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Acta Biologica

Wcześniej: Zeszyty Naukowe Uniwersytetu Szczecińskiego. Acta Biologica

No. 27

By-catch mortality of beaked Sea Snake Hydrophis schistosus (Daudin, 1803) by entanglement in shore-seine operation in Goa-India


(Śmiertelność węża morskiego Hydrophis schistosus (Daudin, 1803) w sieciach typu niewód w Goa – Indie)
DOI: 10.18276/ab.2020.27-07
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ISSN:2450-8330
eISSN:2353-3013
Autorzy: Gangadhar Tambre ORCID
CSIR-National Institute of Oceanography, Dona Paula, Goa- 403004, India

Sambhaji Mote ORCID
CSIR-National Institute of Oceanography, Dona Paula, Goa- 403004, India

Kalyan De ORCID
CSIR-National Institute of Oceanography, Dona Paula, Goa- 403004, India

Deepa Yogi ORCID
CSIR-National Institute of Oceanography, Dona Paula, Goa- 403004, India

Mahesh Jadhav ORCID
CSIR-National Institute of Oceanography, Dona Paula, Goa- 403004, India

Baban Ingole ORCID
CSIR-National Institute of Oceanography, Dona Paula, Goa- 403004, India

Tapas Chatterjee ORCID
Near Harimandir Road, Dhanbad 826001, Jharkhand, India

Mandar Nanajkar ORCID
CSIR-National Institute of Oceanography, Dona Paula, Goa- 403004, India
Słowa kluczowe: wąż morski Hydrophis schistosus Arius jella sum morski przyłów Goa Indie
Data wydania numeru / monografii:2020
Liczba stron:10 (67-76)
OAI-PMH:Metadane
Cited-by (Crossref) ?: Włącz JavaScript, aby pobrać dane cytowań.
CC BY-SA Open Access DOAJ
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Abstrakt

Wąż Hydrophis schistosus (Daudin, 1803) występuje powszechnie w płytkich wodach morskich i estuariach na wybrzeżu Indii, gdzie często jest łapany jako przyłów w sieciach typu niewód. Do dzisiaj niewiele wiadomo na temat wielkości przyłowu tego gatunku na wybrzeżu Indii. Ponieważ wąż ten jest drapieżnikiem znajdującym się wysoko w piramidzie troficznej ekosys-temu wód przybrzeżnych Indii, jego dodatkowa śmiertelność może mieć znaczący wpływ na funkcjonowanie całego ekosystemu. W artykule zawierto dane dotyczące wielkości przyłowu I preferencji pokarmowych H. schistosus z wybrzeża Caranzalem-Miramar zatoki Caranzalem (Goa) w czasie monsunu (sierpień–wrzesień, 2017 i 2018 r.). Obserwacje wskazują, że ak-tywność rybacka, a szczególnie używanie sieci typu niewód, powodują znaczną śmiertelność węży (20–60 osobników zaplątanych w jednej sieci). Młode osobniki stanowią 90% przyłowu. Analiza żołądków H. schistosus wykazała, że 80% węży preferowała suma morskiego Arius jella jako zdobycz, co powodowało częste zaplątywanie się węży w sieci używane do połowu suma morskiego. Konieczne jest rozważenie alternatywnych metod połowowych, aby uniknąć przyłowu węży.

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