Examining the effect of geomorphic characteristics on pool temperatures for native fish habitat management in mountainous stream networks

2017 ◽  
Vol 42 (9) ◽  
pp. 1299-1307 ◽  
Author(s):  
DeAnna Laurel ◽  
Ellen Wohl
Keyword(s):  
Habitat Management ◽  
Fish Habitat ◽  
Native Fish ◽  
Stream Networks

Fish Habitat: Essential Fish Habitat and Rehabilitation

1999 ◽  
Keyword(s):  
Lake Erie ◽  
Habitat Management ◽  
Fish Habitat ◽  
Learning By Doing ◽  
Suitable Habitat ◽  
Physical Habitat ◽  
Fish Stocks ◽  
Habitat Features ◽  
Fish Habitats

<em>Abstract.—</em> The quality and quantity of habitats determine ecosystem productivity. Hence, they determine the potential fish productivity that sustains the fish harvests extractable from freshwaters and seas. Efforts to conserve and protect fish habitats are frustrated by key unanswered questions: which habitat types and how much must be protected to ensure natural self-sustaining fish stocks? Minns and Bakelaar presented a prototype method for assessing suitable habitat supply for fish stocks in Lake Erie, an analysis that can be used to address conservation issues. Here, the method is refined and extended, taking the assessment of habitat supply for pike <em>Esox lucius </em> in the Long Point region of Lake Erie as a case study. As with the previous study, much emphasis is placed on “learning by doing.” Because available inventories of habitat features are coarse and incomplete, improved guidelines for estimating habitat supply are expected from these prototype studies. The habitat supply method previously presented by Minns and Bakelaar is elaborated in three ways here: (1) the basic physical habitat assessment is derived from a remote-sensing inventory database; (2) methods of quantifying the thermal regime and integrating it with other habitat elements are examined; (3) habitat supply estimates are used in a pike population model, and pike biomass and production are simulated for the Long Point region of Lake Erie and then compared with available records. The roles of error and uncertainty are examined for all elements in the estimation and application of suitable habitat supply values. There is potential for supply measurement and analysis to guide fish habitat management.

Benthic Habitats and the Effects of Fishing

2005 ◽  
Keyword(s):  
Habitat Management ◽  
Research Council ◽  
Fish Habitat ◽  
Effective Interaction ◽  
National Research Council ◽  
Fishing Effort ◽  
Socioeconomic Impacts ◽  
Management Measures ◽  
Management Plans ◽  
Existing Data

<strong><em>Abstract. </em></strong>This paper summarizes the results of the National Research Council Study on the Effects of Bottom Trawling and Dredging on Seafloor Habitat (National Research Council 2002). The report concludes that integration of existing data on the effects of trawls and dredges, level of fishing effort, and distribution of seafloor habitats would facilitate development of habitat management plans. Current and new management measures should be assessed regularly to provide a better understanding of how various restrictions affect fish habitat and to determine the socioeconomic impacts on the fishing industry and local communities. Resolution of the different, and at times conflicting, ecological and socioeconomic goals will require not only a better understanding of the relevant ecosystems and fisheries but also more effective interaction among stakeholders.

Managing the Impacts of Human Activities on Fish Habitat: The Governance, Practices, and Science

2015 ◽  
Keyword(s):  
Human Activities ◽  
Habitat Management ◽  
Fish Habitat ◽  
Risk Assessments ◽  
Mitigation Measures ◽  
Policy Makers ◽  
Habitat Features ◽  
Science Advice ◽  
Governance Practices ◽  
Management Approaches

<em>Abstract.</em>—The landscape for policy and management of fish habitat is changing. The historic focus on evaluating environmental impact assessments for large projects, and issuing (or not) permits for small projects is being supplanted by new expectations for habitat managers and policy makers. Many of these new expectations are rooted in the adoption of an ecosystem approach to management of diverse human activities, including fisheries, in aquatic ecosystems, combined with a growing emphasis on integrated management of those human activities, in turn aided by spatial planning and spatial management approaches in many fields. These new expectations placed on habitat managers and policy makers create the need for expanded support from a new blending of habitat and population sciences. Historically, it may have been sufficient to use science advice based on relative indices of habitat quality and carefully assembled expert opinion as the basis for many tasks in habitat policy and management. Such tools now must be augmented by much more quantitative science advice, to allow for setting operational objectives for managing habitats, assessing the quality and quantity of critical or essential habitat for protected or exploited fish populations, conducting risk assessments of projects and mitigation measures, making siting decisions about marine protected areas and other spatial zoning measures, and many other tasks in which habitat managers and policy makers must participate. Science advice now must be able to quantify the relationships between habitat features and population status and productivity, as well with community properties such as resilience and vulnerability. This advice has to capture the uncertainty in the relationships and data sources, in forms that fit comfortably into risk assessments. Tools for forward projection of the habitat consequences of management options are needed, as are tools for cost-benefit analyses of tradeoffs among different types of habitats for different groups of aquatic species. None of these analytical challenges is beyond the scope of modern statistical and modelling capabilities, and current ecological concepts. Few of them can be met by existing tools and data-bases however. Moreover, many of the conceptual approaches to aquatic habitat management have been imported from terrestrial habitat management. They may have served adequately for management of riverine and marine benthic habitats, but some of the fundamental conceptual starting points are being questioned for marine and lacustrine habitats more generally. The paper brings out both some promising opportunities and some difficult challenges for the science needed to support contemporary habitat management and policy.

Historical abundance of juvenile commercial fish in coastal habitats: Implications for fish habitat management in Canada

Marine Policy ◽  
2016 ◽  
Vol 73 ◽  
pp. 235-243 ◽  
Author(s):  
J. Scott P. McCain ◽  
Robert W. Rangeley ◽  
David C. Schneider ◽  
Heike K. Lotze
Keyword(s):  
Habitat Management ◽  
Fish Habitat ◽  
Coastal Habitats ◽  
Commercial Fish

Direct and indirect estimates of the productive capacity of fish habitat under Canada’s Policy for the Management of Fish Habitat: where have we been, where are we now, and where are we going?

2011 ◽  
Vol 68 (12) ◽  
pp. 2204-2227 ◽  
Author(s):  
Charles K. Minns ◽  
Robert G. Randall ◽  
Karen E. Smokorowski ◽  
Keith D. Clarke ◽  
Antonio Vélez-Espino ◽  
...  
Keyword(s):  
Habitat Management ◽  
Method Development ◽  
Dynamic Models ◽  
Fish Habitat ◽  
Assessment Tools ◽  
Management Policy ◽  
Productive Capacity ◽  
No Net Loss ◽  
Future Direction ◽  
And Function

No net loss of productive capacity (PC) of fish habitat has been the central concept guiding Canadian fish habitat management policy since 1986. The purpose of this paper is to describe the concept of PC, to review the history and application of the fish habitat management policy in Canada, and to provide a critical review of the range of potential approaches to estimating PC. The approaches were grouped by their central focus: habitat, individual, population, and community–ecosystem. A set of case studies is used to illustrate the use of some approaches drawn from freshwater and marine contexts. Ten components to assessing no net loss of PC were developed and used in the review of approaches for evaluating potential limitations. The review also highlighted the likely future direction of method development, with increasing emphasis on dynamic models integrating population responses to habitat supply characteristics. More work needs to be done to turn research-based metrics of PC into practical operational management assessment tools and to better quantify the link between habitat structure and function and fisheries productivity. The evolving approaches to measure PC reinforce the ties that fish habitat management has to the emerging practices in ecosystem-based management.

scholarly journals The importance of a constructed near-nature-like Danube fish by-pass as a lifecycle fish habitat for spawning, nurseries, growing and feeding: a long-term view with remarks on management

2018 ◽  
Vol 69 (12) ◽  
pp. 1857 ◽  
Author(s):  
Paul Meulenbroek ◽  
Silke Drexler ◽  
Christoffer Nagel ◽  
Michael Geistler ◽  
Herwig Waidbacher
Keyword(s):  
Fish Habitat ◽  
Fish Fauna ◽  
Native Fish ◽  
Management Tools ◽  
Pass System ◽  
Barbus Barbus ◽  
Danube Catchment ◽  
Chondrostoma Nasus ◽  
Riverine Fish

Major sections of today’s rivers are man made and do not provide the essential requirements for riverine fish. A nature-like fish by-pass system in Vienna-Freudenau was assessed for its function as a fish habitat. The study was conducted continuously over 3 years; 15 years after construction of the by-pass. The chosen nature-like construction of the by-pass system functions like natural tributaries. More than 17000 fish and 43 species, including several protected and endangered species, in all life stages, including eggs, larvae, juveniles and adults, were captured. Furthermore, the indicator species of the free-flowing Danube, nase (Chondrostoma nasus) and barbel (Barbus barbus), migrated into the fish by-pass and successfully spawned before returning. Therefore, our results suggest that by-pass systems can function as an important habitat for the conservation of native fish fauna. The heterogenic habitat configuration provides conditions for all ecological guilds and, consequently, increases biodiversity. Finally, approved management tools are discussed. We suggest that fish by-pass channels may be suitable at other sites in the Danube catchment.

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