Des poissons morts, des enquêtes et des rivières différentes by Simon Calla

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Population Dynamics of the Crocodile Shark, <i>Pseudocarcharias kamoharai</i>, in the Tropical Equatorial Pacific Ocean, Ecuador by Marcos Douglas Calle-Morán, Eugenio Alberto Aragón-Noriega, Ana Rosa Hernández-Téllez, Emigdio Marín-Enríquez, Javier Tovar-Ávila, Juan Francisco Arzola-González, Jorge Payán-Alejo

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Pathogenicity test bacteria from Oreochromis niloticus and Clarias gariepinus aquaculture ponds by Esti Handayani Hardi, Aldi M. Halim, Rudy Agung Nugroho, Mira Mawardi, Alim Isnansetyo, Angela Mariana Lusiastuti, Widianingsih Rahayu, Andi Niklani, Gina Saptiani

“…The result showed that each bacteria caused mortality in fish: E. coli bacteria caused fish mortality 23.33-66.67%; E. cloacae 10.00 to 90.00%; and E. amnigenus by 3.33-56.67%. …”
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Effect of Pozzolanic Cement Exposure in Nile Tilapia (Oreochromis niloticus) by Şevki Kayış, Mert Minaz, Akif Er

“…The increase in pH level showed a positive correlation with the increase in fish mortality (p&lt;0.05). In addition, PC negatively affected the hematological parameters of fish. …”
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Occurrence of Fungi and Mycotoxins in Fish Feeds and Their Impact on Fish Health by Esther Marijani, Emmanuel Kigadye, Sheila Okoth

“…The outcomes of mycotoxin contamination in fish feeds are not different from other animal species intended for human consumption, and they are directly associated with production losses, particularly decreased weight gain and feed conversion, impaired immune system and reproductive performance, and increased fish mortality. Fish may also carry mycotoxin residues along the food chain, thus compromising human health. …”
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Evaluating Batch Imaging as a Method for Non-Lethal Identification of Freshwater Fishes by Conrad James Pratt, Nicholas E. Mandrak

“…These include handling-related fish injury and mortality, the need for a fish-identification expert to be present during field sampling, and additional fish mortality due to physical voucher collection. These shortcomings may be overcome using new methods such as environmental DNA (eDNA) or image analyses. …”
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Determining Factors and Zootechnical Output of Biosecurity Practices in Fish Farms in the Wouri Division, Cameroon by Fonkwa Georges, Makombu Judith Georgette, Kamdem Alex Henri, Kametieu Djamou Franck, Nack Jacques, Awah-Ndukum Julius, Tomedi Eyango Minette, Tchoumboue Joseph

“…The lack of finance (57.57%) was the main constraint to the biosecurity practice. The high fish mortality rate (>15%) was recorded in 66% of the farms. …”
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The addition of salt in the water media containing zeolite and active charcoal on closed system transportation of gourami fish fry Osphronemus goramy Lac. by Kukuh Nirmala, Yani Hadiroseyani, Riza Purbo Widiasto

“… Transportation of fish fry with high density in closed system will reduce levels of O2, increasing CO2 and NH3, will also elevate the fish stress so that increase fish mortality. To reduce the effects of increased CO2 and NH3 can be applied by using zeolite and activated charcoal, while to reduce the fish stress is through the addition of salt. …”
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Dietary β-Mannanase Affects the Growth, Antioxidant, and Immunes Responses of African Catfish, Clarias gariepinus, and Its Challenge Against Aeromonas hydrophila Infection by Ibrahim Adeshina, Bilal Ahamad Paray, Eijaz Ahmed Bhat, Shahid Sherzada, Olaolu O. Fawole, Dalhatu J. Bawa, Thais Pereira da Cruz, Lateef O. Tiamiyu

“…In addition, fish-fed diets comprising 6000 TMU β-mannanase/kg diet showed the lowest rates of fish mortality (7.5%) (p <0.05). Therefore, feeding African catfish, Clarias gariepinus, β-mannanase enhanced growth performance, increased activity of digestive enzymes, gut morphology, enhanced generation of short-chain fatty acids, digesta potential of hydrogen (pH), and improved antioxidant profiles and immunity at the optimum dose of 5800 TMU/kg diet. …”
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Sex determination and acclimation response of dwarf snakehead fish Channa limbata from West Java by Dinar Tri Soelistyowati, Agus Oman Sudrajat, Harton Arfah, Alimuddin Alimuddin, Riva Hafidah, Yudha Hanggara, Thomas Edison

“…Snakehead fish live in shallow, slow-flowing river waters with a temperature of 20.2-21.3°C, TDS 16-24 mg/L at neutral pH, while the rearing water temperature and TDS are higher (temperature: 24.9-27.6°C; TDS: 88-110 mg/L). The fish mortality rate during acclimation reached 25% in fish measuring >150 mm of length on tenth day, while fish measuring <150 mm more adaptive with 100% survival. …”
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A combined use of Panax ginseng extract and the probiotic, Lactobacillus plantarum in the diet of Asian seabass, Lates calcarifer: Effects on growth, immunity and survival after ba... by Xiaojie Hou, Jianfeng Zhang, Neda Behmagham, Hamed Ghafarifarsani

“…LAC-P + GINS (1 %) treatment showed the lowest (35.2 ± 4.5 %) fish mortality (P < 0.01). In conclusion, fish supplemented with LAC-P and GINS, especially at 1 % level, showed significant improvements in growth, digestive enzyme activities, antioxidant enzyme levels, and immune responses. …”
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The History of the Brazilian Sardine (<i>Sardinella brasiliensis</i>) Between Two Fishery Collapses: An Ecosystem Modeling Approach to Study Its Life Cycle by Rafael Schroeder, Angélica Petermann, Alberto Teodorico Correia

“…Furthermore, the higher fishing mortality may have led the stock to collapse.…”
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Population biology of European hake (Merluccius merluccius, Linnaeus, 1758) in Greece by Alexandros Theocharis, Maria Vlachou, Alexis Conides, Dimitris Klaoudatos

“…The exploitation rate (E = 0.72) indicated that the population is under a high level of exploitation and the Z/K ratio (7.81) further indicated that mortality dominates growth. Fishing mortality at the maximum sustainable yield (FMSY = 0.29) was estimated considerably lower than the present fishing mortality (F = 0.69). …”
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Artificial Reefs in Florida 101: Effects on Fisheries--Part 4 of an Artificial Reef series by Lisa Chong, Angela B. Collins, Holly Abeels, Anna Braswell, Andrew Ropicki, Edward V. Camp

“…But it is increasingly apparent that they are likely to increase fishing mortality more than they increase fish populations. …”
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Stock status of kawakawa Euthynnus affinis (Cantor, 1849) fishery using surplus production model: An assessment from coastal waters of Tamil Nadu, Bay of Bengal, Southeast coast of... by Rajendran Abinaya, Moosambikandy K. Sajeevan

“…The biological reference points result of maximum sustainable yield (MSY) or biomass giving MSY (Bmsy) and fishing mortality giving MSY (Fmsy) of all the models indicated that the kawakawa stock in Tamil Nadu was subjected to overfishing and heading towards overfished status in recent decades. …”
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Population dynamics of Cynoglossus senegalensis from the coastal waters of Greater Accra, Ghana by Samuel K. K. Amponsah, Berchie Asiedu, Pierre Failler, Nii Amarquaye Commey

“…Mortality parameters were calculated as total mortality rate (Z) = 0.81 yr−1, the natural mortality rate (M) = 0.56 yr-1, and fishing mortality rate (F) 0.26 yr-1. The exploitation rate (E) of 0.31 was lower than both the optimum level and the exploitation rate at MSY (Emax = 0.64), indicating that C. senegalensis fishery in Ghana is underexploited. …”
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Effects of environmental variability on population dynamics of golden carpet shell clam (Polititapes aureus) by José Manuel Parada, José Molares

“…The instantaneous mortality rate for individuals aged 1 and 2 years was 0.94 in spring-summer and 0.14 in autumn-winter. The fishing mortality rate had little effect on the population. …”
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Age, growth, mortality and population structure of Polititapes aureus (Mollusca: Bivalvia) in the Gulf of Gabes, Tunisia by Derbali Abdelkarim

“…Total mortality (Z) was estimated from the length-converted catch curve at 0.85 yr-1 and fishing mortality (F) at 0.03 yr-1. Both values of natural mortality (M = 0.82 yr-1) derived from bivalve literature and based on Pauly’s (1980) empirical equation (M = 0.83 yr-1) developed for fish were comparable. …”
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Population dynamics and yield estimation of Common Carp (Cyprinus carpio, Linnaeus, 1758) in Ayalew reservoir, Gamo Zone, Southern Ethiopia by Buchale Shishitu Shija, Atnafu W/yohans Firew

“…The estimated values of the total, natural and fishing mortalities were Z = 1.23, M = 0.55 and F = 0.68, respectively. …”
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Population dynamics and yield estimation of Common Carp (Cyprinus carpio, Linnaeus, 1758) in Ayalew reservoir, Gamo Zone, Southern Ethiopia by Buchale Shishitu Shija, Atnafu W/yohans Firew

“…The estimated values of the total, natural and fishing mortalities were Z = 1.23, M = 0.55 and F = 0.68, respectively. …”
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