Distribution, abundance and diversity of fish larvae in Santa Rosa coastal lagoon, Sonora, Mexico
In order to determine the distribution, abundance and diversity of fish larvae in the coastal lagoon of Santa Rosa, Sonora, monthly surface samplings of plankton were carried out from November 1987 to October 1988. A cylindroconical net of 55 cm diameter and 505 µm mesh size was used. Forty-one type...
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Những tác giả chính: | , , |
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Định dạng: | Online |
Ngôn ngữ: | eng |
Được phát hành: |
Iniversidad Autónoma de Baja California
1992
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Truy cập trực tuyến: | https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/888 |
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Tóm tắt: | In order to determine the distribution, abundance and diversity of fish larvae in the coastal lagoon of Santa Rosa, Sonora, monthly surface samplings of plankton were carried out from November 1987 to October 1988. A cylindroconical net of 55 cm diameter and 505 µm mesh size was used. Forty-one types of larvae representing 20 families were collected, of which 15 were identified to species, 10 to genus and 15 to family. The highest abundance was recorded in March (3,930 organisms/100 m3) and the lowest in July (159 organisms/100 m3). The family Gobiidae constituted 60.7% of the total catch, Atherinidae 9.5%, Clinidae 5.6% and the rest of the families less than 5% each. The values of the diversity index were influenced by the family Gobiidae, which maintained its dominance despite the great tidal exchange, and the fact that no spatial abundance gradient was found could be attributed to this. |
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