نتایج جستجو برای: rocky shore

تعداد نتایج: 14128  

ژورنال: علمی شیلات ایران 2011
اشجع اردلان, آریا, ایزدی, سحر, حسین زاده صحافی, همایون, شکری, محمد رضا,

A one-year study (May 2007-April 2008) was undertaken to identify the echinoid species of intertidal sandy and rocky shores of the Qeshm Island. An intertidal sandy location and a rocky shore were surveyed in southern coasts of Qeshm Island, in northern Persian Gulf. Specimens were monthly collected along two 30m wide by 30 60m long (according to the tidal range) transects located approximately...

Journal: :international journal of environmental research 2013
m. jahanpanah a. savari

to study the population structure of decapods in the intertidal zone of bushehr rocky shores, some random sample collection from four rocky and rubble shores of bushehr were done using a 50×50 quadrates sampling unit, in four successive seasons from autumn 2009 to summer 2010. totally 8 speciesbelonging to 5 family of decapods were identified and counted. in the whole course of sample collectio...

Journal: :international journal of environmental research 0
m. jahanpanah marine environment expert, port and maritime administration of khoramshahr, khoramshahr, iran. faculty of marine science, khoramshahr university of marine science and technology, khoramshahr, iran a. savari marine environment expert, port and maritime administration of khoramshahr, khoramshahr, iran

to study the population structure of decapods in the intertidal zone of bushehr rocky shores, some random sample collection from four rocky and rubble shores of bushehr were done using a 50×50 quadrates sampling unit, in four successive seasons from autumn 2009 to summer 2010. totally 8 speciesbelonging to 5 family of decapods were identified and counted. in the whole course of sample collectio...

ژورنال: علمی شیلات ایران 2012
اشجع اردلان, آریا, امینی یکتا, فاطمه, شکری, محمد رضا,

Gastropod communities were investigated along two intertidal sandy and rocky shores in Qeshm Island, the northern Persian Gulf, IR Iran to identify the species of the family Cypraeidae. Monthly sampling was undertaken from May 2007 to April 2008 by haphazardly placing eighteen 0.25 m2 quadrates along two 30m wide transects located approximately 300m apart, perpendicular to the sea, in each sand...

Journal: :Bulletin of the Ecological Society of America 2006

Journal: :Molecular ecology 2004
Ricardo Pereyra Martin I Taylor George F Turner Ciro Rico

Several studies have demonstrated strong population structuring over small distances in the rocky-shore mbuna cichlid fishes from Lake Malawi, suggesting the potential for allopatric speciation. However, many endemic Lake Malawi cichlids are neither mbuna, nor confined to rocky shores. Using microsatellites, we investigated the population structure in three species of the non-mbuna genus Protom...

Journal: :Marine pollution bulletin 2007
Enric Ballesteros Xavier Torras Susana Pinedo María García Luisa Mangialajo Mariona de Torres

Macroalgae is a biological key element for the assessment of the ecological status in coastal waters in the frame of the European Water Framework Directive (WFD, 2000/60/EC). Here we propose a methodology for monitoring water quality based on the cartography of littoral and upper-sublittoral rocky-shore communities (CARLIT, in short). With the use of spatial databases, GIS, and available inform...

2016
Enrique Blanco Gonzalez Halvor Knutsen Per Erik Jorde

Habitat fragmentation has been suggested to be responsible for major genetic differentiations in a range of marine organisms. In this study, we combined genetic data and environmental information to unravel the relative role of geography and habitat heterogeneity on patterns of genetic population structure of corkwing wrasse (Symphodus melops), a rocky shore species at the northern limit of its...

2009
Valter Amaral Henrique N. Cabral Stuart Jenkins Stephen Hawkins José Paula

Estuarine and nearshore marine areas are vital habitats for several fish and benthic invertebrates. The shore crab Carcinus maenas (Crustacea: Brachyura: Portunidae) inhabits a variety of coastal, estuarine and lagoon habitats. At low tide, habitat structural complexity may be most important for crabs in the intertidal, providing refuge from predation and desiccation. The quality of different v...

2014
Catherine A. Pfister Jack A. Gilbert Sean M. Gibbons Robert Toonen

Rocky shore microbial diversity presents an excellent system to test for microbial habitat specificity or generality, enabling us to decipher how common macrobiota shape microbial community structure. At two coastal locations in the northeast Pacific Ocean, we show that microbial composition was significantly different between inert surfaces, the biogenic surfaces that included rocky shore anim...

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