000			03883nab a22003494ib4500
003			PH-QcNFR
005			20240229084814.0
008			240220c||||||||ph fr j o||||f0 a|eng|d
022	1		_a2672-2836 (Online)
040			_aPH-QcNFR _beng _cPH-QcNFR
100	1		_aFurio, Elsa F. _91039
245	1	0	_aSpatio - temporal distribution of ichthyoplankton in Manila Bay in relation to oceanographic conditions / _cElsa F. Furio and five others
264		1	_aQuezon City, Philippines : _bBureau of Fisheries and Aquatic Resources , _c2017
336			_atxt _btxt
337			_ac _bc
338			_acr _bcr
347			_atext file _bPDF
504			_aIncludes bibliographical references
520	3		_aManila Bay faces serious problems today such as pollution, coastal area reclamation and infrastructure, overfishing, and other activities that worsen the present condition of the bay. It is considered as one of the major fishing grounds in the Philippines. Fish eggs and larvae collection was carried out to determine their distribution, abundance, and composition in the bay. Eight established sampling stations were placed throughout the bay with an average distance of 5-6 nautical miles apart and sampled every other month on a monsoonal basis. Bongo net (360 microns mesh size, 1.5 meters in length, and a diameter of 50-centimeter mouth opening) with attached calibrated flowmeter was used in collecting fish larvae. Physical (salinity, temperature,), chemical (nitrite, nitrate, phosphate, silicate, dissolved oxygen), and biological (phytoplankton, zooplankton) parameters were also carefully studied to be able to explain such uncommon event within the bay. In spite of the current status and worsening condition of water quality of the bay, high abundances of fish eggs and larvae were consistently observed during the northeast monsoon surveys (March) from 2012 to 2015. A total of 3,008 individuals were identified belonging to 34 fish families. The highest fish egg density was observed during March 2013 with 1,550 ind./100m3, followed by March 2012 and 2015 with 1,484 ind./100m3 and 1,182 ind./100m3, respectively. An abundance of fish larvae was observed during March 2015 with 414 ind./100m3, followed by March 2012 (329 ind./100m3), and March 2014 (311 ind./100m3). The lowest density observed was in September 2012 with a density of 132 ind/100m3 fish eggs and 46 ind/100m3 fish larvae. The results were consistent that most fish eggs aggregate in the middle part of the bay especially in Stations 4 and 2 from 2012-2015. For fish larvae, they were consistently found in the eastern part of the bay (stations 6, 8, and 7) throughout the duration of the study, it was also the areas where high concentrations of phytoplankton, zooplankton, and nutrients were observed. A high abundance of fish eggs and fish larvae was observed during northeast monsoon than southwest monsoon. In addition, fish larvae family was dominated by small pelagic fish such as sardines, slipmouths, and mullets. The most dominant fish families found were Clupeidae, followed Leiognathidae, and Nemipteridae. Sillaginidae and Mugilidae were also included in the top five abundant families that occur during every sampling period were.
546			_aeng _beng
650		0	_2LCSH _a Fishes _xLarvae _93721
650		0	_2LCSH _aEcology _980
650		0	_2LCSH _aFisheries resources _93722
650		0	_2AGROVOC _aIchthyoplankton _94270
700	1		_aBorja, Valeriano M. _eauthor _91045
700	1		_aMetillo, Ephrime B. _eauthor _93674
700	1		_aSantos, Mudjekeewis D. _eauthor _91064
700	1		_aSy, Angelica Gabrielle A. _eauthor _93675
700	1		_aTobias, Marvin L. _eauthor _93676
773	0		_078 _9163 _aPhilippines. _oIRC00031 _tThe Philippine Journal of Fisheries _x2672-2836 (Online) _gVolume 24, Issue no. 1 (January - June 2017), page 83 - 93
942			_2lcc _n0 _cJA _iIMC000173
999			_c1002 _d1002