1-20 of 658 Search Results for

habitat

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Journal Article
Aquatic Ecosystem Health & Management (2012) 15 (3): 355–368.
Published: 01 July 2012
...Owen T. Gorman; Daniel L. Yule; Jason D. Stockwell Diel migration patterns of fishes in nearshore (15–80 m depth) and offshore (>80 m) waters of Lake Superior were examined to assess the potential for diel migration to link benthic and pelagic, and nearshore and offshore habitats. In our...
Journal Article
Aquatic Ecosystem Health & Management (2012) 15 (3): 333–354.
Published: 01 July 2012
... benthic and pelagic and nearshore and offshore habitats. Copyright © AEHMS 2012 We observed a distinct group of fish in the deep depth zone during each sampling event having target strengths ranging between −52 and −33 dB (modal TS of −39 dB to −41 dB). These targets were consistent with adult...
Journal Article
Aquatic Ecosystem Health & Management (2001) 4 (4): 401–412.
Published: 01 December 2001
...Y. Souchon; P. Keith Abstract Characteristics of French water bodies and fish fauna are described with special reference to physically altered streams. Recent researches on fish physical habitat have produced new insights on: models of probability of fish distributions at a watershed scale, fish...
Journal Article
Aquatic Ecosystem Health & Management (2004) 7 (1): 85–99.
Published: 01 January 2004
...James A. Sawyer; Paul M. Stewart; Michael M. Mullen; Thomas P. Simon; Holly H. Bennett Most states in the U.S. are currently developing methods for assessing the integrity of aquatic habitats through the development of regional biocriteria. While multimetric indices have been used to show community...
Journal Article
Aquatic Ecosystem Health & Management (2000) 3 (1): 179–189.
Published: 01 January 2000
...P.M. Stewart; J.T. Butcher; T.O. Swinford Abstract Three watersheds within a marsh system draining into Lake Michigan in northwest Indiana, USA, were studied for differences among land use, habitat conditions and water quality to determine their influence on macroinvertebrate community structure...
Journal Article
Aquatic Ecosystem Health & Management (2001) 4 (4): 339–341.
Published: 01 December 2001
... human usage inevitably leads to degradation of freshwater habitats and negative impacts on their biota, especially their fish faunas. Freshwater fish are both an important resource and a key indicator. Freshwater fishes provide significant fishery resources for many countries supporting subsistence...
Journal Article
Aquatic Ecosystem Health & Management (2001) 4 (4): 343–355.
Published: 01 December 2001
... community ecology of river and stream biotas as a whole, to focussed studies on habitats of threatened species, design of fish passage facilities for migratory fishes, the effects of introduced exotic species on the indigenous fauna, the impacts of human stream perturbation on aquatic values including fish...
Journal Article
Aquatic Ecosystem Health & Management (2001) 4 (4): 357–365.
Published: 01 December 2001
...Yoshinori Taniguchi; Mikio Inoue; Yoichi Kawaguchi Abstract Japanese freshwater fish habitats can be generally categorized into 1) rivers and streams, 2) ponds and lakes, and 3) rice fields and small irrigation channels connecting them. Of these, reviewing studies on stream fish habitat is the...
Journal Article
Aquatic Ecosystem Health & Management (2001) 4 (4): 367–380.
Published: 01 December 2001
... account for 9.3 percent of global inland fish production. India's natural capital of fish habitat resource has been eroded as reflected in loss of bio-diversity and reduced fish landings. Studies on the ecology, environment and fisheries of five major river systems in addition to reservoirs and flood...
Journal Article
Aquatic Ecosystem Health & Management (2001) 4 (4): 381–391.
Published: 01 December 2001
...D. C. Bobori; P. S. Economidis; E. G. Maurakis Abstract Objectives are to (1) characterize the current status of and threats to freshwater fish habitats, native fishes, and fisheries in Greece; (2) canvas the states and priorities of fisheries science, legislation, and regulations for freshwater...
Journal Article
Aquatic Ecosystem Health & Management (2001) 4 (4): 393–400.
Published: 01 December 2001
...S. Hughes; M. Aprahamian; J. D. Armstrong; R. Gardiner; N. Milner Abstract The general understanding of how habitats influence populations of freshwater fishes in Great Britain is reviewed briefly as a component of a Europe-wide comparison. Great Britain, an island of temperate climate in the north...
Journal Article
Aquatic Ecosystem Health & Management (2001) 4 (4): 413–421.
Published: 01 December 2001
...Juha Jurvelius; Heikki Auvinen Abstract The area of Finnish inland waters is 33,500 km 2 . Forty fish species, eleven of them indigenous, have been encountered in the area. The annual catch from inland fisheries is around 40,000 metric tons. The largest changes in fish habitats in Finnish inland...
Journal Article
Aquatic Ecosystem Health & Management (2001) 4 (4): 423–436.
Published: 01 December 2001
...Charles K. Minns Abstract Canada's diverse freshwaters support a rich biodiversity of more than 200 species. Canada has strong legislation capable of conserving and protecting freshwaters habitats. Fish are a key driver and indicator for restoration and conservation efforts. Many of Canada's...
Journal Article
Aquatic Ecosystem Health & Management (2001) 4 (4): 453–461.
Published: 01 December 2001
...J.R.M. Kelso; R.J. Steedman; J.M. Gunn; K.E. Smokorowski; N.P. Lester; W.G. Cole; C.K. Minns; K.H. Mills Abstract Resource managers must often act to protect fisheries and fish habitat without the certainty that their actions are justified. Delivering the science needed to support and direct...
Journal Article
Aquatic Ecosystem Health & Management (2011) 14 (4): 443–455.
Published: 01 October 2011
..., then on primary producers and habitat structure, and finally on composition of wetland fauna. Accounting for watershed size might further resolve understanding of how watershed landuse changes affect coastal wetlands. Here, we take advantage of data spanning a suite of coastal wetlands on Lake...
Journal Article
Aquatic Ecosystem Health & Management (2004) 7 (2): 249–267.
Published: 01 April 2004
... than in very protected or exposed marshes, while another genus, Pisidium , was important in separating wet meadows from other habitats. Several snails were found in either very protected or protected marshes (e.g., Lymnaeidae including Fossaria parva , Physa gyrina , Pyrgulopsis lustricus ). The...
Journal Article
Aquatic Ecosystem Health & Management (2008) 11 (3): 289–297.
Published: 25 August 2008
...Chhatra M. Sharma This paper deals with the status of fish, fisheries, and habitats in Nepal. Being a landlocked country, it has only freshwater habitats covering an area of 745,000 hectares (5% of the total area) that includes rivers, lakes, ponds, wetlands, reservoirs, and irrigated rice fields...
Includes: Supplementary data
Journal Article
Aquatic Ecosystem Health & Management (2008) 11 (3): 272–288.
Published: 25 August 2008
... 9.3 percent of global inland fish production. India's natural capital of fish habitat resource has been eroded as reflected in loss of biodiversity and reduced fish landings. Studies on the ecology, environment and fisheries of five major river systems, in addition to reservoirs and flood plain lake...
Journal Article
Aquatic Ecosystem Health & Management (2010) 13 (1): 85–93.
Published: 26 February 2010
... because of prevailing socio-economic conditions. Few regulatory mechanisms presently exist for protecting aquaculture environments. Production from inland openwater capture fisheries is declining due to over-exploitation and habitat degradation. However, aquaculture production, which mostly follows...
Journal Article
Aquatic Ecosystem Health & Management (2010) 13 (3): 241–254.
Published: 31 August 2010
... sediment mantles impact negatively on demersal algae and fauna in both the sandy and rocky habitats, sometimes burying completely the photosynthetic algae, stopping primary and secondary demersal productivity and smothering the habitats for the infauna of the algal mats. Effectively, the food resources...