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mortality

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Journal Article
Aquatic Ecosystem Health & Management (2002) 5 (4): 395–402.
Published: 01 December 2002
... location is similar to that which existed in the one degree cell immediately to its east approximately 30 years earlier. Coral cover in shallow water (<3 m depth) was <1 percent immediately following the 1998 event, due to near total mortality of vast areas of shallow Acropora (stagshorn) corals...
Journal Article
Aquatic Ecosystem Health & Management (2019) 22 (4): 473–480.
Published: 02 October 2019
...Absar Alam; Narendra Kumar Chadha; Sushant Kumar Chakraborty; Kripal Datt Joshi; Tarkeshwar Kumar; Shyamal Chandra Sukla Das; Sibnarayan Dam Roy; Anees Fatima Rizvi; Paromita Banerjee Sawant; Jeetendra Kumar Growth parameters, mortality, growth performance index and exploitation ratio of...
Journal Article
Aquatic Ecosystem Health & Management (2020) 23 (2): 196–209.
Published: 02 April 2020
...Faiza Y. Al-Yamani; Igor Polikarpov; Maria Saburova Kuwait, which is located in the northwestern Arabian Gulf, has experienced several incidences of marine life mortality during the past two decades. Mortalities included pelagic and benthic fish, Sea Cucumbers and Mollusks including pearl oysters...
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Published: 01 December 2006
Figure 3. Mortality of Nile tilapia fry during the experimental period at the different feeding treatments (Chlo. = Chlorella , Art. = Artemia , A.F. = Artificial feed). More
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Published: 01 July 2012
Figure 4. Rates of total annual survival ( S ) and instantaneous mortality ( Z ) for deepwater ciscoes captured in Lake Superior. Numbers in brackets represent 95% confidence intervals. More
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Published: 02 April 2016
Figure 1. DO thresholds for Cisco mortality (dashed line: lower DO threshold = 0.84×e 0.068×Temperature ) and Cisco growth impairment (solid line: upper DO threshold = lower DO threshold + 2.5) in relation to temperature (modelled from Rudstam and Magnuson, 1984). The white zone for temperature More
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Published: 02 April 2020
Fig. 1. Marine mortality evidences in Kuwait’s marine environment during 2005-2019: (A) satellite image (Google Earth) of Kuwait’s marine area with marine mortality sites (Catfish – orange circles; Sardinellas – red circles; Sea Cucumbers – blue circle; Mollusks – pink circle); dead Catfish (B More
Journal Article
Aquatic Ecosystem Health & Management (2005) 8 (3): 313–322.
Published: 01 July 2005
... samples taken from a highly-polluted reservoir, Billings, São Paulo, exhibited enrichment factors from 2.4 to 30 fold, compared to two other water bodies in the study, Barra Bonita Reservoir and Diogo Lake. High mortality rates occurred when Hyalella azteca and Ceriodaphnia dubia were exposed to Billings...
Journal Article
Aquatic Ecosystem Health & Management (2012) 15 (3): 294–302.
Published: 01 July 2012
...S. M. N. Amin; Aziz Arshad; Siti Shapor Siraj; B. Japar Sidik; M. Aminur Rahman Reproductive cycle, growth, mortality and exploitation rate of Acetes indicus were examined in the coastal waters of Malacca, Malaysia between February 2005 and March 2007. Monthly length frequency data were analyzed...
Journal Article
Aquatic Ecosystem Health & Management (2001) 4 (4): 479–492.
Published: 01 December 2001
... monitored. Mortalities in bacterial populations and low chemical oxygen demand removal efficiencies were detected when absorbable organic halogens and pesticide concentrations were above 100 and 120 mg l -1 , respectively. Short-term bioassays (using bacteria, protozoa or algae) and enrichment toxicity...
Journal Article
Aquatic Ecosystem Health & Management (2012) 15 (2): 227–233.
Published: 01 April 2012
... 2010 due to high thermal stress. Montipora was the most susceptible taxon, whereas Galaxea fascicularis and Pocillopora damicornis were among the least susceptible taxa. Mortality of Montipora was 21.7%, whereas for the remaining taxa it was less than 5%. No mortality was observed for tabular Acropora...
Journal Article
Aquatic Ecosystem Health & Management (2020) 23 (3): 366–372.
Published: 02 July 2020
.... niloticus. the fish were exposed to five different concentrations of malathion, chlorpyrifos and lambda-cyhalothrin (synthetic pyrethroid) pesticides in the laboratory using separate aquaria for each chemical. Mortality ranged from 100 to 0%. The 24 h LC 50 (median lethal concentration) for O. niloticus was...
Journal Article
Aquatic Ecosystem Health & Management (2003) 6 (1): 5–18.
Published: 01 January 2003
... stream bank erosion, loss of riparian vegetation and channel sedimentation. There is currently also evidence for adverse effects of river regulation and impoundments, introduced species, poor water quality, fisheries by-catch mortality and disease on platypus populations, but none of these has been well...
Journal Article
Aquatic Ecosystem Health & Management (2002) 5 (4): 435–441.
Published: 01 December 2002
...;35,000 cells ml −1 ) have no reported impacts; Category 2 blooms (≥35,000 to <200,000 cells ml −1 ) have potential negative impacts on feeding and growth in shellfish; Category 3 blooms (≥200,000 cells ml −1 ), discolor the water a yellow-brown and may cause severe impacts and mortality on shellfish...
Journal Article
Aquatic Ecosystem Health & Management (2002) 5 (3): 329–343.
Published: 01 September 2002
... hard surfaces, often with a bimodal or trimodal character, representing cohorts of different ages. At the sites studied, there was a large proportion of dead shells, suggesting colonization over an extended period, as well as a relatively high mortality rate due to burial by periodic catastrophic...
Journal Article
Aquatic Ecosystem Health & Management (2007) 10 (4): 449–457.
Published: 28 November 2007
... independent data from bottom trawl surveys and fisheries dependent data from catch assessment and frame surveys were used. Current exploitation levels and practices are analysed and linked to growth, mortality and reproductive characteristics of the stock. Abundance estimates and distribution patterns are...
Journal Article
Aquatic Ecosystem Health & Management (2007) 10 (4): 434–442.
Published: 28 November 2007
...M. Njiru; J. B. Okeyo-Owuor; M. Muchiri; I. G. Cowx; M. van der Knaap Length frequency data collected from 1998 to 2001 from commercial landings was used to estimate asymptotic length (L ∞ ), growth coefficient (K), mortality (Z, F, M), growth performance index (φ ′) and exploitation rate (E) of...
Journal Article
Aquatic Ecosystem Health & Management (2007) 10 (4): 443–448.
Published: 28 November 2007
... strategies exhibited by O. niloticus in the Nyanza Gulf of Lake Victoria. The study revealed that size at maturity had decreased concurrently with increasing fishing mortality. Observations on reproductive effort point to a fish species under stress. It is observed that the behavioural change in O. niloticus...
Journal Article
Aquatic Ecosystem Health & Management (2000) 3 (4): 449–458.
Published: 01 January 2000
... impact induced by 40 years of exposure to the local petroleum industry. Samples collected from four sites associated with the extraction, transportation and refinement of petroleum, and from two control sites, were tested at seven three-month intervals. Toxicological assays using acute mortality of brine...
Journal Article
Aquatic Ecosystem Health & Management (2000) 3 (3): 301–316.
Published: 01 January 2000
... only in the western area where organic pollutants are elevated in concentration. In the same sediment sampling site that caused the highest increase in mortality in Nitocra , there was also a significant response by Daphnia after UV treatment. Correlations between the toxicity enhancement (measured as...