Marine Biology Commons^™

Ecological Risk Assessment For The Temperate Demersal Elasmobranch Resource, Department Of Primary Industries And Regional Development, Western Australia

Fisheries research reports

No abstract provided.

Otoliths Of South-Western Australian Fish: A Photographic Catalogue, Chris Dowling, Kim Smith, Elain Lek, Joshua Brown

Fisheries research reports

No abstract provided.

Squid And Cuttlefish Resources Of Western Australia, Daniel Yeoh, Danielle J. Johnston Phd, David C. Harris

Fisheries research reports

No abstract provided.

Effects Of Salinity On Eastern Oysters: Locating Lower-Salinity Tolerant Populations And Defining Resource Zones Suitable To Restoration, Fisheries, And Aquaculture., Lauren Swam

LSU Master's Theses

Eastern oysters (Crassostrea virginica) provide valuable ecosystem services and support a productive commercial industry in the northern Gulf of Mexico. Declining abundance from water quality changes and other factors drives development of management and restoration strategies focused on a comprehensive, metapopulation approach. Identifying oyster resource zones based on water quality combined with selective breeding of oysters adapted to specific conditions provides strategies to support aquaculture development and ensure resilient oyster populations and high production. Using 2015-2019 satellite-derived continuous salinity and temperature data for coastal Louisiana, this work created maps defining oyster resource zones supportive of (1) broodstock sanctuary …

Sourcing And Evaluating The Use Of Detritus As A Supplementary Diet For Bivalve Aquaculture Using Stable Isotopes And Fatty Acid Biomarkers, Adrianus C. Both

Electronic Theses and Dissertations

Detritus is a ubiquitous component of ecosystems and an important fuel for secondary production. Due to the extractive nature of bivalve aquaculture, detritus is often incorporated into carrying capacity and growth models for cultured bivalves. However, despite the complexity and difficulty in obtaining direct measurements, detritus is often treated as a homogeneous food source in models. Further understanding the role detritus plays in the diet of cultured bivalves could lead to more comprehensive and accurate models as well as more informed site selection for growers. The purpose of this study was to assess the abundance, bioavailability, and contribution of detritus …

Quantifying Atlantic Sea Scallop (Placopecten Magellanicus) Larval Abundance Throughout Cape Elizabeth, Maine, Hannah Haskell, Britney Evangelista, Alex Loftis

Thinking Matters Symposium Archive

As markets for the Atlantic Sea scallop are growing, the need for sustainable and reliable harvesting methods such as aquaculture is more imperative than ever. Due to the difficulty of maintaining sea scallop hatcheries, scallop farmers typically collect larvae from the ocean and raise them until a marketable size on lease sites. In order to efficiently collect scallop larvae, being able to predict when the larvae are most abundant in the water column is crucial. The goal of our research was to learn when scallop larvae are most abundant in the water column and to determine if there is a …

Resource Assessment Report Temperate Demersal Elasmobranch Resource Of Western Australia, Matias Braccini, Nick Blay, S. A. Hesp, Brett Molony

Fisheries research reports

This document provides a cumulative description and assessment of the TDER and all of the fishing activities (i.e. fisheries / fishing sectors) affecting this resource in WA. Future Resource Assessment Reports will assess the Statewide Sharks and Rays Resource. The report is focused on the temperate indicator species (whiskery, gummy, dusky and sandbar sharks) used to assess the suites of demersal sharks and rays that comprise this resource. These species are primarily captured by demersal gillnets used in the TDGDLF that operate in the West Coast and South Coast Bioregions. For the North Coast bioregion, no commercial fishing for sharks …

Australian Herring And West Australian Salmon Scientific Workshop Report, October 2017, Department Of Primary Industries And Regional Development, Western Australia

Fisheries research reports

No abstract provided.

Detrital Protein Contributes To Oyster Nutrition And Growth In The Damariscotta Estuary, Maine, Usa, Cheyenne M. Adams

Electronic Theses and Dissertations

Oyster aquaculture is an expanding industry that relies on identifying and utilizing natural estuarine conditions for the economically viable production of a filter-feeding crop. The eastern oyster, Crassostrea virginica, is the principal species currently cultured in Maine. In addition to preferentially consumed phytoplankton, various detrital complexes (non-algal and/or non-living organic matter) may provide some nutrition to C. virginica between times of phytoplankton abundance. Here I investigated the importance of detrital proteins in supporting the growth of oysters cultured in the upper Damariscotta Estuary. Oyster aquaculture in this area is highly successful and previous reports indicate that labile detrital protein …

Changes In Hatchery Subsidies Of Chinook Salmon In The Salish Sea: Implications For Predators, Fisheries, And Conservation, Benjamin Nelson, Eric John Ward, Ole Shelton, Joseph H. Anderson

Salish Sea Ecosystem Conference

Historically, salmon hatcheries were designed to increase fishery production and to recover depleted native populations. As demands of human protein consumption increase and wild populations continue to decline due to anthropogenic impacts like climate change and habitat loss, hatcheries and stocking programs will be called on to provide food security and to supplement threatened populations. Since 1950 over 3.7 billion Chinook salmon have been released into the Salish Sea and its tributaries in Washington State and southern British Columbia. However, relatively little research has been conducted that considers the impact of hatchery subsidies on estuarine and nearshore marine ecosystems in …

The Jelly Team: Citizen Science At A Small Community Aquarium, Katy Kachmarik, Bri Gabel, Matt Wilson, Jessica Lotz, Elise Pletcher, Vanessa Hunt, Rus Higley

Salish Sea Ecosystem Conference

The efforts and successes of a community volunteer group, ‘The Jelly Team’, exemplify citizen science achievement at the Marine Science and Technology Center, the marine biology and aquarium facility of Highline College in Des Moines, Washington. With little professional direction or funding, these volunteers have succeeded in culturing Moon Jellies to provide an ongoing display in the public aquarium, and are now expanding their activities to culturing other species and looking to provide specimens to local schools. A popular display at the MaST public aquarium is a kreisel tank featuring Aurelia labiata, the Pacific coast species of the Moon Jelly. …

Coastal Ocean Dynamics And Primary Productivity Near Traditional Indigenous Clam Gardens In Fulford Harbour, Salt Spring Island, British Columbia, Fred Burgess

Salish Sea Ecosystem Conference

Along the Pacific coasts of British Columbia and Alaska, it has recently come back into knowledge that Indigenous communities traditionally built and maintained clam gardens in the intertidal zone by clearing rocks, aerating sediments, and/or building rock walls. Since 2014, Parks Canada has been working with First Nations advisors of the W̱SÁNEĆ and Hul'qumi'num Treaty Groups in the Gulf Islands National Parks Reserve on the restoration of two ancient clam gardens in the Fulford Harbour area, Salt Spring Island, British Columbia. Royal Roads University is a partner in this restoration project, and as part of the partnership this research involves …

Toxicity Testing Of Atlantic Salmon Aquaculture Chemotherapeutants On Spot Prawns And Benthic Invertebrates, Steven B. Barrett, Tooba Khan, Chris J. Kennedy

Salish Sea Ecosystem Conference

Demand for protein sources is high in North America and growing throughout the world. Global declines in fisheries has encouraged coastal regions to embrace aquaculture as a means of reconciling the growing pressures on wild fish stocks with this demand. Intensive salmon farming practices result in periodic infestations with naturally-occurring parasitic copepods referred to as “sea lice”. To prevent productivity losses, a variety of chemical and physical treatments have been implemented through regulatory systems or emergency applications. One objective of this study is to determine if these chemo-therapeutic treatments pose a risk to other non-target marine organisms including crustaceans such …

Population Genetics Of Native Shellfish Aquaculture Species And Potential Genetic Risks Of Cultivation, Natalie Lowell, Lorenz Hauser, Brent Vadopalas

Salish Sea Ecosystem Conference

Native shellfish aquaculture has many benefits, but interbreeding of hatchery and wild populations may pose genetic risks to wild populations. The type and magnitude of these risks depends in part on the genetic population structure of native shellfish species. Early genetic studies on marine shellfish provided little evidence for such structure. However, recent population genetic studies provide higher resolution, make use of both neutral and non-neutral molecular markers, and suggest some marine shellfish can exhibit population structure and even local adaptation. Here, we present preliminary results on genetic differentiation among populations of Crassadoma gigantea (the purple-hinged rock scallop) and Parastichopus …

Salmon Farms: Are We Making Progress, Alexandra Morton

Salish Sea Ecosystem Conference

Commercial finfish aquaculture has endured a turbulent thirty years since its arrival in British Columbia. The international record on the state of wild salmonid populations exposed to salmon farms is not encouraging as there is no region where salmon farming and stable wild salmonid populations coexist. The industry has made changes as it matures, reporting better siting, sea lice control and vaccines. However at the same time the number of fish per farm has risen to 1.7 million, adjacent commercial fisheries are largely closed, orca are increasing failing to carry offspring full term and First Nations are without food fish. …

Gascoyne Demersal Scalefish Managed Fishery, Department Of Fisheries

Fisheries occasional publications

An operators’ guide to the management arrangements 1 September 2015 – 31 August 2016.

Effects Of Pre-Release Physical Stressors On Post-Release Success Of Hatchery-Reared Spotted Seatrout, Taylor Westbrook Guest

Master's Theses

Alteration of habitat associated with coastal development and increased demand for food and recreation can result in the depletion of fisheries resources such as the Spotted Seatrout (Cynoscion nebulosus), the Gulf of Mexico’s most popular recreational fish. Stock enhancement, or the release of cultured fish to supplement wild populations, is one potential tool for managing important fisheries resources. Although much effort has gone into marine stock enhancement, the effectiveness of stocking is not well established, and techniques for ensuring success have not been developed. Although the basic biology of the Spotted Seatrout is well known, comparatively little is known about …

Review Of Report On The “Status Of Nearshore Finfish Stocks In South-Western Western Australia: Australian Herring And Tailor”, Department Of Fisheries

Fisheries occasional publications

No abstract provided.

A Sea Change For Aquatic Sustainability : Meeting The Challenge Of Fish Resources Management And Aquatic Sustainability In The 21st Century, Department Of Fisheries

Fisheries occasional publications

No abstract provided.

Fishing Industry Impact Study : James Price Point Proposed Liquefied Natural Gas Precinct, Department Of Fisheries

Fisheries occasional publications

No abstract provided.

Proceedings Of The Western Australian Dhufish Workshop 2004, Mark Pagano, Terry Fuller

Fisheries occasional publications

The Western Australian Dhufish Workshop 2004 was a joint project between Recfishwest and the Western Australian Department of Fisheries.

The workshop incorporated presentations from the Department of Fisheries, Recfishwest, the Western Australian Fishing Industry Council, Murdoch University and Challenger TAFE to showcase current knowledge relating to the iconic dhufish in Western Australia. The perspectives of a recreational fisher, a commercial wetline operator and a metropolitan charter boat operator were also presented.

Through information sharing and discussion the workshop provided a platform to better understand the fundamental issues that underpin current and future management arrangements for this valuable resource. Both commercial …

Workshop On Sustainable Development Of Marine Fish Farming In Wa, Peter Rogers, R Fletcher

Fisheries management papers

The purpose of this paper is twofold. First to provide an overview of the role of government and more particularly the Department of Fisheries and second to outline government expectations for aquaculture development agencies in the implementation of sustainable development initiatives and the effect this could have on the management of aquaculture within WA.

Processes For The Allocation, Reallocation And Governance Of Resource Access In Connection With A Framework For The Future Management Of Fisheries In Western Australia, Government Of Western Australia Department Of Fisheries

Fisheries management papers

This paper outlines the issues associated with developing a framework to deal explicitly with the allocation, reallocation and the governance of access to the fisheries resources of Western Australia.