Results 21 to 30 of about 52,298 (263)

Temporal Change and Fishing Down Food Webs in Small-Scale Fisheries in Morondava, Madagascar

Frontiers in Marine Science, 2022
Small-scale fisheries (SSFs) are often undervalued and unmanaged as a result of a lack of data. A study of SSFs in Menabe, western Madagascar in 1991 found diverse catches and a productive fishery with some evidence of declining catches.
Charlotte Gough, Charlotte Gough, Mebrahtu Ateweberhan, Brendan J. Godley, Alasdair Harris, Frédéric Le Manach, Erude Zafindranosy, Annette C. Broderick   +7 more
doaj   +1 more source

Benthic communities under anthropogenic pressure show resilience across the Quaternary [PDF]

Royal Society Open Science, 2017
The Southeast Pacific is characterized by rich upwelling systems that have sustained and been impacted by human groups for at least 12 ka. Recent fishing and aquaculture practices have put a strain on productive coastal ecosystems from Tongoy Bay, in ...
Julieta C. Martinelli, Luis P. Soto, Jorge González, Marcelo M. Rivadeneira   +3 more
doaj   +1 more source

Key Environmental Impacts along the Mediterranean Coast of Israel in the Last 100 Years

Journal of Marine Science and Engineering, 2022
In the last 100 years, the population of the land of Israel has increased dramatically, accompanied by a very intense and accelerated economic and industrial growth.
Ehud Spanier, Dov Zviely
doaj   +1 more source

Increased natural mortality at low abundance can generate an Allee effect in a marine fish [PDF]

Royal Society Open Science, 2014
Negative density-dependent regulation of population dynamics promotes population growth at low abundance and is therefore vital for recovery following depletion. Inversely, any process that reduces the compensatory density-dependence of population growth
Anna Kuparinen, Jeffrey A. Hutchings
doaj   +1 more source

Assessment of Coral Reef Fish Stocks From the Nansha Islands, South China Sea, Using Length-Based Bayesian Biomass Estimation

Frontiers in Marine Science, 2021
The South China Sea (SCS) is one of the world’s main centers for coral reef diversity, with more than one-third of all reef fish species being found in this area.
Kui Zhang, Kui Zhang, Kui Zhang, Jun Zhang, Jun Zhang, Jun Zhang, Dengfu Shi, Dengfu Shi, Zuozhi Chen, Zuozhi Chen, Zuozhi Chen   +10 more
doaj   +1 more source

Genetic Diversity and Population Structure of Squalus cf. mitsukurii (Chondrichthyes: Squalidae) Revealed by ddRAD Sequencing. [PDF]

Anim Genet
ABSTRACT Assessing genetic structure across ocean basins is essential to understand connectivity and guide conservation in data‐deficient open‐water sharks. In this study, we examined the population genomics of Squalus cf. mitsukurii by analyzing tissue samples collected from two distant regions: California, USA (Pacific Ocean) and Pernambuco, Brazil ...
Adachi AMCL, Ariza AA, Ribeiro GDS, Roque PCG, Rotundo MM, Vianna M, Delpiani G, Delpiani SM, de Astarloa JMD, Oliveira C, Foresti F, da Cruz VP.   +11 more
europepmc   +2 more sources

Stock Status and Unsustainable Exploitation Dynamics of Key Commercial Species in the Nile Delta Lakes, Egypt

Fishes
Effective fisheries management relies on accurate stock assessments to ensure sustainable exploitation and long-term ecosystem stability. Fisheries from the Nile Delta lakes of Egypt—comprising Manzala, Burullus, Edku, and Mariout—are economically ...
Sahar Fahmy Mehanna, Mohamed Samy-Kamal
doaj   +1 more source

Overfishing of the Common Snook

Undergraduate Journal of Mathematical Modeling: One + Two, 2012
The chief aim of this project is to determine if the populations of the common snook, Centropomus Undecimalis, in the Atlantic and Gulf coast are being affected by overfishing.
Allison Ashcroft
doaj   +1 more source

Exploring the population ecological characteristics and the stock status of mitre squid (Uroteuthis chinensis Gray, 1849) in Belitung waters, Indonesia

Brazilian Journal of Biology
The intensive fishing and lack of data for squid fisheries in Belitung waters have increased the risk of stock population decline, which could lead to large economic losses.
R. Kurniawan, Tirtadanu, R. Puspasari, M. R. A. Putri, K. Amri, A. Rahman, Y. Sugianti, Mujiyanto, P. Lestari, K. Wagiyo   +9 more
doaj   +1 more source

Economic value of small-scale sea cucumber fisheries under two contrasting management regimes

Ecology and Society, 2020
Small-scale fisheries supplying tropical sea cucumbers to Asian markets frequently overharvest stocks, incurring unknown loss of economic value. An indication of such value loss can provide economic incentives for better conservation and management ...
Maria Eggertsen, Hampus Eriksson, Matthew J. Slater, Caroline Raymond, Maricela de la Torre-Castro   +4 more
doaj   +1 more source