replacing Fishmeal With Squash Seed Meal (Cucurbita Maxima) On Performance Of Juvenile Nile Tilapia (Oreochromis Niloticus), Janice A. Ragaza, Jonni Fay C. Teves, Marie Noelle Fernandez

Biology Faculty Publications

The effects of replacing fishmeal with squash (Cucurbita maxima) seed meal (SSM) on Oreochromis niloticus juveniles were investigated on a 30-day feeding trial. Triplicate groups of ten (10) O. niloticus juveniles (2.54±0.949 g) stocked in polyethylene tanks received iso-nitrogenous diets with SSM inclusion levels of 0%, 5%, 10%, 15% and 20%. Fish fed 5% SSM inclusion level showed the highest average weight gain (202.25±36.26%) and specific growth rate (3.76±0.42%) among the fish fed SSM-containing diets. However, there were no significant differences between the average weight gain and specific growth rate of fish in all diets. Fish fed S5, S15 and …

Karenia Brevis Harmful Algal Blooms: Their Role In Structuring The Organismal Community On The West Florida Shelf, Alisha Marie Gray

USF Tampa Graduate Theses and Dissertations

Karenia brevis dinoflagellate blooms off the west coast of Florida can create devastating effects on marine communities when they release a neurotoxin known as a brevetoxin. These blooms, informally referred to as red tides, can cause massive fish kills, necessitate closures of shellfish fisheries, and can even leave lingering toxins that impact shelf communities long after the bloom has dissipated. As a result, much effort has been put into studying K. brevis bloom initiation and dynamics. However, how K. brevis blooms impact Florida's fisheries is not fully understood because the relationship between K. brevis cell counts and fish mortality is …

Identifying Factors Affecting The Low Western Rock Lobster Puerulus Settlement In Recent Years Final Frdc Report – Project 2009/18, Nick Caputi, Ming Feng, Simon De Lestang, Ainslie M. Denham, James D. Penn, Dirk Slawinski, Alan Pearce, Evan Weller, Jason R. How

Fisheries Research Reports

Objectives 1. To use a larval advection model and the rock lobster population dynamics model to assess the effect of the spatial distribution of the breeding stock on the puerulus settlement 2. To assess environmental factors (water temperature, current, wind, productivity, eddies) and breeding stock affecting puerulus settlement 3. To examine climate change trends of key environmental parameters and their effect on the western rock lobster fishery

Potential Eradication And Control Methods For The Management Of The Ascidian Didemnum Perlucidum In Western Australia, Julieta Muñoz, Justin I. Mcdonald

Fisheries Research Reports

In Western Australia, the invasive colonial ascidian Didemnum perlucidum was first detected in the Swan River Estuary in 2010 and subsequently recorded at multiple locations across the State. Ongoing research by the Department of Fisheries (the Department) indicates that this species exhibits strong seasonal changes in abundance. Although, D. perlucidum is able to reproduce sexually (larvae) and asexually (budding) year round, larvae density and settlement, and overall colony size significantly decreases during the colder months (winter). From a management point of view this period would present the best opportunity for an attempt at eradication or control of this species.

From The Inside Out, And Through., Dominique Ovalle

The Transdisciplinary STEAM+ Journal

These photographs describe “Science” born of consumerism, hijacked by me, economically disenfranchised, or rather—temporarily embarrassed, artist. I was putzing around Malibu—my old college stomping ground, looking for free food; maybe a sample of some gourmet $5 chocolate, and all I got were these photographs.

Study Of Dockage In Gloucester’S Designated Port Area: Summary, Urban Harbors Institute, University Of Massachusetts Boston

Urban Harbors Institute Publications

The Urban Harbors Institute (UHI), University of Massachusetts Boston assisted the Gloucester Fisheries Commission to conduct a study of commercial dockage in Gloucester Inner Harbor. The study presents a review of existing conditions and expected needs to serve as the basis for the Fisheries Commission to formulate recommendations for ensuring sufficient commercial dockage to support the future fishery. Strategies for the future Gloucester fisheries include measures to increase landings of groundfish, landings of alternative species, and value-added processing.

The Dockage Subcommittee of the Fisheries Commission was instrumental to the study, meeting periodically to guide the process, reviewing progress, and providing …

Archaeological Data Provide Alternative Hypotheses On Pacific Herring (Clupea Pallasii) Distribution, Abundance, And Variability, Iain Mckechnie, Dana Lepofsky, Madonna L. Moss, Virginia L. Butler, Trevor J. Orchard, Gary Coupland, Frederick Foster, Megan Caldwell, Ken Lertzman

Anthropology Faculty Publications and Presentations

Over the last century, Pacific herring, a forage fish of tremendous cultural, economic, and ecological importance, has declined in abundance over much of its range. We synthesize archaeological fisheries data spanning the past 10,000 y from Puget Sound in Washington to southeast Alaska to extend the ecological baseline for herring and contextualize the dynamics of modern industrial fisheries. While modern herring populations can be erratic and exhibit catastrophic declines, the archaeological record indicates a pattern of consistent abundance, providing an example of long-term sustainability and resilience in a fishery known for its modern variability. The most parsimonious explanation for the …

The Ipocamp Pressure Incubator For Deep-Sea Fauna, Bruce Shillito, Françoise Gaill, Juliette Ravaux

Journal of Marine Science and Technology–Taiwan

Animal Biology studies have always benefited from the achievement of experiments on live animals, which obviously provide data on dynamic aspects of physiology. When it comes to deep-sea fauna, in vivo experiments are impaired, and in some cases impossible, due to the severe and often lethal stress experienced by animals throughout the sampling process. However, freshly collected deep fauna may be maintained alive and in good condition, by using specific aquaria which restore environmental conditions prevailing at depth in situ. Here we describe the pressure device named “Incubateur Pressurisé pour l’Observation et la Culture d’Animaux Marins Profonds”, or IPOCAMP, and …

Marine Invertebrate Larval Distribution At The Hydrothermal Vent Site Of Gueishandao, Hans-Uwe Dahms, Li-Chun Tseng, Jiang-Shiou Hwang

Journal of Marine Science and Technology–Taiwan

Scientists remain uncertain about numerous aspects of hydrothermal vent (HV) ecology, including the reproductive biology of their biota, as well as their recruitment and dispersal during larval stages (meroplankton) in the plankton above the HV sites. We studied the meroplankton from a shallow HV site off the northeastern coast of Taiwan, in the northwest Pacific Ocean. Our findings potentially explain how fauna endemic to HVs persist at specific HV sites. With the exception of some damaged Cnidaria and Ctenophora, the plankton net catches were in good condition and sufficient for identification.

Sequence Diversity Of Ammonium Transporter Genes In Cultured And Natural Species Of Marine Phytoplankton, Lee-Kuo Kang, Jeng Chang

Journal of Marine Science and Technology–Taiwan

The sequence database of ammonium transporter (Amt1) genes in eukaryotic phytoplankton was expanded by obtaining new sequences from cultured strains and natural populations collected in the East China Sea (ECS). From unialgal cultures, 6 new Amt1 sequences belonging to the Bacillariophyceae, Dinophyceae, and Prasinophyceae were obtained. A phylogenetic analysis revealed that AMT1s of higher plants were most closely related to those in green algae. In addition, haptophyte and diatom AMT1s formed distinct monophyletic clades. Diatom AMT1s were further divided into 3 orthologous subclasses, and active gene duplications were observed in subclass III. As for mixed-species sequencing using ECS samples, 78 …

Shrimp Immune System -Special Focus On Penaeidin, Yen-Ling Song, Ching-Yu Li

Journal of Marine Science and Technology–Taiwan

In this review paper, we summarize the immune system of penaeid shrimp. This review includes the clotting system comprising clot protein and clotting enzyme (transglutaminase II), as well as the prophenoloxidase (proPO) activation system including proPO-activating enzyme (PPAE), proPO and clip domain serine protease homolog (c-SPH). In addition, several shrimp cytokines or cytokine-like molecules found in tiger shrimp Penaeus monodon participating in the defense responses are also discussed. C-SPH could enhance hemocyte adhesion. Shrimp astakine promoted hemocyte proliferation in the hematopoietic tissues and could be down-regulated at the post-transcriptional level by the binding of intracellular molecules such as transglutaminase I …

Evolution Of Vacuolar Pyrophosphatases And Vacuolar H+-Atpases In Diatoms, Adrien Bussard, Pascal Jean Lopez

Journal of Marine Science and Technology–Taiwan

To cope with changing environments and maintain optimal metabolic conditions, the control of the intracellular proton gradients has to be tightly regulated. Among the important proton pumps, vacuolar H+ -ATPases (V-ATPases) and H+ - translocating pyrophosphatases (H+ -PPases) were found to be involved in a number of physiological processes, and shown to be regulated at the expression level and to exhibit specific sub-cellular localizations. Studies of the role of these transporters are relatively scarce in algae and nearly absent in diatoms. Phylogenetic analyses disclose that diatoms, with both K+ -dependent and K+ -independent membrane integral pyrophosphatases, including proteins with high …

Polychaetes As Annelid Models To Study Ecoimmunology Of Marine Organisms, Virginie Cuvillier-Hot, Céline Boidin-Wichlacz, Aurélie Tasiemski

Journal of Marine Science and Technology–Taiwan

Annelids are among the first coelomates and are therefore of special phylogenetic interest. They constitute an important part of the biomass of the seashore, estuaries, fresh water and terrestrial soils. Moreover, they occupy a central position in the trophic networks, as a major food source for fishes, birds and terrestrial fauna. Among Annelids, the large majority of polychaetes is restricted to the marine domain. This report gives an overview of the immune strategies developed by polychaetes to fight pathogens. The potential and interest to use these worms as biomarkers to monitor the influence of environmental perturbation on the immunity of …

Neurogenesis In Cephalopods: "Eco-Evo-Devo" Approach In The Cuttlefish Sepia Officinalis (Mollusca-Cephalopoda), Sandra Navet, Sébastien Baratte, Yann Bassaglia, Aude Andouche, Auxane Buresi, Laure Bonnaud

Journal of Marine Science and Technology–Taiwan

Cephalopods are new evolutionary and ecological models. By their phylogenetic position (Lophotrochozoa, Mollusca), they provide a missing master piece in the whole puzzle of neurodevelopment studies. Their derived and specific nervous system but also their convergence with vertebrates offer abundant materials to question the evolution and development of the nervous system of Metazoa (evo-devo studies). In addition, their various adaptions to different modes of life open new fields of investigation of developmental plasticity according to ecological context (eco-evo-devo approach). In this paper, we review the recent works on cephalopod nervous developmental investigations. We show how cephalopods, and especially Sepia officinalis, …