Swael-uitbarstings niu00e9 sondaar
Swael-uitbarstings niu00e9 sondaar

Swael-uitbarstings nié sondaar

Die ministerie sê toetse dui aan die temperatuur, suurstofvlakke en konsentrasie van swael in die water het nié veroorsaak dat vis uitspoel nie.
Elvira Hattingh
Elvira Hattingh - ‘n Swael-uitbarsting is nié die rede waarom talle Kaapse marsbankervis verlede week by Myl 8 naby Swakopmund uitgespoel het, of in die vlak water tussen rotse vasgekeer is nie. Veel eerder is seediere wat op dié visse jag maak, die oorsaak.

Die ministerie van visserye en mariene hulpbronne se woordvoerder, mnr. De Wet Siluka, het onlangs in ‘n nuusverklaring gesê monsters, wat ‘n dag ná die voorval van die seewater geneem is, het getoon die temperatuur, suurstofvlakke en konsentrasie van swael in die water was normaal.

Dié uitslae stem ooreen met satellietbeelde van Amerika se Nasionale Oseaniese en Atmosferiese Administrasie (Noaa).

Noaa monitor die kleur van seewater, asook die konsentrasie chlorofil, wat aanwysers van onder meer swael-uitbarstings is.

Die ministerie sê dit is dus moontlik dat die gedrag van roofdiere die uitspoel van talle visse by Myl 8 veroorsaak het.

Hulle sê ‘n skool masbankervis kon dalk tydens hoogwater naby die kus verby geswem het, toe dit deur roofdiere in die rigting van die rotse teen die strand gedwing is.

“Hierdie is ‘n baie algemene verskynsel en kan ongesiens verbygaan omdat daar nie baie nedersettings langs ons kus is nie,” het Siluka gesê.

Hy het gesê die ekonomiese en ekologiese impak van so ‘n voorval is gering.

Siluka sê in ‘n video wat aanlyn versprei is, is syfers oor die aantal gestrande visse “uit die duim gesuig”.

Hy sê ook geen wetenskaplike feite bestaan om dit te rugsteun nie en niemand het die visse “getel” nie.

Siluka het gesê tydens ‘n onlangse opname is geskat daar is sowat 36 miljard marsbankers.

Jaarliks word sowat 350 000 ton, oftewel 7 miljard individuele visse geoes.

Hy het gesê die winkelmandjies wat die mense in die video gebruik, kan elk sowat 150 visse dra.

“Gegewe dié getalle is dit duidelik die impak van die gestrande visse is nie noemenswaardig nie, maak nie saak hoe jy daarna kyk nie – uit ‘n ekologiese óf ekonomiese oogpunt.”

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Republikein 2024-04-23

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Premier League: Fulham 1 vs 3 Liverpool | Aston Villa 3 vs 1 Bournemouth | Crystal Palace 5 vs 2 West Ham | Everton 2 vs 0 Nottingham Forest | Wolves 0 vs 2 Arsenal | Luton Town 1 vs 5 Brentford | Sheffield United 1 vs 4 Burnley LaLiga: Sevilla 2 vs 1 Mallorca | Real Madrid 3 vs 2 Barcelona | Deportivo Alaves 2 vs 0 Atletico Madrid | Almería 1 vs 2 Villarreal | Getafe 1 vs 1 Real Sociedad | Girona 4 vs 1 Cadiz | Valencia 1 vs 2 Real Betis | Rayo Vallecano 2 vs 1 Osasuna | Celta Vigo 4 vs 1 Las Palmas SerieA: AC Milan 1 vs 2 Inter Milan | AS Roma 1 vs 3 Bologna | Monza 1 vs 2 Atalanta | Salernitana 0 vs 2 Fiorentina | Torino 0 vs 0 Frosinone | Sassuolo 0 vs 3 Lecce | Hellas Verona 1 vs 0 Udinese | Empoli 1 vs 0 Napoli European Championships Qualifying: Middlesbrough 3 vs 4 Leeds United | Blackburn Rovers 1 vs 3 Sheffield Wednesday | Queens Park Rangers 1 vs 0 Preston North End | Norwich City 1 vs 1 Bristol City | Huddersfield Town 0 vs 4 Swansea City | Stoke City 3 vs 0 Plymouth Argyle | Cardiff City 2 vs 1 Southampton | Rotherham United 0 vs 0 Birmingham City | Sunderland 0 vs 1 Millwall FC | Watford 0 vs 0 Hull City | Leicester City 2 vs 1 West Bromwich Albion FA Cup: Coventry City 3 vs 3 Manchester United | Manchester City 1 vs 0 Chelsea English Championship: Middlesbrough 3 vs 4 Leeds United | Blackburn Rovers 1 vs 3 Sheffield Wednesday | Queens Park Rangers 1 vs 0 Preston North End | Norwich City 1 vs 1 Bristol City | Huddersfield Town 0 vs 4 Swansea City | Stoke City 3 vs 0 Plymouth Argyle | Cardiff City 2 vs 1 Southampton | Rotherham United 0 vs 0 Birmingham City | Sunderland 0 vs 1 Millwall FC | Watford 0 vs 0 Hull City | Leicester City 2 vs 1 West Bromwich Albion Katima Mulilo: 15° | 36° Rundu: 15° | 35° Eenhana: 17° | 36° Oshakati: 18° | 35° Ruacana: 17° | 35° Tsumeb: 18° | 33° Otjiwarongo: 17° | 32° Omaruru: 16° | 34° Windhoek: 15° | 29° Gobabis: 18° | 31° Henties Bay: 15° | 20° Wind speed: 23km/h, Wind direction: S, Low tide: 09:08, High tide: 03:09, Low Tide: 21:13, High tide: 15:31 Swakopmund: 15° | 17° Wind speed: 31km/h, Wind direction: SW, Low tide: 09:06, High tide: 03:07, Low Tide: 21:11, High tide: 15:29 Walvis Bay: 16° | 25° Wind speed: 34km/h, Wind direction: SW, Low tide: 09:06, High tide: 03:06, Low Tide: 21:11, High tide: 15:28 Rehoboth: 17° | 31° Mariental: 20° | 33° Keetmanshoop: 20° | 33° Aranos: 20° | 33° Lüderitz: 14° | 27° Ariamsvlei: 20° | 32° Oranjemund: 13° | 20° Luanda: 26° | 28° Gaborone: 20° | 32° Lubumbashi: 15° | 27° Mbabane: 16° | 25° Maseru: 12° | 26° Antananarivo: 16° | 27° Lilongwe: 16° | 29° Maputo: 20° | 29° Windhoek: 15° | 29° Cape Town: 16° | 22° Durban: 19° | 25° Johannesburg: 19° | 29° Dar es Salaam: 23° | 28° Lusaka: 17° | 30° Harare: 15° | 30° Currency: GBP to NAD 23.77 | EUR to NAD 20.52 | CNY to NAD 2.65 | USD to NAD 19.23 | DZD to NAD 0.14 | AOA to NAD 0.02 | BWP to NAD 1.34 | EGP to NAD 0.39 | KES to NAD 0.14 | NGN to NAD 0.01 | ZMW to NAD 0.73 | ZWL to NAD 0.04 | BRL to NAD 3.7 | RUB to NAD 0.2 | INR to NAD 0.23 | USD to DZD 134.4 | USD to AOA 832.83 | USD to BWP 13.88 | USD to EGP 48.03 | USD to KES 133.98 | USD to NGN 1230 | USD to ZAR 19.23 | USD to ZMW 25.8 | USD to ZWL 321 | Stock Exchange: JSE All Share Index 73551.13 Up +0.26% | Namibian Stock Exchange (NSX) Overall Index 1526.82 Down -0.34% | Casablanca Stock Exchange (CSE) MASI 13302.28 Down -1.12% | Egyptian Exchange (EGX) 30 Index 28144.22 Down -1.67% | Botswana Stock Exchange (BSE) DCI Same 0 | NSX: MTC 7.75 SAME | Anirep 8.99 SAME | Capricorn Investment group 17.34 SAME | FirstRand Namibia Ltd 49 DOWN 0.50% | Letshego Holdings (Namibia) Ltd 4.1 UP 2.50% | Namibia Asset Management Ltd 0.7 SAME | Namibia Breweries Ltd 31.49 UP 0.03% | Nictus Holdings - Nam 2.22 SAME | Oryx Properties Ltd 12.1 UP 1.70% | Paratus Namibia Holdings 11.99 SAME | SBN Holdings 8.45 SAME | Trustco Group Holdings Ltd 0.48 SAME | B2Gold Corporation 47.34 DOWN 1.50% | Local Index closed 677.62 UP 0.12% | Overall Index closed 1534.6 DOWN 0.05% | Osino Resources Corp 19.47 DOWN 2.41% | Commodities: Gold US$ 2 304.95/OZ DOWN -0.0124 | Copper US$ 4.39/lb DOWN -0.0177 | Zinc US$ 2 786.00/T DOWN -1.69% | Brent Crude Oil US$ 86.39/BBP DOWN -0.009 | Platinum US$ 903.26/OZ DOWN -0.0192 Sport results: Premier League: Fulham 1 vs 3 Liverpool | Aston Villa 3 vs 1 Bournemouth | Crystal Palace 5 vs 2 West Ham | Everton 2 vs 0 Nottingham Forest | Wolves 0 vs 2 Arsenal | Luton Town 1 vs 5 Brentford | Sheffield United 1 vs 4 Burnley LaLiga: Sevilla 2 vs 1 Mallorca | Real Madrid 3 vs 2 Barcelona | Deportivo Alaves 2 vs 0 Atletico Madrid | Almería 1 vs 2 Villarreal | Getafe 1 vs 1 Real Sociedad | Girona 4 vs 1 Cadiz | Valencia 1 vs 2 Real Betis | Rayo Vallecano 2 vs 1 Osasuna | Celta Vigo 4 vs 1 Las Palmas SerieA: AC Milan 1 vs 2 Inter Milan | AS Roma 1 vs 3 Bologna | Monza 1 vs 2 Atalanta | Salernitana 0 vs 2 Fiorentina | Torino 0 vs 0 Frosinone | Sassuolo 0 vs 3 Lecce | Hellas Verona 1 vs 0 Udinese | Empoli 1 vs 0 Napoli European Championships Qualifying: Middlesbrough 3 vs 4 Leeds United | Blackburn Rovers 1 vs 3 Sheffield Wednesday | Queens Park Rangers 1 vs 0 Preston North End | Norwich City 1 vs 1 Bristol City | Huddersfield Town 0 vs 4 Swansea City | Stoke City 3 vs 0 Plymouth Argyle | Cardiff City 2 vs 1 Southampton | Rotherham United 0 vs 0 Birmingham City | Sunderland 0 vs 1 Millwall FC | Watford 0 vs 0 Hull City | Leicester City 2 vs 1 West Bromwich Albion FA Cup: Coventry City 3 vs 3 Manchester United | Manchester City 1 vs 0 Chelsea English Championship: Middlesbrough 3 vs 4 Leeds United | Blackburn Rovers 1 vs 3 Sheffield Wednesday | Queens Park Rangers 1 vs 0 Preston North End | Norwich City 1 vs 1 Bristol City | Huddersfield Town 0 vs 4 Swansea City | Stoke City 3 vs 0 Plymouth Argyle | Cardiff City 2 vs 1 Southampton | Rotherham United 0 vs 0 Birmingham City | Sunderland 0 vs 1 Millwall FC | Watford 0 vs 0 Hull City | Leicester City 2 vs 1 West Bromwich Albion Weather: Katima Mulilo: 15° | 36° Rundu: 15° | 35° Eenhana: 17° | 36° Oshakati: 18° | 35° Ruacana: 17° | 35° Tsumeb: 18° | 33° Otjiwarongo: 17° | 32° Omaruru: 16° | 34° Windhoek: 15° | 29° Gobabis: 18° | 31° Henties Bay: 15° | 20° Wind speed: 23km/h, Wind direction: S, Low tide: 09:08, High tide: 03:09, Low Tide: 21:13, High tide: 15:31 Swakopmund: 15° | 17° Wind speed: 31km/h, Wind direction: SW, Low tide: 09:06, High tide: 03:07, Low Tide: 21:11, High tide: 15:29 Walvis Bay: 16° | 25° Wind speed: 34km/h, Wind direction: SW, Low tide: 09:06, High tide: 03:06, Low Tide: 21:11, High tide: 15:28 Rehoboth: 17° | 31° Mariental: 20° | 33° Keetmanshoop: 20° | 33° Aranos: 20° | 33° Lüderitz: 14° | 27° Ariamsvlei: 20° | 32° Oranjemund: 13° | 20° Luanda: 26° | 28° Gaborone: 20° | 32° Lubumbashi: 15° | 27° Mbabane: 16° | 25° Maseru: 12° | 26° Antananarivo: 16° | 27° Lilongwe: 16° | 29° Maputo: 20° | 29° Windhoek: 15° | 29° Cape Town: 16° | 22° Durban: 19° | 25° Johannesburg: 19° | 29° Dar es Salaam: 23° | 28° Lusaka: 17° | 30° Harare: 15° | 30° Economic Indicators: Currency: GBP to NAD 23.77 | EUR to NAD 20.52 | CNY to NAD 2.65 | USD to NAD 19.23 | DZD to NAD 0.14 | AOA to NAD 0.02 | BWP to NAD 1.34 | EGP to NAD 0.39 | KES to NAD 0.14 | NGN to NAD 0.01 | ZMW to NAD 0.73 | ZWL to NAD 0.04 | BRL to NAD 3.7 | RUB to NAD 0.2 | INR to NAD 0.23 | USD to DZD 134.4 | USD to AOA 832.83 | USD to BWP 13.88 | USD to EGP 48.03 | USD to KES 133.98 | USD to NGN 1230 | USD to ZAR 19.23 | USD to ZMW 25.8 | USD to ZWL 321 | Stock Exchange: JSE All Share Index 73551.13 Up +0.26% | Namibian Stock Exchange (NSX) Overall Index 1526.82 Down -0.34% | Casablanca Stock Exchange (CSE) MASI 13302.28 Down -1.12% | Egyptian Exchange (EGX) 30 Index 28144.22 Down -1.67% | Botswana Stock Exchange (BSE) DCI Same 0 | NSX: MTC 7.75 SAME | Anirep 8.99 SAME | Capricorn Investment group 17.34 SAME | FirstRand Namibia Ltd 49 DOWN 0.50% | Letshego Holdings (Namibia) Ltd 4.1 UP 2.50% | Namibia Asset Management Ltd 0.7 SAME | Namibia Breweries Ltd 31.49 UP 0.03% | Nictus Holdings - Nam 2.22 SAME | Oryx Properties Ltd 12.1 UP 1.70% | Paratus Namibia Holdings 11.99 SAME | SBN Holdings 8.45 SAME | Trustco Group Holdings Ltd 0.48 SAME | B2Gold Corporation 47.34 DOWN 1.50% | Local Index closed 677.62 UP 0.12% | Overall Index closed 1534.6 DOWN 0.05% | Osino Resources Corp 19.47 DOWN 2.41% | Commodities: Gold US$ 2 304.95/OZ DOWN -0.0124 | Copper US$ 4.39/lb DOWN -0.0177 | Zinc US$ 2 786.00/T DOWN -1.69% | Brent Crude Oil US$ 86.39/BBP DOWN -0.009 | Platinum US$ 903.26/OZ DOWN -0.0192