MARC details
| 000 -LEADER |
|---|
| fixed length control field |
02870nab a22003014ib4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
|---|
| control field |
PH-QcNFR |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
|---|
| control field |
20240621145619.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
|---|
| fixed length control field |
240201c||||||||ph fr j o||||f0 a|eng|d |
| 040 ## - CATALOGING SOURCE |
|---|
| Original cataloging agency |
PH-QcNFR |
| Language of cataloging |
eng |
| Transcribing agency |
PH-QcNFR |
| 100 1# - MAIN ENTRY--PERSONAL NAME |
|---|
| Personal name |
Marquez, Josefina R.S. |
| 9 (RLIN) |
2837 |
| 245 10 - TITLE STATEMENT |
|---|
| Title |
Age and size at sexual maturity of white goby (Glossogobius Giurus), a common species of fish of Laguna de Bay with notes on its food habits / |
| Statement of responsibility, etc. |
Josefina R.S. Marquez |
| 264 #1 - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE (R) |
|---|
| Place of production, publication, distribution, manufacture (R) |
Quezon City, Philippines : |
| Name of producer, publisher, distributor, manufacturer (R) |
Bureau of Fisheries and Aquatic Resources , |
| Date of production, publication, distribution, manufacture, or copyright notice |
1960 |
| 336 ## - CONTENT TYPE |
|---|
| Content type term |
text |
| Content type code |
txt |
| 337 ## - MEDIA TYPE |
|---|
| Media type term |
computer |
| Media type code |
c |
| 338 ## - CARRIER TYPE |
|---|
| Carrier type term |
online resource |
| Carrier type code |
cr |
| 347 ## - DIGITAL FILE CHARACTERISTICS |
|---|
| File type |
text file |
| Encoding format |
PDF |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE |
|---|
| Bibliography, etc. note |
Includes bibliographical references |
| 520 3# - SUMMARY, ETC. |
|---|
| Summary, etc. |
The pronounced depletion of the goby fishery of Laguna de Bay after 1950, probably resulting from the use of a non-selective fishing gear, the geket, initiated this study of the biyang puti (Glossogobius giurus). The analysis of the length frequencies of 3,768 specimens, the examination of the ovaries of 1,019 female specimens and the measurement of the diameters of 3,233 ova formed the bases for the determination of the age and size at first sexual maturity of this species, collected from the Cardona and Taguig areas of Laguna de Bay, from August 1958 to August 1959. The fish, on the average, matures at the end of its first year of life at size range 105-114.9 millimeters. The expanded or multiple spawning habit is characteristic of the species. However, maximum spawning activity takes place from June to August. Mature eggs measure from 0.55 to 0.83 mm. in diameter. Although the detailed study of the sexual maturity stages of the male biyang puti was not done, yet a close correlation with the maturity stages of corresponding female size groups was observed. It was found from the 161 stomachs examined that although biyang puti is predominantly a vegetarian, yet it also utilizes zooplankton foi'ms and other miscellaneous food items. Furthermore, it is at the same time a piscivore, feeding on its own kind. There is no significant variation in the kind of food items taken in by the different size groups. The presence of an unidentified fluke in the majority of the size ranges of fish examined suggests a case of parasitism which might be worthy of future study. |
| 546 ## - LANGUAGE NOTE |
|---|
| Language note |
English |
| Information code or alphabet |
eng |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
Gobiidae |
| Source of heading or term |
LCSH |
| 9 (RLIN) |
2997 |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
Gobiidae |
| Geographic subdivision |
Philippines |
| Source of heading or term |
LCSH |
| 9 (RLIN) |
2996 |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
Fishing gear |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
3725 |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
Spawning |
| Source of heading or term |
LCSH |
| 9 (RLIN) |
3017 |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
Fishes |
| General subdivision |
Spawning |
| Source of heading or term |
LCSH |
| 9 (RLIN) |
3505 |
| 773 0# - HOST ITEM ENTRY |
|---|
| Host Biblionumber |
78 |
| Host Itemnumber |
139 |
| Main entry heading |
Philippines. |
| Other item identifier |
IRC00012 |
| Title |
The Philippine Journal of Fisheries |
| International Standard Serial Number |
2672-2836 (Online) |
| Related parts |
Volume 8, Issue no. 1 ( 1960), page 71-100 |
| 856 7# - ELECTRONIC LOCATION AND ACCESS |
|---|
| Access method |
Hypertext Transfer Protocol Secure |
| Uniform Resource Identifier |
https://www.nfrdi.da.gov.ph/tpjf/vol8/AGE%20AND%20SIZE%20AT%20SEXUAL%20MATURITY%20OF%20WHITE%20GOBY%20(GLOSSOGOBIUS%20GIURUS).pdf |
| Link text |
Open access |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Source of classification or shelving scheme |
Library of Congress Classification |
| Suppress in OPAC |
No |
| Koha item type |
Journal Article |
| Item part |
IMC000059 |