نتایج جستجو برای: reef fishery

تعداد نتایج: 19157  

2006
Sindy Sterckx Luc Bertels Pieter Kempeneers Walter Debruyn Rudi Goossens

Coral reefs are endangered world-wide by devastating fishing methods (overfishing, dynamite and cyanide fishery), pollution, tourism, environmental changes and bleaching. The aim of this project is to monitor coral reefs and associated ecosystems (mangroves, seagrass beds) by integrating different remote sensing data with spectral libraries and field measurements. The study area is Fordate, a s...

2012
Renae K. Hovey Kimberly P. Van Niel Lynda M. Bellchambers Matthew B. Pember

BACKGROUND The western rock lobster, Panulirus cygnus, is endemic to Western Australia and supports substantial commercial and recreational fisheries. Due to and its wide distribution and the commercial and recreational importance of the species a key component of managing western rock lobster is understanding the ecological processes and interactions that may influence lobster abundance and di...

Journal: :Current Biology 2005
Shlomo Trachtenberg

commercial species a couple of years ago. The device uses strobe lights to take nighttime visual images of the reef. The results of these new studies reveal the deep-water reefs to have nearly 100 per cent living coral cover. Until recently, little information was available on the structure and composition of the deeper coral reefs due to their depths at 30 to 75 metres, which are beyond the sa...

2013
Mariska Weijerman Elizabeth A. Fulton Frank A. Parrish

Three trophic mass-balance models representing coral reef ecosystems along a fishery gradient were compared to evaluate ecosystem effects of fishing. The majority of the biomass estimates came directly from a large-scale visual survey program; therefore, data were collected in the same way for all three models, enhancing comparability. Model outputs-such as net system production, size structure...

Journal: :international journal of environmental research 2015
m. z. moustafa z. q. moustafa m. s. moustafa s. e. moustafa z. d. moustafa

zaki’s reef is located in the gulf of suez, a narrow portion of the red sea, with exceptionally dry and hot climate and lacks almost all scientific data. this research intends to describe the area’s unique climatology, which may reveal correlations between the reef’s existence at high latitude and extreme climate conditions. air temperature at zaki’s reef fluctuated between 0.3 and 58.6oc with ...

Journal: :Fisheries Research 2021

In many parts of the world, particularly remote and underdeveloped regions, reports fisheries catch, effort, landing data are limited. order to implement effective fishing regulations protect natural stocks, understanding pressure, key target species, catch composition, value each species is vital. regions where published limited, sampling numerous small boats sites not feasible, fish market su...

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