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Full-Text Articles in Aquaculture and Fisheries

Variability In Growth And Age Structure Among Populations Of Ribbed Mussels, Geukensia Demissa (Dillwyn) (Bivalvia: Mytilidae), In Jamacia Bay, New York (Gateway Nra), John Tanacredi Ph.D., David R. Franz Feb 2018

Variability In Growth And Age Structure Among Populations Of Ribbed Mussels, Geukensia Demissa (Dillwyn) (Bivalvia: Mytilidae), In Jamacia Bay, New York (Gateway Nra), John Tanacredi Ph.D., David R. Franz

Dr. John T. Tanacredi

Growth rates, body weight, density and biomass of ribbed mussels, Geukensia demissa (Dillwyn), were determined at Spartina alterniflora marsh-flat sites in Jamaica Bay, New York (Lower Hudson Estuary). Cumulative growth and annual growth increments varied but rates were lower at sites within the central bay relative to peripheral sites. Local variability both in size at Ring-1 and size-specific annual growth rates probably account for the variability in cumulative length. No pattersn were noted in frequency distributions of shell size but congruence in age structure was observed among neighboring sites in some areas of the bay. Mussel densities were greater within ...


Water Quality Characterization And Mathematical Modeling Of Dissolved Oxygen In The East And West Ponds, Jamaica Bay Wildlife Refuge, John Tanacredi Ph.D., D Roy, Krishnanand Maillacheruvu Feb 2018

Water Quality Characterization And Mathematical Modeling Of Dissolved Oxygen In The East And West Ponds, Jamaica Bay Wildlife Refuge, John Tanacredi Ph.D., D Roy, Krishnanand Maillacheruvu

Dr. John T. Tanacredi

The current study was undertaken to characterize the East and West Ponds and develop a mathematical model of the effects of nutrient and BOD loading on dissolved oxygen (DO) concentrations in these ponds. The model predicted that both ponds will recover adequately given the average expected range of nutrient and BOD loading due to waste from surface runoff and migratory birds. The predicted dissolved oxygen levels in both ponds were greater than 5.0 mg/L, and were supported by DO levels in the field which were typically above 5.0 mg/L during the period of this study. The ...


Limulus In The Limelight: Exploring An Ancient Species, John Tanacredi Ph.D. Feb 2018

Limulus In The Limelight: Exploring An Ancient Species, John Tanacredi Ph.D.

Dr. John T. Tanacredi

In an era when sports numbers shatter historical ceilings (especially in baseball) and fall by the wayside like fall leaves, a most enduring record of life continues to crawl along emerging from the sea early each spring pronouncing their incredible "record" of existences... over 350 million years. Now there is a number that even the rarified air of baseball salaries can admire. Yet, today the remarkable sea creature which endured over 100 million years of dramatically changing earth history prior to the existence of the dinosaurs, and which is comprised of only four species globally, is being tested for its ...


Phytosociological Analysis Of Restored And Managed Grassland Habitat Within An Urban National Park, John T. Tanacredi Ph.D., Andrew M. Greller, Celestine Durando, Leslie F. Marcus, D. Siril A. Wijesundara, Michael D. Byer, Robert Cook Feb 2018

Phytosociological Analysis Of Restored And Managed Grassland Habitat Within An Urban National Park, John T. Tanacredi Ph.D., Andrew M. Greller, Celestine Durando, Leslie F. Marcus, D. Siril A. Wijesundara, Michael D. Byer, Robert Cook

Dr. John T. Tanacredi

Floyd Bennett Field (FBF), 579 ha in extent, is a division of Gateway National Recreation Area. It is the site of a former airfield, constructed by filling salt marshes with dredged materials. Except for the portion known locally as the “North Forty,” all sections of FBF have been cut over to maintain low vegetation. A grassland management plan (GRAMP) for 165 ha was initiated in 1986, to maintain habitats for open-country birds. Over the next few years, encroaching woody vegetation was removed manually and mechanically from the management area. Since then, it has been maintained as a grassland and receives ...


Managing Birds And Controlling Aircraft In The Kennedy Airport–Jamaica Bay Wildlife Refuge Complex: The Need For Hard Data And Soft Opinions, John Tanacredi Ph.D., Kevin Brown, R. Michael Erwin, Milo E. Richmond, P A. Buckley, Dave Avrin Feb 2018

Managing Birds And Controlling Aircraft In The Kennedy Airport–Jamaica Bay Wildlife Refuge Complex: The Need For Hard Data And Soft Opinions, John Tanacredi Ph.D., Kevin Brown, R. Michael Erwin, Milo E. Richmond, P A. Buckley, Dave Avrin

Dr. John T. Tanacredi

During the 1980s, the exponential growth of laughing gull (Larus atricilla) colonies, from 15 to about 7600 nests in 1990, in the Jamaica Bay Wildlife Refuge and a correlated increase in the bird-strike rate at nearby John F. Kennedy International Airport (New York City) led to a controversy between wildlife and airport managers over the elimination of the colonies. In this paper, we review data to evaluate if: (1) the colonies have increased the level of risk to the flying public; (2) on-colony population control would reduce the presence of gulls, and subsequently bird strikes, at the airport; and (3 ...


Long-Term Sediment Bioassay Of Lead Toxicity In Two Generations Of The Marine Amphipod Elasmopus Laevis, S.I. Smith, 1873, John T. Tanacredi Ph.D., Martin P. Schriebmann, Mark J. Ringenary, Alan H. Molof, Konstantinos Kostarelos Feb 2018

Long-Term Sediment Bioassay Of Lead Toxicity In Two Generations Of The Marine Amphipod Elasmopus Laevis, S.I. Smith, 1873, John T. Tanacredi Ph.D., Martin P. Schriebmann, Mark J. Ringenary, Alan H. Molof, Konstantinos Kostarelos

Dr. John T. Tanacredi

Sediments are evaluated for toxicity by measuring mortality in a single cohort of amphipods in either acute (10-d) or chronic (28-d) bioassays. This investigation differed from conventional bioassays in four ways: Sublethal effects (fecundity) were estimated; the testing period was 60+ d; two successive generations were examined; and Elasmopus laevis Smith, 1873, amphipods were employed. Four test sediments were created between 58 and 424 µg/g of lead using the 30-µg/g whole-sediment as the control. Bioaccumulated lead at 60 d varied as a linear function of lead concentration in the sediments. Fecundity, as estimated by offspring-per-chamber and/or percent ...


Questioning Ecosystem Assessment And Restoration Practices In A Major Urban Estuary: Perpetuating Myths Of Degradation In Spite Of Facts, John T. Tanacredi Ph.D., Martin P. Schreibman, Kevin Mcdonnell Feb 2018

Questioning Ecosystem Assessment And Restoration Practices In A Major Urban Estuary: Perpetuating Myths Of Degradation In Spite Of Facts, John T. Tanacredi Ph.D., Martin P. Schreibman, Kevin Mcdonnell

Dr. John T. Tanacredi

The Jamaica Bay ecosystem is a dichotomy. It encompasses more than 12,000 acres of coastal estuarine marshes and an ecological diversity rivaling any coastal environment in the world. It is considerably altered, and is affected by a variety of ecological insults directly related to the fact that more than 14 million people live in its vicinity. Environmental protection institutions responded to the challenge of protecting the bay, surrounding wetlands and recreational benefits by addressing the increasing load of contaminants into the ecosystem. Billions of dollars have been spent during the past five decades on restoration attempts, including upgrading wastewater ...


Rare And Endangered Plants At Gateway National Recreation Area: A Case For Protection Of Urban Natural Areas, John T. Tanacredi Ph.D., Richard Stalter, Michael D. Byer Feb 2018

Rare And Endangered Plants At Gateway National Recreation Area: A Case For Protection Of Urban Natural Areas, John T. Tanacredi Ph.D., Richard Stalter, Michael D. Byer

Dr. John T. Tanacredi

The diversity of native plant species in urban environments is usually overlooked when biodiversity levels are considered. Inventories of native plants reveal many to be rare species surviving the harsh conditions encountered in urban ecosystems. Knowledge of their existence and an inventory of their distribution will assist in maintaining these populations. Protection strategies for rare plant species are outlined for urban National Parks.


Liver Lesions In Winter Flounder (Pseudopleuronectes Americanus) From Jamaica Bay, New York: Indications Of Environmental Degradation, John T. Tanacredi Ph.D., Thomas P. Augspurger, Roger L. Herman, Jeff S. Hatfield Feb 2018

Liver Lesions In Winter Flounder (Pseudopleuronectes Americanus) From Jamaica Bay, New York: Indications Of Environmental Degradation, John T. Tanacredi Ph.D., Thomas P. Augspurger, Roger L. Herman, Jeff S. Hatfield

Dr. John T. Tanacredi

Liver sections of winter flounder (Pseudopleuronectes americanus) collected from Jamaica Bay and Shinnecock Bay, New York, in 1989, were examined microscopically to determine the pervasiveness of liver lesions observed previously in Jamaica Bay winter flounder. Neoplastic lesions were not detected in fish from Jamaica Bay or the Shinnecock Bay reference site. Twenty-two percent of Jamaica Bay winter flounder examined (n=103) had unusual vacuolization of hepatocytes and biliary pre-ductal and ductal cells (referred to hereafter as the vacuolated cell lesion). The lesion, identical to that found in 25% of Jamaica Bay winter flounder examined in 1988, has previously been identified ...


Petroleum Hydrocarbons From Effluents: Detection In Marine Environment, John T. Tanacredi Ph.D. Feb 2018

Petroleum Hydrocarbons From Effluents: Detection In Marine Environment, John T. Tanacredi Ph.D.

Dr. John T. Tanacredi

The marine environment has become the primary disposa ground for an increasing quantity of petroleum wastes. Mushrooming demands for petroleum products and the lack of economic incentive to recycle waste oil will increase the concentrations of detrimental petroleum hydrocarbons in the marine environment

Although a continuous, low-level discharge of waste petroleum hydrocarbons into the marine environment may not be as dramatic as a major oil spill, the consequences could be more devastating over an extended period. As noted by Blumer, earlier interpretations of the environmental effects of oil must not be reevaluated in the light of recent evidence of its ...


Rotating Biological Contractors As An Effective Removal System Of Waste Petroleum Hydrocarbons From Untreated Wastewaters, John Tanacredi Ph.D., R. C. Cardenas Feb 2018

Rotating Biological Contractors As An Effective Removal System Of Waste Petroleum Hydrocarbons From Untreated Wastewaters, John Tanacredi Ph.D., R. C. Cardenas

Dr. John T. Tanacredi

A staged, partially submerged rotating biological disk system was assessed to determine its performance in the reduction of detectable concentrations of polynuclear aromatic hydrocarbons (PAH0 attributable to waste crankcase oils (WCCO) in wastewater effluent. Results indicate that such biological systems for the removal of WCCO aromatic hydrocarbons may be a viable alternative to secondary treatment systems commonly being employed.


Naphthalenes Associated With Treated Wastewater Effluents In An Urban National Wildlife Refuge, John T. Tanacredi Ph.D. Feb 2018

Naphthalenes Associated With Treated Wastewater Effluents In An Urban National Wildlife Refuge, John T. Tanacredi Ph.D.

Dr. John T. Tanacredi

Our coastal enviornments have become the invariable recipient of petroleum and petroleum wastes. Demands for petroleum products coupled with a lack of economic incentive to recycle waste oil, will increase the probability of greater concentrations of petroleum derived hyrdrocarbons entering our estuaries (CEQ Report, 1983).


Biodepuration Of Polynuclear Aromatic Hydrocarbons From A Bivalve Mollusk, Mercenaria Mercenaria L, John T. Tanacredi Ph.D., Raul R. Cardenas Feb 2018

Biodepuration Of Polynuclear Aromatic Hydrocarbons From A Bivalve Mollusk, Mercenaria Mercenaria L, John T. Tanacredi Ph.D., Raul R. Cardenas

Dr. John T. Tanacredi

Mercenaria mercenaria, exposed in vitro for 48 h to nine parent polynuclear aromatic hydrocarbons (PAHs) found in waste crankcase oil (WCCO) and analysed by multiparametric analysis over a 45- day depuration period in an activated carbon filtration aquaria system, did not depurate PAHs, but rather maintained them at detectable levels. Uptake of PAHs was shown to be directly related to clam weight. A cluster analysis of empirical results reaffirmed a biostabilization in PAH groupings in clam tissue over a 45-day depuration period and exhibited no evidence of a decreasing trend in total PAHs when subjected to ANOVA. Due to the ...


Characterization Of Polycyclic Aromatic Hydrocarbons (Pahs) By The Kinetics Of Depuration In Bivalve Molluscs, Mercenaria Mercenaria, John T. Tanacredi Ph.D., C Sato, H Kim Feb 2018

Characterization Of Polycyclic Aromatic Hydrocarbons (Pahs) By The Kinetics Of Depuration In Bivalve Molluscs, Mercenaria Mercenaria, John T. Tanacredi Ph.D., C Sato, H Kim

Dr. John T. Tanacredi

The objectives of this study were to examine depuration aspects of polycyclic aromatic hydrocarbons (PAHs) in a hard-shell clam Mercenaria mercenaria, and to characterize PAHs by the depuration kinetics. In this investigation, clams were exposed to artificial sea water containing a mixture of eight PAHs (i.e., naphthalene, fluorene, phenanthrene, flouranthene, pyrene, benz[a]anthracene, chrysene, benzo[a]pyrene) for 48 hours. The clams were then transferred into clean (PAH-free) artificial seawater for release, and sampled at predetermined intervals. The target PAHs were extracted from the clam tissue and quantified by a gas chromatograph equipped with a capillary glass column ...


Habitat Use Of Sympatrically Nesting Fish Crows And American Crows, John Tanacredi Ph.D., Brook Lauro Feb 2018

Habitat Use Of Sympatrically Nesting Fish Crows And American Crows, John Tanacredi Ph.D., Brook Lauro

Dr. John T. Tanacredi

We examined habitat use of sympatric Fish Crows (Corvus ossifragus) and American Crows (C. brachyrhynchos) nesting in the vicinity of waterbird breeding locations at the Rockaway Peninsula, New York City. Fish Crows nested significantly more often at natural habitats, including coastal dunes and salt marsh islands; American Crows nested significantly more often at residential and recreational areas. In regard to potential foraging areas, Fish Crows nested closer to waterbird colonies and to the water's edge while American Crows nested closer to a garbage source and to lawns. Fish Crows nested significantly more often in deciduous trees that were native ...


An Examination Of Predatory Pressures On Piping Plovers Nesting At Breezy Point, New York, John Tanacredi Ph.D., Brook Lauro Feb 2018

An Examination Of Predatory Pressures On Piping Plovers Nesting At Breezy Point, New York, John Tanacredi Ph.D., Brook Lauro

Dr. John T. Tanacredi

This study examines predatory threats to Piping Plovers (Charadrius melodus) nesting at Breezy Point, Gateway National Recreation Area, New York. Several methods used include: 1) an evaluation of reproductive success data with documentation of predation to eggs and chicks, 2) predator surveys, and 3) an artificial nest study. The range of breeding pairs nesting from 1988-1996 was 11-19, with an average of 15.8 (SE ± 0.79) pairs/season. The average number of eggs hatched and chicks fledged per year for pairs was 2.2 ± 0.23 and 0.8 ± 0.16 respectively. Reasons for egg losses often went undetected ...


Changes In Reproductive Morphology And Physiology Observed In The Amphipod Crustacean, Melita Nitida Smith, Maintained In The Laboratory On Polluted Estuarine Sediments, John T. Tanacredi Ph.D., B. Borowsky, P. Aitken-Ander Feb 2018

Changes In Reproductive Morphology And Physiology Observed In The Amphipod Crustacean, Melita Nitida Smith, Maintained In The Laboratory On Polluted Estuarine Sediments, John T. Tanacredi Ph.D., B. Borowsky, P. Aitken-Ander

Dr. John T. Tanacredi

An earlier study showed that the amphipod crustacean Melita nitida Smith maintained on sediments dosed with waste crankcase oil developed physiological and morphological abnormalities. Most notably, mature females developed abnormal setae along the edges of their brood plates. The present study was conducted to determine whether similar abnormalities might be induced in animals maintained on polluted field sediments containing petroleum by-products among other toxic substances. In the laboratory, heterosexual pairs were maintained on three sediments taken from Jamaica Bay (New York) plus one control sediment and one toxic substratum (Ulva lactuca (L.) thalli). The results mirrored the results of the ...


The Shellfish Corner: Filter Feeding Bivalves As Processors Of Coastal Waters, Michael Rice Aug 2015

The Shellfish Corner: Filter Feeding Bivalves As Processors Of Coastal Waters, Michael Rice

Michael A Rice

Bivalves have a profound role in controlling the boom and bust cycles of seasonal phytoplankton blooms, and the increased rates of sediment deposition to the bottom by bivalves are an important "coupler" between the water column and the bottom that stimulates the rate of decomposition and other processes in the sediments.


Wildlife Of The Gold Coast Wetlands, Shelley Burgin, Daryl Mcphee Aug 2015

Wildlife Of The Gold Coast Wetlands, Shelley Burgin, Daryl Mcphee

Daryl McPhee

Extract: Water in the landscape of the Gold Coast is dominated by marine and marine-influenced systems. The most obvious are the in-shore waters abutting the Gold Coast's world-famous beaches and estuaries. Little more than a glance at a map of the city also reveals the extensive canal estates built to take advantage of the marine waters, and indeed expand them. The waters of the rivers mix with the ocean's waters in the estuaries. These ecosystems are valuable nursery areas for marine wildlife, particularly, but not restricted to, fishes of commercial and recreational value.


Marine Environments Of The Gold Coast: Out With The Old, In With The New, Daryl Mcphee Aug 2015

Marine Environments Of The Gold Coast: Out With The Old, In With The New, Daryl Mcphee

Daryl McPhee

Extract: The marine environments of the Gold Coast comprise one of the most highly modified and heavily utilised waterways in Australia. Chapters 2 and 3 discussed changes in the historic land use patterns. Just what has this meant to the marine environments of the Gold Coast? In this chapter the contemporary marine h abitats of the Gold Coast are described, along with the fauna that those habitats support. We talk about how the current status of the habitats compares with various historical points in time, and the role of novel habitats. Given the impor tance of recreational fishing to both ...


Interactions Between Short-Beaked Common Dolphin (Delphinus Delphis) And The Winter Pelagic Pair-Trawl Fishery Ff Southwest England (Uk), Marijke N. De Boer, James T. Saulino, Mardik F. Leopold, Peter J.H. Reijnders, Mark P. Simmonds Dec 2014

Interactions Between Short-Beaked Common Dolphin (Delphinus Delphis) And The Winter Pelagic Pair-Trawl Fishery Ff Southwest England (Uk), Marijke N. De Boer, James T. Saulino, Mardik F. Leopold, Peter J.H. Reijnders, Mark P. Simmonds

Mark P. Simmonds, OBE

During offshore and onshore studies (2004 to 2009), the interactions between pair-trawls and short-beaked common dolphins (Delphinus delphis) were studied to better understand the impact of bycatch. A ‘hotspot’ area where pair-trawls overlapped with high dolphin abundance was identified. We made comparisons between boat-based data collected in absence and presence of pair-trawlers. The relative abundance and group-size of dolphins was significantly higher in the presence of pair-trawlers. Dolphins were observed associating with towing and hauling procedures. Significantly, more carcasses occurred in areas with hauling-activity than those without. Body-temperatures obtained from carcasses found near operating pair-trawlers indicated that bycatch mostly occurred ...


The Salters Of Stanley Brook, Catherine V. Schmitt Mar 2014

The Salters Of Stanley Brook, Catherine V. Schmitt

Catherine Schmitt

No abstract provided.


Determining Winter Flounder Spawning Sites In Two Connecticut Estuaries, Eric Schultz, Jose Pereira, Peter Auster Jan 2014

Determining Winter Flounder Spawning Sites In Two Connecticut Estuaries, Eric Schultz, Jose Pereira, Peter Auster

Jose J Pereira

Winter flounder (Pseudopleuronectes americanus) come inshore during the late winter and early spring to lay their eggs in shallow bays and estuaries along the coast. Unlike most fish eggs, which are buoyant, these eggs are demersal and sink to the seafloor. This makes them vulnerable to burial from various types of natural and human caused disturbances (e.g., storms, mobile fishing gear, maintenance dredging). Our objective was to map spawning areas in two harbors and search for generalities among these sites that would allow us to predict where winter flounder might spawn in other areas. This would allow managers to ...


Economic Impact Of Double-Crested Cormorant, Phalacrocorax Auritus, Depredation On Channel Catfish, Ictalurus Punctatus,Aquaculture In Mississippi, Usa, Brian S. Dorr, Loren W. Burger, Scott C. Barras, Kristina Casscles Godwin Jul 2012

Economic Impact Of Double-Crested Cormorant, Phalacrocorax Auritus, Depredation On Channel Catfish, Ictalurus Punctatus,Aquaculture In Mississippi, Usa, Brian S. Dorr, Loren W. Burger, Scott C. Barras, Kristina Casscles Godwin

Brian S Dorr

The Yazoo River Basin of Mississippi, USA, supports the largest concentration of hectares devoted to channel catfish, Ictalurus punctatus, aquaculture production in North America. The Yazoo Basin also supports large numbers of resident, wintering and migrating fish-eating birds, with the Double-crested Cormorant, Phalacrocorax auritus, implicated as the most serious depredating species. We used data from aerial surveys of numbers and distribution of cormorants in the Yazoo Basin and on commercial catfish ponds during winters (November–April) 2000–2001 and 2003–2004 to refine estimates of regional economic losses due to cormorant depredation. In both periods, the greatest monthly estimates of ...


Project Limulus: Understanding And Conserving A Critical Natural Resource, Jennifer H. Mattei Jun 2012

Project Limulus: Understanding And Conserving A Critical Natural Resource, Jennifer H. Mattei

Jennifer Mattei

Mattei, fellow SHU associate professor of Biology, Dr. Mark Beekey, and many other devoted biologists and conservationists are deeply committed to studying and preserving Limulus polyphemus – the American horseshoe crab. A concerted effort is now under way to locate, count and tag horseshoe crabs – whose numbers have declined since the early 1990s. The crabs are considered to be both a dominant and a “keystone” species of the intertidal zone. Their greatest value to humankind is that the blood of Limulus has an amazing property: It contains unique blood cells (amebocytes) that are used to test human vaccines for bacterial contamination.


Double-Crested Cormorant Distribution On Catfish Aquaculture In The Yazoo River Basin Of Mississippi, Brian S. Dorr, Loren W. Burger, Scott C. Barras, Kristina Casscles Godwin Mar 2012

Double-Crested Cormorant Distribution On Catfish Aquaculture In The Yazoo River Basin Of Mississippi, Brian S. Dorr, Loren W. Burger, Scott C. Barras, Kristina Casscles Godwin

Brian S Dorr

No abstract provided.


Efficacy, Effort, And Cost Comparisons Of Trapping And Acetaminophen-Baiting For Control Of Brown Treesnakes On Guam, Larry Clark, Peter J. Savarie, John A. Shivik, Stewart W. Breck, Brian S. Dorr Jan 2012

Efficacy, Effort, And Cost Comparisons Of Trapping And Acetaminophen-Baiting For Control Of Brown Treesnakes On Guam, Larry Clark, Peter J. Savarie, John A. Shivik, Stewart W. Breck, Brian S. Dorr

Brian S Dorr

Abstract: Brown treesnakes (Boiga irregularis) are an invasive species to the island of Guam. Because they have extirpated the native forest avifauna on Guam and are a threat to other Pacific islands, the development of efficient and cost-effective methods to control them is desired. We compared the efficacy, cost, and effort required to remove brown treesnakes on 6-ha plots in forest scrub on Guam, using 2 methods: trapping and poison baiting. Toxic baits consisted of dead neonatal mice adulterated with 80-mg acetaminophen. To assess efficacy, we used mark-recapture methods to estimate snake abundance on plots 12 days before and 12 ...


The Direction Of Research And Management Of Double-Crested Cormorants Heading Into The 2000s: Symposium Overview And Future Information Needs, Brian S. Dorr, Christopher Somers Jan 2012

The Direction Of Research And Management Of Double-Crested Cormorants Heading Into The 2000s: Symposium Overview And Future Information Needs, Brian S. Dorr, Christopher Somers

Brian S Dorr

Abstract.—An overview is provided of a symposium on the direction of research and management of Double-crested Cormorants (Phalacrocorax auritus) heading into the 2000s. The current symposium built on previous efforts and described a number of focus areas of informational need, including cormorant impacts on natural resources, demographics of cormorants, assessment of control efforts, assessment of fish consumption and bioenergetics, and cormorant spatial ecology and influences on movements. The cormorant symposium highlighted a shift in research focus relative to earlier symposia, from evaluating potential impacts on commercial and natural resources to evaluating management actions in attaining desired goals. In addition ...


Modification Of Net Configurations Of The Coda Netlauncher© To Enhance Bird Capture, Amanda M. Prisock, Brian S. Dorr, James C. Cumbee Jan 2012

Modification Of Net Configurations Of The Coda Netlauncher© To Enhance Bird Capture, Amanda M. Prisock, Brian S. Dorr, James C. Cumbee

Brian S Dorr

Abstract: We modified and evaluated capture nets fi red from the Coda Netlauncher® as a tool for capturing various avian species. We modified the netlauncher by using customized nets to maximize the area of the capture zone. We captured 137 birds, comprising 12 species, in 23 attempts between July 2008 and October 2009 using this method. Capture success rates varied from 25 to 69% were comparable to success rates reported for other capture methods for these species. However, individual capture success for different net configurations varied greatly from 3 to 65%. Minimal injuries and 2 bird fatalities were reported. The ...


Management Of Double-Crested Cormorants To Improve Sport Fisheries In Michigan: Three Case Studies, Brian S. Dorr, Shauna L. Hanisch, Peter H. Butchko, David G. Fielder Jan 2012

Management Of Double-Crested Cormorants To Improve Sport Fisheries In Michigan: Three Case Studies, Brian S. Dorr, Shauna L. Hanisch, Peter H. Butchko, David G. Fielder

Brian S Dorr

No abstract provided.