Results 51 to 60 of about 25,575 (268)

Immediate effect of trawling on sea bottom & its living communities along Kerala coast- Winter School on Towards Ecosystem Based Management of Marine Fisheries – Building Mass Balance Trophic and Simulation Models [PDF]

open access: yes, 2004
Otter trawling, the most widely used towed bottom fishing gear, is known to have a wide range of impact on benthos. Seabed disturbance by mobile bottom fishing gear has emerged as a major concern related to the conservation of essential fish habitat ...
Kurup, B Madhusoodana
core  

Deep refuges: the distribution of marine fish in warming subtropics

open access: yesEcography, EarlyView.
In light of global climate change, identifying critical marine habitats and conserving them is essential. Marine conservation planning recommends designating cooler habitats as marine protected areas. The ‘deep‐reef refugia' hypothesis suggests that deeper, suitable habitats may allow species to undergo the evolutionary changes necessary to adapt to ...
Anat Tsemel   +7 more
wiley   +1 more source

Efficiency of the bottom trawl used for the Mediterranean International Trawl Survey (MEDITS) [PDF]

open access: yes, 1999
The aim of the work presented in this paper was to assess the relative efficiency of the GOC 73 sampling trawl used for the Mediterranean international trawl survey programme (MEDITS) compared with that of a typical Italian commercial trawl. The latter was chosen because it is commonly used by fishermen in the central Adriatic, where the experiment was
Fiorentini, Loris   +4 more
openaire   +1 more source

Small mesh trawling [PDF]

open access: yes, 1970
Experimental trawling operations for bottom fish were first begun in 1920 and consisted of surveys of the continental shelf around Ceylon and the west and east coasts of India.
De Bruin, G.H.P.
core  

Predicting oxygen thresholds of marine taxa to improve ecological forecasts

open access: yesEcography, EarlyView.
Species' ranges are shifting in response to increasing temperature and decreasing oxygen in coastal oceans. Predicting these shifts is limited by information on physiological oxygen thresholds and how they depend on temperature. Here we collate laboratory‐derived measurements of a common oxygen threshold, pcrit, for 148 animal species that span six ...
Timothy E. Essington   +2 more
wiley   +1 more source

Assessing the overlap between fishing and chondrichthyans exposes high‐risk areas for bycatch of threatened species

open access: yesEcosphere
Chondrichthyans (sharks, rays, skates, and chimaeras) make up one of the oldest and most ecologically diverse vertebrate groups, yet they face severe threats from fishing, necessitating improved management strategies. To effectively manage these species,
Federico Maioli   +7 more
doaj   +1 more source

Atmospheric CO2 emissions and ocean acidification from bottom-trawling

open access: yesFrontiers in Marine Science
Trawling the seafloor can disturb carbon that took millennia to accumulate, but the fate of that carbon and its impact on climate and ecosystems remains unknown.
Trisha B. Atwood   +12 more
doaj   +1 more source

Toxic Metals in Dried Marine Fish and Implications for Human Health in Bangladesh and Exporting Countries

open access: yesFood Safety and Health, EarlyView.
This study assessed toxic metals in five dried marine fish species from Bangladesh. Although most metals were within safe limits, chromium (Cr) consistently exceeded FAO/WHO standards, especially at Kuakata Beach. The findings highlight localized contamination hotspots and species‐specific bioaccumulation, while risk assessment supports the safety and ...
Shapla Khatun   +7 more
wiley   +1 more source

Environmental DNA from Seawater Samples Correlate with Trawl Catches of Subarctic, Deepwater Fishes. [PDF]

open access: yesPLoS ONE, 2016
Remote polar and deepwater fish faunas are under pressure from ongoing climate change and increasing fishing effort. However, these fish communities are difficult to monitor for logistic and financial reasons.
Philip Francis Thomsen   +5 more
doaj   +1 more source

Effect of bottom trawling on physico-chemical parameters, benthos and fish fauna of Mangalore Coast, Karnataka State [PDF]

open access: yes, 2012
Trawling, the most efficient method of catching fish world over is also found to be the most important human caused physical disturbance on the world's continental shelves and hence the physical destruction of ecosystems.Trawl gears often catch ...
Zacharia, P U
core  

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